Bearing drilling apparatus

Abstract

The utility model belongs to bearing processing technical field especially relates to a bearing drilling equipment, it is fixed with dust column in the middle place of the bottom of fixed frame, the lateral wall of dust column is opened to have received the groove, the inboard of received groove is provided with first through -hole, the bottom of fixed frame and the top of dust column all are opened to have first passageway, first passageway is linked with first through -hole, the top of fixed frame is provided with the suction assembly for the first through -hole inside chippings extraction, positioning board, positioning board fixed connection is in the eccentric place of the bottom of fixed frame, compared with prior art, the utility model can switch two kinds of drilling mode, need not frequently change tool just can adapt the processing demand of different aperture, has simplified the operation process, has improved bearing drilling's processing efficiency, has solved the problem that traditional equipment chippings accumulated, avoided chippings to scratch bearing processing surface, improved the sustained operation ability of equipment.

Description

Technical Field

[0001] This utility model belongs to the field of bearing processing technology, and in particular relates to a bearing drilling device. Background Technology

[0002] A bearing is a mechanical component used to support a rotating shaft and reduce its friction. It plays a crucial role in transmitting power, reducing wear, and ensuring smooth operation in various mechanical equipment. Its core structure usually consists of an inner ring, an outer ring, rolling elements, and a cage. By replacing sliding friction with rolling friction, it significantly reduces energy loss. In the bearing manufacturing process, drilling equipment is required to drill holes in the bearing.

[0003] Chinese patent publication number 202422907777.8 discloses a high-efficiency bearing drilling device, including a base plate. A square outer shell is fixedly connected to the top of the base plate. A telescopic rod is fixedly connected to the rear end of the inner side of the square outer shell. A short plate is fixedly connected to the other end of the telescopic rod. The outer wall of the short plate is slidably connected to the bottom front side of the square outer shell. A toothed strip is fixedly connected to the left and right sides of the short plate. A gear is meshed with the opposite side of the toothed strip. A support plate is fixedly connected to the top left and right sides of the base plate. A fixing plate is fixedly connected to the top of the support plate. The telescopic rod drives the short plate to move, thereby driving the gear to rotate. The gear moves with the sliding strip, thus cooperating with the short plate to fix the processed bearing. This can automatically keep the center of the clamped processed bearing in a specific position, saving adjustment time and improving production efficiency.

[0004] However, existing technologies have the following problems when used: 1. Currently, bearing drilling equipment is difficult to switch according to different hole diameter processing requirements. When multiple hole diameters need to be processed, tools need to be changed frequently, which is cumbersome and has low processing efficiency. 2. After drilling, existing drilling equipment tends to accumulate debris in the processing area or tool gaps, which not only scratches the bearing processing surface and reduces processing accuracy, but also aggravates cutting edge wear and reduces the working efficiency of the drilling equipment. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned technical problems by providing a bearing drilling device, comprising: A fixed frame is provided, with a suction column fixedly connected to the middle of the bottom of the fixed frame. The suction column has a receiving groove on its side wall and a first through hole on the inner side of the receiving groove. The bottom of the fixed frame and the top of the suction column are both provided with a first channel, which communicates with the first through hole. The top of the fixed frame is provided with a suction component for extracting debris from the first through hole. A positioning plate is fixedly connected to the bottom eccentric part of the fixing frame. A cutting edge is rotatably provided on one side of the positioning plate. The cutting edge includes an extending cutting part and a retracting cutting part. The extending cutting part is provided at one end of the retracting cutting part. A limiting part for contacting the positioning plate is provided at one end of the retracting cutting part. A second through hole is provided on the side wall of the limiting part. The second through hole matches the first through hole. Drilling is performed through the receiving cutting part, and the debris enters the first channel through the second through hole and the first through hole. When drilling is performed through the expanding cutting part, the cutting edge unfolds, and the debris enters the first channel through the receiving groove. Finally, the debris in the first channel is extracted by the suction assembly.

[0006] Furthermore, the suction assembly includes a conveying rod, which is fixedly connected to the top of the mounting frame. The inner cavity of the conveying rod is provided with a second channel, which communicates with the first channel. The top of the conveying rod is connected to a storage tube, and a rotating frame is rotatably provided on the outer side wall of the storage tube. The outer side of the rotating frame is connected to a dust suction unit.

[0007] Furthermore, a drive rod is fixedly connected to the top of the storage tube.

[0008] Furthermore, the side wall of the positioning plate is provided with an installation groove, and a support column is fixedly installed in the inner cavity of the installation groove.

[0009] Furthermore, a rotating cylinder is fixedly connected to one end of the blade, and the rotating cylinder is rotatably disposed on the outside of the support column.

