CN114102476B - Four-side centering positioning mechanism and centering positioning method thereof - Google Patents
Four-side centering positioning mechanism and centering positioning method thereof Download PDFInfo
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- CN114102476B CN114102476B CN202111501432.7A CN202111501432A CN114102476B CN 114102476 B CN114102476 B CN 114102476B CN 202111501432 A CN202111501432 A CN 202111501432A CN 114102476 B CN114102476 B CN 114102476B
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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Abstract
The application discloses a four-side centering positioning mechanism and a centering positioning method thereof, wherein the four-side centering positioning mechanism comprises: the tool mounting base comprises an upper bottom plate, a lower bottom plate and four supporting shafts therebetween, wherein a groined sliding groove is formed in the upper surface of the upper bottom plate, the groined sliding groove comprises two X-direction sliding grooves and Y-direction sliding grooves which are vertically communicated with each other, and two ends of each X-direction sliding groove and each Y-direction sliding groove are respectively provided with a positioning hole; the pneumatic element assembly comprises four air cylinders, each air cylinder drives two pushing rods, and each pushing rod is positioned by a positioning hole of the upper bottom plate; the positioning pushing assembly is arranged on the upper bottom plate and comprises eight positioning clamps positioned in the groined-shaped sliding groove, the front end of each positioning clamp is provided with a pushing block, the rear end of each positioning clamp is provided with a guide wheel, the Z-directional force synchronously output by the four cylinders is transmitted to the positioning clamp through the guide wheels to form X-Y-directional force transmission, the pushing blocks on the positioning clamps push products positioned in the central area of the upper bottom plate in the positive and negative X-Y directions, and the simultaneous positioning and centering of the positive and negative X-Y axes on the central point of the products are realized.
Description
Technical Field
The invention relates to the technical field of mechanical equipment, in particular to a four-side centering positioning mechanism and a centering positioning method thereof.
Background
There are many devices in an automated production line that require centering and positioning systems, such as automated dispensing systems, bonding rack systems, and the like. In the automatic production process, most positioning devices push and position in a single direction and a single dimension boundary; the X-axis direction positioning and the Y-axis direction positioning are completed sequentially.
At present, the traditional X-Y axis centering positioning equipment can meet the requirements of most products, has high upper limit of precision and is suitable for most of the products which are known to be produced automatically. However, conventional positioning centering systems have the following disadvantages: (1) In the action of pushing and positioning in one direction of an X or Y axis, the condition that the origin of the center of the product is not movable cannot be met; (2) When the boundary is not unique or more than one product boundary needs to be centered and positioned at the same time, the traditional equipment cannot perform; (3) The pushing action directly driven by the pneumatic or electric original paper has small controllable space of precision and force in the short-range operation process, and is easy to damage products with soft or fragile materials.
Disclosure of Invention
The invention aims to provide a four-side centering positioning mechanism and a centering positioning method thereof, which are used for solving the problems in the technical background.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the four-side centering positioning mechanism and the centering positioning method thereof are preferably applied to axisymmetric materials with non-single boundaries needing multi-level positioning, namely, the upper part and the lower part of the product need to be centered and positioned simultaneously.
