CN216802653U

CN216802653U - Multi-station pitch-changing mechanism

Info

Publication number: CN216802653U
Application number: CN202122973194.1U
Authority: CN
Inventors: 李相鹏; 侯玉昆
Original assignee: Jiangsu BVM Intelligent Technology Co Ltd
Current assignee: Jiangsu BVM Intelligent Technology Co Ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-06-24
Anticipated expiration: 2031-11-30

Abstract

The utility model discloses a multi-station variable pitch mechanism which comprises a fixed seat, wherein one side of the fixed seat is provided with a mounting groove, the upper side and the lower side of the mounting groove are respectively provided with a plurality of stages of limiting steps, and a pair of parallel guide rods, a variable pitch shaft and a plurality of movable blocks are arranged in the mounting groove; the sliding rail mechanism is arranged above the mounting groove of the fixing seat and comprises a fixing base plate, a pair of parallel guide sliding rails is arranged on the fixing base plate, a plurality of sliding blocks are connected to the guide sliding rails in a sliding mode and correspond to the movable blocks one to one, each sliding block is connected with an air valve block, the air valve block is connected with a vertical air ventilation hard pipe, and the air ventilation hard pipe penetrates through the lower portion of the suction nozzle mounting portion and extends to the lower portion corresponding to the suction nozzle mounting portion and is connected with a second suction nozzle; the utility model can realize the position conversion of a plurality of products with regular intervals, is convenient for grabbing materials in batches and greatly improves the productivity of equipment.

Description

Multi-station pitch-changing mechanism

Technical Field

The utility model relates to the field of automatic assembly equipment, in particular to a multi-station pitch-changing mechanism.

Background

In an automatic production line, the interval between the part products produced by the previous process station is different from the interval between the part products required by the next process station, and a variable pitch mechanism is required to realize grabbing variable pitch and realize the butt joint of the upper station and the lower station.

The existing pitch-changing mechanism only changes the pitch according to the large size and the large distance, and is limited by the pitch-changing structure, so that the existing pitch-changing mechanism is difficult to adapt to batch type conversion and influences the productivity of equipment.

The Chinese utility model with the application number of CN201721500047.X, which is exclusively used in 2018, 08 and 03, discloses a multi-station equidistant variable-pitch mechanism, which comprises a variable-pitch mechanism, wherein the variable-pitch mechanism is installed on a Z shaft of a SCARA robot, the variable-pitch mechanism comprises more than one variable-pitch suction nozzle installation plate, an oilless bushing, a variable-pitch guide shaft, a variable-pitch shaft, a guide shaft fixing plate, a cylinder, an installation seat, a variable-pitch limiting plate and a variable-pitch main plate, the installation seat is arranged on one side of the whole mechanism, the bottom of each variable-pitch suction nozzle installation plate is provided with a suction cup, the cylinder is arranged on one side of the variable-pitch shaft, the variable-pitch shaft is provided with more than one variable-pitch limiting plate, and the bottom of the variable-pitch limiting plate is connected with the variable-pitch suction nozzle installation plate; the multi-station equidistant distance changing mechanism realizes the automatic online production of stamping (or die cutting) and packaging, reduces the turnover link of products in the production process, reduces the investment of equipment and production personnel, avoids the abnormity of overlong production flow and simplifies the product manufacturing process.

The defect of above-mentioned scheme lies in, functional structure is comparatively single, only adapts to dedicated production line, and the batch that is fit for single product snatchs, is difficult to be adapted to the product condition that has different structure size on the production line, still has the space of improvement on the product commonality.

