Inner diameter grinding equipment for bicycle hub production

Abstract

The utility model discloses inner diameter grinding equipment for bicycle hub production, which comprises a base, a clamp mechanism and a grinding tool mechanism, vertical frames are mounted on two sides of the top of the base, and the clamp mechanism is mounted between the two vertical frames; the clamp mechanism comprises a top plate and an electric gripper; the electric gripper is mounted at the bottom of the top plate; the grinding tool mechanism comprises a chassis, a second motor is installed on the chassis, a rotating shaft is fixedly connected to an output shaft of the second motor, a plurality of side plates are inserted into the surface of the rotating shaft, hub grinding plates are arranged on the outer sides of the side plates, an insertion hole is formed in one end of the rotating shaft, and an insertion rod is inserted into the insertion hole. According to the inner diameter grinding equipment for bicycle hub production, by arranging the hollow rotating shaft, the side plates inserted into the hollow rotating shaft in a matched mode and the replaceable inserting rods, the inserting rods with different diameters can be replaced conveniently, and therefore the grinding diameter of the hub grinding plate is adjusted; and by arranging the clamp mechanism and the grinding tool mechanism which are of an up-and-down structure, chippings generated during hub grinding can naturally fall down, and cleaning after grinding is facilitated.

Description

Technical Field

[0001] The utility model relates to the field of bicycle hub production equipment, in particular to inner diameter grinding equipment for bicycle hub production. Background Art

[0002] The hub is the barrel outside the bicycle axle that connects to the spokes, usually called the hub skin. Depending on the number of spokes, there are generally 3-way and 5-way arrangements. There are two types of hubs: iron hubs and aluminum hubs. During the production process of bicycle hubs, the inner diameter needs to be polished.

[0003] The patent document with the Chinese patent announcement number CN213970300U has an authorization announcement date of August 7, 2021. It discloses an inner diameter grinding device for bicycle hub production, which includes an AC motor, an emery cloth grinding roller, a fixed top plate, an electric push rod, a fixed plate, a lifting rod, a support sleeve rod and a positioning base. A support sleeve rod is welded on the left side of the upper end face of the operating table, and a lifting rod is set inside the support sleeve rod. A fixed plate is welded on the upper end face of the lifting rod, and an electric push rod is installed in the middle position of the right end face of the fixed plate. A positioning base is welded on the lower side of the right end face of the connecting side plate, and an AC motor is installed on the upper side of the right end face of the side vertical plate. An emery cloth grinding roller is installed on the left side of the AC motor. This design solves the problem that the original grinding device does not have adjustable ability and is inconvenient to use. The utility model has a reasonable structure and adjustable ability, which is convenient for grinding the inner diameter of the bicycle hub and has strong practicality.

[0004] It can be seen from the above application that the existing inner diameter grinding equipment for bicycle hub production can rarely adjust the size of the inner diameter, and it is inconvenient to replace the grinding tool. In addition, most of the grinding equipment is lateral grinding, which easily leaves metal debris in the bicycle hub during grinding and is inconvenient to clean. Therefore, an inner diameter grinding equipment for bicycle hub production is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an inner diameter grinding device for the production of bicycle hubs. By setting a hollow rotating shaft, cooperating with side plates inserted therein and replaceable plug rods, it is convenient to replace plug rods of different diameters, thereby adjusting the grinding diameter of the hub grinding plate; by setting a clamp mechanism and a grinder mechanism of upper and lower structures, debris generated when grinding the hub can fall naturally, which is convenient for cleaning after grinding.

[0006] In order to achieve the above-mentioned purpose, the main technical scheme adopted by the utility model is: an inner diameter grinding device for bicycle hub production, comprising: a base, a clamp mechanism and a grinding tool mechanism, wherein vertical frames are installed on both sides of the top of the base, the clamp mechanism is installed between the two vertical frames, the clamp mechanism is slidably connected to the vertical frames, and the grinding tool mechanism is installed on the top of the base;

[0007] The clamp mechanism comprises a top plate and an electric gripper, wherein the electric gripper is mounted at the bottom of the top plate, a limit plate is provided at the bottom of the top plate, a plurality of limit slots are provided on the limit plate, and the electric gripper passes through the limit slots;

[0008] The grinding tool mechanism includes a chassis and a rotating shaft. A second motor is installed on the chassis. The rotating shaft is fixedly connected to the output shaft of the second motor. The rotating shaft is a hollow structure. Several side panels are inserted on the surface of the rotating shaft. A hub grinding plate is provided on the outer side of the side plate. The surface of the hub grinding plate is arc-shaped. A socket is provided on the end of the rotating shaft away from the second motor. A rod is inserted in the socket. The rod is a replaceable rod. A grinding head is provided on the end of the rod away from the second motor.

[0009] Preferably, an infrared sensor switch is installed at the bottom of the limit plate, the infrared sensor switch is electrically connected to the electric gripper, and the electric gripper is controlled by the infrared sensor switch.

[0010] Preferably, a slide groove is opened on the inner side of the two upright frames, a cavity is opened inside the upright frames, a spring is arranged in the cavity, side columns are integrally formed on both sides of the top plate, the side columns pass through the slide groove and are inserted in the cavity, and the spring is at the bottom of the side columns.

[0011] Preferably, a telescopic slot is provided at the bottom of the side column, a telescopic rod is installed at the bottom of the cavity, and the top end of the telescopic rod is inserted into the telescopic slot.

[0012] Preferably, both sides of the bottom of the top plate are rotatably connected to reinforcement rods, and the reinforcement rod is rotatably connected to a side clamping plate at the end away from the top plate. A torsion spring is provided at the connection between the reinforcement rod and the top plate, and the torsion spring clamps the reinforcement rod between the vertical frames.

[0013] Preferably, rubber anti-slip patterns are provided on the inner side of the side clamping plate.

[0014] Preferably, the chassis is a truncated cone structure with a narrow upper portion and a wide lower portion.

[0015] Preferably, a limiting slot is provided in the insertion hole, and a limiting plug block is integrally formed at one end of the insertion rod away from the grinding head, and the limiting plug block can be embedded in the limiting slot.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The inner diameter grinding equipment for producing bicycle hubs is provided with a hollow rotating shaft, which cooperates with the side plates and replaceable plug rods inserted therein, so that plug rods of different diameters can be replaced to adjust the grinding diameter of the hub grinding plate; by providing a clamp mechanism and a grinder mechanism of upper and lower structures, the debris generated when the hub is ground can fall naturally, which is convenient for cleaning after grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view schematic diagram of the inner diameter grinding device for producing a bicycle hub of the utility model;

[0019] Figure 2 It is a side cross-sectional schematic diagram of a grinding tool mechanism in the inner diameter grinding equipment for producing a bicycle hub of the utility model;

[0020] Figure 3 It is a top cross-sectional schematic diagram of a grinding tool mechanism in the inner diameter grinding equipment for producing a bicycle hub of the utility model;

[0021] Figure 4 It is a three-dimensional schematic diagram of a clamp mechanism in the inner diameter grinding equipment for producing a bicycle hub of the utility model;

[0022] Figure 5 The utility model is a cross-sectional schematic diagram of a central frame of an inner diameter grinding device for producing a bicycle hub.

