Machine tool for machining small-diameter shell

Abstract

The invention provides a small-diameter shell machining machine tool, and relates to the technical field of machine tools. The single-swing-head numerical control lathe comprises a lathe body, a portal frame, a rotating table, a sliding rod, a single swing head and a vertical driving assembly, and the portal frame is arranged above the lathe body; the rotary table is arranged between the portal frame and the bed body; a sliding hole is formed in the portal frame in the vertical direction, the bottom end of the sliding rod is located above the rotating table and connected with the single swing head, and the top end of the sliding rod upwards penetrates through the sliding hole and abuts against the inner wall of the sliding hole; the vertical driving assembly is arranged on the portal frame, and the vertical driving assembly is in transmission connection with the sliding rod and can drive the sliding rod to move along the sliding hole. The device has the advantages that the sliding rod is not prone to deformation, and the machining precision is high.

Description

Technical Field

[0001] The present application relates to the technical field of machine tools, and in particular to a small-diameter shell processing machine tool. Background Art

[0002] When producing and processing small diameter shells, it is necessary to use an appropriate processing machine tool to perform corner processing on the inner cavity of the shell.

[0003] Existing small-diameter shell processing machine tools are generally gantry vertical machine tools, with connecting rods and small single-swing heads provided on the gantry. The user can first install a connecting rod with a suitable inclination angle on the gantry according to the angle requirement to be processed, and then select a single-swing head of suitable specifications according to the size of the opening on the shell to be processed, and install the single-swing head on the connecting rod, so that the single-swing head can pass through the opening on the shell to be processed and extend into the interior of the shell for corner processing.

[0004] However, since the connecting rod is subjected to relatively large torque during corner processing, the connecting rod is easily deformed, which affects the accuracy of corner processing.

[0005] In view of this, it is necessary to provide a small diameter shell processing machine tool. Summary of the invention

[0006] In order to solve the problem that the connecting rods on the existing small-diameter shell processing machine tools are easily deformed during corner processing, which affects the accuracy of corner processing, the present application provides a small-diameter shell processing machine tool.

[0007] The present application provides a small-diameter shell processing machine tool, which adopts the following technical solution: comprising a bed, a gantry, a rotary table, a slide bar, a single swing head and a vertical drive assembly, wherein the gantry is arranged above the bed; The rotating platform is arranged between the gantry and the bed; A sliding hole is provided on the gantry in the vertical direction, the bottom end of the sliding rod is located above the rotating platform and connected to the single swing head, and the top end of the sliding rod passes through the sliding hole upward and abuts against the inner wall of the sliding hole; The vertical driving assembly is arranged on the gantry, and the vertical driving assembly is transmission-connected with the sliding rod and can drive the sliding rod to move along the sliding hole.

[0008] By adopting the above technical solution, taking a cylindrical shell workpiece as an example, the user can first place the workpiece on a rotating table with the opening of the cylinder facing upwards, and the vertical drive assembly can drive the slide rod to move downward along the slide hole and extend the single swing head into the inner cavity of the workpiece, so that the single swing head can cooperate with the rotating table to perform corner processing on the inner cavity of the workpiece, and the inner wall of the slide hole can support the slide rod in the horizontal direction and share the torque borne by the slide rod during corner processing, so that the slide rod is not easy to deform, ensuring that the slide always has good verticality and stability when moving up and down, so that the processing accuracy of the small-diameter shell processing machine will not be affected.

[0009] Specifically, the gantry comprises a crossbeam, an installation box and a transverse driving unit, the top of the crossbeam is provided with a sliding groove and two connecting rails along its length direction, the sliding groove is located between the two connecting rails, and receiving slide blocks are provided on both side walls of the installation box, each connecting rail corresponds to the receiving slide block on one side wall of the installation box, the installation box is inserted into the sliding groove and is slidably connected with the two connecting rails through the receiving slide block, and the installation box is provided with the sliding hole, the transverse driving unit is transmission-connected with the installation box and can drive the installation box to drive the slide bar to slide along the sliding groove; The vertical drive assembly includes a vertical lead screw and a vertical drive motor. A vertical drive groove is opened on the inner wall of the sliding hole in the vertical direction. The vertical lead screw is arranged in the vertical drive groove in the vertical direction and is rotatably connected to the groove wall of the vertical drive groove. A vertical threaded sleeve matched with the vertical lead screw is provided on the sliding rod. The vertical threaded sleeve is sleeved on the vertical lead screw. The vertical drive motor is transmission-connected to the vertical lead screw and can drive the vertical lead screw to rotate.

[0010] By adopting the above technical solution, the horizontal drive unit can drive the installation box to move with the slide rod along the length direction of the beam, and then drive the slide rod to drive the single swing head close to or away from the inner wall of the workpiece to be processed through the cooperation of the vertical drive motor and the vertical lead screw, so that the inner wall of the workpiece can be processed at a corner.

[0011] Furthermore, the transverse drive unit includes a transverse screw and a transverse drive motor. The transverse screw is arranged at the top of the beam along the length direction of the beam, and both ends of the transverse screw are connected to the beam through bearing seats. The installation box is provided with a transverse threaded sleeve that is compatible with the transverse screw. The transverse threaded sleeve is sleeved on the transverse screw. The transverse drive motor is transmission connected to the transverse screw and can drive the transverse screw to rotate.

[0012] By adopting the above technical solution, the transverse driving motor can drive the transverse lead screw to rotate, so as to drive the mounting box to move along the length direction of the beam through the cooperation between the transverse lead screw and the transverse threaded sleeve.

[0013] Furthermore, two abutment rails are provided on the groove walls on both sides of the sliding groove, and each of the abutment rails is arranged along the length direction of the crossbeam. Abutment sliders are provided on the side walls on both sides of the installation box, and each of the abutment rails corresponds to the abutment slider on one side wall of the installation box. Each of the abutment sliders is slidably connected to the corresponding abutment rail and can abut the installation box between the two abutment rails.

[0014] By adopting the above technical solution, the abutment rail can cooperate with the abutment slider to abut the installation box between the two abutment rails, so that the gantry can limit the installation box in the width direction of the beam, thereby increasing the overall processing stability of the small diameter shell processing machine.

[0015] Furthermore, vertical slide rails are provided on both sides of the rod body of the slide rod, and two limit sliders are relatively arranged on the inner wall of the slide hole. The connecting line of the two limit sliders is parallel to the width direction of the crossbeam. The limit sliders correspond to the vertical slide rails one by one, and each limit slider is slidably connected to the vertical slide rail and can abut the slide rod between the two limit sliders.

[0016] By adopting the above technical solution, the limit slider can cooperate with the vertical slide rail so that the slide rod can always be abutted between the two limit sliders when moving up and down, so that the installation box can limit the slide rod in the width direction of the beam, thereby increasing the overall processing stability of the small diameter shell processing machine.

[0017] Furthermore, the gantry also includes an auxiliary support rod, which includes an outer tube and an inner rod. The outer tube is arranged in a vertical direction and connected to the installation box, the bottom end of the inner rod is inserted into the outer tube and can slide along the inner wall of the outer tube, and the top end of the inner rod is connected to the sliding rod.

[0018] By adopting the above technical solution, the outer cylinder can limit the slide bar by cooperating with the inner rod, so as to share the torque borne by the slide bar, avoid deformation of the slide bar in the horizontal direction, and ensure the overall processing stability of the small diameter shell processing machine tool.

[0019] Furthermore, it also includes a tool setting component, which includes a tool setting instrument and a telescopic part. The tool setting instrument is arranged on the telescopic part. The telescopic part is connected to the column of the gantry and can drive the tool setting instrument to approach or move away from the single swing head.

