Workpiece positioning support device and bearing superfinishing machine equipped with the device

Abstract

The utility model relates to bearing superfinishing technical field, especially a workpiece positioning support device and the bearing superfinishing machine equipped with the device. In order to improve the machining efficiency of bearing workpiece, the utility model provides a kind of workpiece positioning support device, it includes support mechanism and lifting mechanism, the support mechanism includes bearing support seat, centering piece and support bearing, the centering piece is fixedly installed on the bearing support seat, the support bearing is placed on the centering piece, and the support outer ring of the support bearing rotates around the centering piece;The lifting mechanism includes lifting drive part and lifting support plate, the lifting support plate is installed on the lifting drive part and makes lifting movement under the driving of the lifting drive part;The support mechanism is installed on the lifting support plate by the bearing support seat. The utility model workpiece positioning support device is matched with automatic feeding device and can complete automatic feeding, which can effectively improve the machining efficiency of bearing workpiece.

Description

Technical Field

[0001] This utility model relates to the field of bearing ultra-precision machining technology, and in particular to a workpiece positioning support device and a bearing ultra-precision machine equipped with the device. Background Technology

[0002] When machining the outer ring of a bearing workpiece using a bearing ultra-precision machine, the bearing workpiece needs to be positioned to ensure the stability of its rotation.

[0003] Existing ultraprecision bearing machines typically use fixed bearing supports to position bearing workpieces. However, these fixed supports must be installed and fixed within the machine's working area to support and position the bearing workpiece. This compresses the space available for other ultraprecision units and automatic feeding units, hindering other ultraprecision processing and automatic feeding, thus impacting the machining efficiency of bearing workpieces. Furthermore, to achieve automatic feeding, infeed and discharge positions must be maintained within the machine's working area. This necessitates a dual-bearing support scheme for fixed bearing supports, which can lead to unstable rotation of bearing workpieces during ultraprecision machining of large-diameter bearings, resulting in low machining accuracy. Utility Model Content

[0004] To improve the processing efficiency of bearing workpieces, this utility model proposes a workpiece positioning and support device. The workpiece positioning and support device includes a support mechanism and a lifting mechanism. The support mechanism includes a bearing support seat, a centering component, and a support bearing. The centering component is fixedly mounted on the bearing support seat, and the support bearing is sleeved on the centering component, with its outer ring rotating around the centering component. The lifting mechanism includes a lifting drive component and a lifting support plate. The lifting support plate is mounted on the lifting drive component and moves up and down under its drive. The support mechanism is mounted on the lifting support plate via the bearing support seat. In the ultra-precision machining process of bearing workpieces using a bearing ultra-precision machine equipped with the workpiece positioning and support device of this utility model, the lifting drive mechanism first lowers the support mechanism to make way for the automatic feeding device, facilitating automatic feeding. Then, the lifting drive mechanism raises the support mechanism to support the bearing workpiece, allowing the ultra-precision machine to perform ultra-precision processing. After ultra-precision processing, the lifting drive mechanism lowers the support mechanism, and the automatic feeding device removes the finished bearing workpiece and sends the unprocessed bearing workpiece to the processing position, completing the replacement of the bearing workpiece. Therefore, the workpiece positioning and support device of this utility model, in conjunction with the automatic feeding device, can achieve automatic feeding, effectively improving the processing efficiency of bearing workpieces.

[0005] Preferably, the bearing support seat includes a horizontal block and a support head, the horizontal block and the support head being connected in an L-shape, and the horizontal block having an adjustment through hole for mounting an adjusting bolt; the centering component is fixedly mounted on the top of the support head. Thus, when performing ultra-precision processing on bearing workpieces of different specifications, the installation position of the bolt in the adjustment through hole can be adjusted as needed, i.e., the distance between the support head on the bearing support seat and the ultra-precision unit on the bearing ultra-precision machine can be adjusted, thus expanding the applicability of this workpiece positioning support device. Furthermore, the adjustment through hole is an elongated through hole. Thus, during adjustment, only the adjusting bolt needs to be slid and moved within the adjustment through hole, making the adjustment operation simple and convenient.

[0006] Preferably, the centering component is a centering expansion sleeve, and the support bearing is sleeved on the centering expansion sleeve and locked in place by a locking bolt inserted into the centering expansion sleeve. Thus, by using a positioning expansion sleeve as the centering component, the support bearing can be fixed to the centering expansion sleeve simply by inserting the locking bolt into it, making assembly simple and convenient.

[0007] Preferably, the workpiece positioning support device includes a sliding mechanism, which is mounted on the lifting support plate and connected to the support mechanism, driving the support mechanism to move laterally on the lifting support plate. This allows the sliding mechanism to drive the support mechanism to move laterally on the lifting support plate during automatic feeding, preventing the workpiece positioning support device from affecting feeding and reducing the processing efficiency of the bearing workpiece. It also allows for lateral adjustment of the distance between the support head in the support mechanism and the ultra-precision unit in the bearing ultra-precision machine, meeting the processing needs of bearing workpieces of different specifications and expanding the applicability of the workpiece positioning support device. Further, the sliding mechanism includes a slide block, a guide rail, and a sliding drive component. The slide block is mounted and fixed on the lifting support plate, and a sliding groove is provided on the slide block. The guide rail is located between the slide block and the bearing support seat and is engaged in the sliding groove, and the guide rail is connected to the bearing support seat. The sliding drive component is mounted and fixed on the lifting support plate, and the sliding drive rod of the sliding drive component is connected to the bearing support seat and drives the bearing support seat to move the guide rail along the extension direction of the sliding groove. In this way, the sliding mechanism is composed of a slide block, a guide rail, and a sliding drive component, which has a simple structure and is easy to control.

[0008] Preferably, the lifting mechanism includes a lifting support base, on which a linear bearing connected to the lifting support plate is mounted. The lifting drive component is fixedly mounted on the lifting support base, and the lifting drive rod of the lifting drive component is connected to the lifting support plate. Thus, during the lifting process, the linear bearing and the lifting drive rod of the lifting drive component cooperate to support the lifting support plate and the support mechanism mounted on the lifting support plate, improving the lifting smoothness of the lifting mechanism and the support stability of the support mechanism, thereby improving the support stability and machining accuracy of the bearing workpiece. Further, the lifting support plate is provided with a waist-shaped connecting groove, and a locking protrusion is provided on the inner wall of the waist-shaped connecting groove; the free end of the lifting drive rod is provided with a lifting connector, which includes a lifting connecting rod, a positioning retaining ring, and a positioning locking head. The lifting connecting rod is linearly connected to the lifting drive rod, and the positioning retaining ring and the positioning locking head are disposed on the lifting connecting rod and locked on both sides of the locking protrusion. This design facilitates the connection between the lifting drive rod and the lifting support plate, and allows for some self-adaptation between the lifting connector and the lifting support plate during lifting, preventing the lifting drive rod from jamming and affecting the working stability of the lifting mechanism, or even the processing efficiency of the bearing workpiece. More preferably, the lifting support base is provided with a lifting drive groove for installing the lifting drive component. By installing and fixing the lifting drive component in the lifting drive groove on the lifting support base, the working stroke of the linear bearing can be shortened while ensuring the extension and retraction stroke of the lifting drive rod, thus reducing the production cost of this workpiece positioning support device.

[0009] Furthermore, this utility model also proposes a bearing ultra-precision machine, which is equipped with any of the aforementioned workpiece positioning and support devices. Thus, when machining bearing workpieces using the bearing ultra-precision machine equipped with the aforementioned workpiece positioning and support device, automatic feeding can be achieved by cooperating with the workpiece support device and an automatic feeding device, thereby improving the machining efficiency of bearing workpieces. Attached Figure Description

[0010] Figure 1 This is a first-view structural schematic diagram of the workpiece positioning and support device of this utility model;

[0011] Figure 2 This is a second-view structural diagram of the workpiece positioning support device of this utility model when the cover plate is removed. Detailed Implementation

[0012] Below, in conjunction with Figure 1 and 2 This invention relates to a workpiece positioning support device and a bearing ultraprecision machine equipped with the device.

