CN216327528U

CN216327528U - Double-end centre bore grinds machine

Info

Publication number: CN216327528U
Application number: CN202122999957.XU
Authority: CN
Inventors: 陈琪; 高思帅; 李海建; 叶丹青; 邹军
Original assignee: Zhejiang Jack Intelligent Equipment Co ltd
Current assignee: Zhejiang Jack Intelligent Equipment Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-04-19
Anticipated expiration: 2031-11-30

Abstract

The utility model belongs to the technical field of machine tools, in particular to a double-head center hole grinding machine; the grinding machine comprises a worktable, a guide rail, a first grinding head and a second grinding head, wherein the guide rail is oppositely provided with the first grinding head and the second grinding head, the first grinding head is provided with a first top point driven by the first grinding head to rotate, the second grinding head is provided with a second top point driven by the second grinding head to rotate, the central lines of the first top point and the second top point are overlapped, the first grinding head or the second grinding head is driven by a driving mechanism to move along the guide rail, a supporting plate is arranged on the first grinding head or the second grinding head, a workpiece bracket is arranged on the supporting plate, and the supporting plate and the workpiece bracket move along with the first grinding head or the second grinding head; the utility model improves the roundness error of the center hole, solves the technical problems of poor roundness, smoothness and coaxiality of the excircle generated after the shaft workpiece is processed, and greatly improves the processing precision and efficiency of the shaft workpiece.

Description

Double-end centre bore grinds machine

The technical field is as follows:

the utility model belongs to the technical field of machine tools, and particularly relates to a double-head center hole grinding machine.

Background art:

when machining workpieces such as shaft products, it is often necessary to perform center hole grinding. The traditional method for grinding the center hole of the workpiece is mainly carried out by pure manual or manual auxiliary equipment: the pure manual mode is not only low in efficiency and labor consumption, but also low in grinding precision and not beneficial to batch processing. In the manual auxiliary equipment mode, a workpiece is generally clamped by a mechanical arm, then a drill bit is driven to rotate by a machine, and the central hole of the clamped workpiece is ground by the rotating drill bit. However, the center hole of the machined shaft product has roundness error, and the machined shaft product has technical problems of poor roundness, poor smoothness and poor coaxiality of the outer circle.

The utility model content is as follows:

the utility model aims to provide a double-head center hole grinding machine which can improve the roundness error of a center hole and solve the technical problems of poor roundness, smoothness and coaxiality of an outer circle generated after a shaft workpiece is machined.

The utility model is realized by the following steps:

a guide rail is arranged on the workbench, a first grinding head and a second grinding head are oppositely arranged on the guide rail, a first top point driven to rotate by the first grinding head is arranged on the first grinding head, a second top point driven to rotate by the second grinding head is arranged on the second grinding head, the central lines of the first top point and the second top point are overlapped, the first grinding head or the second grinding head is driven by a driving mechanism to move along the guide rail, a supporting plate is arranged on the first grinding head or the second grinding head, a workpiece bracket is arranged on the supporting plate, and the supporting plate and the workpiece bracket move along with the first grinding head or the second grinding head.

In the double-head center hole grinding machine, the workpiece bracket comprises a first support frame and a second support frame, and grooves for accommodating workpieces are arranged on the first support frame and the second support frame.

In foretell double-end centre bore grinds machine, first support frame is provided with first vertical board including being the first base of L shape on the lateral surface of vertical portion including the horizontal part setting of first base on the layer board, the second support frame is provided with the vertical board of second including being the second base of L shape on the lateral surface of vertical portion on the layer board, the horizontal part setting of second base, first support frame, second support frame mirror symmetry set up, the recess sets up on first vertical board, the vertical board of second.

In foretell double-end centre bore grinds machine, be provided with rectangular shape hole on the layer board be provided with first bar opening hole on the horizontal part of first base, second base, first bar opening hole on first base, the second base sets up along rectangular shape hole, and first base, second base position on rectangular shape hole are adjustable and then the distance between first base, the second base is adjustable.

In the double-head center hole grinding machine, the first vertical plate and the second vertical plate are provided with second shape opening holes, and the first vertical plate and the second vertical plate are adjustable in upper and lower positions on the first base and the second base through the second shape opening holes.

In the above double-head center hole grinding machine, the first grinding head is slidably disposed on the guide rail through the first sliding plate, the second grinding head is slidably disposed on the guide rail through the second sliding plate, one end of the supporting plate is disposed on the first sliding plate or the second sliding plate, and the other end of the supporting plate is suspended.

