Bearing bush drilling device

Abstract

The utility model discloses a bearing bush drilling device which comprises a drilling machine, a movable base is fixed to the ground on the right side of the drilling machine, an upper movable supporting frame is fixed to the top face of a movable block of the movable base, and the middle of a top plate of the upper movable supporting frame is movably connected with a main shaft through a bearing. The top end of the main shaft extends out of the top face of the top plate of the upper movable supporting frame and is fixedly provided with a rotating plate, an annular sleeve body is fixed to the top face of the rotating plate, a radial extending edge is formed on the inner side wall of the top of the annular sleeve body, and two to-be-machined semicircular bearing bushes form a circular bearing bush to be inserted into the annular sleeve body in a sleeved mode. A flange edge extending in the radial direction is formed on the outer side wall of the top end of the semicircular bearing bush; after two semicircular bearing bushes needing to be machined are spliced and fixed, continuous machining can be achieved, continuous machining can be achieved only through one-time clamping, the clamping frequency is greatly reduced, the manual labor amount is reduced, the machining efficiency is improved, and the large-batch production requirement is met.

Description

Technical field:

[0001] The utility model relates to the technical field of sliding bearings, and more specifically to a bearing bush drilling device. Background technology:

[0002] Sliding bearings generally include a bearing seat and a plurality of bearing shells installed in the bearing seat, and all the bearing shells form a circular sleeve shape;

[0003] Some bearing shells have a radially extending edge formed on one end, and a through hole needs to be processed on the radially extending edge to facilitate the radially extending edge to be fixedly connected to the bearing seat by bolts;

[0004] The processing of the radial extension edge of the existing bearing is generally to fix the support frame on the stand on the drill, fix a plurality of fixed connecting blocks on the upper part of the support frame by bolts, fix the bearing, and then process it. After processing a through hole, it is necessary to disassemble the connecting block, change the position of the bearing, install the connecting block, clamp it, and then process it. The efficiency is very low, the effect is poor, and the manual labor is also large. It is very unsatisfactory for batch processing. Utility model content:

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a bearing drilling device, which can realize continuous processing after splicing and fixing two semicircular bearings that need to be processed, so that it only needs to be clamped once to realize continuous processing, greatly reducing the number of clamping times, reducing manual labor, improving processing efficiency, and being suitable for mass production needs.

[0006] The solution of the utility model to solve the technical problem is:

[0007] A bearing bush drilling device comprises a drilling machine, wherein a movable base is fixed on the ground at the right side of the drilling machine, an upper movable support frame is fixed on the top surface of a movable block of the movable base, a main shaft is movably connected to the middle part of the top plate of the upper movable support frame through a bearing, the top end of the main shaft extends out of the top surface of the top plate of the upper movable support frame and is fixed with a rotating plate, an annular sleeve body is fixed on the top surface of the rotating plate, a radially extending edge is formed on the top inner side wall of the annular sleeve body, two semicircular bearing bushes to be processed form a circular bearing bush inserted in the annular sleeve body, a radially extending flange edge is formed on the top outer side wall of the semicircular bearing bushes, and the bottom surface at the outer side of the flange edge presses against the top surface of the radially extending edge;

[0008] The bottom end of the main shaft extends out of the bottom surface of the top plate of the upper movable support frame and is fixed with a transmission synchronous pulley, a driving servo motor is fixed to the right top surface of the top plate of the upper movable support frame, and the bottom end of the output shaft of the driving servo motor extends out of the bottom surface of the top plate of the upper movable support frame and is fixed with a driving synchronous pulley, and the synchronous belt is tensioned on the transmission synchronous pulley and the driving synchronous pulley.

[0009] An annular guide rail is fixed to the top surface of the top plate of the upper movable support frame around the main shaft, and an annular block is fixed to the bottom surface of the rotating plate, and the lower part of the annular block is inserted into the annular groove formed in the middle of the top surface of the annular guide rail. The annular block and the annular guide rail are used to horizontally support the rotating plate to ensure its horizontal rotation stability.