[0023] In the figure: 10, base; 11, stand; 111, slide; 12, cavity; 13, spring; 14, telescopic rod; 20, top plate; 201, side column; 202, telescopic slot; 21, limit plate; 211, limit slot; 212, infrared sensor switch; 22, electric gripper; 23, reinforcement rod; 24, side clamp; 30, chassis; 31, second motor; 32, rotating shaft; 33, side plate; 34, hub grinding plate; 35, jack; 351, limit slot; 36, plug rod; 361, grinding head; 362, limit plug. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 5A bicycle hub inner diameter grinding device comprises: a base 10, a clamping mechanism and a grinding mechanism, wherein two sides of the top of the base 10 are provided with vertical frames 11, the clamping mechanism is installed between the two vertical frames 11, the clamping mechanism and the vertical frames 11 are slidably connected, the grinding mechanism is installed on the top of the base 10, a slide groove 111 is provided on the inner side of the two vertical frames 11, a cavity 12 is provided inside the vertical frame 11, a spring 13 is provided in the cavity 12, and side springs 13 are integrally formed on both sides of the top plate 20. The column 201, the side column 201 passes through the slide groove 111 and is inserted into the cavity 12, the spring 13 is at the bottom of the side column 201, the inner sides of the two frames 11 are provided with a slide groove 111, the frame 11 is provided with a cavity 12, the cavity 12 is provided with a spring 13, the top plate 20 is integrally formed with side columns 201 on both sides, the side column 201 passes through the slide groove 111 and is inserted into the cavity 12, the spring 13 is at the bottom of the side column 201, which can improve the stability of the top plate 20;

[0026] The clamp mechanism includes a top plate 20 and an electric gripper 22. The electric gripper 22 is mounted at the bottom of the top plate 20. A limit plate 21 is disposed at the bottom of the top plate 20. A plurality of limit slots 211 are formed on the limit plate 21. The electric gripper 22 passes through the limit slots 211. An infrared sensor switch 212 is mounted at the bottom of the limit plate 21. The infrared sensor switch 212 is electrically connected to the electric gripper 22. The electric gripper 22 is controlled by the infrared sensor switch 212. When the infrared sensor switch 212 senses that the hub is placed in the limit slot, the electric gripper 22 is electrically connected to the hub. When the bottom of the positioning plate 21 is reached, the electric gripper 22 is controlled to start, and the electric gripper 22 clamps the hub. Both sides of the bottom of the top plate 20 are rotatably connected with reinforcement rods 23. The reinforcement rod 23 is rotatably connected with a side clamping plate 24 at one end away from the top plate 20. A toggle spring is provided at the connection between the reinforcement rod 23 and the top plate 20. The toggle spring clamps the reinforcement rod 23 between the vertical frames 11. The inner side of the side clamping plate 24 is provided with rubber anti-skid patterns. After the hub is fixed, the reinforcement rod 23 drives the side clamping plate 24 to clamp the hub, which can improve the stability of the hub during grinding.

[0027] The grinding tool mechanism includes a chassis 30 and a rotating shaft 32. A second motor 31 is installed on the chassis 30. The rotating shaft 32 is fixedly connected to the output shaft of the second motor 31. The rotating shaft 32 is a hollow structure. A plurality of side plates 33 are inserted on the surface of the rotating shaft 32. The side plates 33 are integrally formed with protrusions. A groove corresponding to the protrusion is opened on the inner wall of the rotating shaft 32. The protrusion limits the side plate 33 from completely separating from the rotating shaft 32 in the groove. A hub grinding plate 34 is provided on the outer side of the side plate 33. The surface of the hub grinding plate 34 is arc-shaped. A hub grinding plate 34 is opened on the end of the rotating shaft 32 away from the second motor 31. There is a socket 35, in which a rod 36 is inserted. The rod 36 is a replaceable rod of different diameters. A grinding head 361 is provided at the end of the rod 36 away from the second motor 31. A limiting slot 351 is provided in the socket 35. A limiting block 362 is integrally formed at the end of the rod 36 away from the grinding head 361. The limiting block 362 can be embedded in the limiting slot 351 to facilitate the fixing of the rod 36 in the socket 35. The chassis 30 is a frustum-shaped structure with a narrow upper portion and a wide lower portion, which can allow the debris generated during grinding to fall naturally to the bottom.

[0028] Structural principle:

[0029] like Figure 1-Figure 5 As shown, when in use, insert the insertion rod 36 corresponding to the inner diameter of the hub to be polished into the socket 35, and then place the hub at the bottom of the limit plate 21. When the infrared sensor switch 212 senses that the hub is placed at the bottom of the limit plate 21, the electric gripper 22 is controlled to clamp the hub, and then the second motor 31 is started to push the top plate 20 down, and the hub polishing plate 34 enters the hub. When the grinding tool mechanism polishes the hub, the debris generated naturally falls to the bottom of the chassis 30.

