CN214921790U - Double-guide-rod cylinder limiting mechanism - Google Patents
Double-guide-rod cylinder limiting mechanism Download PDFInfo
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- CN214921790U CN214921790U CN202120311696.5U CN202120311696U CN214921790U CN 214921790 U CN214921790 U CN 214921790U CN 202120311696 U CN202120311696 U CN 202120311696U CN 214921790 U CN214921790 U CN 214921790U
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Abstract
The utility model provides a double-guide rod cylinder limiting mechanism, which comprises a cylinder body, a movable end, two guide rods, a first connecting plate, a second connecting plate and a plurality of first limiting units; one end of the cylinder body is provided with a movable end, and the movable end can extend or retract relative to the cylinder body; the cylinder body is provided with a plurality of first through holes which penetrate through the cylinder body, each guide rod is arranged in the first through hole in a penetrating manner, two ends of each guide rod extend outwards along the axial direction of the first through hole respectively, and the guide rods are connected with the cylinder body in a sliding manner; the other end of each guide rod, which is far away from the movable end, is fixedly connected with the first connecting plate; the second connecting plate is fixedly arranged on the end face, far away from the movable end, of the cylinder body, a plurality of second through holes are formed in the second connecting plate, and the guide rods penetrate through the second through holes; the first limiting unit comprises a first limiting block and a second limiting block, the first limiting block and the second limiting block are respectively and oppositely arranged on the first connecting plate and the second connecting plate, and the first limiting block is matched with the second limiting block in shape.
Description
Technical Field
The utility model relates to an automobile welding jig equipment technical field especially relates to a two guide arm cylinder stop gear.
Background
In the automotive body-in-white machining process, a body welding jig needs to be used. The automobile body welding fixture drives the positioning pin and other workpieces to move, and the positioning effect is achieved. The welding jig who uses at present mostly uses the cylinder to drive the locating pin and stretches out, and the cylinder lacks further spacing in the state of stretching out for the cylinder of state of stretching out is stable inadequately, takes place to rock easily, leads to pin positioning state unreliable. In addition, the stroke of the existing air cylinder is not well adjusted, only two states of extension or retraction are provided, the extension amount is not well controlled, if the supporting structure is continuously arranged in the extension direction of the air cylinder, the air cylinder occupies larger equipment space, and clamping and fixing of the equipment on the clamp can be influenced. The above factors affect the reliability of the welding jig.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a can reliably inject two guide arm cylinder stop gear of the state of stretching out of cylinder.
The technical scheme of the utility model is realized like this: the utility model provides a double-guide-rod cylinder limiting mechanism, which comprises a cylinder body (1), a movable end (2), two guide rods (3), a first connecting plate (4), a second connecting plate (5) and a plurality of first limiting units (6); one end of the cylinder body (1) is provided with a movable end (2), and the movable end (2) can extend or retract relative to the cylinder body (1); the cylinder body (1) is provided with a plurality of first through holes (11) which penetrate through the cylinder body, each guide rod (3) is arranged in the first through hole (11) in a penetrating mode, two ends of each guide rod (3) extend outwards along the axial direction of the first through hole (11) respectively, each guide rod (3) is connected with the cylinder body (1) in a sliding mode, and one end of each guide rod (3) is fixedly connected with the movable end (2);
the first connecting plate (4) is arranged at the other end of the cylinder body (1) opposite to the push rod, and the other end of each guide rod (3) far away from the movable end (2) is fixedly connected with the first connecting plate (4);
the second connecting plate (5) is fixedly arranged on the end face, far away from the movable end (2), of the cylinder body (1), a plurality of second through holes (51) are formed in the second connecting plate (5), and the guide rod (3) penetrates through the second through holes (51);
the first limiting unit (6) comprises a first limiting block (61) and a second limiting block (62) which are arranged in pair, and the first limiting block (61) is fixedly arranged on the end face, close to the cylinder body (1), of the first connecting plate (4) and extends outwards towards the cylinder body (1); the second limiting block (62) is fixedly arranged on the end face, far away from the movable end (2), of the second connecting plate (5) and extends outwards towards the first connecting plate (4);
the movable end (2) drives the first limiting block (61) and the first connecting plate (4) to move synchronously, so that the adjacent end faces of the first limiting block (61) and the second limiting block (62) are abutted; the first limiting block (61) and the second limiting block (62) in the abutting state restrain the movable end (2) from shaking in the axial direction and the radial direction.
