Turning, milling and grinding device

Abstract

The utility model discloses a turning, milling and grinding device, which belongs to the technical field of grinding machine tools, and is characterized in that the turning, milling and grinding device comprises a lathe bed, a slide carriage, a turning component and a grinding component, the slide carriage is arranged on the lathe bed in a sliding manner, a spindle box and a tailstock are arranged on the slide carriage, a chuck is arranged at the output end of the spindle box, and the chuck and the tailstock can be matched to clamp a workpiece; the turning assembly and the grinding assembly are arranged on the lathe bed in a spaced mode and are close to the side edge of the slide carriage, the turning assembly is used for turning a workpiece, and the grinding assembly is used for grinding the outer wall of the workpiece. According to the device, the workpiece clamping time can be saved, finish machining and grinding can be completed with the same positioning reference, the machining precision of the workpiece can be improved, more outer circle allowance can be turned in the finish machining process of the workpiece, the outer circle allowance needing to be ground during grinding is smaller, and therefore the workpiece grinding time is effectively shortened, and the machining efficiency of the workpiece is improved. And the machining efficiency of the workpiece is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of grinding machine tools, and particularly relates to a turning, milling and grinding device. Background Art

[0002] Lathes and grinders are both machine tools. Lathes are usually used for turning processes, such as turning inner circles, outer circles, conical surfaces, end faces, boring, drilling or knurling. They can also turn commonly used metric and imperial threads. If you want to grind the workpiece, you usually need to use a special grinder.

[0003] For example, a Chinese patent with publication number CN220548071U discloses a belt grinding device for a horizontal lathe, which includes a lathe body, the lathe body includes a bed, a headstock and a tailstock are respectively provided at both ends of the bed, a clamp is provided on the side of the headstock facing the tailstock, and the clamp and the tailstock are used to clamp the workpiece; bed guide rails are provided laterally symmetrically on the top of the bed, the bed guide rails are slidably connected to a slide, and a belt grinder body is slidably connected to one side of the top of the slide, the belt grinder body includes a mounting frame, the bottom of the mounting frame is slidably connected to the top of the slide, and a grinding component for grinding the workpiece is provided on the side of the mounting frame close to the workpiece. When the lathe is processing, one end of the workpiece that has been rough-turned is placed on the fixture for clamping, and the other end is against the tailstock, so that the workpiece is fixed; then the sanding belt is against the outer circumference of the workpiece, and the headstock drives the fixture to rotate. When the fixture rotates, the workpiece is driven to rotate synchronously with the cooperation of the tailstock. At the same time, the motor output shaft drives the first rotating shaft and the first sanding belt wheel to rotate, and the first sanding belt wheel and the second sanding belt wheel cooperate to drive the sanding belt to rotate, so that the rotating sanding belt workpiece surface is polished. During polishing, the slide feed box controls the slide to slide at a uniform speed along the trajectory of the bed guide rail, so as to polish the workpiece surface at a uniform and complete speed.

[0004] However, the functions of the above-mentioned horizontal lathe are relatively simple and it can only perform the processing of grinding the outer wall of the workpiece. Moreover, the same workpiece is repeatedly loaded and unloaded on the lathes at different working steps, and it is difficult to ensure the coaxiality of the outer circle of the workpiece, especially when processing the workpiece after fine turning. The processing accuracy of the workpiece is often difficult to ensure due to the low clamping accuracy. Therefore, when the above-mentioned horizontal lathe processes the workpiece after rough turning, the above-mentioned horizontal lathe needs to grind more outer circle allowance, resulting in a long processing time for a single workpiece and low production efficiency. Utility Model Content

[0005] The purpose of the utility model is to propose a turning, milling and grinding device in view of the above problems existing in the prior art. The technical problem to be solved by the utility model is: how to improve the processing efficiency of workpieces.