[0030] In summary, the inner diameter grinding equipment for producing the bicycle hub, by providing a hollow rotating shaft 32, cooperating with the side plate 33 inserted therein and the replaceable insert rod 36, is convenient for replacing the insert rods 36 of different diameters, thereby adjusting the grinding diameter of the hub grinding plate 34; by providing a clamp mechanism and a grinder mechanism of the upper and lower structures, the debris generated during the grinding of the hub can fall naturally, which is convenient for cleaning after grinding.

[0031] Parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An inner diameter grinding device for bicycle hub production, characterized in that: include: A base (10), a clamp mechanism and a mold mechanism, wherein vertical frames (11) are installed on both sides of the top of the base (10), the clamp mechanism is installed between the two vertical frames (11), the clamp mechanism is slidably connected to the vertical frames (11), and the mold mechanism is installed on the top of the base (10); The clamp mechanism comprises a top plate (20) and an electric gripper (22), wherein the electric gripper (22) is mounted on the bottom of the top plate (20), a limiting plate (21) is provided at the bottom of the top plate (20), a plurality of limiting grooves (211) are formed on the limiting plate (21), and the electric gripper (22) passes through the limiting grooves (211); The grinding tool mechanism comprises a chassis (30) and a rotating shaft (32), a second motor (31) is mounted on the chassis (30), the rotating shaft (32) is fixedly connected to the output shaft of the second motor (31), the rotating shaft (32) is a hollow structure, a plurality of side plates (33) are inserted on the surface of the rotating shaft (32), a hub grinding plate (34) is provided on the outer side of the side plate (33), the surface of the hub grinding plate (34) is arc-shaped, a plug hole (35) is provided on the end of the rotating shaft (32) away from the second motor (31), an insertion rod (36) is inserted in the insertion hole (35), the insertion rod (36) is a replaceable insertion rod, and a grinding head (361) is provided on the end of the insertion rod (36) away from the second motor (31); An infrared sensor switch (212) is installed at the bottom of the limit plate (21), the infrared sensor switch (212) is electrically connected to the electric gripper (22), and the electric gripper (22) is controlled by the infrared sensor switch (212); A slide groove (111) is provided on the inner side of the two upright frames (11), a cavity (12) is provided inside the upright frames (11), a spring (13) is provided in the cavity (12), side columns (201) are integrally formed on both sides of the top plate (20), the side columns (201) pass through the slide groove (111) and are inserted into the cavity (12), and the spring (13) is at the bottom of the side columns (201).

2. The inner diameter grinding device for bicycle hub production according to claim 1, characterized in that: A telescopic slot (202) is provided at the bottom of the side column (201), a telescopic rod (14) is installed at the bottom of the cavity (12), and the top end of the telescopic rod (14) is inserted into the telescopic slot (202).

3. The inner diameter grinding device for bicycle hub production according to claim 1, characterized in that: Both sides of the bottom of the top plate (20) are rotatably connected to reinforcement rods (23), and the reinforcement rod (23) is rotatably connected to a side clamping plate (24) at one end away from the top plate (20). A torsion spring is provided at the connection between the reinforcement rod (23) and the top plate (20), and the torsion spring clamps the reinforcement rod (23) between the upright frames (11).

4. The inner diameter grinding device for producing a bicycle hub according to claim 3, characterized in that: The inner side of the side clamping plate (24) is provided with rubber anti-skid patterns.

5. The inner diameter grinding device for bicycle hub production according to claim 1, characterized in that: The chassis (30) is a truncated cone-shaped structure with a narrow upper portion and a wide lower portion.

6. The inner diameter grinding device for producing a bicycle hub according to any one of claims 1 to 5, characterized in that: A limiting slot (351) is provided in the insertion hole (35), and a limiting plug block (362) is integrally formed at one end of the insertion rod (36) away from the grinding head (361), and the limiting plug block (362) can be embedded in the limiting slot (351).

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