[0020] By adopting the above technical solution, the telescopic part can drive the tool setter to approach the single swing head, so that the tool setter can measure the tool length of the milling cutter on the single swing head, which is convenient for small diameter shell processing machine tools to process; after the measurement is completed, the telescopic part can drive the tool setter away from the single swing head, so that the tool setter will not hinder the single swing head from processing the workpiece on the rotary table.

[0021] Furthermore, the telescopic part includes a support rail, a mounting slide and a telescopic cylinder. The support rail is arranged on the column of the gantry along the direction from approaching to away from the single swing head. The mounting slide is slidably connected to the support rail. The tool setting instrument is arranged on the mounting slide. The cylinder body of the telescopic cylinder is connected to the gantry. The piston rod of the telescopic cylinder is connected to the mounting slide and can drive the mounting slide to slide along the support rail.

[0022] By adopting the above technical solution, the telescopic cylinder can drive the mounting slide block to slide along the support rail through the piston rod, so that the mounting slide block can drive the tool setting instrument to approach or move away from the single swing head.

[0023] Specifically, it also includes a slag collecting component, which includes a slag guiding hood and two slag collecting boxes. The machine tool is located between the two slag collecting boxes. The slag guiding hood is arranged on the top of the machine tool. A pair of inclined surfaces are formed on the cover body of the slag guiding hood. The inclined surfaces correspond to the slag collecting boxes one by one, and each of the inclined surfaces is inclined upward in a direction from approaching to away from the corresponding slag collecting box.

[0024] By adopting the above technical scheme, the waste slag and debris splashed by the milling cutter on the single swing head during milling can first fall on the slag guide cover, and then slide into the slag collecting box along the inclined surface of the slag guide cover, so that the waste slag can be collected by the slag collecting boxes on both sides of the machine tool, thereby preventing the waste slag from polluting the environment around the small diameter shell processing machine tool.

[0025] Furthermore, each of the slag collecting boxes is provided with a screw conveyor, and a slag taking area is formed between the discharge end of each of the screw conveyors and the inner wall of the slag collecting box.

[0026] By adopting the above technical solution, the screw conveyor can push the debris in the slag collecting box to the slag removing area, so that the user can clean up the debris conveniently.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: 1. It includes a bed, a gantry, a rotating table, a slide bar, a single swing head and a vertical drive assembly. The gantry is arranged above the bed; the rotating table is arranged between the gantry and the bed; a slide hole is opened on the gantry in the vertical direction, the bottom end of the slide bar is located above the rotating table and connected to the single swing head, and the top end of the slide bar passes through the slide hole upward and abuts against the inner wall of the slide hole; the vertical drive assembly is arranged on the gantry, and the vertical drive assembly is connected to the slide bar and can drive the slide bar to move along the slide hole. Taking a cylindrical shell workpiece as an example, the user can first place the workpiece The rotary table is placed with the opening of the cylinder facing upwards, and the vertical driving assembly can drive the slide bar to move downward along the slide hole and extend the single swing head into the inner cavity of the workpiece, so that the single swing head can cooperate with the rotary table to perform corner processing on the inner cavity of the workpiece, and the inner wall of the slide hole can support the slide bar in the horizontal direction and share the torque borne by the slide bar during corner processing, so that the slide bar is not easily deformed, ensuring that the slide ram always has good verticality and stability when moving up and down, so that the processing accuracy of the small diameter shell processing machine tool will not be affected; 2. The gantry includes a crossbeam, an installation box and a transverse driving unit. A sliding groove and two connecting rails are provided on the top of the crossbeam along its length direction. The sliding groove is located between the two connecting rails. A receiving slider is provided on both side walls of the installation box. Each connecting rail corresponds to a receiving slider on one side wall of the installation box. The installation box is inserted into the sliding groove and is slidably connected with the two connecting rails through the receiving slider. A sliding hole is provided on the installation box. The transverse driving unit is transmission-connected with the installation box and can drive the installation box to drive the slide bar to slide along the sliding groove. The vertical driving assembly includes a vertical lead screw and a vertical driving motor. The machine has a vertical driving groove on the inner wall of the sliding hole in the vertical direction, a vertical lead screw is arranged in the vertical driving groove in the vertical direction and is rotatably connected with the groove wall of the vertical driving groove, a vertical threaded sleeve matched with the vertical lead screw is arranged on the sliding rod, and the vertical threaded sleeve is sleeved on the vertical lead screw, a vertical driving motor is transmission-connected with the vertical lead screw and can drive the vertical lead screw to rotate, so that the horizontal driving unit can drive the installation box to move with the sliding rod along the length direction of the crossbeam, and then drive the single swing head to approach or move away from the inner wall of the workpiece to be processed through the sliding rod, so that the inner wall of the workpiece can be processed at a corner. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a three-dimensional diagram of a small-diameter shell processing machine tool of the present application; Figure 2 is along Figure 1 A schematic cross-sectional view taken along the AA direction; Figure 3 yes Figure 2 A schematic enlarged view of region B, showing a vertical threaded sleeve; Figure 4 is a front view of a small diameter shell processing machine tool of the present application; Figure 5 is along Figure 4 A schematic cross-sectional view taken along the CC direction; Figure 6 is along Figure 4 A schematic cross-sectional view taken along the DD direction; Figure 7 yes Figure 4 Schematic enlargement of area E showing the support rails and mounting slides.

