Connecting rod machining and positioning tool

Abstract

The utility model relates to a connecting rod machining positioning tool which comprises a bottom plate, a vertical plate fixed to the bottom plate, a large-head positioning mechanism and a small-head positioning mechanism. The large-head positioning mechanism and the small-head positioning mechanism are installed on the vertical plate. The large head positioning mechanism comprises a lower supporting plate and an upper pressing piece which are used for positioning the large head in the vertical direction, and a side jacking piece and a rotating baffle which are used for positioning the large head in the horizontal direction; the small head positioning mechanism comprises a clamping groove used for limiting the end of the small head and a rotating pressing plate used for pressing the end of the small head. According to the utility model, the large-head positioning mechanism and the small-head positioning mechanism are matched to quickly and stably position the connecting rod, so that the processing speed and the processing precision of the connecting rod are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to connecting rod production technical field especially relates to a connecting rod processing positioning frock. BACKGROUND

[0002] Connecting rod is connected between piston and crankshaft, and the force that piston received is given to crankshaft, and the reciprocating motion of piston is changed into the rotary motion of crankshaft. Connecting rod includes small head connected with piston pin, big head connected with crankshaft and connecting rod body connected between small head and big head, piston pin hole is equipped on small head, and crankshaft connecting rod hole is equipped on big head. In the connecting rod processing, piston pin hole and crankshaft connecting rod hole need to be milled, and connecting rod needs to be positioned when milling piston pin hole and crankshaft connecting rod hole. The current positioning mode is generally that the connecting rod body is pressed and fixed, and in actual processing, the connecting rod body pressing part is easy to deform, and the big head and small head of connecting rod two ends are upturned, thereby reducing the processing precision of connecting rod, affecting product quality and reducing product qualification rate. SUMMARY

[0003] The utility model provides a connecting rod processing positioning frock in view of prior art's insufficient.

[0004] The utility model discloses a connecting rod processing positioning frock, including bottom plate, the vertical plate of fixed in bottom plate, install the big head positioning mechanism and small head positioning mechanism of vertical plate, the big head positioning mechanism includes the lower supporting plate and upper pressing piece for the big head positioning in vertical direction and the side toping piece and rotating baffle for the big head positioning in horizontal direction, and small head positioning mechanism includes the clamping groove for the small head end position limiting and the rotating pressing plate for pressing small head end.

[0005] Preferably, the lower supporting plate is fixed with the vertical plate, and the upper pressing piece includes an upper pressing plate fixed with the vertical plate and an upper pressing screw rod penetrating through the upper pressing plate and threadedly connected with the upper pressing plate. The big head is positioned in the vertical direction by rotating the upper pressing screw rod to press the big head and cooperating with the lower supporting plate.

[0006] Preferably, the side toping piece includes a side baffle fixed with the vertical plate and a side toping screw rod penetrating through the side baffle and threadedly connected with the side baffle.

[0007] Preferably, the first fixing screw and the second fixing screw are fixed on the vertical plate, the second fixing screw is connected with the second fixing nut after penetrating the rotating baffle, the first fixing nut is connected on the first fixing screw, the limiting notch is arranged on the rotating baffle, and the first fixing screw is embedded in the limiting notch by rotating the rotating baffle. The rotating baffle is limited by the second fixing nut, the first fixing screw is embedded in the limiting notch by rotating the rotating baffle, and the rotating baffle is locked by tightening the first fixing nut and the second fixing nut. At this time, the rotating baffle is blocked on the big head side, and the side pressing screw is pressed on the big head end by rotating the side pressing screw. The cooperation between the side pressing screw and the rotating baffle positions the big head in the horizontal direction.

[0008] Preferably, the clamping groove is arranged at the end of the positioning column, and the other end of the positioning column penetrates the vertical plate and is connected with the floating assembly.

[0009] Preferably, the floating assembly comprises a moving plate fixed with the positioning column and two guide rods fixed with the vertical plate, the end of the two guide rods is fixed with a connecting plate, the moving plate is clamped between the two guide rods and can move along the guide rods, and a spring is arranged between the connecting plate and the moving plate. After the pressing plate is rotated to press the small head end, the spring is tightly clamped in the small head end by the elastic force of the spring, so that the small head is more stable, and the stability of the connecting rod positioning is further improved.

[0010] Preferably, two guide grooves are arranged on the moving plate, and one guide groove is embedded in one guide rod.

[0011] Preferably, in order to guide the compression and elongation of the spring, a guide rod is fixed on the connecting plate, and a part of the guide rod extends into the spring.

[0012] Preferably, the third fixing screw and the fourth fixing screw are fixed on the vertical plate, the fourth fixing screw is connected with the fourth fixing nut after penetrating the rotating pressing plate, the third fixing nut is connected on the third fixing screw, and the limiting groove is arranged on the rotating pressing plate. The third fixing screw is embedded in the limiting groove by rotating the rotating pressing plate. The rotating pressing plate is limited by the fourth fixing nut, the third fixing screw is embedded in the limiting groove by rotating the rotating pressing plate, and the rotating pressing plate is locked by tightening the third fixing nut and the fourth fixing nut.

[0013] The utility model discloses the beneficial effects are:

[0014] The utility model discloses simple structure is convenient for the connecting rod operation positioning, and the cooperation of big head positioning mechanism and small head positioning mechanism realizes the stable positioning of connecting rod, and effectively improves the processing rate and processing accuracy of connecting rod. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic diagram of one perspective of the utility model;

[0016] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0017] Figure 3 This is a front view structural diagram of the present utility model;

[0018] Figure 4 This is a partially enlarged structural schematic diagram of the floating component of this utility model;

[0019] Figure 5 This is a schematic diagram of the floating component and positioning column of this utility model;

[0020] As shown in the figure:

[0021] 1. Base plate, 2. Vertical plate, 3. Lower support plate, 4. Upper pressure plate, 5. Upper clamping screw, 6. Large end, 7. Small end, 8. Rotating baffle, 9. Side baffle, 10. Side clamping screw, 11. First fixing screw, 12. Second fixing screw, 13. Second fixing nut, 14. First fixing nut, 15. Slot, 16. Rotating pressure plate, 17. Positioning post, 18. Moving plate, 19. Guide rod, 20. Connecting plate, 21. Spring, 22. Guide rod, 23. Third fixing screw, 24. Fourth fixing screw, 25. Fourth fixing nut, 26. Third fixing nut. Detailed Implementation

[0022] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0023] like Figures 1-5 As shown, this utility model includes a base plate 1, a vertical plate 2 fixed on the base plate 1, a large-end positioning mechanism and a small-end positioning mechanism installed on the vertical plate 2.

[0024] The large-head positioning mechanism includes a lower support plate 3 and an upper clamping member for positioning the large-head 6 in the vertical direction, and a side clamping member and a rotating baffle 8 for positioning the large-head 6 in the horizontal direction.

[0025] The lower support plate 3 is fixed to the upright plate 2. The upper clamping component includes an upper pressure plate 4 fixed to the upright plate 2 and an upper clamping screw 5 that passes through the upper pressure plate 4 and is threadedly connected to the upper pressure plate 4. By rotating the upper clamping screw 5, the large head 6 is clamped and the lower support plate 3 is used to position the large head 6 in the vertical direction.

[0026] The side top fastening member comprises a side baffle 9 fixed with the vertical plate 2 and a side top fastening screw 10 penetrating through the side baffle 9 and being screwed with the side baffle 9. A first fixing screw 11 and a second fixing screw 12 are fixed on the vertical plate 2, the second fixing screw 12 is connected with a second fixing nut 13 after penetrating through the rotating baffle 8, a first fixing nut 14 is connected with the first fixing screw 11, a limiting notch is arranged on the rotating baffle 8, and the first fixing screw 11 is embedded in the limiting notch by rotating the rotating baffle 8. The rotating baffle 8 is limited by the second fixing nut 13, the first fixing screw 11 is embedded in the limiting notch by rotating the rotating baffle 8, and the rotating baffle 8 is locked by tightening the first fixing nut 14 and the second fixing nut 13. At this time, the rotating baffle 8 is blocked on the side of the big head 6, and the side top fastening screw 10 is tightened by rotating the side top fastening screw 10, so that the big head 6 is positioned in the horizontal direction by the cooperation of the side top fastening screw 10 and the rotating baffle 8.

[0027] The small head positioning mechanism comprises a clamping groove 15 for limiting the end of the small head 7 and a rotating pressing plate 16 for pressing the end of the small head 7.

[0028] The clamping groove 15 is arranged at the end of a positioning column 17, the other end of the positioning column 17 penetrates through the vertical plate 2 to the back of the vertical plate 2 and is connected with a floating assembly. The floating assembly comprises a moving plate 18 fixed with the positioning column 17 and two guide rods 19 fixed with the vertical plate 2, the ends of the two guide rods 19 are fixed with a connecting plate 20, the moving plate 18 is clamped between the two guide rods 19 and can move along the guide rods 19, and a spring 21 is arranged between the connecting plate 20 and the moving plate 18. After the end of the small head 7 is pressed by the rotating pressing plate 16, the spring 21 is compressed, the clamping groove 15 is tightly clamped on the end of the small head 7, the small head 7 is more stably positioned, and the stability of the connecting rod positioning is further improved. In this embodiment, two guide grooves are arranged on the moving plate 18, and one guide groove corresponds to one guide rod 19. In order to guide the compression and extension of the spring 21, a guide rod 22 is fixed on the connecting plate 20, and a part of the guide rod 22 extends into the spring 21.

