A safety fixture for machining motorcycle crankshafts

Abstract

The present invention relates to the technical field of crankshaft processing, and specifically to a safety clamp for processing motorcycle crankshafts, comprising a bottom plate, a slide groove is provided at one side of the top of the bottom plate, a rack plate is provided at one side of the top of the bottom plate, a first mounting column is installed at the other side of the top of the bottom plate, a slider is provided inside the slide groove for sliding, a second mounting column is installed at the top of the slider, a mounting plate is installed at the corresponding side of the second mounting column, a screw rod is movably screwed inside the mounting plate, a tooth block is provided at the bottom end of the screw rod, a bearing is sleeved at the bottom end of the screw rod, and the bottom end of the screw rod is fixed to the top end of the tooth block through the bearing. The arrangement of components such as the slide groove, the rack plate, the second mounting column, the slider, the mounting plate, the screw rod, the tooth block, the hollow block, the abutment plate and the abutment groove can effectively solve the problem of not being able to conveniently and quickly clamp crankshafts of different specifications and lengths.

Description

Technical Field

[0001] The invention relates to the technical field of crankshaft processing, in particular to a safety clamp for processing a motorcycle crankshaft. Background Art

[0002] The crankshaft is the most important part of the engine. It bears the force from the connecting rod and converts it into torque to output through the crankshaft and drive other accessories on the engine. The motorcycle crankshaft includes a shaft disc and a shaft body. The fixture is used to fix the processing object in the manufacturing process so that it occupies the correct position to accept construction or inspection. It is also called a fixture. In the process of motorcycle crankshaft processing, a special fixture is needed to limit and clamp the motorcycle crankshaft, so as to facilitate the subsequent corresponding processing of the motorcycle crankshaft. However, there are many problems with the existing special fixture, so further improvement is needed.

[0003] The existing safety clamps for processing motorcycle crankshafts have the problem that they cannot conveniently and quickly clamp crankshafts of different specifications and lengths, which brings inconvenience to actual operation; the existing safety clamps for processing motorcycle crankshafts have the problem that after the crankshaft is clamped and fixed, it is not convenient to rotate the crankshaft when processing it, so it is not convenient to process different surfaces of the crankshaft, which brings inconvenience to actual operation. Summary of the invention

[0004] The object of the present invention is to provide a safety fixture for machining a motorcycle crankshaft to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a safety clamp for processing a motorcycle crankshaft, comprising a base plate, a slide groove is provided at one side of the top of the base plate, a rack plate is provided at one side of the top of the base plate, a first mounting column is installed at the other side of the top of the base plate, a slider is provided inside the slide groove for sliding movement, a second mounting column is installed at the top of the slider, a mounting plate is installed at the corresponding side of the second mounting column, a screw rod is movably screwed inside the mounting plate, a tooth block is provided at the bottom end of the screw rod, a placement plate is installed at the top of the first mounting column and the second mounting column, a mounting block is installed at the corresponding side of the two groups of the placement plates, a magnet block is installed at the top of the two groups of the mounting blocks, a hollow block is installed at the top of the two groups of the placement plates, and the two groups of Four groups of sliding rods are installed on the corresponding side of the hollow blocks, four groups of sliding rods are installed on the corresponding side of the two groups of hollow blocks, fixed blocks are installed on the top of the two groups of hollow blocks on one side, and magnet plates are installed on the corresponding side of the two groups of fixed blocks. The number of sliding rods is eight, and the corresponding ends of the eight groups of sliding rods are respectively located inside the corresponding annular grooves, and the two groups of annular grooves are respectively arranged on the corresponding side of the corresponding abutting plates, and the outer sides of the two groups of abutting plates are both installed with hand-held rods at the middle position, and the inner sides of the two groups of abutting plates are provided with abutting grooves at the middle position, and the corresponding other sides of the two groups of hollow blocks are movably screwed with fixing rings through the corresponding four groups of fixing bolts, and limiting rings are installed on the corresponding sides of the two groups of fixing rings, and four groups of rolling balls are arranged on the inner walls of the two groups of limiting rings on one side.

[0006] Preferably, a bearing is sleeved on the bottom end of the screw, and the bottom end of the screw is fixed to the top end of the tooth block through the bearing.

