Polishing device for bicycle frame machining

Abstract

The utility model discloses a polishing device for machining a bicycle frame. The polishing device comprises a polishing mechanism and a clamping mechanism. The clamping mechanism comprises an upper clamping block and a lower clamping block; the two sides of the upper clamping block and the two sides of the lower clamping block are connected with connecting rods. The lower end of the connecting rod is fixedly connected with the lower clamping block; the upper ends of the two connecting rods upwards penetrate through the upper clamping block; a movable plate is fixedly connected between the two connecting rods; symmetrical eccentric wheels are connected between the movable plate and the upper clamping block; and the symmetrical eccentric wheels rotate to drive the upper clamping block and the lower clamping block to move reversely at the same time. By rotating the symmetrical eccentric wheel, the two ends of the symmetrical eccentric wheel extrude and move the upper clamping block and the movable plate at the same time, the upper clamping block and the lower clamping block can move towards the middle by the same distance at the same time, a bicycle frame body is fixed to the center position while being fixed, and the grinding precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transportation tool processing, in particular to a grinding device for processing a bicycle frame. Background Art

[0002] In the process of processing bicycle frames, the connecting ends of the rods need to be polished before welding to facilitate subsequent welding; however, the existing welding devices usually use one polishing block for polishing, and both ends cannot be polished synchronously at the same time. In addition, the limiting effect of the steel pipe during the polishing process is poor, which can easily cause the steel pipe to deviate and cannot be fixed on the center point, affecting the polishing accuracy. Utility Model Content

[0003] The utility model aims to solve the problems in the prior art and proposes a grinding device for processing a bicycle frame.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A grinding device for processing a bicycle frame comprises a grinding mechanism and a clamping mechanism; the clamping mechanism comprises an upper clamping block and a lower clamping block; both sides of the upper clamping block and the lower clamping block are connected with connecting rods; the lower ends of the connecting rods are fixedly connected to the lower clamping block; the upper ends of the two connecting rods pass through the upper clamping block upward; and a moving plate is fixedly connected between the two connecting rods; a symmetrical eccentric wheel is connected between the moving plate and the upper clamping block; the rotation of the symmetrical eccentric wheel simultaneously drives the upper clamping block and the lower clamping block to move in opposite directions.

[0006] Preferably, the clamping ends of the upper clamping block and the lower clamping block are both provided with arc grooves.

[0007] Preferably, one end of the upper clamping block and the lower clamping block is also connected to a movable base plate; the movable base plate is arranged at one end of the clamping mechanism away from the grinding mechanism; and a sliding groove is provided on the movable base plate; the lower ends of the upper clamping block and the lower clamping block are arranged in the sliding groove.

[0008] Preferably, the grinding mechanism includes a screw with forward and reverse threads; one end of the screw is connected to a forward and reverse motor; two sliders are connected to the screw; the two sliders are respectively arranged at the upper and lower ends of the screw; and the two sliders are driven to move relative to each other by the screw.

[0009] Preferably, the two sliding blocks are respectively connected with a first grinding mechanism and a second grinding mechanism; and the grinding plates of the first grinding mechanism and the second grinding mechanism are symmetrically arranged inwardly.

[0010] Preferably, one end of the clamping mechanism away from the grinding mechanism is also connected to a rotating mechanism; the rotating mechanism includes a rotating motor and a rotating shaft; one end of the rotating shaft is connected to the output end of the rotating motor; and the other end of the rotating shaft is fixedly connected to the outer side surface of the movable base plate.

[0011] Preferably, the lower end of the grinding mechanism is connected to a slide rail; the lower end of the screw rod is movably connected to a moving block; the moving block matches the slide groove on the slide rail; the grinding mechanism moves on the slide rail through the moving block.

[0012] Compared with the prior art, the utility model provides a grinding device for processing a bicycle frame, which has the following beneficial effects:

[0013] 1. The grinding device for processing a bicycle frame rotates a symmetrical eccentric wheel so that both ends of the symmetrical eccentric wheel squeeze and move the upper clamp block and the movable plate at the same time, so that the upper clamp block moves downward while the movable plate moves upward, and the movable plate drives the connecting rod and the lower clamp plate to move upward, so that the upper clamp block and the lower clamp block can move toward the middle at the same distance at the same time, and the bicycle frame is fixed at the center position while being fixed, thereby improving the grinding accuracy.

[0014] 2. The grinding device for bicycle frame processing has two symmetrical grinding mechanisms arranged on the screw rod, and the rotation of the screw rod can drive the two symmetrical grinding mechanisms to move in opposite directions, which is convenient for grinding bicycle rods of different thicknesses. A slide rail is arranged at the lower end of the grinding mechanism to facilitate the sliding of the grinding mechanism, making it suitable for bicycle rods of different lengths, thereby increasing the practicality of the entire device.

[0015] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. The utility model has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the clamping mechanism of the utility model;

[0018] Figure 3 It is a side view of the clamping mechanism in the utility model.

[0019] In the figure: 1, clamping mechanism; 11, upper clamping block; 12, lower clamping block; 13, connecting rod; 14, moving plate; 15, symmetrical eccentric wheel; 16, arc groove; 17, moving bottom plate; 171 sliding groove; 21, screw rod; 22, forward and reverse motor; 23, slider; 24, first grinding mechanism; 25, second grinding mechanism; 31, rotating motor; 32, rotating shaft; 41, slide rail; 42, moving block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0022] Reference Figure 1-3 A grinding device for processing a bicycle frame comprises a grinding mechanism and a clamping mechanism 1; the clamping mechanism 1 comprises an upper clamping block 11 and a lower clamping block 12; both sides of the upper clamping block 11 and the lower clamping block 12 are connected with connecting rods 13; the lower end of the connecting rod 13 is fixedly connected to the lower clamping block 12; the upper ends of the two connecting rods 13 pass through the upper clamping block 11 upward; and a movable plate 14 is fixedly connected between the two connecting rods 13; a symmetrical eccentric wheel 15 is connected between the movable plate 14 and the upper clamping block 11; the rotation of the symmetrical eccentric wheel 15 simultaneously drives the upper clamping block 11 and the lower clamping block 12 to move in the opposite direction, wherein the symmetrical eccentric wheel 15 is connected to a rotating rod for easy rotation, and a self-locking structure is added to lock when it is rotated to a certain position. The clamping ends of the upper clamping block 11 and the lower clamping block 12 are both provided with an arc groove 16.

[0023] By rotating the symmetrical eccentric wheel 15, the two ends of the symmetrical eccentric wheel 15 squeeze and move the upper clamping block 11 and the movable plate 14 at the same time, so that the upper clamping block 11 moves downward and the movable plate 14 moves upward. The movable plate 14 drives the connecting rod 13 and the lower clamping plate 12 to move upward, so that the upper clamping block 11 and the lower clamping block 12 can be moved to the middle at the same distance at the same time, thereby completing the fixation of the bicycle frame and fixing it in the center position.

[0024] One end of the upper clamping block 11 and the lower clamping block 12 is also connected to a movable base plate 17; the movable base plate 17 is arranged at one end of the clamping mechanism 1 away from the grinding mechanism; and a sliding groove 171 is provided on the movable base plate 17; the lower ends of the upper clamping block 11 and the lower clamping block 12 are arranged in the sliding groove 171.

[0025] The grinding mechanism includes a screw rod 21 with forward and reverse threads; one end of the screw rod 21 is connected to a forward and reverse motor 22; two sliders 23 are connected to the screw rod 21; the two sliders 23 are respectively arranged at the upper and lower ends of the screw rod 21; and the two sliders 23 are driven by the screw rod 21 to move relative to each other.

[0026] The first grinding mechanism 24 and the second grinding mechanism 25 are respectively connected to the two sliders 23, and the grinding plates of the first grinding mechanism 24 and the second grinding mechanism 25 are symmetrically arranged inward. The first grinding mechanism 24 and the second grinding mechanism 25 both include a motor and a grinding disc, and the motor drives the grinding disc to rotate for grinding.

