Lathe tailstock

Abstract

The utility model discloses a lathe tailstock which comprises a base, a connecting column and a hand wheel assembly, the base comprises an upper base body and a lower base body, a locking eccentric shaft is arranged at the bottom of the lower base body, a locking pin is installed on the locking eccentric shaft in a penetrating mode, and the locking pin can fix the lathe tailstock. In addition, a sliding groove is formed, and an adjusting nail is arranged at the end of the sliding groove and used for adjusting left-right displacement of the tailstock. According to the lathe tailstock provided by the utility model, the locking eccentric shaft is combined with the locking pin, so that the stability of the lathe tailstock is enhanced, and the lathe tailstock can adapt to different machining scenes and workpiece requirements. Through the design of the sliding groove and the adjusting nail, the requirements of different workpieces for position precision are met, flexibility is improved, operation is simplified, and efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of machining equipment, and in particular to a lathe tailstock. Background Technology

[0002] In the machining industry, the tailstock of a lathe is one of the key components, bearing the important responsibilities of supporting the workpiece, assisting axial feed, and ensuring machining accuracy. Although the design of traditional lathe tailstocks meets basic machining requirements to a certain extent, there are still many shortcomings in practical applications.

[0003] First, the adjustment mechanism of traditional lathe tailstocks is relatively simple, often relying solely on bolts or nuts for fixing and adjustment. This method not only has limited precision but also tends to loosen after prolonged use, affecting machining quality. Furthermore, traditional tailstocks often fail to meet the requirements for precisely adjusting workpiece position, limiting the machining range and flexibility.

[0004] Secondly, the traditional tailstock fixing method for lathes also has problems. Due to unreasonable design of the fixing mechanism or inappropriate material selection, the tailstock is prone to displacement or vibration during operation, affecting machining accuracy and stability. Especially when performing high-precision machining, this displacement or vibration often becomes a bottleneck restricting machining quality.

[0005] To address the aforementioned issues, industry researchers have continuously explored and improved the design of lathe tailstocks. However, most lathe tailstocks currently on the market still follow traditional design concepts, making it difficult to fundamentally solve the problems. Therefore, it is necessary to innovate the structure of lathe tailstocks to improve their adjustment accuracy, stability, and overall machining performance. Utility Model Content

[0006] In view of the above-mentioned shortcomings of current lathe tailstocks, this utility model provides a lathe tailstock that significantly enhances the stability of the lathe tailstock on the worktable and enables the lathe tailstock to be finely adjusted in the horizontal direction, thereby improving the flexibility and accuracy of adjustment.

[0007] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions:

[0008] On one hand, a lathe tailstock includes a base, a connecting column, and a handwheel assembly connected in sequence. The base includes an upper base and a lower base. The lower end of the connecting column is connected to the upper base, and the upper end of the connecting column is connected to the handwheel assembly. The lower base is located below the upper base. The lower base is provided with a locking eccentric shaft, and a locking hole is provided through the locking eccentric shaft. A locking pin is provided in the locking hole, and the locking pin cooperates with the lathe to fix the lower base. A sliding groove is provided at the connection between the upper base and the lower base, and an adjusting pin is provided at the end of the sliding groove to adjust the left and right displacement of the tailstock.

[0009] Preferably, the handwheel assembly includes a lead screw, a handwheel base, and a handwheel. The handwheel base is fixedly connected to the upper end of the connecting column. The lead screw and the handwheel base are threadedly connected. The handwheel is fixedly connected to the end of the lead screw. A handwheel handle is installed on the handwheel. A sleeve is fitted onto the lead screw.

[0010] Preferably, the handwheel base is provided with a closed cover near the handwheel end.

[0011] Preferably, the sealing cap has elastic holes.

[0012] Preferably, the slide groove is provided with a connector, one end of which is connected to the upper base and the other end of which is connected to the lower base. Each end of the connector is connected to an adjusting pin, which is disposed on the lower base.

[0013] Preferably, the connector is provided with a short nail, one end of which is connected to the base.

[0014] Preferably, the base has a through hole, which is located at the center of the base in the vertical direction. The through hole includes an upper base through hole and a lower base through hole, the diameter of which is larger than that of which is lower base through hole. A base fixing bolt is installed in the through hole.

[0015] Preferably, a handwheel base fixing bolt is provided on the handwheel base, and one end of the handwheel base fixing bolt is connected to a connecting post.

[0016] Preferably, a long nail is provided inside the connecting column, the upper end of the long nail is connected to the handwheel base, and the lower end is connected to the upper base, and the length of the long nail is greater than the length of the connecting column.

[0017] Preferably, there are two sets of locking eccentric shafts and locking pins, which are installed at the left and right ends of the lower base respectively.

[0018] Advantages of this invention: The lathe tailstock has a simple structure. The locking eccentric shaft and locking pin at the bottom combine to form a double locking mechanism, enhancing the stability of the tailstock on the worktable and allowing the operator to adjust the locking position according to actual needs to adapt to different machining scenarios and workpiece requirements. Furthermore, a sliding groove and adjusting pin between the upper and lower bases allow for fine-tuning of the tailstock in the horizontal direction. This design meets the positional accuracy requirements of different workpieces, improves the flexibility and precision of adjustment, simplifies the operation process, and increases work efficiency. By designing a positioning method that eliminates the need for specific pin holes, this invention allows the lathe tailstock to adapt more flexibly to different models and specifications of lathes, improving its versatility and interchangeability. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in 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.

[0020] Figure 1 This is a front sectional view of a lathe tailstock according to one embodiment of the present invention;

[0021] Figure 2 This is a side sectional view of a lathe tailstock according to one embodiment of the present invention;

[0022] Figure 3 This is a side sectional view of a lathe tailstock according to one embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the appearance of a lathe tailstock according to one embodiment of the present invention. Detailed Implementation

[0024] 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.

[0025] Example 1

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a lathe tailstock includes a base, a connecting column 3, and a handwheel assembly connected in sequence. The base includes an upper base 2 and a lower base 1. The lower end of the connecting column 3 is connected to the upper base 2, and the upper end of the connecting column 3 is connected to the handwheel assembly. The lower base 1 is located below the upper base 2. The lower base 1 is provided with a locking eccentric shaft 9, and a locking hole is provided through the locking eccentric shaft 9. A locking pin 10 is provided in the locking hole. The locking pin 10 cooperates with the lathe to fix the lower base 1. A sliding groove 11 is provided at the connection between the upper base 2 and the lower base 1. An adjusting pin 12 is provided at the end of the sliding groove 11 to adjust the left and right displacement of the tailstock.

[0027] Example 2

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a lathe tailstock includes a base, a connecting column 3, and a handwheel assembly connected in sequence. The base includes an upper base 2 and a lower base 1. The lower end of the connecting column 3 is connected to the upper base 2, and the upper end of the connecting column 3 is connected to the handwheel assembly. The lower base 1 is located below the upper base 2. A locking eccentric shaft 9 is provided on the lower base 1, and a locking hole is provided through the locking eccentric shaft 9. A locking pin 10 is provided in the locking hole, and the locking pin 10 cooperates with the lathe to fix the lower base 1. A sliding groove 11 is provided at the connection between the upper base 2 and the lower base 1. An adjusting pin 12 is provided at the end of the sliding groove 11 to adjust the left and right displacement of the tailstock. By designing the lower base 1 and configuring the locking eccentric shaft 9 and locking pin 10, this double locking mechanism can significantly enhance the stability of the lathe tailstock on the worktable, reduce displacement caused by vibration or impact, and ensure stability during the machining process. The design of a sliding groove 11 and an adjusting pin 12 between the upper base 2 and the lower base 1 allows the lathe tailstock to be finely adjusted in the horizontal direction, meeting the positional accuracy requirements of different workpieces and improving the flexibility and precision of adjustment.

[0029] The handwheel assembly includes a lead screw 4, a handwheel base 8, and a handwheel 5. The handwheel base 8 is fixedly connected to the upper end of the connecting column 3. The lead screw 4 and the handwheel base 8 are threaded together. The handwheel 5 is fixedly connected to the end of the lead screw 4. A handwheel handle 6 is installed on the handwheel 5. A sleeve 7 is fitted onto the lead screw 4, and the handwheel base 8 is provided outside the sleeve 7. This makes the structure of the handwheel assembly more compact, which not only reduces the overall volume but also enhances the rigidity and stability of the assembly, which is beneficial for maintaining machining accuracy.

[0030] The slide groove 11 includes a connector 13, one end of which is connected to the upper base 2, and the other end to the lower base 1. Each end of the connector 13 is connected to an adjusting pin 12, which are mounted on the lower base 1. This design enhances the connection between the upper base 2 and the lower base 1, making the lathe tailstock more stable when adjusting its left and right displacement. By adjusting the positions of the connector 13 and the adjusting pins 12, the position of the lathe tailstock can be quickly adjusted to adapt to different machining requirements.

[0031] The connector 13 is equipped with a short nail 18, one end of which is connected to the upper base 2 and used to fix the connector 13 to the upper base 2. This enhances the connection strength between the upper base 2 and the connector 13, reduces assembly steps and time, and improves production efficiency.