The first aspect of the present application provides a four-sided centering positioning mechanism, comprising:
The tool mounting base comprises an upper bottom plate, a lower bottom plate and four supporting shafts arranged between the upper bottom plate and the lower bottom plate; the upper surface of the upper bottom plate is provided with a groined sliding groove, the groined sliding groove comprises two X-direction sliding grooves and Y-direction sliding grooves which are mutually and vertically communicated, and two ends of each X-direction sliding groove and each Y-direction sliding groove are respectively provided with a positioning hole;
the pneumatic element assembly is arranged between the upper bottom plate and the lower bottom plate and comprises a first pneumatic pushing unit and a second pneumatic pushing unit; the first pneumatic pushing unit comprises two X-direction pushing supporting rods which are arranged in parallel along the X direction, the bottom of each X-direction pushing supporting rod is fixedly connected with a first cylinder, and the first cylinder drives the first cylinder to move up and down; the second pneumatic pushing unit comprises two Y-direction pushing support rods which are arranged above the two X-direction pushing support rods and are arranged in parallel along the Y direction, and the bottom of each Y-direction pushing support rod is fixedly connected with a second cylinder and is driven by the second cylinder to move up and down; two ends of each X-direction pushing supporting rod and each Y-direction pushing supporting rod are provided with a Z-direction pushing rod, the pushing rods penetrate through the positioning holes from bottom to top, and the top end of each pushing rod is provided with an inclined plane; the two Y-direction pushing support rods are positioned between the pushing rods of the two X-direction pushing support rods; the two first cylinders are fixedly arranged on the lower bottom plate, the two second cylinders are fixedly arranged on the lower bottom plate through a mounting seat, and the mounting seat is positioned between the two first cylinders;
The positioning pushing assembly is arranged on the upper bottom plate and comprises eight positioning clamps which are connected in the groined-shaped sliding groove in a sliding mode and are in one-to-one correspondence with the eight pushing rods, a pushing block is arranged at the front end of each positioning clamp, which faces the center of the upper bottom plate, a rectangular positioning groove is formed in each pushing block in a surrounding mode, a guide wheel is arranged at the tail end, far away from the center of the upper bottom plate, of each positioning clamp, the guide wheel faces the inclined surface of the corresponding pushing rod, and the positioning clamps slide towards the central area of the upper bottom plate along the groined-shaped sliding groove under the pushing of the pushing rod.
Preferably, the two first cylinders and the two second cylinders work in a linkage way, and output is synchronous.
Preferably, each positioning hole is fixedly provided with a shaft sleeve, the push rod is slidably arranged in the shaft sleeve in a penetrating manner, the diameter of the shaft sleeve is smaller than that of the positioning hole, the outer peripheral surface of the upper end of the shaft sleeve protrudes outwards along the radial direction to form an annular blocking edge, the annular blocking edge is blocked at the outer side of the positioning hole, and the top end of the push rod with an inclined plane is exposed out of the annular blocking edge.
Preferably, the height of the pushing rod of the first pneumatic pushing unit is larger than that of the pushing rod of the second pneumatic pushing unit, and the upper end surfaces of all pushing rods are on the same horizontal plane.
Preferably, the height of each locating clip is not greater than the height of the groined runner.
Preferably, the locating clip is a sliding block with an inclined surface at one side, a groove is arranged on the inclined surface, the guide wheel is rotationally connected in the groove, and the wheel surface of the guide wheel protrudes out of the inclined surface and is positioned at the edge of the locating hole.
Preferably, each pushing block is higher than the upper surface of the positioning clamp, a product carrier is arranged in a rectangular positioning groove surrounded by each pushing block, the product carrier comprises two rectangular blocks, the two rectangular blocks are respectively embedded in two adjacent grooves along the Y direction of a central lug of the groined chute, the upper surfaces of the two rectangular blocks are flush, and the upper surfaces of the rectangular blocks are not lower than the upper surface of the central lug of the groined chute.
Preferably, the pushing block comprises a main body part longitudinally arranged on the upper surface of the locating clamp, and extension parts extending from the upper surface of the main body part along the direction perpendicular to the moving direction of the locating clamp, wherein the extension parts of two adjacent locating clamps sliding in the same direction are oppositely arranged and are stacked and distributed in the Z direction.
More preferably, the extensions of two adjacent locating clips that slide in the same direction are spaced from each other in the Z-direction.
More preferably, the extensions of two adjacent locating clips that slide in the same direction are attached to each other in the Z-direction.
Preferably, the positioning pushing assembly further comprises four pressing blocks, and the four pressing blocks are arranged on the upper bottom plate to form a rectangle; wherein, every briquetting is located the top of two locating clips of equidirectional slip, and two sliding grooves that hold the leading wheel rotation and pass are seted up to the bottom of every briquetting.
