Bicycle axle polishing and pressing device

Abstract

The utility model discloses a bicycle axle polishing and pressing device which comprises grinding wheels, a supporting frame is arranged between the grinding wheels, an air cylinder is arranged above the supporting frame, the output end of the air cylinder is connected with a transverse rod, the end portion of the transverse rod is detachably connected with an installation support, and the end portion of the installation support is provided with a pressing wheel. The structure is simple, part rotation is facilitated, and normal machining is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of bicycle axle machining, specifically, the utility model relates to a bicycle axle polishing and pressing device. BACKGROUND

[0002] At present, in the polishing process of the bicycle axle, the stability is insufficient and is easy to jump out of the equipment under the rotation contact of the grinding wheel, causing the damage of the part or the equipment, and there is a safety risk, the current clamp is used to fix the part, but the part is difficult to rotate and adjust after being clamped and fixed, the whole outer periphery of the part cannot be evenly polished, and the processing quality and normal production efficiency are affected.

[0003] The patent for invention with the publication number CN106002259A discloses a welding and polishing device for machining bicycle frame on October 12, 2016, which comprises a welding mechanism and a grinding mechanism, and the racks of the welding mechanism and the grinding mechanism are fixedly connected with lead screws at the symmetrical positions of the upper parts of the two racks, each lead screw is provided with a nut, a connecting rod is connected between the two nuts, a fine adjustment rotating shaft is fixedly connected to the lower surface of each nut, and a pneumatic claw is rotatably connected to the fine adjustment rotating shaft. The welding and polishing device for machining bicycle frame cannot solve the above-mentioned technical problems. UTILITARY MODEL

[0004] The utility model aims at the shortage of prior art, and provides a bicycle axle polishing and pressing device which is simple in structure, convenient for part rotation and ensures normal machining process.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0006] The bicycle axle polishing and pressing device comprises a grinding wheel, support frames are arranged between the grinding wheels, a cylinder is arranged above the support frames, a horizontal rod is connected to the output end of the cylinder, an installation support is detachably connected to the end of the horizontal rod, and a pressing wheel is arranged at the end of the installation support.

[0007] The support frames are arranged in pairs and oppositely, recessed parts are arranged at the middle parts of the top ends of the support frames, the recessed parts are of arc-shaped structures, and the pressing wheels are located directly above the recessed parts.

[0008] Fastening bolts are connected between the end of the horizontal rod and the installation support, a waist-shaped hole is arranged at the top of the installation support, and the fastening bolts pass through the waist-shaped hole.

[0009] The installation support is of T-shaped structure, and the pressing wheels are rotatably connected to the bottom of the installation support.

[0010] The bottom of the support frame is of L-shaped structure, and reinforcing ribs are arranged at the side parts of the support frame.

[0011] The grinding wheel is externally provided with a mounting shell, and the air cylinder is fixedly connected to the mounting shell and vertically arranged.

[0012] The grinding wheel is provided with two grinding wheels arranged oppositely.

[0013] The technical effect of the bicycle shaft polishing and pressing device is as follows: the pressing wheel structure provided with power by the air cylinder is arranged above the support frame, so that the two ends of the part are pressed during machining, the production loss and safety risk caused by the part jumping out of the equipment during machining are avoided, and the normal polishing process is ensured; the pressing wheel and the arc-shaped recess part provide stable support for the part and meet the rotation requirement of the part; the detachable structure of the mounting bracket enables the pressing wheel to be adjusted to a certain height, so that the machining of parts with different diameters at both ends is adapted, and the application range is wide; the overall structure is simple, the structure connected to the air cylinder does not interfere with the components of the original equipment in space, and can be arranged and installed on the existing equipment, thereby reducing the equipment upgrading cost. BRIEF DESCRIPTION OF DRAWINGS

[0014] The present specification includes the following drawings, and the shown contents are as follows:

[0015] Figure 1 is a structural schematic view of the bicycle shaft polishing and pressing device of the utility model;

[0016] Figure 2 is a structural schematic view of the air cylinder and its associated structure of the utility model;

[0017] Figure 3 is a structural schematic view of the support frame of the utility model.

