CN203109377U - Clamp used for automobile steering device rack tooth grinding machining - Google Patents
Clamp used for automobile steering device rack tooth grinding machining Download PDFInfo
- Publication number
- CN203109377U CN203109377U CN 201320041839 CN201320041839U CN203109377U CN 203109377 U CN203109377 U CN 203109377U CN 201320041839 CN201320041839 CN 201320041839 CN 201320041839 U CN201320041839 U CN 201320041839U CN 203109377 U CN203109377 U CN 203109377U
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- press blocks
- floating press
- clamp
- briquetting
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Abstract
The utility model relates to a clamp used for automobile steering device rack tooth grinding machining and belongs to the field of grinding machining tool clamps. The clamp is composed of a base plate, a base, floating press blocks, a left supporting base, a right supporting base, hydraulic cylinders and brackets. The floating press blocks are arranged on the top of the base at intervals through the left supporting base and the right supporting base, and pin rods are arranged on the floating press blocks. The brackets are symmetrically arranged between every two adjacent floating press blocks. The hydraulic cylinders are symmetrically arranged inside the base below the floating press blocks, and piston rods are fixedly connected with the floating press blocks through matching of knuckle bearings and the pin rods. The clamp used for automobile steering device rack tooth grinding machining can form clamping on multiple workpieces through the brackets and the floating press blocks, tightly presses the workpieces through the hydraulic cylinders, and solves the problems that an existing single clamp is low in working efficiency, machining precision is greatly influenced by human factors, and requirements are not met. The clamp is reliable in clamping, and can be widely used for forming machining of other round stick materials on a numerical control forming grinding machine.
Description
Technical field
The utility model relates to a kind of anchor clamps for the grinding of automobile steering device rack teeth, belongs to grinding frock clamp field.
Background technology
Steering gear is the critical component of automobile, and steering gear rack is the vital part of rack and pinion steering gear, and rack teeth grinding operation is the critical process of tooth bar processing, and the quality of rack teeth crudy is directly connected to the handling of automobile; The processing of tooth portion is bad, can occur situations such as " hair fastener ", " abnormal sound " during motor turning.Present domestic steering gear rack tooth portion grinding anchor clamps adopt inlet fixture mostly, because its procurement price height, cycle are long; Part producer still adopts the anchor clamps of armstrong's patent clamping, single-piece work at present.But this anchor clamps working (machining) efficiency is low, and machining accuracy influenced by human factor bigger, often do not reach requirement.
Summary of the invention
The purpose of this utility model is: a kind of reliable clamping, clamping precision height, many clampings simultaneously are provided, to solve the inefficiency of existing single-piece anchor clamps, and it is bigger that machining accuracy is influenced by human factor, often do not reach the anchor clamps that are used for the grinding of automobile steering device rack teeth that require problem.
The technical solution of the utility model is:
A kind of anchor clamps for the grinding of automobile steering device rack teeth, it by base plate,
Base, float briquetting, left supporting seat, right supporting seat, hydraulic cylinder and bracket constitute, it is characterized in that: be installed with base on the base plate, base top is equipped with a plurality of unsteady briquettings at interval by left supporting seat and right supporting seat, is respectively arranged with pin rod on the briquetting that floats; Symmetry shape is equipped with bracket between two adjacent unsteady briquettings; Symmetry shape is equipped with hydraulic cylinder in the base of each unsteady briquetting below, the piston rod part of hydraulic cylinder is fixed with oscillating bearing by connector, piston rod is fixedlyed connected with cooperating with unsteady briquetting of pin rod by oscillating bearing, the rear and front end of unsteady briquetting is separately installed with positive stop and support bar by base, on the piston rod of described hydraulic cylinder spring is installed.
Advantage of the present utility model is:
The clamp structure that should be used for the grinding of automobile steering device rack teeth is simple, in the course of work, the a plurality of workpiece that can treat grinding by bracket and unsteady briquetting form clamping, and by hydraulic cylinder workpiece is compressed, can effectively improve working (machining) efficiency and machining accuracy, solved the inefficiency of existing single-piece anchor clamps, and machining accuracy influenced by human factor bigger, often do not reach the problem of requirement.And the utility model adopts spring to add that hydraulic pressure clamps simultaneously, the mode of hydraulic unlock to workpiece, reliable clamping; The clamping chamber of each hydraulic cylinder with unclamp the chamber and gang up respectively by oil circuit in the base, hydraulic pressure is identical in each hydraulic cylinder, each point clamping force unanimity.Clamp degree of being parallel to each other≤0.02 between each workpiece of back, rack central line difference in height≤0.02; Can expand the shaping processing for other round bars on the numerical control formation grinding machine.
Description of drawings
Fig. 1 is plan structure schematic diagram of the present utility model;
Fig. 2 is sectional structure schematic diagram of the present utility model.
Among the figure: 1, base plate, 2, base, 3, the briquetting that floats, 4, left supporting seat, 5, right supporting seat, 6, hydraulic cylinder, 7, bracket, 8, pin rod, 9, piston rod, 10, connector, 11, oscillating bearing, 12, spring, 13, positive stop, 14, support bar.
The specific embodiment
The anchor clamps that should be used for the grinding of automobile steering device rack teeth are made of base plate 1, base 2, float briquetting 3, left supporting seat 4, right supporting seat 5, hydraulic cylinder 6 and bracket 7.Be installed with base 2 on the base plate 1, base 2 tops are equipped with a plurality of unsteady briquettings 3 at interval by left supporting seat 4 and right supporting seat 5.
Be respectively arranged with pin rod 8 on the unsteady briquetting 3; Symmetry shape is equipped with bracket 7 between two adjacent unsteady briquettings 3; Symmetry shape is equipped with hydraulic cylinder 6 before and after being in the base 2 of each unsteady briquetting 3 below.On the piston rod 9 of hydraulic cylinder 6 spring 12 is installed, piston rod 9 tops of hydraulic cylinder 6 are fixed with oscillating bearing 11 by connector 10, and piston rod 9 is fixedlyed connected with cooperating with unsteady briquetting 3 of pin rod 8 by oscillating bearing 11.The rear and front end of unsteady briquetting 3 is separately installed with positive stop 13 and support bar 14 by base 2.
During work, hydraulic valve on the machine tool hydraulic station is delivered to pressure oil in the chamber of unclamping of hydraulic cylinder 6, thereby will float briquetting 3 jack-up, be inserted into workpiece (steering gear rack) in the anchor clamps from the hole of unsteady briquetting 3 formation of bracket 7 and jack-up this moment, workpiece end face contacts with positive stop 13, again by the hydraulic valve on the floor push switching lathe Hydraulic Station, pressure oil is delivered to the clamping chamber of hydraulic cylinder 6, pressure oil enters into and with spring 12 piston rod 9 is produced pulling force after hydraulic cylinder 6 clamps the chamber, piston rod 9 is by oscillating bearing 11, pin rod 8 passes to the briquetting 3 that floats with pulling force, the briquetting 3 that floats presses down Work-sheet pressing on bracket 7, can start lathe workpiece is carried out profile grinding of gear.
Unsteady briquetting 3 upper surfaces of the present utility model are the plane, add for the first time connect man-hour workpiece and unsteady briquetting 3 together grinding go out profile of tooth.Each unsteady briquetting 3 compresses adjacent two workpiece, adjacent two unsteady briquettings 3 compress a toothed rack jointly, the briquetting 3 that floats is connected by oscillating bearing 11 with piston rod 9, can about float, assurance is to the thrust unanimity of adjacent two workpiece, the clamping chamber of each hydraulic cylinder 6 with unclamp the chamber and gang up respectively, guarantee each point clamping force unanimity.
The anchor clamps that should be used for the grinding of automobile steering device rack teeth can carry out grinding by 7 workpiece of a clamping.Solved the inefficiency of existing single-piece anchor clamps, and machining accuracy influenced by human factor bigger, often do not reach the problem of requirement.And the utility model reliable clamping, clamping precision height; Clamp degree of being parallel to each other≤0.02 between each workpiece of back, rack central line difference in height≤0.02; Can expand the shaping processing for other round bars on the numerical control formation grinding machine.
Claims (1)
1. anchor clamps that are used for the grinding of automobile steering device rack teeth, it is made of base plate (1), base (2), float briquetting (3), left supporting seat (4), right supporting seat (5), hydraulic cylinder (6) and bracket (7), it is characterized in that: be installed with base (2) on the base plate (1), base (2) top is equipped with a plurality of unsteady briquettings (3) at interval by left supporting seat (4) and right supporting seat (5), is respectively arranged with pin rod (8) on the briquetting (3) that floats; Symmetry shape is equipped with bracket (7) between adjacent two unsteady briquettings (3); The interior symmetry shape of base (2) of unsteady briquetting (3) below is equipped with hydraulic cylinder (6), piston rod (9) top of hydraulic cylinder (6) is fixed with oscillating bearing (11) by connector (10), piston rod (9) is fixedlyed connected with cooperating with unsteady briquetting (3) of pin rod (8) by oscillating bearing (11), the rear and front end of unsteady briquetting (3) is separately installed with positive stop (13) and support bar (14) by base (2), on the piston rod (9) of described hydraulic cylinder (6) spring (12) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320041839 CN203109377U (en) | 2013-01-27 | 2013-01-27 | Clamp used for automobile steering device rack tooth grinding machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320041839 CN203109377U (en) | 2013-01-27 | 2013-01-27 | Clamp used for automobile steering device rack tooth grinding machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203109377U true CN203109377U (en) | 2013-08-07 |
Family
ID=48889753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320041839 Expired - Fee Related CN203109377U (en) | 2013-01-27 | 2013-01-27 | Clamp used for automobile steering device rack tooth grinding machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203109377U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920942A (en) * | 2014-04-29 | 2014-07-16 | 浙江博雷重型机床制造有限公司 | Tool structure used for fixing racks fast |
| CN104043878A (en) * | 2014-04-29 | 2014-09-17 | 浙江博雷重型机床制造有限公司 | Rack milling and drilling production line transmission structure |
| CN104589109A (en) * | 2014-11-24 | 2015-05-06 | 上海奥林汽车安全系统有限公司 | Milling clamp for milling molded surface |
| CN104772645A (en) * | 2015-04-30 | 2015-07-15 | 荆州恒隆汽车零部件制造有限公司 | Feeding trolley for processing axial parts of automobile steering devices |
-
2013
- 2013-01-27 CN CN 201320041839 patent/CN203109377U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103920942A (en) * | 2014-04-29 | 2014-07-16 | 浙江博雷重型机床制造有限公司 | Tool structure used for fixing racks fast |
| CN104043878A (en) * | 2014-04-29 | 2014-09-17 | 浙江博雷重型机床制造有限公司 | Rack milling and drilling production line transmission structure |
| CN103920942B (en) * | 2014-04-29 | 2016-05-11 | 浙江博雷重型机床制造有限公司 | A kind of for the fixing Rapid tooling structure of tooth bar |
| CN104589109A (en) * | 2014-11-24 | 2015-05-06 | 上海奥林汽车安全系统有限公司 | Milling clamp for milling molded surface |
| CN104772645A (en) * | 2015-04-30 | 2015-07-15 | 荆州恒隆汽车零部件制造有限公司 | Feeding trolley for processing axial parts of automobile steering devices |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20170127 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |