CN110449979B - Connecting device, armor formula guard shield and lathe - Google Patents
Connecting device, armor formula guard shield and lathe Download PDFInfo
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- CN110449979B CN110449979B CN201910883170.1A CN201910883170A CN110449979B CN 110449979 B CN110449979 B CN 110449979B CN 201910883170 A CN201910883170 A CN 201910883170A CN 110449979 B CN110449979 B CN 110449979B
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- 230000001681 protective effect Effects 0.000 claims abstract description 35
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 14
- 239000000463 material Substances 0.000 abstract description 13
- 230000002035 prolonged effect Effects 0.000 abstract description 7
- 238000005452 bending Methods 0.000 description 11
- 230000009471 action Effects 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/08—Protective coverings for parts of machine tools; Splash guards
- B23Q11/0825—Relatively slidable coverings, e.g. telescopic
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Prostheses (AREA)
Abstract
A connecting device, an armor type shield and a machine tool. According to the invention, the connecting device is arranged between all levels of the inner support of the armor type shield, the connecting device is abutted against the adjacent two-level side walls in the inner support of the armor type shield, and the acting force for maintaining the initial spacing between all levels of the inner support of the armor type shield is provided, so that the linkage between all levels of structures in the armor type shield is realized. Therefore, the invention transfers the acting force born by the flexible material to the connecting device in the stretching and compressing processes of the armor type protective cover, and the connecting device has higher mechanical strength and larger stress bearing range, so that the wear of the armor type protective cover can be effectively avoided, and the service life of the armor type protective cover is prolonged.
Description
Technical Field
The invention relates to the field of machine tool protection devices, in particular to a connecting device, an armor type shield and a machine tool.
Background
The armor formula guard shield is a protection device commonly used on the lathe, and it sets up on the extending structure of lathe, prevents that lathe processing waste material from getting into inside the lathe, also can avoid operating personnel direct and lathe extending structure contact and be injured.
The outer side of the armor type protective cover is provided with a plurality of stages of mutually sequentially overlapped scales, and the inner side of each scale is provided with a connecting device. The prior armor type protective cover, the connecting device comprises supporting plates for supporting and fixing each scale, and flexible materials such as woven belts, inner liners and the like connected between the supporting plates. The scale is arranged on the outer side of the supporting plate, and the inner side of the scale is connected into a whole by the supporting plate and the flexible material.
Because the whole body of the existing armor type protective cover is connected through flexible materials, the flexible materials are 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 protective cover are usually made of metal materials, the supporting plates inside the armor type protective cover are usually made of PVC materials, and the external structural strength is obviously higher than that of the internal connecting device, so that the internal connecting device is easily worn in the process of external scale movement, the service life of the protective cover is further shortened, and the protective effect of the protective cover is limited.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the connecting device, the armor type shield and the machine tool, wherein the connecting device can be abutted between the inner supports of the armor type shield, so that the pushing force or the pulling force for helping the inner supports to recover and deform is provided, the integral stability of the inner supports is ensured, and the service life of the armor type shield is prolonged. The invention adopts the following technical scheme.
First, to achieve the above object, there is provided a connecting device for an armor type shield, comprising: one end of the first connecting piece is provided with a first connecting structure, and the other end of the first connecting piece is connected with the side wall of the inner bracket of the armor type shield; one end of the second connecting piece is provided with a second connecting structure, and the other end of the second connecting piece is connected with the side wall of the other adjacent internal bracket of the armor type shield; the second connecting structure is fixedly connected with the first connecting structure.
Optionally, in the above connection device, the first connection piece and the second connection piece are connected to the end portions of the inner support of the armor type shield, and the end portions are away from each other.
Optionally, in the above connection device, the first connection structure is a socket slot, and the second connection structure is a protrusion matching the socket slot.
Optionally, the above connection device, wherein the insertion groove is parallel to an end edge of the first connector; the protrusion protrudes out of the end edge of the second connecting piece and is parallel to the inserting groove.
