Rotary frame for lathe and using method of rotary frame

Abstract

The rotary frame for the lathe comprises a frame body, the frame body is rotationally arranged on an external lathe mounting plate, a mounting groove with two through sides is formed in the side wall of the frame body, and a lower plate used for supporting a turning tool is arranged on the side wall below the mounting groove. An upper plate corresponding to the lower plate is arranged in the mounting groove and located on the side wall opposite to the lower plate, a rotating shaft is rotationally arranged on the frame body, a first driving part used for driving the lower plate to ascend and descend in the direction of the upper plate is arranged between the rotating shaft and the lower plate, and a fixing part used for locking the relative position of the upper plate and the lower plate is arranged on the frame body. A second driving piece used for driving the upper plate locked by the fixing piece to ascend and descend in the direction of the lower plate is arranged between the rotating shaft and the upper plate. The frame solves the problems that a traditional turning tool rest is limited in adjusting range, low in repeated positioning precision and the like, and the quality efficiency and adaptability of turning machining are remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of lathe component design technology, and in particular to a rotary lathe frame for lathes and its usage method. Background Technology

[0002] A lathe is a machine tool that primarily uses a cutting tool to machine rotating workpieces. Lathes are the most important type of metal cutting machine tool, and are the most numerous and prevalent type of machine tool in general machine manufacturing plants; they are also known as "mother machines."

[0003] When machining on a lathe, a cutting tool needs to be installed on the lathe's rotary carriage. Then, a series of tool setting and fixing processes are required to complete the installation preparation work.

[0004] The existing invention patent, such as the one with publication number CN103817358A entitled "A Lathe Tool Post", includes: a base, a clamping plate, a spring, a cover plate, and fixing bolts. The base is provided with a clamping plate, a spring is provided between the clamping plate and the base, a cover plate is provided on top of the base, and fixing bolts are provided around the cover plate.

[0005] Traditional lathe tools like those described above are often difficult to tighten in practice because they are secured by a bolt group consisting of multiple bolts. Each bolt is tightened manually, which makes it difficult to ensure the tool is properly secured and can lead to uneven stress on the tool. Furthermore, traditional tool holders often use shims placed under the tool to adjust its height, requiring repeated manual insertion of shims of varying thicknesses to align the tool with the workpiece axis. This method is not only cumbersome but also often fails to accurately align the tool with the workpiece axis. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a rotary lathe frame for lathes and its usage method, which solves the technical problems of cumbersome tool installation steps, low installation efficiency, and difficulty in accurately aligning the workpiece axis to complete tool setting operations using traditional lathe frames.

[0007] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0008] A rotary frame for lathe, comprising a frame body, the frame body is rotatably arranged on an external lathe mounting plate, a mounting slot is formed in the side wall of the frame body, the mounting slot is provided with a lower plate for supporting a tool bit, an upper plate corresponding to the lower plate is arranged on the opposite side wall of the mounting slot, a rotating shaft is arranged on the frame body, a first driving member is arranged between the rotating shaft and the lower plate for driving the lower plate to move upward, a fixing member is arranged on the frame body for locking the relative position of the upper plate and the lower plate, a second driving member is arranged between the rotating shaft and the upper plate for driving the upper plate to move downward.

[0009] The first driving assembly comprises a first screw rod, a first sliding rod, a first inclined block I and a first inclined block II, a first cavity is formed in the frame body, the bottom end of the rotating shaft is vertically downward and rotatably arranged in the first cavity, the first screw rod is horizontally rotatably arranged in the first cavity, the first sliding rod is horizontally fixedly arranged in the first cavity, a first worm wheel is fixedly arranged on the first screw rod, the end of the rotating shaft extending into the first cavity is a worm segment and is in meshing connection with the first worm wheel, a first sliding block is threadedly arranged on the first screw rod, one end of the first sliding block is slidably arranged on the first sliding rod, the first inclined block I is fixedly arranged on the first sliding block, a first countersunk hole is formed in the mounting slot and below the lower plate, the first countersunk hole is in communication with the first cavity, a support block is fixedly arranged at the bottom of the lower plate, the support block is slidably arranged in the first countersunk hole, the first inclined block II is fixedly arranged below the support block, and the inclined surfaces of the first inclined block I and the first inclined block II are in sliding abutment with each other.

