CN115383428B

CN115383428B - Floating type string rod feeding assembly and feeding method

Info

Publication number: CN115383428B
Application number: CN202211205983.3A
Authority: CN
Inventors: 卞景民; 凡金章
Original assignee: Wuxi Novo Automation Technology Corp Ltd
Current assignee: Wuxi Novo Automation Technology Corp Ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-09-29
Anticipated expiration: 2042-09-30
Also published as: CN115383428A

Abstract

The utility model discloses a floating type string rod feeding assembly and a feeding method. The floating type string rod feeding assembly is simple in structure and ingenious in design; and the jig and the string rod are not blocked when the material is taken, so that smooth feeding of the jig is ensured, and the working efficiency is improved.

Description

Floating type string rod feeding assembly and feeding method

Technical Field

The utility model belongs to the technical field of automatic equipment, and particularly relates to a floating type string rod feeding assembly and a feeding method.

Background

As is well known, in the manufacturing process of a part of frames of electronic products, the outer side surface of the frame needs to be subjected to surface treatment, and in order to ensure the quality of the surface treatment, special tools are generally required to be designed for assisting in the surface treatment, and as shown in fig. 1 to 3, the tools comprise a bottom plate 1a and a cover plate 1b, and the bottom plate 1a and the cover plate 1b clamp and fix the mobile phone frame 1d through an elastic buckle assembly 1c, so that only the remaining outer side surface of the mobile phone frame 1d is exposed to the outside for subsequent surface treatment. At present, a serial automatic feeding structure is generally adopted for feeding the jig, so that openings 1e for penetrating into serial rods are correspondingly formed in the bottom plate 1a and the cover plate 1 b.

For example, in chinese patent publication No. CN215709582U, publication No. 2022, 2 and 1, entitled "automatic feeding mechanism for product jigs, because the boom assembly and the moving seat are relatively fixed, the boom is easy to deform during use, so that jigs and the boom are easily blocked during feeding, and the manipulator cannot take materials smoothly.

Disclosure of Invention

The utility model aims to provide a floating type string rod feeding assembly and a feeding method, which are used for solving the problem that the jig is easy to be blocked when a string rod type feeding mechanism is adopted in the prior art.

To achieve the purpose, the utility model adopts the following technical scheme:

a floating type string rod feeding component, which comprises,

the string rod assembly comprises a base and a string rod, wherein the string rod is detachably arranged on the base, a positioning assembly for positioning the string rod is arranged on the base,

the mounting plate is arranged below the base, the base can be arranged on the mounting plate in a fixed state or a floating state,

a floating drive device connected with the base and configured to switch the base from a fixed state to a floating state,

the centering mechanism comprises a first centering mechanism and a second centering mechanism, the first centering mechanism and the second centering mechanism are configured to alternately centering the upper part of the string rod when the base is in a floating state so as to avoid interference to a jig on the string rod during material taking,

the lifting plate is connected with a lifting driving device and provided with an avoidance hole for avoiding the base, the lifting driving device drives all the jigs on the string rod to integrally rise or fall through the lifting plate,

and the manipulator is configured to sequentially take away the jigs on the string rod when the base is in a floating state.

Further, a plurality of first positioning pins are vertically arranged on the end face of the mounting plate, a plurality of positioning holes are formed in the base in a matched mode with the first positioning pins, the first positioning pins penetrate through the positioning holes, the first positioning pins comprise positioning sections and non-positioning sections, the outer diameters of the positioning sections are matched with the positioning holes, the outer diameters of the non-positioning sections are smaller than the outer diameters of the positioning sections, and when the positioning holes are positioned in the positioning sections of the first positioning pins, the base is in a fixed state; when the positioning hole is in the non-positioning section of the first positioning pin, the base is in a floating state.

Further, the non-positioning section is located at the upper portion of the first positioning pin, and the non-positioning section adopts a conical structure with the outer diameter smaller than that of the positioning section and the upper portion smaller than that of the positioning section and the lower portion larger than that of the positioning section.

Further, the floating driving device is a jacking air cylinder, the jacking air cylinder is vertically arranged on the bottom surface of the mounting plate, a piston rod of the jacking air cylinder upwards penetrates through the mounting plate to be connected to the bottom surface of the base, and the non-positioning section is located above the positioning section.

Further, the first centering mechanism is disposed above the second centering mechanism, the first centering mechanism is configured to center the string from the top end of the string when the base is in a floating state, and the second centering mechanism is configured to center the string from both sides of the upper portion of the string when the base is in a floating state and the first centering mechanism is released from centering the string.

Further, the first righting mechanism and the second righting mechanism are integrated on the same assembly seat, and the assembly seat is connected with a lifting module for driving the assembly seat to lift so as to adapt to the strings with different heights.

