CN106112708A - Cylindrical Grinding Machine with Double Grinding Wheel Heads - Google Patents

Abstract

The invention discloses a double-grinding-head cylindrical grinding machine which comprises a base, wherein the base comprises a fixedly arranged jacking and clamping device for clamping and driving a workpiece to rotate, a left grinding wheel head and a right grinding wheel head which are arranged on a machine tool in a sliding manner. The left grinding wheel head and the right grinding wheel head are arranged on the same side of the top clamping device side by side, and slide along the axial direction of the top clamping device and cover the clamping area of the top clamping device, so that a clamped workpiece is ground simultaneously. The double-grinding-head cylindrical grinding machine has the advantages that errors caused by movement in the axial direction are eliminated, the stability of the grinding precision of a workpiece is improved, meanwhile, the occupied space of a machine tool is reduced, shaft shoulder steps at different positions can be ground simultaneously, the processing time is shortened, and the processing precision of the workpiece is increased.

Description

Cylindrical Grinding Machine with Double Grinding Wheel Heads

technical field

The invention relates to the field of machine tools, in particular to a cylindrical grinding machine with double grinding wheel heads.

Background technique

At present, the existing cylindrical grinder is used to grind the workpiece, and the workpiece is pressed against the thimble on the end face. The workpiece follows the spindle of the working head and moves along the axial direction of the working head. The farther the moving distance, the greater the error and the higher the grinding accuracy. Unstable, while increasing the occupied space of the machine tool. Moreover, the existing cylindrical grinding machine is used for grinding with a single grinding wheel. When there are many and long workpiece steps, the processing time is long and the labor cost is high.

Contents of the invention

Based on this, it is necessary to provide a double grinding wheel head cylindrical grinding machine for the problems of unstable precision and long processing time of the existing cylindrical grinding machines.

A double grinding wheel head cylindrical grinding machine, the double grinding wheel head cylindrical grinding machine includes a machine base, the machine base includes a fixed top clamping device for clamping and driving a workpiece to rotate, and a left grinding wheel head slidingly arranged on the machine tool, Right wheel head.

The left grinding wheel head and the right grinding wheel head are arranged side by side on the same side of the top clamping device, and the left grinding wheel head and the right grinding wheel head slide along the axial direction of the top clamping device, and cover the clamping area of the top clamping device, so that they are clamped at the same time Hold the workpiece for grinding.

Further, both the left grinding wheel head and the right grinding wheel head include a grinding wheel head base, a middle plate and an upper plate, and the upper plate is provided with a grinding wheel head body. The axial direction of the top clamping device is transverse, and the radial direction of the top clamping device is longitudinal.

The grinding wheel head base is arranged parallel to the horizontal direction, the middle plate is slidingly connected with the grinding wheel head base along the horizontal direction, and the upper plate is slidingly connected with the middle plate along the longitudinal direction.

Further, in any grinding wheel head, the middle plate is connected to the base of the grinding wheel head through a slide rail, and slides relative to the base of the grinding wheel head under the drive of the screw mandrel controlled by the first motor, and the first motor and the screw mandrel are arranged on the grinding wheel head on the base.

Further, in any grinding wheel head, the upper plate and the middle plate are connected by slide rails, and slide relative to the middle plate under the drive of the screw controlled by the second motor, and the second motor and the screw are arranged on the middle plate.

Further, the left grinding wheel head and the right grinding wheel head are arranged symmetrically with the transverse midline of the top clamping device, and any grinding wheel head body is provided with a third motor and a grinding wheel driven by the third motor to rotate, and the two grinding wheel head bodies The grinding wheels are set opposite to each other.

Further, the angle of any grinding wheel head body relative to the corresponding middle plate can be adjusted.

Furthermore, any grinding wheel head body is equipped with an end face detection device, and the top clamping device is provided with a measuring device that cooperates with the end face detection device.

Further, the screw rod is a ball screw, and the slide rail is a linear slide rail.