[0010] The support block and the first inclined block II are provided with a plurality of reset rods, a first avoiding slot is formed in the first cavity and at the opening of the first countersunk hole, a reset spring is arranged on each of the reset rods, and the two ends of each of the reset springs are fixedly connected with the first inclined block II and the side wall of the first avoiding slot, respectively.

[0011] The application is further provided with: the second driving member comprises a second screw rod, a second sliding rod, a second inclined block I and a second inclined block II, a second cavity is formed in the frame body, the rotating shaft is vertically arranged in the second cavity, the part of the rotating shaft extending into the second cavity is also a worm segment, sliding grooves are formed on opposite sides of the second cavity, sliding blocks are slidably arranged in the two sliding grooves, the second screw rod is horizontally arranged on one of the sliding blocks, a second worm wheel is fixedly arranged on the second screw rod, the fixing member is used for meshing the second worm wheel with the worm segment, the second sliding rod is horizontally fixed on the other sliding block, a second sliding block is threadedly arranged on the second screw rod, one end of the second sliding block is slidably arranged on the second sliding rod, the second inclined block I is fixedly arranged on the second sliding block, a second countersunk hole is formed in the mounting groove and above the upper plate, the second countersunk hole is communicated with the second cavity, a clamping block is fixedly arranged on the bottom of the lower plate, the clamping block is slidably arranged in the second countersunk hole, the second inclined block II is fixedly arranged on the side of the clamping block away from the upper plate, and the inclined surfaces of the second inclined block I and the second inclined block II are slidably abutted.

[0012] The application is further provided with: a plurality of clamping rods are fixedly arranged between the clamping block and the second inclined block II, a second avoiding groove is formed in the second cavity and at the opening of the second countersunk hole, a first spring is arranged on each of the clamping rods, and the two ends of each of the first springs are fixedly connected with the second inclined block II and the side wall of the second avoiding groove.

[0013] The application is further provided with: a plurality of clamping grooves are formed in the clamping block, the clamping rods are slidably arranged in the clamping grooves in one-to-one correspondence, a second spring is fixedly arranged in each of the clamping grooves, the second spring is fixedly connected with the end of the clamping rod, a groove is vertically formed in the side wall of each of the clamping grooves, a protruding block is arranged on the end of each of the clamping rods, and each of the protruding blocks is slidably arranged in the groove.

[0014] The application is further provided with: the fixing member comprises a mounting sleeve with a thread and a pin rod, a fixing hole is formed in the frame body and communicated with the second cavity, the mounting sleeve is fixedly arranged in the fixing hole, the pin rod is threadedly arranged in the mounting sleeve, an ejection plate is slidably arranged in the fixing hole, the end of the pin rod penetrating through the mounting sleeve is abutted with the ejection plate, a plurality of ejection rods are fixedly arranged between the ejection plate and the sliding block provided with the second screw rod, an ejection spring is arranged on each of the ejection rods, and the two ends of the ejection spring are fixedly connected with the sliding block and the side wall of the second cavity.

[0015] The application is further provided with: clamping plates are fixedly arranged on the opposite sides of the upper plate and the lower plate, and anti-skid layers are arranged on the opposite sides of the two clamping plates.

[0016] The top of the rotating shaft is provided with a hexagonal top cap, and an inner hexagonal groove is formed in the end of the pin rod away from the ejection plate.

[0017] A method for using a rotary carriage for a lathe, comprising the steps of,

[0018] S1: installing the turning tool in the mounting slot on the carriage body, so that the bottom of the turning tool is supported on the lower plate;

[0019] S2: rotating the rotating shaft to drive the lower plate to rise and fall, and to move the lower plate and the turning tool towards the upper plate, until the top of the turning tool is in complete abutment with the upper plate and is fixed;

[0020] S3: locking the relative position of the upper plate and the lower plate by the fixing member, and enabling the upper plate to be driven to rise and fall by the rotating shaft and the second driving assembly;

[0021] S4: adjusting the external lathe mounting plate to move the carriage body towards the workpiece, and finally rotating the rotating shaft to make the upper plate and the lower plate drive the clamped turning tool to rise and fall in height, so that the turning tool tip is aligned with the workpiece axis, and the tool setting is completed.