[0029] Figure numerals: 1, bed; 2, gantry; 21, crossbeam; 211, connecting rail; 212, abutting rail; 213, limit slider; 22, column; 23, installation box; 231, receiving slider; 232, abutting slider; 24, transverse drive unit; 241, transverse lead screw; 242, transverse drive motor; 25, auxiliary support rod; 251, outer cylinder; 252, inner rod; 3, rotating table; 4, slide rod; 4 1. Vertical slide rail; 42. Vertical threaded sleeve; 5. Single swing head; 6. Vertical drive assembly; 61. Vertical lead screw; 62. Vertical drive motor; 7. Tool setting assembly; 71. Tool setting instrument; 72. Telescopic member; 721. Support rail; 722. Mounting slide block; 723. Telescopic cylinder; 8. Slag collection assembly; 81. Slag guide cover; 811. Inclined surface; 82. Slag collection box; 821. Screw conveyor; 822. Slag removal area. DETAILED DESCRIPTION

[0030] Figure 1 is a stereogram of a small diameter shell processing machine tool of the present application, Figure 2 is along Figure 1 Schematic cross-sectional view taken along the AA direction. Figure 1 and Figure 2A small diameter shell processing machine tool comprises a bed 1, a gantry 2, a rotary table 3, a slag collecting assembly 8, a slide bar 4, a single swing head 5, a vertical drive assembly 6 and a tool setting assembly 7. The gantry 2 is arranged above the bed 1, the rotary table 3 is arranged between the gantry 2 and the bed 1 and can bear the workpiece to be processed, the slag collecting assembly 8 comprises a plurality of slag guiding covers 81 and two slag collecting boxes 82, the machine tool is located between the two slag collecting boxes 82, a plurality of slag guiding covers 81 are arranged on the top of the machine tool, a pair of inclined surfaces 811 are formed on the cover body of each slag guiding cover 81, the inclined surfaces 811 correspond to the slag collecting boxes 82 one by one, and each inclined surface 811 is close to and away from a corresponding slag collecting box 82. The slag collecting box 82 is tilted upward in direction so that the waste slag and debris splashed from the rotary table 3 during milling can first fall on the slag guiding cover 81, and then slide into the slag collecting box 82 along the inclined surface 811 on the slag guiding cover 81, so that the waste slag can be collected by the slag collecting boxes 82 on both sides of the machine tool to prevent the waste slag from polluting the environment around the small-diameter shell processing machine tool; each slag collecting box 82 is provided with a screw conveyor 821, and a slag removal area 822 is formed between the discharge end of each screw conveyor 821 and the inner wall of the slag collecting box 82, so that the debris in the slag collecting box 82 can be pushed to the slag removal area 822 by the screw conveyor 821, so that the user can clean up the debris conveniently.