More preferably, the four pressing blocks have identical structures and are all rectangular strip structures.
The second aspect of the present application provides a centering and positioning method of a four-sided centering and positioning mechanism, comprising:
placing the product in a rectangular positioning groove surrounded by eight pushing blocks in a positioning pushing assembly;
the two first cylinders and the two second cylinders synchronously run to drive the eight push rods to longitudinally move upwards in the positioning holes of the upper bottom plate;
The inclined planes at the top ends of the eight pushing rods are simultaneously abutted against the wheel surfaces of the guide wheels at the tail ends of the corresponding positioning clamps, and each inclined plane pushes the corresponding guide wheel to push each positioning clamp to synchronously approach the central area of the upper bottom plate along the groined-shaped sliding groove, and a pushing block arranged at the front end of each positioning clamp pushes a product to realize positioning centering of the product X, Y.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
(1) The device realizes the simultaneous positioning and centering of the positive and negative X-Y axes to the center point of the product, and realizes the center alignment under the condition of ensuring the positioning precision, so that the device can adapt to the product positioning and centering with different boundary sizes and tolerances.
(2) The equipment cylinder driving direction is set to be output in the Z-axis direction, the increase of the product size and the cylinder stroke can not be accumulated, the space occupation under the same height is reduced, and the space utilization rate is greatly improved when a larger product or a cylinder with larger power is replaced.
(3) The device uses the guide wheel to push the air cylinder to be converted into an X-Y axis from a Z axis, so that the precision is improved, and meanwhile, the moving stroke of the positioning clamp is not controlled by the air cylinder any more, but is in a preset moving range.
(4) The device uses the pushing blocks with adjustable size and height to push the materials of different levels of the product, can realize synchronous positioning and centering of the materials with different sizes and tolerances, and is suitable for axisymmetric products with various shapes in a certain size.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 is a schematic diagram of a product corresponding to a four-sided centering positioning mechanism of the present application;
FIG. 2 is a schematic view of the overall structure of the four-sided centering positioning mechanism of the present application;
FIG. 3 is a schematic structural view of a tooling mounting base;
FIG. 4 is a schematic view of the structure of the upper surface of the upper bottom surface of the tooling mounting base;
FIG. 5 is a schematic structural view of a pneumatic element assembly;
FIG. 6 is a schematic view of a pneumatic element assembly from another perspective;
FIG. 7 is a schematic view of a first pneumatic jack unit in the pneumatic component assembly;
FIG. 8 is a schematic diagram of a second pneumatic ejection unit in the pneumatic element assembly;
FIG. 9 is a schematic view of a positioning pushing assembly;
FIG. 10 is a view of one use state of the positioning push assembly (with product);
FIG. 11 is a state diagram of one use of the positioning push assembly (without product);
FIG. 12 is a schematic view of a structure of a locating clip;
FIG. 13 is a schematic view of the structure of the ejector pin when it is in contact with the retainer clip;
FIG. 14 is a state diagram of the use of the pneumatic element assembly with eight locating clips.
Legend description:
1. a product; 101. an upper layer of the product; 102. a lower layer of the product;
2. a tooling mounting base; 201. a lower base plate; 202. a support shaft; 203. an upper base plate; 204. positioning holes;
3. A pneumatic element assembly; 31. a first pneumatic pushing unit; 3101. pushing the supporting rod in the X direction; 3102. a first cylinder A; 3103. a first cylinder B;3104; a first push rod; 3105; a first sleeve; 32. a second pneumatic pushing unit; 3201. y-direction pushing supporting rods; 3202. a second cylinder A; 3203. a second cylinder B; 3204. a second push rod; 3205. a second sleeve; 3206. a mounting base;
4. positioning the pushing component; 41. a positioning clamp; 4101. a guide wheel; 4102. an inclined surface; 42. a product carrier; 43. briquetting; 4301. a sliding groove; 44. pushing the block.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and more obvious, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
It is noted that the terms "first," "second," and the like in the description and claims of the present invention and in the foregoing figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order, and it is to be understood that the data so used may be interchanged where appropriate. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Examples:
fig. 1 is a schematic structural diagram of a product corresponding to the four-sided centering positioning mechanism of the present application.