[0010] The upper movable support frame includes a top plate and a bottom plate, and connecting blocks are fixed to the left and right parts between the top plate and the bottom plate, the top surface of the connecting block is fixed to the bottom surface of the top plate, and the bottom surface of the connecting block is fixed to the corresponding top surface of the bottom plate;

[0011] A moving block is fixed on the middle bottom surface of the bottom plate.

[0012] The movable base includes a fixed bottom plate, and vertical fixed plates are fixed to the left and right parts of the top surface of the fixed bottom plate. The two ends of the transverse moving screw are movably connected to the two vertical fixed plates through bearings. A movable servo motor is fixed to the outer wall of one of the vertical fixed plates. The output shaft of the movable servo motor is connected to the transverse moving screw and drives the transverse moving screw to rotate. The movable block is screwed on the transverse moving screw.

[0013] The front and rear parts of the bottom surface of the bottom plate of the upper movable support frame are fixed with transverse guide blocks, the front and rear parts of the top surface of the fixed bottom plate are fixed with side connecting plates, the left and right ends of the side connecting plates are fixed to the opposite wall surfaces of the two vertical fixed plates, the top surface of the side connecting plates is fixed with upper guide strips extending left and right, and the upper guide strips are inserted into the transverse guide grooves extending left and right formed on the bottom surface of the transverse guide blocks. The upper guide strips and the transverse guide blocks ensure the stability of the horizontal movement of the upper movable support frame and ensure the accuracy of the moving position.

[0014] A plurality of transverse screw-connected through holes are formed on the side wall of the annular sleeve body. All the transverse screw-connected through holes are evenly distributed on the annular sleeve body with the central axis of the annular sleeve body as the center. A transverse adjustment screw is screwed in each transverse screw-connected through hole. The outer end of the transverse adjustment screw extends out of the outer side wall of the annular sleeve body and is fixed with a rotating wheel. The inner end of the transverse adjustment screw extends out of the inner end of the transverse screw-connected through hole and is fixed with a circular limiting plate. The inner end surface of the circular limiting plate is tightly attached to the outer side wall of the corresponding semicircular bearing shell.

[0015] The outstanding effects of the utility model are:

[0016] It can realize continuous processing by splicing and fixing two semicircular bearings that need to be processed, so that it only needs to be clamped once to realize continuous processing, which greatly reduces the number of clamping times, reduces manual labor, improves processing efficiency, and is suitable for mass production needs.

[0017] Moreover, it adopts a plurality of circular limiting plates to support the semicircular bearing shell, thereby ensuring the accurate clamping position of the semicircular bearing shell and ensuring the processing quality. Description of the drawings:

[0018] Figure 1 It is a partial structural schematic diagram of the utility model;

[0019] Figure 2 It is a partial top view of the mobile base of the utility model;

[0020] Figure 3 It is a local top view of the rotating plate. Specific implementation method:

[0021] For example, see Figures 1 to 3 As shown, a bearing bush drilling device comprises a drilling machine 10 (it can adopt the existing known drilling machine 10, and the processing platform of this drilling machine 10 needs to be lowered so that it is lower than the bottom surface of the upper movable support frame 30), a movable base 20 is fixed on the ground at the right side of the drilling machine 10, an upper movable support frame 30 is fixed on the top surface of the movable block 21 of the movable base 20, a main shaft 40 is movably connected to the middle part of the top plate of the upper movable support frame 30 through a bearing, the top end of the main shaft 40 extends out of the top surface of the top plate of the upper movable support frame 30 and is fixed with a rotating plate 41, an annular sleeve body 42 is fixed on the top surface of the rotating plate 41, a radially extending edge 43 is formed on the top inner side wall of the annular sleeve body 42, two semicircular bearing bushes 100 to be processed form a circular bearing bush inserted in the annular sleeve body 42, a radially extending flange edge 101 is formed on the top outer side wall of the semicircular bearing bush 100, and the bottom surface at the outer side of the flange edge 101 is pressed against the top surface of the radially extending edge 43;

[0022] The central axis of the annular sleeve 42 is substantially coincident with the central axis of the main shaft 40 (to ensure the accuracy of the processing position), and the central axis of the circular bearing composed of the two semicircular bearings 100 to be processed is also substantially coincident with the central axis of the annular sleeve 42 .

[0023] A plurality of transverse screw-connected through holes 421 (six transverse screw-connected through holes 421 in this embodiment) are formed on the side wall of the annular sleeve 42. All the transverse screw-connected through holes 421 are evenly distributed on the annular sleeve 42 with the central axis of the annular sleeve 42 as the center. A transverse adjusting screw 422 is screwed in each transverse screw-connected through hole 421. The outer end of the transverse adjusting screw 422 extends out of the outer side wall of the annular sleeve 42 and is fixed with a rotating wheel 423. The inner end of the transverse adjusting screw 422 extends out of the inner end of the transverse screw-connected through hole 421 and is fixed with a circular limiting plate 424. The outer end of the transverse adjusting screw 422 extending out of the transverse screw-connected through hole 421 is also screwed with a locking nut, which is pressed against the outer side wall of the annular sleeve 42.

[0024] The inner end surface of the circular stop plate 424 is in close contact with the outer side wall of the corresponding semicircular bearing bush 100. Since the inner end of the circular stop plate 424 is a vertical plane, the contact is in a vertical straight line when in close contact.

[0025] In this embodiment, the outer side wall of each semicircular bearing 100 is tightly attached to the inner ends of three circular limiting plates 424 to achieve positioning.

[0026] During adjustment, the locking nut is loosened and the lateral adjustment screw 422 is rotated to change the position of the circular limit plate 424, thereby achieving adjustment. The adjustment is convenient, wherein each batch of processed bearings 100 only needs to be adjusted after the first processing, and basically no subsequent adjustment is required;

[0027] When the bearing 100 cannot be installed during the processing, it is necessary to loosen the locking nut, fine-tune the lateral adjustment screw 422 (for example, rotate it half a circle or a certain angle, etc.), and then install the bearing 100. Then, rotate and adjust the circular limit plate 424 back again, wherein a scale is engraved on the outer end surface edge of the rotating wheel 423 with the central axis of the lateral adjustment screw 422 as the center, and an alignment baseline is engraved on the outer side wall of the annular sleeve 42 corresponding to the rotating wheel 423, which corresponds to the scale, so that it is convenient to check the angle and relationship between the scale and the baseline during adjustment, so as to facilitate subsequent adjustment and return operations, facilitate adjustment, and improve the accuracy of adjustment.

[0028] Furthermore, the bottom end of the main shaft 40 extends out of the bottom surface of the top plate of the upper movable support frame 30 and is fixed with a transmission synchronous pulley 44, and the right top surface of the top plate of the upper movable support frame 30 is fixed with a driving servo motor 31, and the bottom end of the output shaft of the driving servo motor 31 extends out of the bottom surface of the top plate of the upper movable support frame 30 and is fixed with a driving synchronous pulley 32, and the synchronous belt 1 is tensioned on the transmission synchronous pulley 44 and the driving synchronous pulley 32.

[0029] Furthermore, an annular guide rail 50 is fixed to the top surface of the top plate of the upper movable support frame 30 around the spindle 40, and an annular block 45 is fixed to the bottom surface of the rotating plate 41, and the lower part of the annular block 45 is inserted into the annular groove formed in the middle of the top surface of the annular guide rail 50. A self-lubricating layer 51 is fixed to the bottom surface of the annular groove, and the bottom surface of the annular block 45 is pressed against the top surface of the self-lubricating layer 51, and the outer side wall of the annular block 45 is close to and matched with the corresponding inner side of the annular groove. This structure allows the edge of the rotating plate 41 to be supported when it rotates, ensuring its smooth rotation.

[0030] Furthermore, the upper movable support frame 30 includes a top plate and a bottom plate, and connecting blocks are fixed to the left and right parts between the top plate and the bottom plate, the top surface of the connecting block is fixed to the bottom surface of the top plate, and the bottom surface of the connecting block is fixed to the corresponding top surface of the bottom plate;

[0031] A moving block 21 is fixed to the middle bottom surface of the bottom plate.

[0032] Furthermore, the movable base 20 includes a fixed bottom plate 22, and vertical fixed plates 23 are fixed to the left and right parts of the top surface of the fixed bottom plate 22. The two ends of the transverse moving screw 24 are movably connected to the two vertical fixed plates 23 through bearings. A movable servo motor 25 is fixed to the outer wall of one of the vertical fixed plates 23. The output shaft of the movable servo motor 25 is a spline shaft, which is inserted into the spline hole at one end of the transverse moving screw 24. The operation of the movable servo motor 25 drives the transverse moving screw 24 to rotate, and the movable block 21 is screwed to the transverse moving screw 24.

[0033] Furthermore, the front and rear parts of the bottom surface of the bottom plate of the upper movable support frame 30 are fixed with transverse guide blocks 2, the front and rear parts of the top surface of the fixed bottom plate 22 are fixed with side connecting plates 26, the left and right ends of the side connecting plates 26 are fixed on the relative wall surfaces of the two vertical fixed plates 23, and the top surface of the side connecting plates 26 is fixed with upper guide strips 27 extending left and right, and the upper guide strips 27 are inserted into the transverse guide grooves extending left and right formed on the bottom surface of the transverse guide block 2.

[0034] A horizontal fixing plate is fixed on the right side wall of the lifting shell at the drill bit connection of the drilling machine 10, and a clamping cylinder 60 is fixed on the top surface of the horizontal fixing plate. The bottom end of the push rod of the clamping cylinder 60 extends out of the horizontal fixing plate and is fixed to a lifting plate 61. A plurality of compression springs are fixed to the bottom surface of the lifting plate 61, and the bottom ends of all the compression springs are fixed to the same upper pressing plate 62. A plurality of guide rods are fixed to the top surface of the lifting plate 61, and the guide rods are inserted into the corresponding vertical guide through holes of the horizontal fixing plate.

[0035] The electrical equipment used in this embodiment is electrically connected to the control host through electrical connecting lines, and its operation is controlled by the control host. The clamping cylinder 60 is connected to the control valve installed on the pneumatic system through a connecting air pipe, and is operated through the control valve of the pneumatic system to achieve corresponding actions. They are all conventional structures and will not be described in detail here.

[0036] When this embodiment is used, two semicircular bearings 100 to be processed can be inserted into the annular sleeve 42 to form a circular bearing, and the outer wall of each semicircular bearing 100 is tightly attached to the inner end of three circular stop plates 424 to achieve positioning;

[0037] Among them, the top surface of the flange edge 101 of each semicircular bearing 100 is pre-marked with the center position of the drilling hole, and all the center positions of the drilling hole are evenly distributed on the flange edge 101 with the central axis of the semicircular bearing 100 as the center. It is operated by moving the servo motor 25 to move the upper movable support frame 30 to the left, so that the flange edge 101 is directly below the drill bit of the drilling machine 10, and then, by driving the servo motor 31 to operate, the rotating plate 41 is rotated so that the drill bit of the drilling machine 10 is aligned with one of the center positions of the drilling hole on the top surface of the flange edge 101. At the same time, the bottom end of the drill bit is close to the center position of the drilling hole, and then, the push rod of the clamping cylinder 60 pushes to make the lifting plate 61 descend, so that the upper pressure plate 62 is pressed against The top surfaces of the two flange edges 101 are pressed and fixed, and then the drilling machine 10 is operated, and the drill bit rotates and descends to drill holes. During this process, the lifting plate 61 continues to descend, and all the clamping springs are further compressed to improve the clamping effect. After the corresponding position of the flange edge 101 is processed, the push rod of the clamping cylinder 60 retracts, and the drill bit of the drilling machine 10 returns to its position. Then, by driving the servo motor 31 to operate, the rotating plate 41 rotates, so that the center position of the subsequent drilling that needs to be processed is located below the bottom end of the drill bit. Then, the processing can be carried out in the same way as above, and continuous processing can be realized. The drilling of two semicircular bearings 100 can be completed by one clamping. It has high efficiency and good effect, which greatly improves the processing efficiency.

Claims

1. A bearing bush drilling device, comprising a drilling machine (10), characterized in that: A movable base (20) is fixed on the ground at the right side of the drilling machine (10), an upper movable support frame (30) is fixed on the top surface of a movable block (21) of the movable base (20), a main shaft (40) is movably connected to the middle part of the top plate of the upper movable support frame (30) through a bearing, the top end of the main shaft (40) extends out of the top surface of the top plate of the upper movable support frame (30) and is fixed with a rotating plate (41), an annular sleeve (42) is fixed on the top surface of the rotating plate (41), a radially extending edge (43) is formed on the top inner side wall of the annular sleeve (42), two semicircular bearings (100) to be processed form a circular bearing and are inserted into the annular sleeve (42), a radially extending flange edge (101) is formed on the top outer side wall of the semicircular bearing (100), and the bottom surface of the outer side of the flange edge (101) is pressed against the top surface of the radially extending edge (43); The bottom end of the main shaft (40) extends out of the bottom surface of the top plate of the upper movable support frame (30) and is fixed with a transmission synchronous pulley (44); a driving servo motor (31) is fixed to the right top surface of the top plate of the upper movable support frame (30); the bottom end of the output shaft of the driving servo motor (31) extends out of the bottom surface of the top plate of the upper movable support frame (30) and is fixed with a driving synchronous pulley (32); the synchronous belt (1) is tensioned on the transmission synchronous pulley (44) and the driving synchronous pulley (32).

2. A bearing bush drilling device according to claim 1, characterized in that: An annular guide rail (50) is fixed to the top surface of the top plate of the upper movable support frame (30) around the main shaft (40), an annular block (45) is fixed to the bottom surface of the rotating plate (41), and the lower part of the annular block (45) is inserted into an annular groove formed in the middle of the top surface of the annular guide rail (50).

3. A bearing bush drilling device according to claim 2, characterized in that: A self-lubricating layer (51) is fixed to the bottom surface of the annular groove, the bottom surface of the annular block (45) is pressed against the top surface of the self-lubricating layer (51), and the outer wall of the annular block (45) is close to and matched with the corresponding inner side of the annular groove.

4. A bearing bush drilling device according to claim 1, characterized in that: The upper movable support frame (30) comprises a top plate and a bottom plate, and connecting blocks are fixed to the left and right parts between the top plate and the bottom plate, the top surface of the connecting block is fixed to the bottom surface of the top plate, and the bottom surface of the connecting block is fixed to the corresponding top surface of the bottom plate; A moving block (21) is fixed to the middle bottom surface of the bottom plate.

5. A bearing bush drilling device according to claim 1, characterized in that: The movable base (20) comprises a fixed bottom plate (22), the left and right parts of the top surface of the fixed bottom plate (22) are fixed with vertical fixed plates (23), the two ends of a transverse moving screw (24) are movably connected to the two vertical fixed plates (23) through bearings, a movable servo motor (25) is fixed to the outer wall of one of the vertical fixed plates (23), the output shaft of the movable servo motor (25) is connected to the transverse moving screw (24) and drives the transverse moving screw (24) to rotate, and the movable block (21) is screwed on the transverse moving screw (24).

6. A bearing bush drilling device according to claim 5, characterized in that: The front and rear parts of the bottom surface of the bottom plate of the upper movable support frame (30) are fixed with transverse guide blocks (2), the front and rear parts of the top surface of the fixed bottom plate (22) are fixed with side connecting plates (26), the left and right ends of the side connecting plates (26) are fixed to the opposite wall surfaces of the two vertical fixed plates (23), and the top surface of the side connecting plates (26) is fixed with upper guide strips (27) extending left and right, and the upper guide strips (27) are inserted into transverse guide grooves extending left and right formed on the bottom surface of the transverse guide blocks (2).

7. A bearing bush drilling device according to claim 1, characterized in that: A plurality of transverse screw-connected through holes (421) are formed on the side wall of the annular sleeve (42). All the transverse screw-connected through holes (421) are evenly distributed on the annular sleeve (42) with the central axis of the annular sleeve (42) as the center. A transverse adjustment screw (422) is screwed in each transverse screw-connected through hole (421). The outer end of the transverse adjustment screw (422) extends out of the outer wall of the annular sleeve (42) and is fixed with a rotating wheel (423). The inner end of the transverse adjustment screw (422) extends out of the inner end of the transverse screw-connected through hole (421) and is fixed with a circular limiting plate (424). The inner end surface of the circular limiting plate (424) is tightly attached to the outer wall of the corresponding semicircular bearing (100).

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