Further, the top clamping device includes a working head, a tailstock and a tailstock hydraulic cylinder, the working head and the tailstock are arranged at intervals, the tailstock hydraulic cylinder is connected with the tailstock, and pushes the tailstock to press the workpiece Tightly on the main shaft of the working head of the working head and the top clamp of the tailstock. The working head is also provided with a fourth motor that drives the main shaft of the working head to rotate to drive the clamped workpiece to rotate.

Further, the cylindrical grinder with double grinding wheel heads also includes a trimmer seat.

For the above-mentioned double grinding wheel head cylindrical grinding machine, the top clamping device keeps the position fixed after clamping the workpiece, and slides the left grinding wheel head and the right grinding wheel head along the axial direction of the top clamping device, so that the left grinding wheel head and the right grinding wheel head reach the workpiece position, grinding the workpiece at the same time. The above-mentioned double grinding wheel head cylindrical grinding machine eliminates the error caused by moving in the axial direction, improves the stability of the grinding accuracy of the workpiece, and at the same time reduces the occupied space of the machine tool, and can grind the shaft shoulder steps at different positions at the same time, reducing the processing time , and increase the machining accuracy of the workpiece.

Description of drawings

Fig. 1 is a schematic structural view of a double grinding wheel head cylindrical grinder of an embodiment;

Fig. 2 is a schematic structural view of the left grinding wheel head and the right grinding wheel head of an embodiment;

Fig. 3 is a schematic structural view of a top clamping device according to an embodiment.

Explanation of reference signs: 100, machine base; 200, top clamping device; 300, left grinding wheel head; 400, right grinding wheel head; 500, end face detection device; 600, trimmer seat; 110, working head; Tailstock; 130, tailstock hydraulic cylinder; 140, working head spindle; 150, top clamp; 160, fourth motor; 310, grinding wheel head base; 320, middle plate; 330, upper plate; 340, grinding wheel head body 341, slide rail; 350, the first motor; 360, the screw; 370, the second motor; 380, the third motor; 390, the grinding wheel; 510, the measuring device.

detailed description

Referring to Figures 1 to 3, a double grinding wheel head cylindrical grinding machine, the double grinding wheel head cylindrical grinding machine includes a machine base 100, the machine base 100 includes a fixed top clamping device 200 for clamping and driving the workpiece to rotate, and a sliding set The left grinding wheel head 300 and the right grinding wheel head 400 on the machine tool. The left grinding wheel head 300 and the right grinding wheel head 400 are arranged side by side on the same side of the top clamping device 200 , the left grinding wheel head 300 and the right grinding wheel head 400 slide along the axial direction of the top clamping device 200 , and cover the clamps of the top clamping device 200 clamping area so that the clamped workpiece is ground simultaneously.

The top clamping device 200 is fixedly installed on the machine base 100, and the workpiece is clamped on the clamping area of the top clamping device 200 and kept relatively stationary. The left grinding wheel head 300 and the right grinding wheel head 400 are arranged side by side on the same side of the top clamping device 200, can slide along the axial direction of the top clamping device 200, and the range of movement of the two covers the clamping area of the top clamping device 200, thus It can reach any position of the workpiece to be processed, so that the cylindrical grinder with double grinding wheel heads can meet the processing needs of various workpieces. After the left grinding wheel head 300 and the right grinding wheel head 400 are in place, the workpiece can be processed and ground simultaneously on both sides. Due to the above-mentioned double grinding wheel head cylindrical grinding machine, the error caused by moving along the axial direction is eliminated, and the stability of the grinding accuracy of the workpiece is improved; moreover, the shoulder steps at different positions can be ground at the same time, reducing the processing time and increasing the processing accuracy of the workpiece . And the left grinding wheel head 300 and the right grinding wheel head 400 are arranged side by side on the same side of the top clamping device 200, so that the whole device is arranged reasonably, compact in structure, saves space, and reduces the volume of the double grinding wheel head cylindrical grinder.

