Numerical control rotary vertical reaming and honing machine integrating multiple stations

Abstract

The invention provides a multi-station integrated numerical control rotary vertical reaming and honing machine which comprises a base, a stand column fixedly installed on the base, a shell fixedly installed on the outer sides of the base and the stand column, a front door, a side door and a PLC control cabinet arranged on the shell, the front door and the side door are hinged to the shell, and a fixed table is fixedly installed on the inner side of the base. According to the multi-station integrated numerical control rotary vertical reaming and honing machine, each main shaft is independently provided with a second servo motor, so that each main shaft can be independently driven under the driving of the corresponding second servo motor, and corresponding reaming tools and honing tools can be installed in each floating chuck according to the machining sequence; by the adoption of the structure, the numerical control rotary vertical reaming and honing machine can achieve reaming and honing of the parts on a single machine tool, the machine tool is compact in structure, simultaneous machining of multiple parts and multiple shafts can be achieved, the working procedures are concentrated, the machining efficiency is high, and the occupied area is small.

Description

Technical Field

[0001] The invention relates to the technical field of vertical reaming and honing machines, and in particular discloses a numerically controlled rotary vertical reaming and honing machine integrating multiple workstations. Background Art

[0002] Precision holes of parts such as gears, valve bodies, superchargers, oil pump nozzles, hydraulic parts, and mold guide sleeves need to be processed through multiple processes such as reaming and honing to obtain high dimensional accuracy, geometric accuracy, and surface roughness. Existing processing machine tools are mostly single-process processing or multi-axis worktable linear movable structures. The existing processes are scattered, and multiple machine tools are required to meet the processing requirements. They occupy a large area and have low processing efficiency. Summary of the invention

[0003] In view of the above-mentioned defects or deficiencies in the prior art, the present application aims to provide a CNC rotary vertical hinge-honing machine integrating multiple workstations, comprising a base, a column fixedly mounted on the base, a shell fixedly mounted on the outside of the base and the column, a front door and a side door hinged on the shell, and a PLC control cabinet arranged on the shell, wherein a fixed table is fixedly mounted on the inner side of the base, a supporting mechanism is fixedly mounted on the top of the fixed table, a cam divider is fixedly mounted on the bottom of the fixed table, a rotary table located above the supporting mechanism and provided with ten workstations is fixedly mounted on the output shaft of the cam divider, a first servo motor that is transmission-connected to the output shaft of the cam divider is fixedly mounted on the outer side of the cam divider, the first servo motor is electrically connected to the PLC control cabinet, a floating fixture is fixedly mounted on the top of the rotary table for each workstation, a slide rail is fixedly mounted on the outer side of the shell, a slide plate is slidably connected to the outer side of the slide rail, a mounting frame is provided on one side of the slide plate, and a connecting plate is fixedly mounted on the other side of the slide plate; The internal fixed sleeve of the mounting frame is provided with eight bearing sleeves, and the eight bearing sleeves are correspondingly distributed above the eight workstations of the rotary worktable. The top of the bearing sleeve is fixedly provided with a second servo motor electrically connected to the PLC control cabinet through a connecting frame. The output shaft of the second servo motor is fixedly provided with a main shaft rotatably connected to the inside of the bearing sleeve through a shaft sleeve. The outer fixed sleeve of the bottom end of the main shaft is provided with a floating chuck. The outer side of the slide plate is fixedly provided with a feed mechanism fixedly provided on a column. The outer side of the column is fixedly provided with a nitrogen balancing mechanism fixedly provided on a connecting plate.

[0004] Preferably, the support mechanism comprises a support frame fixedly mounted on the top of the fixed table and distributed equidistantly in a ring shape, a limit block is arranged on the top of the support frame, and a support ring located between the support frame and the rotary worktable is clamped on the inner side of the limit block.

[0005] Preferably, the feeding mechanism includes a first support and a second support fixedly mounted on a column, the first support and the second support are internally connected with a lead screw for common rotation, the outer side of the lead screw is threadedly transmitted with a third support fixedly mounted on a slide, and the top end of the lead screw is fixedly sleeved with a third servo motor fixedly mounted on the top of the first support through a shaft sleeve, and the third servo motor is electrically connected to a PLC control cabinet.

[0006] Preferably, the nitrogen balancing mechanism includes a fixing frame and a nitrogen tank fixedly mounted on the column and a fixing plate fixedly sleeved inside the bottom of the connecting plate, the fixing frame is fixedly sleeved with a cylinder inside, and the outer thread of the bottom end of the cylinder is sleeved with a floating joint threadedly sleeved on the outer side of the top end of the fixing plate.

[0007] Compared with the prior art, the present invention has the following beneficial effects: 1. The CNC rotary vertical reaming and honing machine with multiple stations is equipped with a second servo motor for each spindle, so that each spindle can be driven separately under the drive of the second servo motor, and the corresponding reaming tool and honing tool can be installed inside each floating chuck according to the processing sequence, so that multiple parts installed on the rotary table can be processed synchronously. With this structure, the CNC rotary vertical reaming and honing machine can realize the reaming and honing of parts on a single machine tool. The machine tool has a compact structure, can realize multi-part and multi-axis processing at the same time, has centralized processes, high processing efficiency and small footprint.

[0008] 2. This multi-station CNC rotary vertical reaming and honing machine uses servo motors to drive the spindle and the lead screw, so that the second servo motor and the third servo motor can accurately adjust the speed of the spindle and the lead screw under the control of the PLC control cabinet, and the cylinder can balance the weight of the vertical moving parts on the slide, reduce the feed screw load, and improve the smoothness of the feed movement. The spindle speed and feed speed can be set according to the part material and process requirements to realize the digital and automated processing of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a partial schematic diagram of the structure of the present invention; Figure 3 A schematic diagram of the rotary table driving structure of the present invention; Figure 4 is a schematic diagram of the support mechanism of the present invention; Figure 5is a schematic diagram of the feeding mechanism of the present invention; Figure 6 It is an overall schematic diagram of the structure of the present invention.

[0010] In the figure: 1. base; 2. column; 3. shell; 4. front door; 5. side door; 6. PLC control cabinet; 7. fixed table; 8. support mechanism; 81. support frame; 82. limit block; 83. support ring; 9. cam divider; 10. rotary table; 11. first servo motor; 12. floating fixture; 13. slide rail; 14. slide plate; 15. mounting frame; 16. connecting plate; 17. bearing sleeve; 18. connecting frame; 19. second servo motor; 20. spindle; 21. floating chuck; 22. feed mechanism; 221. first support; 222. second support; 223. lead screw; 224. third support; 225. third servo motor; 23. nitrogen balance mechanism; 231. fixed frame; 232. nitrogen tank; 233. fixed plate; 234. cylinder; 235. floating joint. DETAILED DESCRIPTION

[0011] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant inventions, rather than to limit the inventions. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0012] The accompanying drawings in the embodiments of the present invention: different types of section lines in the drawings are not marked according to national standards, nor do they impose requirements on the materials of the components. Instead, they are used to distinguish the cross-sectional views of the components in the drawings.

[0013] See also Figure 1-6A CNC rotary vertical hinge-honing machine with multiple workstations includes a base 1, a column 2 fixedly mounted on the base 1, a shell 3 fixedly mounted on the outside of the base 1 and the column 2, a front door 4 and a side door 5 hinged on the shell 3, and a PLC control cabinet 6 arranged on the shell 3. A fixed table 7 is fixedly mounted on the inner side of the base 1, a supporting mechanism 8 is fixedly mounted on the top of the fixed table 7, a cam divider 9 is fixedly mounted on the bottom of the fixed table 7, a rotary table 10 located above the supporting mechanism 8 and provided with ten workstations is fixedly mounted on the output shaft of the cam divider 9, and a first rotating table 10 which is transmission-connected to the output shaft of the cam divider 9 is fixedly mounted on the outer side of the cam divider 9. The servo motor 11, through the cam divider 9, enables the rotary table 10 to rotate intermittently according to the set ten stations under the drive of the first servo motor 11, so as to switch the processing stations of the parts. The first servo motor 11 is electrically connected to the PLC control cabinet 6. A floating clamp 12 is fixedly installed on the top of the rotary table 10 for each station. The floating clamp 12 can clamp and fix the cylindrical parts to be processed. A slide rail 13 is fixedly installed on the outer side of the shell 3. A slide plate 14 is slidably connected to the outer side of the slide rail 13. A mounting frame 15 is provided on one side of the slide plate 14, and a connecting plate 16 is fixedly installed on the other side of the slide plate 14. The mounting frame 15 has eight bearing sleeves 17 fixedly mounted inside, and the eight bearing sleeves 17 are correspondingly distributed above the eight workstations of the rotary table 10. The remaining two workstations of the rotary table 10 can load and unload parts respectively. A second servo motor 19 electrically connected to the PLC control cabinet 6 is fixedly mounted on the top of the bearing sleeve 17 through a connecting frame 18. The output shaft of the second servo motor 19 is fixedly sleeved with a spindle 20 rotatably connected to the inside of the bearing sleeve 17 through a sleeve. The drive of the second servo motor 19 can drive each spindle 20 to rotate individually and adjust the speed of each spindle 20 individually. A floating chuck 21 is fixedly mounted on the outer side of the bottom end of the spindle 20. The corresponding reaming and honing tools can be installed on the spindle 20 through the floating chuck 21. A feed mechanism 22 fixedly mounted on the column 2 is fixedly mounted on the outer side of the slide plate 14, and a nitrogen balance mechanism 23 fixedly mounted on the outer side of the column 2 is fixedly mounted on the connecting plate 16.

[0014] Among them, the supporting mechanism 8 includes a supporting frame 81 which is fixedly installed on the top of the fixed table 7 and is equidistantly distributed in a ring shape. A limiting block 82 is arranged on the top of the supporting frame 81. The inner side of the limiting block 82 is clamped with a supporting ring 83 located between the supporting frame 81 and the rotary table 10. The rotary table 10 can be limitedly supported by the cooperation of the supporting frame 81, the limiting block 82 and the supporting ring 83, so that the floating fixture 12 can be stably supported axially and radially through the cooperation of the supporting ring 83 and the rotary table 10 during the processing of the parts, ensuring that the parts clamped in the floating fixture 12 are not easily offset during the processing.

[0015] Among them, the feeding mechanism 22 includes a first support 221 and a second support 222 fixedly mounted on the column 2, and the first support 221 and the second support 222 are internally connected with a screw 223 for common rotation, and the outer thread of the screw 223 is transmitted with a third support 224 fixedly mounted on the slide 14, and the top of the screw 223 is fixedly sleeved with a third servo motor 225 fixedly mounted on the top of the first support 221 through a shaft sleeve, and the third servo motor 225 is electrically connected to the PLC control cabinet 6. The drive of the third servo motor 225 can drive the screw 223 to rotate and drive the spindle 20 installed on the mounting frame 15 to rise and fall synchronously through the slide 14, thereby synchronously controlling the axial feed amount of all tools installed inside the floating chuck 21.

[0016] Among them, the nitrogen balancing mechanism 23 includes a fixing frame 231 and a nitrogen tank 232 fixedly installed on the column 2, and a fixing plate 233 fixedly mounted inside the bottom of the connecting plate 16. The fixing frame 231 is fixedly mounted inside with a cylinder 234, and the outer thread of the bottom end of the cylinder 234 is threadedly mounted with a floating joint 235 threadedly mounted on the outer side of the top end of the fixing plate 233. The floating joint 235 can compensate for the axial offset of the fixing plate 233 and the cylinder 234 while ensuring that the weight of the vertical moving parts can be effectively balanced through the cylinder 234.

[0017] When the CNC rotary vertical reaming and honing machine is working, the part to be processed is clamped and fixed by the floating fixture 12, and the first servo motor 11 is started. The rotary table 10 is driven by the first servo motor 11 to rotate around its own axis, and then the position of the part clamped inside the floating fixture 12 is switched, and the part to be processed is rotated to the reaming processing station, and the second servo motor 19 and the third servo motor 225 are started. The spindle 20 is driven by the second servo motor 19 to rotate, and the tool is driven to rotate by the floating chuck 21. The spindle 20 installed on the slide 14 is driven by the third servo motor 225 to move downward with the cooperation of the lead screw 223 and the third support 224. When the tool is released from the part to be processed, it is first reamed. After the reaming is completed, the third servo motor 225 is started in the reverse direction to drive the spindle 20 to move upward and remove the tool from the inside of the part. The first servo motor 11 is started to drive the rotary table 10 to continue rotating to switch the workstation of the part, and the part is rotated to the honing processing station. The third servo motor 225 is started to drive the honing tool on the spindle 20 to move downward, and the part is honed by the rotation of the honing tool. When the honing of the part is completed, the third servo motor 225 is started in reverse to drive the spindle 20 to reset, and the first servo motor 11 is started again to drive the rotary table 10 to rotate, and the processed part is rotated to the unloading station, and finally the processed part is taken out from the inside of the floating fixture 12. During the whole process, the rotary table 10 switches the workstation every time it rotates, and loading can be carried out inside the floating fixture 12 located at the loading station, and the parts to be processed are installed, so that multiple parts to be processed can be processed at the same time. The content not described in detail in this description belongs to the existing technology known to professional and technical personnel in this field.

[0018] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0019] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A CNC rotary vertical hinge-honing machine with multiple working stations, comprising a base (1), a column (2) fixedly mounted on the base (1), a housing (3) fixedly mounted on the outside of the base (1) and the column (2), a front door (4) and a side door (5) hinged on the housing (3), and a PLC control cabinet (6) arranged on the housing (3), characterized in that: A fixed table (7) is fixedly mounted on the inner side of the base (1), a support mechanism (8) is fixedly mounted on the top of the fixed table (7), a cam divider (9) is fixedly mounted on the bottom of the fixed table (7), a rotary table (10) located above the support mechanism (8) and provided with ten workstations is fixedly mounted on the output shaft of the cam divider (9), a first servo motor (11) which is transmission-connected to the output shaft of the cam divider (9) is fixedly mounted on the outer side of the cam divider (9), the first servo motor (11) is electrically connected to the PLC control cabinet (6), a floating fixture (12) is fixedly mounted on the top of the rotary table (10) for each workstation, a slide rail (13) is fixedly mounted on the outer side of the housing (3), a slide plate (14) is slidably connected to the outer side of the slide rail (13), a mounting frame (15) is provided on one side of the slide plate (14), and a connecting plate (16) is fixedly mounted on the other side of the slide plate (14); The mounting frame (15) is internally fixedly sleeved with eight bearing sleeves (17), and the eight bearing sleeves (17) are correspondingly distributed above the eight workstations of the rotary table (10); a second servo motor (19) electrically connected to the PLC control cabinet (6) is fixedly mounted on the top of the bearing sleeve (17) through a connecting frame (18); an output shaft of the second servo motor (19) is fixedly sleeved with a main shaft (20) rotatably connected to the inside of the bearing sleeve (17) through a shaft sleeve; a floating chuck (21) is fixedly sleeved on the outside of the bottom end of the main shaft (20); a feed mechanism (22) fixedly mounted on the column (2) is fixedly mounted on the outside of the slide plate (14); and a nitrogen balance mechanism (23) fixedly mounted on the outside of the column (2) is fixedly mounted on the connection plate (16).

2. The CNC rotary vertical reaming and honing machine with multiple working stations as claimed in claim 1 is characterized in that: The support mechanism (8) comprises a support frame (81) fixedly mounted on the top of the fixed platform (7) and distributed in an annular shape and at equal intervals, a limit block (82) being arranged on the top of the support frame (81), and a support ring (83) located between the support frame (81) and the rotary worktable (10) being clamped on the inner side of the limit block (82).

3. The CNC rotary vertical reaming and honing machine with multiple working stations as claimed in claim 1 is characterized in that: The feeding mechanism (22) comprises a first support (221) and a second support (222) fixedly mounted on the column (2); the first support (221) and the second support (222) are internally connected to a screw (223) for common rotation; the outer side of the screw (223) is threadedly driven to have a third support (224) fixedly mounted on the slide plate (14); and the top end of the screw (223) is fixedly sleeved with a third servo motor (225) fixedly mounted on the top of the first support (221) via a shaft sleeve; the third servo motor (225) is electrically connected to the PLC control cabinet (6).

4. The CNC rotary vertical reaming and honing machine with multiple working stations as claimed in claim 1 is characterized in that: The nitrogen balancing mechanism (23) comprises a fixing frame (231) fixedly mounted on the column (2), a nitrogen tank (232), and a fixing plate (233) fixedly sleeved inside the bottom of the connecting plate (16); a cylinder (234) is fixedly sleeved inside the fixing frame (231); and a floating joint (235) is threadedly sleeved on the outside of the top of the fixing plate (233) on the outer side of the bottom end of the cylinder (234).

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