Optionally, in the above connection device, the insertion groove is disposed at an end middle position of the first connection member, and the protrusion protrudes from an end edge middle position of the second connection member; under the protruding grafting entering in the grafting groove the state, the one end of first connecting piece with the one end of second connecting piece overlaps and butt each other, the other end of first connecting piece with the other end of second connecting piece keeps away from each other and respectively butt and fix adjacent both sides wall in the inner support of armor formula guard shield.
Optionally, in the above connection device, a position in the first connection element near the first connection structure is provided with a bend away from the second connection element; and a bending part deviating from the first connecting piece is arranged at a position, close to the second connecting structure, in the second connecting piece.
Optionally, in the above connection device, a fixing member is further connected between the first connection structure and the bend, and between the second connection structure and the bend, and the fixing member limits relative rotation between the first connection member and the second connection member.
Optionally, the above connection device, wherein the fixing member includes at least two arranged parallel to the insertion groove.
Meanwhile, the invention also provides an armor type shield which comprises any connecting device.
Based on the structure, the invention further provides a machine tool which comprises the armor type protective cover.
Advantageous effects
According to the invention, the connecting device is arranged between all levels of the inner support of the armor type shield, the connecting device is abutted against the adjacent two-level side walls in the inner support of the armor type shield, and acting force for maintaining initial spacing between all levels of the inner support of the armor type shield is provided, so that linkage among all levels of structures in the armor type shield is realized. Therefore, the invention transfers the acting force born by the flexible material to the connecting device in the stretching and compressing processes of the armor type protective cover, and the connecting device has higher mechanical strength and larger stress bearing range, so that the wear of the armor type protective cover can be effectively avoided, and the service life of the armor type protective cover is prolonged.
Furthermore, the two connecting pieces of the connecting device are respectively fixed and formed by adopting elastic metal sheets in a plugging manner. The splicing structure is symmetrical with the long axis of the integral connecting device, and can ensure that the connecting part between two connecting pieces is stressed uniformly. According to the invention, the connecting parts of the two connecting parts are mutually overlapped and mutually abutted without relative rotation, so that the problem of unstable connection caused by uneven stress on one side of any connecting part can be effectively avoided, and the stress failure of the connecting device in the stretching or compressing process of the armor type protective cover is avoided.
Meanwhile, the plug-in structure adopted by the invention can realize self-locking between the two connecting pieces. The distance between two adjacent side walls in the inner support of the armor type protective cover is smaller than the distance between the far ends, deviating from each other, of the connecting pieces, the two connecting pieces are abutted by the side walls of the inner support to be tightly attached to each other, and therefore the connecting point between the two connecting pieces is not stressed all the time in the whole stretching or compressing process of the armor type protective cover. Therefore, the internal support, particularly the connecting device arranged between the internal support and the connecting device, keeps the allowance of deformation in the whole stretching or shrinking process of the armor type protective cover, and is rarely stressed in the whole stretching or compressing process, so that the service life of the internal support can be further prolonged.
According to the invention, the strength of the scales of the armor type protective cover is lower than that of the inner support, and the strength of the inner support is lower than that of the connecting device arranged between the inner support and the inner support, so that the abrasion of the outer scales to the inner connecting support can be effectively avoided, the abrasion of the traditional structure with strong outside and weak inside to the inner flexible material and the supporting plate is further avoided, the integral structure of the protective cover is ensured to be complete and not easy to fail and break, and the service life of the integral protective cover structure is further prolonged.
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 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, illustrate the invention and together with the embodiments of the invention, and do not limit the invention. In the drawings:
FIG. 1 is a schematic view of an assembly process of a connection device for an armor-type shield of the present invention;
fig. 2 is a schematic view of the internal structure of an armor-type shield incorporating the connecting device of the present invention.
In the drawings, 1 denotes a first connection member; 11 denotes a first connection structure; 12 denotes a first stent attachment point; 13 denotes a first fastener attachment point; 2 represents a second connection; 21 represents a second connection structure; 22 denotes a second stent attachment point; 23 denotes a second fastener attachment point; 3 represents a fixing member; 4 represents scales; 41 denotes an internal stent; 42 denotes a screw; 43 denotes a tablet.
Detailed Description
In order to make the purpose and technical solutions of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present invention fall within 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 each exists alone or both exist.