On the basis of the above technical solution, preferably, the first limiting units (6) are adjacently and sequentially arranged on the second connecting plate (5) or the first connecting plate (4) between the adjacent guide rods (3).
Preferably, the end of each first limiting block (61) or second limiting block (62) of each first limiting unit (6) extending outwards is provided with a protrusion or a recess, and the shape of the protrusion is matched with that of the recess.
Further preferably, the central axes of the protruding portions or the recessed portions of the adjacent first stopper (61) or the adjacent second stopper (62) are not parallel to each other.
Further preferably, the length of the first stopper (61) or the second stopper (62) along the extending direction of the first through hole (11) is adjustable.
Further preferably, the cylinder further comprises a second limiting unit (7), and the second limiting unit (7) is arranged on one side, close to the movable end (2), of the cylinder body (1); the movable part of the second limiting unit (7) moves along the same direction of the movable end (2) and selectively abuts against the outer surface of the guide rod (3) extending out of the cylinder body (1).
Still preferably, the second limiting unit (7) comprises a sleeve (71), a mandril (72) and a slide block (73), the sleeve (71) is hollow, and the sleeve (71) is fixedly connected with the cylinder body (1); a push rod (72) is arranged in the sleeve (71), one end of the push rod (72) extends into the sleeve (71) and is connected with the sleeve in a sliding way, and the other end of the push rod (72) is fixedly connected with the first connecting plate (4); a through window is further arranged on the sleeve (71), the window is communicated with the interior of the sleeve (71), a sliding block (73) is arranged in the window, and the sliding block (73) is connected with the sleeve (71) in a sliding manner; the ejector rod (72) as a movable part of the second limiting unit (7) moves synchronously with the movable end (2) or the guide rod (3) and abuts against the surface of the sliding block (73), and the sliding block (73) extends out of the window and abuts against the surface of the guide rod (3).
Still further preferably, one end of the ejector rod (72) extending into the sleeve (71) is provided with a tapered end surface which selectively abuts against the part of the slide block (73) extending into the sleeve (71).
The utility model provides a pair of two guide arm cylinder stop gear, for prior art, following beneficial effect has:
(1) the utility model realizes the restraint of the movable end and the guide rod in the stretching state by arranging the first connecting plate, the second connecting plate and the first limiting unit, prevents the unreliable stretching state caused by the lack of restraint of the free end of the guide rod after stretching out, and improves the stability of the stretched movable end of the cylinder;
(2) the adjacent first limiting units are sequentially arranged, so that the contact area of the limiting blocks can be increased, and the central axes of the protruding parts or the recessed parts of the end parts of the adjacent first limiting blocks or the adjacent second limiting blocks are not parallel, so that the constraint of the shaking of the guide rod in the axial direction and the radial direction can be realized;
(3) a cushion block can be additionally arranged between the first limiting unit and the first connecting plate or the second connecting plate to adjust the distance between the first limiting block and the second limiting block and further adjust the stroke of the movable end;
(4) the second limiting unit can synchronously move along with the first limiting unit or the guide rod, and supports the surface of the guide rod close to the movable end, so that the stability of the extending state of the movable end is further improved;
(5) the sliding block of the second limiting unit can be retracted into the sleeve, and the normal reset of the movable end is not affected.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a perspective view of a structure of a double-guide-rod cylinder limiting mechanism of the present invention;
fig. 2 is a front view of a first connecting plate of a double-guide-rod cylinder limiting mechanism according to the present invention;
fig. 3 is a front view of a second connecting plate of the double-guide-rod cylinder limiting mechanism of the present invention;