Further, the first righting mechanism comprises a top righting cylinder and a turnover plate, the top righting cylinder is fixed on the assembly seat, one end of the turnover plate is hinged to the end portion of a piston rod of the top righting cylinder, a righting head extending downwards is arranged at the other end of the turnover plate, a righting hole is formed in the top end of the string rod in a matched mode, and a turnover driving plate is hinged between the top righting cylinder and the middle of the turnover plate.

Further, the second righting mechanism comprises a telescopic cylinder, a telescopic plate and a clamping jaw cylinder, wherein the telescopic cylinder is fixed on the assembly seat, the telescopic plate is connected to a piston rod of the telescopic cylinder, the telescopic cylinder drives the clamping jaw cylinder to be close to or far away from the string rod, and the clamping jaw cylinder is arranged at the end part of the telescopic plate and two clamping hands of the clamping jaw cylinder are positioned at two outer sides of the string rod.

Further, the positioning assembly comprises a positioning clamping jaw cylinder and a plurality of string rod positioning pins, wherein the positioning clamping jaw cylinder and the plurality of string rod positioning pins are arranged on the base, a plurality of string rod positioning holes are formed in the bottom ends of the string rods corresponding to the string rod positioning pins, the bottom ends of the string rods penetrate into the corresponding string rod positioning pins through the string rod positioning holes to position the string rods in the horizontal direction, and two clamping hands of the positioning clamping jaw cylinder are opened to position the string rods in the height direction.

A floating type string rod feeding method adopts the floating type string rod feeding assembly to feed, and comprises the following steps:

the floating driving device drives the base to switch from a fixed state to a floating state, the first righting mechanism rightes the string rod assembly at the top end of the string rod,

the lifting driving device drives the lifting plate to lift, so that the jig at the uppermost layer of the string rod is lifted to a set material taking height,

the manipulator grabs the jig at the uppermost layer on the string rod but does not move temporarily,

the lifting driving device drives the lifting plate to descend for a certain distance, at the moment, the jigs on the uppermost layer, which are gripped by the manipulator, on the string rod descend for a certain distance under the action of gravity, so that the jigs gripped by the manipulator are separated from the jigs on the adjacent lower side and form a certain interval, the second centralizing mechanism centralizes the jigs on two sides of the string rod,

the second centralizing mechanism centralizes the string rod at two sides, the first centralizing mechanism is loosened to avoid the material taking of the manipulator at the next step,

the manipulator removes the jig at the uppermost layer of the grasping from the string rod and moves to the next working procedure.

Compared with the prior art, the floating type string rod base of the floating type string rod feeding assembly adopts a floating structure, the string rod base is in a floating state during material taking, and the string rods are alternately straightened through the two sets of straightening mechanisms, so that the string rod assembly can shake in a certain range, the clamping of a jig and the string rods during material taking is avoided, and the floating type string rod feeding assembly is simple in structure and ingenious in design; and the jig and the string rod are not blocked when the material is taken, so that smooth feeding of the jig is ensured, and the working efficiency is improved.

Drawings

Fig. 1 is a schematic perspective view of a conventional fixture for surface treatment of a mobile phone frame;

fig. 2 is a schematic perspective view of a bottom plate of a conventional fixture for surface treatment of a mobile phone frame;

fig. 3 is a schematic perspective view of a cover plate of a conventional fixture for surface treatment of a mobile phone frame;

fig. 4 is a schematic perspective view of a floating boom feeding assembly according to an embodiment of the present utility model;

fig. 5 is a schematic perspective view of a floating boom feeding assembly according to an embodiment of the present utility model;

FIG. 6 is a schematic front view of a floating boom feed assembly according to an embodiment of the present utility model;

fig. 7 is a schematic perspective view of a centering mechanism of a floating type string feeding assembly according to an embodiment of the present utility model;

fig. 8 is a partial enlarged view at a in fig. 4.