As shown in fig. 1, the product 1 for centering is divided into upper and lower parts, namely an upper product layer 101 and a lower product layer 102. Because the requirements of the production process and the application direction are different, the tolerance of the upper part and the lower part of the product 1 in the X direction and the Y direction is obviously different, and the product 1 is required to be positioned in a centering way in the X-Y axis double-axis direction. Therefore, the four-side centering positioning mechanism uses double-layer centering positioning with adjustable size, the positioning clamp is connected by the pushing block with adjustable position, and the two layers and four directions are simultaneously pushed to perform centering positioning. In fig. 1, eight arrows represent the directions and positions of the eight positioning clips and the pushing blocks, respectively.
Fig. 2 is a schematic diagram of the overall structure of a four-sided centering positioning mechanism. As shown in fig. 2, the four-sided centering positioning mechanism of the application comprises a tool mounting base 2, a pneumatic element assembly 3 and a positioning pushing assembly 4. The following description will be made separately.
Fig. 3 and 4 are schematic structural views of the fixture mounting base 2.
As shown in fig. 3, the fixture mounting base 2 includes an upper base plate 203, a lower base plate 201, and four support shafts 202 provided between the upper base plate 203 and the lower base plate 201. The lower bottom plate 201 is mainly used for installing the pneumatic element assembly 3, supporting shafts and connecting and fixing with the whole work station; the upper base plate 203 is used for positioning the push rod, the positioning pushing assembly 4 and the product carrier 42, and the supporting shaft 202 is used for connecting and fixing the upper base plate 203 and the lower base plate 201. As shown in fig. 4, the upper surface of the upper bottom plate 203 is provided with a groined-shaped chute, the groined-shaped chute comprises two X-direction chute and Y-direction chute which are mutually vertically communicated, and two ends of each of the X-direction chute and the Y-direction chute are respectively provided with a positioning hole 204.
Fig. 5 to 8 are schematic structural views of the pneumatic element assembly 3.
As shown in fig. 5 and 6, the pneumatic element assembly 3 is disposed between the upper base plate 203 and the lower base plate 201, and is composed of four independent cylinders, and the four cylinders work in a linkage manner and output is synchronous. Each cylinder is provided with two push rods for power output in one direction of positive and negative X-Y axes, and each push rod is positioned by a positioning hole 204 on the upper base plate 203.
Specifically, the pneumatic element assembly 3 includes a first pneumatic pushing unit 31 and a second pneumatic pushing unit 32.
Referring to fig. 7, the first pneumatic pushing unit 31 includes two X-direction pushing support rods 3101 disposed in parallel along the X-direction, and a first cylinder (a first cylinder a 3102 and a first cylinder B3103 respectively) is fixedly connected to the bottom of each X-direction pushing support rod 3101 and is driven by the first cylinder to move up and down. Two first cylinders are fixedly arranged on the lower base plate 201.
Referring to fig. 8, the second pneumatic pushing unit 32 includes two Y-direction pushing support rods 3201 disposed above the two X-direction pushing support rods 3101 and parallel to each other along the Y-direction, and a second cylinder (a second cylinder a3202 and a second cylinder B3203 respectively) is fixedly connected to the bottom of each Y-direction pushing support rod 3201 and is driven by the second cylinder to move up and down. The two second cylinders are fixedly disposed on the lower base plate 201 through a mounting seat 3206, and the mounting seat 3206 is located between the two first cylinders. The mounting positions of the two second cylinders are raised through the mounting seats 3206, so that interference between the cylinders in two directions X, Y can be prevented.