The meaning of the inner and outer in the invention is that the direction from the scales to the connecting device between the internal brackets is the inner relative to the armor type protective cover, and the opposite is the outer; and not to a particular limitation of the mechanism of the device of the present invention.
"connected" as used herein means either a direct connection between components or an indirect connection between components via other components.
The armor formula guard shield is mainly used to cover at the extending structure surface of lathe, provides the protection. The conventional armor type shield comprises scales arranged outside, a supporting plate arranged inside perpendicular to the scales, and a flexible material connected with the supporting plates corresponding to the scales at each level. The support plates or scales of the armor type shield are pulled or pushed by the telescopic structure of the machine tool, in the process, the flexible material is matched with corresponding bending or stretching of the support plates at all levels, the expansion and the contraction are realized, the limitation of the movable travel range between the scales is realized, and the excessive stretching between the scales is avoided to loosen or expose the internal structure of the shield. However, the flexible material is not mechanically strong enough and is easily broken at the bending portion thereof to cause the failure of the whole shield structure.
In order to prolong the service life of the shield, the invention provides a brand new armor type shield which replaces the structure.
Referring to fig. 2, the armor type shield provided by the invention is provided with an inner bracket 41 attached to the side wall of each stage of scales 4 which are bent inwards. The inner support can be made of metal, and a metal sheet with higher strength and thickness than the scale 4, such as a stainless steel sheet, is generally preferred. The side walls of the inner frames 41 of the adjacent two-stage scales 4 are connected by a connecting device with elasticity.
Referring to fig. 1, the connecting device of the present invention includes:
a first connecting piece 1, one end of which is provided with a first connecting structure 11, and the other end of which is connected with the side wall of the inner bracket of the armor type shield;
a second connecting member 2, one end of which is provided with a second connecting structure 21, and the other end of which is connected to the side wall of another adjacent inner bracket of the armor-type shield;
the second connection structure 21 is fixedly connected with the first connection structure 11.
In the above-mentioned connection device, in the connection state of the first connector and the second connector, the first connector 1 and the second connector 2 are used for connecting the ends of the inner support 41 of the armor-type shield, which are away from each other. The initial distance between the two ends of the connecting device is set to exceed the stretching limit distance between two adjacent two stages of scales 4 inside the armor type protective cover under the condition that the connecting device is not subjected to external force.
When the connecting device is installed in the inner bracket 41 of the armor-type shield, the far ends of the first connecting piece and the second connecting piece, which are away from each other, are respectively provided with screw holes shown in fig. 1 as a first bracket connecting point 12 and a second bracket connecting point 22, and the first bracket connecting point 12 and the second bracket connecting point 22 are respectively fixed between the side walls of the inner bracket 41 connected with the adjacent two-stage scales 4 in the inner portion of the armor-type shield in a mode of screws 42, bolts or clamping pieces, puncture structures and the like. Because the distance between the internal brackets is smaller than the initial distance of the connecting device, the far ends of the first connecting piece and the second connecting piece, which are mutually away from each other, are respectively abutted against the side walls of the adjacent internal brackets, and the acting force for maintaining the initial state is provided for the internal brackets and the scales connected with the internal brackets.
To avoid failure of the first and second bracket attachment points, a pressing piece 43 may be provided between the screw 42 and the first bracket attachment point 12 and/or the second bracket attachment point 22, respectively. The screw 42 presses the pressing piece 43, and the pressing piece evenly applies the abutting force to the two first bracket connecting points 12 and the two second bracket connecting points 22 at the distal ends of the first connecting piece 1 and the second connecting piece 2 from the pressing piece plane, so that the pressing piece is stably and reliably fixed on the side wall of the inner bracket.
Therefore, the connecting devices can be stably assembled between the inner supports 41 of the scales 4 of each level of the armor type protective cover respectively, and each level of linkage of the inner supports is realized. Under the action of the connecting device, the armor type protective cover is driven by the telescopic structure of the machine tool to compress or stretch the distance between scales. At this time, the relative displacement between the scales 4 of each stage drives the inner frame 41 at the bending side thereof to compress or stretch each connecting device connected between the inner frames. Since the connection means is already in a slightly compressed state in the initial assembled state, the further compression or stretching between the scales does not exceed the stress range that it can withstand. The connecting device is elastically deformed under the action of the internal brackets, and transmits strain force to the front and rear internal brackets, so that the internal brackets are driven to have potential energy for recovering the initial state. Once the driving force of the machine tool telescopic structure is released, all levels of scales of the armor type protective cover can be driven by the internal connecting device to be in linkage and restored to the initial state.