[0022] Compared with the prior art, the beneficial effects obtained are:

[0023] The device can effectively clamp the turning tool without damaging the external turning tool, and the lower plate can be effectively driven to rise and fall in the mounting slot by the first driving member, which is conducive to subsequent adjustment of the height of the turning tool. The upper plate can be effectively limited after the turning tool is clamped by the upper plate and the lower plate by the fixing member, and the height of the turning tool can be adjusted by the first driving member, the second driving member and the rotating shaft, effectively overcoming the problems of limited adjustment range, low repeat positioning accuracy and the like of traditional turning tool holders, and significantly improving the quality efficiency and adaptability of turning processing. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present application;

[0025] Figure 2 It is a partial cross-sectional schematic diagram of the embodiment of the present application;

[0026] Figure 3 It is Figure 2 the enlarged schematic diagram of the structure at A of

[0027] Figure 4 It is a partial cross-sectional schematic diagram of the first cavity;

[0028] Figure 5 It is Figure 2 the enlarged schematic diagram of the structure at B of

[0029] Figure 6 The structure section view of the fixing member.

[0030] In the above drawings: 1, frame body; 2, mounting groove; 3, lower plate; 4, upper plate; 5, rotating shaft; 6, first screw rod; 7, first sliding rod; 8, first inclined block I; 9, first inclined block II; 10, first cavity; 11, first worm wheel; 12, first sliding block; 13, first countersunk hole; 14, supporting block; 15, reset rod; 16, first avoiding groove; 17, reset spring; 18, second screw rod; 19, second sliding rod; 20, second inclined block I; 21, second inclined block II; 22, second cavity; 23, sliding groove; 24, sliding block; 25, second worm wheel; 26, second sliding block; 27, second countersunk hole; 28, clamping block; 29, clamping rod; 30, second avoiding groove; 31, first spring; 32, second spring; 33, recess; 34, protruding block; 35, mounting sleeve; 36, pin rod; 37, fixing hole; 38, ejection plate; 39, ejection rod; 40, ejection spring; 41, clamping plate; 42, anti-skid layer; 43, hexagonal top hat; 44, internal hexagonal groove; 45, worm segment. DETAILED DESCRIPTION

[0031] The technical solutions in the present application will be further described below in combination with the drawings and embodiments.

[0032] Embodiment:

[0033] With reference to Figures 1-6 The present application is a rotary frame for a lathe, comprising a frame body 1, which is rotatably arranged on an external lathe mounting plate, a mounting groove 2 is formed through the side walls of the frame body 1, a lower plate 3 for supporting a turning tool is arranged on the lower side wall of the mounting groove 2, an upper plate 4 corresponding to the lower plate 3 is arranged on the opposite side wall of the mounting groove 2, a rotating shaft 5 is rotatably arranged on the frame body 1, a hexagonal top hat 43 is arranged on the top of the rotating shaft 5, and a first driving member for driving the lower plate 3 to move up and down towards the upper plate 4 is arranged between the rotating shaft 5 and the lower plate 3. Figure 2 , Figure 3 and Figure 4As shown, the first driving assembly comprises a first screw rod 6, a first slide rod 7, a first inclined block I 8 and a first inclined block II 9, a first cavity 10 is formed in the frame body 1, the bottom end of the rotating shaft 5 is vertically downward and rotatably arranged in the first cavity 10, the first screw rod 6 is horizontally rotatably arranged in the first cavity 10, the first slide rod 7 is horizontally fixedly arranged in the first cavity 10, the first screw rod 6 is fixedly provided with a first worm wheel 11, the end of the rotating shaft 5 extending into the first cavity 10 is a worm segment 45 and is in meshing connection with the first worm wheel 11, the first screw rod 6 is threadedly sleeved with a first slide block 12, one end of the first slide block 12 is slidably sleeved on the first slide rod 7, the first inclined block I 8 is fixedly arranged on the first slide block 12, a first countersunk hole 13 in communication with the first cavity 10 is formed in the mounting groove 2 and below the lower plate 3, the lower plate 3 is fixedly provided with a supporting block 14, the supporting block 14 is slidably arranged in the first countersunk hole 13, the first inclined block II 9 is fixedly arranged below the supporting block 14, and the inclined surfaces of the first inclined block I 8 and the first inclined block II 9 are in sliding abutment with each other. In this way, the rotation of the rotating shaft 5 drives the worm segment 45 extending into the first cavity 10 to rotate, drives the meshing first worm wheel 11 and the first screw rod 6 to rotate, further drives the first slide block 12 and the first inclined block I 8 to move towards the first inclined block II 9, and through the sliding abutment of the inclined surfaces, the first inclined block II 9 drives the supporting block 14 and the lower plate 3 to rise upward.

