CN213795424U

CN213795424U - Knuckle anchor clamps

Info

Publication number: CN213795424U
Application number: CN202022925539.1U
Authority: CN
Inventors: 冯美青; 王雪松; 吴玉; 鲁宝军; 王雪峰; 徐佐; 武汉琦
Original assignee: CITIC Dicastal Co Ltd
Current assignee: CITIC Dicastal Co Ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-07-27
Anticipated expiration: 2030-12-09

Abstract

The utility model belongs to the technical field of clamps for automobile parts, and provides a steering knuckle clamp, which comprises a clamp body and two bilaterally symmetrical stations, and can clamp a left workpiece and a right workpiece by 2, so that the processing efficiency is improved; the fixture body is made of aviation aluminum alloy materials, and the mechanical property, the strength and the surface hardness of the material are enhanced through reasonable machining process, heat treatment process and surface treatment process, so that the performance of No. 45 steel materials with the same size is achieved, the production requirement is met, and the weight is effectively reduced; the station includes positioning seat and three clamping component that is triangular distribution, there are location cover, toper dabber and the first hydro-cylinder that rises in the positioning seat, clamping component includes second hydro-cylinder and clamp plate, and the clamping operation of anchor clamps is simple, is favorable to the improvement of machining efficiency.

Description

Knuckle anchor clamps

Technical Field

The application relates to the technical field of clamps of automobile parts, in particular to a steering knuckle clamp.

Background

The machining of automobile steering knuckle parts is in large batch, because the angles of machined surfaces and holes are different, a common machining process is to use a hydraulic clamp to machine on a five-axis machining center machine tool, the clamp body of the conventional hydraulic clamp is made of a No. 45 steel material, the weight is heavier, the requirement on the bearing of the machine tool is high, in addition, the clamp with a single station is low in machining efficiency, the complex clamping structural design causes clamping trouble, the clamping efficiency is low, whether clamping is in place cannot be detected, and the positioning accuracy cannot be ensured.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a steering knuckle clamp which can solve the problems in the background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the first aspect provides a steering knuckle clamp which comprises a clamp body and two bilaterally symmetrical stations, wherein the two stations are arranged on the clamp body and are made of aviation aluminum alloy materials; the conical core shaft is fixed on a piston rod of the first oil cylinder, the positioning expansion sleeve is expanded when the conical core shaft moves downwards and is released when the conical core shaft moves upwards, or the positioning expansion sleeve is fixed on the piston rod of the first oil cylinder, the positioning expansion sleeve is expanded when the positioning expansion sleeve is driven by the first oil cylinder to move downwards and is released when the positioning expansion sleeve is driven by the first oil cylinder to move upwards; the clamping assembly comprises a second oil cylinder and a pressing plate, and the pressing plate is fixed on a piston rod of the second oil cylinder.

In some embodiments, the clamp further comprises a mounting mandrel fixed to the bottom of the clamp body, the mounting mandrel being used for connecting with equipment.

In some embodiments, the positioning surface of the positioning seat is provided with an airtight detection hole for detecting whether the steering knuckle is clamped in place.

In some embodiments, each station is provided with 3 auxiliary supports, which correspond to the positions of the pressure plates of the three clamping assemblies respectively; the auxiliary support comprises a third oil cylinder and a supporting block, and the supporting block is fixed on a piston rod of the third oil cylinder.

In some embodiments, each station is further fixedly provided with a guide rod, and the guide rod is used for enabling the steering knuckle to be fixed only.

In some embodiments, the station is provided with an angular positioning pin for inserting into a bracket hole of the knuckle to position the knuckle.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a steering knuckle clamp, which comprises a clamp body and two stations which are symmetrical left and right, and can clamp left and right 2 workpieces, thereby improving the processing efficiency; the fixture body is made of aviation aluminum alloy materials, and the mechanical property, the strength and the surface hardness of the material are enhanced through reasonable machining process, heat treatment process and surface treatment process, so that the performance of No. 45 steel materials with the same size is achieved, the production requirement is met, and the weight is effectively reduced; the station includes positioning seat and three clamping component that is triangular distribution, there are location cover, toper dabber and the first hydro-cylinder that rises in the positioning seat, clamping component includes second hydro-cylinder and clamp plate, and the clamping operation of anchor clamps is simple, is favorable to the improvement of machining efficiency. In addition, 3 airtight inspection holes on the positioning seat plane can detect whether press from both sides tightly and target in place, if not target in place can cause airtight detection to report to the police, guarantee that the installation of machined part is correct, guarantee that the clamping location is accurate. The arrangement of the angular positioning pin enables the steering knuckle to be accurately positioned, the guide rod is used for enabling the steering knuckle to be fixed in a unique mode, and the auxiliary support is designed to enable the steering knuckle to be clamped more firmly, so that subsequent machining can be accurately carried out.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a top view of a knuckle clamp of the present application.

