A CNC horizontal milling and boring machine indexing work turntable

Abstract

The present invention relates to the field of milling and boring machines, and in particular to a numerically controlled horizontal milling and boring machine indexing work turntable. It comprises a fixed seat, a movable frame, an indexing work turntable assembly and a cleaning and cooling assembly. The fixed seat is located on the milling and boring machine bed; the movable frame is rotatably arranged at the front end of the fixed seat; the indexing work turntable assemblies are respectively located on both sides of the rotating point of the movable frame, and the indexing work turntable of each group of indexing work turntable assemblies can rotate 360 ​​degrees and can translate at the same time; the cleaning and cooling assembly is arranged throughout the rotating point of the movable frame. The present invention realizes multi-directional precise indexing and rotation of the workpiece, making its processing more efficient and flexible, and at the same time, the cooling and cleaning effects are obvious, thereby improving the practicality of the numerically controlled horizontal milling and boring machine.

Description

Technical Field

[0001] The invention relates to the field of milling and boring machines, in particular to a numerically controlled horizontal milling and boring machine indexing work turntable. Background Art

[0002] The indexing worktable is also called the indexing worktable or indexing plate. It is one of the important accessories of CNC horizontal milling and boring machines. The indexing worktable is mainly composed of a worm gear structure, a worktable base, a slide, a worktable and an indexing mechanism. It can realize circular rotation to achieve the purpose of indexing or equal division.

[0003] The Chinese patent document with authorization announcement number CN217701509U relates to a dividing device for milling spline shafts, which includes a workbench, a dividing block, a dividing disc and a dividing rod. The workbench is provided with a top mechanism, a deburring mechanism and a milling mechanism. The workbench is provided with a drive motor. The output shaft of the drive motor is fixedly connected to a three-jaw chuck. The dividing disc is arranged between the drive motor and the three-jaw chuck and is coaxially fixedly connected to the output shaft of the drive motor. A plurality of dividing holes are evenly opened in the circumference of the dividing disc. The dividing rod is inserted into the dividing hole and is detachably connected to the dividing disc. The dividing block is fixed on the workbench and is located on one side of the dividing disc.

[0004] The indexing work turntable in the prior art has the following shortcomings: 1. After the workpiece is positioned, the position cannot be changed flexibly, and the angle cannot be adjusted, resulting in a limited processing range and failing to meet the processing requirements of CNC horizontal milling and boring machines. 2. The processing method is single, and the number of workpieces that can be processed at a time is small, requiring workers to repeatedly stop the machine to load and unload the workpiece, reducing the efficiency of workpiece processing. Summary of the invention

[0005] In view of the problems existing in the background technology, a CNC horizontal milling and boring machine indexing turntable is proposed, which can realize multi-directional precise indexing and rotation of the workpiece, making the processing more efficient and flexible, and at the same time has obvious cooling and cleaning effects, thereby improving the practicality of the CNC horizontal milling and boring machine.

[0006] The present invention proposes a CNC horizontal milling and boring machine indexing turntable, which includes a fixed seat, a movable frame, an indexing turntable assembly, and a cleaning and cooling assembly. The fixed seat is located on the milling and boring machine bed; the movable frame is rotatably arranged at the front end of the fixed seat; the indexing turntable assemblies are arranged in pairs at the front end of the movable frame, and are respectively located on both sides of the rotating point of the movable frame, and the indexing turntable of each group of indexing turntable assemblies can rotate 360 ​​degrees and can translate at the same time; the cleaning and cooling assembly is arranged through the rotating point of the movable frame, connected to the fixed seat, and the cleaning and cooling end faces upward. During operation, the indexing turntable assembly is rotated to switch different indexing turntables to the upper processing station, and the position and angle of the workpiece are adjusted by the 360-degree rotation and translation of the indexing turntable; the cleaning and cooling assembly uses an upward water spraying method to clean and cool the workpiece.

[0007] Preferably, the indexing work turntable assembly includes a base plate slidably set on a movable frame; mounting frames are set on both sides of the base plate; a rotating member is set on the mounting frame; the indexing work turntable adjusts the angle through the rotating member; a support member is set in the middle of the base plate; and the indexing work turntable is positioned by the support member.

[0008] Preferably, the rotating member includes an outer mounting ring located on the mounting frame, an inner mounting ring rotatably disposed in the outer mounting ring, and a rotating sleeve rotatably disposed in the inner mounting ring; the indexing turntable is located in the rotating sleeve; the rotation directions of the inner mounting ring and the rotating sleeve are perpendicular to each other.

