A crankshaft drilling, reaming and milling jig

Abstract

The utility model relates to a tool fixture, concretely relates to a crankshaft drill, hinge, mill clamp, including bottom plate and stand, the stand is fixed on the bottom plate perpendicularly, sets up a plurality of struts, shaft body fixing device, crank handle clamping device and axle head fixing device from below to top in proper order on the stand, the shaft body fixing device includes first fixed plate and first pressure plate mechanism, the upper board surface of first fixed plate is equipped with the adjusting plate, the upper board surface of adjusting plate is equipped with a plurality of counterbore grooves, every counterbore groove is equipped with the strip-shaped through -hole, adjusting plate is fixedly connected with first fixed plate through strip-shaped through -hole setting bolt, adjusting plate can carry out position fine adjustment and can replace the size of different thickness to adapt to work piece, adopt the scheme of a kind of crankshaft drill, hinge, mill clamp of the utility model has the advantages of positioning stable, convenient operation and strong versatility.

Description

Technical Field

[0001] This utility model relates to a tooling fixture, specifically a crankshaft drilling, reaming, and milling fixture. Background Technology

[0002] The end face of the crankshaft needs to be drilled, reamed, milled, etc., including but not limited to machining oil passages, balance holes or chamfering. According to the structural characteristics of the crankshaft, it is necessary to position it at the end of the crankshaft, the crank crank, the crank arm and the main shaft. In actual production, a series of crankshaft products often have multiple models. There are some differences in structure and size between each model, but the differences are not significant. Making a fixture for each model is not only easy to cause confusion in production, but also wastes materials.

[0003] To solve the above-mentioned technical problems, there is an urgent need for a fixture with high adaptability and good versatility. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, this utility model aims to provide a crankshaft drilling, reaming and milling fixture that can adapt to the slight differences in a series of crankshaft products, avoid operational confusion and save equipment costs.

[0005] This solution provides a crankshaft drilling, reaming, and milling fixture, comprising a base plate and a vertical plate. The vertical plate is vertically fixed to the base plate. From bottom to top, the vertical plate is sequentially arranged with several support columns, a shaft fixing device, a crank clamping device, and a shaft head fixing device. The shaft fixing device includes a first fixing plate and a first pressure plate mechanism. The first fixing plate is fixedly mounted on the vertical plate and has a groove. The bottom of each support column is fixedly mounted on the base plate, and the top of each support column abuts against the lower surface of the first fixing plate. The upper surface of the first fixing plate has an adjusting plate with several countersunk slots. Each countersunk slot has a strip-shaped through hole. The adjusting plate is fixedly connected to the first fixing plate via bolts through the strip-shaped through holes. The adjusting plate also has a groove.

[0006] The support column holds the shaft fixing device, the shaft fixing device positions the crankshaft main shaft, the crank clamping device positions the crank of the crankshaft, and the shaft head fixing device positions the end of the crankshaft. This ensures stable workpiece positioning, and by setting an adjustment plate, it can be adapted to a series of workpieces with small differences.

[0007] Furthermore, the crank clamping device includes a crank hydraulic seat, a crank hydraulic cylinder, and a crank positioning seat. The crank hydraulic seat and the crank positioning seat are fixedly mounted on the vertical plate. The crank hydraulic cylinder is located inside the crank hydraulic seat. A push rod is provided on the piston rod of the crank hydraulic cylinder. A pad is fixedly provided on the crank positioning seat. The push rod and the pad are correspondingly arranged.

[0008] Furthermore, the shaft head fixing device includes a second fixing plate and a second pressure plate mechanism arranged opposite to each other, and the second fixing plate has a groove.

[0009] Furthermore, the grooves of the first fixing plate, the adjusting plate, and the second fixing plate are all V-shaped grooves.

[0010] Furthermore, a vertical positioning groove is provided on the surface of the base plate, and a positioning protrusion is provided in the middle of the bottom of the first fixing plate and the second fixing plate. The positioning protrusion of the first fixing plate and the second fixing plate is located in the positioning groove, and the positioning protrusion is corresponding to the center of the bottom of the V-shaped groove.

[0011] Furthermore, both the first pressure plate mechanism and the second pressure plate mechanism include a support rod, a pressure plate, a push rod, and a pressure cylinder. The bottom of the support rod is fixedly mounted on the base plate, the top of the support rod is hinged to the middle of the support rod, one end of the support rod is hinged to one end of the push rod, the other end of the push rod is fixedly connected to the piston rod of the pressure cylinder, and the pressure cylinder is fixedly mounted on the back of the base plate.

[0012] Furthermore, there are two support columns, a fixing nut is fixedly provided at the bottom of the base plate, the bottom end of the support column is a connecting thread, the top end of the support column is an arc-shaped end, and a wrench groove is provided on the support column near the connecting thread end.

