CN211387952U

CN211387952U - Armoured shield and machine tool

Info

Publication number: CN211387952U
Application number: CN201921555045.XU
Authority: CN
Inventors: 喻方意
Original assignee: Hebei Shubo Machinery Manufacturing Co ltd
Current assignee: Hebei Shubo Machinery Manufacturing Co ltd
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-09-01
Anticipated expiration: 2029-09-18

Abstract

An armored shield and a machine tool. The utility model discloses set up elastic connection device between each level of the inner support of armour formula guard shield, through adjacent two-stage lateral wall in the inner support of this elastic connection device butt armour formula guard shield, provide the effort of the initial interval between each level of the inner support of maintaining butt armour formula guard shield, realize the linkage between each level of structure in the armour formula guard shield. Therefore, the utility model discloses on transferring the effort that bears by flexible material originally among tensile, the compression process of armour formula guard shield to this elastic connection device, because elastic connection device itself has higher mechanical strength and bigger stress bearing range, the utility model discloses can effectively keep away the wearing and tearing of armour formula guard shield, prolong its life.

Description

Armoured shield and machine tool

Technical Field

The utility model relates to a lathe protector field particularly relates to an armor formula guard shield and lathe.

Background

The armor type shield is a commonly used protection device on a machine tool, is arranged on a telescopic structure of the machine tool, prevents machining waste of the machine tool from entering the interior of the machine tool, and can also prevent operators from being injured due to direct contact with the telescopic structure of the machine tool.

The outer side of the armor type protective cover is provided with a plurality of scales which are sequentially overlapped, and the inner sides of the scales are provided with connecting devices. The connecting device of the existing armor type protective cover comprises supporting plates for supporting and fixing scales and flexible materials such as woven belts, linings and the like connected between the supporting plates. The scales are arranged on the outer side of the supporting plate, and the inner sides of the scales are connected into a whole by the supporting plate and the flexible material.

Because the existing armor type shield is integrally connected through the flexible material, the flexible material is necessarily stressed in the stretching or shrinking process. The useful life and mechanical strength of the flexible material limit the useful life of existing armor shields and the mechanical strength that they can withstand. In particular, the scales of the armor type shield are usually made of metal, the supporting plate inside the armor type shield is usually made of PVC (polyvinyl chloride), and the external structural strength is obviously higher than that of the internal connecting device, so that the internal connecting device is easily abraded in the moving process of the external scales, the service life of the shield is further shortened, and the protection effect of the shield is limited.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to prior art's is not enough, provides an armour formula guard shield and lathe, the utility model discloses can utilize elastic connection device to connect the inside support of armour formula guard shield, provide thrust or the pulling force that help inside support resumes initial interval, guarantee the whole stability of inside support, prolong the life-span of armour formula guard shield. The utility model discloses specifically adopt following technical scheme.

First, in order to achieve the above object, an armor shield is proposed, which includes: flakes; the inner bracket is respectively arranged on the inner side of each scale; and the elastic connecting device is connected between two adjacent internal supports and stretches or compresses in linkage with the scales and the internal supports.

Optionally, the armored shield described above, wherein the elastic connection means comprises: a first connecting piece, one end of which is provided with a first connecting structure, and the other end of which is connected with the side wall of the inner support of the armor shield; a second connector, one end of which is provided with a second connecting structure and the other end of which is connected with the side wall of the other adjacent inner support of the armor shield; the second connecting structure is fixedly connected with the first connecting structure.

Optionally, in the armored shield, the first connection structure is a plug-in groove, and the second connection structure is a protrusion matching with the plug-in groove in size; the insertion groove is parallel to the end edge of the first connecting piece; the protrusion protrudes out of the edge of the end part of the second connecting piece and is parallel to the insertion groove.

Optionally, in the armor shield, a front portion of the first connecting member, which is close to the insertion groove, is provided with a bend away from the second connecting member; the front part of the second connecting piece, which is close to the bulge, is provided with a bend deviating from the first connecting piece; when the protrusions are fixedly inserted into the insertion grooves, the bent front ends of the first connecting piece and the second connecting piece are overlapped and abutted with each other; the bent rear end of the first connecting piece and the bent rear end of the second connecting piece are far away from each other and are respectively abutted against and fixed on the side walls of two adjacent inner supports in the armor type shield.

Optionally, in the armor shield, a distance between the bent rear end of the first connecting piece and the bent rear end of the second connecting piece at least reaches a distance between two adjacent inner supports in a stretched state of the armor shield.

Optionally, in the foregoing armor type shield, a fixing member is further connected between the first connecting structure and the bend and between the second connecting structure and the bend, and the fixing member restricts relative rotation between the first connecting member and the second connecting member.

Optionally, the pair of inner brackets is provided with a pair of elastic connecting devices, and the elastic connecting devices are respectively arranged at two ends of each pair of adjacent inner brackets in the armor shield symmetrically along a line perpendicular to the scale.

Optionally, the end of the bracket is further provided with a wear-resistant block and/or a pulley, and the wear-resistant block and/or the pulley moves along a guide device of a machine tool provided with the armor shield to stretch the armor shield or compress the armor shield.

And simultaneously, the utility model also provides a lathe, it includes foretell armour formula guard shield.

Optionally, in the above machine tool, a sheet metal structure parallel to the guide device is disposed outside the machine tool; and a clamping groove is formed between the wear-resistant block and/or the pulley and the scale, and is clamped with the sheet metal structure to guide the armor type shield and seal the machine tool.

Advantageous effects

The utility model discloses a set up elastic connection device between each level of the inner support of armour formula guard shield, through adjacent two-stage lateral wall in the inner support of this elastic connection device butt armour formula guard shield, provide the effort of the initial interval between each level of the inner support of maintaining butt armour formula guard shield, realize the linkage between each grade structure in the armour formula guard shield. Therefore, the utility model discloses on transferring the effort that bears by flexible material originally among tensile, the compression process of armour formula guard shield to this elastic connection device, because elastic connection device itself has higher mechanical strength and bigger stress bearing range, the utility model discloses can effectively keep away the wearing and tearing of armour formula guard shield, prolong its life.

Further, the utility model discloses well elastic connection device's two connecting pieces adopt respectively that elastic sheetmetal passes through the fixed shaping of mode of pegging graft. The splicing structure is symmetrical by the long axis of the integral elastic connecting device, and the stress of the connecting part between the two connecting pieces can be ensured to be uniform. The cooperation sets up the mounting between the grafting structure is turned over and is buckled, the utility model discloses in connect between two connecting pieces position overlap each other, mutual butt and do not have relative rotation, therefore can effectively avoid the unstable problem of connection that arbitrary connecting piece unilateral atress inequality leads to, avoid elastic connection device to lose efficacy at the tensile or compressed in-process atress of armor formula guard shield.

And simultaneously, the utility model discloses the grafting structure that adopts, it can realize the self-locking between two connecting pieces. The interval between the adjacent two-stage lateral wall is less than the interval between the distal end that the connecting piece deviates from each other in the inner support of armour formula guard shield, and two connecting pieces are pasted tightly each other by the lateral wall butt of inner support, make the utility model discloses tie point is not atress throughout the tensile or compressed overall process of armour formula guard shield between two connecting pieces. Therefore, the utility model discloses an inside support especially sets up the elastic connection device between them, all keeps the surplus of deformation in the overall process of this armour formula guard shield extension or shrink, and the overall process at extension or compression is atress very little, therefore, its life of extension that can be further.

The utility model discloses the scale intensity that well set up armour formula guard shield is less than the inner support, and the intensity that sets up the inner support is less than the elastic connection device that sets up between them, consequently can inwards draw together the outside scale at all levels through the inside structure of armour formula guard shield, makes to laminate each other between the scale at all levels more inseparabler, realizes the outside sealed of guard shield, avoids beating each other between the scale at the removal in-process.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the invention.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, together with the embodiments of the invention for the purpose of explanation and not limitation of the invention. In the drawings:

fig. 1 is a schematic view of the assembly process of the elastic connection device for an armour shield of the present invention;

FIG. 2 is a schematic view of the internal structure of an armor shield incorporating a resilient connection device according to the present invention;

fig. 3 is a side view of the armor shield of the present invention;

fig. 4 is a perspective view of the armor shield of the present invention;

FIG. 5 is a schematic view of a machine tool with an armored shroud of the present invention installed thereon;

FIG. 6 is a schematic view of the armor shield of the present invention mounted on a machine tool;

figure 7 is a side view of the armor shield of the present invention installed on a machine tool.

In the drawings, 1 denotes a first connecting member; 11 denotes a first connecting structure; 12 denotes a first bracket connection point; 13 denotes a first anchor attachment point; 2 denotes a second connecting member; 21 denotes a second connecting structure; 22 denotes a second bracket attachment point; 23 denotes a second attachment point; 3 denotes a fixing member; 4 represents a scale; 41 denotes an inner holder; 42 denotes a screw; 43 denotes a tablet; 51 denotes a card slot; 52 denotes a wear-resistant block; 53 denotes a pulley; 6 denotes a machine tool; 61 denotes a lower rail; 62 denotes an upper sheet metal shutter; 63 denotes an upper metal plate auxiliary rail; 64 denotes a lower sheet metal baffle; 65 denotes a machine tool housing metal plate; 7 denotes a machine casting; and 8 denotes a slider.

Detailed Description

In order to make the purpose and technical solution of the embodiments of the present invention clearer, the following description will clearly and completely describe the technical solution of the embodiments of the present invention by combining the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The meaning of "and/or" in the present invention means that they exist individually or both at the same time.

The meaning of "inside and outside" in the present invention means that the direction from the scale to the elastic connecting device between the inner supports is inside, otherwise is outside, relative to the armor type shield itself; and not to the specific limitations of the device mechanism of the present invention.

The meaning of "front and back" in the present invention means that the direction close to the connecting structure is front and the direction close to the connecting point of the bracket is back, relative to the elastic connecting device itself; and not to the specific limitations of the device mechanism of the present invention.

The term "connected" as used herein may mean either a direct connection between elements or an indirect connection between elements through other elements.

The armor type shield is mainly used for covering the surface of a telescopic structure of a machine tool and providing protection. Traditional armour formula guard shield includes the scale of setting externally, perpendicular to scale setting inside backup pad and the flexible material of the backup pad that connects corresponding at each level scale. The supporting plates or the scales of the armor type shield are pulled or pushed by a telescopic structure of a machine tool, in the process, the flexible materials are matched with corresponding bending or stretching of the supporting plates at all levels to stretch, the limitation of the range of the moving stroke between the scales is realized, and the phenomenon that the scales are loosened or exposed out of the internal structure of the shield due to excessive stretching is avoided. However, the flexible material has insufficient mechanical strength and is easily broken at its bent portion to cause the entire shield structure to fail.

For the life who increases the guard shield, the utility model provides a replace brand-new armor formula guard shield of above-mentioned structure.

Referring to fig. 2, the present invention provides an armor type shield, which has an inner support 41 attached to the inward bent side wall of each scale 4. Or the inner bracket can be arranged to be bent inwards from the inner side of the scale to support the scale. The inner support may be made of metal, and it is generally preferable to use a metal sheet having higher strength and larger thickness than the scale 4, for example, a stainless steel sheet. The side walls of the inner brackets 41 of two adjacent scales 4 can be connected through an elastic connecting device with elasticity to realize linkage.

Referring to fig. 1, in one implementation, the elastic connection device includes:

a first connecting member 1 having one end provided with a first connecting structure 11 and the other end connected to a side wall of an inner support of the armor shield;

a second connector 2, one end of which is provided with a second connecting structure 21 and the other end of which is connected with the side wall of another adjacent inner support of the armor shield;

the second connecting structure 21 is fixedly connected with the first connecting structure 11. The ends of the first connecting piece 1, the second connecting piece 2 and the inner support are mutually deviated, and elastic driving force for restoring the inner support to the initial distance is provided for the inner support.

In the elastic connection device, when the first connection member and the second connection member are connected, the ends of the first connection member 1 and the second connection member 2, which are used for connecting the inner bracket 41 of the armor shield, are deviated from each other. The initial distance between the two ends of the elastic connecting device is set to exceed the limit distance stretched between two adjacent scales 4 in the armor shield under the condition that the elastic connecting device is not influenced by external force, so that the elastic driving force for restoring the initial distance can be provided for the inner support.

When the elastic connecting device is installed between the inner supports 41 of the armor type shield, the far ends of the first connecting piece and the second connecting piece, which deviate from each other, are respectively provided with a screw hole shown in fig. 1 as a first support connecting point 12 and a second support connecting point 22, and the first connecting piece and the second connecting piece are respectively fixed between the side walls of the inner supports 41 connected with the adjacent two-stage scales 4 in the armor type shield through screws 42, bolts or clamping pieces, puncture structures and the like. Because the distance between the inner support is less than the initial distance of elastic connection device, consequently, the distal end that first connecting piece and second connecting piece deviate from each other all do not the lateral wall of the adjacent inner support of butt, provide the effort of maintaining at initial condition to inner support and the scale that connects.

In order to avoid the connection failure of the first and second bracket connection points, the pressing piece 43 may be padded between the screw 42 and the first bracket connection point 12 or/and the second bracket connection point 22. The screw 42 presses the pressing plate 43, and the pressing plate plane uniformly applies the abutting force to the two first bracket connecting points 12 and the two second bracket connecting points 22 at the far ends of the first connecting piece 1 and the second connecting piece 2, so that the pressing plate is stably and reliably fixed on the side wall of the inner bracket.

From this, elastic connection device can be respectively stable assembly between the inner support 41 of the scale 4 of each level of armour formula guard shield, realizes the linkage at each level of inner support. Under elastic connection device's effect, the utility model discloses an armor formula guard shield is by the extending structure drive of lathe and compress or stretch the distance between the scale. At this time, the relative displacement between the scales 4 drives the inner bracket 41 at the bending side to drive the elastic connecting devices connected between the inner brackets to compress or stretch. Since the elastic attachment means is already in a slightly compressed state in the initial assembled state, further compression or stretching between the scales does not exceed the range of stresses which they can withstand. The elastic connecting device is elastically deformed under the action of the internal support, and transmits strain force to the internal supports at the front and rear stages to drive the internal supports to have potential energy for recovering the initial state. In case the drive power of lathe extending structure is relieved, the utility model discloses a scale at different levels can receive its inside elastic connection device's drive and the recovery of linkage to initial condition in the armor formula guard shield.

For current flexible material's passive atress, the utility model discloses an elastic connection device can initiatively order about the synchronous linkage of scale at different levels of armour formula guard shield. Because the utility model discloses well elastic connection device's mechanical strength and whole metal shrapnel thickness all are greater than its inside support of connecting to be greater than outside scale, form the structure of strong outer weak in the interior, the utility model discloses an its internal connection system of armor formula guard shield can not become invalid because of the wearing and tearing of scale. Therefore, the utility model discloses can effectively guarantee the complete difficult inefficacy fracture of guard shield overall structure, further prolong the life of whole guard shield structure.

Referring to fig. 2, in the elastic connection device, the first connection structure 11 may be configured as a plug-in slot, and the second connection structure 21 may be correspondingly configured as a protrusion matching the size of the plug-in slot. The two are inserted to realize self-locking, and the installation is convenient.

Considering the stress condition between the inverted connection structures, the insertion groove can be further arranged to be parallel to the end edge of the first connecting piece 1; the protrusions are arranged to protrude from the edge of the end part of the second connecting piece 2 and are parallel to the insertion groove. So as to avoid the relative rotation of the plugging structure to cause the mutual separation of the structures and the loss of the connection function.

In a more specific implementation manner, the insertion groove is arranged in the middle of the end of the first connecting piece 1, and the protrusion protrudes out of the middle of the edge of the end of the second connecting piece 2, both of which are in a form symmetrical to the long axis of the integral elastic connecting device. Therefore, the instability caused by single-side insertion can be further avoided, and the two insertion structures are prevented from being separated from failure due to relative rotation at the single-side insertion position. Under the state that the protrusions are inserted into the insertion grooves, the front ends of the first connecting pieces 1 and the front ends of the second connecting pieces 2 are overlapped and abutted with each other, the rear ends of the first connecting pieces are far away from each other and abutted with and fixed to two adjacent side walls in the inner support of the armor type shield respectively, and linkage between all levels of the inner support is achieved.

In order to ensure that the elastic connecting device has enough elasticity to support the internal support to automatically restore to the initial spacing at each level, in an implementation mode, the utility model further comprises a bending part which deviates from the second connecting piece 2 and is arranged at the position, close to the splicing groove, in the first connecting piece 1; and a bending part departing from the first connecting piece 1 is arranged at a position, close to the bulge, in the second connecting piece 2. The connecting piece of the rear end of buckling deviates from each other, and the connecting piece of the front end of buckling is mutually abutted, inserted and fixed. The bending part is used as a fulcrum. When the armor type shield stretches towards two sides, the distance between the connecting pieces at the bent rear end is increased, but the stretching limit size of the shield cannot reach the initial distance between the two ends under the action that the elastic connecting device is not subjected to external force all the time, so that the two connecting pieces still keep a compressed state. And under the state that two connecting pieces are compressed, the position of buckling is as the fulcrum, because the effect of this angle of buckling and the fixed action of buckling front end grafting structure to two connecting piece tip, 1 front end of first connecting piece with 2 front ends of second connecting piece overlap each other all the time and mutual butt. The splicing structure is practically not subjected to the external force applied by the shield structure in the whole process of compressing or stretching the armor type shield. That is to say, the utility model discloses mounting

tie point

13, 23 is not atress throughout the whole process of armour formula guard extension or compression between two connecting pieces all the time. Therefore, the utility model discloses an inside support especially sets up the elastic connection device between them, all keeps the surplus of deformation in the overall process of this armour formula guard shield extension or shrink, and the overall process at extension or compression is atress very little, therefore, its life of extension that can be further.

However, under comparatively preferred mode, for avoiding between two connecting pieces mounting

tie point

13, 23 relative rotation and lead to grafting structure pine to take off and influence elastic connection device stable, the utility model discloses still can further first connecting structure 11 extremely between buckling second connecting structure 21 extremely be provided with mounting 3 between buckling, through the front end of two connecting pieces is connected to mounting 3, the restriction first connecting piece 1 with relative rotation between the second connecting piece 2 to guarantee that the grafting structure can not rotatory pine take off, guarantee that elastic connection device can not become invalid to the effort of inner support.

In a simple implementation manner, the fixing member 3 may be provided in the form of two or more screws, buckles, piercing structures, etc. arranged in parallel to the insertion groove. It is only responsible for connecting two connecting pieces, avoids relative rotation between the connecting piece and need not bear the extrusion or the tensile strength of whole armour formula guard shield flexible process. Therefore, the utility model discloses the connecting piece structure that adopts also can effectively protect this mounting 3, avoids its atress and the pine takes off inefficacy.

Further, as shown in fig. 3 and 4, the elastic connection means are respectively arranged symmetrically along a line perpendicular to the scales at the two ends of each pair of adjacent internal supports of the armor shield. With particular reference to fig. 3, the bracket attachment points 12, 22 of each resilient attachment means are all arranged at equal distances from the opposite scales, and are likewise arranged at equal distances from the respective inner bracket ends. Like this, the mutual end to end overlap joint of outside scale, and its inside elastic connection device aligns along the dotted line of figure 3, because elastic connection device mechanical strength is higher than outside scale, the scale can be by slight inside tractive deformation owing to inside elastic connection device for more inseparable laminating between the scale of at different levels realizes sealed between the scale. Therefore, the utility model provides an armour formula guard shield is at tensile or shrink removal in-process, and the scale on its surface can be close a linear arrangement by inside support and elastic connection device tractive all the time, and it is inseparable to laminate each other between the scale, links between at different levels, only has the friction along the moving direction between the scale in the removal process, and the surface laminating degree is high. Therefore, the utility model discloses can solve between the armor formula guard shield that current flexible material connects the problem of patting each other, perk.

In order to ensure that the scales of the armor type shield move along the straight line, the present invention can further set a wear-resistant block 52 and/or a pulley 53 at the end of the inner support in a manner shown in fig. 4 and 7, or further form a slot 51 between the wear-resistant block 52 and/or the pulley 53 and the scales.

The grinding blocks 52 and/or the pulleys 53 move along guides of the machine tool on which the armour shield is mounted, stretching the armour shield or compressing it. And the clamping groove 51 can further guide the clamping of the guide structure to prevent the armor type shield from being bent in the compression process.

In one implementation, the armor shield of the present invention may be placed on the machine tool 6 structure shown in fig. 5 in the manner shown in fig. 6. The clamping groove 51 is clamped with a sheet metal structure on the side of a guide device of the machine tool to guide the armor type shield and seal the machine tool, and the wear-resistant block 52 and/or the pulley 53 move along the guide device of the telescopic structure of the machine tool so as to ensure that the armor type shield is stretched or compressed in a linear mode all the time, lateral oblique acting force cannot be generated on an internal structure, and the internal structure is stable and does not rotate relatively.

Taking the structures shown in fig. 4 and 5 as examples, the upper and lower ends of each stage of inner supports of the armor-type shield are respectively provided with wear-resistant sliding blocks 52 and pulleys 53 at intervals, and equal gaps are reserved between the wear-resistant sliding blocks and the pulleys 53 and the inner surfaces of the scales to form clamping grooves 51. The armored shield is mounted on a machine tool 6 shown in fig. 5. The wear-resistant block 52 and/or the pulley 53 at the lower end of the wear-resistant block is abutted to the upper end face of the lower rail 61, the clamping groove 51 at the lower end of the wear-resistant block is clamped to the upper end face of a lower sheet metal baffle 64 arranged on the outer side of the lower rail 61 in parallel to the scales, the wear-resistant block 52 and/or the pulley 53 at the upper end of the wear-resistant block is abutted to the upper end face of the inner wall of the upper sheet metal auxiliary rail 63, the upper ends of the scales are shielded and sealed by the upper sheet metal baffle 62 on the outer side, and the clamping groove 51 at the upper end of the wear-. Therefore, the whole armor shield can be pushed by the machine table casting 7 to move synchronously with the slide block 8 arranged on the lower rail 61, and can be stretched or compressed along the lower rail 61 along the left-right direction of the figure, so that the internal structure of the machine tool is sealed.

The utility model discloses a grafting structure of self-locking formula utilizes this structural connection to each have sufficient elastic connecting piece, realizes the connection and the linkage to the inner support of scale. The utility model discloses a connect and linkage structure design benefit, can avoid the inner structure directly to receive the lathe extending structure drive and the atress is damaged in armor formula guard shield concertina movement's whole stroke within range, can effectively prolong the life of armor formula guard shield. The internal structure of the device is assembled only by bolts, screws or insertion modes, and the device is simple to assemble and disassemble and easy to maintain.

The above description is only for the embodiments of the present invention, and the description is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes and modifications can be made, which all fall within the scope of the present invention.

Claims

1. An armored shroud, comprising:

scales (4);

the inner brackets (41) are respectively arranged on the inner side of each scale (4);

and the elastic connecting device is connected between two adjacent inner brackets (41) and is stretched or compressed with the scales and the inner brackets in a linkage manner.

2. The armor shield of claim 1, wherein the resilient connection means comprises:

a first connection piece (1) provided with a first connection structure (11) at one end and connected to a side wall of an inner support of the armor shield at the other end;

a second connector (2) provided with a second connecting structure (21) at one end and connected to the side wall of another adjacent inner support of the armour shield at the other end;

the second connecting structure (21) is fixedly connected with the first connecting structure (11).

3. Armor shield according to claim 2, wherein the first connection structure (11) is a socket and the second connection structure (21) is a projection of a size to fit the socket; the plug groove is parallel to the end edge of the first connecting piece (1); the bulge protrudes out of the end edge of the second connecting piece (2) and is parallel to the insertion groove.

4. Armoured shield according to claim 3, characterized in that the front of the first connector (1) close to the plug slot is provided with a bend facing away from the second connector (2); the front part of the second connecting piece (2) close to the bulge is provided with a bend deviating from the first connecting piece (1); when the protrusions are fixedly inserted into the insertion grooves, the bent front ends of the first connecting piece (1) and the second connecting piece (2) are overlapped and mutually abutted; the bent rear ends of the first connecting pieces (1) and the bent rear ends of the second connecting pieces (2) are far away from each other and are respectively abutted against and fixed on the side walls of two adjacent inner supports in the armor type shield.

5. Armor shield according to claim 4, in which the spacing between the bent rear ends of the first connecting members (1) and the bent rear ends of the second connecting members (2) is at least as great as the spacing between two adjacent internal supports in the stretched state of the armor shield.

6. Armoured shield according to claim 4, characterized in that a fixing member (3) is further connected between said first connection structure (11) to said bend and between said second connection structure (21) to said bend, said fixing member (3) limiting the relative rotation between said first connection member (1) and said second connection member (2).

7. Armor shield according to claim 6 in which the resilient connecting means are symmetrically arranged at the ends of each pair of adjacent inner supports in the armor shield along a line perpendicular to the scale.

8. Armor shield according to claim 7, wherein the ends of the support are further provided with wear blocks (52) and/or pulleys (53), the wear blocks (52) and/or pulleys (53) moving along guides of a machine tool on which the armor shield is provided, stretching the armor shield or compressing the armor shield.

9. A machine tool comprising an armored shroud as claimed in any one of claims 1 to 8.

10. Machine tool according to claim 9, characterised in that the outer side of the machine tool is provided with a sheet metal structure parallel to the guides in the machine tool;

the end part of the inner support is further provided with a wear-resisting block (52) and/or a pulley (53), a clamping groove (51) is formed between the wear-resisting block (52) and/or the pulley (53) and the scale, and the clamping groove (51) is clamped with a sheet metal structure to guide the armor type shield and seal the machine tool.