[0010] Furthermore, one end of the limiting part is provided with a protrusion, which matches the receiving groove.

[0011] Furthermore, the extended cutting part, the housing cutting part, the protrusion part, and the limiting part are integrally made of polycrystalline cubic boron nitride material.

[0012] Furthermore, a conical head is fixedly connected to the bottom of the positioning plate.

[0013] Furthermore, the positioning plate and the blade are in three sets, and are evenly distributed in a ring at the bottom of the fixing frame.

[0014] Compared with the prior art, the bearing drilling equipment of this utility model has the following advantages: 1. By integrating the extended cutting part and the retractable cutting part into the blade, and in conjunction with the drive rod to drive the fixed frame to rotate in both directions, two drilling modes can be switched. This eliminates the need for frequent tool changes and adapts to the processing requirements of different hole diameters, simplifying the operation process and improving the processing efficiency of bearing drilling. 2. When the receiving cutting part is working, the chips enter the channel through the second through hole and the first through hole. When the expanding cutting part is working, the chips enter the channel through the receiving groove. Combined with the negative pressure adsorption effect of the suction component, the problem of chip accumulation in traditional equipment is solved, the chip damage to the bearing machining surface is avoided, and the continuous operation capability of the equipment is improved. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a structural diagram of the fixing frame of this utility model; Figure 4 This is a three-dimensional structural diagram of the blade of this utility model; Figure 5 This is a partial structural diagram of the present invention; Figure 6 This is a top view of the blade structure of this utility model.

[0016] The markings in the diagram are as follows: 100. Fixing frame; 110. Suction column; 111. Receiving groove; 112. First through hole; 113. First channel; 120. Positioning plate; 121. Support column; 122. Mounting groove; 130. Blade; 131. Extended cutting part; 132. Receiving cutting part; 133. Protrusion; 134. Limiting part; 135. Second through hole; 140. Rotating cylinder; 150. Conical head; 200. Conveying rod; 210. Second channel; 220. Receiving cylinder; 221. Rotating frame; 222. Disc; 223. Connecting rod; 230. Suction part; 240. Drive rod. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0018] It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connection arrangements between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0019] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0021] like Figures 1-6 As shown, a bearing drilling device includes: A fixed frame 100 is fixedly connected to a suction column 110 at the bottom center. The suction column 110 has a receiving groove 111 on its side wall and a first through hole 112 on its inner side. The bottom of the fixed frame 100 and the top of the suction column 110 are both provided with a first channel 113, which communicates with the first through hole 112. The top of the fixed frame 100 is provided with a suction assembly for extracting debris from the first through hole 112. The positioning plate 120 is fixedly connected to the bottom eccentric part of the fixing frame 100. A cutting edge 130 is rotatably provided on one side of the positioning plate 120. The cutting edge 130 includes an extended cutting part 131 and a retractable cutting part 132. The extended cutting part 131 is provided at one end of the retractable cutting part 132. A limiting part 134 for contacting the positioning plate 120 is provided at one end of the retractable cutting part 132. A second through hole 135 is provided on the side wall of the limiting part 134. The second through hole 135 matches the first through hole 112. Drilling is performed by receiving the cutting part 132. The debris enters the first channel 113 through the second through hole 135 and the first through hole 112. When drilling is performed by extending the cutting part 131, the cutting edge 130 unfolds and the debris enters the first channel 113 through the receiving groove 111. Finally, the debris in the first channel 113 is extracted by the suction assembly.

[0022] As a preferred example of this utility model, the suction column 110 at the bottom center of the mounting bracket 100 and the top suction assembly form a debris handling structure: when the housing cutting part 132 is working, the debris generated during drilling can enter the first through hole 112 of the suction column 110 through the second through hole 135 on the limiting part 134, and then be extracted by the suction assembly through the first channel 113 on the mounting bracket 100 and the suction column 110; when the mounting bracket 100 is rotated in the reverse direction, it switches to drilling with the extended cutting part 131, the cutting edge 130 unfolds, and the debris is then extracted through the first channel 113 on the mounting bracket 100 and the suction assembly. The dust collection column 110 enters the first channel 113 through the receiving groove 111 on its side wall and is also discharged by the suction assembly. The dual collection path ensures that the debris does not accumulate. Specifically, when rotating in the forward direction, the receiving cutting part 132 contacts the hole to achieve cutting. When rotating in the reverse direction, the cutting edge 130 unfolds due to the centrifugal force and the extended cutting part 131 contacts the inner wall of the hole. At this time, the extended cutting part 131 rubs against the inner wall of the hole, so that the extended cutting part 131 is tightly connected to the hole in the cutting part to achieve normal cutting.