For the above-mentioned double grinding wheel head cylindrical grinder, the top clamping device 200 keeps the position fixed after clamping the workpiece, and slides the left grinding wheel head 300 and the right grinding wheel head 400 along the axial direction of the top clamping device 200, so that the left grinding wheel head 300 and the right grinding wheel head The grinding wheel head 400 reaches the position of the workpiece, and grinds the workpiece at the same time. The above-mentioned double grinding wheel head cylindrical grinding machine eliminates the error caused by moving in the axial direction, improves the stability of the grinding accuracy of the workpiece, and at the same time reduces the occupied space of the machine tool, and can grind the shaft shoulder steps at different positions at the same time, reducing the processing time , and increase the machining accuracy of the workpiece.

Further, referring to FIGS. 1-2 , both the left grinding wheel head 300 and the right grinding wheel head 400 include a grinding wheel head base 310 , a middle plate 320 and an upper plate 330 , and the upper plate 330 is provided with a grinding wheel head body 340 . The axial direction of the top clamping device 200 is the transverse direction, and the radial direction of the top clamping device 200 is the longitudinal direction. The grinding wheel head base 310 is arranged in parallel in the transverse direction, the middle plate 320 is slidably connected to the grinding wheel head base 310 in the transverse direction, and the upper plate 330 is slidably connected to the middle plate 320 in the longitudinal direction.

In any grinding wheel head, by laterally adjusting the positional relationship between the middle plate 320 and the grinding wheel head base 310, the axial positional relationship between the grinding wheel head body 340 and the workpiece is adjusted. By longitudinally adjusting the positional relationship between the upper plate 330 and the middle plate 320 , the radial positional relationship between the grinding wheel head body 340 and the workpiece is adjusted. At the same time, adjusting the positional relationship between the middle plate 320 and the grinding wheel head base 310 and the positional relationship between the upper plate 330 and the middle plate 320 can meet the processing requirements of various complex workpieces. Moreover, the left grinding wheel head 300 and the right grinding wheel head 400 are independent devices, which can be processed separately, so that the grinding process of asymmetric complex workpieces can be completed. After the parts are clamped, the left grinding wheel head 300 and the right grinding wheel head 400 respectively reach the required positions by adjusting the positional relationship between the middle plate 320 and the grinding wheel head base 310, and the positional relationship between the upper plate 330 and the middle plate 320, The corresponding grinding wheel 390 arrives at the designated processing position, and then the clamped part is rotated to start grinding.

Further, referring to FIGS. 1-2, in any grinding wheel head, the middle plate 320 is connected with the grinding wheel head base 310 through the slide rail 341, and is driven by the screw rod 360 controlled by the first motor 350 to slide relative to the grinding wheel head base 310. , the first motor 350 and the screw rod 360 are arranged on the grinding wheel head base 310 .

The first motor 350 controls the screw rod 360 to make the middle plate 320 reciprocate relative to the extension direction of the grinding wheel head base 310 . The setting of the slide rail 341 makes the sliding between the two smooth, which is beneficial to improve the processing precision. The use of screw rod 360 transmission and slide rail 341 movement makes the service life of the machine tool longer.

Further, referring to FIGS. 1-2, in any grinding wheel head, the upper plate 330 is connected to the middle plate 320 through a slide rail 341, and is driven by the screw rod 360 controlled by the second motor 370 to slide relative to the middle plate 320. The second motor 370 and the screw rod 360 are disposed on the middle plate 320 .

The second motor 370 controls the screw rod 360 to make the upper plate 330 reciprocate relative to the extending direction of the middle plate 320 . The setting of the slide rail 341 makes the sliding between the two smooth, which is beneficial to improve the processing precision. The use of screw rod 360 transmission and slide rail 341 movement makes the service life of the machine tool longer.

Further, with reference to Figures 1-2, the left grinding wheel head 300 and the right grinding wheel head 400 are arranged symmetrically with the transverse midline of the top clamping device 200, and any grinding wheel head body 340 is provided with a third motor 380 and driven by the third The motor 380 drives the rotating grinding wheel 390 , and the grinding wheels 390 of the two grinding wheel head bodies 340 are arranged facing each other.