[0013] like Figure 1 and 2As shown, the workpiece positioning support device of this utility model includes a support mechanism and a lifting mechanism, with the support mechanism located above the lifting mechanism and capable of lifting and lowering under the drive of the lifting mechanism. The support mechanism includes a bearing support seat 11, a centering component 12, and a support bearing 13. The centering component 12 is mounted and fixed on the bearing support seat 11, and the support bearing 13 is sleeved on the centering component 12, with the outer ring 131 of the support bearing 13 rotating around the centering component 12. Preferably, the bearing support seat 11 includes a horizontal block 111 and a support head 112, with the horizontal block 111 and the support head 112 connected in an L-shape. The horizontal block 111 has an adjustment through hole 1111 for mounting an adjustment bolt (not shown in the figure); the centering component 12 is mounted and fixed on the top of the support head 112. Thus, when performing ultra-precision processing on bearing workpieces of different specifications (not shown in the figure), the installation position of the bolt in the adjustment through hole 1111 can be adjusted as needed, that is, the distance between the support head 112 on the bearing support seat 11 and the ultra-precision unit on the bearing ultra-precision machine can be adjusted, which can expand the application range of the workpiece positioning support device of this utility model. Preferably, the adjustment through hole 1111 is an elongated through hole. In this way, during adjustment, it is only necessary to slide the adjustment bolt in the adjustment through hole 1111, and the adjustment operation is simple and convenient. Preferably, the adjustment nut 113 used in conjunction with the adjustment bolt is a T-nut, and the adjustment nut 113 is locked in the adjustment through hole 1111 to prevent the adjustment nut 113 from being loosened by force during processing, which would affect the processing accuracy of the bearing workpiece. Preferably, the centering component 12 is a centering expansion sleeve, the support bearing 13 is sleeved on the centering expansion sleeve, and is locked and fixed by the locking bolt 14 inserted in the centering expansion sleeve. In this way, by using the positioning expansion sleeve as the centering component 12, the support bearing 13 can be fixed to the centering expansion sleeve simply by inserting the locking bolt 14 into the centering expansion sleeve, making assembly simple and convenient.

[0014] like Figure 1 and 2As shown, the lifting mechanism includes a lifting drive component 21 and a lifting support plate 22. The lifting support plate 22 is mounted on the lifting drive component 21 and moves up and down under the drive of the lifting drive component 21. The support mechanism is mounted on the lifting support plate 22 via a bearing support seat 11. Preferably, the lifting mechanism includes a lifting support seat 23, on which a linear bearing 24 connected to the lifting support plate 22 is provided. The lifting drive component 21 is mounted and fixed on the lifting support seat 23, and the lifting drive rod 211 of the lifting drive component 21 is connected to the lifting support plate 22. In this way, during the lifting process, the linear bearing 24 and the lifting drive rod 211 of the lifting drive component 21 cooperate to support the lifting support plate 22 and the support mechanism mounted on the lifting support plate 22, which can improve the lifting smoothness of the lifting mechanism and the support stability of the support mechanism, thereby improving the support stability and machining accuracy of the bearing workpiece. Preferably, two linear bearings 24 are provided on the lifting support seat 23. In this way, the two linear bearings 24 and the lifting drive rod 211 of the lifting drive component 21 form a tripod when supporting the lifting support plate 22, which can effectively improve the support stability of the support mechanism located on the lifting support plate 22, and further improve the machining accuracy of the bearing workpiece. Preferably, the lifting support plate 22 is provided with a waist-shaped connecting groove 221, and the inner wall of the waist-shaped connecting groove 221 is provided with a locking protrusion 2211; the free end of the lifting drive rod 211 is provided with a lifting connector 212, which includes a lifting connecting rod 2121, a positioning retaining ring 2122 and a positioning locking head 2123. The lifting connecting rod 2121 is linearly connected to the lifting drive rod 211, and the positioning retaining ring 2122 and the positioning locking head 2123 are provided on the lifting connecting rod 2121 and locked on both sides of the locking protrusion 2211. This design facilitates the connection between the lifting drive rod 211 of the lifting drive component 21 and the lifting support plate 22, while also allowing the lifting connector 212 and the lifting support plate 22 to self-adapt during the lifting process. This prevents the lifting drive rod 211 from jamming, which could affect the working stability of the lifting mechanism and even the processing efficiency of the bearing workpiece. Preferably, the lifting support base 23 is provided with a lifting drive groove 231 for installing the lifting drive component. By installing and fixing the lifting drive component 21 in the lifting drive groove 231 on the lifting support base 23, the working stroke of the linear bearing 24 can be shortened while ensuring the extension and retraction stroke of the lifting drive rod 211 of the lifting drive component 21, thereby reducing the production cost of the workpiece positioning support device of this invention. Preferably, the lifting drive groove 231 is located at one corner of the lifting support base 23. This allows the lifting drive component 21 to be placed directly into the lifting drive groove 231 from the side, making assembly simple and convenient.Preferably, the lifting support 23 has a connecting through hole 232 on its side wall. When the lifting support 23 is installed on the side of the bearing ultraprecision machine by connecting bolts (not shown in the figure) inserted into the connecting through hole 232, the support head 112 on the bearing support seat 11 in the support mechanism is close to the bearing ultraprecision machine and located below the ultraprecision unit of the bearing ultraprecision machine. In this way, during the operation of the bearing ultraprecision machine, the workpiece positioning support device of this utility model is relatively fixed to the bearing ultraprecision machine and located below the ultraprecision unit, which facilitates the workpiece positioning support device of this utility model to support and position the bearing workpiece.