Disclosure of Invention

The utility model aims to solve the problems in the prior art, and provides a multi-station variable pitch mechanism which can realize the position change of a plurality of products with regular intervals, is convenient for grabbing materials in batches and greatly improves the productivity of equipment.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a multi-station variable-pitch mechanism comprises a fixing seat, wherein a mounting groove is formed in one side of the fixing seat, multi-stage limiting steps are arranged on the upper side and the lower side of the mounting groove, a pair of parallel guide rods, a variable-pitch shaft and a plurality of movable blocks are arranged in the mounting groove, one end of each guide rod is fixed to the side wall of the mounting groove, the plurality of movable blocks comprise suction nozzle mounting parts and sliding limiting parts, the suction nozzle mounting parts extend out of the mounting groove and are connected with first suction nozzles, the sliding limiting parts are connected with the two guide rods in a sliding mode, the variable-pitch shaft penetrates through the sliding limiting parts of all the movable blocks, and one end of the variable-pitch shaft is connected with a variable-pitch driving device; the fixing base is in the top of mounting groove is equipped with slide rail mechanism, slide rail mechanism includes fixed baseplate, the last direction slide rail that is equipped with a pair of parallel of fixed baseplate, sliding connection has a plurality of slider on the direction slide rail, a plurality of slider and a plurality of the movable block is the one-to-one relation, every the slider all connects the air valve piece, vertical air valve piece is connected to the air valve piece, the air valve piece runs through and extends to the correspondence the below of suction nozzle installation department to connect the second suction nozzle.

The scheme is applied to the field of 3C product automatic assembly production lines, is suitable for grabbing and transferring small part products in batches in the production process, and is high in efficiency and good in universality.

In this scheme, the movable block is guided by the guide arm, by the linear displacement of displacement axle drive in the mounting groove, the movable block drives the suction nozzle displacement, realizes the displacement.

Specifically, the movable blocks have two variable pitch forms, one is that all the movable blocks are close to each other rightwards, and then the suction nozzles have the minimum distance; and secondly, all the movable blocks are driven by the variable-pitch shaft and all move leftwards until being limited by corresponding steps of the multi-stage limiting steps, the maximum distance is reserved between all the movable blocks, and the maximum distance is reserved between the suction nozzles.

The improved point of the scheme is that the suction nozzle comprises a first suction nozzle and a second suction nozzle, wherein the first suction nozzle is arranged at the end part of the movable block, the second suction nozzle is arranged in the middle of the movable block, and the first suction nozzle and the second suction nozzle are provided with different air inlet channels and can respectively control suction, so that the universality of the product is improved;

the device is provided with a slide rail mechanism, the slide rail mechanism comprises a guide slide rail, a slide block, an air valve block and an air-permeable hard tube, the air-permeable hard tube penetrates through the movable block, the movable block is driven by a variable-pitch shaft to move, the air-permeable hard tube is driven to linearly move, the upper end of the air-permeable hard tube drives the slide block to move on the guide slide rail, the variable-pitch form of the movable block can be observed visually conveniently, and whether the variable pitch is in place or not is detected;

connect the hard tube of ventilating through direction slide linkage slider, pneumatic valve piece and run through the movable block, make the hard tube of ventilating have spacing effect from top to bottom to the movable block, avoid the movable block not hard up or slightly rotate along the displacement axis to the influence snatchs the precision of material product.

Furthermore, the sliding limiting parts of the plurality of movable blocks are provided with coaxial variable-pitch through holes, and the aperture of the variable-pitch through holes of the plurality of movable blocks is sequentially increased from left to right; the variable pitch shaft is provided with a step diameter-changing structure, and the outer diameter of the variable pitch shaft is gradually increased from left to right in a step manner. In the process of leftward movement of the variable-pitch shaft, each step of the stepped variable-diameter structure of the variable-pitch shaft is abutted to the variable-pitch through hole of one movable block until the movable block is abutted to the multistage limiting steps on the upper side and the lower side of the mounting groove, so that the increase of the distance between the movable blocks is realized.

Furthermore, the movable block positioned at the leftmost end is fixedly connected with the left end part of the variable pitch shaft, and the movable block positioned at the rightmost end is fixedly connected with the right end part of the guide rod. When the variable pitch shaft moves left, the movable block at the leftmost end is driven to extrude other movable blocks leftwards until all the movable blocks are extruded together, so that the minimum pitch of variable pitch is realized, and the rapid variable pitch is realized.

Furthermore, the number of the movable blocks is 5 to 12, the number of the steps of the multi-stage limiting steps of the mounting groove is more than or equal to the number of the movable blocks, and the length of each section of the steps of the multi-stage limiting steps is the same. The length of each section of step of the multi-stage limiting steps is the same, so that when the variable distance of the movable block is the maximum, the movable block has uniform spacing distance, and batch material taking is facilitated.