The symmetrical arrangement of the left grinding wheel head 300 and the right grinding wheel head 400 makes the layout of the double grinding wheel head cylindrical grinder more reasonable and further reduces the volume. The grinding wheels 390 of the two grinding wheel head bodies 340 are arranged facing each other, and the two grinding wheels 390 are arranged on the inner side in the middle of the double grinding wheel head cylindrical grinding machine, close to each other. The two grinding wheels 390 can simultaneously process from the middle of the workpiece to both ends, or from both ends to the middle. When the workpiece has a symmetrical structure, the processing of the two grinding wheels 390 ends at the same time, which shortens the processing time, saves power, and improves production efficiency.

Further, referring to FIGS. 1-2 , the angle of any grinding wheel head body 340 relative to the corresponding middle plate 320 is adjustable. This design can adjust the angle between the grinding wheel 390 and the workpiece, so that the grinding machine of the present invention can process the outer cone surface, chamfer and grind the outer groove on the workpiece in addition to grinding the outer circle and the outer circle end face.

Further, referring to FIGS. 1-2 , any grinding wheel head body 340 is provided with an end surface detection device 500 , and the top clamping device 200 is provided with a measuring device 510 that cooperates with the end surface detection device 500 . The end face detection device 500 cooperates with the measuring mechanism to measure the processed workpieces respectively to ensure the dimensions of the workpieces.

Further, the screw 360 is a ball screw 360 , and the sliding rail 341 is a linear sliding rail 341 . This design can further increase the life of the machine tool.

Further, with reference to Figures 1 to 3, the top clamping device 200 includes a working head 110, a tailstock 120 and a tailstock hydraulic cylinder 130, the working head 110 and the tailstock 120 are arranged at intervals, and the tailstock hydraulic cylinder 130 and The tailstock part 120 is connected, and the tailstock part 120 is pushed to press the workpiece onto the working head spindle 140 of the working head 110 and the top clamp 150 of the tailstock part 120 . The working head 110 is also provided with a fourth motor 160 that drives the working head spindle 140 to rotate to drive the clamped workpiece to rotate.

The top clamping device 200 is used to clamp the workpiece to ensure the relevant grinding steps of the workpiece and reduce the instability of product accuracy. To grind the workpiece, the center of the workpiece needs to be aligned with the tip of the main shaft 140 of the working head, and then the tailstock spindle is driven by the tailstock hydraulic cylinder 130 to drive the tip of the tailstock 120 to move forward against the end surface of the workpiece, thereby clamping the workpiece. Finally, the fourth motor 160 drives the spindle 140 of the working head to rotate to drive the clamped workpiece to rotate, so as to realize the related processing technology of the workpiece. Preferably, the first motor 350 , the second motor 370 , the third motor 380 and the fourth motor 160 are all servo motors.

Further, referring to FIGS. 1-3 , the cylindrical grinder with double grinding wheel heads also includes a trimmer seat 600 . When the grinding wheel 390 wears out, it can be automatically repaired by the knife repairing seat 600 to ensure the processing precision. Simultaneously, the trimmer seat 600 can trim the shape of the grinding wheel 390 to make it have a certain angle, so that the cylindrical grinder with double grinding wheel heads can grind the outer cone surface, grind the chamfer, and grind the outer groove.

Furthermore, the dual-wheel head cylindrical grinding machine system has dual-channel function and secondary development function, so that there are two independent running tracks in the system, and a number of plug-in programs have been added, making the operation of the machine tool easier and more efficient. The degree of automation of the double grinding wheel head cylindrical grinder is high, and the system has secondary development function, which can import CAD graphics into the system, and the system will automatically generate grinding programs according to the CAD graphics, which is convenient and fast, and reduces the preparation time in the early stage.