[0006] The above technical objectives of the utility model can be achieved through the following technical solutions:

[0007] A turning, milling and grinding device comprises a bed, a slide, a turning assembly and a grinding assembly. The slide is slidably arranged on the bed, a spindle box and a tailstock are arranged on the slide, a chuck is arranged at the output end of the spindle box, and the chuck and the tailstock can cooperate to clamp a workpiece; the turning assembly and the grinding assembly are arranged on the bed at intervals, and the turning assembly and the grinding assembly are close to the side of the slide, the turning assembly is used for turning the workpiece, and the grinding assembly is used for grinding the outer wall of the workpiece.

[0008] In the above-mentioned turning, milling and grinding device, the turning assembly and the grinding assembly are arranged side by side on the same side of the slide, and the bed is provided with a crushing opening, and the crushing opening is located between the turning assembly and the grinding assembly.

[0009] In the above-mentioned turning and milling device, a driving motor is arranged on the bed, a threaded sleeve is arranged at the lower end of the slide, a screw rod is arranged at the output end of the driving motor, and the screw rod is threadedly connected with the threaded sleeve.

[0010] In the above-mentioned turning and milling grinding device, the turning assembly includes a base, a support plate, a turret, and a feed motor. The base is arranged on the bed, the support plate is slidably connected to the base, a screw sleeve is arranged at the lower end of the support plate, the turret is arranged on the support plate, and the feed motor is arranged at the end of the base. The output end of the feed motor is connected to the screw sleeve through a screw, and the output end of the feed motor can drive the turret to approach and move away from the workpiece.

[0011] In the above-mentioned turning and milling grinding device, the grinding assembly includes a base two, a support plate two, a power box, and a feed motor two. The base two is arranged on the bed, the support plate two is slidably connected to the base two, the lower end of the support plate two is provided with a screw sleeve two, the power box is arranged on the base two, the output end of the power box is provided with a grinding wheel, the feed motor two is arranged on the base two, the output end of the feed motor two is connected to the screw sleeve two through the screw two, and the output end of the feed motor two can drive the power box to approach and move away from the workpiece.

[0012] In the above-mentioned turning, milling and grinding device, a sleeve is arranged in the power box, a stator is arranged in the sleeve, a rotor is rotatably arranged in the stator, an electric spindle is arranged in the rotor, the electric spindle is in contact with the inner wall of the sleeve through a front bearing, a heat dissipation duct is opened in the electric spindle, the heat dissipation duct has a large diameter end and a small diameter end close to the grinding wheel; a mounting sleeve is arranged at the front end of the electric spindle, a pressure plate is detachably connected to the mounting sleeve, and the pressure plate cooperates with the mounting sleeve to clamp the grinding wheel.

[0013] In the above-mentioned turning and milling device, the pressure plate and the mounting sleeve are connected by bolts; four positioning grooves are circumferentially spaced apart on the mounting sleeve, and the pressure plate is provided with positioning blocks adapted to the positioning grooves, the number of the positioning blocks corresponds one to one to the number of the positioning grooves, and after the positioning blocks are plugged into the positioning grooves, the mounting sleeve limits the circumferential position of the pressure plate.

[0014] In the above-mentioned turning, milling and grinding device, a conical mounting portion is provided at the front end of the electric spindle, an assembly hole adapted to the conical mounting portion is provided in the mounting sleeve, a flange for limiting the mounting sleeve is connected to the front end of the electric spindle, and an air hole connected to the heat dissipation air duct is provided on the flange.

[0015] In the above-mentioned turning, milling and grinding device, a pad is provided between the second support plate and the power box, and the pad is used to adjust the horizontal reference of the power box.

[0016] In the above-mentioned turning and milling device, the rear end of the sleeve is connected to a bearing seat, a rear bearing is arranged in the bearing seat, and the inner ring of the rear bearing is connected to the rear end of the electric spindle.

[0017] In summary, the beneficial effects of the present invention compared with the prior art are as follows:

[0018] The workpiece to be processed is clamped between the chuck and the tailstock, so as to achieve a single positioning of the workpiece, and then the workpiece is turned and finished by the turning component, and the drive motor drives the workpiece to slide relative to the bed, so as to achieve the overall turning of the workpiece; then the outer wall of the workpiece is processed by the grinding component, and the drive motor drives the workpiece to slide and reset. In other words, after the workpiece is clamped once, it can not only save the cumulative time of workpiece clamping, but also complete the finishing and grinding with the same positioning reference, which can improve the processing accuracy of the workpiece. The workpiece can turn more outer circle allowances during the finishing process, and less outer circle allowances need to be ground during grinding, thereby effectively reducing the grinding time of the workpiece, and then improving the processing efficiency of the workpiece. In addition, the grinding wheel is driven by the electric spindle, with greater torque and better stability during grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic top view of an embodiment;

[0020] Figure 2 for Figure 1 A schematic diagram of the side structure of

[0021] Figure 3 Schematic diagram of the bottom structure of the slide in the embodiment;

[0022] Figure 4 is a schematic structural diagram of a turning assembly in an embodiment;

[0023] Figure 5 is a partial structural schematic diagram of a turning assembly in an embodiment;

[0024] Figure 6 is a schematic structural diagram of a grinding assembly in an embodiment;

[0025] Figure 7 for Figure 6 A cross-sectional schematic diagram of

[0026] Figure 8 is a partial structural schematic diagram of a grinding assembly in an embodiment;

[0027] Fig. 9 A schematic diagram of a partial exploded structure of a grinding assembly in an embodiment;

[0028] Fig.10 for Fig. 9 Another side structural diagram of .

[0029] Reference numerals: 1. workpiece;

[0030] 100, bed; 110, chipping opening; 120, drive motor; 121, screw;

[0031] 200, slide; 210, spindle box; 211, chuck; 220, tailstock; 230, threaded sleeve;

[0032] 300, turning assembly; 310, base one; 320, support plate one; 321, screw rod sleeve one; 330, turret; 340, feed motor one; 341, screw rod one;

[0033] 400, grinding assembly; 410, base 2; 420, support plate 2; 421, screw sleeve 2; 430, power box; 431, sleeve; 432, stator; 433, rotor; 434, electric spindle; 4341, heat dissipation air duct; 4342, conical mounting portion; 435, bearing seat; 4351, rear bearing; 436, front bearing; 440, feed motor 2; 441, screw 2; 450, pad;

[0034] 500, mounting sleeve; 510, grinding wheel; 520, positioning groove; 530, assembly hole;

[0035] 600, pressing plate; 610, mounting hole; 611, bolt; 620, replacement hole; 630, positioning block;

[0036] 700, flange; 710, air hole. DETAILED DESCRIPTION

[0037] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0038] like Figure 1-Figure 10 As shown, a turning, milling and grinding device includes a bed 100, a slide 200, a turning assembly 300 and a grinding assembly 400. The slide 200 is slidably arranged on the bed 100 through a guide rail. A spindle box 210 and a tailstock 220 are arranged on the slide 200. A chuck 211 is arranged at the output end of the spindle box 210. The chuck 211 and the tailstock 220 can cooperate to clamp the workpiece 1; the turning assembly 300 and the grinding assembly 400 are arranged on the bed 100 at intervals, and the turning assembly 300 and the grinding assembly 400 are close to the side of the slide 200. The turning assembly 300 is used for turning the inner circle and outer circle of the workpiece 1, and the grinding assembly 400 is used for grinding and polishing the outer wall of the workpiece 1.

[0039] like Figure 1-Figure 3 As shown, the turning assembly 300 and the grinding assembly 400 are arranged side by side on the same side of the slide 200, and the bed 100 has a crushing opening 110, which is located between the turning assembly 300 and the grinding assembly 400; in some embodiments, a waste box is placed under the crushing opening 110 to collect processing waste of the workpiece 1.

[0040] The bed 100 is provided with a driving motor 120, the lower end of the slide 200 is provided with a threaded sleeve 230, and the output end of the driving motor 120 is provided with a screw rod 121, which is threadedly connected with the threaded sleeve 230. Specifically, the driving motor 120 drives the screw rod 121 to rotate forward or reverse, and the screw rod 121 can drive the threaded sleeve 230 and the slide 200 to slide relative to the bed 100 as a whole, so as to feed the part of the workpiece 1 to be processed to the turning assembly 300 or the grinding assembly 400.