In foretell double-end centre bore grinds machine, actuating mechanism includes lead screw fixed plate, lead screw and screw-nut, the lead screw fixed plate sets firmly in the one end of guide rail, and the one end setting of lead screw is on the lead screw fixed plate, screw-nut sets firmly on first slide or second slide and the spiro union is on the lead screw, the lead screw is rotated by driving motor drive and then drives first slide or second slide reciprocating motion.

In the double-head center hole grinding machine, the workbench is fixedly arranged on the rack, the machine cover is arranged on the rack, and the workbench, the guide rail, the first grinding head and the second grinding head are all arranged in the machine cover.

In the double-head central hole grinding machine, the actions of the first grinding head, the second grinding head and the driving mechanism are controlled by the controller, the controller is positioned in the rack, a control panel is arranged on the machine cover, and the control panel is electrically connected with the controller.

In the double-head center hole grinding machine, the bottom surface of the frame is provided with supporting feet or/and a roller with a brake.

Compared with the prior art, the utility model has the outstanding advantages that:

1. the center points can be used for effectively grinding the center holes at the two ends of the shaft-type workpiece, so that the roundness error of the center holes is greatly improved, the technical problems of poor roundness, smoothness, coaxiality and the like of an outer circle generated after the shaft-type workpiece is machined are solved, and the machining precision and efficiency of the shaft-type workpiece are greatly improved;

2. the distance between the first support frame and the second support frame is adjustable, the height of the first support frame is adjustable, the first support frame and the second support frame can be suitable for grinding shaft workpieces with different lengths and different diameters, the universality is greatly improved, and the adjustment is quick and convenient;

3. the rollers are convenient to carry, and the supporting legs are favorable for supporting, so that the equipment is stably arranged on the bottom surface.

Description of the drawings:

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the main part of the present invention;

fig. 3 is a partially enlarged schematic view of fig. 2.

In the figure: 1. a work table; 2. a guide rail; 3. a first polishing head; 4. a second polishing head; 5. a support plate; 6. a V-shaped groove; 7. a first base; 8. a first vertical plate; 9. a second base; 10. a second vertical plate; 11. a strip-shaped hole; 12. a first bar-shaped open hole; 13. a second open aperture; 14. a first slide plate; 15. a second slide plate; 16. a screw rod fixing plate; 17. a screw rod; 18. a frame; 19. a hood; 20. a control panel; 21. support the feet.

The specific implementation mode is as follows:

the utility model will now be further described by way of specific examples, with reference to figures 1 to 3:

a double-head center hole grinding machine comprises a workbench 1, wherein a guide rail 2 is arranged on the workbench 1, a first grinding head 3 and a second grinding head 4 are oppositely arranged on the guide rail 2, a first tip (not shown) driven by the first grinding head 3 to rotate is arranged on the first grinding head 3, a second tip (not shown) driven by the second grinding head 4 to rotate is arranged on the second grinding head 4, the center lines of the first tip and the second tip are overlapped, the first grinding head 3 or the second grinding head 4 is driven by a driving mechanism to move along the guide rail 2, a supporting plate 5 is arranged on the first grinding head 3 or the second grinding head 4, a workpiece bracket is arranged on the supporting plate 5, and the supporting plate 5 and the workpiece bracket move along with the first grinding head 3 or the second grinding head 4. The first tip and the second tip are six-edge or four-edge hard alloy tips.

When the workpiece needs to be ground, the workpiece is clamped on the workpiece bracket through the mechanical arm, the driving mechanism drives one of the first grinding head 3 and the second grinding head 4 to move towards the other grinding head in an opposite direction, and the other grinding head is fixed until the first center and the second center are connected to two ends of the workpiece.

As shown in fig. 2 and 3, the workpiece bracket includes a first support frame and a second support frame, and grooves for accommodating workpieces are provided on the first support frame and the second support frame, and in this embodiment, the grooves are V-shaped grooves 6. The center lines of the V-shaped grooves 6 on the first support frame and the second support frame are superposed with the center lines of the first tip and the second tip.