[0009] Preferably, the inner mounting ring rotates along the vertical plane of the outer mounting ring; and the rotating sleeve rotates coaxially with the inner mounting ring.

[0010] Preferably, the indexing work turntable is provided with a double-sided indexing work turntable surface; the two sets of indexing work turntable surfaces are one large and one small, and rotate synchronously.

[0011] Preferably, the support member includes a lifting drive member slidably arranged on the base plate; the lifting drive end of the lifting drive member is movably connected to the chassis through a rotating connector; the support plate is rotatably arranged on the chassis, rotates synchronously with the rotation of the indexing work turntable surface, and matches the inclined indexing work turntable surface, and a plurality of slidable clamping frames are arranged on the upper end of the support plate; the plurality of clamping frames form a claw-like structure to clamp the indexing work turntable surface.

[0012] Preferably, an air supply member is provided on the support plate.

[0013] Preferably, the cleaning and cooling assembly includes a cleaning and cooling box with an open upper end; the interior of the cleaning and cooling box is divided into two by a slag blocking net, and an upward-facing pressure nozzle is arranged on the top; the pressure nozzle is connected to the water storage space below the cleaning and cooling box through a pressure pump and a water pipe.

[0014] Preferably, a mounting rod is provided at the rear end of the cleaning and cooling box; an axial hole for the mounting rod to rotate and pass through is provided on the movable frame; and the fixing seat is detachably connected to the mounting rod.

[0015] Preferably, limiting members for positioning the movable frame in the working state are arranged on both sides of the cleaning and cooling box.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects: by rotating the movable frame to change the relative position of the two groups of dividing working turntables, the downtime can be reduced, the device is convenient for circulation and continuous operation, and the processing efficiency of the CNC horizontal milling and boring machine is improved. Then, by the vertical rotation of the inner mounting ring and the rotating sleeve, the dividing working turntable is rotated 360 degrees. On the one hand, after the workpiece is positioned by rotation, the workpiece can still flexibly adjust the position and angle to meet the milling / boring requirements. On the other hand, by rotating and adjusting the two groups of dividing working turntables relative to each other, the workpiece is positioned from both sides, and another working mode can be performed, which finally meets the processing requirements of different CNC horizontal milling and boring machines. In addition, during the processing, the device supports and cools down and removes dust through the support member on the one hand, and sprays water upward through the pressurized nozzle to clean and cool the workpiece on the other hand. Finally, through the above structure, the multi-directional precise indexing and rotation of the workpiece are realized, making its processing more efficient and flexible, and the cooling and cleaning effects are obvious, which improves the practicality of the CNC horizontal milling and boring machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the indexing work turntable of the CNC horizontal milling and boring machine in the present invention;

[0018] Figure 2 It is a schematic diagram of the split structure of the indexing work turntable of the CNC horizontal milling and boring machine in the present invention;

[0019] Figure 3 It is a structural schematic diagram of the indexing work turntable assembly in the present invention;

[0020] Figure 4 It is a schematic diagram of the structure of the rotating part in the present invention;

[0021] Figure 5 Schematic diagram of the structure of the support member in the present invention (viewing angle 1);

[0022] Figure 6 Schematic diagram of the structure of the support member in the present invention (viewing angle 2);

[0023] Figure 7 It is a schematic diagram of the structure of the cleaning and cooling component in the present invention;

[0024] Figure 8 for Figure 1 Enlarged schematic diagram at point A in the middle.

[0025] : 1. fixed seat; 2. movable frame; 201. slide 1; 3. indexing turntable assembly; 301. bottom plate; 302. slider 1; 303. mounting frame; 304. rotating member; 305. supporting member; 306. slide 2; 307. motor 2; 308. outer mounting ring; 309. inner mounting ring; 310. rotating sleeve; 311. indexing turntable; 312. lifting drive member; 313. rotating connector; 314. chassis; 315. supporting plate; 316. air supply member; 317. clamping frame; 318. slide 3; 4. cleaning and cooling assembly; 401. cleaning and cooling box; 402. slag screen; 403. mounting rod; 404. pressure pump; 405. pressure nozzle; 406. water pipe; 407. limit member. DETAILED DESCRIPTION

[0026] Embodiment 1, as Figure 1-Figure 2 As shown, the present invention proposes a numerically controlled horizontal milling and boring machine indexing turntable, comprising a fixed seat 1, a movable frame 2, an indexing turntable assembly 3 and a cleaning and cooling assembly 4. The fixed seat 1 is located on the milling and boring machine bed; the movable frame 2 is rotatably arranged at the front end of the fixed seat 1; the indexing turntable assembly 3 is arranged in pairs at the front end of the movable frame 2, and is respectively located on both sides of the rotation point of the movable frame 2, and the indexing turntable 311 of each group of indexing turntable assemblies 3 can rotate 360 ​​degrees and can translate at the same time; the cleaning and cooling assembly 4 is arranged through the rotation point of the movable frame 2, connected to the fixed seat 1, and the cleaning and cooling end faces upward. During operation, the indexing turntable assembly 3 is rotated to switch different indexing turntables 311 to the upper processing station, and the position and angle of the workpiece are adjusted by the 360-degree rotation and translation of the indexing turntable 311; the cleaning and cooling assembly 4 uses an upward water spraying method to clean and cool the workpiece.