[0041] like Figure 1-Figure 5 As shown, the turning assembly 300 includes a base 310, a support plate 320, a turret 330 and a feed motor 340. The base 310 is arranged on the bed 100, the support plate 320 is slidably connected to the base 310, the lower end of the support plate 320 is provided with a screw sleeve 321, the turret 330 is arranged on the support plate 320, and a plurality of machining tools are distributed on the turret 330; the feed motor 340 is arranged at the end of the base 310 away from the workpiece 1, and the output end of the feed motor 340 is connected to the screw sleeve 321 through the screw 341, so that the output end of the feed motor 340 can drive the turret 330 to approach and move away from the workpiece 1. As another solution, the turning assembly 300 can also use a fine turning power head in the prior art.

[0042] like Figure 6-Figure 10As shown, the grinding assembly 400 includes a second base 410, a second support plate 420, a power box 430 and a second feed motor 440. The second base 410 is arranged on the bed 100, and the second support plate 420 is slidably connected to the second base 410. The lower end of the second support plate 420 is provided with a second screw sleeve 421; the power box 430 is arranged on the second base 410, and a sleeve 431 is arranged in the power box 430, and a stator 432 is arranged in the sleeve 431. A rotor 433 is rotatably arranged in the stator 432, and an electric spindle 434 as a power output is arranged in the rotor 433. The electric spindle 434 rotates synchronously with the rotor 433. A heat dissipation duct 4341 is opened in the electric spindle 434, and the heat dissipation duct 4341 has a large-diameter end and a small-diameter end that are connected, and the small-diameter end is close to the front end of the electric spindle 434; a mounting sleeve 500 is provided at the front end of the electric spindle 434, and a pressure plate 600 is detachably connected to the mounting sleeve 500, and the pressure plate 600 cooperates with the mounting sleeve 500 to clamp the grinding wheel 510; the feed motor 440 is arranged on the base 410, and the output end of the feed motor 440 is connected to the screw sleeve 421 through the screw 441, and the output end of the feed motor 440 can drive the power box 430 to approach and move away from the workpiece 1.

[0043] In this embodiment, two mounting holes 610 and two replacement holes 620 are spaced apart on the pressure plate 600. A bolt 611 is rotatably provided in each of the two mounting holes 610. The inner end of the bolt 611 is threadedly connected to the mounting sleeve 500. By rotating the bolt 611, the pressure plate 600 can be pushed toward the mounting sleeve 500 or the distance between the pressure plate 600 and the mounting sleeve 500 can be increased. The replacement hole 620 has the same structure and function as the mounting hole 610. The replacement hole 620 is used for temporarily installing the bolt 611 to increase the clamping force on the grinding wheel 510. Under normal conditions, only two mounting holes 610 and two bolts 611 need to be used, and the two replacement holes 620 are idle.

[0044] like Figure 7-Figure 10 As shown, four positioning grooves 520 are arranged circumferentially at intervals on the mounting sleeve 500, and positioning blocks 630 adapted to the positioning grooves 520 are arranged on the end surface of the pressing plate 600. The number of positioning blocks 630 corresponds to the number of positioning grooves 520, and after the positioning blocks 630 are plugged into the positioning grooves 520, the mounting sleeve 500 limits the circumferential position of the pressing plate 600. The positioning grooves 520 and the positioning blocks 630 are used to deal with the lateral shear force between the pressing plate 600 and the mounting sleeve 500, so that the pressing plate 600 and the mounting sleeve 500 will not rotate relative to each other. Therefore, in this embodiment, only two bolts 611 are needed to achieve the clamping between the pressing plate 600 and the mounting sleeve 500, and the speed of replacing the grinding wheel 510 is faster.

[0045] A conical mounting portion 4342 is provided at the front end of the electric spindle 434, and an assembly hole 530 adapted to the conical mounting portion 4342 is provided in the mounting sleeve 500. A flange 700 for limiting the mounting sleeve 500 is clamped or screwed at the front end of the electric spindle 434, and an air hole 710 at the small diameter end connected to the heat dissipation air duct 4341 is provided on the flange 700, so that the heat dissipation air duct 4341 is connected to the outside through the air hole 710.

