Positioning and clamping mechanism

Abstract

The utility model discloses a positioning and clamping mechanism which comprises a bearing seat, a fixing seat, a first limiting block, a second limiting block, a third limiting block, a fourth limiting block and a negative pressure adsorption hole. The bearing seat comprises a bearing part and a buffering part which are perpendicular to each other; the upper surface of the bearing part is used for bearing a workpiece; the fixing seat comprises a base and an extending seat which are perpendicular to each other, the base is parallel to the bearing part and located below the buffering part, and a first spring is arranged between the base and the buffering part; a first sliding rail extending in the first direction is arranged on the face, facing the buffering part, of the extending base, and the buffering part is connected with the first sliding rail through a first sliding block. The first limiting block and the second limiting block are arranged at an interval in the second direction; the third limiting block and the fourth limiting block are arranged at an interval in the third direction; the negative pressure adsorption hole is formed in the upper surface of the bearing part and located among the first limiting block, the second limiting block, the third limiting block and the fourth limiting block. The positioning and clamping mechanism has a good positioning and clamping effect and has a buffering effect.

Description

Technical Field

[0001] The present invention relates to the technical field of automation equipment, and in particular to a positioning and clamping mechanism. Background Art

[0002] In the automated inspection industry, in order to ensure the normal operation of the continuous production line, the workpieces to be inspected need to be delivered to the automated inspection production line in a timely manner, among which automated material receiving is an important link. In the existing technology, the focus is on designing and ensuring the positioning and clamping effect of the material receiving mechanism on the workpiece, but it is ignored that when receiving the material, the material receiving mechanism may squeeze the workpiece or even damage the workpiece. Utility Model Content

[0003] In view of the deficiencies in the prior art, one object of this specification is to provide a positioning and clamping mechanism having good positioning and clamping effects and a buffering effect.

[0004] To achieve the above-mentioned purpose, the embodiments of this specification provide a positioning and clamping mechanism, including:

[0005] The bearing seat comprises a bearing part and a buffer part which are perpendicular to each other, wherein the buffer part is located below the bearing part, and the upper surface of the bearing part is used for bearing the workpiece;

[0006] A fixed seat, comprising a base and an extension seat which are perpendicular to each other, wherein the base is parallel to the bearing part and is located below the buffer part, and a first spring is arranged between the base and the buffer part; a first slide rail extending along a first direction is arranged on a side of the extension seat facing the buffer part, and the buffer part is slidably connected to the first slide rail via a first slider;

[0007] A first limit block fixedly disposed on the upper surface of the bearing portion and a second limit block slidably disposed on the upper surface of the bearing portion, wherein the first limit block and the second limit block are spaced apart in the second direction;

[0008] A third limit block fixedly arranged on the upper surface of the bearing part and a fourth limit block slidably arranged on the upper surface of the bearing part, wherein the third limit block and the fourth limit block are arranged at intervals in the third direction; the first direction, the second direction and the third direction are perpendicular to each other;

[0009] A negative pressure adsorption hole is arranged on the upper surface of the bearing part, and the negative pressure adsorption hole is located between the first limiting block, the second limiting block, the third limiting block and the fourth limiting block.

[0010] As a preferred embodiment, a limiting rod is fixed to a side of the buffer portion facing away from the extension seat, and the limiting rod extends along the first direction; and a fifth limiting block is provided on the upper surface of the base for abutting against the lower surface of the limiting rod.

[0011] As a preferred embodiment, a second slide rail extending along the second direction is provided on an upper surface of the bearing portion away from the first limiting block, and the second limiting block is slidably connected to the second slide rail via a second sliding block.

[0012] As a preferred embodiment, the end of the bearing part away from the first limit block is fixedly connected to the first fixed block, and a second spring is provided between the second limit block and the first fixed block; when the second spring is in a natural state, the distance between the first limit block and the second limit block is smaller than the size of the workpiece in the second direction.

[0013] As a preferred implementation, the second limiting block is fixedly connected to a first shifting rod extending along the first direction.