Specifically, first support frame is including the first base 7 that is L shape, and the horizontal part setting of first base 7 is provided with first vertical board 8 on layer board 5, the lateral surface of vertical portion, the second support frame is including the second base 9 that is L shape, and the horizontal part setting of second base 9 is provided with the vertical board 10 of second on layer board 5, the lateral surface of vertical portion, first support frame, second support frame mirror symmetry set up, the recess sets up on first vertical board 8, the vertical board 10 of second.

In order to be suitable for grinding workpieces with different lengths, the supporting plate 5 is provided with a strip-shaped hole 11, the horizontal parts of the first base 7 and the second base 9 are provided with a first strip-shaped open hole 12, the first strip-shaped open holes 12 in the first base 7 and the second base 9 are arranged along the strip-shaped hole 11, and the positions of the first base 7 and the second base 9 in the strip-shaped hole 11 can be adjusted, so that the distance between the first base 7 and the second base 9 can be adjusted. During adjustment, only screws for fixing the first base 7 and the second base 9 need to be loosened, so that the adjustment is convenient, and the universality is high.

In order to be suitable for grinding workpieces with different diameters, the first vertical plate 8 and the second vertical plate 10 are provided with second opening holes 13, and the first vertical plate 8 and the second vertical plate 10 are adjustable in vertical position on the first base 7 and the second base 9 through the second opening holes 13, so that the vertical height of the V-shaped groove 6 is further achieved. During adjustment, only screws for fixing the first vertical plate 8 and the second vertical plate 10 need to be loosened, so that the adjustment is convenient, and the universality is high.

As shown in fig. 2, the first polishing head 3 is slidably mounted on the guide rail 2 via a first slide plate 14, the second polishing head 4 is slidably mounted on the guide rail 2 via a second slide plate 15, and one end of the carrier 5 is mounted on the first slide plate 14 or the second slide plate 15, and the other end thereof is suspended. In this embodiment, the pallet 5 is fixed to the second slide 15. The supporting plate 5 is provided with a strip-shaped adjusting hole, and the long axis of the strip-shaped adjusting hole is parallel to the central lines of the first tip and the second tip. The position of the supporting plate 5 on the second sliding plate 15 is adjusted by screws through the strip-shaped adjusting holes.

As shown in fig. 2, the driving mechanism includes a screw rod fixing plate 16, a screw rod 17 and a screw rod nut, the screw rod fixing plate 16 is fixedly disposed at one end of the guide rails 2, one end of the screw rod 17 is disposed on the screw rod fixing plate 16, and the screw rod 17 is disposed between the two guide rails 2. The screw rod nut is fixedly arranged on the first sliding plate 14 or the second sliding plate 15 and is in threaded connection with the screw rod 17, and the screw rod 17 is driven by the driving motor to rotate so as to drive the first sliding plate 14 or the second sliding plate 15 to reciprocate.

For example, when the driving mechanism drives the first polishing head 3 to move, the second polishing head 4 is fixed. When the workpiece is not placed on the workpiece carrier, the drive motor drives the lead screw 17 to rotate, so that the first polishing head 3 moves in a direction away from the second polishing head 4. When the grinding is needed, the driving motor drives the screw rod 17 to rotate, so that the first grinding head 3 moves along the direction close to the second grinding head 4 until the first center and the second center respectively abut against two end parts of the workpiece.

As shown in fig. 1, the table 1 is fixed to a frame 18, a housing 19 is provided in the frame 18, and the table 1, the guide rail 2, the first polishing head 3, and the second polishing head 4 are all housed in the housing 19. The hood 19 is arranged to ensure safe production. The top of the hood 19 is provided with a window, so that a manipulator can conveniently clamp a workpiece, and the front side surface of the hood 19 is provided with a push door, so that the maintenance and the observation are convenient.

The actions of the first grinding head 3, the second grinding head 4 and the driving mechanism are all controlled by a controller, the controller is positioned in the frame 18, a control panel 20 is arranged on the cover 19, and the control panel 20 is electrically connected with the controller. The control panel 20 is located on the front side of the hood 19 for easy operation.

As shown in fig. 1, the bottom surface of the frame 18 is provided with support feet 21 or/and rollers (not shown) with brakes. The height of the supporting foot 21 is adjustable, and the whole height of the grinding machine can be adjusted. When the grinder needs to be moved, the height of the supporting legs 21 is adjusted to be lower than that of the rollers, and at the moment, the rollers are in contact with the ground to push the grinder to a specified position. After the transportation is finished, the height of the supporting legs 21 is adjusted again to enable the supporting legs to be supported on the bottom surface, and the roller can be in a suspended state at the moment.

