Automatic centering device of centerless grinding machine for bearing accessories

Abstract

The utility model relates to the technical field of centerless grinding machines, and provides an automatic centering device of a bearing accessory centerless grinding machine, which comprises a support frame, a carrying shaft rod is rotatably connected to the middle of the support frame, the carrying shaft rod is of a hollow structure, and a transmission motor is fixedly connected to the top end of the support frame. The output end of the transmission motor and one end of the carrying shaft rod are fixedly connected with transmission chain wheels, the two transmission chain wheels are connected through a chain, the two ends of the outer side of the carrying shaft rod are fixedly connected with a plurality of positioning bases, the interior of each positioning base is slidably connected with a locking block, and an adjusting assembly is arranged in the carrying shaft rod. A driving assembly is arranged at one end of the supporting frame and used for being matched with the adjusting assembly and the locking block to position an external grinding wheel cylinder. By means of the technical scheme, the problem that in the prior art, when the grinding wheel installation efficiency is low, centering debugging needs to be repeatedly carried out after installation, and the whole is not convenient enough is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of centerless grinding machine, specifically, a bearing fitting centerless grinding machine's automatic centering device. BACKGROUND

[0002] Centerless grinding machine is a kind of grinding machine that does not need to adopt the shaft center positioning of workpiece to carry out grinding, mainly by sand wheel, adjusting wheel and workpiece support three mechanisms are constituted, wherein grinding sand wheel actually undertakes the work of grinding, adjusting wheel controls the rotation of workpiece, and controls the feed speed of workpiece, as for workpiece support, it supports workpiece during grinding, and is widely applied in bearing fitting production field;

[0003] However, the installation of centerless grinding machine sand wheel in traditional technology is mainly through flange or key connection, the above-mentioned connecting mode makes the sand wheel installation efficiency slower, and also needs to be repeatedly centered after installation Debugging, so that the whole is not convenient;

[0004] Based on this, we propose a kind of bearing fitting centerless grinding machine's automatic centering device. INVENTION CONTENTS

[0005] The utility model proposes a kind of bearing fitting centerless grinding machine's automatic centering device, solve the problem that sand wheel installation efficiency is slower in the related art, and also needs to be repeatedly centered after installation Debugging, so that the whole is not convenient.

[0006] The technical scheme of the utility model is as follows: a kind of bearing fitting centerless grinding machine's automatic centering device, including support frame, the middle part of the support frame is rotatably connected with the carrying shaft, and the carrying shaft is hollow structure, the top of the support frame is fixedly connected with transmission motor, the output of transmission motor and the one end of carrying shaft are all fixedly connected with transmission sprocket, and the two transmission sprockets are connected by chain, the two ends of the outside of carrying shaft are all fixedly connected with a plurality of positioning seats, the inside of each positioning seat is slidably connected with locking block, the inside of carrying shaft is provided with adjusting assembly, one end of the support frame is provided with driving assembly, and the driving assembly is used to cooperate with adjusting assembly and locking block positioning external sand wheel cylinder.

[0007] Preferably, the adjusting assembly includes a center shaft, a threaded segment, a displacement push piece, a carrying seat and a linkage rod, the inside of the carrying shaft is rotatably connected with the center shaft, the two ends of the center shaft are both provided with threaded segment, and the thread rotation direction of the two threaded segments is opposite, the outside of the two threaded segments is all threadedly connected with displacement push piece, the outside of the displacement push piece is fixedly connected with the carrying seat corresponding to locking block, and the top of the carrying seat penetrates the carrying shaft, each carrying seat is rotatably connected with linkage rod, and the end, away from the carrying seat, of the linkage rod is rotatably connected with the corresponding locking block.

[0008] Preferably, the driving assembly comprises an adjusting seat, a hydraulic rod, a displacement push plate, a driving motor and a driving shaft, one end of the supporting frame is fixedly connected with the adjusting seat, one end of the adjusting seat is fixedly connected with the hydraulic rod, the output end of the hydraulic rod is fixedly connected with the displacement push plate, one side of the top of the displacement push plate is fixedly connected with the driving motor, the output end of the driving motor is fixedly connected with the driving shaft, and one end of the driving shaft is also connected with the central shaft rod through a clamping connection.

[0009] Preferably, the central part of the inner side of the carrying shaft rod is fixedly connected with a stabilizing plate, and the central shaft rod is also connected in the middle of the stabilizing plate through a ball bearing.

[0010] Preferably, a plurality of avoiding grooves are arranged on the outer side of the carrying shaft rod, and the carrying seat is located in the avoiding grooves.

[0011] Preferably, assembly ears are fixedly connected on the carrying seat and the locking block, and the linkage rod is connected between the corresponding two assembly ears through a rotating shaft.

[0012] Preferably, a guide rod is also slidably connected at one end of the adjusting seat, and one end of the guide rod on the inner side of the adjusting seat is also fixedly connected with the displacement push plate.

[0013] Preferably, a clamping block is fixedly connected at one end of the driving shaft, a matching clamping block is fixedly connected at one end of the linkage rod penetrating through the carrying shaft rod, and the clamping block is clamped and connected at one end of the matching clamping block.

[0014] The working principle and beneficial effects of the utility model are as follows:

[0015] In the utility model, the center positioning of the grinding wheel cylinder can be automatically formed through the structure cooperation of the locking block, the adjusting assembly and the driving assembly, the installation time of the grinding wheel cylinder is greatly shortened, and the center positioning debugging does not need to be repeatedly performed in the later period, and the overall convenience is greatly improved. ACCURATE DRAWINGS

[0016] The utility model will be explained further in detail in combination with the drawings and specific embodiments.

[0017] Figure 1 It is the structure schematic view of the utility model;

[0018] Figure 2 It is the side view of the structure of the utility model;

[0019] Figure 3 It is the structure schematic view of the adjusting assembly of the utility model;

[0020] Figure 4 It is the structure schematic view of the driving assembly of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the grinding wheel cylinder of this utility model.

[0022] In the diagram: 1. Support frame; 2. Mounting shaft; 3. Drive motor; 4. Drive sprocket; 5. Positioning seat; 6. Locking block; 7. Adjustment assembly; 8. Drive assembly; 9. Grinding wheel cylinder; 10. Central shaft; 11. Threaded section; 12. Displacement push plate; 13. Mounting seat; 14. Linkage rod; 15. Adjustment seat; 16. Hydraulic rod; 17. Displacement push plate; 18. Drive motor; 19. Drive shaft; 20. Locking groove. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0024] Example 1

[0025] like Figures 1-5 As shown, this embodiment proposes an automatic centering device for a centerless grinder for bearing accessories, including a support frame 1. A mounting shaft 2 is rotatably connected to the middle of the support frame 1, and the mounting shaft 2 has a hollow structure. A drive motor 3 is fixedly connected to the top of the support frame 1. A drive sprocket 4 is fixedly connected to the output end of the drive motor 3 and one end of the mounting shaft 2. The two drive sprockets 4 are connected by a chain. Multiple positioning seats 5 are fixedly connected to both ends of the outer side of the mounting shaft 2. A locking block 6 is slidably connected inside each positioning seat 5. An adjustment component 7 is provided inside the mounting shaft 2. A drive component 8 is provided at one end of the support frame 1. The drive component 8 is used to cooperate with the adjustment component 7 and the locking block 6 to position the external grinding wheel cylinder 9.

[0026] The adjustment assembly 7 includes a central shaft 10, a threaded section 11, a displacement pusher 12, a mounting base 13, and a linkage rod 14. The central shaft 10 is rotatably connected inside the mounting shaft 2. Both ends of the central shaft 10 are provided with threaded sections 11, and the threads of the two threaded sections 11 are opposite in direction. The displacement pusher 12 is threadedly connected to the outer side of the two threaded sections 11. The mounting base 13 corresponding to the locking block 6 is fixedly connected to the outer side of the displacement pusher 12. The top end of the mounting base 13 passes through the mounting shaft 2. A linkage rod 14 is rotatably connected to each mounting base 13, and the end of the linkage rod 14 away from the mounting base 13 is rotatably connected to the corresponding locking block 6.

[0027] In the embodiment, the inner side of the grinding wheel cylinder 9 is provided with a plurality of matching grooves 20, and the locking block 6 is connected in the inner side of the matching groove 20. By arranging the matching groove 20, after the grinding wheel cylinder 9 is sleeved on the mounting shaft 2, the locking block 6 is moved into the matching groove 20, and the centering assembly of the grinding wheel cylinder 9 is formed. The outer side of the mounting shaft 2 is fixedly connected with a plurality of limiting strips, and the inner wall of the grinding wheel cylinder 9 is provided with a plurality of limiting grooves, and the limiting strip is also slidably connected in the limiting groove. By arranging the limiting strip and the limiting groove, when the grinding wheel cylinder 9 is sleeved, the limiting groove is first corresponded with the limiting strip, and then the grinding wheel cylinder 9 is pushed, so that the grinding wheel cylinder 9 is pushed to the corresponding position;

[0028] In detail, the middle part of the mounting shaft 2 is fixedly connected with a stabilizing plate, and the center shaft 10 is also connected in the middle part of the stabilizing plate through the ball bearing. By arranging the stabilizing plate, the center shaft 10 can be auxiliary supported, so as to ensure the stability of the rotation of the center shaft 10 and ensure the displacement effect of the threaded section 11;

[0029] Further, the outer side of the mounting shaft 2 is provided with a plurality of avoiding grooves, and the mounting seat 13 is located in the avoiding groove. By arranging the avoiding groove, when the center shaft 10 rotates, the displacement of the mounting seat 13 will not be interfered;

[0030] Further, the mounting seat 13 and the locking block 6 are both fixedly connected with assembly ears, and the linkage rod 14 is connected between the corresponding two assembly ears through the rotating shaft. By arranging the assembly ear, the linkage rod 14 can be stably assembled between the mounting seat 13 and the locking block 6, and the smoothness of the rotation of the linkage rod 14 and the locking block 6 is ensured;

[0031] Embodiment 2

[0032] As shown in the figure, Figures 1-5 Based on the same idea as the above embodiment 1, the embodiment also proposes a driving assembly 8;

[0033] In the embodiment, the driving assembly 8 comprises an adjusting seat 15, a hydraulic rod 16, a displacement push plate 17, a driving motor 18 and a driving shaft 19. One end of the supporting frame 1 is fixedly connected with the adjusting seat 15. One end of the adjusting seat 15 is fixedly connected with the hydraulic rod 16. The output end of the hydraulic rod 16 is fixedly connected with the displacement push plate 17. One side of the top of the displacement push plate 17 is fixedly connected with the driving motor 18. The output end of the driving motor 18 is fixedly connected with the driving shaft 19. One end of the driving shaft 19 is also connected with the center shaft 10.

[0034] Preferably, one end of the adjusting seat 15 is also slidably connected with a guide rod, and one end of the guide rod located in the inner side of the adjusting seat 15 is also fixedly connected with the displacement push plate 17. By arranging the guide rod, the displacement of the displacement push plate 17 can be effectively guided, so as to avoid uncontrollable displacement of the displacement push plate 17;

[0035] Further, one end of the driving shaft 19 is fixedly connected with a clamping block, one end of the linkage rod 14 penetrating through the carrying shaft 2 is fixedly connected with a matching lock block, and the clamping block is clamped and connected at one end of the matching lock block. By arranging the clamping block and the matching lock block, when the clamping block is connected with the matching lock block, the driving shaft 19 can drive the matching lock block to rotate simultaneously when the driving shaft 19 rotates, and when the clamping block is separated from the matching lock block, the carrying shaft 2 will not be affected by the rotation.

[0036] One specific application of the above two embodiments is that first, the hydraulic rod 16 is started to push the displacement push plate 17 to linearly displace until the driving shaft 19 is clamped with the center shaft 10, then the grinding wheel cylinder 9 is sleeved outside the carrying shaft 2, and the driving motor 18 is started to drive the driving shaft 19 to rotate. Under the connection of the driving shaft 19 and the center shaft 10, the center shaft 10 can rotate with the driving shaft 19. In combination with the arrangement of the two opposite screw thread segments 11 on the center shaft 10, the two displacement push pieces 12 can be driven to move away from each other. Since the linkage rod 14 is connected between the locking block 6 and the carrying seat 13, when the displacement push piece 12 slides, the locking block 6 can be pushed by the linkage rod 14 to move out of the positioning seat 5 and be connected with the grinding wheel cylinder 9, so as to complete the centering and locking of the grinding wheel cylinder 9. Then, the hydraulic rod 16 is started to pull the displacement push plate 17 to make the driving shaft 19 separate from the center shaft 10, and the transmission motor 3 is started to drive the carrying shaft 2 to rotate in combination with the arrangement of the chain, so as to drive the grinding wheel cylinder 9 to polish the bearing assembly.

[0037] The above is only a preferred embodiment of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic centering device for a bearing assembly centerless grinder, characterized by, The utility model provides a kind of sanding machine, including support frame (1), the middle part of support frame (1) is rotatably connected with the carrying shaft (2), and the carrying shaft (2) is hollow structure, the top of support frame (1) is fixedly connected with transmission motor (3), the output end of transmission motor (3) and the one end of carrying shaft (2) are all fixedly connected with transmission sprocket (4), and two transmission sprockets (4) are connected by chain, the both ends of the outside of carrying shaft (2) are all fixedly connected with multiple positioning seats (5), the inside of each positioning seat (5) is slidably connected with locking block (6), the inside of carrying shaft (2) is provided with adjusting assembly (7), one end of support frame (1) is provided with drive assembly (8), and drive assembly (8) is used to cooperate with adjusting assembly (7) and locking block (6) positioning external grinding wheel cylinder (9).

2. The automatic centering device of a bearing fitting centerless grinding machine according to claim 1, characterized in that, The adjusting assembly (7) includes a central shaft (10), a threaded segment (11), a displacement push piece (12), a carrying seat (13), and a linkage rod (14). The inside of the carrying shaft (2) is rotatably connected with the central shaft (10). The both ends of the central shaft (10) are provided with threaded segments (11), and the threads of the two threaded segments (11) are opposite. The outside of the two threaded segments (11) is threadedly connected with displacement push pieces (12). The outside of the displacement push piece (12) is fixedly connected with a carrying seat (13) corresponding to the locking block (6). The top of the carrying seat (13) penetrates the carrying shaft (2). Each carrying seat (13) is rotatably connected with a linkage rod (14), and the end of the linkage rod (14) away from the carrying seat (13) is rotatably connected with the corresponding locking block (6).

3. The automatic centering device of a bearing fitting centerless grinding machine according to claim 2, characterized in that, The drive assembly (8) includes an adjusting seat (15), a hydraulic rod (16), a displacement push plate (17), a drive motor (18), and a drive shaft (19). One end of the support frame (1) is fixedly connected with the adjusting seat (15). One end of the adjusting seat (15) is fixedly connected with the hydraulic rod (16). The output end of the hydraulic rod (16) is fixedly connected with the displacement push plate (17). One side of the top of the displacement push plate (17) is fixedly connected with the drive motor (18). The output end of the drive motor (18) is fixedly connected with the drive shaft (19). One end of the drive shaft (19) is also connected with the central shaft (10) through a clamping connection.

4. The automatic centering device of a bearing fitting centerless grinding machine according to claim 2, wherein The inside of the carrying shaft (2) is fixedly connected with a stabilizing plate. The central shaft (10) is also connected with the middle part of the stabilizing plate through a ball bearing.

5. The automatic centering device of a bearing fitting centerless grinding machine according to claim 2, wherein The outside of the carrying shaft (2) is provided with multiple avoiding grooves, and the carrying seat (13) is located inside the avoiding grooves.

6. The automatic centering device of a bearing fitting centerless grinding machine according to claim 2, wherein The carrying seat (13) and the locking block (6) are both fixedly connected with assembly ears, and the linkage rod (14) is connected between the corresponding two assembly ears through an axis.

7. The automatic centering device of a bearing fitting centerless grinding machine according to claim 3, wherein One end of the adjusting seat (15) is also slidably connected with a guide rod, and one end of the guide rod inside the adjusting seat (15) is also fixedly connected with the displacement push plate (17).

8. The automatic centering device of a bearing fitting centerless grinding machine according to claim 3, characterized in that, One end of the driving shaft (19) is fixedly connected with a clamping block, one end of the linkage rod (14) penetrating through the carrying shaft (2) is fixedly connected with a matching lock block, and the clamping block is connected in the end of the matching lock block.

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