[0034] As shown in Figure 2 , a plurality of reset rods 15 are fixedly arranged between the supporting block 14 and the first inclined block II 9, a first avoiding groove 16 is formed in the first cavity 10 and located at the opening of the first countersunk hole 13, a reset spring 17 is sleeved on each of the plurality of reset rods 15, and the two ends of each of the plurality of reset springs 17 are fixedly connected with the first inclined block II 9 and the side wall of the first avoiding groove 16 respectively. The reset spring 17 and the reset rod 15 can keep the inclined surfaces of the first inclined block I 8 and the first inclined block II 9 always in abutment, thereby ensuring the stability of the rising or falling of the lower plate 3.

[0035] As shown in Figure 2 , Figure 5 and Figure 6As shown, the frame body 1 is provided with a fixing member to lock the relative positions of the upper plate 4 and the lower plate 3. A second driving member is provided between the rotating shaft 5 and the upper plate 4 to drive the upper plate 4, which is locked by the fixing member, to move up and down towards the lower plate 3. The second driving member includes a second screw 18, a second slide rod 19, a second inclined block I 20, and a second inclined block II 21. A second cavity 22 is provided inside the frame body 1. The rotating shaft 5 is vertically rotatably inserted into the second cavity 22. The section of the rotating shaft 5 extending into the second cavity 22 is also a worm gear section 45. Sliding grooves 23 are provided on opposite sides of the second cavity 22. Sliding blocks 24 are slidably disposed in the two sliding grooves 23 respectively. The second screw 18 is horizontally rotatably mounted on one of the sliding blocks 24. A second worm gear 25 is fixed on the second screw 18. The fixing member is used to engage the second worm gear 25 with the worm gear section 45. The second slide rod 19 is horizontally fixed on another slide block 24. The second screw 18 is threaded with a second slider 26. One end of the second slider 26 is slidably fitted onto the second slide rod 19. The second inclined block I 20 is fixed on the second slider 26. The mounting groove 2 and the upper plate 4 are provided with a second countersunk hole 27 that communicates with the second cavity 22. The bottom of the lower plate 3 is fixed with a clamping block 28. The clamping block 28 slides into the second countersunk hole 27. The second inclined block II 21 is fixed on the side of the clamping block 28 away from the upper plate 4. The inclined surfaces of the second inclined block I 20 and the second inclined block II 21 slide against each other. The fastener includes a mounting sleeve 35 with internal threads and a pin 36. The frame body 1 has a fixing hole 37 communicating with the second cavity 22. The mounting sleeve 35 is fixed in the fixing hole 37. The pin 36 is threaded through the mounting sleeve 35. An ejector plate 38 is slidably provided in the fixing hole 37. The ejector plate 38 abuts against the end of the pin 36 that passes through the mounting sleeve 35. The end of the pin 36 away from the ejector plate 38 has an internal hexagonal groove 44. Several ejector rods 39 are fixed between the ejector plate 38 and the sliding block 24 with the second screw 18. Each of the ejector rods 39 is fitted with an ejector spring 40. The two ends of the ejector spring 40 are fixed to the side walls of the sliding block 24 and the second cavity 22, respectively. This configuration effectively drives the ejector plate 38, ejector rod 39, and sliding block 24 to move towards the rotating shaft 5 within the second cavity 22 by screwing in the pin 36. This causes the second worm gear 25 on the second screw 18 to mesh with the worm section 45 on the rotating shaft 5, achieving relative fixation between the upper plate 4 and the lower plate 3. During the movement of the second screw 18, the inclined surfaces of the second inclined block I 20 and the second inclined block II 21 remain in contact.

