CN211717403U - Clamping and positioning device for straightness detection of working edge of knife-edge-shaped ruler - Google Patents
Clamping and positioning device for straightness detection of working edge of knife-edge-shaped ruler Download PDFInfo
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- CN211717403U CN211717403U CN202020785730.8U CN202020785730U CN211717403U CN 211717403 U CN211717403 U CN 211717403U CN 202020785730 U CN202020785730 U CN 202020785730U CN 211717403 U CN211717403 U CN 211717403U
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Abstract
The utility model discloses a clamping and positioning device for detecting the straightness of a working edge of a knife-edge-shaped ruler, which comprises a bottom plate and two positioning seats vertically arranged on the bottom plate, wherein a grinding surface flat ruler used for supporting the knife-edge-shaped ruler is arranged between the two positioning seats, and the bottom end of the grinding surface flat ruler is limited and arranged on a leveling mechanism used for adjusting the flatness of the grinding surface flat ruler through a limiting structure of the grinding surface flat ruler; clamping mechanisms used for clamping and positioning the knife-edge-shaped ruler left and right are detachably arranged at the top ends of the opposite side walls of the two positioning seats. The utility model discloses need not people's hand support in the straightness accuracy verification process who carries out edge of a knife shape ruler work edge, avoided the influence of human factor, improved examination efficiency widely, the shake phenomenon can not appear in the verification process, can guarantee the depth of parallelism of abrasive surface ruler and edge of a knife shape ruler effectively, improved the examination precision.
Description
Technical Field
The utility model relates to an accurate measurement technical field, more specifically relate to a edge of a knife shape ruler work edge is centre gripping positioner for straightness accuracy verification.
Background
The knife-edge-shaped ruler is a measuring instrument with a measuring surface in a knife-edge shape and used for measuring plane shape errors of workpieces, is widely applied to the field of flatness and straightness detection of flat plates, flat rulers, machine tool workbenches, guide rails and precision workpieces, has the advantages of simple structure, light weight, no rustiness, convenience in operation, high measuring efficiency and the like, is a measuring tool commonly used for machining, and mainly has the specifications of 75mm, 125mm, 175mm, 200mm, 225mm, 300mm, 400mm, 500mm and the like according to the length of a working edge of the measuring tool.
The detection basis of the knife-edge-shaped ruler is JJG 63-2007 'knife-edge-shaped ruler' detection regulation, the main detection item is the straightness of the working edge, the measurement is carried out by a light gap method, a light-transmitting gap is observed by human eyes, the width of the corresponding light gap is judged according to the visible light color, and therefore the qualitative analysis is carried out on the straightness of the working edge of the knife-edge-shaped ruler. According to the regulation requirement, the whole verification process uses a plurality of types of standard instruments and corollary equipment, the standard instruments and the corollary equipment need to be placed again in each verification, the standard clearance is long in construction and disassembly time, and the square ruler needs to be supported by hands when the verification is carried out, so that the detection result is easily influenced by human factors, manpower and time are wasted, and the verification efficiency is low. In addition, the parallelism of the grinding surface flat ruler below the knife-edge-shaped ruler and the knife-edge-shaped ruler can not be ensured during verification, the detection device is easily influenced by human factors, the human factors have great influence, the verification precision is not high, misjudgment is easy to occur, and the requirements of modern industrial development can not be completely met.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a knife edge shape ruler work edge straightness accuracy is examined and determine and is used clamping positioning device is provided, need the staff to support and receive the human factor influence easily to knife edge shape ruler when the straightness accuracy of solving current knife edge shape ruler work edge is examined and determine, it is low to examine and determine efficiency, examine and determine the problem that the precision is not high, in order to guarantee the depth of parallelism at examination in-process abrasive surface ruler and knife edge shape ruler, in order to realize the effective centre gripping to knife edge shape ruler, avoid the influence of human factor, in order to improve examination efficiency and examination precision.
In order to solve the technical problem, the utility model adopts the following technical proposal.
The clamping and positioning device for detecting the straightness of the working edge of the knife-edge-shaped ruler comprises a base plate and two positioning seats vertically arranged on the base plate, a grinding surface flat ruler used for supporting the knife-edge-shaped ruler is arranged between the two positioning seats, and the bottom end of the grinding surface flat ruler is limited and arranged on a leveling mechanism used for adjusting the flatness of the grinding surface flat ruler through a grinding surface flat ruler limiting structure; clamping mechanisms used for clamping and positioning the knife-edge-shaped ruler left and right are detachably arranged at the top ends of the opposite side walls of the two positioning seats.
Further optimize technical scheme, fixture is including fixed two pneumatic clamping jaws that set up on two positioning seat lateral walls and with the water flat line setting respectively, can dismantle respectively between the clamping jaw end of two pneumatic clamping jaws that set up with the water flat line and be connected with the grip block that is used for controlling the centre gripping location to the knife-edge shape ruler, has certain interval between the bottom face of grip block and the top face of abrasive surface flat ruler.
Further optimize technical scheme, leveling mechanism includes the leveling board of setting on the bottom plate through at least three leveling knob.