The two ends of each of the X-direction pushing support rod 3101 and the Y-direction pushing support rod 3201 are provided with a Z-direction pushing rod, wherein the pushing rods at the two ends of the X-direction pushing support rod 3101 are first pushing rods 3104, the pushing rods at the two ends of the Y-direction pushing support rod 3201 are second pushing rods 3204, the height of the first pushing rod 3104 is greater than that of the second pushing rod 3204, and the upper end surfaces of all pushing rods are on the same horizontal plane. The pushing rods pass through the positioning holes 204 from bottom to top, and the top end of each pushing rod is provided with an inclined plane; two Y-direction pushing support bars 3201 are located between four first pushing bars 3104. Each positioning hole 204 is also fixedly provided with a shaft sleeve, and the push rod is slidably arranged in the shaft sleeve in a penetrating manner, and the shaft sleeve has a guiding function on the push rod. The diameter of the shaft sleeve is smaller than that of the positioning hole 204, the outer peripheral surface of the upper end of the shaft sleeve protrudes outwards along the radial direction to form an annular blocking edge, the annular blocking edge is blocked at the outer side of the positioning hole 204, and the top end of the push rod with an inclined plane is exposed out of the annular blocking edge. The sleeves through which all the first push rods 3104 pass are first sleeves 3105, the sleeves through which all the second push rods 3204 pass are second sleeves 3205, and the length of the first sleeves 3105 is greater than that of the second sleeves 3205.
Fig. 9 is a schematic structural view of the positioning pushing assembly 4. The positioning pushing component 4 is driven by an air cylinder to move along the positive and negative directions of the X-Y axis, so as to push the product 1 to realize positioning and centering. Wherein the product 1 generally corresponds to an axisymmetrically shaped material requiring a non-single boundary of multi-level positioning, i.e. the upper and lower parts of such product 1 need to be positioned simultaneously in a centered manner.
As shown in fig. 9, the positioning pushing assembly 4 is disposed on the upper base 203, and includes a product carrier 42 disposed on the upper base 203, and eight positioning clips 41 slidably connected in the groined chute.
Specifically, as shown in fig. 10 to 14, eight positioning clips 41 are in one-to-one correspondence with eight push rods. An independent pushing block 44 is arranged at the front end of each locating clip 41 facing the central area of the upper bottom plate 203, a rectangular locating groove is formed by surrounding each pushing block 44, the locating groove is used for placing the product 1, and the locating clips 41 are contacted with the product 1 through the pushing blocks 44. The tail end of each positioning clamp 41 far away from the central area of the upper base plate 203 is provided with a guide wheel 4101, the axis of the guide wheel 4101 is perpendicular to the axis of the push rod, the guide wheel 4101 faces the inclined plane of the corresponding push rod, the guide wheel 4101 is used for converting the Z-axis force output by the air cylinder into the X-Y-axis force, and the positioning clamp 41 slides towards the central area of the upper base plate 203 along the groined sliding groove under the pushing of the push rod.
Fig. 13 is a schematic structural view of the positioning clip 41. The positioning clamp 41 is a slider with an inclined surface 4102 at one side, the inclined surface 4102 is provided with a groove, the guide wheel 4101 is rotatably connected in the groove, and the wheel surface of the guide wheel 4101 protrudes out of the inclined surface 4102 and is positioned at the edge of the positioning hole 204. The height of each locating clip 41 is not greater than the height of the groined runner.
Each pushing block 44 is higher than the upper surface of the positioning clamp 41, and a product carrier 42 is disposed in a rectangular positioning groove surrounded by each pushing block 44, where the product carrier 42 is used for positioning the lower product material. The product carrier 42 includes two rectangular blocks, the two rectangular blocks are respectively embedded in two adjacent grooves along the Y direction (see fig. 9) of the central protruding block of the groined-shaped chute, the upper surfaces of the two rectangular blocks are flush, and the upper surfaces of the rectangular blocks are not lower than the upper surfaces of the central protruding blocks of the groined-shaped chute.