[0031] Figure 3 yes Figure 2 A schematic enlarged view of the area B in the figure shows the vertical threaded sleeve, Figure 4 1 is a front view of a small diameter shell processing machine tool of the present application. Figure 1 , Figure 3 and Figure 4The gantry 2 includes a pair of columns 22, a crossbeam 21, a mounting box 23 and a horizontal driving unit 24, on which sliding holes are opened in the vertical direction. A pair of columns 22 are set above the bed body 1 at intervals, and the crossbeam 21 is set between the two columns 22 and spans above the rotating table 3. A sliding groove and two connecting rails 211 are provided on the top of the crossbeam 21 along its own length direction. The sliding groove is located between the two connecting rails 211, and the cross section of each connecting rail 211 is square. Three receiving sliders 231 are arranged on the side walls of both sides of the mounting box 23, and each connecting rail 211 corresponds to the receiving slider 231 on one side wall of the mounting box 23. The cross section of each connecting rail 211 is square, and a sliding groove matching the connecting rail 211 is opened on the receiving slider 231, which can be buckled on the connecting rail 211 and connected with the connecting rail 2 The top wall and side wall of 11 are abutted so that the installation box 23 can be inserted into the sliding groove and slidably connected with the two connecting rails 211 through the receiving slider 231; two abutting rails 212 are provided on the groove walls on both sides of the sliding groove, and each abutting rail 212 is arranged along the length direction of the crossbeam 21, and two abutting sliders 232 are provided on the side walls of the installation box 23 on both sides, and each abutting rail 212 corresponds to the abutting slider 232 on one side wall of the installation box 23, and the cross-section of each abutting rail 212 is square, and a sliding groove adapted to the abutting rail 212 is opened on the abutting slider 232, which can be buckled on the abutting rail 212 and abut against the top wall and side wall of the abutting rail 212, and each receiving slider 231 is slidably connected with the corresponding abutting rail 212 and can abut the installation box 23 between the two abutting rails 212.

[0032] See also Figure 2 and Figure 3 The transverse driving unit 24 includes a transverse lead screw 241 and a transverse driving motor 242. The transverse lead screw 241 is arranged at the top of the cross beam 21 along the length direction of the cross beam 21, and the two ends of the transverse lead screw are connected to the cross beam 21 through bearing seats. A transverse threaded sleeve adapted to the transverse lead screw 241 is provided on the installation box 23, and the transverse threaded sleeve is sleeved on the transverse lead screw 241. The transverse driving motor 242 is transmission-connected to the transverse lead screw 241 and can drive the transverse lead screw 241 to rotate, so as to be able to drive the installation box 23 to move along the length direction of the cross beam 21 through the cooperation between the transverse lead screw 241 and the transverse threaded sleeve.

[0033] See also Figure 1 and Figure 2A sliding hole is opened in the middle of the installation box 23 along the vertical direction, the bottom of the sliding rod 4 is connected to the single swing head 5, and the top of the sliding rod 4 passes through the sliding hole and is transmission-connected to the vertical drive assembly 6. The vertical drive assembly 6 includes a vertical lead screw 61 and a vertical drive motor 62. A vertical drive groove is opened on the inner wall of the sliding hole along the vertical direction. The vertical lead screw 61 is arranged in the vertical drive groove along the vertical direction and is rotationally connected to the groove wall of the vertical drive groove. A vertical threaded sleeve 42 adapted to the vertical lead screw 61 is provided on the sliding rod 4, and the vertical threaded sleeve 42 is sleeved on the vertical lead screw 61. The vertical drive motor 62 is transmission-connected to the vertical lead screw 61 and can drive the vertical lead screw 61 to rotate.