[0046] like Figure 6 , Figure 7 As shown, a plurality of layers of pads 450 are provided between the support plate 420 and the power box 430. By increasing or decreasing the number of overlapping pads 450, or by grinding the end faces of the pads 450, the horizontal reference of the power box 430 can be adjusted so that the central axis of the electric spindle 434 is parallel to the placement surface (such as the ground) to reduce the vibration and working noise of the electric spindle 434, thereby improving the rotation stability of the grinding wheel 510.

[0047] like Figure 7 As shown, preferably, the rear end of the sleeve 431 is connected to a bearing seat 435, a rear bearing 4351 is arranged in the bearing seat 435, the inner ring of the rear bearing 4351 is connected to the rear end of the electric spindle 434, and the electric spindle 434 is in contact with the inner wall of the sleeve 431 through the front bearing 436, thereby reducing the rotational friction of the electric spindle 434; in some embodiments, a plurality of front bearings 436 and rear bearings 4351 are arranged in parallel.

[0048] The working principle of the utility model is as follows:

[0049] The workpiece 1 to be processed is clamped between the chuck 211 and the tailstock 220, and the output end of the feed motor 340 drives the screw 341 to rotate, thereby pushing the pallet 320 and the turret 330 toward the workpiece 1. After the workpiece 1 and the tool on the turret 330 are aligned, the output end of the drive motor 120 drives the screw 121 to rotate, and the rotating screw 121 drives the slide 200, the spindle box 210, the tailstock 220, and the workpiece 1 to move as a whole, so that the turning assembly 300 can achieve fine processing of the workpiece 1. After the turning of the workpiece 1 is completed, the feed motor 340 drives the turret 330 away from the workpiece 1.

[0050] Afterwards, the output end of the feed motor 440 drives the screw 441 to rotate, thereby pushing the support plate 420 and the power box 430 toward the workpiece 1. After the grinding wheel 510 is aligned with the workpiece 1, the stator 432 is energized, and the stator 432 drives the rotor 433, the electric spindle 434, the mounting sleeve 500, the grinding wheel 510, and the pressure plate 600 to rotate synchronously, and the grinding wheel 510 can grind the outer wall of the workpiece 1. Since more outer circle allowances of the workpiece 1 will be turned during the fine machining process, the thickness that the grinding wheel 510 needs to grind is reduced. As the output end of the drive motor 120 drives the workpiece 1 to slide to the reset position, the grinding of the workpiece 1 is completed, and the feed motor 440 drives the grinding wheel 510 away from the workpiece 1. The finished workpiece 1 can be taken out from between the chuck 211 and the tailstock 220, and the new workpiece to be processed is clamped between the chuck 211 and the tailstock 220, and the device can process the new workpiece.

[0051] Chips and dust generated by turning and grinding the workpiece 1 are discharged through the chip opening 110 .

[0052] The workpiece 1 only needs to be clamped once, which saves the cumulative time of clamping the workpiece 1, and completes the finishing and grinding with the same positioning reference, which can improve the machining accuracy of the workpiece 1. The device can also effectively reduce the grinding time of the workpiece 1 and improve the machining efficiency of the workpiece 1.

[0053] The specific embodiments described in this article are merely examples of the spirit of the utility model; technicians in the technical field to which the utility model belongs can make various modifications or additions to the described specific embodiments or replace them in a similar manner, but will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A turning, milling and grinding device, characterized in that: The invention comprises a bed (100), a slide (200), a turning assembly (300), and a grinding assembly (400); the slide (200) is slidably arranged on the bed (100); a spindle box (210) and a tailstock (220) are arranged on the slide (200); a chuck (211) is arranged at the output end of the spindle box (210); the chuck (211) and the tailstock (220) can cooperate to clamp a workpiece (1); the turning assembly (300) and the grinding assembly (400) are arranged on the bed (100) at intervals, and the turning assembly (300) and the grinding assembly (400) are close to the side of the slide (200); the turning assembly (300) is used for turning the workpiece (1), and the grinding assembly (400) is used for grinding the outer wall of the workpiece (1).