[0014] As a preferred embodiment, an upper surface of the bearing portion away from the third limiting block is provided with a third slide rail extending along the third direction, and the fourth limiting block is slidably connected to the third slide rail via a third sliding block.

[0015] As a preferred embodiment, the end of the bearing part away from the third limit block is fixedly connected to the second fixed block, and a third spring is provided between the fourth limit block and the second fixed block; when the third spring is in a natural state, the distance between the third limit block and the fourth limit block is smaller than the size of the workpiece in the third direction.

[0016] As a preferred implementation, the fourth limiting block is fixedly connected to a second shifting rod extending along the first direction.

[0017] As a preferred embodiment, the upper surface of the bearing part includes a bearing surface and a mounting surface, the mounting surface is lower than the bearing surface, the bearing surface is used to bear the workpiece, and the second slide rail and the third slide rail are mounted on the mounting surface.

[0018] As a preferred embodiment, there are two first slide rails, and the two first slide rails are spaced apart in the second direction; the distance between the first fixed block and the first limiting block is smaller than the distance between the second fixed block and the third limiting block. Beneficial Effects

[0019] The positioning and clamping mechanism provided in this embodiment can position and clamp the workpiece in the second direction by setting a fixed first limit block and a sliding second limit block; can position and clamp the workpiece in the third direction by setting a fixed third limit block and a sliding fourth limit block; can negatively adsorb the workpiece in the first direction by setting negative pressure adsorption holes on the upper surface of the bearing part between the first limit block, the second limit block, the third limit block and the fourth limit block; therefore, the positioning and clamping mechanism has a good positioning and clamping effect. In addition, a first spring is provided between the bearing seat and the fixed seat, and the extension part of the fixed seat is provided with a first slide rail extending along the first direction, and the buffer part of the bearing seat is slidably connected to the first slide rail, so that when receiving the material, if the bearing part squeezes the workpiece, the bearing seat can move in the first direction away from the workpiece, and the first spring is compressed, which has a buffering effect to avoid damage to the workpiece.

[0020] With reference to the following description and the accompanying drawings, specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope.

[0021] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.

[0022] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 A schematic diagram of the three-dimensional structure of a positioning and clamping mechanism provided in this embodiment;

[0025] Figure 2 for Figure 1 A schematic diagram of a three-dimensional structure from another perspective;

[0026] Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure from another perspective.

[0027] Description of reference numerals:

[0028] 1. Bearing seat; 11. Bearing part; 111. Bearing surface; 112. Mounting surface; 12. Buffer part; 121. Limit rod; 2. Fixed seat; 21. Base; 22. Extension seat; 31. First limit block; 32. Second limit block; 33. Third limit block; 34. Fourth limit block; 35. Fifth limit block; 4. Negative pressure adsorption hole; 51. First fixed block; 52. Second fixed block; 61. First lever; 62. Second lever; 71. First spring; 72. Second spring; 73. Third spring; 81. First slide rail; 82. Second slide rail; 83. Third slide rail; 91. First slider; 92. Second slider; 93. Third slider; X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0030] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be another element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be another element centered thereon at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0032] See also Figures 1 to 3 The embodiment of the present application provides a positioning and clamping mechanism, comprising: a bearing seat 1 , a fixing seat 2 , a first limiting block 31 , a second limiting block 32 , a third limiting block 33 , a fourth limiting block 34 and a negative pressure adsorption hole 4 .