[0034] Figure 5 is along Figure 4 Schematic cross-sectional view taken along the CC direction. Figure 2 and Figure 5 The cross section of the slide bar 4 is a regular octagon. Vertical slide rails 41 are provided on opposite sides of the rod body of the slide bar 4. Two limit sliders 213 are relatively arranged on the inner wall of the slide hole. The connecting line of the two limit sliders 213 is parallel to the width direction of the crossbeam 21. The limit sliders 213 correspond to the vertical slide rails 41 one by one. The cross section of each vertical slide rail 41 is square. The limit slider 213 is provided with a slide groove adapted to the vertical slide rail 41. The slide groove can be buckled on the vertical slide rail 41 and abut against the top wall and side wall of the vertical slide rail 41, so as to limit the slide bar 4 in the horizontal direction, so that the slide bar 4 can always be abutted between the two limit sliders 213 when moving up and down, thereby increasing the overall processing stability of the small-diameter shell processing machine tool.

[0035] Through the above-mentioned arrangement, taking a cylindrical shell workpiece as an example, the user can first place the workpiece on the rotating table 3 with the opening of the cylinder facing upwards, and the vertical drive component 6 can drive the slide bar 4 to move downward along the slide hole and extend the single swing head 5 into the inner cavity of the workpiece, so that the single swing head 5 can cooperate with the rotating table 3 to perform corner processing on the inner cavity of the workpiece; the limiting slider 213 on the inner wall of the slide hole can support the slide bar 4 in the horizontal direction and share the torque borne by the slide bar 4 during corner processing, and the abutment rail 212 and the connecting rail 211 on the gantry 2 can form a double-layer track structure to share the force transmitted to the installation box 23 by the slide bar 4, so that the slide bar 4 is not easy to deform, and ensure that the slide always has good verticality and stability when moving up and down, so that the processing accuracy of the small-diameter shell processing machine tool will not be affected, and the overall processing stability of the small-diameter shell processing machine tool is increased.

[0036] Specifically, a pair of auxiliary support rods 25 can be arranged on the gantry 2, and the pair of auxiliary support rods 25 are diagonally arranged around the sliding rod 4. Each auxiliary support rod 25 includes an outer tube 251 and an inner rod 252. The outer tube 251 is arranged in the vertical direction and connected to the installation box 23. The bottom end of the inner rod 252 is inserted into the outer tube 251 and can slide along the inner wall of the outer tube 251. The top end of the inner rod 252 is connected to the sliding rod 4, so that the sliding rod 4 can be limited by the cooperation of the outer tube 251 and the inner rod 252, so as to share the torque borne by the sliding rod 4, avoid deformation of the sliding rod 4 in the horizontal direction, and ensure the stability of the overall processing of the small-diameter shell processing machine.

[0037] Figure 6 is along Figure 4 A schematic cross-sectional view taken along the DD direction, Figure 7 yes Figure 4 Schematic enlargement of area E showing the support rails and mounting slides. Figure 6 and Figure 7 The tool setting assembly 7 includes a tool setting instrument 71 and a telescopic member 72. The telescopic member 72 includes a support rail 721, a mounting slide 722 and a telescopic cylinder 723. The support rail 721 is arranged on the column 22 of the gantry 2 along the direction from close to far away from the single swing head 5. The mounting slide 722 is slidably connected to the support rail 721. The tool setting instrument 71 is arranged on the mounting slide 722. The cylinder body of the telescopic cylinder 723 is connected to the gantry 2. The piston rod of the telescopic cylinder 723 is connected to the mounting slide 722 and can drive the mounting slide 722. The sliding block 722 slides along the supporting rail 721, so that the telescopic cylinder 723 can drive the tool setting instrument 71 to approach the single swing head 5 by driving the piston rod to extend, so that the tool setting instrument 71 can measure the tool length of the milling cutter on the single swing head 5, which is convenient for the small diameter shell processing machine tool to process; after the measurement is completed, the telescopic cylinder 723 can drive the tool setting instrument 71 to move away from the single swing head 5 by driving the piston rod to shorten, so that the tool setting instrument 71 will not hinder the single swing head 5 from processing the workpiece on the rotating table 3.