The pushing block 44 includes a main body portion longitudinally mounted on the upper surface of the positioning clip 41, and an extension portion extending from the upper surface of the main body portion along a direction perpendicular to the moving direction of the positioning clip 41, where the extension portions of two adjacent positioning clips 41 sliding in the same direction are oppositely disposed and stacked in the Z direction. The extending portions of two adjacent positioning clips 41 sliding in the same direction may have a gap therebetween in the Z direction, or may be attached to each other in the Z direction. The pushing blocks 44 can change the design according to the dimensional change of the product 1, and the two pushing blocks 44 in one of the positive and negative X-Y directions are respectively responsible for positioning the upper layer and the lower layer of materials.
In a preferred embodiment, the positioning pushing assembly 4 further includes four pressing blocks 43 (see fig. 9), and the four pressing blocks 43 are identical in structure and are all rectangular strip structures. Four pressing blocks 43 are arranged on the upper bottom plate 203 to form a rectangle. Wherein, each pressing block 43 is located above two locating clips 41 sliding in the same direction, and two sliding grooves 4301 for accommodating the guide wheels 4101 to rotate are formed at the bottom of each pressing block 43. In the application, eight positioning clamps 41 are respectively positioned in the groined sliding grooves of the upper base plate 203 and are fixed by four pressing blocks 43 with sliding grooves 4301, so that the relative heights of the positioning clamps 41 are consistent, and the sliding directions are free from deviation.
The centering and positioning process of the four-side centering and positioning mechanism specifically comprises the following steps:
step 1, eight pushing blocks 44 in the positioning pushing assembly 4 are surrounded to form rectangular positioning grooves, two rectangular blocks are embedded in a groined chute in the positioning grooves to form a product carrier, and a product 1 is placed on the product carrier;
step 2, two first cylinders and two second cylinders run synchronously, and eight push rods are driven to longitudinally move upwards in the positioning holes 204 of the upper base plate 203;
Step 3, the inclined planes at the top ends of the eight pushing rods simultaneously abut against the wheel surfaces of the guide wheels 4101 at the tail ends of the corresponding positioning clamps 41, and each inclined plane pushes the corresponding guide wheel 4101 so as to push each positioning clamp 41 to synchronously draw close to the central area of the upper base plate 203 along the groined chute, and the pushing blocks 44 arranged at the front ends of each positioning clamp 41 push the product 1, so that the positioning centering of the product 1X, Y is realized.
In the above, the four cylinders are operated synchronously, so that the eight positioning clamps 41 in four directions are moved synchronously, and the relative displacement difference is kept to be zero.
In summary, the four-side centering positioning mechanism provided by the application realizes the simultaneous positioning and centering of the positive and negative X-Y axes to the center point of the product, and realizes the center alignment under the condition of ensuring the positioning accuracy, so that the four-side centering positioning mechanism can adapt to the product positioning and centering with different boundary sizes and tolerances. In the application, the driving direction of the air cylinder is set to be output in the Z-axis direction, the increase of the product size and the air cylinder stroke can not be accumulated, the space occupation at the same height is reduced, and the space utilization rate is greatly improved when the air cylinder with larger product or larger power is replaced. According to the application, the guide wheel is used for converting the air cylinder pushing from the Z axis to the X-Y axis, so that the precision is improved, and meanwhile, the moving stroke of the positioning clamp is not controlled by the air cylinder any more, but is in a preset moving range. The application uses the pushing blocks with adjustable size and height to push the materials of different layers of the product, can realize the synchronous positioning and centering of the materials with different sizes and tolerances, and is suitable for axisymmetric products with various shapes in a certain size.
The above description of the specific embodiments of the present invention has been given by way of example only, and the present invention is not limited to the above described specific embodiments. Any equivalent modifications and substitutions for the present invention will occur to those skilled in the art, and are also within the scope of the present invention. Accordingly, equivalent changes and modifications are intended to be included within the scope of the present invention without departing from the spirit and scope thereof.