The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so: all equivalent changes made according to the shape, structure and principle of the utility model are covered by the protection scope of the utility model.

Claims

1. The utility model provides a double-end centre bore grinds machine which characterized in that: the grinding head comprises a workbench (1), wherein a guide rail (2) is arranged on the workbench (1), a first grinding head (3) and a second grinding head (4) are oppositely arranged on the guide rail (2), a first top which is driven to rotate by the first grinding head (3) is arranged on the first grinding head, a second top which is driven to rotate by the second grinding head is arranged on the second grinding head (4), the central lines of the first top and the second top are overlapped, the first grinding head (3) or the second grinding head (4) is driven by a driving mechanism to move along the guide rail (2), a supporting plate (5) is arranged on the first grinding head (3) or the second grinding head (4), a workpiece bracket is arranged on the supporting plate (5), and the supporting plate (5) and the workpiece bracket move along with the first grinding head (3) or the second grinding head (4).

2. A double-ended central hole grinding machine according to claim 1, wherein: the workpiece bracket comprises a first support frame and a second support frame, and grooves for accommodating workpieces are formed in the first support frame and the second support frame.

3. A double-ended central hole grinding machine according to claim 2, wherein: the first support frame is provided with first vertical board (8) including being first base (7) of L shape, the horizontal part setting of first base (7) on layer board (5), on the lateral surface of vertical portion, the second support frame is provided with second vertical board (10) including second base (9) that are L shape, the horizontal part setting of second base (9) on layer board (5), on the lateral surface of vertical portion, first support frame, second support frame mirror symmetry set up, the recess sets up on first vertical board (8), vertical board of second (10).

4. A double-ended central hole grinding machine according to claim 3, wherein: the supporting plate is characterized in that a strip-shaped hole (11) is formed in the supporting plate (5), a first strip-shaped opening hole (12) is formed in the horizontal portion of the first base (7) and the second base (9), the first strip-shaped opening hole (12) in the first base (7) and the second base (9) is formed along the strip-shaped hole (11), and the positions of the first base (7) and the second base (9) in the strip-shaped hole (11) are adjustable, so that the distance between the first base (7) and the second base (9) is adjustable.

5. A double-ended central hole grinding machine according to claim 3, wherein: and second shape opening holes (13) are formed in the first vertical plate (8) and the second vertical plate (10), and the first vertical plate (8) and the second vertical plate (10) are adjustable in upper and lower positions on the first base (7) and the second base (9) through the second shape opening holes (13).

6. A double-ended central hole grinding machine according to claim 1, wherein: the first grinding head (3) is arranged on the guide rail (2) in a sliding mode through the first sliding plate (14), the second grinding head (4) is arranged on the guide rail (2) in a sliding mode through the second sliding plate (15), one end of the supporting plate (5) is arranged on the first sliding plate (14) or the second sliding plate (15), and the other end of the supporting plate is arranged in a suspended mode.

7. A double-ended central hole grinding machine according to claim 1, wherein: the driving mechanism comprises a screw rod fixing plate (16), a screw rod (17) and a screw rod nut, the screw rod fixing plate (16) is fixedly arranged at one end of the guide rail (2), one end of the screw rod (17) is arranged on the screw rod fixing plate (16), the screw rod nut is fixedly arranged on the first sliding plate (14) or the second sliding plate (15) and is in threaded connection with the screw rod (17), and the screw rod (17) is driven by a driving motor to rotate so as to drive the first sliding plate (14) or the second sliding plate (15) to move in a reciprocating mode.

8. A double-ended central hole grinding machine according to claim 1, wherein: the grinding machine is characterized in that the workbench (1) is fixedly arranged on a rack (18), a machine cover (19) is arranged on the rack (18), and the workbench (1), the guide rail (2), the first grinding head (3) and the second grinding head (4) are all arranged in the machine cover (19).

9. A double-ended central hole grinding machine according to claim 8, wherein: the actions of the first grinding head (3), the second grinding head (4) and the driving mechanism are controlled by a controller, the controller is positioned in the rack (18), a control panel (20) is arranged on the hood (19), and the control panel (20) is electrically connected with the controller.

10. A double-ended central hole grinding machine according to claim 8, wherein: the bottom surface of the frame (18) is provided with supporting feet (21) or/and a roller with a brake.