According to the technical scheme, the grinding surface flat ruler limiting structure comprises a plurality of pairs of grinding surface flat ruler limiting blocks which are connected and arranged on the top end face of the leveling plate.
According to the technical scheme, the bottom plate is further provided with a leveling plate limiting structure which is used for limiting the side wall of the leveling plate and observing whether the leveling plate is leveled.
Further optimize technical scheme, leveling board limit structure is including setting up on the bottom plate and the leveling board stopper that contacts with the leveling board lateral wall, has seted up U type spout on the leveling board stopper, wears to be equipped with in the U type spout with leveling board threaded connection and along the connecting bolt that U type spout reciprocated at the leveling in-process.
Due to the adoption of the technical scheme, the utility model has the following technical progress.
The utility model discloses pass through the spacing setting of mill face flat rule limit structure with the bottom of mill face flat rule on levelling mechanism to carry out centre gripping location effectively to edge of a knife shape ruler through fixture, make and need not people's hand and hold at the straightness accuracy verification process who carries out edge of a knife shape ruler work edge, avoided the influence of human factor, improved verification efficiency widely, the shake phenomenon can not appear in verification process, can guarantee the depth of parallelism of mill face flat rule and edge of a knife shape ruler effectively, the precision of examining and determine is improved.
The utility model discloses an at least three leveling knob will adjust the flat board setting on the bottom plate, can effectively guarantee the roughness of leveling board, abrasive surface flat ruler and edge of a knife shape ruler through the mode of three point leveling, has guaranteed the precision of examination.
The utility model discloses have certain interval between the bottom face of grip block and the top face of abrasive surface flat ruler, leave between grip block and the abrasive surface flat ruler promptly and be equipped with the detection clearance, the light of being convenient for can shine into from here, realizes the purpose of examination and determine.
The utility model discloses two grip blocks can realize the centre gripping through two pneumatic clamping jaws respectively and remove, and then carry out the centre gripping effectively with edge of a knife shape ruler.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of another perspective structure of the present invention;
FIG. 3 is a front view of the present invention;
fig. 4 is a top view of the present invention;
fig. 5 is a schematic structural diagram of the clamping mechanism of the present invention.
Wherein: 1. the device comprises a clamping mechanism 11, a pneumatic clamping jaw 12 and a clamping plate; 2. a grinding surface leveling ruler; 3. a base plate; 4. a leveling mechanism 41, a leveling plate 42 and a leveling knob; 5. a leveling plate limiting structure 51, a leveling plate limiting block 52 and a U-shaped sliding groove; 6. a grinding surface flat ruler limiting structure 61 and a grinding surface flat ruler limiting block; 7. positioning seats; 8. a knife edge-shaped ruler.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
A clamping and positioning device for detecting the straightness of a working edge of a knife-edge-shaped ruler is shown in a combined drawing 1-5 and comprises a base plate 3, a positioning seat 7, a grinding surface flat ruler 2, a grinding surface flat ruler limiting structure 6, a leveling mechanism 4 and a clamping mechanism 1.
The positioning seats 7 are arranged in two numbers and are vertically arranged on the bottom plate 3.
The grinding surface flat ruler 2 is arranged between the two positioning seats 7 and is used for supporting the knife edge-shaped straight ruler 8. The utility model provides an abrasive surface flat rule 2 adopts 500MM abrasive surface flat rule, as the etalon, and the working face plane degree is no longer than 0.5 mu m.
The bottom end of the grinding surface flat ruler 2 is arranged on the leveling mechanism 4 in a limiting mode through the grinding surface flat ruler limiting structure 6, and the leveling mechanism 4 is used for adjusting the flatness of the grinding surface flat ruler 2.
The grinding surface flat ruler limiting structure 6 comprises a plurality of pairs of grinding surface flat ruler limiting blocks 61 which are connected and arranged on the top end face of the leveling plate 41. The utility model discloses well be provided with two pairs of abrasive surface flat rule stoppers 61.
The clamping mechanism 1 is detachably arranged at the top ends of the opposite side walls of the positioning seat 7 and used for clamping and positioning the knife-edge-shaped straight ruler 8 left and right.
The clamping mechanism 1 comprises two pneumatic clamping jaws 11, and the two pneumatic clamping jaws 11 are respectively and fixedly arranged on the side walls of the two positioning seats 7 and are arranged on the same horizontal line. The pneumatic clamping jaw 11 is a common pneumatic finger in the prior art, and comprises an air cylinder and two parallel clamping jaws capable of being clamped in a centering manner under the action of the air cylinder, wherein the parallel clamping jaws are clamping jaw ends. The pneumatic clamping jaw 11 is connected with an air source through an air pipe, an electromagnetic valve is arranged on the air pipe, air supply for the pneumatic clamping jaw 11 is controlled through controlling the electromagnetic valve, and then opening and closing of the clamping jaw end are achieved.
And clamping plates 12 are detachably connected between the clamping jaw ends of two pneumatic clamping jaws 11 correspondingly arranged in the same horizontal line and are used for clamping and positioning the knife-edge-shaped ruler 8 left and right.
A certain distance is reserved between the bottom end face of the clamping plate 12 and the top end face of the grinding surface flat ruler 2, namely a detection gap is reserved between the clamping plate 12 and the grinding surface flat ruler 2, and light can conveniently shine into the space from the position.
The bottom plate 3 is further provided with a leveling plate limiting structure 5 for limiting the side wall of the leveling plate 41 and observing whether the leveling plate 41 is leveled.
Leveling board limit structure 5 is including setting up on bottom plate 3 and the leveling board stopper 51 that contacts with the side wall of leveling board 41, has seted up U type spout 52 on the leveling board stopper 51, wears to be equipped with connecting bolt in the U type spout 52, and connecting bolt and leveling board 41 threaded connection just along the connecting bolt that U type spout 52 reciprocated at the leveling in-process. Whether the leveling plates 41 are leveled can be judged by observing whether the positions of the connecting bolts on the leveling plate limiting blocks 51 are on the same straight line.
The utility model discloses carry out centre gripping location process as follows at tool setting mouth of a knife shape ruler.
First, the grinding surface flat 2 needs to be leveled. The levelness of the leveling plate 41 is adjusted by turning the leveling knob 42. In the adjusting process, the leveling plate 41 drives the connecting bolts to move up and down along the U-shaped sliding grooves 52 of the leveling plate limiting blocks 51, and whether the leveling plate 41 is leveled can be judged by observing whether the positions of all the connecting bolts are on the same straight line.
When all attachment bolt positions are observed to be in alignment, the knife-edge 8 is then placed on the abrasive surface flat 2 between the two clamping plates 12.
Then, the distance between the two clamping plates 12 is adjusted through the pneumatic clamping jaws 11, and the knife edge-shaped straight ruler 8 is firmly clamped and centered.
Claims (6)
1. Edge shape ruler work edge is centre gripping positioner for straightness accuracy examination, its characterized in that: the grinding surface leveling mechanism comprises a base plate (3) and two positioning seats (7) vertically arranged on the base plate (3), a grinding surface leveling ruler (2) used for supporting a knife edge-shaped ruler (8) is arranged between the two positioning seats (7), and the bottom end of the grinding surface leveling ruler (2) is limited and arranged on a leveling mechanism (4) used for adjusting the flatness of the grinding surface leveling ruler (2) through a grinding surface leveling ruler limiting structure (6); the top ends of the opposite side walls of the two positioning seats (7) are detachably provided with clamping mechanisms (1) used for clamping and positioning the knife edge-shaped ruler (8) left and right.
2. The clamping and positioning device for straightness verification of the working edge of the knife-edge-shaped ruler as claimed in claim 1, wherein: fixture (1) including fixed two pneumatic clamping jaw (11) that set up on two positioning seat (7) lateral walls and set up with the water flat line respectively, can dismantle respectively between the clamping jaw end of two pneumatic clamping jaw (11) that set up with the water flat line and be connected with grip block (12) that are used for controlling centre gripping location to knife edge shape ruler (8), have certain interval between the bottom face of grip block (12) and the top face of abrasive surface ruler (2).
3. The clamping and positioning device for straightness verification of the working edge of the knife-edge-shaped ruler as claimed in claim 1, wherein: the leveling mechanism (4) comprises a leveling plate (41) arranged on the base plate (3) through at least three leveling knobs (42).
4. The clamping and positioning device for straightness verification of the working edge of the knife-edge-shaped ruler as claimed in claim 3, wherein: the grinding surface flat rule limiting structure (6) comprises a plurality of pairs of grinding surface flat rule limiting blocks (61) which are connected and arranged on the top end face of the leveling plate (41).
5. The clamping and positioning device for straightness verification of the working edge of the knife-edge-shaped ruler as claimed in claim 3, wherein: the bottom plate (3) is further provided with a leveling plate limiting structure (5) which is used for limiting the side wall of the leveling plate (41) and can observe whether the leveling plate (41) is leveled.
6. The clamping and positioning device for straightness verification of the working edge of the knife-edge-shaped ruler as claimed in claim 5, wherein: leveling board limit structure (5) are including setting up leveling board stopper (51) that contacts on bottom plate (3) and with leveling board (41) lateral wall, have seted up U type spout (52) on leveling board stopper (51), wear to be equipped with in U type spout (52) with leveling board (41) threaded connection and at the leveling in-process along the connecting bolt that U type spout (52) reciprocated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020785730.8U CN211717403U (en) | 2020-05-13 | 2020-05-13 | Clamping and positioning device for straightness detection of working edge of knife-edge-shaped ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020785730.8U CN211717403U (en) | 2020-05-13 | 2020-05-13 | Clamping and positioning device for straightness detection of working edge of knife-edge-shaped ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211717403U true CN211717403U (en) | 2020-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020785730.8U Active CN211717403U (en) | 2020-05-13 | 2020-05-13 | Clamping and positioning device for straightness detection of working edge of knife-edge-shaped ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211717403U (en) |
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2020
- 2020-05-13 CN CN202020785730.8U patent/CN211717403U/en active Active
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