[0032] The handwheel base 8 is provided with a handwheel base fixing bolt 16. One end of the handwheel base fixing bolt 16 is connected to the connecting column 3 to fix the handwheel base 8, thereby enhancing the stability of the handwheel base 8 and preventing the handwheel base 8 from loosening or falling off due to vibration or impact during processing, thus ensuring the overall stability and reliability of the lathe tailstock.

[0033] The connecting column 3 contains a long nail 17. The upper end of the long nail 17 is connected to the handwheel base 8, and the lower end is connected to the upper base 2. The length of the long nail 17 is greater than the length of the connecting column 3, and it is used to fix the handwheel base 8 and the connecting column 3 to the upper base 2. This design effectively and firmly connects the handwheel base 8, the connecting column 3, and the upper base 2 together. This three-point fixing method significantly enhances the overall structural stability of the lathe tailstock.

[0034] The locking eccentric shaft 9 and locking pin 10 are provided in two sets, respectively installed at the left and right ends of the lower base 1. The design of the two sets of locking eccentric shafts 9 and locking pins 10 allows the operator to adjust the locking position according to actual needs to adapt to different processing requirements.

[0035] Example 3

[0036] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a lathe tailstock includes a base, a connecting column 3, and a handwheel assembly connected in sequence. The base includes an upper base 2 and a lower base 1. The lower end of the connecting column 3 is connected to the upper base 2, and the upper end of the connecting column 3 is connected to the handwheel assembly. The lower base 1 is located below the upper base 2. A locking eccentric shaft 9 is provided on the lower base 1, and a locking hole is provided through the locking eccentric shaft 9. A locking pin 10 is provided in the locking hole, and the locking pin 10 cooperates with the lathe to fix the lower base 1. A sliding groove 11 is provided at the connection between the upper base 2 and the lower base 1. An adjusting pin 12 is provided at the end of the sliding groove 11 to adjust the left and right displacement of the tailstock. By designing the lower base 1 and configuring the locking eccentric shaft 9 and locking pin 10, this double locking mechanism can significantly enhance the stability of the lathe tailstock on the worktable, reduce displacement caused by vibration or impact, and ensure stability during the machining process. The design of a sliding groove 11 and an adjusting pin 12 between the upper base 2 and the lower base 1 allows the lathe tailstock to be finely adjusted in the horizontal direction, meeting the positional accuracy requirements of different workpieces and improving the flexibility and precision of adjustment.

[0037] The handwheel assembly includes a lead screw 4 and a handwheel 5, which are fixedly connected. A handwheel handle 6 is mounted on the handwheel 5. A sleeve 7 is fitted onto the lead screw 4, and a handwheel base 8 is fitted onto the sleeve 7. This design, where the lead screw 4 is fitted with the sleeve 7 and the sleeve 7 is fitted with the handwheel base 8, makes the handwheel assembly more compact, reducing its overall size and enhancing its rigidity and stability, which is beneficial for maintaining machining accuracy.

[0038] The handwheel base 8 is equipped with a sealing cover 14 near the handwheel 5 to prevent dust and chips from entering. This not only protects the internal mechanical structure from damage and extends the service life of the equipment, but also ensures the cleanliness of the processing environment, thereby improving processing accuracy and surface quality. The presence of the sealing cover 14 reduces wear and tear and malfunctions of the internal mechanical structure caused by dust and chip accumulation, thus lowering the frequency and cost of equipment maintenance.

[0039] The sealing cover 14 features elastic holes. By incorporating these holes, the parts exhibit better elastic deformation under external forces, thereby enhancing their adaptability and durability. The holes act as stress dispersion points and expansion spaces, allowing for a more even distribution of preload during tightening, improving the connection strength and sealing between parts. This elastic design helps reduce the risk of fatigue damage and failure during long-term use.

[0040] The slide 11 includes a connector 13, with an adjusting pin 12 connected to each end of the connector 13. The adjusting pins 12 are mounted on the lower base 1. This design enhances the connection strength between the upper base 2 and the lower base 1, making the lathe tailstock more stable when adjusting its left and right displacement. By adjusting the positions of the connector 13 and the adjusting pins 12, the position of the lathe tailstock can be quickly adjusted to adapt to the requirements of different machining scenarios.

[0041] The connector 13 is equipped with a short nail 18, one end of which is connected to the upper base 2 and used to fix the connector 13 to the upper base 2. This enhances the connection strength between the upper base 2 and the connector 13, reduces assembly steps and time, and improves production efficiency.