Further, displacement drive arrangement includes slip table cylinder, drive plate, push rod, slip table cylinder fixed mounting in with one side that the mounting groove is relative, the expansion end of slip table cylinder is connected the drive plate, the drive plate is connected the push rod, one side of mounting groove is equipped with the opening, the push rod passes the opening and connects the displacement axle.

Furthermore, a plurality of the sliding limiting parts of the movable blocks are provided with two guide through holes matched with the guide rods, and the guide rods respectively penetrate through the two through holes of the sliding limiting parts.

Furthermore, both sides all are equipped with displacement limiting module about the mounting groove, multistage spacing step is located displacement limiting module's upside or downside, displacement limiting module with fixing base demountable installation. Through setting up the spacing module of detachable displacement, realize the displacement of different intervals, increase the commonality.

Compared with the prior art, the utility model has the beneficial effects that:

1. the product with a plurality of regular intervals can be realized, the position change of the specified distance is carried out, the batch grabbing of materials is facilitated, and the production capacity of the equipment is greatly improved;

2. the suction nozzles comprise a first suction nozzle and a second suction nozzle, wherein the first suction nozzle is arranged at the end part of the movable block, the second suction nozzle is arranged in the middle of the movable block, the first suction nozzle and the second suction nozzle are provided with different air inlet channels, suction can be controlled respectively, and the universality of the product is improved;

3. the device is provided with a slide rail mechanism, the slide rail mechanism comprises a guide slide rail, a slide block, an air valve block and an air-permeable hard tube, the air-permeable hard tube penetrates through the movable block, the movable block is driven by a variable-pitch shaft to move, the air-permeable hard tube is driven to linearly move, the upper end of the air-permeable hard tube drives the slide block to move on the guide slide rail, the variable-pitch form of the movable block can be observed visually conveniently, and whether the variable pitch is in place or not is detected;

4. the guide slide rail is connected with the slide block, the air valve block is connected with the ventilation hard tube to penetrate through the movable block, so that the ventilation hard tube has an up-and-down limiting effect on the movable block, and the movable block is prevented from loosening or slightly rotating along a variable pitch axis, so that the precision of grabbing a material product is influenced;

5. through the hookup location who changes slider and air valve piece and adjust the hard tube length of ventilating to adjust the height of second suction nozzle, thereby adapt to the snatching of the product of not unidimensional, increase the whole commonality of equipment.

Drawings

FIG. 1 is a perspective view of a multi-station pitch change mechanism of the present invention;

FIG. 2 is a perspective view of the present invention after the slide rail mechanism is disassembled;

FIG. 3 is a rear side perspective view of the present invention shown in FIG. 2;

FIG. 4 is a perspective view of the fixing base of the present invention;

FIG. 5 is a perspective view of the pitch change shaft of the present invention in exploded form;

FIG. 6 is a disassembled perspective view of the movable block of the present invention;

in the figure: 1. a fixed seat; 2. mounting grooves; 3. a plurality of stages of limiting steps; 4. a guide bar; 5. a variable pitch axis; 6. a movable block; 601. a suction nozzle mounting part; 602. a slide limit part; 7. a first suction nozzle; 8. fixing the substrate; 9. a guide slide rail; 10. a slider; 11. an air valve block; 12. a ventilation hard tube; 13. a second suction nozzle; 14. a sliding table cylinder; 15. a drive plate; 16. a push rod; 17. spacing module of displacement.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "horizontal", "vertical", and the like indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 6, a multi-station variable pitch mechanism includes a fixing base 1, a mounting groove is disposed on one side of the fixing base 1, multi-stage limiting steps 3 are disposed on both upper and lower sides of the mounting groove 2, a pair of parallel guide rods 4, a variable pitch shaft 5 and a plurality of movable blocks 6 are disposed in the mounting groove 2, one end of each guide rod 4 is fixed to a side wall of the mounting groove 2, each movable block 6 includes a suction nozzle mounting portion 601 and a sliding limiting portion 602, the suction nozzle mounting portion 601 extends out of the mounting groove 2 and is connected to a first suction nozzle 7, the sliding limiting portion 602 is connected to two guide rods 4 in a sliding manner, the variable pitch shaft 5 penetrates through the sliding limiting portions 602 of all the movable blocks 6, and one end of the variable pitch shaft is connected to a variable pitch driving device; fixing base 1 is in the top of mounting groove 2 is equipped with slide rail mechanism, slide rail mechanism includes fixed baseplate 8, be equipped with a pair of parallel direction slide rail 9 on the fixed baseplate 8, sliding connection has a plurality of slider 10, a plurality of on the direction slide rail 9 slider 10 and a plurality of movable block 6 is the one-to-one, every pneumatic valve piece 11 is all connected to slider 10, vertical hard tube 12 of ventilating is connected to pneumatic valve piece 11, the hard tube 12 of ventilating runs through and extends to the correspondence the below of suction nozzle installation department 601 to connect second suction nozzle 13.