[0013] The advantages of this utility model are: the crankshaft drilling, reaming and milling fixture of this solution can realize the quick clamping of crankshaft workpieces, which is convenient to operate. It can also be positioned according to the shape characteristics of the crankshaft to ensure that the positioning is stable and secure. When drilling, reaming and milling the crankshaft, the workpiece will not shift and cause processing errors. Furthermore, it can be adapted to a series of workpieces with small differences, making it highly practical. Attached Figure Description

[0014] Figure 1 This is a perspective view of a crankshaft drilling, reaming, and milling fixture according to the present invention.

[0015] Figure 2 This is a perspective view of a crankshaft drilling, reaming, and milling fixture according to this utility model.

[0016] Figure 3 This is a schematic diagram of the connection between the adjusting plate and the first fixing plate in this utility model;

[0017] Figure 4 This is a schematic diagram of the support structure in this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the present invention in its working state; Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0020] according to Figures 1 to 5 As shown, a crankshaft drilling, reaming, and milling fixture includes a base plate 100 and a vertical plate 200. The vertical plate 200 is fixed to the base plate 100 with vertical screws. Two triangular plates 800 for reinforcement and support are fixed to the back of the vertical plate 200 with screws. The bottom of the triangular plates 800 is fixed to the base plate 100 with screws.

[0021] See details Figure 1 and Figure 2 On the front surface of the upright plate 200, from bottom to top, are arranged a plurality of support columns 300, a shaft fixing device 400, a crank clamping device 500, and a shaft head fixing device 600; in this embodiment, there are two support columns 300, and a fixing nut 103 is welded to the bottom of the base plate 100. See details. Figure 4 The bottom end of the support column 300 has a connecting thread 301, the external thread of which matches the internal thread of the fixing nut 103. The top end of the support column 300 is an arc-shaped end 302. A wrench groove 303 is provided on the support column 300 near the end with the connecting thread 301. The wrench can be held in the wrench groove 303 to rotate the support column 300 for height adjustment. There is a gap between the bottoms of the two supports, and a machining hole is provided on the base plate 100 between them for placing a fixture on the corresponding machining equipment. For example, the rotating pin of the machining equipment can abut against the crankshaft end.

[0022] See details Figure 5 The support column 300 supports the shaft fixing device 400, the shaft fixing device 400 positions the main shaft of the crankshaft, the crank clamping device 500 positions the crank of the crankshaft, and the shaft head fixing device 600 positions the end of the crankshaft.

[0023] See details Figure 1 and Figure 2 The shaft fixing device includes a first fixing plate 401 and a first pressure plate mechanism 402. The bottom of the first fixing plate 401 is fixed to the upright plate 200 with screws, and a groove is provided on the first fixing plate 401. The top of the support column 300 abuts against the lower plate surface of the first fixing plate 401. An adjusting plate 700 is provided on the upper plate surface of the first fixing plate 401. (See details...) Figure 3 The upper surface of the adjusting plate 700 is provided with a plurality of countersunk grooves 701. In this embodiment, there are two countersunk grooves 701.

[0024] See details Figure 3Each of the countersunk grooves 701 has a strip-shaped through hole 702. The adjusting plate 700 is fixedly connected to the first fixing plate 401 through bolts installed in the strip-shaped through holes 702. The adjusting plate 700 also has a groove. See details. Figure 5 The adjusting plate 700 lifts the crankshaft arm and supports its position. The position of the adjusting plate 700 can be adjusted through the strip-shaped through hole 702. The adjusting plate 700 can be made in multiple different thicknesses to better adapt to different models of crankshaft workpieces.

[0025] See details Figure 1 and Figure 2 The crankshaft clamping device 500 includes a crankshaft hydraulic seat 501, a crankshaft hydraulic cylinder 502, and a crankshaft positioning seat 503. The crankshaft hydraulic seat 501 and the crankshaft positioning seat 503 are fixedly screwed onto the vertical plate 200. The crankshaft hydraulic cylinder 502 is located inside the crankshaft hydraulic seat 501. A push rod 504 is provided on the piston rod of the crankshaft hydraulic cylinder 502. A pad 505 is fixedly provided on the crankshaft positioning seat 503. The push rod 504 and the pad 505 are correspondingly arranged. The crankshaft hydraulic cylinder 502 drives the push rod 504 to clamp the crankshaft crank portion onto the pad 505.

[0026] See details Figure 1 and Figure 2 The shaft head fixing device 600 includes a correspondingly arranged second fixing plate 601 and a second pressure plate mechanism 602. The second fixing plate 601 has a groove. In this embodiment, both the first pressure plate mechanism 402 and the second pressure plate mechanism 602 include a support rod 1, a pressure plate 2, a push rod 3, and a pressure cylinder 4. The bottom of the support rod 1 is fixedly disposed on the base plate 100, the top of the support rod 1 is hinged to the middle of the support rod 1, one end of the support rod 1 is hinged to one end of the push rod 3, and the other end of the push rod 3 is fixedly connected to the piston rod of the pressure cylinder 4. The pressure cylinder 4 is fixedly disposed on the back of the base plate 100.