FIG. 2 is a front view of a knuckle clamp of the present application.

FIG. 3 is a schematic diagram of a positioning expanding sleeve and a conical mandrel of a knuckle clamp according to the present application.

FIG. 4 is a schematic diagram of another embodiment of the present invention for positioning the sleeve and the tapered mandrel.

Wherein: the device comprises a clamp body 1, a positioning seat 2, a positioning expansion sleeve 3, a conical mandrel 4, a first oil cylinder 5, a clamping assembly 6, a second oil cylinder 7, a pressing plate 8, an installation mandrel 9, an airtight detection hole 10, an auxiliary support 11, a third oil cylinder 12, a supporting block 13, a guide rod 14 and an angular positioning pin 15.

Detailed Description

The terms "first," "second," "third," and "fourth," etc. in the description and claims of this application and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Example 1:

with reference to the accompanying drawings 1-3 in the specification, the knuckle clamp provided in the embodiment 1 of the application comprises a clamp body 1, a mounting mandrel 9 and two bilaterally symmetrical stations. The two stations are arranged on the fixture body 1, and the fixture body 1 is made of aviation aluminum alloy materials. The installation mandrel 9 is fixed at the bottom of the fixture body 1, and the installation mandrel 9 is used for being connected with external processing equipment.

The clamp body 1 of the clamp is made of an aviation aluminum alloy material, and the mechanical property, the strength and the surface hardness of the material are enhanced through a reasonable machining process, a heat treatment process and a surface treatment process, so that the performance of No. 45 steel materials with the same size is achieved, and the production requirement is met.

The station comprises a positioning seat 2, an angular positioning pin 15, a guide rod 14 and three clamping assemblies 6 which are distributed triangularly. The positioning seat is internally provided with a positioning expansion sleeve 3, a conical core shaft 4 and a first oil cylinder 5, the conical core shaft 4 is fixed on a piston rod of the first oil cylinder 5, and the positioning expansion sleeve 3 is sleeved on the conical core shaft 4. Under the drive of the piston rod of first hydro-cylinder 5, toper dabber 4 can with the location rises and overlaps 3 cooperatees, will the location rises 3 diameters of cover and props greatly to fix a position and press from both sides tightly the knuckle, simultaneously, also can the location rises 3 diameters of cover and also can the reconversion, thereby relax right the clamp of knuckle is tight. As shown in fig. 3, in one mode of the schematic diagram of the matching structure of the positioning expansion sleeve and the tapered mandrel, the tapered mandrel is fixed on the piston rod of the first oil cylinder, and the positioning expansion sleeve is tensioned when the tapered mandrel moves downwards and is loosened when the tapered mandrel moves upwards. The positioning expansion sleeve 3 is made of materials with certain elasticity, flexibility or flexibility. And an airtight detection hole 10 is formed in the positioning surface of the positioning seat and used for detecting whether the steering knuckle is clamped in place or not. An angular positioning pin 15 is installed on the station, and the angular positioning pin 15 is used for being inserted into a support hole of the steering knuckle to position the steering knuckle. Each station is also fixedly provided with a guide rod 14, and the guide rods 14 are used for enabling the steering knuckle to be fixed only.

The clamping assembly 6 comprises a second oil cylinder 7, a pressing plate 8 and an auxiliary support 9, wherein the pressing plate 8 is fixed on a piston rod of the second oil cylinder 7. And 3 auxiliary supports 11 are arranged at each station and respectively correspond to the positions of the pressing plates 8 of the three clamping components. The auxiliary support 11 comprises a third oil cylinder 12 and a support block 13, and the support block 13 is fixed on a piston rod of the third oil cylinder 12. The second oil cylinder 7 and the third oil cylinder 12 are installed on the fixture body 1 through a cushion block module. The installation mandrel 9 is provided with an oil path and an air path hole, and the installation mandrel is installed at the lower part of the clamp body and is connected with external processing equipment.

Because the weight of the knuckle hydraulic clamp is more than 60% of the weight of the clamp body 1, aiming at the defects of the knuckle clamp, the knuckle hydraulic clamp with the air tightness detection function for the aviation aluminum clamp body is designed in the embodiment 1, so that the weight of the clamp body 1 is only 35% of the weight of the No. 45 steel clamp body, the total weight of the clamp is reduced from 166kg to 94kg, the normal use of equipment bearing 150kg can be met, the production efficiency is improved, and the manufacturing period and the cost of the clamp are reduced.

The knuckle clamp in embodiment 1 is provided with 2 stations which can clamp 2 left and right workpieces, and the workpiece at each station is positioned by a positioning seat arranged on the clamp body, a positioning expansion sleeve 3 arranged in the positioning seat and an angular positioning pin 15 arranged on the clamp body. When a workpiece is clamped, the piston rod on the first oil cylinder 5 moves downwards, the conical mandrel 4 is connected with the piston rod of the first oil cylinder 5, the positioning expansion sleeve 3 is tensioned through the conical mandrel 4 to fix the center of the workpiece, and the plane of the workpiece is tightly pulled on the plane of the fixture positioning seat by the first oil cylinder 5. 3 airtight inspection holes 10 on the positioning seat plane can detect whether press from both sides tightly and target in place, if not target in place can trigger airtight inspection and report to the police, guarantee the installation of machined part correct.

The lower surface of the hydraulic clamp is provided with a mounting core shaft 9, the mounting core shaft 9 is provided with an oil path hole and an air path hole, and the oil path hole and the air path hole are connected with oil and air path holes on machining center equipment or a machine tool workbench through the oil path hole and the air path hole, so that hydraulic oil and an air tightness detection hole can be smoothly connected and sealed.

Different cushion block modules are arranged on the fixture body 1, and a second oil cylinder 7 of an auxiliary supporting and clamping assembly is arranged on the cushion block modules to support and clamp the positioned and installed workpiece in an auxiliary manner.

After the workpiece is machined, the second oil cylinder 7 of the clamping assembly and the third oil cylinder 12 of the auxiliary support are loosened through the hydraulic oil circuit, and the positioning expansion sleeve 3 is loosened through the first oil cylinder 5, so that the workpiece can be taken down. The clamp can clamp a left piece and a right piece, is accurate in positioning and reliable in clamping, and improves the machining efficiency.

Example 2

Example 2 differs from example 1 in that: the positioning expansion sleeve 3 and the conical mandrel 4 are different in matching structure, the positioning expansion sleeve is fixed on a piston rod of the first oil cylinder, and the positioning expansion sleeve is tensioned when driven by the first oil cylinder to move downwards and is released when driven by the first oil cylinder to move upwards. Specifically, as shown in fig. 4, the tapered mandrel 4 is fixed in the positioning seat 2, the positioning expansion sleeve 3 is sleeved on the tapered mandrel 4, and the piston rod of the first oil cylinder 5 is fixedly connected with the positioning expansion sleeve 3. Under the drive of the piston rod of first hydro-cylinder 5 the cover 3 that rises in location can reciprocate, the cover 3 that rises in location can with 4 cooperatees of toper dabber will the cover 3 diameters that rises in location prop greatly to fix a position and press from both sides tightly the knuckle, simultaneously, also can the cover 3 diameters that rises in location also can the reconversion, thereby relax right the tight of clamp of knuckle.

Specifically, when a workpiece is clamped, the positioning expansion sleeve 3 moves downwards together with the piston rod of the first oil cylinder 5 through the downward movement of the piston rod on the first oil cylinder 5, the positioning expansion sleeve 3 is tensioned through the conical mandrel 4 to fix the center of the workpiece, and the plane of the workpiece is tightly pulled on the plane of the positioning seat of the clamp through the first oil cylinder 5. The rest of embodiment 2 is the same as embodiment 1, and is not described again here.

The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A knuckle clamp is characterized by comprising a clamp body and two bilaterally symmetrical stations, wherein the two stations are arranged on the clamp body and are made of aviation aluminum alloy materials, each station comprises a positioning seat and three clamping assemblies in triangular distribution,

the positioning seat is internally provided with a positioning expansion sleeve, a conical core shaft and a first oil cylinder, and the positioning expansion sleeve is sleeved on the conical core shaft; the conical core shaft is fixed on a piston rod of the first oil cylinder, the positioning expansion sleeve is expanded when the conical core shaft moves downwards and is released when the conical core shaft moves upwards, or the positioning expansion sleeve is fixed on the piston rod of the first oil cylinder, the positioning expansion sleeve is expanded when the positioning expansion sleeve is driven by the first oil cylinder to move downwards and is released when the positioning expansion sleeve is driven by the first oil cylinder to move upwards;

the clamping assembly comprises a second oil cylinder and a pressing plate, and the pressing plate is fixed on a piston rod of the second oil cylinder.

2. The knuckle clamp of claim 1 further comprising a mounting mandrel secured to the bottom of the clamp body, the mounting mandrel adapted to be connected to a device.

3. The knuckle clamp according to claim 1, wherein an airtight detection hole is formed in a positioning surface of the positioning seat and used for detecting whether the knuckle is clamped in place.

4. The knuckle clamp according to claim 1, wherein each station is provided with 3 auxiliary supports corresponding to the positions of the pressure plates of the three clamping assemblies; the auxiliary support comprises a third oil cylinder and a supporting block, and the supporting block is fixed on a piston rod of the third oil cylinder.

5. The knuckle clamp according to claim 1, wherein a guide bar is further fixedly arranged on each station, and the guide bar is used for enabling the knuckle to be fixed in a unique mode.

6. The knuckle clamp of claim 1, wherein the station is provided with an angular positioning pin for insertion into a bracket hole of the knuckle to position the knuckle.