In the scheme, the movable block 6 is guided by the guide rod 4 and is driven by the variable-pitch shaft 5 to linearly displace in the mounting groove 2, and the movable block 6 drives the suction nozzle to displace to realize variable pitch.

Specifically, the movable blocks 6 have two pitch-changing modes, one is that all the movable blocks 6 are close to each other rightwards, and then the suction nozzles have the minimum distance; and secondly, all the movable blocks 6 are driven by the variable pitch shaft 5 and all move leftwards until being limited by the corresponding steps of the multi-stage limiting steps 3, the maximum distance is reserved among all the movable blocks 6, and the maximum distance is reserved among a plurality of suction nozzles.

The improved point of the scheme is that the suction nozzle comprises a first suction nozzle 7 and a second suction nozzle 13, wherein the first suction nozzle 7 is arranged at the end part of the movable block 6, the second suction nozzle 13 is arranged in the middle part of the movable block 6, the first suction nozzle 7 and the second suction nozzle 13 are provided with different air inlet channels, suction can be controlled respectively, and the universality of the product is improved;

the device is provided with a sliding rail mechanism, the sliding rail mechanism comprises a guide sliding rail 9, a sliding block 10, an air valve block 11 and a ventilation hard tube 12, the ventilation hard tube 12 penetrates through the movable block 6, the ventilation hard tube 12 is driven to linearly displace when the movable block 6 is driven to displace by the variable-pitch shaft 5, and the upper end of the ventilation hard tube 12 drives the sliding block 10 to displace on the guide sliding rail 9, so that the variable-pitch form of the movable block 6 can be conveniently and visually observed, and whether the variable pitch is in place or not can be detected;

connect the hard tube 12 of ventilating through direction slide rail 9 link block 10, air valve piece 11 and run through movable block 6, make the hard tube 12 of ventilating have spacing effect from top to bottom to movable block 6, avoid movable block 6 not hard up or slightly rotate along displacement axis 5 to the influence snatchs the precision of material product.

Further, the sliding limiting parts 602 of the plurality of movable blocks 6 are all provided with coaxial variable pitch through holes, and the aperture of the variable pitch through holes of the plurality of movable blocks 6 is sequentially increased from left to right; the variable pitch shaft 5 is provided with a stepped reducing structure, and the outer diameter of the variable pitch shaft 5 is gradually increased from left to right in a stepped manner. In the process of leftward movement of the variable-pitch shaft 5, each step of the step diameter-changing structure of the variable-pitch shaft 5 is abutted to the variable-pitch through hole of one movable block 6 until the movable block 6 is abutted to the multistage limiting steps 3 on the upper side and the lower side of the mounting groove 2, so that the distance between the movable blocks 6 is increased.

Furthermore, the movable block 6 at the leftmost end is fixedly connected with the left end of the pitch-variable shaft 5, and the movable block 6 at the rightmost end is fixedly connected with the right end of the guide rod 4. When the variable pitch shaft 5 is displaced leftwards, the movable block 6 at the leftmost end is driven to extrude other movable blocks 6 leftwards until all the movable blocks 6 are extruded together, so that the minimum pitch of variable pitch is realized, and the rapid pitch change is realized.

Furthermore, the number of the movable blocks 6 is 5 to 12, the number of the steps of the multi-stage limiting steps 3 of the mounting groove 2 is greater than or equal to the number of the movable blocks 6, and the length of each section of the steps of the multi-stage limiting steps 3 is the same. The length of each section of step through making multistage spacing step 3 is the same to when making the movable block 6 displacement be the biggest, have even spacing distance, conveniently get the material in batches.