[0029] A third fixing screw 23 and a fourth fixing screw 24 are fixed on the vertical plate 2, the fourth fixing screw 24 is connected with a fourth fixing nut 25 after penetrating through the rotating pressing plate 16, a third fixing nut 26 is connected with the third fixing screw 23, a limiting groove is arranged on the rotating pressing plate 16, and the third fixing screw 23 is embedded in the limiting groove by rotating the rotating pressing plate 16. The rotating pressing plate 16 is limited by the fourth fixing nut 25, the third fixing screw 23 is embedded in the limiting groove by rotating the rotating pressing plate 16, and the rotating pressing plate 16 is locked by tightening the third fixing nut 26 and the fourth fixing nut 25.

[0030] In use, the hand-held connecting rod is placed on the lower supporting plate 3 with the big end 6 and the small end 7 is clamped in the clamping groove 15, the big end 6 is pressed by rotating the upper pressing screw 5, at this time the connecting rod is preliminarily positioned. Then the rotating baffle 8 and the rotating pressing plate 16 are rotated respectively, the first fixing screw 11 is embedded in the limiting notch, the third fixing screw 23 is embedded in the limiting groove, the first fixing nut 14, the second fixing nut 13, the third fixing nut 26 and the fourth fixing nut 25 are tightened, the rotating baffle 8 is blocked on one side of the big end 6, the rotating pressing plate 16 is pressed on the small end 7, finally the side pressing screw 10 is tightened to press the big end 6, the positioning of the connecting rod is completed.

[0031] The connecting rod positioning device has the advantages of simple structure, convenient operation and positioning, fast and stable positioning of the connecting rod through the cooperation of the big end positioning mechanism and the small end positioning mechanism, and improved processing rate and processing precision of the connecting rod.

[0032] Of course, the above description is not limited to the above examples, and the technical features not described in the utility model can be realized by or using the prior art, which will not be described here; the above embodiments and drawings are only used to illustrate the technical scheme of the utility model and are not limited to the utility model, the preferred embodiments are described in detail, and those skilled in the art should understand that the changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the utility model do not deviate from the purpose of the utility model, and should also belong to the protection scope of the claims of the utility model.

Claims

1. A connecting rod machining positioning tool, characterized by: The device comprises a bottom plate, a vertical plate fixed on the bottom plate, a big-end positioning mechanism and a small-end positioning mechanism fixed on the vertical plate.

2. The connecting rod machining positioning tooling fixture of claim 1, wherein: The lower supporting plate is fixed with the vertical plate, and the upper pressing piece comprises an upper pressing plate fixed with the vertical plate and an upper pressing screw rod penetrating through the upper pressing plate and being screwed with the upper pressing plate.

3. The connecting rod positioning tooling fixture of Claim 1, wherein: The side pressing piece comprises a side pressing plate fixed with the vertical plate and a side pressing screw rod penetrating through the side pressing plate and being screwed with the side pressing plate.

4. The connecting rod machining positioning tooling fixture of Claim 1 wherein: The first and second fixing screw rods are fixed on the vertical plate, the second fixing screw rod penetrates through the rotating baffle and is connected with the second fixing nut, the first fixing nut is connected with the first fixing screw rod, and the limiting gap is arranged on the rotating baffle.

5. The connecting rod machining positioning tooling fixture of Claim 1 wherein: The positioning column is fixed with the moving plate, and the other end of the positioning column penetrates through the vertical plate and extends to the back of the vertical plate and is connected with the floating assembly.

6. The connecting rod machining positioning tooling fixture of Claim 5, wherein: The floating assembly comprises the moving plate fixed with the positioning column and two guide rods fixed with the vertical plate, the end of the two guide rods is fixed with the connecting plate, the moving plate is clamped between the two guide rods and can move along the guide rods, and the spring is arranged between the connecting plate and the moving plate.

7. The connecting rod machining positioning tooling fixture of Claim 6 wherein: Two guide grooves are arranged on the moving plate, and one guide rod is embedded in one guide groove.

8. The connecting rod machining positioning tooling fixture of Claim 6, wherein: The guide rod is fixed on the connecting plate, and a part of the guide rod extends into the spring.

9. The connecting rod machining positioning tooling fixture of Claim 1 wherein: The third and fourth fixing screw rods are fixed on the vertical plate, the fourth fixing screw rod penetrates through the rotating pressing plate and is connected with the fourth fixing nut, the third fixing nut is connected with the third fixing screw rod, and the limiting groove is arranged on the rotating pressing plate, and the rotating pressing plate can be embedded in the limiting groove.

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