CN210024578U - Self-centering precise adjustable positioning mechanism - Google Patents
Self-centering precise adjustable positioning mechanism Download PDFInfo
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- CN210024578U CN210024578U CN201920822603.8U CN201920822603U CN210024578U CN 210024578 U CN210024578 U CN 210024578U CN 201920822603 U CN201920822603 U CN 201920822603U CN 210024578 U CN210024578 U CN 210024578U
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Abstract
The utility model belongs to the technical field of machining tools, in particular to a self-centering precise adjustable positioning mechanism, which can ensure that the requirement on the coaxiality of two ends is not too high aiming at the gap between the prior art hole and a positioning pin, but can hardly ensure the problem when the requirement on the coaxiality of two ends is below 0.05mm, the proposal is provided, which comprises a flower disc, a positioned part is movably arranged at the top of the flower disc, an inner hole is arranged on the inner wall of the positioned part, a positioning hole is arranged at the center position of the top of the flower disc, the positioning hole is of a conical structure, a thread is arranged on the inner wall of the positioning hole, a taper adjusting block is movably connected in the positioning hole, the taper adjusting block is of a conical structure, four T-shaped grooves with one side being opened are arranged at the top of the flower disc, T-shaped rack sliding blocks are all slidably arranged in the, the accurate positioning of holes with different diameters can be realized, and the positioned taper adjusting block can be fixed to prevent inversion.
Description
Technical Field
The utility model relates to a machining frock technical field especially relates to a from accurate adjustable positioning mechanism of centering.
Background
When the machining field relates to that a product needs to be turned around and the requirement on coaxiality of two ends is very high, one end is generally machined firstly, the tolerance of a certain size of an inner hole is reduced, and the inner hole is set as a technological size. The other end will be positioned with this process size hole as it is machined.
Gaps are formed between the existing process holes and the positioning pins, the coaxiality of two ends can be guaranteed without high requirement, but the coaxiality of the two ends is difficult to guarantee when the coaxiality of the two ends is required to be below 0.05 mm.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving and all can gapped between current fabrication hole and the locating pin, require not too high can guarantee to both ends axiality, nevertheless require the shortcoming that just has hardly guaranteed when below 0.05mm to both ends axiality, and the accurate adjustable positioning mechanism of centering certainly that provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a self-centering precise adjustable positioning mechanism comprises a faceplate, a positioned part is movably mounted at the top of the faceplate, an inner hole is formed in the inner wall of the positioned part, a positioning hole is formed in the center position of the top of the faceplate and is of a conical structure, threads are formed in the inner wall of the positioning hole, a taper adjusting block is movably connected in the positioning hole and is of a conical structure, four T-shaped grooves with openings at one sides are formed in the top of the faceplate, T-shaped rack sliding blocks are slidably mounted in the four T-shaped grooves, fixed stop blocks are movably mounted on the inner walls of the bottoms of the four T-shaped grooves, the fixed stop blocks and the inner walls of the bottoms of the corresponding T-shaped grooves are respectively in threaded connection with the same first inner hexagonal screw, a spring is fixedly mounted between one side of each T-shaped rack sliding block and one side of the corresponding fixed stop block, and an adjustable, two second hexagon socket head cap screws are in threaded connection between the adjustable positioning blocks and the corresponding T-shaped rack sliding blocks, the positioned part is matched with the four adjustable positioning blocks, and the four adjustable positioning blocks move outwards due to the four T-shaped rack sliding blocks, so that the inner hole of the positioned part is clamped, and precise positioning is realized.
Preferably, the bottom fixed mounting of tapering adjusting block has the lead screw, and the lead screw cooperatees with the inside screw thread of locating hole, and one side that T type rack sliding block is close to the tapering adjusting block sets up for the slope, and the T type rack sliding block of tapering adjusting block extrusion removes.
Preferably, the bottom of adjustable locating piece is provided with a plurality of triangle teeth, and the top of T type rack sliding block is provided with a plurality of triangular grooves, and triangle tooth cooperatees with the triangular groove that corresponds, and triangle tooth and triangular groove are connected, can ensure no sliding displacement, guarantee positioning accuracy.
Preferably, a fixed cavity has been seted up on the flower disc, and fixed intracavity rotates and installs the screw rod, and the dovetail groove has been seted up to the bottom in fixed cavity, and slidable mounting has a trapezoidal piece in the dovetail groove, and trapezoidal piece and screw rod threaded connection, trapezoidal groove restriction trapezoidal piece can only horizontal migration.
Preferably, a sliding hole is formed in the inner wall of the bottom of the positioning hole, a fixing rod is slidably mounted in the sliding hole, one end of an inclined rod is rotatably mounted at the bottom end of the fixing rod, the other end of the inclined rod is rotatably connected with the trapezoidal block, a plurality of fixing grooves are formed in the bottom of the taper adjusting block, the fixing rod is matched with the fixing grooves, the taper adjusting block is fixed, and the taper adjusting block is prevented from being inverted under the pressure of the spring.
In the utility model, the positioned part is placed on the top of the faceplate, the taper adjusting block is screwed, and the four adjustable positioning blocks move outwards due to the four T-shaped rack sliding blocks, so as to clamp the inner hole of the positioned part and realize the precise positioning;
due to the arrangement of the screw rod, the trapezoidal block and the inclined rod, the fixed rod moves upwards and enters the corresponding fixed groove to fix the taper adjusting block, so that the taper adjusting block is prevented from being reversed under the pressure of the spring;
the adjustable positioning blocks can be ensured to have no sliding displacement due to the triangular teeth and the triangular grooves, the positioning precision is ensured, the accurate positioning of holes with different diameters can be realized by replacing the adjustable positioning blocks, and the four adjustable positioning blocks are pushed to move outwards simultaneously by screwing the taper adjusting blocks, so that the automatic centering is realized.
The utility model discloses, realize automatic centering, can realize the accurate positioning in different diameter holes, can fix the location back tapering adjusting block, prevent to reverse.
Drawings
Fig. 1 is a schematic structural view of a self-centering precise adjustable positioning mechanism provided by the present invention;
fig. 2 is a schematic top view of the self-centering precise adjustable positioning mechanism of the present invention;
fig. 3 is the structural schematic diagram of a part a of a self-centering precise adjustable positioning mechanism provided by the present invention.
In the figure: the device comprises a faceplate 1, a fixed stop block 2, a first inner hexagon screw 3, a spring 4, a gear slide block 5T, an adjustable positioning block 6, a second inner hexagon screw 7, a taper adjusting block 8, a positioned part 9, a positioning hole 10, a fixing cavity 11, a screw 12, a trapezoidal block 13, an inclined rod 14, a fixing rod 15 and triangular teeth 16.
Detailed Description
The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments, but not all embodiments.
Example one
Referring to fig. 1-3, a self-centering precise adjustable positioning mechanism comprises a faceplate 1, a positioned part 9 is movably mounted at the top of the faceplate 1, an inner hole is formed on the inner wall of the positioned part 9, a positioning hole 10 is formed at the top center position of the faceplate 1, the positioning hole 10 is of a conical structure, threads are formed on the inner wall of the positioning hole 10, a taper adjusting block 8 is movably connected in the positioning hole 10, the taper adjusting block 8 is of a conical structure, four T-shaped grooves with openings at one sides are formed at the top of the faceplate 1, T-shaped rack sliding blocks 5 are respectively and slidably mounted in the four T-shaped grooves, fixed stop blocks 2 are respectively and movably mounted on the inner walls of the bottoms of the four T-shaped grooves, the same first inner hexagon screw 3 is respectively and threadedly connected on the inner walls of the bottoms of the fixed stop blocks 2 and the corresponding T-shaped grooves, and a spring 4 is fixedly mounted between, adjustable locating piece 6 is movably mounted at the top of T type rack sliding block 5, and threaded connection has two second socket head cap screws 7 between adjustable locating piece 6 and the T type rack sliding block 5 that corresponds, and part 9 and four adjustable locating pieces 6 cooperate to be located, owing to set up four T type rack sliding blocks 5, make four adjustable locating pieces 6 outwards remove to press from both sides the hole of part 9 to be located tightly, realize accurate positioning.