[0015] like Figure 1 and 2 As shown, the workpiece positioning support device of this utility model also includes a sliding mechanism. This sliding mechanism is installed on the lifting support plate 22 and connected to the support mechanism, driving the support mechanism to move laterally on the lifting support plate 22. In this way, the sliding mechanism can be used to drive the support mechanism to move laterally on the lifting support plate 22 during automatic feeding, avoiding interference with feeding and reducing the processing efficiency of bearing workpieces. Furthermore, the distance between the support head 112 in the support mechanism and the ultra-precision unit in the bearing ultra-precision machine can be adjusted laterally to meet the processing needs of bearing workpieces of different specifications, thus expanding the applicability of the workpiece positioning support device of this utility model. Preferably, the sliding mechanism includes a slide block 31, a guide rail 32, and a sliding drive component 33. The slide block 31 is mounted and fixed on the lifting support plate 22, and a sliding groove (not shown in the figure) is provided on the slide block 31. The guide rail 32 is located between the slide block 31 and the bearing support seat 11 and is engaged in the sliding groove, and the guide rail 32 is connected to the bearing support seat 11. The sliding drive component 33 is mounted and fixed on the lifting support plate 22, and the sliding drive rod 331 of the sliding drive component 33 is connected to the bearing support seat 11 and drives the bearing support seat 11 to drive the guide rail 32 to slide along the extension direction of the sliding groove. In this way, the sliding mechanism composed of the slide block 31, the guide rail 32, and the sliding drive component 33 has a simple structure and is easy to control. Preferably, a cover plate 34 is provided on both sides of the slide block 31 and the guide rail 32, which covers both sides of the slide block 31 and the guide rail 32. In this way, during the processing, the shield 34 can be used to block the chips generated during processing, preventing chips from falling onto the slide 31 and guide rail 32, affecting the sliding effect of the sliding mechanism, or even damaging the sliding mechanism, thus affecting the service life of the workpiece positioning support device of this utility model. Preferably, the shield 34 is installed and fixed to both sides of the horizontal block 111 in the bearing support seat 11 by fixing bolts (not shown in the figure), which is simple and convenient to fix. Preferably, the shield 34 is a three-bend plate. Such a shield 34 is not only easy to install and fix to the bearing support seat 11, but also can effectively shield the slide 31 and guide rail 32, and also facilitates the chip to slide off the shield 34, preventing the chip from accumulating on the shield 34.

[0016] In the specific implementation of the workpiece positioning support device of this utility model, another sliding mechanism can be used, wherein the guide rail and the sliding drive component are installed and fixed on the lifting support plate, the slide block is provided with a sliding groove for locking the guide rail and the slide block can slide along the extension direction of the guide rail, the sliding drive rod of the sliding drive component is connected to the bearing support seat 11 and drives the support mechanism to slide along the extension direction of the guide rail through the slide block.

