CN206111978U - Shock attenuation lead screw subassembly - Google Patents

Abstract

The utility model relates to a transmission precision device, concretely relates to shock attenuation lead screw subassembly, including the lead screw, the lead screw both ends overlap respectively be equipped with the protection pullover, protect pullover material hardness to be lighter than lead screw and slider, at the overhead connection structure who is used for its rigidity that still is equipped with of protective sheath, the overhead fenestrate aperture of lead screw of protective sheath is greater than the lead screw diameter. This lead screw subassembly is pullover through the soft protection that the both ends at the lead screw set up the anticollision to to protect pullover and both ends end cover fixed, reduce the lead screw operation vibrations, break the slider of module and subsidiary operation parts when preventing unexpected operation, guarantee the operation of the long -term high accuracy of module, practice thrift use cost.

Description

A kind of damping screw component

Technical field

This utility model is related to a kind of accurate transmission mechanism, particularly a kind of damping screw component.

Background technology

Straight line module currently generally applied to measurement, laser welding, cut, glue spreader, flush coater, puncher, The fields such as point gum machine, miniature numerical control lathe, carving and milling machine, sample draft machine, cutting, transfer machine, classifier, testing machine and applicable education Institute, is high-accuracy actuating device, and straight line module ensure that the running precision of these precision instruments.Just it is currently being widely used straight Line module can be divided into 2 types：Synchronous banding pattern and screw rod type, wherein screw rod type straight line module are applied to the higher field of required precision Close, for ensureing the accuracy that instrument runs.

Each parts in screw rod type straight line module are precision-fit, therefore to the required precision of total It is higher, for how to realize each parts with the key for synthesizing module design.New double lead as shown in figure 1, a kind of In rail straight line module, including screw mandrel 1 and module section bar 2, screw mandrel is encased in module section bar, be additionally provided with module section bar for Space and the slide rail for slide block slip of slide block and its operation are put into, at the two ends of module section bar screw mandrel end cap 4 is respectively With motor connection box 3, such straight line module has the characteristics of slide block is stable, precision is high, can be by slide block and slide rail Contact surface is encapsulated in module section bar, in case being subject to laying dust and other debris interference, it is ensured that module elaboration.

Used as the moving component of whole device, screw mandrel and slide block are main drive disk assembly, in module running, such as The running precision of what long-term holding screw mandrel, it is ensured that slide block and its subsidiary operation part are not damaged by becoming crucial, therefore, having must Targeted design is carried out to the structure of screw component, it is ensured that module high accuracy operation for a long time, saving use cost.

Utility model content

Goal of the invention of the present utility model is：In for high-precision pair of guide rail straight line module, for how protecting for a long time Hold the running precision of screw mandrel, it is ensured that a kind of problem that slide block and its subsidiary operation part are not damaged by, there is provided damping screw mandrel group Part, the screw component is consolidated protection pullover with two ends end cap by arranging the soft protection sheath head of anticollision at the two ends of screw mandrel It is fixed, reduce the vibrations of screw mandrel operation, prevent to break the slide block and its subsidiary operation part of module during unexpected operation, it is ensured that Module high accuracy operation for a long time, saving use cost.

To achieve these goals, the technical solution adopted in the utility model is：

A kind of damping screw component, including screw mandrel, the screw mandrel two ends are arranged with respectively protection pullover, the protection pullover Material hardness less than screw mandrel and slide block, the attachment structure for its position to be fixed, the guarantor are additionally provided with protection pullover The aperture of the screw mandrel perforation on sheath head is more than screw mandrel diameter.

The screw component will protect pullover and screw mandrel two by arranging the soft protection sheath head of anticollision at the two ends of screw mandrel The end cap at end is fixed, and is reduced the vibrations of screw mandrel operation and is reduced the screw mandrel damage that screw mandrel shattering zone comes, and unexpected operation shape is occurring During condition, protection pullover plays cushioning effect, prevents from breaking the slide block of module and its subsidiary operation part, it is ensured that module is high for a long time Precision operation, saving use cost.

Used as preferred version of the present utility model, the protection pullover is made up of tendon Bovis seu Bubali pad or nylon rod.Using tendon Bovis seu Bubali pad Or nylon rod makes protection pullover, durable in use, good toughness, tear resistance are strong and are unlikely to deform, and are adapted to actually used demand.

Used as preferred version of the present utility model, described screw mandrel one end is used to install screw mandrel end cap, and the other end is used to install Driving means connect end cap, and the protection pullover is arranged between screw mandrel end cap and driving means connection end cap.

As preferred version of the present utility model, be provided with the protection pullover for screw mandrel end cap or driving means The connecting hole of connection end cap connection.Corresponding to the attachment structure for fixing its position arranged on protection pullover, at screw mandrel two ends End cap and protection pullover on be correspondingly arranged connecting hole, by installation connecting element realize the two be fixedly connected, stably protect pullover Position, and then to screw mandrel and its operation part protect.

As preferred version of the present utility model, in the two ends correspondence screw mandrel end cap and driving means connection end cap point of screw mandrel It is not provided with bearing limited step.Bearing is used for support screw and is adapted to screw mandrel rotation, and screw mandrel and axle are correspondingly arranged on end cap The installing hole for holding, arranges bearing limited step and limits position of bearings, it is ensured that stablize and assembly operating the position of bearing on screw mandrel Safety.

Used as preferred version of the present utility model, the screw mandrel is also extended with for installing elastic shaft coupling toward driving means end The screw mandrel extension of device, is provided with shaft coupling limited step on screw mandrel extension.Screw mandrel is extended at the driving means end of screw mandrel Extension, for installing yielding coupling, sets up the yielding coupling of cushioning effect, plays vibration damping and improves shafting dynamic property Effect, reduce screw mandrel backhaul gap, it is ensured that the running precision of straight line module.

Used as preferred version of the present utility model, the driving means connection end cap is box body structure, one end and protective case Head contact, the other end is used to be connected with driving means, and centre is the box body structure for placing yielding coupling.By driving means Connection end cap is set to box body structure, and yielding coupling is fitted in box body structure, it is ensured that the use quality of yielding coupling And safety.

In sum, as a result of above-mentioned technical proposal, the beneficial effects of the utility model are：

1st, the screw component is by arranging the soft protection sheath head of anticollision at the two ends of screw mandrel, and will protect pullover and screw mandrel The end cap at two ends is fixed, and is reduced the vibrations of screw mandrel operation and is reduced the screw mandrel damage that screw mandrel shattering zone comes, and unexpected operation is occurring During situation, protection pullover plays cushioning effect, prevents from breaking the slide block of module and its subsidiary operation part, it is ensured that module is long-term High accuracy operation, saving use cost；

2nd, the two ends correspondence screw mandrel end cap and driving means connection end cap in screw mandrel is respectively equipped with bearing limited step, bearing For support screw and be adapted to screw mandrel rotation, the installing hole of screw mandrel and bearing is correspondingly arranged on end cap, on screw mandrel arrange Bearing limited step limits position of bearings, it is ensured that stablize and assembly operating safety the position of bearing；

3rd, screw mandrel extension is extended at the driving means end of screw mandrel, for installing yielding coupling, sets up cushioning effect Yielding coupling, play a part of vibration damping and improve shafting dynamic property, reduce screw mandrel backhaul gap, it is ensured that straight line module Running precision.

Description of the drawings

Fig. 1 is the structural representation of new module.

It is screw component and module end cap scheme of installation in embodiment that Fig. 2 is.

Fig. 3 is the structural representation of screw component in embodiment.

Fig. 4 is the structural representation of screw mandrel in Fig. 3.

Labelling in figure：1- screw mandrels, 101- clutch shaft bearing limited steps, 102- shaft coupling limited steps, 103- second bearings Limited step, 2- module section bars, 3- motor connection boxes, 4- screw mandrel end caps, 5- protection pullovers, 6- yielding couplings.

Specific embodiment

Below in conjunction with the accompanying drawings, this utility model is described in detail.

In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and enforcement Example, is further elaborated to this utility model.It should be appreciated that specific embodiment described herein is only to explain this Utility model, is not used to limit this utility model.

Embodiment 1

As shown in Figures 1 to 4, the damping screw component of the present embodiment is used in a kind of new double guide rail straight line modules, The module includes the module section bar 2 of box like structure, and screw component is directly loaded in module section bar, and is also set in module section bar The slide rail for having the space for being put into slide block and its operation and sliding for slide block, at the two ends of module section bar silk is respectively Stem cover 4 and driving means connection end cap；The straight line module has the characteristics of slide block is stable, precision is high, can be by slide block It is encapsulated in module section bar with the contact surface of slide rail, in case being subject to laying dust and other debris interference, it is ensured that module elaboration, this reality In applying example, driving means are motor, and driving means connection end cap is the motor connection box 3 of box body structure.

Further, the screw component of the present embodiment includes screw mandrel 1, and the two ends of the screw mandrel 1 are arranged with respectively protection pullover 5, the material hardness of the protection pullover 5 is additionally provided with for its position to be fixed less than screw mandrel and slide block on protection pullover 5 Attachment structure, the aperture of the screw mandrel perforation on the protection pullover 5 is more than screw mandrel diameter.

Specifically, the protection pullover 5 is made up of tendon Bovis seu Bubali pad or nylon rod.Protective case is made using tendon Bovis seu Bubali pad or nylon rod Head, durable in use, good toughness, tear resistance are strong and are unlikely to deform, and are adapted to actually used demand.

Further, the one end of the screw mandrel 1 is used to install screw mandrel end cap 4, and the other end is used for motor connection box 3, the guarantor Sheath head 5 is arranged between screw mandrel end cap 4 and motor connection box 3.

Specifically, the connecting hole for being connected with screw mandrel end cap 4 or motor connection box 3 is provided with the protection pullover 5. Corresponding to the attachment structure for fixing its position arranged on protection pullover, the correspondence on the end cap and protection pullover at screw mandrel two ends Connecting hole is set, realizes that the two is fixedly connected by installation connecting element, stably protect the position of pullover, and then to screw mandrel and its fortune Row part is protected.

Further, to be respectively equipped with second bearing spacing for the two ends correspondences screw mandrel end cap 4 and motor connection box 3 in screw mandrel 1 Step 103 and clutch shaft bearing limited step 101.Bearing is used for support screw and is adapted to screw mandrel rotation, and correspondence sets on end cap The installing hole of screw mandrel and bearing is put, bearing limited step is set on screw mandrel and is limited position of bearings, it is ensured that stablize the position of bearing And assembly operating safety.

Further, the screw mandrel 1 is also extended with screw mandrel extension for installing yielding coupling 6 toward motor side, Shaft coupling limited step 102 is provided with screw mandrel extension.Screw mandrel extension is extended at the driving means end of screw mandrel, for pacifying Dress yielding coupling, sets up the yielding coupling of cushioning effect, plays a part of vibration damping and improves shafting dynamic property, reduces silk The backhaul gap of bar, it is ensured that the running precision of straight line module.

Specifically, as depicted in figs. 1 and 2, the motor connection box 3 is box body structure, and its one end connects with protection pullover 5 Touch, the other end is used for and motor connection, and centre is the box body structure for placing yielding coupling 6.By driving means connection end Lid is set to box body structure, and yielding coupling is fitted in box body structure, it is ensured that the use quality and safety of yielding coupling.

To sum up, the screw component of the present embodiment coordinates new double guide rail straight line module features, by the two ends of screw mandrel Arrange anticollision soft protection sheath head, and will protection pullover fix with the end cap at screw mandrel two ends, reduce screw mandrel run vibrations and The screw mandrel damage that screw mandrel shattering zone comes is reduced, when there is unexpected operation conditions, protection pullover plays cushioning effect, prevents from breaking The slide block of module and its subsidiary operation part, it is ensured that module high accuracy operation for a long time, saving use cost.

Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit this utility model Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in this utility model Protection domain within.

Claims (7)

1. a kind of damping screw component, including screw mandrel, it is characterised in that the screw mandrel two ends are arranged with respectively protection pullover, institute The material hardness of protection pullover is stated less than screw mandrel and slide block, the connection knot for its position to be fixed is additionally provided with protection pullover Structure, the aperture of the screw mandrel perforation on the protection pullover is more than screw mandrel diameter.

2. damping screw component according to claim 1, it is characterised in that the protection pullover is by tendon Bovis seu Bubali pad or nylon rod Make.

3. damping screw component according to claim 1, it is characterised in that described screw mandrel one end is used to install screw mandrel end Lid, the other end is used to install driving means connection end cap, and the protection pullover is arranged on screw mandrel end cap and driving means connection end Between lid.

4. the damping screw component according to one of claim 1-3, it is characterised in that be provided with use on the protection pullover In the connecting hole for being connected end cap connection with screw mandrel end cap or driving means.

5. damping screw component according to claim 4, it is characterised in that the two ends of screw mandrel corresponding to screw mandrel end cap and Driving means connection end cap is respectively equipped with limited step.

6. damping screw component according to claim 5, it is characterised in that the screw mandrel is also extended with toward driving means end For installing the screw mandrel extension of yielding coupling, shaft coupling limited step is provided with screw mandrel extension.

7. damping screw component according to claim 6, it is characterised in that the driving means connection end cap is box body knot Structure, one end contacts with protection pullover, and the other end is used to be connected with driving means, and centre is the box body for placing yielding coupling Structure.