[0027] like Figure 3 As shown, the indexing work turntable assembly 3 includes a base plate 301 slidably set on the movable frame 2; mounting frames 303 are set on both sides of the base plate 301; a rotating member 304 is set on the mounting frame 303; the indexing work turntable 311 adjusts the angle through the rotating member 304; a support member 305 is set in the middle of the base plate 301; and the indexing work turntable 311 is positioned by the support member 305.

[0028] It should be further explained that a slide groove 201 is provided on the movable frame 2; a lead screw 1 driven to rotate by a motor 1 is provided in the slide groove 201; a slider 302 is located at the bottom of the bottom plate 301 and extends into the slide groove 201 and is threadedly connected with the lead screw 1. When the lead screw 1 rotates, the slider 302 can drive the bottom plate 301 to slide to adjust the position of the indexing work turntable 311 so that the workpiece is opposite to the milling / boring cutter.

[0029] like Figure 4As shown, the rotating member 304 includes an outer mounting ring 308 located on the mounting frame 303, an inner mounting ring 309 rotatably disposed in the outer mounting ring 308, and a rotating sleeve 310 rotatably disposed in the inner mounting ring 309; the indexing work turntable 311 is located in the rotating sleeve 310; the rotation directions of the inner mounting ring 309 and the rotating sleeve 310 are perpendicular to each other.

[0030] Through the vertical rotation of the inner mounting ring 309 and the rotating sleeve 310, the indexing work turntable 311 is rotated 360 degrees. After the workpiece is positioned, the position and angle of the workpiece can still be flexibly adjusted to meet different processing requirements.

[0031] It needs to be further explained that a motor 2 307 is arranged on the mounting frame 303; the motor 2 307 passes through the outer mounting ring 308 and is connected to the inner mounting ring 309; so that the inner mounting ring 309 rotates along the vertical plane of the outer mounting ring 308; a gear 1 is arranged on the outer periphery of the rotating sleeve 310; a motor 3 and a gear 2 driven to rotate by the motor 3 are arranged in the inner mounting ring 309; through the meshing of gear 2 and gear 1, the rotating sleeve 310 and the inner mounting ring 309 rotate coaxially.

[0032] It should be further explained that the indexing work turntable 311 is provided with a double-sided indexing work turntable surface; the two sets of indexing work turntable surfaces are one large and one small, and they rotate synchronously through the cooperation of the worm wheel and the worm in the internal transmission structure.

[0033] The staff can select a suitable indexing work turntable surface by turning over the indexing work turntable 311 according to the workpiece positioning requirements.

[0034] like Figure 5-Figure 6 As shown, the support member 305 includes a lifting drive member 312 slidably set on the base plate 301; the lifting drive end of the lifting drive member 312 is movably connected to the chassis 314 through a rotating connector 313; the support plate 315 is rotatably set on the chassis 314, rotates synchronously with the rotation of the indexing work turntable surface, and matches the inclined indexing work turntable surface, and a plurality of slidable clamping frames 317 are set on the upper end of the support plate 315; the plurality of clamping frames 317 constitute a claw-like structure, which clamps the indexing work turntable surface to achieve the purpose of fixing the indexing work turntable 311, and facilitates the precise indexing and rotation of the indexing work turntable 311.

[0035] It should be further explained that the lifting drive member 312 is a lifting cylinder; a second slide slot 306 is provided on the bottom plate 301; a motor 4 and a lead screw 2 driven to rotate by the motor 4 are provided in the second slide slot 306; a slider 2 at the bottom of the lifting cylinder is provided to extend into the second slide slot 306, and the slider 2 is threadedly connected with the lead screw 2 to realize the horizontal movement of the lifting drive member 312. The horizontal movement of the lifting drive member 312 is mainly to provide sufficient space when the indexing work turntable 311 is turned over more than ninety degrees.

[0036] It should be further explained that the rotating joint 313 includes a steel ball connected to the telescopic rod of the lifting cylinder and a rotating table rotatably sleeved on the steel ball; the chassis 314 is connected to the rotating table, and then rotatably connected to the support plate 315. The support plate 315 can be flexibly rotated to fit the indexing work turntable surface below.

