CN204430870U - A kind of clamps in horizontal machining center of the medium speed marine diesel machine connecting rod body of rod - Google Patents

Abstract

The utility model belongs to the field of clamping devices for mechanical processing, and discloses a horizontal machining center clamp for a connecting rod body of a medium-speed marine diesel engine, including a clamp body, and positioning pins are arranged under the clamp body, so that the clamp can be positioned at the center of the rotary worktable of a machine tool , the clamp body is connected with a positioning baffle, a pad positioning pin, a semicircular spacer and a support, and the support has fastening screws, and the positioning baffle, pad positioning pin, semicircular spacer and tight The connecting rod body is placed between the fastening screws. The fastening screw is located on the back of the large end ridge of the connecting rod body. Two pressing plates are arranged above the connecting rod body. On the end face and the big end face, the positioning baffle is temporarily fixed on the reference surface on the side of the clamp body by hexagon head bolts. noodle. The fixture ensures accurate positioning of workpieces, facilitates hoisting operations, and improves processing efficiency.

Description

Fixture for a horizontal machining center of a connecting rod body of a medium-speed marine diesel engine

technical field

The utility model belongs to the field of machining clamping devices, in particular to a horizontal machining center clamp for a connecting rod body of a medium-speed marine diesel engine.

Background technique

The connecting rod body involves a variety of plane and hole processing, including the processing of the joint surface with the connecting rod cover, the long oil hole and the rod cover bolt hole. Each hole exists in a different plane, and the rod cover bolt hole is required to be perpendicular to the connecting rod. On the connecting surface of the rod cover, the long oil hole is deep from the top surface of the small head to the hole close to the big end, and then connects to the big end hole through two small oblique holes, which requires multiple corner positioning during processing.

Utility model content

The purpose of the utility model is to overcome the defects of the prior art, and provide a horizontal machining center fixture for the connecting rod body of a medium-speed marine diesel engine that ensures machining efficiency and machining accuracy.

The purpose of this utility model can be realized through the following technical solutions:

A horizontal machining center jig for a connecting rod body of a medium-speed marine diesel engine, including a jig body, the jig body is provided with a pad positioning pin, a semicircular pad, two positioning baffles and a support, and the pad positioning Both the pin and the semicircle spacer are fixed on the clamp body with the inner hexagon screw two, the two ends of the semicircle spacer are aligned with the processing surface, and the support is fixed on the clamp body with the inner hexagon screw one, and the support is provided with a fastening Screws, the two positioning baffles are all fixed on the reference surface on the side of the clamp body with hexagon head bolts, and are opposite to the two ends of the semicircular spacer. The positioning pin with pad, semicircular spacer, positioning baffle and fastening screw The connecting rod body is placed between them, the fastening screw is on the back of the large end ridge of the connecting rod body, a pressure plate is provided above the small end surface of the connecting rod body, a double-hole pressure plate is provided above the large end surface, and a support is provided below one end of the pressure plate. The pressing plate and the double-hole pressing plate are respectively placed on the small end surface and the large end surface of the connecting rod body through the double-ended screw rod and the nut.

On the basis of the above solution, preferably, there is a positioning pin under the clamp body, so that the clamp can be positioned at the center of the rotary table of the machine tool.

Beneficial effects of the utility model: the utility model positions the fixture to the center of the rotary table of the machine tool through the positioning pin under the clamp body, and the connecting rod body is positioned on the fixture by the positioning pin with a pad, the semicircular pad and the positioning baffle, and the positioning is reliable , easy to operate, improve processing efficiency, and ensure the mutual position accuracy of each processing element of the connecting rod body.

Description of drawings

In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a front view of the utility model;

Fig. 2 is a top view of the utility model.

The labels in the figure are: 1- clamp body, 2- positioning baffle, 3- positioning pin with pad, 4- semicircular pad, 5- connecting rod body, 6- pressure plate, 7- fastening screw, 8- double-ended screw , 9-support, 10-hexagon socket head screw one, 11-nut, 12-hexagon head bolt, 13-double hole plate, 14-locating pin, 15-support, 16-hexagon socket head screw two.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

In the description of the present utility model, it should be understood that the orientations or positional relationships indicated by the terms "above", "below", "above", "rear" are based on the orientations or positional relationships shown in the accompanying drawings, and are only In order to facilitate the description of the present invention, it does 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 thus should not be construed as limiting the present invention.

Referring to Fig. 1-Fig. 2, it can be seen that a fixture of a horizontal machining center for a connecting rod body of a medium-speed marine diesel engine includes a fixture body 1, the shape of the fixture body 1 is hexagonal, and the longest side is a side reference plane. There is a positioning pin 14 under the clamp body 1, so that the clamp can be positioned at the center of the rotary table of the machine tool. On the clamp body 1, there are a positioning pin 3 with a pad, a semicircular pad 4, a support 9 and two positioning baffles 2, and a positioning pin with a pad 3 and semicircular spacer 4 are fixed on the clamp body 1 with hexagon socket head cap screw 2 16, the support 9 is fixed on the clamp body 1 with hexagon socket cap screw 10, and the two positioning baffles 2 are temporarily fixed on the clamp body 1 with hexagon head bolt 12 Concretely, on the datum plane of side 1 and corresponding to the two ends of the semicircular spacer 4 , there are fastening screws 7 on the support 9 . The connecting rod body 5 is placed between the positioning pin 3 with pad, the semicircular pad 4, the positioning baffle plate 2 and the fastening screw 7. The fastening screw 7 is on the back of the ridge of the large end of the connecting rod body 5, and the small end of the connecting rod body 5 There is a pressure plate 6 on the top, a double-hole pressure plate 13 on the top of the big end, and a support 15 under one end of the pressure plate 6. The pressure plate 6 and the double-hole pressure plate 13 are respectively placed on the small end of the connecting rod body through a double-ended screw 8 and a nut 11. and big end faces. After the clamping is completed, the hex head bolt 12 and the positioning baffle plate 2 are removed to leave the processing surface. The connecting rod body 5 is clamped by a fixture once, so that the size and end faces of the connecting rod body are horizontal, and the rotary positioning function of the rotary table of the horizontal machining center is used to greatly improve the processing efficiency and ensure the mutual position accuracy of each processing element of the connecting rod body.

Claims (2)

1. A horizontal machining center clamp for a medium-speed marine diesel engine connecting rod rod body, comprising a clamp body (1), characterized in that, the clamp body (1) is provided with a pad positioning pin (3), a semicircular spacer (4), two positioning baffles (2) and bearings (9), the positioning pins with pads (3) and the semicircular pads (4) are all fixed to the clamp body (1) with two hexagon socket head cap screws (16) ), the two ends of the semicircular spacer (4) are aligned with the processing surface, the support (9) is fixed on the clamp body (1) with the hexagon socket head screw (10), and the support (9) is provided with a tight Screws (7), the two positioning baffles (2) are all fixed on the side datum surface of the clamp body (1) with hexagon head bolts (12), and are opposite to the two ends of the semicircular spacer (4). Place the connecting rod body (5) between the positioning pin with pad (3), the semicircular spacer (4), the positioning baffle (2) and the fastening screw (7), and the fastening screw (7) is on the connecting rod body (5 ) on the back of the large end ridge, a pressing plate (6) is provided above the small end face of the connecting rod body (5), a double-hole pressing plate (13) is provided above the large end face, and a support (15) is provided below one end of the pressing plate (6). ), the pressing plate (6) and the double hole pressing plate (13) are placed on the small end face and the large end face of the connecting rod body respectively by a double-ended screw rod (8) and a nut (11). 2. The fixture of the horizontal machining center according to claim 1, characterized in that, a positioning pin (14) is provided under the fixture body (1).