[0038] The above-mentioned single swing head 5 can be a milling tool used in a single-turntable single swing head 5 machine tool in the prior art. The single swing head 5 can cooperate with the turntable 3 to perform five-axis machining on the workpiece, and the above-mentioned tool setting instrument 71 is also prior art, which will not be repeated here.

[0039] The implementation principle of a small diameter shell processing machine tool described in this application is: The user can first place the workpiece on the rotating table 3 with the opening of the cylinder facing upwards. The vertical driving component 6 can drive the slide bar 4 to move downward along the slide hole and extend the single swing head 5 into the inner cavity of the workpiece, so that the single swing head 5 can cooperate with the rotating table 3 to perform corner processing on the inner cavity of the workpiece; the limiting slider 213 on the inner wall of the slide hole can support the slide bar 4 in the horizontal direction and share the torque borne by the slide bar 4 during corner processing. The abutment rail 212 and the connecting rail 211 on the gantry 2 can form a double-layer track structure to share the force transmitted to the installation box 23 by the slide bar 4, so that the slide bar 4 is not easy to deform, ensuring that the slide always has good verticality and stability when moving up and down, so that the processing accuracy of the small-diameter shell processing machine tool will not be affected, and the overall processing stability of the small-diameter shell processing machine tool is increased.

[0040] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A small diameter shell processing machine tool, characterized in that: It comprises a bed (1), a gantry (2), a rotating platform (3), a sliding rod (4), a single swing head (5) and a vertical drive assembly (6), wherein the gantry (2) is arranged above the bed (1); The rotating platform (3) is arranged between the gantry (2) and the bed (1); A sliding hole is provided on the gantry (2) in the vertical direction, the bottom end of the sliding rod (4) is located above the rotating platform (3) and connected to the single swing head (5), and the top end of the sliding rod (4) passes through the sliding hole upward and abuts against the inner wall of the sliding hole; The vertical drive component (6) is arranged on the gantry (2), and the vertical drive component (6) is transmission-connected to the slide bar (4) and can drive the slide bar (4) to move along the slide hole.

2. A small diameter shell processing machine tool according to claim 1, characterized in that: The gantry (2) comprises a crossbeam (21), an installation box (23) and a transverse driving unit (24); a sliding groove and two connecting rails (211) are provided at the top of the crossbeam (21) along its length direction; the sliding groove is located between the two connecting rails (211); receiving slide blocks (231) are provided on both side walls of the installation box (23); each connecting rail (211) corresponds to the receiving slide block (231) on one side wall of the installation box (23); the installation box (23) is inserted into the sliding groove and is slidably connected to the two connecting rails (211) through the receiving slide block (231); the installation box (23) is provided with the sliding hole; the transverse driving unit (24) is transmission-connected to the installation box (23) and can drive the installation box (23) to drive the slide bar (4) to slide along the sliding groove; The vertical drive assembly (6) comprises a vertical lead screw (61) and a vertical drive motor (62); a vertical drive groove is provided on the inner wall of the slide hole in the vertical direction; the vertical lead screw (61) is arranged in the vertical drive groove in the vertical direction and is rotatably connected to the groove wall of the vertical drive groove; a vertical threaded sleeve (42) adapted to the vertical lead screw (61) is provided on the slide bar (4); the vertical threaded sleeve (42) is sleeved on the vertical lead screw (61); the vertical drive motor (62) is transmission-connected to the vertical lead screw (61) and can drive the vertical lead screw (61) to rotate.