fig. 4 is a perspective view of a first limiting block of a first limiting unit of the double-guide-rod cylinder limiting mechanism of the present invention;
fig. 5 is a perspective view of a second limiting block of a first limiting unit of the double-guide-rod cylinder limiting mechanism of the present invention;
fig. 6 is a left side view of a half section of a second limiting unit of the double-guide-rod cylinder limiting mechanism of the present invention;
fig. 7 is a left side view of the second limiting unit of the double-guide-rod cylinder limiting mechanism of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
As shown in fig. 1-5, the technical solution of the present invention is realized as follows: the utility model provides a double-guide rod cylinder limiting mechanism, which comprises a cylinder body 1, a movable end 2, two guide rods 3, a first connecting plate 4, a second connecting plate 5, a plurality of first limiting units 6 and a second limiting unit 7;
one end of the cylinder body 1 is provided with a movable end 2, and the movable end 2 can extend or retract relative to the cylinder body 1; the cylinder body 1 is provided with a plurality of first through holes 11 which penetrate through the cylinder body, each guide rod 3 is arranged in the first through hole 11 in a penetrating mode, two ends of each guide rod 3 extend outwards along the axial direction of the first through hole 11, each guide rod 3 is connected with the cylinder body 1 in a sliding mode, and one end of each guide rod 3 is fixedly connected with the movable end 2; the cylinder body 1 and the movable end 2 are similar to a common cylinder in structure. The difference lies in that the guide rod 3 is two, and link up the cylinder body 1 setting, and the part that the guide rod 3 surpasss the cylinder body 1 is as the installation position of first connecting plate 1.
The first connecting plate 4 is arranged at the other end of the cylinder body 1 opposite to the push rod, and the other end of each guide rod 3 far away from the movable end 2 is fixedly connected with the first connecting plate 4; the first connecting plate 4 restrains the end parts of the two guide rods 3 far away from the movable end to enable the two guide rods to move synchronously, and when the first connecting plate 4 abuts against the cylinder body 1, the purpose of limiting the stroke of the movable end 2 can be achieved. Although the utility model discloses the cylinder that corresponds is the structure of two guide arms, other similar straight line cylinders can also be suitable for.
In order to further improve the anti-shaking capability of the movable end 2-stage guide rod 3 in the axial direction and the radial direction, the utility model is provided with a second connecting plate 5 and a first limiting unit 6, the second connecting plate 5 is fixedly arranged on the end surface of the cylinder body 1 far away from the movable end 2, the second connecting plate 5 is provided with a plurality of second through holes 51, and the guide rod 3 penetrates through the second through holes 51; the second connecting plate 5 is disposed opposite to the first connecting plate 4.
The first limiting unit 6 comprises a first limiting block 61 and a second limiting block 62 which are arranged in pair, the first limiting block 61 is fixedly arranged on the end face, close to the cylinder body 1, of the first connecting plate 4 and extends outwards towards the cylinder body 1; the second limiting block 62 is fixedly arranged on the end face, away from the movable end 2, of the second connecting plate 5 and extends outwards towards the first connecting plate 4; the first stopper 61 and the second stopper 62 are provided on the first connecting plate 4 and the second connecting plate 5, respectively. When the movable end 2 drives the first limiting block 61 and the first connecting plate 4 to move synchronously, the adjacent end surfaces of the first limiting block 61 and the second limiting block 62 are abutted.
As can be seen from fig. 2 and 3, the first limiting units 6 are adjacently and sequentially disposed on the second connecting plate 5 or the first connecting plate 4 between the adjacent guide rods 3. The first connecting plate 4 and the second connecting plate 5 are provided with sinking grooves for placing the first limiting block 61 or the second limiting block 62, and the pre-positioning function can be realized.
In order to make the first limiting block 61 and the second limiting block 62 in the abutting state restrain the movable end 2 from shaking in the axial direction and the radial direction, specifically, a protrusion or a recess is correspondingly arranged on the outwardly extending end of the first limiting block 61 or the second limiting block 62 of each first limiting unit 6, and the shape of the protrusion is matched with that of the recess. The central axes of the protruding portions or the recessed portions of the adjacent first stopper 61 or second stopper 62 are not parallel to each other. Fig. 1, in conjunction with fig. 4 and 5, shows a particular example of the orthogonal arrangement of the protrusions or recesses on the surface of the adjacent first stopper 61 or second stopper 62, which is easy to implement.
In a further improvement, the length of the first stopper 61 or the second stopper 62 along the extending direction of the first through hole 11 is adjustable. The specific adjustment manner can be realized by arranging one or more cushion blocks between the first stopper 61 and the first connecting plate 4 or between the second stopper 62 and the second connecting plate 5.
As shown in fig. 6 and 7, as another embodiment of the present invention, in order to further support the side of the guide rod 3 close to the movable end 2, the present invention further includes a second limiting unit 7, and the second limiting unit 7 is disposed on the side of the cylinder body 1 close to the movable end 2; the movable part of the second limiting unit 7 moves along the same direction of the movable end 2 and selectively abuts against the outer surface of the guide rod 3 extending out of the cylinder body 1.
Specifically, the second limiting unit 7 comprises a sleeve 71, a mandril 72 and a slide block 73, the sleeve 71 is hollow, and the sleeve 71 is fixedly connected with the cylinder body 1; a push rod 72 is arranged in the sleeve 71, one end of the push rod 72 extends into the sleeve 71 and is connected with the sleeve in a sliding way, and the other end of the push rod 72 is fixedly connected with the first connecting plate 4; a through window is further formed in the sleeve 71 and is communicated with the interior of the sleeve 71, a sliding block 73 is arranged in the window, and the sliding block 73 is connected with the sleeve 71 in a sliding mode; the push rod 72, as a movable part of the second limiting unit 7, moves synchronously with the movable end 2 or the guide rod 3, abuts against the surface of the slide block 73, and the slide block 73 extends out of the window and abuts against the surface of the guide rod 3.
The end of the rod 72 extending into the sleeve 71 has a tapered end surface that selectively abuts the portion of the slider 73 extending into the sleeve 71. The conical end surface of the ejector rod 72 facilitates the ejection of the slider 73 out of the window, although an arc-shaped surface may be provided on the end surface, which is not described in detail herein.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A double-guide-rod cylinder limiting mechanism comprises a cylinder body (1), a movable end (2) and two guide rods (3), wherein the movable end (2) is arranged at one end of the cylinder body (1), and the movable end (2) can extend out or retract relative to the cylinder body (1); the cylinder body (1) is provided with a plurality of first through holes (11) which penetrate through the cylinder body, each guide rod (3) is arranged in the first through hole (11) in a penetrating mode, two ends of each guide rod (3) extend outwards along the axial direction of the first through hole (11) respectively, each guide rod (3) is connected with the cylinder body (1) in a sliding mode, and one end of each guide rod (3) is fixedly connected with the movable end (2); the method is characterized in that: the device also comprises a first connecting plate (4), a second connecting plate (5) and a plurality of first limiting units (6);
the first connecting plate (4) is arranged at the other end of the cylinder body (1) opposite to the push rod, and the other end of each guide rod (3) far away from the movable end (2) is fixedly connected with the first connecting plate (4);
the second connecting plate (5) is fixedly arranged on the end face, far away from the movable end (2), of the cylinder body (1), a plurality of second through holes (51) are formed in the second connecting plate (5), and the guide rod (3) penetrates through the second through holes (51);
the first limiting unit (6) comprises a first limiting block (61) and a second limiting block (62) which are arranged in pair, and the first limiting block (61) is fixedly arranged on the end face, close to the cylinder body (1), of the first connecting plate (4) and extends outwards towards the cylinder body (1); the second limiting block (62) is fixedly arranged on the end face, far away from the movable end (2), of the second connecting plate (5) and extends outwards towards the first connecting plate (4);
the movable end (2) drives the first limiting block (61) and the first connecting plate (4) to move synchronously, so that the adjacent end faces of the first limiting block (61) and the second limiting block (62) are abutted; the first limiting block (61) and the second limiting block (62) in the abutting state restrain the movable end (2) from shaking in the axial direction and the radial direction.