[0036] like Figure 2 and Figure 5As shown, the clamping block 28 and the second inclined block II 21 are fixed with a plurality of clamping rods 29, the second cavity 22 and the opening of the second countersunk hole 27 are provided with a second avoiding slot 30, the first spring 31 is sleeved on the clamping rod 29, and the two ends of the first spring 31 are respectively fixed with the second inclined block II 21 and the side wall of the second avoiding slot 30. The first spring 31 can make the second inclined block II 21 and the inclined surface of the second inclined block I 20 always slide and fit. The clamping block 28 is provided with a plurality of clamping slots, the clamping rod 29 is slidably inserted into the clamping slot, the second spring 32 is fixed in each clamping slot, the end of the clamping rod 29 is fixed with the second spring 32, the side wall of each clamping slot is vertically provided with a groove 33, the end of the clamping rod 29 is provided with a protrusion 34, and each protrusion 34 is slidably arranged in the groove 33. The second spring 32 can make the clamped tool more firm. In use, the protrusion 34 on the clamping rod 29 must abut against the side wall of the groove 33, and the second spring 32 is highly compressed in the clamping slot.

[0037] As shown in the figure, Figure 1 The upper plate 4 and the lower plate 3 are fixed with clamping plates 41 on the opposite side, and the opposite side of the two clamping plates 41 is provided with an anti-skid layer 42, which is provided with a plurality of anti-skid grooves.

[0038] The use method of the rotary frame for lathe:

[0039] First, the tool is installed in the mounting groove 2 of the frame body 1, and the bottom of the tool is stably supported on the lower plate 3 below; then the hexagonal top cap 43 at the top of the rotating shaft 5 is rotated, the rotation of the rotating shaft 5 drives the first worm gear 11 in the first cavity 10 through the worm segment 45 at the lower end of the rotating shaft 5, drives the first screw 6 to rotate, the rotation of the first screw 6 drives the first sliding block 12 to move horizontally along the first sliding rod 7, thereby pushing the first inclined block I 8 fixed on the first sliding block 12 to move forward, the inclined surface of the first inclined block I 8 and the inclined surface of the first inclined block II 9 fixed below the supporting block 14 slide relative to each other, thereby converting the horizontal movement into a vertical lifting force, pushing the first inclined block II 9, the supporting block 14 and the lower plate 3 to rise stably upward together, until the top of the tool is in contact with the upper plate 4, and the upper plate 4 is continuously compressed to the side wall of the mounting groove 2 to complete the preliminary compression. In this process, the reset spring 17 can ensure that the inclined surfaces of the first inclined block I 8 and the first inclined block II 9 always fit, and provide a reset force when reverse adjustment is needed, to ensure the stability and accuracy of the lifting action.

[0040] After the initial clamping is completed, the tool is used to screw the pin 36 inward into the mounting sleeve 35. The feeding of the pin 36 will push the ejector plate 38, which in turn pushes the sliding block 24 with the second screw 18 and the second worm gear 25 through the ejector rod 39 towards the rotating shaft 5, overcoming the resistance of the ejector spring 40, and finally makes the second worm gear 25 fully mesh with the worm segment 45 on the rotating shaft 5. At this time, the upper plate 4 and the lower plate 3 are relatively locked, and the upper plate 4 system is linked with the power output of the rotating shaft 5, preparing for synchronous lifting;

[0041] Again, the rotating shaft 5 is rotated, and at this time, the rotation of the rotating shaft 5 will drive the upper plate 4 and the lower plate 3 to lift synchronously:

[0042] For the second driving member: the worm segment 45 of the rotating shaft 5 drives the meshed second worm gear 25 and the second screw 18 to rotate, drives the second sliding block 26 to move, and thus pushes the second inclined block I 20. The inclined surface of the second inclined block I 20 interacts with the inclined surface of the second inclined block II 21 fixed on the clamping block 28 to generate downward pressure, drive the second inclined block II 21, the clamping block 28 and the upper plate 4 to move downward. The function of the first spring 31 is to keep the inclined surfaces of the second inclined blocks I and II in close contact, ensuring smooth pressure transmission without gap;

[0043] At the same time, the lower plate 3 also moves synchronously under the action of the first driving member, so that the turning tool firmly clamped between the upper plate 4 and the lower plate 3 is precisely adjusted in lifting. In this process, the operator can first adjust the external lathe mounting plate to move the entire lathe body 1 until the turning tool is close to the workpiece, and then adjust the turning tool to align the turning tool tip with the workpiece axis, completing the final tool setting operation.

[0044] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A rotary lathe frame, comprising a frame body (1), the frame body (1) being rotatably mounted on an external lathe mounting plate, characterized in that: The frame body (1) has a through mounting groove (2) on its side wall. A lower plate (3) for supporting the cutting tool is provided on the lower side wall of the mounting groove (2). An upper plate (4) corresponding to the lower plate (3) is provided on the side wall opposite to the lower plate (3) in the mounting groove (2). A rotating shaft (5) is rotatably provided on the frame body (1). A first driving member for driving the lower plate (3) to move up and down towards the upper plate (4) is provided between the rotating shaft (5) and the lower plate (3). A fixing member for locking the relative position of the upper plate (4) and the lower plate (3) is provided on the frame body (1). A second driving member for driving the upper plate (4) locked by the fixing member to move up and down towards the lower plate (3) is provided between the rotating shaft (5) and the upper plate (4).

2. A rotary lathe frame according to claim 1, characterized in that: The first drive assembly includes a first screw (6), a first slide rod (7), a first inclined block I (8), and a first inclined block II (9). A first cavity (10) is provided inside the frame body (1). The bottom end of the rotating shaft (5) is vertically downward and rotatably inserted into the first cavity (10). The first screw (6) is horizontally rotatably disposed within the first cavity (10). The first slide rod (7) is horizontally fixed within the first cavity (10). A first worm gear (11) is fixedly mounted on the first screw (6). One end of the rotating shaft (5) extending into the first cavity (10) is a worm section (45) that meshes with the first worm gear (11). A first slider (12) is threaded onto the first screw (6). One end of the first slider (12) is slidably mounted on the first slide rod (7). The first inclined block I (8) is fixed on the first slider (12). A first countersunk hole (13) communicating with the first cavity (10) is opened in the mounting groove (2) and below the lower plate (3). A support block (14) is fixed at the bottom of the lower plate (3). The support block (14) slides into the first countersunk hole (13). The first inclined block II (9) is fixed below the support block (14). The inclined surfaces of the first inclined block I (8) and the first inclined block II (9) slide against each other.

3. A rotary lathe frame according to claim 2, characterized in that: A plurality of reset rods (15) are fixed between the support block (14) and the first inclined block II (9). A first clearance groove (16) is provided in the first cavity (10) and at the opening of the first countersunk hole (13). A reset spring (17) is sleeved on each of the reset rods (15). The two ends of the reset springs (17) are fixed to the side walls of the first inclined block II (9) and the first clearance groove (16), respectively.