Claims (9)
1. A four-sided centering positioning mechanism, comprising:
The tool mounting base comprises an upper bottom plate, a lower bottom plate and four supporting shafts arranged between the upper bottom plate and the lower bottom plate; the upper surface of the upper bottom plate is provided with a groined sliding groove, the groined sliding groove comprises two X-direction sliding grooves and Y-direction sliding grooves which are mutually and vertically communicated, and two ends of each X-direction sliding groove and each Y-direction sliding groove are respectively provided with a positioning hole;
the pneumatic element assembly is arranged between the upper bottom plate and the lower bottom plate and comprises a first pneumatic pushing unit and a second pneumatic pushing unit; the first pneumatic pushing unit comprises two X-direction pushing supporting rods which are arranged in parallel along the X direction, the bottom of each X-direction pushing supporting rod is fixedly connected with a first cylinder, and the first cylinder drives the first cylinder to move up and down; the second pneumatic pushing unit comprises two Y-direction pushing support rods which are arranged above the two X-direction pushing support rods and are arranged in parallel along the Y direction, and the bottom of each Y-direction pushing support rod is fixedly connected with a second cylinder and is driven by the second cylinder to move up and down; two ends of each X-direction pushing supporting rod and each Y-direction pushing supporting rod are provided with a Z-direction pushing rod, the pushing rods penetrate through the positioning holes from bottom to top, and the top end of each pushing rod is provided with an inclined plane; the two Y-direction pushing support rods are positioned between the pushing rods of the two X-direction pushing support rods; the two first cylinders are fixedly arranged on the lower bottom plate, the two second cylinders are fixedly arranged on the lower bottom plate through a mounting seat, and the mounting seat is positioned between the two first cylinders;
The positioning pushing assembly is arranged on the upper bottom plate and comprises eight positioning clamps which are connected in the groined-shaped sliding groove in a sliding manner, the eight positioning clamps correspond to the eight pushing rods one by one, a pushing block is arranged at the front end of each positioning clamp, which faces the center of the upper bottom plate, a rectangular positioning groove is formed in a surrounding mode of each pushing block, a guide wheel is arranged at the tail end of each positioning clamp, which is far away from the center of the upper bottom plate, and faces the inclined surface of the corresponding pushing rod, and the positioning clamps slide towards the center area of the upper bottom plate along the groined-shaped sliding groove under the pushing of the pushing rod;
The pushing block comprises a main body part longitudinally arranged on the upper surface of the locating clamp, and extension parts extending along the moving direction perpendicular to the locating clamp from the upper surface of the main body part, wherein the extension parts of two adjacent locating clamps sliding in the same direction are oppositely arranged and are stacked and distributed in the Z direction.
2. A four-sided centering mechanism as claimed in claim 1, wherein the two first cylinders and the two second cylinders operate in tandem and are output in synchronism.
3. The four-sided centering positioning mechanism according to claim 1, wherein each positioning hole is fixedly provided with a shaft sleeve, the push rod is slidably arranged in the shaft sleeve in a penetrating manner, the diameter of the shaft sleeve is smaller than that of the positioning hole, the outer peripheral surface of the upper end of the shaft sleeve protrudes outwards in the radial direction to form an annular blocking edge, the annular blocking edge is blocked at the outer side of the positioning hole, and the top end of the push rod with an inclined plane is exposed out of the annular blocking edge.
4. The four-sided centering and positioning mechanism according to claim 1, wherein the height of the ejector pins of the first pneumatic pushing unit is greater than the height of the ejector pins of the second pneumatic pushing unit, and the upper end surfaces of all the ejector pins are on the same horizontal plane.
5. The four-sided centering positioning mechanism according to claim 1, wherein the positioning clamp is a sliding block with an inclined surface at one side, a groove is arranged on the inclined surface, the guide wheel is rotatably connected in the groove, and the wheel surface of the guide wheel protrudes out of the inclined surface and is positioned at the edge of the positioning hole; the height of each locating clip is not greater than the height of the groined sliding groove.
