CN101966656B - Rotary clamping apparatus for drilling crankshaft large disk flange hole - Google Patents

Abstract

The invention relates to a rotary fixture for drilling flange holes of crankshaft plates, which includes a support, a rack slide rail, a driving cylinder, a rack, a gear, a rotating shaft, and a clamp body support plate, and the rotating shaft is installed in the round hole of the support. A gear is installed at one end, and the other end is connected and fixed with the supporting plate of the clamp body. The rack slide rail is installed on the flat plate at the lower part of the support, and the rack is installed in the rack slide rail, which is connected with the cylinder rod of the driving cylinder. The bar is engaged with the gear to drive the rotating shaft to rotate, and then drives the supporting plate of the clamp body to turn over, so that it is in two positions of horizontal and vertical. The invention has a simple structure, the crankshaft is clamped in a horizontal state, and the crankshaft is not easy to be damaged. After the clamping is completed, the crankshaft can be rotated to a vertical position, the fixing and locking are reliable, and the drilling process is convenient. It is an ideal rotary fixture for drilling crankshaft flange holes.

Description

A Rotary Fixture for Drilling Flange Holes of Crankshaft Plates

technical field

The invention relates to a fixture for crankshaft processing, in particular to a rotary fixture for drilling the flange hole of the crankshaft large disc.

Background technique

We know that the drilling of the flange hole of the crankshaft is mostly done by a rocker drill. The crankshaft is placed horizontally during the turnover between the processing steps, but when drilling the crankshaft flange hole on the rocker drill, it is necessary to place the crankshaft flange upwards and fix it vertically on the fixture. In this way, it is easy to damage the crankshaft during the operation from the horizontal position to being vertically fixed on the jig.

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the above-mentioned prior art, and provide a simple structure, reliable fixing and locking, the crankshaft is in a horizontal state when clamping, and the crankshaft can be rotated to a vertical position for drilling after the clamping is completed. Rotary jig for drilling crankshaft crankshaft flange holes for machining.

The technical solution adopted by the present invention to solve the above problems is: a rotary fixture for drilling the flange hole of the crankshaft plate, which is characterized in that it includes a support, a rack slide rail, a driving cylinder, a rack, a gear, a rotating shaft, and a clamp body support There is a horizontal round hole on the upper part of the support, and the rotating shaft is installed in the round hole of the support. One end of the rotating shaft is equipped with a gear, and the other end is connected and fixed with the supporting plate of the clamp body. The rack slide rail and the driving cylinder are installed and fixed on the support. On the upper plate, the rack is installed in the rack slide rail and can slide in it. The rack and the cylinder rod of the driving cylinder are connected together. The rack and the gear are engaged to drive the rotating shaft to rotate, and then drive the clamp body to turn over. Turn from the horizontal state to the vertical state, so that it is in two positions: horizontal and vertical.

The supporting plate of the clamping body in the present invention is provided with a bottom plate and a side plate perpendicular to each other, and a round hole fixed to the rotating shaft is arranged on the side plate, and the rotating shaft is connected and fixed to the side plate of the supporting plate of the clamping body through a flat key, and the bottom plate is provided with Groove, two V-shaped blocks supporting the crankshaft are installed in the groove, and the crankshaft is compressed on the V-shaped block by a pressing plate and bolts.

Below the supporting plate of the clamp body in the present invention, a limit block is installed and fixed on the side of the support. A through square hole is vertically arranged in the middle of the limit block. A locking wedge iron is installed in the square hole, and the upper part of the locking wedge iron is wedge-shaped. , the bottom thereof is connected with the cylinder rod of the locking cylinder installed at the bottom of the limit block, and a locking buckle matched with the locking wedge iron is also installed and fixed under the bottom plate of the clamping body supporting plate. It is used for the positioning and locking of the clamp body pallet in the vertical state.