In this embodiment, the bottom fixed mounting of tapering adjusting block 8 has the lead screw, and the lead screw cooperatees with the inside screw thread of locating hole 10, and one side that T type rack sliding block 5 is close to tapering adjusting block 8 sets up for the slope, and tapering adjusting block 8 extrusion T type rack sliding block 5 removes.
In this embodiment, the bottom of adjustable locating piece 6 is provided with a plurality of triangle teeth 16, and the top of T type rack sliding block 5 is provided with a plurality of triangular grooves, and triangle tooth 16 cooperatees with the triangular groove that corresponds, and triangle tooth 16 and triangular groove are connected, can ensure no sliding displacement, guarantee positioning accuracy.
In this embodiment, seted up fixed chamber 11 on the flower disc 1, fixed 11 internal rotations in chamber are installed screw rod 12, and the dovetail groove has been seted up to the bottom in fixed chamber 11, and slidable mounting has trapezoidal piece 13 in the dovetail groove, and trapezoidal piece 13 and screw rod 12 threaded connection, trapezoidal groove restriction trapezoidal piece 13 can only horizontal migration.
In this embodiment, the sliding hole has been seted up on the bottom inner wall of locating hole 10, slidable mounting has dead lever 15 in the sliding hole, the bottom of dead lever 15 changes the one end of installing tilting lever 14, tilting lever 14's the other end rotates with trapezoidal piece 13 to be connected, a plurality of fixed slots have been seted up to the bottom of tapering adjusting block 8, dead lever 15 and fixed slot cooperate, dead lever 15 and fixed slot cooperation, it is fixed with tapering adjusting block 8, prevent that tapering adjusting block 8 from receiving the pressure of spring 4 and reversing.
Example two
Referring to fig. 1-3, a self-centering precise adjustable positioning mechanism comprises a faceplate 1, a positioned part 9 is movably mounted at the top of the faceplate 1, an inner hole is formed on the inner wall of the positioned part 9, a positioning hole 10 is formed at the top center position of the faceplate 1, the positioning hole 10 is of a conical structure, threads are formed on the inner wall of the positioning hole 10, a taper adjusting block 8 is movably connected in the positioning hole 10, the taper adjusting block 8 is of a conical structure, four T-shaped grooves with openings at one sides are formed at the top of the faceplate 1, T-shaped rack sliding blocks 5 are respectively and slidably mounted in the four T-shaped grooves, fixed stop blocks 2 are respectively and movably mounted on the inner walls of the bottoms of the four T-shaped grooves, the same first inner hexagon screw 3 is respectively and threadedly connected on the inner walls of the bottoms of the fixed stop blocks 2 and the corresponding T-shaped grooves, a spring 4 is welded between one side of the T, adjustable locating piece 6 is movably mounted at the top of T type rack sliding block 5, and threaded connection has two second socket head cap screws 7 between adjustable locating piece 6 and the T type rack sliding block 5 that corresponds, and part 9 and four adjustable locating pieces 6 cooperate to be located, owing to set up four T type rack sliding blocks 5, make four adjustable locating pieces 6 outwards remove to press from both sides the hole of part 9 to be located tightly, realize accurate positioning.
In this embodiment, the lead screw is installed through the welding in the bottom of tapering adjusting block 8, and the lead screw cooperatees with the inside screw thread of locating hole 10, and T type rack sliding block 5 is close to one side of tapering adjusting block 8 and sets up for the slope, and tapering adjusting block 8 extrudes T type rack sliding block 5 and removes.
In this embodiment, the bottom of adjustable locating piece 6 is provided with a plurality of triangle teeth 16, and the top of T type rack sliding block 5 is provided with a plurality of triangular grooves, and triangle tooth 16 cooperatees with the triangular groove that corresponds, and triangle tooth 16 and triangular groove are connected, can ensure no sliding displacement, guarantee positioning accuracy.
In this embodiment, seted up fixed chamber 11 on the flower disc 1, fixed 11 internal rotations in chamber are installed screw rod 12, and the dovetail groove has been seted up to the bottom in fixed chamber 11, and slidable mounting has trapezoidal piece 13 in the dovetail groove, and trapezoidal piece 13 and screw rod 12 threaded connection, trapezoidal groove restriction trapezoidal piece 13 can only horizontal migration.
In this embodiment, the sliding hole has been seted up on the bottom inner wall of locating hole 10, slidable mounting has dead lever 15 in the sliding hole, the bottom of dead lever 15 changes the one end of installing tilting lever 14, tilting lever 14's the other end rotates with trapezoidal piece 13 to be connected, a plurality of fixed slots have been seted up to the bottom of tapering adjusting block 8, dead lever 15 and fixed slot cooperate, dead lever 15 and fixed slot cooperation, it is fixed with tapering adjusting block 8, prevent that tapering adjusting block 8 from receiving the pressure of spring 4 and reversing.
In the embodiment, when the positioning device is used, firstly, the taper adjusting block 8 is arranged in the positioning hole 10 in the center of the bottom plate, a gap of 8-10mm is kept, the adjustable positioning block 6 is fixed on the corresponding T-shaped rack sliding block 5 through the second inner hexagon screw 7, the four groups of assembly positions are approximately the same, the four assembled T-shaped rack sliding blocks 5 are arranged in the corresponding T-shaped grooves, one side of the T-shaped rack sliding block 5 with inclination is tightly attached to the taper of the taper adjusting block 8, the fixed stop block 2 is fixed in the corresponding T-shaped groove through the first inner hexagon screw 3, the spring 4 is arranged, the positioned part 9 is placed at the top of the faceplate 1, the taper adjusting block 8 is screwed tightly, the taper adjusting block 8 extrudes the four T-shaped rack sliding blocks 5, the T-shaped rack sliding block 5 tightly pushes the corresponding spring 4, and drives the adjustable positioning block 6 to move outwards, thereby clamping the inner hole of the positioned part 9, realizing precise positioning, twisting the screw 12, the screw 12 driving the trapezoidal block 13 to move, because the inclined rod 14 is arranged, the fixed rod 15 moves upwards and enters the corresponding fixed groove, fixing the taper adjusting block 8, preventing the taper adjusting block 8 from reversing under the pressure of the spring 4, when the positioned part needs to be loosened, reversely twisting the screw 12, making the fixed rod 15 leave the corresponding fixed groove, reversely loosening the taper adjusting block 8, driving the adjustable positioning block 6 to move towards the center through the pressure of the spring 4, thereby loosening the inner hole of the positioned part 9, wherein the T-shaped rack sliding block 5 is connected with the adjustable positioning block 6 through the triangular teeth 16 and the triangular grooves, ensuring no sliding displacement and positioning precision, realizing precise positioning of holes with different diameters by replacing the adjustable positioning block 6, and tightening the taper adjusting block 8, the taper adjusting block 8 pushes the four adjustable positioning blocks 6 to move outwards at the same time, so that automatic centering is realized.
The above descriptions are only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to, replaced or changed.
Claims (5)
1. A self-centering precise adjustable positioning mechanism comprises a faceplate (1), wherein the top of the faceplate (1) is movably provided with a positioned part (9), and the inner wall of the positioned part (9) is provided with an inner hole, the self-centering precise adjustable positioning mechanism is characterized in that the top of the faceplate (1) is provided with a positioning hole (10), the positioning hole (10) is of a conical structure, the inner wall of the positioning hole (10) is provided with a thread, the positioning hole (10) is internally and movably connected with a taper adjusting block (8), the taper adjusting block (8) is of a conical structure, the top of the faceplate (1) is provided with four T-shaped grooves with one side provided with an opening, four T-shaped groove inner grooves are internally and slidably provided with T-shaped rack sliding blocks (5), the inner walls at the bottoms of the four T-shaped grooves are respectively and movably provided with fixed stop blocks (2), the fixed stop blocks (2) and the inner walls at, a spring (4) is fixedly installed between one side of each T-shaped gear sliding block (5) and one side of each corresponding fixed stop block (2), an adjustable positioning block (6) is movably installed at the top of each T-shaped gear sliding block (5), two second inner hexagonal screws (7) are connected between each adjustable positioning block (6) and the corresponding T-shaped gear sliding block (5) in a threaded mode, and positioned parts (9) are matched with the four adjustable positioning blocks (6).
2. The self-centering precise adjustable positioning mechanism as claimed in claim 1, wherein a lead screw is fixedly installed at the bottom of the taper adjusting block (8), the lead screw is matched with the thread inside the positioning hole (10), and one side of the T-shaped rack sliding block (5) close to the taper adjusting block (8) is arranged in an inclined manner.
3. The self-centering precise adjustable positioning mechanism as claimed in claim 1, wherein the bottom of the adjustable positioning block (6) is provided with a plurality of triangular teeth (16), the top of the T-shaped rack sliding block (5) is provided with a plurality of triangular grooves, and the triangular teeth (16) are matched with the corresponding triangular grooves.
4. The self-centering precise adjustable positioning mechanism according to claim 1, characterized in that a fixing cavity (11) is formed in the faceplate (1), a screw (12) is rotatably mounted in the fixing cavity (11), a trapezoidal groove is formed in the bottom of the fixing cavity (11), a trapezoidal block (13) is slidably mounted in the trapezoidal groove, and the trapezoidal block (13) is in threaded connection with the screw (12).
5. The self-centering precise adjustable positioning mechanism according to claim 1, wherein a sliding hole is formed in the inner wall of the bottom of the positioning hole (10), a fixing rod (15) is slidably mounted in the sliding hole, one end of an inclined rod (14) is rotatably mounted at the bottom end of the fixing rod (15), the other end of the inclined rod (14) is rotatably connected with the trapezoidal block (13), a plurality of fixing grooves are formed in the bottom of the taper adjusting block (8), and the fixing rod (15) is matched with the fixing grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920822603.8U CN210024578U (en) | 2019-06-03 | 2019-06-03 | Self-centering precise adjustable positioning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920822603.8U CN210024578U (en) | 2019-06-03 | 2019-06-03 | Self-centering precise adjustable positioning mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN210024578U true CN210024578U (en) | 2020-02-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920822603.8U Active CN210024578U (en) | 2019-06-03 | 2019-06-03 | Self-centering precise adjustable positioning mechanism |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111716206A (en) * | 2020-06-11 | 2020-09-29 | 安徽省含山县兴建铸造厂 | Remodeling and reconstruction process for rusty damper |
| CN113618350A (en) * | 2020-05-07 | 2021-11-09 | 富鼎电子科技(嘉善)有限公司 | Material grabbing and mounting equipment and method |
-
2019
- 2019-06-03 CN CN201920822603.8U patent/CN210024578U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113618350A (en) * | 2020-05-07 | 2021-11-09 | 富鼎电子科技(嘉善)有限公司 | Material grabbing and mounting equipment and method |
| CN111716206A (en) * | 2020-06-11 | 2020-09-29 | 安徽省含山县兴建铸造厂 | Remodeling and reconstruction process for rusty damper |
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