3. A small diameter shell processing machine tool according to claim 2, characterized in that: The transverse drive unit (24) comprises a transverse lead screw (241) and a transverse drive motor (242); the transverse lead screw (241) is arranged at the top of the transverse beam (21) along the length direction of the transverse beam (21), and both ends of the transverse lead screw are connected to the transverse beam (21) through a bearing seat; a transverse threaded sleeve matched with the transverse lead screw (241) is provided on the installation box (23); the transverse threaded sleeve is sleeved on the transverse lead screw (241); the transverse drive motor (242) is transmission-connected to the transverse lead screw (241) and can drive the transverse lead screw (241) to rotate.

4. A small diameter shell processing machine tool according to claim 2, characterized in that: Two abutment rails (212) are provided on both side walls of the sliding groove, and each of the abutment rails (212) is arranged along the length direction of the crossbeam (21). Abutment sliders (232) are provided on both side walls of the installation box (23), and each of the abutment rails (212) corresponds to the abutment slider (232) on one side wall of the installation box (23). Each of the abutment sliders (232) is slidably connected to the corresponding abutment rail (212) and can abut the installation box (23) between the two abutment rails (212).

5. The small diameter shell processing machine tool according to claim 2, characterized in that: Vertical slide rails (41) are provided on both sides of the rod body of the slide rod (4), and two limit sliders (213) are arranged opposite to each other on the inner wall of the slide hole. The connection line of the two limit sliders (213) is parallel to the width direction of the crossbeam (21). The limit sliders (213) correspond to the vertical slide rails (41) one by one. Each limit slider (213) is slidably connected to the vertical slide rail (41) and can make the slide rod (4) abut against the two limit sliders (213).

6. The small diameter shell processing machine tool according to claim 2, characterized in that: The gantry (2) further comprises an auxiliary support rod (25), wherein the auxiliary support rod (25) comprises an outer tube (251) and an inner rod (252), wherein the outer tube (251) is arranged in a vertical direction and is connected to the installation box (23), the bottom end of the inner rod (252) is inserted into the outer tube (251) and can slide along the inner wall of the outer tube (251), and the top end of the inner rod (252) is connected to the sliding rod (4).

7. The small diameter shell processing machine tool according to claim 2, characterized in that: The invention also comprises a tool setting assembly (7), wherein the tool setting assembly (7) comprises a tool setting instrument (71) and a telescopic member (72), wherein the tool setting instrument (71) is arranged on the telescopic member (72), and the telescopic member (72) is connected to the column (22) of the gantry (2) and can drive the tool setting instrument (71) to move closer to or away from the single swing head (5).

8. The small diameter shell processing machine tool according to claim 7, characterized in that: The telescopic member (72) comprises a support rail (721), a mounting slide block (722) and a telescopic cylinder (723); the support rail (721) is arranged on a column (22) of the gantry (2) in a direction from close to to far away from the single swing head (5); the mounting slide block (722) is slidably connected to the support rail (721); the tool setting instrument (71) is arranged on the mounting slide block (722); the cylinder body of the telescopic cylinder (723) is connected to the gantry (2); the piston rod of the telescopic cylinder (723) is connected to the mounting slide block (722) and can drive the mounting slide block (722) to slide along the support rail (721).

9. The small diameter shell processing machine tool according to claim 1, characterized in that: The machine tool further comprises a slag collecting assembly (8), wherein the slag collecting assembly (8) comprises a slag guiding cover (81) and two slag collecting boxes (82), the machine tool is located between the two slag collecting boxes (82), the slag guiding cover (81) is arranged on the top of the machine tool, a pair of inclined surfaces (811) are formed on the cover body of the slag guiding cover (81), the inclined surfaces (811) correspond to the slag collecting boxes (82) one by one, and each of the inclined surfaces (811) is inclined upward in a direction from approaching to moving away from the corresponding slag collecting box (82).

10. The small diameter shell processing machine tool according to claim 9, characterized in that: Each of the slag collecting boxes (82) is provided with a screw conveyor (821), and a slag taking area (822) is formed between the discharge end of each of the screw conveyors (821) and the inner wall of the slag collecting box (82).

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