The invention drives the rotating shaft to rotate through the meshing of the rack and the gear, and then drives the supporting plate of the clamp body to turn over, so that it is in two positions of horizontal and vertical. The clamp body supporting plate is in a horizontal state when clamping the crankshaft. After the clamping is completed, the crankshaft automatically rotates to the vertical position with the clamping body supporting plate for drilling processing. After the processing is completed, the clamping body supporting plate and the crankshaft turn back to the horizontal position. When the rotating shaft drives the clamp body supporting plate installed with the locking buckle to rotate to the vertical position, the clamp body supporting plate hits the limit block and stops moving. At this time, the locking wedge moves upwards in the square hole of the limit block under the drive of the locking cylinder, and is inserted into the rectangular hole of the locking buckle to fix and lock the clamp body supporting plate. Compared with the prior art, the present invention has simple structure, reliable fixing and locking, the crankshaft is clamped in a horizontal state, and the crankshaft is not easily damaged. After the clamping is completed, the crankshaft can be rotated to a vertical position, which is convenient for drilling. It is an ideal rotary fixture for drilling crankshaft flange holes.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a structural schematic diagram of the present invention when the pallet of the clamp body is in a horizontal position.

Fig. 2 is a structural schematic diagram of the present invention when the clamp body supporting plate is in a vertical position.

Fig. 3 is the A-A sectional view of Fig. 2.

FIG. 4 is a top view of FIG. 1 .

FIG. 5 is a top view of FIG. 2 .

The labels in the figure are 1. support, 2. rack slide rail, 3. rack, 4. wedge key, 5. gear, 6. rotating shaft, 7. flat key, 8. clamp body supporting plate, 9. pressing plate, 10. V-shaped block, 11. bolt, 12. limit block, 13. locking cylinder, 14. driving cylinder, 15. locking buckle, 16. locking wedge iron.

Detailed ways

It can be seen from Fig. 1, Fig. 2, Fig. 3, Fig. 4, and Fig. 5 that a rotary fixture for drilling the flange hole of the crankshaft plate includes a support 1, a rack slide rail 2, a driving cylinder 14, a rack 3. Gear 5, rotating shaft 6, clamp body supporting plate 8, etc. A horizontal circular hole is arranged on the upper part of the support 1, and the rotating shaft 6 is installed in the circular hole of the support 1, and the rotating shaft 6 can rotate in the circular hole. One end of rotating shaft 6 is equipped with gear 5, and the other end is connected and fixed with clamp body supporting plate 8, specifically gear 5 and clamping body supporting plate 8 are fixed on the two ends of rotating shaft 6 by wedge key 4 and flat key 7 respectively. The rack slide rail 2 is fixed on the flat plate on the upper part of the support 1, and one end of the rack slide rail 2 has a plane on which the drive cylinder 14 is fixed; there is a groove on the top of the rack slide rail 2, and the rack slide rail 2 Installed in the groove of the rack slide rail 2, the rack 3 can slide therein. The rack 3 is connected with the cylinder rod of the drive cylinder 14, and the rack 3 is engaged with the gear 5 to drive the rotating shaft 6 to rotate. , and then drive the folder body supporting plate 8 to turn over, and rotate from the horizontal state to the vertical state, so that it is in two positions: horizontal and vertical.

Clamp body supporting plate 8 described in the present invention is rectangular, is provided with bottom plate and side plate perpendicular to each other, and side plate is provided with the round hole that is fixed with rotating shaft 6, through flat key 7, the connection between rotating shaft 6 and clamping body supporting plate 8 The side plates are connected and fixed, and the base plate is provided with a groove, and two V-shaped blocks 10 supporting the crankshaft are installed in the groove, and the crankshaft is pressed on the V-shaped block 10 by the pressing plate 9 and the bolt 11. Two V-shaped blocks 10 supporting the crankshaft can move in the groove so as to be adjusted and fixed to a suitable position.

