CN208322792U

CN208322792U - A kind of compound clamping device of hydraulic type multiple station spring

Info

Publication number: CN208322792U
Application number: CN201820379901.XU
Authority: CN
Inventors: 施长岗; 王成
Original assignee: Johnson Precision Engineering Suzhou Co Ltd
Current assignee: Johnson Precision Engineering Suzhou Co Ltd
Priority date: 2018-03-20
Filing date: 2018-03-20
Publication date: 2019-01-04
Anticipated expiration: 2028-03-20

Abstract

A hydraulic multi-position spring compound clamping device, comprising a fixed plate, a movable plate is arranged below the fixed plate, a special screw that penetrates upward through the movable plate is arranged in the center of the movable plate, and the special screw is connected with the movable plate by a thread. A fixing column is fixedly installed on the fixing plate, and the fixing column is fixedly connected with a special screw through a connecting screw. A number of fixing units are also arranged on the upper surface of the fixing plate. The lower part of the T-shaped tie rod penetrates the fixed plate and the movable plate downward, the lower surface of the lower part of the T-shaped tie rod is fixedly connected with a spring screw, the spring screw is located under the movable plate, and a spring is arranged between the spring screw and the movable plate. The assembly and disassembly of the whole device can be realized, and the automatic clamping of the product is realized by the spring force, which ensures that the clamping force of the product can realize the simple and convenient assembly and disassembly of the product.

Description

A kind of compound clamping device of hydraulic type multiple station spring

Technical field

The utility model relates to mechanical manufacturing field more particularly to a kind of compound clamping device of hydraulic type multiple station spring and Clamping method.

Background technique

Machine-building be unable to do without Metal Cutting Machine Tool, and machine tool clamping device is then to guarantee mechanical processing quality, improve life Efficiency is produced, reduces labor intensity, reduce the excessive demand to worker's technology, indispensable important of realization Automation of Manufacturing Process One of technological equipment.Machine tool clamping device is widely used in manufacturing industry, and the use of a large amount of special purpose machine tool clamping devices is large quantities of Amount production provides necessary condition.It in the past after workpiece finishes line, is installed with chuck by line, reprocesses inner hole.? During correction, when adjusting two pawl being clipped on cylindrical surface, workpiece generates rolling, and the center line in scribing line hole is made to generate angle position It moves, is difficult workpiece correction, and generate processing waste product.People have manufactured and designed clamping device thus, pass through the use of many years, effect Fruit is fine.

As processing manufacturing industry rapidly develops, the precision and production efficiency requirement to process component are higher, show and add Process is concentrated in work, and the form processing of people's multimachine, the multiple parts of a machine is widely adopted.Then tooling clamping device is wanted It asks also higher and higher, pneumatic and hydraulic two kinds more advanced tooling clamping devices, the appearance of these advanced installation way occurs The tradition positioning method that manually clamping adjusts is changed, machining accuracy is improved, processing non-cutting time is shortened, improves life Efficiency is produced, in transmission mechanism, generally commonly uses the eccentric parts such as eccentric shaft or crankshaft to complete rotary motion and move back and forth mutual The function of conversion, thus eccentric part applied in machine driving it is very extensive.Common turning clamping method is: top with two Clamping workpiece, with three-jaw self-centering chuck clamping workpiece, with four-jaw chuck clamping workpiece.Because of product requirement, need Milling Process is carried out on the eccentric shaft processed, this just needs to carry out effective positioning and fixing to product, to process, and shows Some clamping methods are clamped using Bidirectional flat-nose pliers positioning, or carry out clamping using three-jaw self-centering chuck mode.But these Clamping positioning method is all difficult to ensure its precision on position degree and symmetry, and discontinuity can be then deformed, dress The folder time is longer, low efficiency.

For Mechanical Product's Machining, usual bulk article is if single processing, the much time on product clamping Power, and Product Precision and dimensional uniformity it is difficult to ensure that, low efficiency.In order to improve efficiency, save the cost is sought in product handling It asks and shortens the time.Existing fixture scheme is processed, but this method is same using fixture last time clamping more than one piece product Sample needs piecemeal individually tighten independent release, discontinuity, be easy to appear clamping force not enough or Overexertion to Lead to scrap of the product, the assembly and disassembly period is longer, and production efficiency is low.

Utility model content

The utility model is intended to provide a kind of compound clamping device of hydraulic type multiple station spring and clamping method.

