阅读说明：本技术 一种连杆镗孔加工夹具 (Connecting rod boring machining clamp ) 是由 杨文娟 邱瑞军 樊光明 翟文斌 刘晶 孙伟 于 2021-05-21 设计创作，主要内容包括：本发明公开了一种连杆镗孔加工夹具,包括底板,底板上固定安装有垂直于底板的安装板,安装板上设有第一连杆定位机构和第二连杆定位机构,第一连杆定位机构包括固定安装在安装板上的大头孔定位柱和涨紧定位小头孔的涨紧定位机构,第二连杆定位机构包括固定安装在安装板上的小头孔定位柱和涨紧定位大头孔的涨紧定位机构,安装板上还设有辅助定位机构,底板上还设有驱动各个涨紧定位机构前后移动的驱动机构；通过定位柱和涨紧定位机构对连杆进行定位,而后辅助定位机构对连杆进行定位夹紧,涨紧定位机构松弛,不再对大头孔或小头孔进行涨紧定位,而后驱动机构驱动涨紧定位机构回撤,此时便能够进行连杆大头孔或小头孔的加工。(The invention discloses a connecting rod boring machining clamp which comprises a bottom plate, wherein a mounting plate perpendicular to the bottom plate is fixedly mounted on the bottom plate, a first connecting rod positioning mechanism and a second connecting rod positioning mechanism are arranged on the mounting plate, the first connecting rod positioning mechanism comprises a large-head-hole positioning column fixedly mounted on the mounting plate and a tensioning positioning mechanism for tensioning and positioning a small-head hole, the second connecting rod positioning mechanism comprises a small-head-hole positioning column fixedly mounted on the mounting plate and a tensioning positioning mechanism for tensioning and positioning the large-head hole, an auxiliary positioning mechanism is further arranged on the mounting plate, and a driving mechanism for driving each tensioning positioning mechanism to move back and forth is further arranged on the bottom plate; the connecting rod is positioned through the positioning column and the tensioning positioning mechanism, then the auxiliary positioning mechanism is used for positioning and clamping the connecting rod, the tensioning positioning mechanism is loosened, tensioning positioning is not carried out on a large-head hole or a small-head hole any more, then the driving mechanism drives the tensioning positioning mechanism to retract, and at the moment, processing of the large-head hole or the small-head hole of the connecting rod can be carried out.)

1. The connecting rod boring machining clamp is characterized by comprising a bottom plate, wherein a vertical position is fixedly mounted on the bottom plate, a mounting plate of the bottom plate is provided with a first connecting rod positioning mechanism and a second connecting rod positioning mechanism, the first connecting rod positioning mechanism comprises a big head hole positioning column fixedly mounted on the mounting plate and a tensioning positioning mechanism for tensioning a small head hole, the second connecting rod positioning mechanism comprises a small head hole positioning column fixedly mounted on the mounting plate and a tensioning positioning mechanism for tensioning a big head hole, an auxiliary positioning mechanism is further arranged on the mounting plate, and a driving mechanism for driving each tensioning positioning mechanism to move back and forth is further arranged on the bottom plate.

2. The connecting rod boring jig of claim 1, wherein the first link positioning mechanism is located on a right side of the mounting plate and the second link positioning mechanism is located on a left side of the mounting plate.

3. The connecting rod boring machining fixture as claimed in claim 1, wherein the tensioning and positioning mechanism comprises a guide cylinder fixedly mounted on the mounting plate, a piston is movably mounted in the guide cylinder, an expanding core mechanism is mounted at the outer end of the piston, an oil inlet passage and an oil return passage communicated with the expanding core mechanism are arranged on the piston, and an oil inlet pipe joint connected with an oil inlet pipe and an oil outlet pipe joint connected with an oil outlet pipe are further mounted on the piston.

4. A connecting rod boring jig according to claim 1, wherein the driving mechanism comprises a driving hydraulic cylinder fixedly mounted on the mounting plate, a piston rod of the driving hydraulic cylinder extends rearward and is fixedly mounted with a connecting plate, and the piston is fixedly mounted on the connecting plate.

5. The connecting rod boring machining fixture as claimed in any one of claims 1 to 4, wherein the auxiliary positioning mechanism comprises an elastic pressing member, the elastic pressing member comprises a spring sleeve, a sleeve cover is fixedly mounted at the upper end of the spring sleeve, a guide hole is formed in the sleeve cover, a guide post is movably mounted in the guide hole, a pressing plate is fixedly mounted at the outer end of the guide post, a baffle is fixedly mounted at the inner end of the guide post, a spring is sleeved outside the guide post, the lower end of the spring abuts against the upper surface of the baffle, and the upper end of the spring abuts against the lower surface of the sleeve cover.

Technical Field

The invention relates to a boring clamp for a connecting rod.

Background

In the prior art, when the large and small head holes of the connecting rod are machined, the large head hole and the small head hole need to be machined respectively, clamping needs to be carried out for multiple times, machining of the small head hole or the large head hole of one connecting rod can only be completed through one-time machining, machining efficiency is low, and equipment cannot be effectively utilized.

Disclosure of Invention

In order to make up for the defects, the invention provides the boring processing clamp for the connecting rod, which can effectively utilize the existing equipment and improve the processing efficiency of the small end hole and the large end hole of the connecting rod.

The technical scheme of the invention is as follows: the utility model provides a connecting rod bore hole adds clamping apparatus, includes the bottom plate, fixed mounting has the perpendicular to on the bottom plate the mounting panel of bottom plate, be equipped with first connecting rod positioning mechanism and second connecting rod positioning mechanism on the mounting panel, first connecting rod positioning mechanism includes fixed mounting and is in big head hole reference column on the mounting panel and the tight positioning mechanism that rises in the tight little head hole of tight location, second connecting rod positioning mechanism includes fixed mounting and is in little head hole reference column on the mounting panel and the tight positioning mechanism that rises in the tight big head hole of tight location still are equipped with auxiliary positioning mechanism on the mounting panel, still be equipped with the drive on the bottom plate each the actuating mechanism of the tight positioning mechanism back-and-forth movement that rises.

As a preferable technical solution, the first link positioning mechanism is located on the right side of the mounting plate, and the second link positioning mechanism is located on the left side of the mounting plate.

As the preferred technical scheme, the tensioning positioning mechanism comprises a guide cylinder fixedly mounted on the mounting plate, a piston is movably mounted in the guide cylinder, an expansion core mechanism is mounted at the outer end of the piston, an oil inlet oil way and an oil return oil way communicated with the expansion core mechanism are arranged on the piston, and an oil inlet pipe joint connected with an oil inlet pipe and an oil outlet pipe joint connected with an oil outlet pipe are further mounted on the piston.

As the preferred technical scheme, actuating mechanism includes fixed mounting drive hydraulic cylinder on the mounting panel, the piston rod of drive hydraulic cylinder extends backward and fixed mounting has the connecting plate, fixed mounting has on the connecting plate the piston.

As an optimized technical scheme, the auxiliary positioning mechanism comprises an elastic pressing part, the elastic pressing part comprises a spring sleeve, a barrel cover is fixedly mounted at the upper end of the spring sleeve, a guide hole is formed in the barrel cover, a guide post is movably mounted in the guide hole, a pressing plate is fixedly mounted at the outer end of the guide post, a baffle is fixedly mounted at the inner end of the guide post, a spring is sleeved outside the guide post, the lower end of the spring is abutted to the upper surface of the baffle, and the upper end of the spring is abutted to the lower surface of the barrel cover.

Due to the adoption of the technical scheme, the connecting rod boring machining clamp comprises a bottom plate, wherein a mounting plate perpendicular to the bottom plate is fixedly mounted on the bottom plate, a first connecting rod positioning mechanism and a second connecting rod positioning mechanism are arranged on the mounting plate, the first connecting rod positioning mechanism comprises a large-head-hole positioning column fixedly mounted on the mounting plate and a tensioning positioning mechanism for tensioning and positioning a small-head hole, the second connecting rod positioning mechanism comprises a small-head-hole positioning column fixedly mounted on the mounting plate and a tensioning positioning mechanism for tensioning and positioning a large-head hole, an auxiliary positioning mechanism is further arranged on the mounting plate, and a driving mechanism for driving each tensioning positioning mechanism to move back and forth is further arranged on the bottom plate; the connecting rod is positioned through the positioning column and the tensioning positioning mechanism, then the auxiliary positioning mechanism is used for positioning and clamping the connecting rod, the tensioning positioning mechanism is loosened, tensioning positioning is not carried out on a large-head hole or a small-head hole any more, then the driving mechanism drives the tensioning positioning mechanism to retract, and at the moment, processing of the large-head hole or the small-head hole of the connecting rod can be carried out.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2 at I;

fig. 4 is a schematic structural diagram of the elastic pressing member in the embodiment of the present invention.

Detailed Description

As shown in fig. 1 to 4, a connecting rod boring machining fixture comprises a base plate 1, wherein a mounting plate 2 perpendicular to the base plate 1 is fixedly mounted on the base plate 1, a first connecting rod positioning mechanism and a second connecting rod positioning mechanism are arranged on the mounting plate 2, the first connecting rod positioning mechanism comprises a large head hole positioning column 3 fixedly mounted on the mounting plate 2 and a tensioning positioning mechanism for tensioning a small head hole, the second connecting rod positioning mechanism comprises a small head hole positioning column 4 fixedly mounted on the mounting plate and a tensioning positioning mechanism for tensioning a large head hole, an auxiliary positioning mechanism is further arranged on the mounting plate, and a driving mechanism for driving each tensioning positioning mechanism to move back and forth is further arranged on the base plate. The connecting rod is positioned through the positioning column and the tensioning positioning mechanism, then the auxiliary positioning mechanism is used for positioning and clamping the connecting rod, the tensioning positioning mechanism is loosened, tensioning positioning is not carried out on a large-head hole or a small-head hole any more, then the driving mechanism drives the tensioning positioning mechanism to retract, and at the moment, processing of the large-head hole or the small-head hole of the connecting rod can be carried out.

First link positioning mechanism is located the right side of mounting panel 2, second link positioning mechanism is located the left side of mounting panel 2.

The tight positioning mechanism that rises includes fixed mounting and is in guide cylinder 5 on the mounting panel 2, movable mounting has piston 6 in the guide cylinder 5, core mechanism 7 that rises is installed to the outer end of piston 6, be equipped with on the piston 6 with the oil feed oil circuit 8 and the oil return oil circuit 9 of core mechanism 7 intercommunication that rise, still install the oil pipe that produces oil pipe that connects with oil inlet pipe 10 and go out oil pipe 11 and be connected on the piston 6 and connect.

The actuating mechanism includes fixed mounting drive hydraulic cylinder 12 on the mounting panel, the piston rod of drive hydraulic cylinder extends backward and fixed mounting has connecting plate 13, fixed mounting has on the connecting plate piston 6. The connecting plate is provided with a connecting rod 21, the piston is fixedly arranged on the connecting rod, the connecting plate is driven to move by a driving hydraulic cylinder, and the piston is driven to move by the connecting plate.

The auxiliary positioning mechanism comprises an elastic pressing part, the elastic pressing part comprises a spring sleeve 14, the upper end of the spring sleeve is fixedly provided with a sleeve cover 15, a guide hole is formed in the sleeve cover, a guide post 16 is movably arranged in the guide hole, a pressing plate 17 is fixedly arranged at the outer end of the guide post, a baffle 18 is fixedly arranged at the inner end of the guide post 16, a spring 19 is sleeved outside the guide post 16, the lower end of the spring 19 is abutted to the upper surface of the baffle 18, and the upper end of the spring is abutted to the lower surface of the sleeve cover 15. The spring presses the baffle downwards, and the guide post is fixedly connected with the baffle and is also pressed downwards, so that the pressing plate is pressed on the workpiece. The auxiliary positioning mechanism further comprises a hydraulic pressure plate 20 and the like.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.