Compared with the passive stress of the existing flexible material, the connecting device can actively drive all levels of scales of the armor type shield to synchronously link. Because the mechanical strength and the thickness of the integral metal spring plate of the connecting device are both larger than those of the internal bracket connected with the connecting device and are larger than those of the external scales, the internal strong and external weak structure is formed, and the internal connecting system of the armor type shield cannot be invalid due to the abrasion of the scales. Therefore, the invention can effectively ensure that the whole structure of the shield is complete and is not easy to fail and break, and further prolongs the service life of the whole shield structure.
Referring to fig. 2, in the above-mentioned connection device, the first connection structure 11 may be configured as a socket, and the second connection structure 21 may be correspondingly configured as a protrusion matching the size of the socket. The two are spliced to realize self-locking, and the installation is convenient.
Considering the stress condition between the inverted connection structures, the inserting grooves can be further arranged parallel to the end edges of the first connecting piece 1; the protrusion is arranged to protrude from the end edge of the second connector 2, parallel to the insertion groove. So as to avoid the connection loss caused by the mutual separation of the structures due to the relative rotation of the plug-in structures.
In a more specific implementation manner, the insertion groove is disposed at an intermediate position of the end portion of the first connector 1, and the protrusion protrudes from an intermediate position of the end edge of the second connector 2, both of which are in a form symmetrical to the long axis of the integral connection device. Therefore, the instability caused by single-side plugging can be further avoided, and the two plugging structures are prevented from being separated from failure due to relative rotation at the single-side plugging position. Under the state that the bulge is inserted into the inserting groove, one end of the first connecting piece 1 is overlapped with one end of the second connecting piece 2 and is mutually abutted, and the other ends of the first connecting piece are mutually far away and are respectively abutted and fixed on two adjacent side walls in the inner support of the armor type protective cover, so that linkage between all levels of the inner support is realized.
In order to ensure that the connecting device has enough elasticity to support the inner bracket to automatically restore to the initial state, in one implementation manner, the invention further provides a bending away from the second connecting piece 2 at a position close to the first connecting structure 11 in the first connecting piece 1; a bend is provided in the second connecting piece 2 near the second connecting structure 21 away from the first connecting piece 1. The connecting pieces at the back ends of the bending are mutually deviated, and the connecting pieces at the front ends of the bending are mutually abutted and spliced. The bending part is used as a fulcrum. When the armor type protective cover stretches to two sides, the distance between the connecting pieces at the bent rear ends is increased, but the initial distance between the two ends of the protective cover under the action of external force is not reached all the time due to the stretching limit size of the protective cover, so that the two connecting pieces are still kept in a compressed state when in use. In the state that the two connecting pieces are compressed, the bending part is used as a fulcrum, and the front end of the first connecting piece 1 and the front end of the second connecting piece 2 are always overlapped and mutually abutted due to the action of the bending angle and the fixing action of the bending front end splicing structure on the end parts of the two connecting pieces. The plug-in structure is not affected by external force applied by the shield structure in the whole compression or stretching process of the armor type shield. That is, the connection points 13, 23 between the two connectors of the present invention are not stressed all the time during stretching or compression of the armor-type shield. Therefore, the internal support, particularly the connecting device arranged between the internal support and the connecting device, keeps the allowance of deformation in the whole stretching or shrinking process of the armor type protective cover, and is rarely stressed in the whole stretching or compressing process, so that the service life of the internal support can be further prolonged.
However, in a preferred manner, in order to avoid that the connection points 13 and 23 between the two connection pieces relatively rotate to cause the loose connection structure to affect the stability of the connection device, the fixing piece 3 is further provided between the first connection structure 11 and the bend, and between the second connection structure 21 and the bend, and the front ends of the two connection pieces are connected through the fixing piece 3, so as to limit the relative rotation between the first connection piece 1 and the second connection piece 2, and ensure that the connection structure cannot rotate and loose, and ensure that the acting force of the connection device on the internal support cannot fail.