[0007] Preferably, the eight groups of sliding rods are of equal size, and the outer diameters of the eight groups of sliding rods are respectively matched to the distances between the inner walls on both sides of the corresponding annular grooves.

[0008] Preferably, the two groups of limiting rings are equal in size, and the outer diameters of the two groups of limiting rings are respectively matched with the inner diameters of the corresponding hollow blocks, and one end of the two groups of limiting rings passes through the interior of the corresponding hollow blocks.

[0009] Preferably, the number of the rolling balls is eight groups, and the corresponding four groups of rolling balls are arranged in a central symmetric manner with the center point of the corresponding limiting ring as the center point.

[0010] Preferably, the two groups of hollow blocks are equal in size and are arranged at the same horizontal height.

[0011] Preferably, the two groups of abutment plates are of equal size, and iron rods are installed on the sides of the two groups of abutment plates.

[0012] Preferably, the two groups of iron rods are equal in size, and the two groups of iron rods are respectively fixed to the corresponding magnet blocks by adsorption.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The problem of not being able to conveniently and quickly clamp crankshafts of different specifications and lengths can be effectively solved by arranging components such as a slide groove, a rack plate, a second mounting column, a slider, a mounting plate, a screw rod, a tooth block, a hollow block, a retaining plate and a retaining groove.

[0015] 2. The arrangement of the sliding bar magnet plate, the supporting plate, the hand-held rod, the annular groove and the iron rod and other components can effectively solve the problem that after the crankshaft is clamped and fixed, it is inconvenient to rotate it when processing the crankshaft, thereby making it impossible to conveniently process different surfaces of the crankshaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the structure of the main body of the present invention;

[0017] Figure 2 It is a three-dimensional schematic diagram of the structure of the main body of the present invention from another perspective;

[0018] Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle;

[0019] Figure 4 It is a top perspective schematic diagram of the structure of the main body of the present invention;

[0020] Figure 5 for Figure 4 The enlarged schematic diagram of point B in the middle;

[0021] Figure 6 It is a top perspective schematic diagram of the structure of the limit ring of the present invention;

[0022] Figure 7 It is a top perspective schematic diagram of the structure of the abutting plate of the present invention.

[0023] In the figure: 1, bottom plate; 11, slide groove; 12, rack plate; 2, first mounting column; 3, second mounting column; 31, slider; 32, mounting plate; 33, screw; 34, tooth block; 4, placement plate; 41, mounting block; 42, magnet block; 5, hollow block; 51, slide rod; 52, fixed block; 53, magnet plate; 6, supporting plate; 61, hand-held rod; 62, annular groove; 63, supporting groove; 64, iron rod; 7, fixing ring; 71, fixing bolt; 72, limit ring; 73, rolling ball. DETAILED DESCRIPTION

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

[0025] See also Figures 1 to 7 The present invention provides a technical solution: a safety clamp for processing a motorcycle crankshaft, comprising a base plate 1, a slide groove 11 is provided at the top of the base plate 1 on one side, a rack plate 12 is provided at the top of the base plate 1 on one side of the slide groove 11, and a first mounting column 2 is installed at the top of the base plate 1 on the other side.

[0026] A slider 31 is slidingly provided inside the slide groove 11, a second mounting column 3 is installed at the top of the slider 31, a mounting plate 32 is installed on the corresponding side of the second mounting column 3, a screw rod 33 is movably screwed inside the mounting plate 32, a bearing is sleeved on the bottom end of the screw rod 33, and the bottom end of the screw rod 33 is fixed to the top end of the tooth block 34 through the bearing, and a tooth block 34 is provided at the bottom end of the screw rod 33.

[0027] A placing plate 4 is installed on the top of the first mounting column 2 and the second mounting column 3, and a mounting block 41 is installed on the corresponding side of the two groups of placing plates 4, and a magnet block 42 is installed on the top of the two groups of mounting blocks 41. A hollow block 5 is installed on the top of the two groups of placing plates 4. The two groups of hollow blocks 5 are equal in size and are arranged at the same horizontal height. Four groups of slide bars 51 are installed on the corresponding side of the two groups of hollow blocks 5, and four groups of slide bars 51 are installed on the corresponding side of the two groups of hollow blocks 5. A fixed block 52 is installed on one side of the top of the two groups of hollow blocks 5, and a magnet plate 53 is installed on the corresponding side of the two groups of fixed blocks 52. The corresponding magnet plates 53 are respectively located at the upper position of the corresponding abutting plate 6 and coincide with the rotation trajectory of the corresponding iron rod 64. The eight groups of slide bars 51 are equal in size, and the outer diameters of the eight groups of slide bars 51 are respectively adapted to the distances between the inner walls on both sides of the corresponding annular grooves 62.