[0037] It needs to be further explained that a slide groove three 318 is provided on the support plate 315; a motor five and a screw three driven to rotate by the motor five are provided in the slide groove three 318; the bottom of the clamping frame 317 extends into the slide groove three 318, and is threadedly connected with the screw three, so that multiple groups of clamping frames 317 are gathered / spread on the support plate 315 to clamp the dividing turntable surfaces of different sizes.

[0038] It should be further explained that an air supply member 316 is provided on the support plate 315; the air supply member 316 is a fan, which increases air circulation by supplying air upward, thereby achieving cooling and dust removal of the indexing work turntable 311 and the workpieces fixed thereon.

[0039] It should be further explained that ventilation holes are provided on the outer mounting ring 308 and the inner mounting ring 309 to further increase ventilation.

[0040] Embodiment 2: Based on embodiment 1, this embodiment further discloses the structure of the cleaning and cooling component 4, which is specifically as follows.

[0041] like Figure 7 As shown, the cleaning and cooling assembly 4 includes a cleaning and cooling box 401 with an open upper end; the interior of the cleaning and cooling box 401 is divided into two by a slag blocking net 402, and an upward-facing pressurized nozzle 405 is arranged on the top; the pressurized nozzle 405 is connected to the water storage space below the cleaning and cooling box 401 through a pressurized pump 404 and a water pipe 406.

[0042] When cooling and removing dust by air supply, water is sprayed upwards through the pressurized nozzle 405 to clean and cool the workpiece. The dust settles and falls on the slag screen 402. A filtering device acting on the water inlet end of the water pipe 406 can be set inside the cleaning and cooling box 401, so that the purified water enters the spraying cycle.

[0043] It should be further explained that a mounting rod 403 is provided at the rear end of the cleaning and cooling box 401; an axial hole is provided on the movable frame 2 for the mounting rod 403 to rotate and penetrate; the fixing seat 1 is detachably connected to the mounting rod 403; a rotating bearing is provided in the axial hole to improve the smoothness of the rotation of the mounting rod 403. A mounting cylinder is provided on the fixing seat 1 to engage with the mounting rod 403 and is fixed by bolts.

[0044] In addition, a gear three is provided at the rear end of the movable frame 2 and is rotated and penetrated by a rotating bearing; a motor six and a gear four driven to rotate by the motor six are provided on the fixed seat 1; the movable frame 2 is rotated by the meshing of the gear three and the gear four, and at the same time, the cleaning and cooling box 401 always keeps its opening facing upward.

[0045] like Figure 8 As shown, both sides of the cleaning and cooling box 401 are provided with limit members 407 for positioning the movable frame 2 in the working state; the limit members 407 include positioning plates driven to rotate by a motor 7; the positioning plates are elliptical, and when working, they rotate until the convex ends engage with the side walls of the movable frame 2, and when not working, they rotate until the convex ends are separated from the side walls of the movable frame 2.

[0046] Embodiment 3, the present invention proposes a working method of the indexing work turntable of the CNC horizontal milling and boring machine based on the above embodiment, the steps are as follows:

[0047] S1. According to the workpiece positioning requirements, the indexing work turntable 311 is turned over to select a suitable indexing work turntable surface;

[0048] S2, fix the workpiece to be processed on two sets of divided working turntable surfaces facing outward;

[0049] S3, rotating the movable frame 2 to move the workpiece to the upper end;

[0050] S4, adjusting the position and angle of the workpiece to be opposite to the milling / boring end of the machine tool by sliding the bottom plate 301 and rotating the indexing work turntable 311;

[0051] S5, the multiple clamping frames 317 rise and move to the indexing work turntable surface to clamp and start processing the workpiece;

[0052] S6, the indexing work turntable 311 performs indexing and rotation, and at the same time continues to adjust the position and angle of the workpiece according to the processing requirements;

[0053] S7, during the processing, the workpiece is cooled and dusted by air supply on the one hand, and water is sprayed upward by the pressurized nozzle 405 on the other hand to clean and cool the workpiece;

[0054] S8, after the processing of the upper workpiece is completed, the movable frame 2 rotates to move the lower workpiece to be processed upwards to enter the next round of processing;

[0055] S9. The staff disassembles the processed workpiece below.