2. The turning, milling and grinding device according to claim 1, characterized in that: The turning assembly (300) and the grinding assembly (400) are arranged in parallel on the same side of the slide (200); the bed (100) is provided with a crushing opening (110); and the crushing opening (110) is located between the turning assembly (300) and the grinding assembly (400).

3. The turning, milling and grinding device according to claim 1, characterized in that: A driving motor (120) is arranged on the bed (100), a threaded sleeve (230) is arranged at the lower end of the slide (200), a screw rod (121) is arranged at the output end of the driving motor (120), and the screw rod (121) is threadedly connected to the threaded sleeve (230).

4. The turning, milling and grinding device according to claim 1, characterized in that: The turning assembly (300) comprises a base (310), a support plate (320), a turret (330), and a feed motor (340); the base (310) is arranged on the bed (100); the support plate (320) is slidably connected to the base (310); a screw sleeve (321) is arranged at the lower end of the support plate (320); the turret (330) is arranged on the support plate (320); the feed motor (340) is arranged at the end of the base (310); the output end of the feed motor (340) is connected to the screw sleeve (321) via a screw (341); and the output end of the feed motor (340) can drive the turret (330) to approach and move away from the workpiece (1).

5. The turning, milling and grinding device according to any one of claims 1 to 4, characterized in that: The grinding assembly (400) comprises a second base (410), a second support plate (420), a power box (430), and a second feed motor (440). The second base (410) is arranged on the bed (100), the second support plate (420) is slidably connected to the second base (410), a second screw sleeve (421) is arranged at the lower end of the second support plate (420), the power box (430) is arranged on the second base (410), a grinding wheel (510) is arranged at the output end of the power box (430), and the second feed motor (440) is arranged on the second base (410), the output end of the second feed motor (440) is connected to the second screw sleeve (421) through the second screw (441), and the output end of the second feed motor (440) can drive the power box (430) to approach and move away from the workpiece (1).

6. The turning, milling and grinding device according to claim 5, characterized in that: A sleeve (431) is arranged in the power box (430), a stator (432) is arranged in the sleeve (431), a rotor (433) is rotatably arranged in the stator (432), an electric spindle (434) is arranged in the rotor (433), the electric spindle (434) is in contact with the inner wall of the sleeve (431) via a front bearing (436), a heat dissipation duct (4341) is provided in the electric spindle (434), the heat dissipation duct (4341) has a large diameter end and a small diameter end close to the grinding wheel (510); a mounting sleeve (500) is arranged at the front end of the electric spindle (434), a pressure plate (600) is detachably connected to the mounting sleeve (500), and the pressure plate (600) cooperates with the mounting sleeve (500) to clamp the grinding wheel (510).

7. The turning, milling and grinding device according to claim 6, characterized in that: The pressure plate (600) and the mounting sleeve (500) are connected by bolts (611); four positioning grooves (520) are circumferentially spaced apart on the mounting sleeve (500); the pressure plate (600) is provided with positioning blocks (630) adapted to the positioning grooves (520); the number of the positioning blocks (630) corresponds to the number of the positioning grooves (520); and after the positioning blocks (630) are plugged into the positioning grooves (520), the mounting sleeve (500) limits the circumferential position of the pressure plate (600).

8. The turning, milling and grinding device according to claim 6, characterized in that: The front end of the electric spindle (434) is provided with a conical mounting portion (4342), the mounting sleeve (500) has an assembly hole (530) adapted to the conical mounting portion (4342), the front end of the electric spindle (434) is connected to a flange (700) for limiting the mounting sleeve (500), and the flange (700) has an air hole (710) connected to the heat dissipation air duct (4341).

9. The turning, milling and grinding device according to claim 6, characterized in that: A pad (450) is provided between the second support plate (420) and the power box (430), and the pad (450) is used to adjust the horizontal reference of the power box (430).

10. The turning, milling and grinding device according to claim 6, characterized in that: The rear end of the sleeve (431) is connected to a bearing seat (435), a rear bearing (4351) is arranged in the bearing seat (435), and the inner ring of the rear bearing (4351) is connected to the rear end of the electric spindle (434).

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