[0023] In the example of this application, the suction assembly includes a conveying rod 200, which is fixedly connected to the top of the fixing frame 100. The inner cavity of the conveying rod 200 is provided with a second channel 210, which communicates with the first channel 113. The top of the conveying rod 200 is connected to a storage cylinder 220. The outer wall of the storage cylinder 220 is rotatably provided with a rotating frame 221 via a sealed bearing. The outer side of the rotating frame 221 is connected to a dust suction part 230. Specifically, the dust suction part 230 is located outside the rotating frame 221, and the rotating frame 221 is located outside the storage cylinder 220. The storage cylinder 220 is provided with a fixing rod connecting the upper and lower ends, so that the rotating frame 221 can rotate outside the fixing rod. This is prior art and will not be described in detail.

[0024] As a preferred example of this utility model, in the suction assembly, the conveying rod 200 is fixed to the top of the fixing frame 100, and the second channel 210 of its inner cavity is connected to the first channel 113, so that the debris collected by the suction column 110 can be smoothly transferred to the top-connected storage cylinder 220. The storage cylinder 220 can centrally store the debris, and the suction part 230 on the side wall of the storage cylinder 220 can enhance the negative pressure in the channel to realize the suction of debris.

[0025] In the example of this application, a drive rod 240 is fixedly connected to the top of the storage tube 220, and the storage tube 220 includes two discs 222 and a connecting rod 223 connecting the two discs 222.

[0026] As a preferred example of this utility model, the drive rod 240 fixed to the top of the storage tube 220 provides a connection carrier for the device to an external power unit. The rotation of components such as the fixed frame 100 and the blade 130 can be controlled by the drive rod 240. Specifically, the external drive unit can be a servo motor, which can drive the drive rod 240 to rotate in both directions.

[0027] In the example of this application, the side wall of the positioning plate 120 is provided with a mounting groove 122, and a support column 121 is fixedly installed in the inner cavity of the mounting groove 122.

[0028] As a preferred example of this utility model, the mounting groove 122 opened on the side wall of the positioning plate 120 can fix the support column 121, laying a stable structural foundation for the rotational installation of the blade 130.

[0029] In the example of this application, a rotating cylinder 140 is fixedly connected to one end of the blade 130, and the rotating cylinder 140 is rotatably disposed on the outside of the support column 121.

[0030] As a preferred example of this utility model, the rotating cylinder 140 at one end of the blade 130 is rotatably sleeved on the outside of the support column 121, thereby realizing the rotational setting of the blade 130 and the positioning plate 120.

[0031] In the example of this application, a protrusion 133 is provided at one end of the limiting part 134, and the protrusion 133 matches the receiving groove 111.

[0032] As a preferred example of this utility model, the protrusion 133 at one end of the limiting part 134 matches the receiving groove 111 of the suction column 110. When the cutting part 132 is being received, the protrusion 133 can be embedded in the receiving groove 111, and the fit between the two can seal the gap.

[0033] In the example of this application, the extended cutting part 131, the receiving cutting part 132, the protrusion 133 and the limiting part 134 are integrally made of polycrystalline cubic boron nitride material.

[0034] As a preferred example of this utility model, the extended cutting part 131, the housing cutting part 132, the protrusion 133 and the limiting part 134 are integrally made of polycrystalline cubic boron nitride material. The high hardness, wear resistance and high temperature resistance of this material improve the cutting performance of the cutting edge 130.

[0035] In the example of this application, a conical head 150 is fixedly connected to the bottom of the positioning plate 120.

[0036] As a preferred example of this utility model, the tapered head 150 at the bottom of the positioning plate 120 is rotated by the positioning plate 120, and the tapered head 150 is used to perform preliminary drilling on the bearing.

[0037] In the example of this application, there are three sets of positioning plates 120 and blades 130, which are evenly distributed in a ring at the bottom of the fixing frame 100.

[0038] As a preferred example of this utility model, three sets of positioning plates 120 and cutting edges 130 are evenly distributed in a ring at the bottom of the fixing frame 100, and the machined surface of the bearing is contacted at multiple points by the evenly distributed positioning plates 120.