[0027] The end of the clamping mechanism 1 away from the grinding mechanism is also connected to a rotating mechanism; the rotating mechanism includes a rotating motor 31 and a rotating shaft 32; one end of the rotating shaft 32 is connected to the output end of the rotating motor 31; the other end of the rotating shaft 32 is fixedly connected to the outer side of the movable bottom plate 17. The clamping mechanism 1 is driven to rotate by the rotating mechanism, so that the bicycle rod clamped on the clamping mechanism 1 is rotated, which is convenient for multi-directional grinding.

[0028] The lower end of the grinding mechanism is connected with a slide rail 41; the lower end of the screw rod 21 is movably connected with a moving block 42; the moving block 42 matches the slide groove on the slide rail 41; the grinding mechanism moves on the slide rail 41 through the moving block 42. By arranging two symmetrical grinding mechanisms on the screw rod 21, the two symmetrical grinding mechanisms can be driven to move in opposite directions by the rotation of the screw rod 21, which is convenient for grinding bicycle rods of different thicknesses, and the slide rail 41 is arranged at the lower end of the grinding mechanism to facilitate the sliding of the grinding mechanism, so that it is suitable for bicycle rods of different lengths, thereby increasing the practicality of the entire device.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A grinding device for bicycle frame processing, characterized in that: The invention comprises a grinding mechanism and a clamping mechanism (1); the clamping mechanism (1) comprises an upper clamping block (11) and a lower clamping block (12); both sides of the upper clamping block (11) and the lower clamping block (12) are connected with connecting rods (13); the lower ends of the connecting rods (13) are fixedly connected with the lower clamping block (12); the upper ends of the two connecting rods (13) pass through the upper clamping block (11) upwards; and a movable plate (14) is fixedly connected between the two connecting rods (13); a symmetrical eccentric wheel (15) is connected between the movable plate (14) and the upper clamping block (11); the rotation of the symmetrical eccentric wheel (15) simultaneously drives the upper clamping block (11) and the lower clamping block (12) to move in opposite directions.

2. A grinding device for bicycle frame processing according to claim 1, characterized in that: The clamping ends of the upper clamping block (11) and the lower clamping block (12) are both provided with arc-shaped grooves (16).

3. A grinding device for bicycle frame processing according to claim 1, characterized in that: One end of the upper clamping block (11) and the lower clamping block (12) is also connected to a movable base plate (17); the movable base plate (17) is arranged at one end of the clamping mechanism (1) away from the grinding mechanism; and a sliding groove (171) is provided on the movable base plate (17); the lower ends of the upper clamping block (11) and the lower clamping block (12) are arranged in the sliding groove (171).

4. A grinding device for bicycle frame processing according to claim 1, characterized in that: The grinding mechanism comprises a screw rod (21) provided with forward and reverse threads; one end of the screw rod (21) is connected to a forward and reverse motor (22); two sliders (23) are connected to the screw rod (21); the two sliders (23) are respectively arranged at the upper and lower ends of the screw rod (21); and the two sliders (23) are driven to move relative to each other by the screw rod (21).

5. A grinding device for bicycle frame processing according to claim 4, characterized in that: The two sliding blocks (23) are respectively connected to a first grinding mechanism (24) and a second grinding mechanism (25); and the grinding plates of the first grinding mechanism (24) and the second grinding mechanism (25) are symmetrically arranged inwardly.

6. A grinding device for bicycle frame processing according to claim 3, characterized in that: One end of the clamping mechanism (1) away from the grinding mechanism is also connected to a rotating mechanism; the rotating mechanism comprises a rotating motor (31) and a rotating shaft (32); one end of the rotating shaft (32) is connected to the output end of the rotating motor (31); and the other end of the rotating shaft (32) is fixedly connected to the outer side surface of the movable base plate (17).

7. A grinding device for bicycle frame processing according to claim 4, characterized in that: The lower end of the grinding mechanism is connected to a slide rail (41); the lower end of the screw rod (21) is movably connected to a moving block (42); the moving block (42) matches the slide groove on the slide rail (41); the grinding mechanism moves on the slide rail (41) through the moving block (42).

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