[0018] In the figure, the marks are as follows: 1, grinding wheel; 2, support frame; 3, mounting shell; 4, air cylinder; 5, cross rod; 6, mounting bracket; 7, pressing wheel; 8, recess part; 9, fastening bolt; 10, waist-shaped hole; 11, reinforcing rib. DETAILED DESCRIPTION

[0019] The specific embodiments of the utility model are further described in detail by comparing the drawings and the description of the embodiments, the purpose is to help the technical personnel in the field to have a more complete, accurate and deep understanding of the inventive concept and technical scheme of the utility model, and to help its implementation.

[0020] For example, Figures 1 to 3As shown, the bicycle shaft polishing and pressing device comprises grinding wheels 1, support frames 2 arranged between the grinding wheels 1, air cylinders 4 arranged above the support frames 2, horizontal rods 5 connected to the output ends of the air cylinders 4, mounting brackets 6 detachably connected to the end portions of the horizontal rods 5, and pressing wheels 7 arranged at the end portions of the mounting brackets 6. The air cylinders 4 are used to realize the lifting of the pressing wheels 7, and the pressing wheels 7 are used to press the parts during the machining of the parts, and the air cylinders 4 and the mounting brackets 6 do not affect the feeding and discharging of the parts. The air cylinders 4 and the mounting brackets 6 are arranged above the support frames 2, and do not occupy the mounting space of the original equipment components, and do not interfere with the grinding wheels 1. Therefore, the existing equipment can be directly modified, and the equipment upgrading cost is reduced. The structure is simple, and the horizontal rods 5 and the mounting brackets 6 can be machined by using waste steel materials.

[0021] As shown in the drawings, Figures 1 to 3 The support frames 2 are arranged in pairs and oppositely, the top portions of the support frames 2 are provided with recesses 8, the recesses 8 are arc-shaped structures, and the pressing wheels 7 are arranged above the recesses 8. When the parts are placed, the two ends of the parts are supported by the arc-shaped surfaces of the recesses 8, and the top portions of the parts are contacted by the pressing wheels 7. That is, the parts are supported by multiple points, and the stability during the machining process is reliable. Since the pressing wheels 7 are rotatably connected to the mounting brackets 6, the pressing wheels 7 do not transmit the torque to the output ends of the air cylinders 4, the influence of the rotation of the parts driven by the grinding wheels 1 on the stability of the air cylinders 4 is eliminated, and the stable operation of the air cylinders 4 is ensured. The surfaces of the recesses 8 are made of a material with low friction coefficient, so that the parts can rotate between the recesses 8 and the pressing wheels 7 after the parts are pressed. After the parts are pressed, even if the parts rotate under the action of the grinding wheels 1, the parts will not jump out of the support frames 2, and the rotation effect can be used to uniformly polish the outer periphery of the parts.

[0022] As shown in the drawings, Figure 2 The end portions of the horizontal rods 5 are connected to the mounting brackets 6 by fastening bolts 9, the top portions of the mounting brackets 6 are provided with waist-shaped holes 10, and the fastening bolts 9 pass through the waist-shaped holes 10. When the outer diameters of the shaft heads of some products at two ends are different, the installation heights of the two mounting brackets 6 can be adjusted by the waist-shaped holes 10, so that the two shaft heads can be contacted by the pressing wheels 7, and the bottom portions of the support frames 2 supporting the shaft heads with small outer diameters are increased by adjusting shims to satisfy the horizontal placement of the parts.

[0023] As shown in the drawings, Figure 2 The mounting brackets 6 are T-shaped structures, and the pressing wheels 7 are rotatably connected to the bottom portions of the mounting brackets 6. The T-shaped mounting brackets 6 are convenient for simultaneously mounting two pressing wheels 7, and compared with a single pressing wheel 7, the stability of the pressing and supporting is improved.

[0024] As shown in the drawings, Figure 3As shown, the bottom of the support frame 2 is L-shaped structure, the side of the support frame 2 is provided with reinforcing ribs 11. The bottom of the support frame 2 is fixed on the machine table by two bolts, and the adjusting washer can be used to ensure that the axis of the part placed on the recess 8 is horizontal. The bottom of the support frame 2 is designed as L-shaped, which expands the contact area with the machine table, and is beneficial to improve the stability, and the side is also provided with reinforcing ribs 11 to improve the structural strength.