[0017] In addition, when implementing the workpiece positioning support device of this utility model, the lifting drive component 21 and the sliding drive component 33 can both be pneumatic cylinders or hydraulic cylinders.

[0018] In the ultra-precision machining process of bearing workpieces using a bearing ultra-precision machine equipped with the workpiece positioning and support device of this utility model, the lifting drive mechanism first lowers the support mechanism to make way for the automatic feeding device, facilitating automatic feeding. Then, the lifting drive mechanism raises the support mechanism to support the bearing workpiece, allowing the ultra-precision machine to perform ultra-precision processing. After ultra-precision processing, the lifting drive mechanism lowers the support mechanism, and the automatic feeding device removes the finished bearing workpiece and sends the unprocessed bearing workpiece to the processing position, completing the replacement of the bearing workpiece. Therefore, the workpiece positioning and support device of this utility model, in conjunction with the automatic feeding device, can achieve automatic feeding, effectively improving the processing efficiency of bearing workpieces.

Claims

1. A workpiece positioning and support device, characterized in that, The workpiece positioning support device includes a support mechanism and a lifting mechanism. The support mechanism includes a bearing support seat, a centering component, and a support bearing. The centering component is installed and fixed on the bearing support seat, and the support bearing is sleeved on the centering component, with the outer ring of the support bearing rotating around the centering component. The lifting mechanism includes a lifting drive component and a lifting support plate. The lifting support plate is installed on the lifting drive component and moves up and down under the drive of the lifting drive component. The support mechanism is mounted on the lifting support plate via the bearing support seat.

2. The workpiece positioning and support device according to claim 1, characterized in that, The bearing support includes a horizontal block and a support head. The horizontal block and the support head are connected in an L-shape, and the horizontal block is provided with an adjustment through hole for installing adjustment bolts. The centering component is installed and fixed on the top of the support head.

3. The workpiece positioning and support device according to claim 2, characterized in that, The adjustment through hole is an elongated through hole.

4. The workpiece positioning and support device according to any one of claims 1-3, characterized in that, The centering component is a centering expansion sleeve, and the support bearing is sleeved on the centering expansion sleeve and locked and fixed by locking bolts inserted in the centering expansion sleeve.

5. The workpiece positioning and support device according to any one of claims 1-3, characterized in that, The workpiece positioning support device includes a sliding mechanism, which is installed on the lifting support plate and connected to the support mechanism to drive the support mechanism to move laterally on the lifting support plate.

6. The workpiece positioning and support device according to claim 5, characterized in that, The sliding mechanism includes a slide block, a guide rail, and a sliding drive component. The slide block is mounted and fixed on the lifting support plate, and a sliding groove is provided on the slide block. The guide rail is located between the slide block and the bearing support seat and is engaged in the sliding groove, and the guide rail is connected to the bearing support seat. The sliding drive component is mounted and fixed on the lifting support plate, and the sliding drive rod of the sliding drive component is connected to the bearing support seat and drives the bearing support seat to drive the guide rail to slide along the extension direction of the sliding groove.

7. The workpiece positioning and support device according to any one of claims 1-3, characterized in that, The lifting mechanism includes a lifting support base, on which a linear bearing connected to the lifting support plate is provided. The lifting drive component is mounted and fixed on the lifting support base, and the lifting drive rod of the lifting drive component is connected to the lifting support plate.

8. The workpiece positioning and support device according to claim 7, characterized in that, The lifting support plate is provided with a waist-shaped connecting groove, and the inner wall of the waist-shaped connecting groove is provided with a locking protrusion; the free end of the lifting drive rod is provided with a lifting connector, which includes a lifting connecting rod, a positioning ring and a positioning head. The lifting connecting rod is linearly connected to the lifting drive rod, and the positioning ring and the positioning head are provided on the lifting connecting rod and locked on both sides of the locking protrusion.

9. The workpiece positioning and support device according to claim 8, characterized in that, The lifting support base is provided with a lifting drive groove for installing the lifting drive component.

10. A bearing ultraprecision machine, characterized in that, The bearing ultraprecision machine is equipped with a workpiece positioning support device as described in any one of claims 1-9.

Images