6. The four-sided centering positioning mechanism of claim 1, wherein each pushing block is higher than the upper surface of the positioning clamp, a product carrier is arranged in a rectangular positioning groove surrounded by each pushing block, the product carrier comprises two rectangular blocks, the two rectangular blocks are respectively embedded in two adjacent grooves of the central lug of the groined chute along the Y direction, the upper surfaces of the two rectangular blocks are flush, and the upper surfaces of the rectangular blocks are not lower than the upper surfaces of the central lugs of the groined chute.
7. A four-sided centering mechanism as claimed in claim 1, wherein the extensions of two adjacent clips that slide in the same direction are spaced apart in the Z-direction; or the extending parts of two adjacent locating clamps sliding in the same direction are attached to each other in the Z direction.
8. The four-sided centering and positioning mechanism as claimed in claim 1, wherein said positioning pushing assembly further comprises four press blocks disposed on said upper base plate to define a rectangle; wherein, every briquetting is located the top of two locating clips of equidirectional slip, and two sliding grooves that hold the leading wheel rotation and pass are seted up to the bottom of every briquetting.
9. A centering method of a four-sided centering mechanism as claimed in claim 1, comprising:
placing the product in a rectangular positioning groove surrounded by eight pushing blocks in a positioning pushing assembly;
the two first cylinders and the two second cylinders synchronously run to drive the eight push rods to longitudinally move upwards in the positioning holes of the upper bottom plate;
The inclined planes at the top ends of the eight pushing rods are simultaneously abutted against the wheel surfaces of the guide wheels at the tail ends of the corresponding positioning clamps, and each inclined plane pushes the corresponding guide wheel to push each positioning clamp to synchronously approach the central area of the upper bottom plate along the groined-shaped sliding groove, and a pushing block arranged at the front end of each positioning clamp pushes a product to realize positioning centering of the product X, Y.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111501432.7A CN114102476B (en) | 2021-12-09 | 2021-12-09 | Four-side centering positioning mechanism and centering positioning method thereof |
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| CN205380982U (en) * | 2016-02-04 | 2016-07-13 | 蓝思科技股份有限公司 | High -accuracy glass locating device |
| CN208575751U (en) * | 2018-07-24 | 2019-03-05 | 昆山索莱能光电科技有限公司 | Positioning and clamping mechanism and mechanized production system |
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| KR100306302B1 (en) * | 1999-04-23 | 2001-10-29 | 정문술 | device for position of LCD panel algine |
| KR101019148B1 (en) * | 2010-10-20 | 2011-03-04 | (주) 티오피에스 | Centering jig of thin plate glass for display |
| CN104526609B (en) * | 2014-12-30 | 2017-01-18 | 深圳秋田微电子有限公司 | General tooling fixture for laminating multiple layers of sheets |
| CN207902970U (en) * | 2017-12-29 | 2018-09-25 | 广州道达天成橡胶制品有限公司 | A kind of bottle is put upside down device |
| CN209813362U (en) * | 2018-12-03 | 2019-12-20 | 苏州桐力光电股份有限公司 | Tool structure is adjusted well to rigging machine |
| CN110304084A (en) * | 2019-08-07 | 2019-10-08 | 上海中车瑞伯德智能系统股份有限公司 | A kind of rail friendship Vehicle side power window installation system |
| CN210877970U (en) * | 2019-09-20 | 2020-06-30 | 芜湖太阳神汽摩配制造有限公司 | Positioning device for wire cutting machine |
| CN211728492U (en) * | 2020-02-27 | 2020-10-23 | 博众精工科技股份有限公司 | Clamping and positioning tool |
| CN112872392A (en) * | 2021-01-14 | 2021-06-01 | 武汉中鸿森电器有限公司 | Clamp capable of being clamped repeatedly for numerical control machine tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205380982U (en) * | 2016-02-04 | 2016-07-13 | 蓝思科技股份有限公司 | High -accuracy glass locating device |
| CN208575751U (en) * | 2018-07-24 | 2019-03-05 | 昆山索莱能光电科技有限公司 | Positioning and clamping mechanism and mechanized production system |
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