Detailed Description

The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 4 to 8, in this embodiment, a floating type string feeding assembly includes a string assembly, a first centering mechanism and a second centering mechanism, the string assembly includes a base 1 and a string 2, a product fixture 3 is stacked and sleeved on the string 2, a positioning jaw cylinder 4 and a plurality of string positioning pins are disposed on the base 1, a plurality of string positioning holes are disposed at the bottom end of the string 2 corresponding to the string positioning pins, the bottom end of the string 2 penetrates into the corresponding string positioning pins through the string positioning holes to position the string 2 in the horizontal direction, and two clamping fingers of the positioning jaw cylinder 4 are opened to position the string 2 in the height direction. The below of base 1 is provided with mounting panel 5, the terminal surface vertical fixed of mounting panel 5 is provided with four first locating pins 6, a locating hole has all been seted up on the four corners of base 2 to cooperation first locating pin 6, first locating pin 6 wears to locate the locating hole with base 1 place on mounting panel 5, first locating pin 6 includes location section 60 and non-location section 61, the external diameter and the locating hole cooperation of location section 60, non-location section 61 is located the upper portion of first locating pin 60, non-location section 61 adopts the external diameter to be less than location section 60 and big-end-down's toper structure. The bottom of mounting panel 5 is vertical to be fixed with jacking cylinder 7, the piston rod of jacking cylinder 7 up and pass mounting panel 5 and connect on the bottom surface of base 1, when the piston rod of jacking cylinder 7 is retracted, the locating hole of base 1 is in the location section 60 on the first locating pin 6, base 1 is in fixed state this moment, when the piston rod of jacking cylinder 7 stretches out, base 1 is jacked up, the locating hole on base 1 is in the non-location section 61 that is in on the first locating pin 6, because there is the clearance of rocking between the locating hole on non-location section 61 and the base 1 this moment, so base 1 is in the floating state that can rock at the horizontal direction certain range.

In order to ensure that the base 1 is not inclined in a floating state, a first centralizing mechanism and a second centralizing mechanism are arranged at the upper position of the string rod 2, the first centralizing mechanism and the second centralizing mechanism are integrated on the same assembling seat 8, the assembling seat 8 is connected with a first lifting module 9 for driving the first centralizing mechanism to lift, the first centralizing mechanism is arranged above the second centralizing mechanism, the first centralizing mechanism is configured to centralize the base 1 from the top end of the string rod 2 when the base 1 is in the floating state, the first centralizing mechanism comprises a top centralizing cylinder 10 and a turnover plate 11, the top centralizing cylinder 10 is fixed on the assembling seat 8, one end of the turnover plate 11 is hinged to the end part of a piston rod of the top centralizing cylinder 10, the other end of the turnover plate 11 is provided with a centralizing head 12 extending downwards, the top end of the assembling centralizing head 12 is provided with a centralizing hole, and a turnover driving plate 13 is hinged between the top centralizing cylinder 10 and the middle part of the turnover plate 11. The second righting mechanism comprises a first telescopic cylinder 14, a telescopic plate 15 and a clamping jaw cylinder 16, wherein the first telescopic cylinder 14 is fixed on the assembly seat 8, the telescopic plate 15 is connected to a piston rod of the first telescopic cylinder 14, the first telescopic cylinder 14 drives the clamping jaw cylinder 16 to be close to or far away from the string rod 2, the clamping jaw cylinder 16 is arranged at the end part of the telescopic plate 15, and two clamping hands of the clamping jaw cylinder 16 are positioned at two outer sides of the string rod 2.

In order to realize the step-by-step jacking and feeding of the product jig 3 on the string rod 2, a lifting plate 17 is arranged on one side of the base 1, the lifting plate 17 is fixedly connected to the driving end of a second telescopic cylinder 18, the second telescopic cylinder 18 is fixed on a lifting seat 19, the lifting seat 19 is arranged on a second lifting module 20, and an avoidance hole 21 for avoiding the base 1 is formed in the lifting plate 17. During feeding, the second telescopic cylinder 18 drives the lifting plate 17 to be inserted below the product jig 3 at the lowest layer on the base 1, and as the two ends of the product jig 3 are exposed out of the base 1, the lifting plate 17 and the product jig 3 form interference, and when the second lifting module 20 drives the lifting plate 17 to lift, the lifting plate 17 can drive all the product jigs 3 on the string rod 2 to lift.

The mechanical arm is arranged on one side of the floating type string rod feeding assembly, and the product fixture 3 on the string rod 2 is sequentially taken away by the mechanical arm when the base 1 is in a floating state.

The specific feeding method of the floating string rod feeding assembly comprises the following steps of:

s1, jacking the base 1 to a certain height by the jacking cylinder 7 to enable the base 1 to be in a floating state, driving the overturning plate 11 to overturn downwards by the top centralizing cylinder 10 to enable the centralizing head 12 to be inserted into a centralizing hole at the top of the string rod 2 to centralize the top of the string rod 2 so as to prevent the base 1 from toppling under the floating state,

s2, the second lifting module 20 drives the lifting plate 17 to lift, so that all the product jigs 3 on the string rod 2 are moved upwards by one material distance, the uppermost product jig 3 on the string rod 2 is lifted to a set material taking position,

s3, the manipulator grabs the product fixture 3 at the uppermost layer on the string rod 2 and does not move temporarily,

s4, the second lifting module 20 drives the lifting plate 17 to descend by a certain height, at the moment, the rest product jigs 3 on the string rod 2 except the product jigs 3 grasped by the mechanical arm descend by a certain distance under the action of gravity, so that the product jigs 3 grasped by the mechanical arm are separated from the adjacent lower product jigs 3 and form a certain interval, the second righting mechanism is convenient for righting the string rod 2 in the lateral direction,