[0039] In practical use, the drive rod 240 is moved to the bearing machining station. First, the conical head 150 is aligned with the bearing drilling position. Then, the rotation of the rotating cylinder 140 around the support column 121 switches between two working modes of the cutting edge 130. The outer side is provided with an extended cutting part 131 and a retractable cutting part 132, and the inner side is provided with a protrusion 133. A limiting part 134 is provided at one end near the positioning plate 120 and is movably connected to the rotating cylinder 140. The projection of the retractable cutting part 132 on the conical head 150 extends out of the working area of ​​the conical head 150, while the projection of the extended cutting part 131 on the conical head 150 is located within the working area of ​​the conical head 150. That is, when the fixed frame 100 drives the rotating cylinder 140 to rotate in the forward direction, the cutting edge 130 is in a retracted state under the action of centrifugal force. The retractable cutting part 132 contacts the bearing surface to be machined to perform drilling, while the extended cutting part 131 does not participate in cutting. At the same time, the limiting part 134 and the fixed frame 140 are connected. The positioning plate 120 is in contact with the limiting position, and the protrusion 133 is embedded in the receiving groove 111 of the fixing frame 100 to form a positioning. The generated debris enters the first through hole 112 of the fixing frame 100 through the second through hole 135 of the cutting edge 130, and then flows into the collection cylinder 220 through the first channel 113 and the second channel 210 in the drive rod 240. The dust suction unit 230 continuously generates negative pressure to assist in the suction of debris. When the fixing frame 100 drives the rotating cylinder 140 to rotate in the opposite direction, under the action of centrifugal force, the cutting edge 130 is in an unfolded state, and the extended cutting part 131 contacts the bearing surface to be processed and performs drilling operations. At this time, the extended cutting part 131 rubs against the bearing surface to be processed, and the collecting cutting part 132 does not participate in cutting. The generated debris directly enters the first channel 113 through the receiving groove 111, and then is guided into the collection cylinder 220 through the second channel 210. The dust suction unit 230 maintains negative pressure to assist in the collection of debris, thus completing the use.

[0040] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A bearing drilling device, characterized in that, include: A fixed frame (100) is provided, with a suction column (110) fixedly connected to the middle of its bottom. The suction column (110) has a receiving groove (111) on its side wall and a first through hole (112) on its inner side. The bottom of the fixed frame (100) and the top of the suction column (110) are both provided with a first channel (113), which communicates with the first through hole (112). The top of the fixed frame (100) is provided with a suction assembly for extracting debris from the first through hole (112). A positioning plate (120) is also provided. The plate (120) is fixedly connected to the bottom eccentric part of the fixing frame (100). A blade (130) is rotatably provided on one side of the positioning plate (120). The blade (130) includes an extended cutting part (131) and a retractable cutting part (132). The extended cutting part (131) is provided at one end of the retractable cutting part (132). A limiting part (134) for contacting the positioning plate (120) is provided at one end of the retractable cutting part (132). A second through hole (135) is provided on the side wall of the limiting part (134). The second through hole (135) matches the first through hole (112). Among them, the chips generated by the drilling of the receiving cutting part (132) can enter the first channel (113) through the second through hole (135) and the first through hole (112), and the chips generated by the drilling of the expanding cutting part (131) can enter the first channel (113) through the receiving groove (111).

2. The bearing drilling equipment according to claim 1, characterized in that, The suction assembly includes a delivery rod (200), which is fixedly connected to the top of the mounting frame (100). The inner cavity of the delivery rod (200) is provided with a second channel (210), which is connected to the first channel (113). The top of the delivery rod (200) is connected to a storage cylinder (220), and a rotating frame (221) is rotatably provided on the outer wall of the storage cylinder (220). The outer side of the rotating frame (221) is connected to a dust suction unit (230).

3. The bearing drilling equipment according to claim 2, characterized in that, A drive rod (240) is fixedly connected to the top of the storage tube (220).

4. The bearing drilling equipment according to claim 1, characterized in that, The side wall of the positioning plate (120) is provided with an installation groove (122), and a support column (121) is fixedly installed in the inner cavity of the installation groove (122).

5. The bearing drilling equipment according to claim 4, characterized in that, One end of the blade (130) is fixedly connected to a rotating cylinder (140), which is rotatably disposed on the outside of the support column (121).

6. The bearing drilling equipment according to claim 1, characterized in that, One end of the limiting part (134) is provided with a protrusion (133), which matches the receiving groove (111).

7. A bearing drilling device according to claim 6, characterized in that, The extended cutting part (131), the housing cutting part (132), the protrusion (133) and the limiting part (134) are integrally made of polycrystalline cubic boron nitride material.

8. The bearing drilling equipment according to claim 1, characterized in that, A conical head (150) is fixedly connected to the bottom of the positioning plate (120).

9. A bearing drilling device according to claim 1, characterized in that, The positioning plate (120) and the blade (130) are both in three sets and are evenly distributed in a ring at the bottom of the fixing frame (100).

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