Further, displacement drive arrangement includes slip table cylinder 14, drive plate 15, push rod 16, slip table cylinder 14 fixed mounting in with one side that mounting groove 2 is relative, the expansion end of slip table cylinder 14 is connected drive plate 15, drive plate 15 is connected push rod 16, one side of mounting groove 2 is equipped with the opening, push rod 16 passes the opening is connected the displacement axle 5.

Furthermore, the sliding limiting parts 602 of the plurality of movable blocks 6 are provided with two guiding through holes matched with the guide rods 4, and the two guide rods 4 respectively penetrate through the two through holes of the sliding limiting parts 602.

Further, the upper side and the lower side of the mounting groove 2 are both provided with variable-pitch limiting modules 17, the multi-stage limiting steps 3 are arranged on the upper side or the lower side of the variable-pitch limiting modules 17, and the variable-pitch limiting modules 17 are detachably mounted on the fixing base 1. Through setting up detachable displacement spacing module 17, realize the displacement of different intervals, increase the commonality.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The multi-station variable-pitch mechanism is characterized by comprising a fixed seat, wherein one side of the fixed seat is provided with a mounting groove, the upper side and the lower side of the mounting groove are respectively provided with a plurality of stages of limiting steps, a pair of parallel guide rods, a variable-pitch shaft and a plurality of movable blocks are arranged in the mounting groove, one end of each guide rod is fixed with the side wall of the mounting groove, the plurality of movable blocks respectively comprise a suction nozzle mounting part and a sliding limiting part, the suction nozzle mounting part extends out of the mounting groove and is connected with a first suction nozzle, the sliding limiting part is in sliding connection with the two guide rods, the variable-pitch shaft penetrates through the sliding limiting parts of all the movable blocks, and one end of the variable-pitch shaft is connected with a variable-pitch driving device; the fixing base is in the top of mounting groove is equipped with slide rail mechanism, slide rail mechanism includes fixed baseplate, the last direction slide rail that is equipped with a pair of parallel of fixed baseplate, sliding connection has a plurality of slider on the direction slide rail, a plurality of slider and a plurality of the movable block is the one-to-one relation, every the slider all connects the air valve piece, vertical air valve piece is connected to the air valve piece, the air valve piece runs through and extends to the correspondence the below of suction nozzle installation department to connect the second suction nozzle.

2. The multi-station pitch-varying mechanism according to claim 1, wherein the sliding limiting parts of the plurality of movable blocks are provided with coaxial pitch-varying through holes, and the aperture of the pitch-varying through holes of the plurality of movable blocks is sequentially increased from left to right.

3. A multi-station variable pitch mechanism according to claim 2, wherein the variable pitch shaft is provided with a stepped reducing structure, and the outer diameter of the variable pitch shaft is gradually increased from left to right.

4. A multi-station pitch varying mechanism according to claim 3, wherein the movable block at the leftmost end is fixedly connected with the left end of the pitch varying shaft, and the movable block at the rightmost end is fixedly connected with the right end of the guide rod.

5. The multi-station variable pitch mechanism according to claim 1, wherein the number of the movable blocks is 5 to 12, the number of the steps of the multi-stage limiting steps of the mounting groove is greater than or equal to the number of the movable blocks, and the length of each section of the multi-stage limiting steps is the same.

6. The multi-station variable pitch mechanism according to claim 1, wherein the variable pitch driving device comprises a sliding table cylinder, a driving plate and a push rod, the sliding table cylinder is fixedly mounted on one side opposite to the mounting groove, the movable end of the sliding table cylinder is connected with the driving plate, the driving plate is connected with the push rod, one side of the mounting groove is provided with a notch, and the push rod penetrates through the notch and is connected with the variable pitch shaft.

7. The multi-station pitch-varying mechanism according to claim 1, wherein the sliding limiting portions of the plurality of movable blocks are provided with two guiding through holes engaged with the guide rods, and the two guide rods respectively penetrate through the two through holes of the sliding limiting portions.

8. The multi-station variable pitch mechanism according to claim 1, wherein the upper side and the lower side of the mounting groove are respectively provided with a variable pitch limit module, the multi-stage limit steps are arranged on the upper side or the lower side of the variable pitch limit modules, and the variable pitch limit modules and the fixing seats are detachably mounted.