Integral piston milling pin hole end face machining structure

Abstract

The utility model relates to the technical field of machining, and discloses a whole piston milling pin hole end face machining structure which comprises a tool bottom plate, an alignment assembly is arranged on the top of the tool bottom plate, a clamping assembly is arranged on the outer side of the tool bottom plate, and an alignment auxiliary assembly is arranged on the outer side of the tool bottom plate. A clamping auxiliary assembly is arranged on the outer side of the tool bottom plate, the alignment assembly comprises a support, the top of the support is fixedly connected to the top of the tool bottom plate, and a first inner hexagon bolt is arranged on the outer side of the support. According to the utility model, the piston is placed on the tool bottom plate, the two positioning pins II are used for preliminary positioning, and then the connecting rod is rotated, so that the positioning bolt on the positioning plate enters the inner end face of the pin hole of the piston until the front end of the positioning bolt is completely attached to the inner end face of the pin hole and the piston cannot be rotated; the clamping alignment time is shortened, the efficiency and precision are improved, and the stability and precision of the piston in the machining process are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing technical field especially relates to a whole piston milling pinhole end face processing structure. BACKGROUND

[0002] Each component of the piston is the key component of the engine, and the whole piston is the main force component when bearing the burst pressure in the cylinder, therefore, the processing quality directly influences the service life and safety of the engine.

[0003] In the traditional method, it needs to spend a long time to carry out clamping alignment, which usually involves multiple manual adjustment and calibration to ensure that the piston is in the correct position, and each clamping alignment needs to consume a lot of time and energy, which reduces the production efficiency.

[0004] In view of the above problems, the whole piston milling pinhole end face processing structure is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortage, the utility model provides a whole piston milling pinhole end face processing structure, which aims at improving the problem that the piston clamping alignment needs multiple manual adjustment and calibration in the prior art to ensure that the piston is in the correct position, and each clamping and alignment needs to consume a lot of time and energy, which reduces the production efficiency.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a whole piston milling pinhole end face processing structure, including tooling bottom plate, the tooling bottom plate top is provided with alignment assembly, the tooling bottom plate outside is provided with clamping assembly, the tooling bottom plate outside is provided with alignment auxiliary assembly, the tooling bottom plate outside is provided with clamping auxiliary assembly;

[0007] The alignment assembly includes the support, the support top fixedly connected in the tooling bottom plate top, the support outside is provided with the internal hexagonal bolt one, the support inside is provided with the split pin, the split pin outside is installed with the connecting rod, the connecting rod inside is provided with the positioning pin three, the connecting rod outside is provided with the locating plate, the locating plate inside is provided with the nut two, the locating plate outside is installed with the counterweight, the locating plate inside is provided with the positioning bolt, the locating plate inside lower side is provided with the internal hexagonal bolt five, the locating plate outside is provided with the washer.

[0008] As a further description of the above technical scheme:

[0009] The clamping assembly comprises two inner hexagonal bolts two, the outer sides of the two inner hexagonal bolts are threadedly connected inside the tooling bottom plate, the outer sides of the two inner hexagonal bolts are provided with a top rod positioning seat, and the inner wall of the top rod positioning seat is provided with a top rod.

[0010] As a further description of the above technical solution:

[0011] The alignment auxiliary assembly comprises two positioning pins two, the bottom of the two positioning pins is arranged on the top of the tooling bottom plate, and the inner part of the two positioning pins is provided with an inner hexagonal bolt four.

[0012] As a further description of the above technical solution:

[0013] The clamping auxiliary assembly comprises two double-headed bolts and a supporting rod, the outer side of the double-headed bolt is fixedly connected to the top of the tooling bottom plate, the outer side of the supporting rod is fixedly connected to the top of the tooling bottom plate, the outer side of the double-headed bolt is provided with a compression spring, the inner part of the double-headed bolt is provided with a pressing plate, and the outer side of the supporting rod is threadedly connected with a nut one.

[0014] As a further description of the above technical solution:

[0015] The inner part of the tooling bottom plate is provided with a plurality of M lifting ring screws.

[0016] As a further description of the above technical solution:

[0017] The outer side of the nut one is provided with a pressing plate at the bottom, and the inner part of the tooling bottom plate is provided with a plurality of inner hexagonal bolts three.

[0018] As a further description of the above technical solution:

[0019] One end of the compression spring is fixedly connected to the outer side of the pressing plate, and the other end of the compression spring is fixedly connected to the outer side of the double-headed bolt.

[0020] As a further description of the above technical solution:

[0021] The outer side of the tooling bottom plate is provided with a positioning shaft, and the inner part of the tooling bottom plate is provided with a positioning pin one.

[0022] The utility model has the advantages of the following beneficial effects:

[0023] 1、The utility model discloses a piston positioning device, which comprises a tooling bottom plate, a piston, a positioning plate, a connecting rod, a positioning pin one, a positioning pin two, an inner hexagonal bolt four, an inner hexagonal bolt three, an inner hexagonal bolt two, a double-headed bolt, a supporting rod, a nut one, a compression spring, a pressing plate, a top rod positioning seat and a top rod.

[0024] 2. The utility model discloses a top rod is rotated to the top of its top piston and is pressed the pressing plate, and the pressing plate is through the cooperation of double -end bolt and nut one etc. structure, and enough pressure is applied, and it is guaranteed that the piston does not move in the processing, and after confirming that the piston is firmly fixed, the milling pinhole end face processing is started, and it is guaranteed that the milling pinhole end face processing does not move in the processing, thereby improve the precision and consistency of the milling pinhole end face, and production efficiency and product quality are improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A three-dimensional view of the whole piston milling pinhole end face processing structure is provided for the utility model;

[0026] Figure 2 A top rod positioning seat structure diagram of the whole piston milling pinhole end face processing structure is provided for the utility model;

[0027] Figure 3 A positioning shaft structure diagram of the whole piston milling pinhole end face processing structure is provided for the utility model;

[0028] Figure 4 A positioning plate structure diagram of the whole piston milling pinhole end face processing structure is provided for the utility model.

[0029] Legend:

[0030] 1, tooling base plate, 2, double -end bolt, 3, support rod, 4, pressing plate, 5, positioning pin one, 6, positioning shaft, 7, positioning pin two, 8, top rod positioning seat, 9, top rod, 10, connecting rod, 11, support, 12, positioning bolt, 13, positioning pin three, 14, counterweight, 15, positioning plate, 16, washer, 17, split pin, 18, M12 lifting ring screw, 19, inner hexagonal bolt one, 20, inner hexagonal bolt two, 21, nut one, 22, compression spring, 23, nut two, 24, inner hexagonal bolt three, 25, inner hexagonal bolt four, 26, inner hexagonal bolt five. DETAILED DESCRIPTION

[0031] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0032] REFERENCE Figures 1-4The utility model provides an embodiment: a kind of overall piston milling pinhole end face processing structure, including tooling base plate 1, and tooling base plate 1 top is provided with alignment assembly, and tooling base plate 1 outer side is provided with clamping assembly, and tooling base plate 1 outer side is provided with alignment auxiliary assembly, and tooling base plate 1 outer side is provided with clamping auxiliary assembly;

[0033] Alignment assembly includes support 11, and support 11 top is fixedly connected in tooling base plate 1 top, and support 11 outer side is provided with internal hexagonal bolt one 19, and support 11 inside is provided with split pin 17, and split pin 17 outer side is installed with connecting rod 10, and connecting rod 10 inside is provided with positioning pin three 13, and connecting rod 10 outer side is provided with locating plate 15, and locating plate 15 inside is provided with nut two 23, and locating plate 15 outer side is installed with counterweight 14, and locating plate 15 inside is provided with positioning bolt 12, and locating plate 15 inside lower side is provided with internal hexagonal bolt five 26, and locating plate 15 outer side is provided with washer 16.