4. A rotary lathe frame according to claim 2, characterized in that: The second driving component includes a second screw (18), a second slide rod (19), a second inclined block I (20), and a second inclined block II (21). A second cavity (22) is provided inside the frame body (1). The rotating shaft (5) is vertically rotatably inserted into the second cavity (22). A section of the rotating shaft (5) extending into the second cavity (22) is a worm section (45). Sliding grooves (23) are provided on opposite sides of the second cavity (22). Sliding blocks (24) are slidably disposed within each of the two sliding grooves (23). The second screw (18) is horizontally rotatably mounted on one of the sliding blocks (24). A second worm wheel (25) is fixedly mounted on the second screw (18). The fixing component is used to engage the second worm wheel (25) with the worm section (45). The second slide rod (19) is horizontally fixed on another slide block (24). The second screw (18) is threaded with a second slider (26). One end of the second slider (26) is slidably fitted on the second slide rod (19). The second inclined block I (20) is fixed on the second slider (26). The mounting groove (2) and the upper plate (4) are provided with a second countersunk hole (27) communicating with the second cavity (22). The bottom of the lower plate (3) is fixed with a clamping block (28). The clamping block (28) slides into the second countersunk hole (27). The second inclined block II (21) is fixed on the side of the clamping block (28) away from the upper plate (4). The inclined surfaces of the second inclined block I (20) and the second inclined block II (21) slide against each other.

5. A rotary lathe frame according to claim 4, characterized in that: A plurality of clamping rods (29) are fixed between the clamping block (28) and the second inclined block II (21). A second clearance groove (30) is provided in the second cavity (22) and at the opening of the second countersunk hole (27). A first spring (31) is sleeved on each of the clamping rods (29). The two ends of the first springs (31) are respectively fixed to the side walls of the second inclined block II (21) and the second clearance groove (30).

6. A rotary lathe frame according to claim 5, characterized in that: The clamping block (28) is provided with a plurality of clamping grooves, and a plurality of clamping rods (29) slide into the clamping grooves one by one. A second spring (32) is fixedly provided in each clamping groove. The second spring (32) is fixedly connected to the end of the clamping rod (29). A groove (33) is vertically provided on the side wall of each clamping groove. A protrusion (34) is provided at the end of each of the clamping rods (29). Each protrusion (34) is slidably provided in the groove (33).

7. A rotary lathe frame according to claim 4, characterized in that: The fastener includes an internally threaded mounting sleeve (35) and a pin (36). The frame body (1) has a fixing hole (37) communicating with the second cavity (22). The mounting sleeve (35) is fixed in the fixing hole (37). The pin (36) is threaded through the mounting sleeve (35). An ejector plate (38) is slidably provided in the fixing hole (37). The ejector plate (38) and the end of the pin (36) passing through the mounting sleeve (35) abut against each other. A plurality of ejector rods (39) are fixed between the ejector plate (38) and the sliding block (24) provided with the second screw (18). An ejector spring (40) is sleeved on each of the ejector rods (39). The two ends of the ejector spring (40) are respectively fixed to the side wall of the sliding block (24) and the second cavity (22).

8. A rotary lathe frame according to claim 1, characterized in that: The upper plate (4) and the lower plate (3) are each fixed with a clamping plate (41) on opposite sides, and the two clamping plates (41) are each provided with an anti-slip layer (42) on opposite sides.

9. A rotary lathe frame according to claim 7, characterized in that: The top of the rotating shaft (5) is provided with a hexagonal cap (43), and the end of the pin (36) away from the ejector plate (38) is provided with an internal hexagonal groove (44).

10. A method of using a lathe rotary carriage as described in claim 1, characterized in that: Includes the following steps, S1: Install the cutting tool in the mounting slot (2) on the frame body (1) so that the bottom of the cutting tool is supported on the lower plate (3); S2: Rotate the shaft (5) to drive the lower plate (3) to rise and fall, and drive the lower plate (3) and the cutting tool to move towards the upper plate (4) until the top of the cutting tool is fully in contact with and fixed to the upper plate (4); S3: The relative positions of the upper plate (4) and the lower plate (3) are locked by the fastener, and the upper plate (4) can be driven to rise and fall by the rotating shaft (5) and the second drive assembly; S4: Adjust the external lathe mounting plate to move the frame body (1) toward the workpiece, and finally rotate the shaft (5) to make the upper plate (4) and lower plate (3) drive the clamped cutting tool to rise and fall in height, so that the cutting tool tip is aligned with the workpiece axis, and the cutting tool is set.

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