2. The double-guide-rod cylinder limiting mechanism of claim 1, wherein: the first limiting units (6) are arranged on the second connecting plate (5) or the first connecting plate (4) between the adjacent guide rods (3) adjacently and sequentially.
3. The double-guide-rod cylinder limiting mechanism of claim 2, wherein: the end part of each first limiting block (61) or second limiting block (62) of each first limiting unit (6) extending outwards is correspondingly provided with a protruding part or a recessed part, and the protruding part is matched with the recessed part in shape.
4. The double-guide-rod cylinder limiting mechanism of claim 3, wherein: the central axes of the protruding parts or the recessed parts on the adjacent first limiting blocks (61) or the adjacent second limiting blocks (62) are not parallel to each other.
5. The double-guide-rod cylinder limiting mechanism of claim 2, wherein: the length of the first limiting block (61) or the second limiting block (62) along the extending direction of the first through hole (11) is adjustable.
6. The double-guide-rod cylinder limiting mechanism of claim 2, wherein: the cylinder body (1) is provided with a movable end (2), and the cylinder body is provided with a first limiting unit (7); the movable part of the second limiting unit (7) moves along the same direction of the movable end (2) and selectively abuts against the outer surface of the guide rod (3) extending out of the cylinder body (1).
7. The double-guide-rod cylinder limiting mechanism of claim 6, wherein: the second limiting unit (7) comprises a sleeve (71), an ejector rod (72) and a sliding block (73), the sleeve (71) is hollow, and the sleeve (71) is fixedly connected with the cylinder body (1); a push rod (72) is arranged in the sleeve (71), one end of the push rod (72) extends into the sleeve (71) and is connected with the sleeve in a sliding way, and the other end of the push rod (72) is fixedly connected with the first connecting plate (4); a through window is further arranged on the sleeve (71), the window is communicated with the interior of the sleeve (71), a sliding block (73) is arranged in the window, and the sliding block (73) is connected with the sleeve (71) in a sliding manner; the ejector rod (72) as a movable part of the second limiting unit (7) moves synchronously with the movable end (2) or the guide rod (3) and abuts against the surface of the sliding block (73), and the sliding block (73) extends out of the window and abuts against the surface of the guide rod (3).
8. The double-guide-rod cylinder limiting mechanism of claim 7, wherein: one end of the ejector rod (72) extending into the sleeve (71) is provided with a conical end surface which selectively abuts against the part of the sliding block (73) extending into the sleeve (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120311696.5U CN214921790U (en) | 2021-02-03 | 2021-02-03 | Double-guide-rod cylinder limiting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120311696.5U CN214921790U (en) | 2021-02-03 | 2021-02-03 | Double-guide-rod cylinder limiting mechanism |
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| Publication Number | Publication Date |
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| CN214921790U true CN214921790U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120311696.5U Active CN214921790U (en) | 2021-02-03 | 2021-02-03 | Double-guide-rod cylinder limiting mechanism |
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| CN (1) | CN214921790U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114769627A (en) * | 2022-04-01 | 2022-07-22 | 浙江陀曼智能科技股份有限公司 | Lathe tool feeding mechanism with stroke adjusting function and bearing ring processing lathe |
-
2021
- 2021-02-03 CN CN202120311696.5U patent/CN214921790U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114769627A (en) * | 2022-04-01 | 2022-07-22 | 浙江陀曼智能科技股份有限公司 | Lathe tool feeding mechanism with stroke adjusting function and bearing ring processing lathe |
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