[0034] Specifically, alignment assembly is used for alignment positioning piston, ensure that its approximate position is correct, alignment auxiliary assembly further assists alignment, clamping assembly is then through top rod 9 etc. Component and tightly press piston, to ensure that piston does not move in the processing process, clamping auxiliary assembly then further assists clamping, by the cooperation of stud bolt 2 and support rod 3, enough pressure is applied, ensure that piston is firm, support 11 outer side is provided with internal hexagonal bolt one 19, for adjusting and fixing the position of support 11, split pin 17 is used for limiting the rotation angle of connecting rod 10, connecting rod 10 is used for connecting and transmitting force, positioning pin three 13 is used for further accurately positioning piston, locating plate 15 is used for bearing and fixing positioning bolt 12, nut two 23 is used for fixing and adjusting the position of locating plate 15, counterweight 14 is used for increasing the stability of locating plate 15, positioning bolt 12 is used for going into piston pinhole inner end face, ensure the accurate position of piston, internal hexagonal bolt five 26 is used for fixing and adjusting the position of locating plate 15, washer 16 is used for preventing thread loosening and increasing friction.

[0035] Refer to Figure 1 Figure 4 Clamping assembly includes two internal hexagonal bolt two 20, and internal hexagonal bolt two 20 outer side is threadedly connected in tooling base plate 1 inside, and internal hexagonal bolt two 20 outer side is provided with top rod locating seat 8, and top rod locating seat 8 inner wall is provided with top rod 9, alignment auxiliary assembly includes two positioning pin two 7, and positioning pin two 7 bottom is provided in tooling base plate 1 top, and positioning pin two 7 inside is installed with internal hexagonal bolt four 25, clamping auxiliary assembly includes two stud bolts 2 and support rods 3, and stud bolt 2 outer side is fixedly connected in tooling base plate 1 top, and support rod 3 outer side is fixedly connected in tooling base plate 1 top, and stud bolt 2 outer side is sleeved with compression spring 22, and stud bolt 2 inside is provided with pressing plate 4, and support rod 3 outer side is threadedly connected with nut one 21. ​

[0036] Specifically, the inner hexagonal bolt two 20 is used for adjusting and fixing the position of the ejector rod positioning seat 8, the ejector rod 9 is used for tightly pressing the piston, the two positioning pins two 7 are used for preliminarily positioning the piston, the inner hexagonal bolt four 25 is used for adjusting and fixing the position of the positioning pin two 7, the double-headed bolt 2 is fixedly connected to the top of the tool base plate 1 in the outer side, the support rod 3 is fixedly connected to the top of the tool base plate 1 in the outer side, and is used for providing support and fixation, the compression spring 22 is used for providing pre-tightening force, and ensures that the pressing plate 4 tightly presses the piston, the pressing plate 4 is used for fixing the piston, and the nut one 21 is used for fixing and adjusting the position of the pressing plate 4.

[0037] Referring to Figure 1 - Figure 4 The tool base plate 1 is internally provided with a plurality of M12 ring hanger screws 18, the pressing plate 4 is arranged at the bottom of the outer side of the nut one 21, the tool base plate 1 is internally provided with a plurality of inner hexagonal bolts three 24, one end of the compression spring 22 is fixedly connected to the outer side of the pressing plate 4, the other end of the compression spring 22 is fixedly connected to the outer side of the double-headed bolt 2, the tool base plate 1 is externally provided with the positioning shaft 6, and the tool base plate 1 is internally provided with the positioning pin one 5.

[0038] Specifically, the pressing plate 4 is used for tightly pressing the piston, the inner hexagonal bolt three 24 is used for fixing and adjusting other components in the tool base plate 1, the compression spring 22 is used for providing pre-tightening force, and ensures that the pressing plate 4 tightly presses the piston, the positioning shaft 6 is used for further accurately positioning the piston, and the positioning pin one 5 is used for preliminarily positioning the piston.