[0056] Embodiment 4, the present invention proposes another working method of the indexing work turntable of the CNC horizontal milling and boring machine described in the above embodiment, the steps are as follows:

[0057] S1. According to the workpiece positioning requirements, the indexing work turntable 311 is turned over to select a suitable indexing work turntable surface;

[0058] S2, multiple groups of clamping frames 317 move outward, and two groups of selected indexing work turntable surfaces face each other;

[0059] S4, adjusting the distance between the two sets of graduated work turntables 311 by sliding the bottom plate 301 until the workpiece is positioned between the two and the position and angle of the workpiece are opposite to the milling / boring end of the machine tool;

[0060] S5, start processing the workpiece, by rotating the movable frame 2 and the rotating sleeve 310 to rotate in an indexing manner, and the workpiece rotates synchronously;

[0061] S6. Perform milling / boring on the periphery of the workpiece, and supply air through both ends to cool and remove dust;

[0062] S7. After processing is completed, the staff will disassemble the workpiece.

[0063] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A CNC horizontal milling and boring machine indexing turntable, characterized in that: include: A fixed seat (1) is located on the bed of the milling and boring machine; A movable frame (2) is rotatably arranged at the front end of the fixed seat (1); The indexing work turntable assemblies (3) are arranged in pairs at the front end of the movable frame (2) and are respectively located on both sides of the rotation point of the movable frame (2); the indexing work turntable (311) of each group of indexing work turntable assemblies (3) can rotate 360 ​​degrees and can translate at the same time; and a cleaning and cooling component (4), which is disposed through the rotating point of the movable frame (2) and is connected to the fixed seat (1), with the cleaning and cooling end facing upward; The indexing work turntable assembly (3) comprises a base plate (301) slidably arranged on a movable frame (2); mounting frames (303) are arranged on both sides of the base plate (301); a rotating member (304) is arranged on the mounting frame (303); the indexing work turntable (311) is adjusted in angle by means of the rotating member (304); a supporting member (305) is arranged in the middle of the base plate (301); and the indexing work turntable (311) is positioned by means of the supporting member (305); The rotating member (304) comprises an outer mounting ring (308) located on the mounting frame (303), an inner mounting ring (309) rotatably disposed in the outer mounting ring (308), and a rotating sleeve (310) rotatably disposed in the inner mounting ring (309); the indexing work turntable (311) is located in the rotating sleeve (310), and the indexing work turntable (311) is provided with a double-sided indexing work turntable surface; the double-sided indexing work turntable surface is one large and one small, and rotates synchronously; the rotation directions of the inner mounting ring (309) and the rotating sleeve (310) are perpendicular to each other; The support member (305) comprises a lifting drive member (312) slidably arranged on the bottom plate (301); the lifting drive end of the lifting drive member (312) is movably connected to the chassis (314) via a rotating joint (313); the support plate (315) is rotatably arranged on the chassis (314), rotates synchronously with the rotation of the indexing work turntable surface, and matches the inclined indexing work turntable surface; a plurality of slidable clamping frames (317) are arranged on the upper end of the support plate (315), and an air supply member (316) is arranged on the support plate (315); the plurality of clamping frames (317) constitute a claw-shaped structure to clamp the indexing work turntable surface; During operation, the indexing work turntable assembly (3) is rotated to switch different indexing work turntables (311) to the upper processing station, and the position and angle of the workpiece are adjusted by the 360-degree rotation and translation of the indexing work turntable (311); the cleaning and cooling assembly (4) cleans and cools the workpiece by spraying water upward.

2. The indexing work turntable of the CNC horizontal milling and boring machine according to claim 1 is characterized in that: The inner mounting ring (309) rotates along the vertical plane of the outer mounting ring (308); The rotating sleeve (310) rotates coaxially with the inner mounting ring (309).

3. The indexing work turntable of the CNC horizontal milling and boring machine according to claim 1 is characterized in that: The cleaning and cooling component (4) comprises a cleaning and cooling box (401) with an open upper end; the interior of the cleaning and cooling box (401) is divided into two by a slag blocking net (402), and an upwardly directed pressurizing nozzle (405) is arranged on the upper side; the pressurizing nozzle (405) is connected to the water storage space below the cleaning and cooling box (401) via a pressurizing pump (404) and a water pipe (406).

4. The indexing work turntable of the CNC horizontal milling and boring machine according to claim 3 is characterized in that: A mounting rod (403) is arranged at the rear end of the cleaning and cooling box (401); an axial hole for the mounting rod (403) to rotate and penetrate is arranged on the movable frame (2); and the fixing seat (1) is detachably connected to the mounting rod (403).

5. The indexing work turntable of the CNC horizontal milling and boring machine according to claim 3 is characterized in that: Positioning members (407) for positioning the movable frame (2) in a working state are arranged on both sides of the cleaning and cooling box (401).

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