[0027] See details Figure 2 and Figure 3 In this embodiment, a vertical positioning groove 101 is provided on the surface of the base plate, and a positioning protrusion 102 is provided in the middle of the bottom of the first fixing plate 401 and the second fixing plate 601. The positioning protrusion 102 of the first fixing plate 401 and the second fixing plate 601 is provided in the positioning groove 101, and the positioning protrusion 102 is corresponding to the center of the bottom of the V-shaped groove.

[0028] See details Figure 1 and Figure 2As a further improvement of this embodiment, the grooves of the first fixing plate 401, the adjusting plate 700, and the second fixing plate 601 are all V-shaped grooves, and the centers of the three V-shaped grooves are on the straight line of the positioning groove 101.

[0029] The above description is merely an embodiment of this utility model, and common knowledge such as specific structures and characteristics of the solution is not described in detail here. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model, and these should also be considered within the protection scope of this utility model. These modifications and improvements will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A crankshaft drilling, reaming, and milling fixture, characterized in that: Includes a base plate (100) and an upright plate (200), the upright plate (200) being vertically fixed to the base plate (100). Several support columns (300), a shaft fixing device (400), a crank clamping device (500), and a shaft head fixing device (600) are sequentially arranged on the upright plate (200) from bottom to top. The shaft fixing device includes a first fixing plate (401) and a first pressure plate mechanism (402). The first fixing plate (401) is fixed to the upright plate (200), and a groove is formed on the first fixing plate (401). The support columns (300)... 00) The bottom is fixedly set on the base plate (100), and the top of the support column (300) abuts against the lower plate surface of the first fixing plate (401); the upper plate surface of the first fixing plate (401) is provided with an adjustment plate (700), and the upper plate surface of the adjustment plate (700) is provided with a plurality of countersunk grooves (701), and each countersunk groove (701) is provided with a strip-shaped through hole (702). The adjustment plate (700) is fixedly connected to the first fixing plate (401) by bolts through the strip-shaped through hole (702), and the adjustment plate (700) is provided with a groove.

2. A crankshaft drilling, reaming, and milling fixture according to claim 1, characterized in that: The crank clamping device (500) includes a crank hydraulic seat (501), a crank hydraulic cylinder (502), and a crank positioning seat (503). The crank hydraulic seat (501) and the crank positioning seat (503) are fixedly mounted on the vertical plate (200). The crank hydraulic cylinder (502) is located inside the crank hydraulic seat (501). A push rod (504) is provided on the piston rod of the crank hydraulic cylinder (502). A pad (505) is fixedly mounted on the crank positioning seat (503). The push rod (504) and the pad (505) are correspondingly mounted.

3. A crankshaft drilling, reaming, and milling fixture according to claim 1, characterized in that: The shaft head fixing device (600) includes a second fixing plate (601) and a second pressure plate mechanism (602) arranged opposite to each other, and the second fixing plate (601) has a groove.

4. A crankshaft drilling, reaming, and milling fixture according to claim 3, characterized in that: The grooves of the first fixing plate (401), the adjusting plate (700), and the second fixing plate (601) are all V-shaped grooves.

5. A crankshaft drilling, reaming, and milling fixture according to claim 4, characterized in that: A vertical positioning groove (101) is provided on the surface of the base plate. A positioning protrusion (102) is provided in the middle of the bottom of the first fixing plate (401) and the second fixing plate (601). The positioning protrusion (102) of the first fixing plate (401) and the second fixing plate (601) is located in the positioning groove (101). The positioning protrusion (102) is corresponding to the center of the bottom of the V-shaped groove.

6. A crankshaft drilling, reaming, and milling fixture according to claim 3, characterized in that: Both the first pressure plate mechanism (402) and the second pressure plate mechanism (602) include a support rod (1), a pressure plate (2), a push rod (3), and a pressure cylinder (4). The bottom of the support rod (1) is fixedly mounted on the base plate (100). The top of the support rod (1) is hinged to the middle of the support rod (1). One end of the support rod (1) is hinged to one end of the push rod (3). The other end of the push rod (3) is fixedly connected to the piston rod of the pressure cylinder (4). The pressure cylinder (4) is fixedly mounted on the back of the base plate (100).

7. A crankshaft drilling, reaming, and milling fixture according to claim 1, characterized in that: There are two support columns (300). The bottom of the base plate (100) is fixed with a fixing nut (103). The bottom end of the support column (300) is a connecting thread (301). The top end of the support column (300) is an arc-shaped end (302). A wrench groove (303) is opened on the support column (300) near the connecting thread (301).

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