[0028] There are eight groups of sliding rods 51, and the corresponding ends of the eight groups of sliding rods 51 are respectively located inside the corresponding annular grooves 62, and the two groups of annular grooves 62 are respectively arranged on the corresponding side of the corresponding abutting plates 6, and the outer sides of the two groups of abutting plates 6 are both installed with hand-held rods 61 in the middle, and the inner sides of the two groups of abutting plates 6 are both opened with abutting grooves 63 in the middle. The two groups of abutting plates 6 are equal in size, and the sides of the two groups of abutting plates 6 are both installed with iron rods 64, the two groups of iron rods 64 are equal in size, and the two groups of iron rods 64 are respectively adsorbed and fixed to the corresponding magnet blocks 42.

[0029] The corresponding other sides of the two groups of hollow blocks 5 are movably screwed with fixing rings 7 through corresponding four groups of fixing bolts 71. The corresponding sides of the two groups of fixing rings 7 are installed with limiting rings 72. The two groups of limiting rings 72 are equal in size, and the outer diameters of the two groups of limiting rings 72 are respectively adapted to the inner diameters of the corresponding hollow blocks 5. One ends of the two groups of limiting rings 72 respectively penetrate the interior of the corresponding hollow blocks 5. Four groups of rolling balls 73 are arranged on one side of the inner wall of the two groups of limiting rings 72. The number of rolling balls 73 is eight, and the corresponding four groups of rolling balls 73 are respectively arranged in a central symmetric manner with the center point of the corresponding limiting ring 72 as the center point.

[0030] During use, the user can extend one end of the crankshaft into the corresponding limiting ring 72 set at the top of the first mounting column 2, so that one end of the crankshaft can pass through the interior of the corresponding hollow block 5 and abut against the inner wall of the corresponding abutting groove 63 of the corresponding abutting plate 6. At this time, the corresponding four groups of rolling balls 73 can be arranged in contact with the surface of the corresponding end of the corresponding crankshaft, and then the crankshaft can be placed horizontally with one hand. After that, the user can use the other hand to move and adjust the second mounting column 3 according to the length of the crankshaft. During the movement, the slider 31 will move accordingly inside the slide groove 11, so that the other end of the crankshaft can be extended into the corresponding limiting ring 72 set at the top of the second mounting column 3. , so that the other end of the crankshaft can pass through the interior of the corresponding hollow block 5 and abut against the inner wall of the corresponding abutting groove 63 of the corresponding abutting plate 6. At this time, the corresponding four groups of rolling balls 73 can be arranged in contact with the surface of the corresponding other end of the corresponding crankshaft. At this time, the limit clamping of the crankshaft can be completed, and then the screw rod 33 can be rotated, so that the tooth block 34 can move downward accordingly, and then the tooth block 34 can be meshed and connected with the rack plate 12 accordingly, so that the mounting plate 32 can be fixed, and the second mounting column 3 cannot be moved at will. At this time, the crankshaft can be processed. The above settings and operations can effectively solve the problem of not being able to conveniently and quickly clamp crankshafts of different specifications and lengths.

[0031] When it is necessary to process different parts of the crankshaft, the user can rotate the corresponding abutment plate 6 through the corresponding hand-held rod 61, so that the corresponding iron rod 64 can be separated from the corresponding side of the corresponding magnet block 42. Because the two ends of the crankshaft are abutted against the corresponding abutment groove 63, the crankshaft can rotate accordingly. While rotating, the corresponding four groups of rolling balls 73 can rotate accordingly, so as to prevent the corresponding end of the crankshaft from rubbing against the inner wall of the corresponding limit ring 72, thereby causing wear and affecting the subsequent use of the crankshaft. Correspondingly, the four groups of sliding rods 51 can slide accordingly inside the corresponding annular groove 62, so that the corresponding abutment plate 6 can rotate more stably. When the corresponding iron rod 64 is adsorbed and fixed to the corresponding magnet plate 53, it is rotated to one hundred and eighty degrees. At this time, different surfaces of the crankshaft can be processed.

[0032] When the corresponding four groups of rolling balls 73 inside the corresponding limit ring 72 are damaged and need to be replaced after long-term use, the user can rotate the corresponding four groups of fixing bolts 71 so that the corresponding end of the corresponding four groups of fixing bolts 71 can be separated from the corresponding side of the corresponding hollow block 5. After separation, the user can remove the corresponding limit ring 72 from the inside of the corresponding hollow block 5. When a new limit ring 72 needs to be installed, the user only needs to follow the above operation, and the opposite operation can be performed to install the new limit ring 72 into the inside of the corresponding hollow block 5.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety fixture for machining a motorcycle crankshaft, comprising a base plate (1), characterized in that: A slide groove (11) is provided at one side of the top of the bottom plate (1), a rack plate (12) is provided at one side of the slide groove (11), a first mounting column (2) is installed at the other side of the top of the bottom plate (1), a slider (31) is provided inside the slide groove (11) for sliding, a second mounting column (3) is installed at the top of the slider (31), a mounting plate (32) is installed at the corresponding side of the second mounting column (3), a screw rod (33) is movably screwed inside the mounting plate (32), a tooth block (34) is provided at the bottom end of the screw rod (33), and the screw rod (33) is provided with a tooth block (34). The bottom end of the screw rod (33) is sleeved with a bearing, and the bottom end of the screw rod (33) is fixed to the top end of the tooth block (34) through the bearing. The top ends of the first mounting column (2) and the second mounting column (3) are both installed with a placement plate (4). The corresponding sides of the two groups of placement plates (4) are both installed with a mounting block (41). The top ends of the two groups of mounting blocks (41) are both installed with a magnet block (42). The top ends of the two groups of placement plates (4) are both installed with a hollow block (5). The corresponding sides of the two groups of hollow blocks (5) are both installed with four groups of slide bars (51). The corresponding sides of the two groups of hollow blocks (5) are both installed with four groups of slide bars (51). A fixed block (52) is installed at a position close to one side of the top of the hollow block (5), and a magnet plate (53) is installed at a corresponding side of the two groups of the fixed blocks (52). The number of the sliding rods (51) is eight groups, and the corresponding ends of the eight groups of the sliding rods (51) are respectively located inside the corresponding annular grooves (62). The two groups of the annular grooves (62) are respectively arranged at corresponding sides of the corresponding abutting plates (6). A hand-held rod (61) is installed at a middle position on the outer side of the two groups of the abutting plates (6). A abutting groove (63) is provided at a middle position on the inner side of the two groups of the abutting plates (6). The sizes of the two groups of the abutting plates (6) are similar. etc., and the two groups of side surfaces against the plates (6) are both installed with iron rods (64), the corresponding other sides of the two groups of hollow blocks (5) are both movably screwed with fixing rings (7) through corresponding four groups of fixing bolts (71), and the corresponding one sides of the two groups of fixing rings (7) are both installed with limiting rings (72), the two groups of limiting rings (72) are equal in size, and the outer diameters of the two groups of limiting rings (72) are respectively matched with the inner diameters of the corresponding hollow blocks (5), one end of the two groups of limiting rings (72) respectively penetrates the interior of the corresponding hollow blocks (5), and the inner walls of the two groups of limiting rings (72) are both provided with four groups of rolling balls (73) at one side.

2. The safety fixture for machining a motorcycle crankshaft according to claim 1, characterized in that: The eight groups of slide bars (51) are of equal size, and the outer diameters of the eight groups of slide bars (51) are respectively adapted to the distances between the inner walls on both sides of the corresponding annular grooves (62).

3. The safety fixture for machining a motorcycle crankshaft according to claim 1, characterized in that: The number of the rolling balls (73) is eight groups, and the corresponding four groups of rolling balls (73) are arranged in a centrally symmetrical manner with the center point of the corresponding limiting ring (72) as the center point.

4. The safety fixture for machining a motorcycle crankshaft according to claim 1, characterized in that: The two groups of hollow blocks (5) are equal in size and are arranged at the same horizontal height.

5. The safety fixture for machining a motorcycle crankshaft according to claim 1, characterized in that: The two groups of iron rods (64) are equal in size, and the two groups of iron rods (64) are respectively fixed to the corresponding magnet blocks (42) by adsorption.

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