Working principle of the present invention:

For the above-mentioned double grinding wheel head cylindrical grinder, the top clamping device 200 keeps the position fixed after clamping the workpiece, and slides the left grinding wheel head 300 and the right grinding wheel head 400 along the axial direction of the top clamping device 200, so that the left grinding wheel head 300 and the right grinding wheel head The grinding wheel head 400 reaches the position of the workpiece, and grinds the workpiece at the same time. The above-mentioned double grinding wheel head cylindrical grinding machine eliminates the error caused by moving in the axial direction, improves the stability of the grinding accuracy of the workpiece, and at the same time reduces the occupied space of the machine tool, and can grind the shaft shoulder steps at different positions at the same time, reducing the processing time , and increase the machining accuracy of the workpiece.

The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (10)

1. a double abrasive wheel head cylindrical grinder, it is characterised in that described double abrasive wheel head cylindrical grinder includes support, on described support Including be fixedly installed for clamping the top clip device that drives workpiece to rotate and the left sand being slidably arranged on described lathe Wheel head, right emery wheel head；

Described left emery wheel head and described right emery wheel head are arranged side by side in described top clip device homonymy, described left emery wheel head and Described right emery wheel head sliding axially along described top clip device, and cover the clamping zone of described top clip device, thus simultaneously The workpiece of clamping is ground.

Double abrasive wheel head cylindrical grinder the most according to claim 1, it is characterised in that described left emery wheel head and described right sand Wheel head all includes wheelhead base, middle plate and upper plate, and described upper plate is provided with wheelhead body；Described top clip device axial For laterally, the radial direction of described top clip device is longitudinally；

Described wheelhead base transversely be arranged in parallel, and described middle plate is transversely slidably connected with described wheelhead base, described Upper plate is along being longitudinally slidably connected with described middle plate.

Double abrasive wheel head cylindrical grinder the most according to claim 2, it is characterised in that in arbitrary wheelhead portion, described in Plate is connected by slide rail with described wheelhead base, and the most described wheelhead under the driving of the screw mandrel controlled by the first motor Base slides, and described first motor and described screw mandrel are arranged on described wheelhead base.

Double abrasive wheel head cylindrical grinder the most according to claim 2, it is characterised in that in arbitrary wheelhead portion, described on Plate is connected by slide rail with described middle plate, and the most described middle plate slides under the driving of the screw mandrel controlled by the second motor, institute State the second motor and described screw mandrel is arranged on described middle plate.

Double abrasive wheel head cylindrical grinder the most according to claim 2, it is characterised in that described left emery wheel head and described right sand Wheel head with the transversal centerline of described top clip device for axial symmetry arrange, arbitrary described wheelhead body be provided with the 3rd motor with And being driven, by described 3rd motor, the emery wheel rotated, the emery wheel of two described wheelhead bodies is oppositely arranged.

Double abrasive wheel head cylindrical grinder the most according to claim 5, it is characterised in that arbitrary described wheelhead body is relative to phase The adjustable angle of plate in should.

Double abrasive wheel head cylindrical grinder the most according to claim 2, it is characterised in that be all provided with on arbitrary described wheelhead body End surface measurement device, described top clip device is had to be provided with the measurement apparatus coordinated with described end surface measurement device.

8. according to the double abrasive wheel head cylindrical grinder described in claim 3 or 4, it is characterised in that described screw mandrel is ball screw, institute Stating slide rail is linear slide rail.

Double abrasive wheel head cylindrical grinder the most according to claim 1, it is characterised in that described top clip device includes work head Portion, tailstock portion and tailstock oil hydraulic cylinder, described working head and interval, described tailstock portion are arranged, described tailstock oil hydraulic cylinder and described tail Seat portion connects, and promotes described tailstock portion by Work-sheet pressing on work head main shaft and the top in described tailstock portion of described working head On folder；Described working head is additionally provided with the 4th motor driving described work head main shaft to rotate to drive clamping workpiece to rotate.

10. according to the double abrasive wheel head cylindrical grinder according to any one of claim 1 ~ 9, it is characterised in that described double abrasive wheel head Cylindrical grinder also includes repairing tool rest.