[0039] Working principle: when in use, the piston is placed on the tool base plate 1, is preliminarily positioned by the two positioning pins two 7, and then the positioning bolt 12 on the positioning plate 15 is rotated to enter the inner end face of the piston pin hole until the front end of the positioning bolt 12 is completely attached to the inner end face of the pin hole and the piston cannot be rotated any more, thereby achieving the reduction of clamping and alignment time, the improvement of efficiency and accuracy, the installation of the ejector rod positioning seat 8 on the base plate by the inner hexagonal bolt 20, the tightly pressing of the piston by the ejector rod 9 and the pressing of the pressing plate 4, at this time, the pressing plate 4 is matched with the double-headed bolt 2 and the nut one 21 and the like structure to apply sufficient pressure, thereby ensuring that the piston does not move in the machining process, thereby improving the accuracy and consistency of the milling of the pin hole end face, and after it is confirmed that the piston is firmly fixed, the milling of the pin hole end face is started.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not used to limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical scheme recorded in the foregoing embodiments can still be modified, or some technical features can be replaced, and any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model should be included in the protection range of the utility model.

Claims

1. An integrated piston pin bore and end face machining structure comprising a tooling base plate (1) characterised in that: The top of the tool base plate (1) is provided with an alignment assembly, the outer side of the tool base plate (1) is provided with a clamping assembly, the outer side of the tool base plate (1) is provided with an alignment auxiliary assembly, and the outer side of the tool base plate (1) is provided with a clamping auxiliary assembly. The alignment assembly comprises a support (11) fixedly connected to the top of the tool base plate (1), a hexagonal bolt (19) provided on the outer side of the support (11), an open pin (17) provided in the support (11), a connecting rod (10) mounted on the outer side of the open pin (17), a positioning pin (13) provided in the connecting rod (10), a positioning plate (15) provided on the outer side of the connecting rod (10), a nut (23) provided in the positioning plate (15), a counterweight (14) mounted on the outer side of the positioning plate (15), a positioning bolt (12) provided in the positioning plate (15), a hexagonal bolt (26) provided on the lower side of the positioning plate (15), and a washer (16) provided on the outer side of the positioning plate (15).

2. The one-piece piston bore-milling and end-facing structure of claim 1, wherein: The clamping assembly comprises two hexagonal bolts (20) threadedly connected to the inner side of the tool base plate (1), and a top rod positioning seat (8) provided on the outer side of the hexagonal bolts (20).

3. The one-piece piston bore-milling and end-facing structure of claim 1, wherein: The alignment auxiliary assembly comprises two positioning pins (7) provided on the top of the tool base plate (1), and a hexagonal bolt (25) mounted in the positioning pin (7).

4. The one-piece piston bore-milling and end-facing structure of claim 1, wherein: The clamping auxiliary assembly comprises two double-headed bolts (2) and a support rod (3), the double-headed bolts (2) are fixedly connected to the top of the tool base plate (1), the support rod (3) is fixedly connected to the top of the tool base plate (1), the double-headed bolts (2) are provided with a compression spring (22), the double-headed bolts (2) are provided with a pressing plate (4), and the support rod (3) is provided with a nut (21).

5. The one-piece piston bore-milling and end-facing structure of claim 1, wherein: A plurality of M12 ring hanger screws (18) are mounted in the tool base plate (1).

6. The one-piece piston bore-milling and end-facing structure of claim 4, wherein: The nut (21) is provided with a pressing plate (4) on the outer side, and the tool base plate (1) is provided with a plurality of hexagonal bolts (24).

7. The one-piece piston bore-milling and end-facing structure of claim 4, wherein: One end of the compression spring (22) is fixedly connected to the outer side of the pressing plate (4), and the other end of the compression spring (22) is fixedly connected to the outer side of the double-headed bolt (2).

8. The one-piece piston bore-milling and end-facing structure of claim 1, wherein: The tool base plate (1) is provided with a positioning shaft (6), and the tool base plate (1) is provided with a positioning pin (5).

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