Below the supporting plate 8 of the clamp body of the present invention, a limit block 12 is installed and fixed on the side of the support 1 . Limiting block 12 is a cuboid, and vertically is provided with through square hole in the middle, and a locking wedge iron 16 is installed in the square hole, and locking cylinder 13 is installed on the bottom surface of limiting block 12 . Locking wedge iron 16 is wedge-shaped, and a screw hole is connected with the cylinder rod of locking cylinder 13 at its bottom. The locking wedge 16 is installed in the square hole through which the limiting block 12 passes. Driven by the locking cylinder 13 , the locking wedge 16 can move in the square hole of the limiting block 12 . A locking buckle 15 matched with a locking wedge iron 16 is also installed and fixed under the bottom plate of the clamp body supporting plate 8 . The locking buckle 15 is right-angled, and a rectangular hole is arranged on one side thereof. It is used for the positioning and locking of the clamp body pallet in the vertical state. When the clamp body supporting plate 8 rotates to the vertical position, as shown in FIGS. 2 , 3 and 5 , the clamp body supporting plate 8 hits the limit block 12 and stops moving. At this time, the locking wedge iron 16 is driven by the locking cylinder 13, moves upward in the square hole of the limit block 12, and is inserted into the rectangular hole of the locking buckle 15, and the clamp body supporting plate 8 is fixed on the clamp. The crankshaft on the concrete supporting plate 8 is fixedly locked in a vertical position.

The invention drives the rotating shaft to rotate through the meshing of the rack and the gear, and then drives the supporting plate of the clamp body to turn over, so that it is in two positions of horizontal and vertical. The supporting plate of the clamping body is in a horizontal state when clamping the crankshaft, and it is not easy to damage the crankshaft. After the clamping is completed, the crankshaft will automatically rotate to the vertical position with the supporting plate of the clamping body for drilling, which is convenient for drilling. After the processing is completed, the clamp body supporting plate and the crankshaft turn back to the horizontal position. The invention has a simple structure, and the crankshaft is clamped in a horizontal state. After the clamping is completed, the crankshaft can be rotated to a vertical position, and the fixing and locking are reliable.

Claims (2)

1. rolling clamp that bores bent axle deep bid flange hole, it is characterized in that: it comprises bearing, the tooth bar slide rail, drive cylinder, tooth bar, gear, rotating shaft, the clamp body supporting plate, bearing top is provided with a horizontal circular hole, rotating shaft is installed in the circular hole of bearing, one end of rotating shaft is equipped with gear, the other end and clamp body supporting plate are connected and fixed, the tooth bar slide rail, driving cylinder is fixed on the flat board on bearing top, tooth bar is installed in the tooth bar slide rail, can slide therein, tooth bar connects together with the cylinder rod that drives cylinder, and the interlock of rack and pinion phase drives rotating shaft and rotates, and then drive the upset of clamp body supporting plate, make it be in level and vertical two kinds of location status.

2. according to the rolling clamp of the described brill bent axle of claim 1 deep bid flange hole, it is characterized in that: described clamp body supporting plate is provided with orthogonal base plate and side plate, side plate is provided with and the fixing circular hole of rotating shaft, by a flat key, the side plate of rotating shaft and clamp body supporting plate is connected and fixed, base plate is provided with groove, and two vee-blocks that support bent axle are installed in the groove, and bent axle is pressed on the vee-block by pressing plate and bolt.

3. according to the rolling clamp of the described brill bent axle of claim 1 deep bid flange hole, it is characterized in that: described clamp body supporting plate below, the side of bearing installs and fixes a limited block, the limited block intermediate vertical is provided with a square hole that connects, one locking drift is installed in the square hole, locking drift top is wedge shape, and its bottom connects mutually with the cylinder rod of the locking cylinder that is installed in the limited block bottom, also be mounted with below the base plate of described clamp body supporting plate one with lock the tight locking button that drift matches.

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