Crank shaft and crank positioning tool

Abstract

The utility model discloses a crank shaft and crank positioning tool, and relates to the field of crank shaft and crank rough machining equipment. The device comprises a positioning table, the top surface of which is provided with a crank clamping mechanism used for clamping and positioning the two ends of the crank; the shaft body limiting device is placed on the top face of the positioning table, and a positioning groove matched with a crank shaft body of the crank shaft crank is formed in one side face of the shaft body limiting device. The purpose of rapidly and accurately positioning and clamping the crank shaft and the crank is achieved.

Description

Technical Field

[0001] The utility model relates to the field of rough processing equipment for a crankshaft and a crank, in particular to a positioning tool for a crankshaft and a crank. Background Art

[0002] At present, when processing the crankshaft, due to its special shape, it cannot be processed by ordinary turning, and can only be processed by a special copying lathe, which requires a large investment in equipment. In addition, a marking process needs to be added before processing, which requires high skills of the operator.

[0003] How to process the shape of the axle crank on a lathe that cannot perform rotary turning and has no profiling is the key to reducing costs and increasing efficiency for current factories. Utility Model Content

[0004] The utility model aims to provide a crankshaft crank positioning tool to achieve the purpose of quickly and accurately positioning and clamping the crankshaft crank.

[0005] In order to achieve the above purpose, the utility model adopts the following technical means:

[0006] A crankshaft crank positioning tool, comprising:

[0007] The positioning platform has a crankshaft clamping mechanism on the top surface, which is used to clamp and position the two ends of the crankshaft;

[0008] The shaft limiting device is placed on the top surface of the positioning platform, and one side surface of the shaft limiting device is configured with a positioning groove matching the crank shaft of the crank crank.

[0009] Preferably, the shaft limiting device comprises a plate body, the bottom surface of the plate body is arranged to fit with the top surface of the positioning platform, and the positioning groove is provided on one side of the plate body.

[0010] Furthermore, the board body is provided with a horizontally penetrating holding channel for moving the board body by hand.

[0011] Furthermore, the crankshaft-crank clamping mechanism comprises two clamping devices arranged opposite to each other;

[0012] The clamping device includes a clamping base that is detachably mounted on the top surface of the positioning platform, the top surface of the clamping base is configured with a first clamping groove, a clamping cover is detachably mounted above the clamping base, the bottom surface of the clamping cover is configured with a second clamping groove, the first clamping groove and the second clamping groove are spliced ​​to form an annular clamping cavity, and the annular clamping cavity is used to clamp the end of the crankshaft crank.

[0013] Furthermore, one side of the clamping cover is hinged to one side of the clamping base, a locking rod is hinged on the side of the clamping mechanism opposite to the hinged portion, and an embedding groove is constructed on the side of the clamping cover opposite to the hinged portion. When the clamping cover is buckled and fixed with the clamping base, the locking rod is embedded in the embedding groove, and a locking nut is threadedly installed on the locking rod.

[0014] Furthermore, inner walls of the first clamping groove and the second clamping groove are both covered with rubber pads.

[0015] Furthermore, the annular clamping cavities on the two clamping devices are coaxially arranged.

[0016] During use, the utility model has the following beneficial effects:

[0017] When in use, clamp the two ends of the crankshaft crank on the crankshaft crank clamping mechanism, then hold the shaft body limiting device, let the positioning groove of the shaft body limiting device face the shaft body, rotate and adjust the crankshaft, the crankshaft shaft of the crankshaft crank fits with the positioning groove, and the bottom surface of the shaft body limiting device fits with the positioning platform. Then use the crankshaft crank clamping mechanism to lock the crankshaft crank, and then take out the shaft body limiting device, so that the first side of the crankshaft crank can be processed. After the processing is completed, loosen the crankshaft crank clamping mechanism, let the shaft body limiting device limit the other shaft body of the crankshaft crank, let the crankshaft crank rotate to the second state, then lock the crankshaft crank again, and take out the shaft body limiting device, so that the second side of the crankshaft crank can be processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0019] Figure 2 It is a side structural schematic diagram of the utility model.

[0020] Figure 3 It is a structural schematic diagram of the shaft limiting device of the utility model.

[0021] Among them, 1-positioning platform, 2-axle crank clamping mechanism, 3-axis limit device, 4-positioning groove, 5-holding channel, 6-clamping device, 7-clamping base, 8-first clamping groove, 9-pressing cover, 10-second clamping groove, 11-annular clamping cavity, 12-locking rod, 13-locking nut, 14-rubber pad. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0026] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Please refer to Figures 1 to 3As shown, a crankshaft crank positioning tool comprises:

[0029] The positioning platform 1 has a crankshaft clamping mechanism 2 on the top surface, which is used to clamp and position the two ends of the crankshaft;

[0030] The shaft limiting device 3 is placed on the top surface of the positioning platform 1, and one side surface of the shaft limiting device 3 is configured with a positioning groove 4 matching the crank shaft of the crank crank.