s5, the first telescopic cylinder 14 stretches out to move the clamping jaw cylinder 16 to the outer side of the string rod 2, two clamping hands of the clamping jaw cylinder 16 straighten the upper part of the string rod 2 at two sides,

s6, the top righting cylinder 10 drives the overturning plate 11 to overturn upwards so that the righting head 12 leaves the righting hole at the top of the string rod 2 to avoid the material for the next step of the manipulator,

s7, the mechanical arm takes the product fixture 3 at the uppermost layer which is grasped off the string rod 2 and moves to the next working procedure,

similarly, the above-mentioned actions are repeated until the manipulator takes all the product jigs 3 on the string rod 2 away while the base 1 is in the floating state.

The above embodiments merely illustrate the basic principles and features of the present utility model, and the present utility model is not limited to the above examples, but can be variously changed and modified without departing from the spirit and scope of the present utility model, which is within the scope of the present utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A floating type string rod feeding assembly is characterized by comprising,

a centering mechanism comprising a first centering mechanism and a second centering mechanism, the first and second centering mechanisms configured to alternately center an upper portion of the string when the base is in a floating state,

2. The floating type string rod feeding assembly according to claim 1, wherein a plurality of first positioning pins are vertically arranged on the end face of the mounting plate, a plurality of positioning holes are formed in the base in a matched mode through the first positioning pins, the first positioning pins penetrate through the positioning holes, the first positioning pins comprise positioning sections and non-positioning sections, the outer diameters of the positioning sections are matched with the positioning holes, the outer diameters of the non-positioning sections are smaller than the outer diameters of the positioning sections, and when the positioning holes are in the positioning sections of the first positioning pins, the base is in a fixed state; when the positioning hole is in the non-positioning section of the first positioning pin, the base is in a floating state.

3. The floating string rod loading assembly according to claim 2, wherein the non-positioning section is located at the upper portion of the first positioning pin, and the non-positioning section adopts a conical structure with an outer diameter smaller than that of the positioning section and a smaller upper portion and a larger lower portion.

4. The floating boom feeding assembly of claim 2, wherein the floating driving device is a jacking cylinder, the jacking cylinder is vertically installed on the bottom surface of the mounting plate, a piston rod of the jacking cylinder passes through the mounting plate upwards to be connected to the bottom surface of the base, and the non-positioning section is located above the positioning section.

5. The floating boom feed assembly of claim 1, wherein the first centering mechanism is disposed above the second centering mechanism, the first centering mechanism configured to center the boom from a top end of the boom when the base is in a floating state, the second centering mechanism configured to center the boom from both sides of the upper portion of the boom when the base is in a floating state and the first centering mechanism is free of centering the boom.

6. The floating boom feed assembly of claim 5, wherein the first and second centering mechanisms are integrated on the same mounting base, the mounting base being connected with a lifting module that drives the lifting module.

7. The floating boom feeding assembly according to claim 6, wherein the first centering mechanism comprises a top centering cylinder and a turnover plate, the top centering cylinder is fixed on the assembly seat, one end of the turnover plate is hinged to the end portion of a piston rod of the top centering cylinder, the other end of the turnover plate is provided with a centering head extending downwards, a centering hole is formed in the top end of the boom in cooperation with the centering head, and a turnover driving plate is hinged between the top centering cylinder and the middle of the turnover plate.

8. The floating boom feed assembly of claim 6, wherein the second centering mechanism comprises a telescoping cylinder, a telescoping plate and a clamping jaw cylinder, wherein the telescoping cylinder is fixed on the assembly base, the telescoping plate is connected to a piston rod of the telescoping cylinder, the telescoping cylinder drives the clamping jaw cylinder to approach or depart from the boom, the clamping jaw cylinder is mounted at an end of the telescoping plate, and two clamping fingers of the clamping jaw cylinder are located at two outer sides of the boom.

9. The floating type string rod feeding assembly according to claim 1, wherein the positioning assembly comprises a positioning clamping jaw cylinder and a plurality of string rod positioning pins which are arranged on the base, a plurality of string rod positioning holes are formed in the bottom end of the string rod corresponding to the string rod positioning pins, the bottom end of the string rod penetrates into the corresponding string rod positioning pins through the string rod positioning holes to position the string rod in the horizontal direction, and two clamping hands of the positioning clamping jaw cylinder are opened to position the string rod in the height direction.

10. A floating type string rod feeding method, which is characterized in that the floating type string rod feeding assembly according to any one of claims 1-9 is adopted for feeding, and the method comprises the following steps: