Precise polishing device for camshaft

Abstract

The utility model discloses a cam shaft precision polishing device, and particularly relates to the technical field of polishing, the cam shaft precision polishing device comprises a positioning sleeve plate, a supporting sleeve plate and a polishing motor, the supporting sleeve plate is located on one side of the positioning sleeve plate, the polishing motor is fixedly installed on one side of the supporting sleeve plate, and a multi-section positioning polishing assembly is installed at the output end of the polishing motor; the multi-section positioning polishing assembly comprises a large polishing ring, a medium polishing ring, a positioning supporting plate, a transmission shaft, an end, a small polishing ring and a bearing sleeve. The large polishing ring is rotationally located on one side of the positioning sleeve plate. The multi-section positioning and polishing assembly is adopted, the transmission shaft synchronously rotates in the positioning sleeve plate and the bearing sleeve, the transmission shaft drives the medium-sized polishing ring to rotate and can also drive the small-sized polishing ring to rotate, the medium-sized polishing ring, the small-sized polishing ring and the large-sized polishing ring are synchronously positioned to precisely polish the camshaft, and positioning and polishing are accurate.

Description

TECHNICAL FIELD

[0001] The utility model relates to polishing technical field more specifically, the utility model relates to a camshaft precision polishing device. BACKGROUND

[0002] The camshaft can significantly reduce the surface roughness after precision polishing, and reach the technical requirement of Ra0.01-0.1 microns. The high-precision surface quality not only improves the appearance of the camshaft, but more importantly, reduces the surface microscopic defects, such as burrs and scratches, thereby improving the overall quality.

[0003] In the existing public literature, the patent with the patent announcement number CN207840960U discloses a camshaft abrasive-free low-temperature polishing device. The technology realizes ice wheel melting compensation through the pushing action of the air cylinder to ensure constant pressure polishing. The advantages are that the device is simple in design, easy to operate, does not require cooling liquid during polishing, does not pollute the environment, and saves processing costs. It can further improve the surface quality of the camshaft, so that the surface roughness profile can reach Ra50nm, and improve the engine performance index. However, the technology has the following defects:

[0004] During the precision polishing of the camshaft, it is difficult to accurately position and polish different positions of the camshaft as needed during movement, resulting in polishing deviation in each polishing area and poor polishing accuracy. Therefore, a camshaft precision polishing device is needed. UTILITY MODEL CONTENTS

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides the following technical scheme: a camshaft precision polishing device, comprising a positioning sleeve plate, a supporting sleeve plate and a polishing motor, the supporting sleeve plate is located on one side of the positioning sleeve plate, the polishing motor is fixedly installed on one side of the supporting sleeve plate, and a plurality of positioning polishing assemblies are installed on the output end of the polishing motor.

[0006] The large polishing ring is rotatably located on one side of the positioning sleeve plate, the medium polishing ring is located on one side of the large polishing ring, the bearing sleeve is rotatably installed on one side of the medium polishing ring, and the positioning support plate is fixedly connected to the bottom end of the bearing sleeve, the transmission shaft is fixedly connected to the output end of the polishing motor, the end head is fixedly connected to one end of the transmission shaft, the small polishing ring is rotatably connected to one side of the outer wall of the bearing sleeve, the small polishing ring and the medium polishing ring are fixedly connected to the transmission shaft, and the large polishing ring is fixedly connected to the transmission shaft.

[0007] Preferably, the bearing sleeve is rotatably connected with the transmission shaft, the outer wall diameter of the small polishing ring is smaller than that of the medium polishing ring; the vertical section shape of the medium polishing ring and the small polishing ring are both circular annular; the outer wall of the bearing sleeve is fixedly installed with a linkage plate on the side adjacent to the medium polishing ring; the positioning sleeve plate and the supporting sleeve plate are both fixedly connected with the linkage plate.

[0008] In use, the polishing motor drives the transmission shaft to rotate, the transmission shaft drives the large polishing ring to rotate, the transmission shaft drives the medium polishing ring to rotate, and the transmission shaft can also drive the small polishing ring to rotate, the linkage plate supports the bearing sleeve and the positioning sleeve plate, the medium polishing ring, the small polishing ring and the large polishing ring are synchronously positioned to precisely polish the camshaft.

[0009] Preferably, the bottom end of the positioning sleeve plate is fixedly installed with a bearing sleeve seat, the inner wall of the bearing sleeve seat is drivingly connected with a transmission rod, the outer wall of the transmission rod is sequentially provided with a matching polishing wheel, a large polishing wheel and a sheet wheel from right to left; the matching polishing wheel, the large polishing wheel and the sheet wheel are all fixedly connected with the transmission rod; the outer wall of the transmission rod is rotatably connected with a positioning shaft sleeve near the sheet wheel; the one side of the positioning shaft sleeve is sequentially provided with a fixed supporting plate and a mounting base from left to right, and the mounting base is fixedly connected with the bearing sleeve seat; the outer wall diameter of the large polishing wheel is larger than that of the matching polishing wheel; and the one side of the matching polishing wheel is chamfered.

[0010] In use, the large-power motor drives the transmission rod to rotate, the transmission rod drives the matching polishing wheel to rotate, the transmission rod drives the sheet wheel to rotate, and the transmission rod is stably rotated in the positioning shaft sleeve to realize positioning transmission polishing.

[0011] The technical effects and advantages of the present application are as follows:

[0012] The present application adopts a multi-section positioning polishing assembly, the polishing motor drives the transmission shaft to rotate, the transmission shaft is synchronously rotated in the positioning sleeve plate and the bearing sleeve, the transmission shaft drives the large polishing ring to rotate, the transmission shaft drives the medium polishing ring to rotate, and the transmission shaft can also drive the small polishing ring to rotate, the medium polishing ring, the small polishing ring and the large polishing ring are synchronously positioned to precisely polish the camshaft, and the positioning is accurate.

[0013] 2. This utility model uses a high-power motor to drive the transmission rod to rotate. The transmission rod drives the polishing wheel to rotate and can also drive the large polishing wheel to rotate. The transmission rod causes the disc wheel to rotate. In this way, the transmission rod can stably achieve rotation operation inside the positioning bushing. The polishing wheel, the large polishing wheel, and the disc wheel can achieve precise and stable polishing of large-size camshafts. Attached Figure Description

[0014] Figure 1 This is a top view of the camshaft precision polishing device of this utility model.

[0015] Figure 2 This is a partial structural diagram of the connection between the drive shaft and the end of the present invention.

[0016] Figure 3 This is a partial structural diagram of the connection between the bearing housing and the transmission rod of this utility model.

[0017] Figure 4 This is a schematic diagram of the main structure of the camshaft precision polishing device of this utility model.

[0018] Figure 5 This is a partial structural diagram showing the connection between the positioning sleeve plate and the high-power motor of this utility model.

[0019] The attached diagram is labeled as follows: 1. Positioning sleeve; 2. Supporting sleeve; 3. Polishing motor; 4. Large polishing ring; 5. Medium polishing ring; 6. Positioning support plate; 7. Drive shaft; 8. End; 9. Small polishing ring; 10. Bearing sleeve; 11. Linkage plate; 12. Bearing housing; 13. Drive rod; 14. Fitting polishing wheel; 15. Large polishing wheel; 16. Polishing wheel; 17. Positioning bushing; 18. Fixed support plate; 19. Mounting base; 20. High-power motor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] As attached Figure 1 - Appendix Figure 5 The camshaft precision polishing device shown has a multi-section positioning polishing assembly. The multi-section positioning polishing assembly enables the medium polishing ring 5, the small polishing ring 9, and the large polishing ring 4 to be positioned synchronously for precision polishing of the camshaft. The specific structure of the multi-section positioning polishing assembly is as follows.

[0022] In the embodiment, as shown in the accompanying drawings Figure 1 - the accompanying drawings Figure 2 Supporting sleeve plate 2 is located on one side of positioning sleeve plate 1, and polishing motor 3 is fixedly installed on one side of supporting sleeve plate 2. The output end of polishing motor 3 is provided with a plurality of positioning polishing assemblies. The plurality of positioning polishing assemblies include large polishing ring 4, medium polishing ring 5, positioning support plate 6, transmission shaft 7, end head 8, small polishing ring 9 and bearing sleeve 10. Large polishing ring 4 is rotatably located on one side of positioning sleeve plate 1, medium polishing ring 5 is located on one side of large polishing ring 4, bearing sleeve 10 is rotatably installed on one side of medium polishing ring 5, and positioning support plate 6 is fixedly connected to the bottom end of bearing sleeve 10. Transmission shaft 7 is fixedly connected to the output end of polishing motor 3, end head 8 is fixedly connected to one end of transmission shaft 7, small polishing ring 9 is rotatably connected to one side of the outer wall of bearing sleeve 10, small polishing ring 9 and medium polishing ring 5 are fixedly connected with transmission shaft 7, and large polishing ring 4 is fixedly connected with transmission shaft 7. Bearing sleeve 10 is rotatably connected with transmission shaft 7, and the outer wall diameter of small polishing ring 9 is smaller than that of medium polishing ring 5. The vertical section shape of medium polishing ring 5 and small polishing ring 9 is circular ring shape.

[0023] In the embodiment, as shown in the accompanying drawings Figure 2 The outer wall of bearing sleeve 10 and located on one side adjacent to medium polishing ring 5 is fixedly installed with linkage plate 11, and positioning sleeve plate 1 and supporting sleeve plate 2 are fixedly connected with linkage plate 11.

[0024] When the camshaft precision polishing device is used, polishing motor 3 is started to drive transmission shaft 7 to rotate, and transmission shaft 7 synchronously rotates in the interior of positioning sleeve plate 1 and bearing sleeve 10. At the same time, transmission shaft 7 drives large polishing ring 4 to rotate, and transmission shaft 7 drives medium polishing ring 5 to rotate. Transmission shaft 7 can also drive small polishing ring 9 to rotate, and end head 8 also synchronously rotates. At the same time, linkage plate 11 supports bearing sleeve 10 and positioning sleeve plate 1 to increase the stability of bearing sleeve 10 and positioning sleeve plate 1. At the same time, medium polishing ring 5 and small polishing ring 9 and large polishing ring 4 synchronously position the camshaft precision polishing, and the positioning precision polishing greatly improves the polishing accuracy.

[0025] In the embodiment, as shown in the accompanying drawings Figure 3 - the accompanying drawings Figure 5As shown, the bottom end of the positioning sleeve plate 1 is fixedly provided with a bearing sleeve 12, the inner wall of the bearing sleeve 12 is drivingly connected with a transmission rod 13, the outer wall of the transmission rod 13 is sequentially provided with a matching polishing wheel 14, a polishing large wheel 15 and a sheet wheel 16 from right to left; the matching polishing wheel 14, the polishing large wheel 15 and the sheet wheel 16 are all fixedly connected with the transmission rod 13, the outer wall of the transmission rod 13 and close to the sheet wheel 16 is rotatably connected with a positioning shaft sleeve 17, the side of the positioning shaft sleeve 17 is sequentially provided with a fixed support plate 18 and a mounting base 19 from left to right, and the mounting base 19 is fixedly connected with the bearing sleeve 12. The outer wall diameter of the polishing large wheel 15 is larger than the outer wall support of the matching polishing wheel 14, and the side of the matching polishing wheel 14 is chamfered. The mounting base 19 and the positioning shaft sleeve 17 are both fixedly connected with the fixed support plate 18, and the center point of the inner wall of the positioning shaft sleeve 17 and the center point of the transmission rod 13 are on the same horizontal line. One end of the transmission rod 13 is provided with a high-power motor 20, the high-power motor 20 is fixedly connected with the positioning sleeve plate 1, and the high-power motor 20 is used to drive the transmission rod 13 to rotate in the bearing sleeve 12.

[0026] When the present technology is used, the bearing sleeve 12 is supported by the mounting base 19, the transmission rod 13 is driven to rotate by the high-power motor 20, the transmission rod 13 stably rotates in the bearing sleeve 12, the transmission rod 13 drives the matching polishing wheel 14 to rotate, and the transmission rod 13 can also drive the polishing large wheel 15 to rotate, and the transmission rod 13 makes the sheet wheel 16 rotate, so that the transmission rod 13 stably rotates in the positioning shaft sleeve 17, the fixed support plate 18 is supported by the mounting base 19, the fixed support plate 18 supports the positioning shaft sleeve 17, and the positioning shaft sleeve 17 positions the transmission rod 13 for transmission polishing.

[0027] The contents not described in detail in the specification all belong to the prior art known to those skilled in the art, and the model parameters of various electric appliances are not specifically limited, and conventional equipment can be used. In the present technical solution, the electric appliance control elements not mentioned belong to the prior art, and therefore are not shown in the drawings, and will not be described here.

[0028] The above only describes preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A precision polishing device for camshafts, comprising a positioning sleeve (1), a support sleeve (2), and a polishing motor (3), characterized in that: The support sleeve (2) is located on one side of the positioning sleeve (1), and the polishing motor (3) is fixedly installed on one side of the support sleeve (2). The output end of the polishing motor (3) is equipped with multiple positioning polishing components. The multi-section positioning and polishing assembly includes a large polishing ring (4), a medium polishing ring (5), a positioning support plate (6), a drive shaft (7), an end (8), a small polishing ring (9), and a bearing sleeve (10). The large polishing ring (4) is rotatably located on one side of the positioning sleeve (1), the medium polishing ring (5) is located on one side of the large polishing ring (4), the bearing sleeve (10) is rotatably installed on one side of the medium polishing ring (5), and the positioning support plate (6) is fixedly connected to the bottom end of the bearing sleeve (10). The transmission shaft (7) is fixedly connected to the output end of the polishing motor (3), the end (8) is fixedly connected to one end of the transmission shaft (7), the small polishing ring (9) is rotatably connected to one side of the outer wall of the bearing sleeve (10), the small polishing ring (9) and the medium polishing ring (5) are both fixedly connected to the transmission shaft (7), and the large polishing ring (4) is fixedly connected to the transmission shaft (7).

2. The camshaft precision polishing device according to claim 1, characterized in that: The bearing sleeve (10) is rotatably connected to the drive shaft (7), and the outer diameter of the small polishing ring (9) is smaller than the outer diameter of the medium polishing ring (5). The vertical cross-sectional shape of the medium-sized polishing ring (5) and the small polishing ring (9) is annular.

3. The camshaft precision polishing device according to claim 1, characterized in that: A linkage plate (11) is fixedly installed on the outer wall of the bearing sleeve (10) and on the side adjacent to the medium polishing ring (5). The positioning sleeve (1) and the support sleeve (2) are both fixedly connected to the linkage plate (11).

4. The camshaft precision polishing device according to claim 1, characterized in that: The bottom end of the positioning sleeve (1) is fixedly installed with a bearing sleeve (12), and the inner wall of the bearing sleeve (12) is connected to a transmission rod (13). The outer wall of the transmission rod (13) is provided with a fitting polishing wheel (14), a polishing wheel (15), and a disc wheel (16) from right to left. The fitting polishing wheel (14), the polishing wheel (15), and the disc wheel (16) are all fixedly connected to the transmission rod (13). A positioning bushing (17) is rotatably connected to the outer wall of the transmission rod (13) near the disc wheel (16). A fixed support plate (18) and a mounting base (19) are provided on one side of the positioning bushing (17) from left to right. The mounting base (19) is fixedly connected to the bearing sleeve (12).

5. The camshaft precision polishing device according to claim 4, characterized in that: The outer diameter of the polishing wheel (15) is larger than that of the outer wall support of the mating polishing wheel (14), and one side of the mating polishing wheel (14) is chamfered.

6. The camshaft precision polishing device according to claim 4, characterized in that: The mounting base (19) and the positioning bushing (17) are both fixedly connected to the fixed support plate (18), and the center point of the inner wall of the positioning bushing (17) is on the same horizontal line as the center point of the transmission rod (13).

7. The camshaft precision polishing device according to claim 6, characterized in that: A high-power motor (20) is installed at one end of the transmission rod (13). The high-power motor (20) is fixedly connected to the positioning sleeve (1). The high-power motor (20) is used to drive the transmission rod (13) to rotate inside the bearing sleeve (12).

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