[0031] In this way, when in use, the two ends of the crankshaft crank are clamped on the crankshaft crank clamping mechanism 2, and then the shaft body limiting device 3 is held, so that the positioning groove 4 of the shaft body limiting device 3 faces the shaft body, and the crankshaft is rotated and adjusted, so that the crankshaft shaft of the crankshaft crank fits with the positioning groove 4, and the bottom surface of the shaft body limiting device 3 fits with the positioning platform 1. Then, the crankshaft crank is locked by the crankshaft crank clamping mechanism 2, and then the shaft body limiting device 3 is taken out, and the first surface of the crankshaft crank can be processed. After the processing is completed, the crankshaft crank clamping mechanism 2 is loosened, and the shaft body limiting device 3 is allowed to limit the other shaft body of the crankshaft crank, and the crankshaft crank is rotated to the second state, and then the crankshaft crank is locked again, and the shaft body limiting device 3 is taken out, so that the second surface of the crankshaft crank can be processed.

[0032] Specifically, the shaft limiting device 3 includes a plate body, the bottom surface of the plate body is arranged to fit the top surface of the positioning platform 1, and the positioning groove 4 is provided on one side of the plate body.

[0033] In order to facilitate the movement of the shaft limiting device 3, a horizontally penetrating holding channel 5 is also provided on the plate body for moving the plate body by hand.

[0034] Furthermore, the crankshaft clamping mechanism 2 includes two clamping devices 6 arranged opposite to each other;

[0035] The clamping device 6 includes a clamping base 7 that is detachably mounted on the top surface of the positioning platform 1, the top surface of the clamping base 7 is configured with a first clamping groove 8, a clamping cover 9 is detachably mounted above the clamping base 7, the bottom surface of the clamping cover 9 is configured with a second clamping groove 10, the first clamping groove 8 and the second clamping groove 10 are spliced ​​together to form an annular clamping cavity 11, and the annular clamping cavity 11 is used to clamp the end of the crankshaft crank.

[0036] In addition, one side of the clamping cover 9 is hinged to one side of the clamping base 7, and a locking rod 12 is hinged on the side of the clamping mechanism opposite to the hinged part. An embedding groove is constructed on the side of the clamping cover 9 opposite to the hinged part. When the clamping cover 9 is buckled and fixed with the clamping base 7, the locking rod 12 is embedded in the embedding groove, and a locking nut 13 is threadedly installed on the locking rod 12.

[0037] This makes it easier to clamp the crankshaft.

[0038] The inner walls of the first clamping groove 8 and the second clamping groove 10 are both covered with rubber pads 14 .

[0039] Furthermore, on the one hand, the tightening effect on the crankshaft is increased, and on the other hand, the wear of the shaft head during the rotation of the crankshaft is avoided.

[0040] Furthermore, the annular clamping cavities 11 on the two clamping devices 6 are coaxially arranged.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A crankshaft positioning tool, characterized in that: include: A positioning platform (1) has a top surface formed with a crankshaft clamping mechanism (2) for clamping and positioning the two ends of the crankshaft; The shaft limiting device (3) is placed on the top surface of the positioning platform (1), and one side surface of the shaft limiting device is provided with a positioning groove (4) matching the shaft of the crankshaft crank.

2. The crankshaft positioning tool according to claim 1, characterized in that: The shaft limiting device (3) comprises a plate body, the bottom surface of the plate body is arranged to fit the top surface of the positioning platform (1), and the positioning groove (4) is provided on one side of the plate body.

3. The crankshaft positioning tool according to claim 2, characterized in that: The plate body is also provided with a horizontally penetrating holding channel (5) for moving the plate body by hand.

4. The crankshaft positioning tool according to claim 1, characterized in that: The crankshaft clamping mechanism (2) comprises two clamping devices (6) arranged opposite to each other; The clamping device (6) comprises a clamping base (7) which is detachably mounted on the top surface of the positioning platform (1); the top surface of the clamping base (7) is provided with a first clamping groove (8); a clamping cover (9) is detachably mounted above the clamping base (7); the bottom surface of the clamping cover (9) is provided with a second clamping groove (10); the first clamping groove (8) and the second clamping groove (10) are spliced ​​to form an annular clamping cavity (11); the annular clamping cavity (11) is used to clamp the end of the crankshaft.

5. The crankshaft positioning tool according to claim 4, characterized in that: One side of the clamping cover (9) is hinged to one side of the clamping base (7); a locking rod (12) is hinged to the side of the clamping mechanism opposite to the hinged portion; an embedding groove is configured on the side of the clamping cover (9) opposite to the hinged portion; when the clamping cover (9) is fastened and fixed to the clamping base (7), the locking rod (12) is embedded in the embedding groove; and a locking nut (13) is threadedly mounted on the locking rod (12).

6. The crankshaft positioning tool according to claim 4, characterized in that: The inner walls of the first clamping groove (8) and the second clamping groove (10) are both covered with rubber pads (14).

7. The crankshaft positioning tool according to claim 4, characterized in that: The annular clamping cavities (11) on the two clamping devices (6) are coaxially arranged.

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