[0025] As shown in the drawings, Figure 1 As shown, the grinding wheel 1 is provided with a mounting shell 3, and the cylinder 4 is fixedly connected to the mounting shell 3. The cylinder 4 is vertically arranged. The above structure can utilize the original structure of the equipment to reduce the occupied space of the cylinder 4 and the space interference to the nearby structure,

[0026] As shown in the drawings, Figure 1 Two grinding wheels 1 are provided, and the two grinding wheels 1 are oppositely arranged. The two grinding wheels 1 are used synchronously, which can improve the machining efficiency of the part. One of the grinding wheels 1 can be used as a guide wheel to assist the rotation of the part.

[0027] The working process is as follows: according to the outer diameter of the shaft head of the current batch product, the position of the mounting bracket 6 relative to the fastening bolt 9 is adjusted. Before the equipment is started, the ends of the part to be machined are placed on the recess 8 of the support frame 2. The equipment is started, the gas source supplies gas to the cylinder 4, the piston rod of the cylinder 4 pushes the cross rod 5 and the mounting bracket 6 to move downward, so that the pressure wheel 7 contacts the end of the part, and the grinding wheel 1 also operates synchronously to polish the outer periphery of the part. The operator can manually or use a tool to rotate the shaft head part, so that the part is uniformly polished. After the polishing process is completed, each mechanism is reset or stopped, and the machining of the next part can be performed.

[0028] The bicycle shaft polishing and pressing device is provided with a pressure wheel 7 structure driven by a cylinder 4 above the support frame 2, which realizes the pressing of the two ends of the part during machining, avoids the production loss and safety risk caused by the part jumping out of the equipment during machining, and ensures the normal progress of the polishing process. The pressure wheel 7 and the arc-shaped recess 8 provide stable support for the part, while meeting the rotation demand of the part. The mounting bracket 6 adopts a detachable structure, so that the pressure wheel 7 can be adjusted to a certain height to adapt to the machining of parts with different diameters at both ends, and has a wide range of application. The overall structure is simple, the structure connected to the cylinder 4 has no space interference with the original equipment components, can be arranged and installed on the existing equipment, and reduces the equipment upgrading cost.

[0029] The above has been described by way of example with reference to the drawings. Obviously, the specific implementation of the present application is not limited to the above manner. As long as various non-essential improvements are made by adopting the method concept and technical scheme of the present application, or the above concept and technical scheme of the present application is directly applied to other occasions without improvement, they are all within the protection scope of the present application.

Claims

1. A bicycle axle polishing and pressing device comprising a grinding wheel (1), characterized in that: The grinding wheel (1) is provided with a support frame (2), the support frame (2) is provided with a cylinder (4) above, the cylinder (4) is connected with a cross rod (5) at the output end, the cross rod (5) is detachably connected with a mounting bracket (6) at the end, the mounting bracket (6) is provided with a pressure roller (7) at the end.

2. The bicycle axle polishing and compacting device according to claim 1, wherein: The support frame (2) is provided with two, the two support frames (2) are oppositely arranged, the support frame (2) is provided with a recess (8) at the top middle part, the recess (8) is an arc structure, and the pressure roller (7) is located directly above the recess (8).

3. The bicycle axle polishing and compacting device according to claim 2, wherein: The cross rod (5) is connected with a fastening bolt (9) at the end and the mounting bracket (6), the mounting bracket (6) is provided with a waist-shaped hole (10) at the top, and the fastening bolt (9) passes through the waist-shaped hole (10).

4. A bicycle axle polishing and compacting device according to any one of claims 1 to 3, wherein: The mounting bracket (6) is a T-shaped structure, and the pressure roller (7) is rotatably connected to the bottom of the mounting bracket (6).

5. The bicycle axle polishing and compacting device according to claim 4, wherein: The bottom of the support frame (2) is an L-shaped structure, and the support frame (2) is provided with a reinforcing rib (11) on the side.

6. The bicycle axle polishing and compacting device according to claim 4, wherein: The grinding wheel (1) is provided with a mounting shell (3) outside, the cylinder (4) is fixedly connected to the mounting shell (3), and the cylinder (4) is vertically arranged.

7. The bicycle axle polishing and compacting device according to claim 6, wherein: The grinding wheel (1) is provided with two, and the two grinding wheels (1) are oppositely arranged.

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