[0042] The handwheel base 8 is provided with a handwheel base fixing bolt 16. One end of the handwheel base fixing bolt 16 is connected to the connecting column 3 to fix the handwheel base 8, thereby enhancing the stability of the handwheel base 8 and preventing the handwheel base 8 from loosening or falling off due to vibration or impact during processing, thus ensuring the overall stability and reliability of the lathe tailstock.

[0043] The connecting column 3 contains a long nail 17. The upper end of the long nail 17 is connected to the handwheel base 8, and the lower end is connected to the upper base 2. The length of the long nail 17 is greater than the length of the connecting column 3, and it is used to fix the handwheel base 8 and the connecting column 3 to the upper base 2. This design effectively and firmly connects the handwheel base 8, the connecting column 3, and the upper base 2 together. This three-point fixing method significantly enhances the overall structural stability of the lathe tailstock.

[0044] The locking eccentric shaft 9 and locking pin 10 are provided in two sets, respectively installed at the left and right ends of the lower base 1. The design of the two sets of locking eccentric shafts 9 and locking pins 10 allows the operator to adjust the locking position according to actual needs to adapt to different processing requirements.

[0045] Example 4

[0046] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a lathe tailstock includes a base, a connecting column 3, and a handwheel assembly connected in sequence. The base includes an upper base 2 and a lower base 1. The lower end of the connecting column 3 is connected to the upper base 2, and the upper end of the connecting column 3 is connected to the handwheel assembly. The lower base 1 is located below the upper base 2. A locking eccentric shaft 9 is provided on the lower base 1, and a locking hole is provided through the locking eccentric shaft 9. A locking pin 10 is provided in the locking hole, and the locking pin 10 cooperates with the lathe to fix the lower base 1. A sliding groove 11 is provided at the connection between the upper base 2 and the lower base 1. An adjusting pin 12 is provided at the end of the sliding groove 11 to adjust the left and right displacement of the tailstock. By designing the lower base 1 and configuring the locking eccentric shaft 9 and locking pin 10, this double locking mechanism can significantly enhance the stability of the lathe tailstock on the worktable, reduce displacement caused by vibration or impact, and ensure stability during the machining process. The design of a sliding groove 11 and an adjusting pin 12 between the upper base 2 and the lower base 1 allows the lathe tailstock to be finely adjusted in the horizontal direction, meeting the positional accuracy requirements of different workpieces and improving the flexibility and precision of adjustment.

[0047] The base includes a through hole located at its center along the vertical direction. This through hole includes corresponding through holes for the upper base 2 and the lower base 1. The diameter of the through hole in the upper base 2 is larger than that in the lower base 1. A base fixing bolt 15 is installed in the through hole to secure the upper base 2 to the upper hole in the lower base 1. This design allows for a wider adjustment range and greater flexibility when the upper base 2 is adjusted left and right using the adjusting pin 12. The use of through holes with different diameters and the adjusting pin 12 simplifies the adjustment process of the lathe tailstock. The operator only needs to adjust the position of the adjusting pin 12 in the slide groove 11 of the upper base 2 to achieve left and right displacement adjustment of the upper base 2.

[0048] The handwheel assembly includes a lead screw 4 and a handwheel 5, which are fixedly connected. A handwheel handle 6 is mounted on the handwheel 5. A sleeve 7 is fitted onto the lead screw 4, and a handwheel base 8 is fitted onto the sleeve 7. This design, where the lead screw 4 is fitted with the sleeve 7 and the sleeve 7 is fitted with the handwheel base 8, makes the handwheel assembly more compact, reducing its overall size and enhancing its rigidity and stability, which is beneficial for maintaining machining accuracy.

[0049] The slide 11 includes a connector 13, with an adjusting pin 12 connected to each end of the connector 13. The adjusting pins 12 are mounted on the lower base 1. This design enhances the connection strength between the upper base 2 and the lower base 1, making the lathe tailstock more stable when adjusting its left and right displacement. By adjusting the positions of the connector 13 and the adjusting pins 12, the position of the lathe tailstock can be quickly adjusted to adapt to the requirements of different machining scenarios.

[0050] The connector 13 is equipped with a short nail 18, one end of which is connected to the upper base 2 and used to fix the connector 13 to the upper base 2. This enhances the connection strength between the upper base 2 and the connector 13, reduces assembly steps and time, and improves production efficiency.

[0051] The handwheel base 8 is equipped with a handwheel base fixing bolt 16, which is used to fix the handwheel base 8, thereby enhancing the stability of the handwheel base 8 and preventing the handwheel base 8 from loosening or falling off due to vibration or impact during processing, thus ensuring the overall stability and reliability of the lathe tailstock.

[0052] The connecting column 3 contains a long nail 17. The upper end of the long nail 17 is connected to the handwheel base 8, and the lower end is connected to the upper base 2. The length of the long nail 17 is greater than the length of the connecting column 3, and it is used to fix the handwheel base 8 and the connecting column 3 to the upper base 2. This design effectively and firmly connects the handwheel base 8, the connecting column 3, and the upper base 2 together. This three-point fixing method significantly enhances the overall structural stability of the lathe tailstock.

[0053] The locking eccentric shaft 9 and locking pin 10 are provided in two sets, respectively installed at the left and right ends of the lower base 1. The design of the two sets of locking eccentric shafts 9 and locking pins 10 allows the operator to adjust the locking position according to actual needs to adapt to different processing requirements.

[0054] Advantages of this invention: The lathe tailstock has a simple structure. The locking eccentric shaft 9 and locking pin 10 at the bottom combine to form a double locking mechanism, enhancing the stability of the lathe tailstock on the worktable and allowing the operator to adjust the locking position according to actual needs to adapt to different processing scenarios and workpiece requirements. Furthermore, a sliding groove 11 and adjusting pin 12 between the upper base 2 and the lower base 1 are provided, enabling fine-tuning of the lathe tailstock in the horizontal direction. This design meets the positional accuracy requirements of different workpieces, improves the flexibility and precision of adjustment, simplifies the operation process, and increases work efficiency. This invention, by designing a positioning method that does not require specific pin holes, allows the lathe tailstock to adapt more flexibly to different models and specifications of lathes, improving the versatility and interchangeability of the tailstock.

[0055] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A lathe tailstock, comprising a base, a connecting column (3), and a handwheel assembly connected in sequence, wherein the base comprises an upper base (2) and a lower base (1), the lower end of the connecting column (3) is connected to the upper base (2), the upper end of the connecting column (3) is connected to the handwheel assembly, and the lower base (1) is disposed below the upper base (2), characterized in that, The lower base (1) is provided with a locking eccentric shaft (9), and a locking hole is provided through the locking eccentric shaft (9). A locking pin (10) is provided in the locking hole. The locking pin (10) cooperates with the lathe to fix the lower base (1). The upper base (2) is provided with a sliding groove (11) at the connection between the upper base (2) and the lower base (1). An adjusting pin (12) is provided at the end of the sliding groove (11) to adjust the left and right displacement of the tailstock.

2. The lathe tailstock according to claim 1, characterized in that, The handwheel assembly includes a lead screw (4), a handwheel base (8), and a handwheel (5). The handwheel base (8) is fixedly connected to the upper end of the connecting column (3). The lead screw (4) and the handwheel base (8) are threadedly connected. The handwheel (5) is fixedly connected to the end of the lead screw (4). A handwheel handle (6) is installed on the handwheel (5). A sleeve (7) is fitted onto the lead screw (4).

3. The lathe tailstock according to claim 2, characterized in that, The handwheel base (8) is provided with a closed cover (14) near the end of the handwheel (5).

4. The lathe tailstock according to claim 3, characterized in that, The sealing cover (14) is provided with elastic holes.

5. The lathe tailstock according to claim 1, characterized in that, The slide (11) is provided with a connector (13), one end of which is connected to the upper base (2) and the other end is connected to the lower base (1). Each end of the connector (13) is connected to an adjusting pin (12), and the adjusting pin (12) is set on the lower base (1).

6. The lathe tailstock according to claim 5, characterized in that, The connector (13) is provided with a short nail (18), one end of which is connected to the base (2).

7. The lathe tailstock according to claim 1, characterized in that, The base is provided with a through hole, which is located at the center of the base in the vertical direction. The through hole includes a through hole for the upper base (2) and a through hole for the lower base (1). The diameter of the through hole for the upper base (2) is larger than that for the lower base (1). A base fixing bolt (15) is installed in the through hole.

8. The lathe tailstock according to claim 2, characterized in that, The handwheel base (8) is provided with a handwheel base fixing bolt (16), and one end of the handwheel base fixing bolt (16) is connected to the connecting column (3).

9. The lathe tailstock according to claim 1, characterized in that, The connecting column (3) is provided with a long nail (17), the upper end of the long nail (17) is connected to the handwheel base (8), and the lower end is connected to the upper base (2). The length of the long nail (17) is greater than the length of the connecting column (3).

10. The lathe tailstock according to claim 1, characterized in that, Two sets of locking eccentric shafts (9) and locking pins (10) are provided, which are installed on the left and right ends of the lower base (1).

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