[0033] Among them, Figure 1As shown, the bearing seat 1 includes a vertical bearing portion 11 and a buffer portion 12, wherein the buffer portion 12 is located below the bearing portion 11, and the upper surface of the bearing portion 11 is used to bear the workpiece. Figure 2 As shown, the fixed seat 2 includes a base 21 and an extension seat 22 which are perpendicular to each other. The base 21 is parallel to the bearing part 11 and is located below the buffer part 12. A first spring 71 is provided between the base 21 and the buffer part 12. A first slide rail 81 extending along a first direction X is provided on a side of the extension seat 22 facing the buffer part 12. The buffer part 12 is slidably connected to the first slide rail 81 through a first slider 91. A first limit block 31 is fixedly arranged on the upper surface of the bearing part 11, and a second limit block 32 is slidably arranged on the upper surface of the bearing part 11. The first limit block 31 and the second limit block 32 are spaced apart in the second direction Y. A third limit block 33 is fixedly arranged on the upper surface of the bearing part 11, and a fourth limit block 34 is slidably arranged on the upper surface of the bearing part 11. The third limit block 33 and the fourth limit block 34 are spaced apart in the third direction Z. The negative pressure adsorption hole 4 is disposed on the upper surface of the bearing portion 11 and is located between the first limiting block 31 , the second limiting block 32 , the third limiting block 33 and the fourth limiting block 34 .

[0034] In this embodiment, the first direction X, the second direction Y and the third direction Z are perpendicular to each other in pairs. The first direction X may be a vertical direction, and the second direction Y and the third direction Z are two perpendicular directions in a horizontal plane.

[0035] The positioning and clamping mechanism provided in this embodiment can position and clamp the workpiece in the second direction Y by setting a fixed first limit block 31 and a sliding second limit block 32; can position and clamp the workpiece in the third direction Z by setting a fixed third limit block 33 and a sliding fourth limit block 34; by setting a negative pressure adsorption hole 4 on the upper surface of the bearing part 11 between the first limit block 31, the second limit block 32, the third limit block 33 and the fourth limit block 34, the workpiece can be negatively adsorbed in the first direction X; therefore, the positioning and clamping mechanism has a good positioning and clamping effect. In addition, a first spring 71 is provided between the bearing seat 1 and the fixed seat 2, and the extension part of the fixed seat 2 is provided with a first slide rail 81 extending along the first direction X, and the buffer part 12 of the bearing seat 1 is slidably connected to the first slide rail 81, so that when receiving the material, if the bearing part 11 squeezes the workpiece, the bearing seat 1 can move in the direction away from the workpiece along the first direction X, and the first spring 71 is compressed, which has a buffering effect to avoid damage to the workpiece.

[0036] In this embodiment, a limiting rod 121 is fixed to a side of the buffer portion 12 facing away from the extension seat 22, and the limiting rod 121 extends along the first direction X. The upper surface of the base 21 is provided with a fifth limiting block 35 for abutting against the lower surface of the limiting rod 121. When the first spring 71 is in a natural state, the limiting rod 121 and the fifth limiting block 35 are separated, and the bearing portion 11 is not pressed against the workpiece at this time. During the material connection process, if the bearing portion 11 is pressed against the workpiece, the first spring 71 is compressed, and the limiting rod 121 moves downward until it abuts against the fifth limiting block 35. By providing the limiting rod 121 and the fifth limiting block 35, the amount of compression of the first spring 71 can be limited to prevent the bearing seat 1 from continuously moving downward.

[0037] like Figure 3 As shown, the upper surface of the bearing part 11 away from the first limit block 31 is provided with a second slide rail 82 extending along the second direction Y, and the second limit block 32 is slidably connected to the second slide rail 82 through a second slider 92, so that the second limit block 32 can move along the second direction Y to approach or move away from the workpiece.

[0038] Specifically, the end of the bearing part 11 away from the first limit block 31 is fixedly connected with the first fixing block 51, and a second spring 72 is provided between the second limit block 32 and the first fixing block 51. When the second spring 72 is in a natural state, the distance between the first limit block 31 and the second limit block 32 is smaller than the size of the workpiece in the second direction Y, so that when the workpiece is placed on the upper surface of the bearing part 11, the first limit block 31 and the second limit block 32 can clamp the workpiece in the second direction Y, and the second spring 72 is in a compressed state.

[0039] Preferably, the second limit block 32 is fixedly connected to a first lever 61 extending along the first direction X. When receiving the material, the first lever 61 is firstly moved to move the second limit block 32 in a direction away from the first limit block 31 until the distance between the first limit block 31 and the second limit block 32 is larger than the size of the workpiece in the second direction Y; after the workpiece is placed on the upper surface of the bearing part 11, the first lever 61 is released, and under the push of the second spring 72, the second limit block 32 moves in a direction close to the first limit block 31 until the second limit block 32 and the first limit block 31 clamp the workpiece.

[0040] like Figure 2 As shown, the upper surface of the bearing part 11 away from the third limit block 33 is provided with a third slide rail 83 extending along the third direction Z, and the fourth limit block 34 is slidably connected to the third slide rail 83 through a third slider 93, so that the fourth limit block 34 can move along the third direction Z to approach or move away from the workpiece.

[0041] Specifically, one end of the bearing part 11 away from the third limit block 33 is fixedly connected to the second fixed block 52, and a third spring 73 is provided between the fourth limit block 34 and the second fixed block 52; when the third spring 73 is in a natural state, the distance between the third limit block 33 and the fourth limit block 34 is smaller than the size of the workpiece in the third direction Z, so that when the workpiece is placed on the upper surface of the bearing part 11, the third limit block 33 and the fourth limit block 34 can clamp the workpiece in the third direction Z, and the third spring 73 is in a compressed state.

[0042] Preferably, the fourth limit block 34 is fixedly connected to a second lever 62 extending along the first direction X. When receiving the material, the second lever 62 is firstly moved to move the fourth limit block 34 in a direction away from the third limit block 33 until the distance between the third limit block 33 and the fourth limit block 34 is larger than the size of the workpiece in the third direction Z; after the workpiece is placed on the upper surface of the bearing part 11, the second lever 62 is released, and the fourth limit block 34 is pushed by the third spring 73 to move in a direction close to the third limit block 33 until the fourth limit block 34 and the third limit block 33 clamp the workpiece.

[0043] In this embodiment, the upper surface of the bearing portion 11 includes a bearing surface 111 and a mounting surface 112. The bearing surface 111 is used to bear the workpiece. The mounting surface 112 is lower than the bearing surface 111, so that the second slide rail 82 and the third slide rail 83 can be easily mounted on the mounting surface 112.

[0044] Preferably, there are two first slide rails 81. The distance between the first fixed block 51 and the first limit block 31 is smaller than the distance between the second fixed block 52 and the third limit block 33, so that the positioning clamping mechanism provided by the present application is suitable for carrying a rectangular workpiece, the long side of the workpiece is arranged along the third direction Z, and the short side of the workpiece is arranged along the second direction Y. The two first slide rails 81 are arranged at intervals in the second direction Y, which can make the overall structure of the device more stable and reliable.

[0045] It should be noted that, in the description of this specification, the terms "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, and they cannot be understood as indicating or implying relative importance. In addition, in the description of this specification, unless otherwise specified, the meaning of "plurality" is two or more.

[0046] Any numerical value cited herein includes all values ​​of lower and upper values ​​that increase by one unit from the lower limit to the upper limit, and there is at least a two-unit interval between any lower value and any higher value. For example, if the value of the quantity of a component or a process variable (such as temperature, pressure, time, etc.) is set forth to be from 1 to 90, preferably from 20 to 80, and more preferably from 30 to 70, the purpose is to illustrate that values ​​such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also explicitly listed in the specification. For values ​​less than 1, one unit is appropriately considered to be 0.0001, 0.001, 0.01, 0.1. These are merely examples that are intended to be clearly expressed, and it can be considered that all possible combinations of numerical values ​​listed between the lowest value and the highest value are clearly set forth in the specification in a similar manner.

[0047] Unless otherwise indicated, all ranges include the endpoints and all numbers between the endpoints. "About" or "approximately" used with a range applies to both endpoints of the range. Thus, "about 20 to 30" is intended to cover "about 20 to about 30", including at least the specified endpoints.

[0048] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for all purposes. The term "consisting essentially of..." to describe a combination should include the identified elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe a combination of elements, ingredients, parts or steps herein also contemplates embodiments that consist essentially of these elements, ingredients, parts or steps. By using the term "may", it is intended to indicate that any attribute described that "may" include is optional.

[0049] Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "an" used to describe an element, ingredient, part or step is not intended to exclude other elements, ingredients, parts or steps.

[0050] It should be understood that the above description is for illustration and not for limitation. By reading the above description, many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art. Therefore, the scope of the present teachings should not be determined with reference to the above description, but should be determined with reference to the appended claims and the full scope of equivalents possessed by these claims. For the purpose of comprehensiveness, all articles and references, including the disclosures of patent applications and announcements, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to abandon the subject matter, nor should it be considered that the inventor has not considered the subject matter as part of the disclosed utility model subject matter.

Claims

1. A positioning and clamping mechanism, characterized in that: include: The bearing seat comprises a bearing part and a buffer part which are perpendicular to each other, wherein the buffer part is located below the bearing part, and the upper surface of the bearing part is used for bearing the workpiece; A fixed seat, comprising a base and an extension seat which are perpendicular to each other, wherein the base is parallel to the bearing part and is located below the buffer part, and a first spring is arranged between the base and the buffer part; a first slide rail extending along a first direction is arranged on a side of the extension seat facing the buffer part, and the buffer part is slidably connected to the first slide rail via a first slider; A first limit block fixedly disposed on the upper surface of the bearing portion and a second limit block slidably disposed on the upper surface of the bearing portion, wherein the first limit block and the second limit block are spaced apart in the second direction; A third limit block fixedly arranged on the upper surface of the bearing part and a fourth limit block slidably arranged on the upper surface of the bearing part, wherein the third limit block and the fourth limit block are arranged at intervals in the third direction; the first direction, the second direction and the third direction are perpendicular to each other; A negative pressure adsorption hole is arranged on the upper surface of the bearing part, and the negative pressure adsorption hole is located between the first limiting block, the second limiting block, the third limiting block and the fourth limiting block.

2. The positioning and clamping mechanism according to claim 1, characterized in that: A limiting rod is fixed to a side of the buffer portion facing away from the extension seat, and the limiting rod extends along the first direction; a fifth limiting block for abutting against a lower surface of the limiting rod is provided on the upper surface of the base.

3. The positioning and clamping mechanism according to claim 1, characterized in that: A second slide rail extending along the second direction is disposed on the upper surface of the bearing portion away from the first limiting block, and the second limiting block is slidably connected to the second slide rail via a second sliding block.

4. The positioning and clamping mechanism according to claim 3, characterized in that: One end of the bearing part away from the first limit block is fixedly connected to the first fixed block, and a second spring is provided between the second limit block and the first fixed block; when the second spring is in a natural state, the distance between the first limit block and the second limit block is smaller than the size of the workpiece in the second direction.

5. The positioning and clamping mechanism according to claim 4, characterized in that: The second limiting block is fixedly connected to a first shifting rod extending along the first direction.

6. The positioning and clamping mechanism according to claim 4, characterized in that: A third slide rail extending along the third direction is disposed on the upper surface of the bearing portion away from the third limiting block, and the fourth limiting block is slidably connected to the third slide rail via a third sliding block.

7. The positioning and clamping mechanism according to claim 6, characterized in that: One end of the bearing part away from the third limit block is fixedly connected to the second fixed block, and a third spring is provided between the fourth limit block and the second fixed block; when the third spring is in a natural state, the distance between the third limit block and the fourth limit block is smaller than the size of the workpiece in the third direction.

8. The positioning and clamping mechanism according to claim 7, characterized in that: The fourth limiting block is fixedly connected to a second shifting rod extending along the first direction.

9. The positioning and clamping mechanism according to claim 7, characterized in that: The upper surface of the bearing part includes a bearing surface and a mounting surface, the mounting surface is lower than the bearing surface, the bearing surface is used to bear the workpiece, and the second slide rail and the third slide rail are mounted on the mounting surface.

10. The positioning and clamping mechanism according to claim 7, characterized in that: There are two first slide rails, and the two first slide rails are spaced apart in the second direction; the distance between the first fixed block and the first limiting block is smaller than the distance between the second fixed block and the third limiting block.

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