To realize the above-mentioned technical purpose, the utility model uses following technical scheme, and a kind of hydraulic type multiple station spring is multiple Clamping device, including fixed plate are closed, the both ends of the fixed plate are located on support fastening block by positioning pin, and fixed plate is with regard to this It is fixedly connected with support fastening block, pressing plate is equipped with above fixed plate, the pressing plate passes through the bridge screw and branch stretching through it Gu block is fixed together and clamps positioning pin and fixed plate, movable plate, the center of movable plate are equipped with below fixed plate It equipped with the special screw for extending upward through movable plate, is threadedly coupled between special screw and movable plate, fixed peace in the fixed plate Equipped with fixed column, fixed column runs through fixed plate up and down, is equipped with A bearing at the upper surface of fixed plate and the shaft shoulder of fixed column, Gu The lower end of fixed board and fixed column is equipped with B axle close at special screw and holds, and fixed column is fixed by joint bolt and special screw It links into an integrated entity, there are certain interval, the wheel and racks of special screw lower end surface between special screw upper surface and fixed plate Rack pinion is cooperatively formed, rack gear is fixedly connected with hydraulic cylinder piston, and hydraulic cylinder body is fixed on the table, described solid The upper surface of fixed board is additionally provided with several fixed cells, and the fixed cell includes T-type pull rod, position-limitting pin, spring screw, bullet Spring, push-off pin and ejection via hole, the lower part of the T-type pull rod is downward through fixed plate and movable plate, the following table of T-type pull rod lower part Face is fixedly connected with spring screw, and spring screw is located at below movable plate, and spring is equipped between spring screw and movable plate, and T-type is drawn The transverse part of bar, which is limited pin, to be run through, and position-limitting pin is simultaneously downward through fixed plate, and the lower section of T-type pull rod transverse part is for placing work Part, the lower section of workpiece are equipped with several ejection via holes for running through fixed plate, the position of the corresponding ejection via hole in the upper surface of movable plate It is fixed with several push-off pins.

Preferably, each fixed cell is set below workpiece, there are four eject via hole.

Preferably, the lower section of fixed cell T-type pull rod is equipped with workpiece slot for placing workpiece, the ejection via hole is located at In workpiece slot.

A kind of compound clamping device of hydraulic type multiple station spring provided by the utility model, this device are by a screw The assembly and disassembly that whole device product can be achieved, product Automatic-clamping is realized by spring force, ensure that product chucking power can be with It realizes that product is simple and can easily complete clamping and disassembly, reduce the working strength of employee, improve product processing quality, drop Low scrappage, improves efficiency, and saves the time, increases interests.

Detailed description of the invention

The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will Become obvious and be readily appreciated that, in which:

Fig. 1 is the structural schematic diagram of the utility model embodiment；

Fig. 2 is the top view of the utility model embodiment；

Fig. 3 is the cross-sectional view of the utility model；

Fig. 4 is the schematic diagram of special screw, rack gear and hydraulic cylinder；

Fig. 5 is the enlarged drawing of special screw and T-type pull rod.

In figure: 1, bridge screw；2, pressing plate；3, positioning pin；4, fastening block is supported；5, fixed plate；6, via hole is ejected；7,T Type pull rod；8, position-limitting pin；9, special screw；10, movable plate；11, push-off pin；12, fixed column；13, joint bolt；14, bullet Spring；15, spring screw；16, workpiece；17, A bearing；18, B axle is held；19, rack gear；20, hydraulic cylinder.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model Limitation.

In the description of the present invention, unless otherwise specified and limited, it should be noted that term " installation ", " phase Even ", " connection " shall be understood in a broad sense, for example, it may be mechanical connection or electrical connection, the company being also possible to inside two elements It is logical, it can be directly connected, it can also be indirectly connected through an intermediary.For the ordinary skill in the art, may be used To understand the concrete meaning of above-mentioned term as the case may be.

Referring to Fig. 1 to Fig. 5 description according to a kind of compound folder of hydraulic type multiple station spring of the utility model embodiment The both ends of tight device, including fixed plate 5, the fixed plate 5 are located on support fastening block 4 by positioning pin 3, and fixed plate 5 is just This with support fastening block 4 be fixedly connected, above fixed plate 5 be equipped with pressing plate 2, the pressing plate 2 by through its bridge screw 1 with Support fastening block 4 is fixed together and clamps positioning pin 3 and fixed plate 5, and movable plate 10, activity are equipped with below fixed plate 5 The center of plate 10 is equipped with the special screw 9 for extending upward through movable plate 10, and screw thread connects between special screw 9 and movable plate 10 Connect, be fixedly installed with fixed column 12 in the fixed plate 5, about 12 fixed column runs through fixed plate 5, the upper surface of fixed plate 5 with A bearing 17 is installed, fixed plate 5 and the lower end of fixed column 12 are equipped with B axle close at special screw 9 at the shaft shoulder of fixed column 12 18 are held, fixed column 12 is fixedly connected integrally by joint bolt 13 with special screw 9,9 upper surface of special screw and fixed plate 5 Between there are certain interval, the wheel and rack 19 of 9 lower end surface of special screw cooperatively forms rack pinion, rack gear 19 and liquid 20 piston of cylinder pressure is fixedly connected, and 20 cylinder body of hydraulic cylinder is fixed on the table, and the upper surface of the fixed plate 5 is additionally provided with several Fixed cell, the fixed cell include T-type pull rod 7, position-limitting pin 8, spring screw 15, spring 14, push-off pin 11 and ejection Via hole 6, downward through fixed plate 5 and movable plate 10, the lower surface of 7 lower part of T-type pull rod is fixed to be connected for the lower part of the T-type pull rod 7 Spring screw 15 is connect, spring screw 15 is located at 10 lower section of movable plate, spring 14, T is equipped between spring screw 15 and movable plate 10 The transverse part of type pull rod 7, which is limited pin 8, to be run through, and position-limitting pin 8 is simultaneously downward through fixed plate 5, the lower section of 7 transverse part of T-type pull rod For placing workpiece 16, the lower section of workpiece 16 is equipped with several ejection via holes 6 for running through fixed plate 5, the upper surface of movable plate 10 The position of corresponding ejection via hole 6 is fixed with several push-off pins 11.

Preferably, each fixed cell is set in the lower section of workpiece 16, there are four eject via hole 6.

Preferably, the lower section of fixed cell T-type pull rod 7 is equipped with workpiece slot for placing workpiece 16, the ejection via hole 6 It is located in workpiece slot.

A kind of compound clamping device of hydraulic type multiple station spring provided by the utility model, this device are by a screw The assembly and disassembly that whole device product can be achieved, product Automatic-clamping is realized by spring force, ensure that product chucking power can be with It realizes that product is simple and can easily complete clamping and disassembly, reduce the working strength of employee, improve product processing quality, drop Low scrappage, improves efficiency, and saves the time, increases interests.In the description of this specification, reference term " one embodiment ", The description of " example " or " some examples " etc. mean specific features described in conjunction with this embodiment or example, structure, material or Feature is contained at least one embodiment or example of the utility model.In the present specification, to the schematic of above-mentioned term Statement may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with It can be combined in any suitable manner in any one or more of the embodiments or examples.

While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that: These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective And modification, the scope of the utility model are defined by the claims and their equivalents.

Claims

1. A hydraulic multi-position spring composite clamping device is characterized in that, comprising a fixing plate, the two ends of the fixing plate are positioned on the supporting and tightening block by locating pins, and the fixing plate is thus fixed with the supporting and tightening block. Connection, a pressure plate is arranged above the fixed plate, the pressure plate is fixedly connected with the support and fastening block through the pressure plate screw passing through it, and clamps the positioning pin and the fixed plate, a movable plate is arranged under the fixed plate, and the center of the movable plate is set There are special screws that penetrate the movable plate upward, and the special screws and the movable plate are threadedly connected. The fixed plate is fixedly installed with a fixed column. The fixed column penetrates the fixed plate up and down, and the upper end face of the fixed plate is installed at the shoulder of the fixed column. There are A bearings, B bearings are installed at the lower end of the fixing plate and the fixing column close to the special screws, the fixing column is fixedly connected with the special screws through the connecting screws, and there is a certain gap between the upper end surface of the special screws and the fixing plate, and the lower part of the special screws The gears on the end face cooperate with the racks to form a rack and pinion transmission, the racks are fixedly connected with the pistons of the hydraulic cylinders, the cylinders of the hydraulic cylinders are fixed on the worktable, and the upper surface of the fixing plate is also provided with several fixing units. The unit includes a T-shaped tie rod, a limit pin, a spring screw, a spring, a push-out rod and an ejection hole. The lower part of the T-shaped tie rod penetrates the fixed plate and the movable plate downward, and the lower surface of the lower part of the T-shaped tie rod is fixedly connected to the spring screw. , the spring screw is located under the movable plate, there is a spring between the spring screw and the movable plate, the transverse part of the T-shaped tie rod is penetrated by the limit pin, and the limit pin also penetrates down the fixed plate, and the lower part of the T-shaped tie rod is used for The workpiece is placed, a plurality of ejection via holes penetrating the fixed plate are arranged below the workpiece, and a plurality of ejection rods are fixedly connected on the upper surface of the movable plate corresponding to the position of the ejection via holes.

2 . The composite clamping device according to claim 1 , wherein each fixing unit is provided with four ejection through holes under the workpiece. 3 .

3 . The composite clamping device according to claim 1 , wherein a workpiece groove is provided below the T-shaped tie rod of the fixing unit for placing the workpiece, and the ejection through hole is provided in the workpiece groove. 4 .