In a simpler implementation manner, the fixing piece 3 may be provided in the form of at least two screws, buckles, puncture structures, etc. arranged parallel to the insertion groove. It is only responsible for connecting two connecting pieces, avoids relative rotation between the connecting pieces, and does not need to bear the extrusion or stretching force of the whole armor type shield stretching process. Therefore, the connecting piece structure adopted by the invention can also effectively protect the cover fixing piece 3 and avoid the loosening failure caused by the stress.
Therefore, the invention realizes the connection and linkage of the scale internal support through the self-locking type plug-in structure and by utilizing the structure to connect each pair of connecting pieces with enough elasticity. The connecting and linkage structure is ingenious in design, the internal structure can be prevented from being directly driven by the machine tool telescopic structure to be stressed and damaged in the whole range of the telescopic movement of the armor type protective cover, and the service life of the armor type protective cover can be effectively prolonged. The internal structure is assembled only through bolts, screws or inserting modes, and the assembly and disassembly are simple and easy to maintain.
The foregoing is a description of embodiments of the invention, which are specific and detailed, but are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (6)
1. A connection device for an armor-type shield, comprising:
a first connecting piece (1), one end of which is provided with a first connecting structure (11), and the other end of which is connected with the side wall of the inner bracket of the armor type shield;
a second connecting piece (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 the other adjacent internal bracket of the armor type shield;
the second connecting structure (21) is fixedly connected with the first connecting structure (11);
the first connecting piece (1) and the second connecting piece (2) are connected with the end parts of the inner bracket of the armor type shield, and the end parts are away from each other;
the first connecting structure (11) is a splicing groove, and the second connecting structure (21) is a bulge matched with the size of the splicing groove;
the inserting groove is arranged at the middle position of the end part of the first connecting piece (1), and the bulge protrudes out of the middle position of the edge of the end part of the second connecting piece (2); in a state that the protrusion is inserted into the insertion groove, one end of the first connecting piece (1) is overlapped with one end of the second connecting piece (2) and is mutually abutted, and the other end of the first connecting piece (1) and the other end of the second connecting piece (2) are mutually far away from each other, are respectively abutted and fixed on two adjacent side walls in an inner support of the armor type protective cover;
the insertion 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 inserting groove.
2. The connection device according to claim 1, characterized in that a bend in the first connection piece (1) is provided close to the first connection structure (11) facing away from the second connection piece (2); a bend facing away from the first connecting piece (1) is arranged in the second connecting piece (2) at a position close to the second connecting structure (21).
3. The connecting device according to claim 2, characterized in that a fixing member (3) is further connected between the first connecting structure (11) and the bend and between the second connecting structure (21) and the bend, the fixing member (3) limiting the relative rotation between the first connecting member (1) and the second connecting member (2).
4. A connection device according to claim 3, characterized in that the fixing element (3) comprises at least two arranged parallel to the insertion groove.
5. An armor type shield comprising the connecting device of any one of claims 1-4.
6. A machine tool comprising the armor type cover of claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910883170.1A CN110449979B (en) | 2019-09-18 | 2019-09-18 | Connecting device, armor formula guard shield and lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910883170.1A CN110449979B (en) | 2019-09-18 | 2019-09-18 | Connecting device, armor formula guard shield and lathe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110449979A CN110449979A (en) | 2019-11-15 |
| CN110449979B true CN110449979B (en) | 2024-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910883170.1A Active CN110449979B (en) | 2019-09-18 | 2019-09-18 | Connecting device, armor formula guard shield and lathe |
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| Country | Link |
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| CN (1) | CN110449979B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202021100847U1 (en) * | 2021-02-19 | 2022-05-27 | MöllerWerke GmbH | Protective cover for a machine, in particular a protective machine cover |
| DE202022102945U1 (en) | 2022-05-19 | 2023-08-29 | MöllerWerke GmbH | Protective cover for a machine, in particular machine protective cover |
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