CN216912685U

CN216912685U - Accurate positioner of welding machine product

Info

Publication number: CN216912685U
Application number: CN202123354599.3U
Authority: CN
Inventors: 叶耀钟; 谢细晶; 张波; 夏彬
Original assignee: Jianhong Precious Metal Suzhou Co ltd
Current assignee: Jianhong Precious Metal Suzhou Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-07-08
Anticipated expiration: 2031-12-29

Abstract

The utility model discloses a welding machine product accurate positioning device which comprises a rotary table, a clamping carrier fixed on the rotary table, a positioning and positioning assembly and a pre-welding assembly arranged on the upper end face and the lower end face, wherein the positioning and positioning assembly comprises a supporting frame, a positioning cylinder, a clamping cylinder and a positioning clamping jaw, a limiting plate is arranged on the positioning clamping jaw and is over against a silver base point, the pre-welding assembly comprises a jacking base and a pressing and welding assembly, the jacking base comprises a jacking cylinder, a jacking seat and a jacking table, the jacking table is connected with a welding power supply cathode, the pressing and welding assembly comprises a pressing cylinder, a pressing block and a welding block, and the welding block is connected with a welding power supply anode. The device adopts the mode of four sides location centre gripping, fixes a position the part multiaspect in the clamp carrier on the revolving stage, and the accuracy is high, recycles spacing piece with silver basic point spacing with counterpoint mode, and the prewelding subassembly of terminal surface accomplishes silver basic point and part binding face prewelding about final cooperation, is convenient for guarantee the welding quality of follow-up welding process and improves production efficiency.

Description

Accurate positioner of welding machine product

Technical Field

The utility model relates to the technical field of automation equipment, in particular to a welding machine product accurate positioning device.

Background

Silver point welding, also called silver contact welding, is a technological method for welding by using pure silver or silver alloy as an electric contact material, and because silver-based electric contacts have better electric wear resistance, fusion welding resistance and electric conductivity, the contact resistance is small and stable, and the silver-based electric contacts are widely applied to various light and heavy load low-voltage electric appliances, household electric appliances, automobile industry and aerospace industry. The silver-based electrical contact needs to be positioned and pre-welded on a part, and because the part has a small position to be welded and the requirement on welding accuracy is very high in the process of matching with a subsequent welding production process, an accurate positioning device for performing pre-welding on the batch-produced part during pre-welding is necessary to be designed so as to ensure the welding quality and the production efficiency of the subsequent welding process.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: in view of the technical requirements in the background art, the accurate positioning device for the welding machine product is designed, a four-side positioning clamping mode is adopted, parts in a clamping carrier on a rotary table are positioned on multiple sides, the accuracy is high, a silver base point is limited in an alignment mode through a limiting sheet, and finally a silver base point and a part binding surface are prewelded through a prewelding assembly matched with an upper end face and a lower end face, so that the welding quality of a follow-up welding process is guaranteed, and the production efficiency is improved.

The technical scheme adopted for solving the problems is as follows:

the utility model provides an accurate positioner of welding machine product, includes the revolving stage, fixes the clamp carrier on the revolving stage, counterpoints locating component and the prewelding subassembly of upper and lower terminal surface setting.

The clamping carrier on the turntable receives the parts supplied by the feeding assembly and is pre-positioned and clamped,

the clamping carriers are fixedly connected to the outer periphery of the rotary table in an annular array manner, the distribution angle of the adjacent clamping carriers is the rotation angle of the rotary table each time,

the alignment positioning component comprises a support frame fixed on the workbench, a positioning cylinder, a clamping cylinder and a positioning clamping jaw, wherein the positioning cylinder is horizontally and fixedly connected on the support frame, an ejector rod of the positioning cylinder is fixedly connected with the clamping cylinder, the left side and the right side of the clamping cylinder are provided with the positioning clamping jaws which symmetrically open and close to clamp and position a silver base point to be prewelded of a part in an alignment mode, the positioning clamping jaw is also provided with a limiting plate over the silver base point to realize full limiting,

the pre-welding component is arranged at the position of a silver base point of a part to be pre-welded in the vertical direction and comprises a jacking base and a pressing welding component,

the jacking base comprises a jacking cylinder, a jacking seat and a jacking table, the jacking cylinder is fixedly connected on the workbench, a mandril of the jacking cylinder is fixedly connected with the jacking table, the jacking table is limited by the jacking seat and realizes the lifting action, the jacking table is connected with the negative pole of the welding power supply,

the pressing and welding assembly comprises a pressing cylinder, a pressing block and a welding block, the pressing block is fixedly connected to the lower end of an ejector rod of the pressing cylinder, the welding block is fixedly connected to the lower end of the pressing block and is opposite to the position of a silver base point to be prewelded to perform pressing action, and the welding block is connected with the anode of a welding power supply.

Furthermore, the feeding assembly comprises a moving material carrying platform driven by an electric sliding screw rod pair, a carrying disc on the material carrying platform and a robot gripper, and parts in the carrying disc are accurately placed on the clamping carrier through the robot gripper.

Furthermore, the turntable is driven by the transmission assembly to rotate in an angle-dividing manner, the transmission assembly comprises a stepping motor, a driving belt wheel, a synchronous belt and a driven belt wheel, the driving belt wheel is matched with a main shaft of the stepping motor to obtain power, the synchronous belt is matched with the driving belt wheel and the driven belt wheel to transmit power, and the driven belt wheel is connected with an input shaft of the dividing disc to obtain power for dividing stepping rotation.

Further, the clamping carrier comprises a positioning seat, a pushing cylinder, a pushing block, a clamping seat, clamping rods, a clamping cylinder and a positioning screw, wherein the positioning seat is used for longitudinally positioning the part, and the clamping seat, the clamping rods, the clamping cylinder and the pushing block are used for transversely clamping the part and are hinged in a bilateral symmetry mode.

Furthermore, the pushing cylinder is fixed on the positioning seat, the pushing block is connected with a pushing rod of the pushing cylinder, and the pushing block is in sleeve fit with a center hole of the clamping seat of the transverse clamping assembly.

Furthermore, the centre bore has been seted up to grip slipper center horizontal direction to cooperation longitudinal positioning subassembly treats the longitudinal top of prewelding position with the part and pushes away location, screens, spacing, and both sides have left grip block and right grip block through articulated shaft activity link, left grip block upper end links firmly the centre gripping cylinder, the supporting rod of centre gripping cylinder passes through the set screw and connects in right grip block upper end, and under the drive of centre gripping cylinder, two grip blocks will place the horizontal centre gripping of part, the clamp tight in the grip slipper upper end.

The utility model has the beneficial effects that:

this accurate positioner of welding machine product adopts the mode of four sides location centre gripping, fixes a position the part multiaspect in the clamp carrier on the revolving stage, and the accuracy is high, recycles spacing piece spacing with the silver base point spacing with counterpoint mode, and the prewelding subassembly of terminal surface is accomplished silver base point and part binding face prewelding about the final cooperation, is convenient for guarantee follow-up welding process's welding quality and improvement production efficiency.

Drawings

FIG. 1 is a schematic structural diagram of a turntable, a clamping carrier, an alignment positioning assembly and a pre-welding assembly according to the present embodiment;

FIG. 2 is a schematic structural diagram of a product precise positioning device of the welding machine in the embodiment;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

the automatic welding device comprises a material moving and carrying table, a robot gripper, a 3-electric sliding screw rod pair, a 4-rotary table, a 5-pre-welding assembly, a 6-support frame, a 7-pressing air cylinder, an 8-pressing block, a 9-part, a 10-clamping carrier, an 11-jacking base, a 12-jacking air cylinder, a 13-clamping air cylinder, a 14-positioning air cylinder, a 15-left clamping block, a 16-right clamping block, a 17-jacking seat, an 18-jacking table, a 19-right positioning clamping jaw, a 20-right limiting plate, a 21-silver base point, a 22-welding position, a 23-left limiting plate and a 24-left positioning clamping jaw.

Detailed Description

The technical solution of the present invention will be clearly and completely described in the following by way of example with reference to the accompanying drawings.

Referring to fig. 1-3, the present embodiment provides a precise positioning device for a product of a welding machine, which includes a rotary table 4, a clamping carrier 10 fixed on the rotary table 4, an alignment positioning assembly, and a pre-welding assembly 5 disposed on an upper end surface and a lower end surface. The clamping carrier 10 on the turntable 4 receives the parts 9 supplied by the feeding assembly and is pre-positioned and clamped.

Referring to fig. 1, the clamping carriers 10 are fixedly connected to the outer periphery of the turntable 4 in an annular array, and the distribution angle of adjacent clamping carriers 10 is the rotation angle of the turntable 4 at each time, and each clamping carrier 10 includes a positioning seat, a pushing cylinder and a pushing block for longitudinally positioning the part 9, and a clamping seat, clamping blocks hinged in bilateral symmetry, clamping rods, a clamping cylinder 13 and a positioning screw (none of which is labeled) for transversely clamping the part 9.

The alignment positioning assembly comprises a support frame 6 fixed on the workbench, a positioning cylinder 14, a clamping cylinder 13 and positioning clamping jaws, wherein the positioning cylinder 14 is horizontally and fixedly connected on the support frame 6, an ejector rod of the positioning cylinder 14 is fixedly connected with the clamping cylinder 13, the left side and the right side of the clamping cylinder 13 are provided with the positioning clamping jaws which symmetrically open and close to each other, the positioning clamping jaws are used for clamping and positioning the silver base point 21 to be prewelded of the part 9 in an alignment mode, the positioning clamping jaws are also provided with limiting plates over the silver base point 21 to realize full limiting,

specifically, referring to fig. 3, the pre-welding assembly 5 is arranged at a position of a silver base point 21 to be pre-welded of a part 9 in the vertical direction, and includes a jacking base 11 and a pressing and welding assembly, the jacking base 11 includes a jacking cylinder 12, a jacking seat 17 and a jacking table 18, the jacking cylinder 12 is fixedly connected to a workbench, a jacking rod of the jacking cylinder 12 is fixedly connected to the jacking table 18, the jacking table 18 is limited by the jacking seat 17 and realizes a lifting action, the jacking table 18 is connected to a welding power supply cathode, the pressing and welding assembly includes a pressing cylinder 7, a pressing block 8 and a welding block, the pressing block 8 is fixedly connected to a lower end of the jacking rod of the pressing cylinder 7, the welding block is fixedly connected to a lower end of the pressing block 8 and is used for pressing the position of the silver base point 21 to be pre-welded, and the welding block is connected to an anode of the welding power supply.

The further embodiment is that the feeding assembly comprises a moving material carrying platform 1 driven by an electric sliding screw pair 3, a carrying disc on the material carrying platform and a robot gripper 2, and a part 9 in the carrying disc is accurately placed on a clamping carrier 10 through the robot gripper 2.

The further embodiment is that the turntable 4 is driven by a transmission assembly to rotate in an angle-dividing manner, the transmission assembly comprises a stepping motor, a driving belt wheel, a synchronous belt and a driven belt wheel, the driving belt wheel is matched with a main shaft of the stepping motor to obtain power, the synchronous belt is matched with the driving belt wheel and the driven belt wheel to transmit power, and the driven belt wheel is connected with an input shaft of the dividing disc to obtain power for dividing stepping rotation.

The further implementation scheme is that the pushing cylinder is fixed on the positioning seat, the pushing block is connected with a pushing rod of the pushing cylinder, and the pushing block is in sleeve fit with a center hole of the clamping seat of the transverse clamping assembly.

A central hole is formed in the center of the clamping seat in the horizontal direction, the part 9 is subjected to longitudinal pushing positioning, clamping and limiting at a pre-welding position 22 by matching with a longitudinal positioning assembly, a left clamping block 15 and a right clamping block 16 are movably connected to two sides of the clamping seat through articulated shafts, the upper end of the left clamping block 15 is fixedly connected with a clamping cylinder 13, a clamping rod of the clamping cylinder 13 is connected to the upper end of the right clamping block 16 through a positioning screw, and the part 9 placed at the upper end of the clamping seat is transversely clamped and clamped by the two clamping blocks under the driving of the clamping cylinder 13.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes, modifications, substitutions and alterations can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art, the scope of the present invention being defined by the appended claims and their equivalents.

Claims

1. The utility model provides an accurate positioner of welding machine product, includes the revolving stage, fixes clamping carrier, counterpoint locating component and the pre-welding subassembly that sets up of upper and lower terminal surface on the revolving stage, its characterized in that:

the alignment positioning component comprises a support frame fixed on the workbench, a positioning cylinder, a clamping cylinder and a positioning clamping jaw, the positioning cylinder is horizontally and fixedly connected on the support frame, an ejector rod of the positioning cylinder is fixedly connected with the clamping cylinder, the left side and the right side of the clamping cylinder are provided with the positioning clamping jaws which symmetrically open and close, the positioning clamping jaws are also provided with a limiting plate over the silver base point to realize full limiting,

2. The accurate positioner of welding machine product of claim 1, characterized in that: the feeding assembly comprises a moving material carrying platform driven by an electric sliding screw rod pair, a carrying disc on the material carrying platform and a robot gripper.

3. The accurate positioner of welding machine product of claim 1, characterized in that: the turntable is driven by a transmission assembly to rotate at equal angles, and the transmission assembly comprises a stepping motor, a driving belt wheel, a synchronous belt and a driven belt wheel.

4. The accurate positioner of welding machine product of claim 1, characterized in that: the clamping carrier comprises a positioning seat, a pushing cylinder, a pushing block, a clamping seat, clamping blocks, clamping rods, a clamping cylinder and a positioning screw, wherein the positioning seat is used for longitudinally positioning a part, and the clamping seat, the pushing cylinder and the pushing block are used for transversely clamping the part.

5. The accurate positioner of welding machine product of claim 4, characterized in that: the pushing cylinder is fixed on the positioning seat, the pushing block is connected with a pushing rod of the pushing cylinder, and the pushing block is in sleeve fit with a center hole of the clamping seat of the transverse clamping assembly.

6. The accurate positioner of welding machine product of claim 4, characterized in that: the centre bore has been seted up to the central horizontal direction of grip slipper to cooperation longitudinal positioning subassembly treats the longitudinal top of prewelding position with the part and pushes away location, screens, spacing, and both sides have left grip block and right grip block through articulated shaft swing joint, left grip block upper end links firmly the centre gripping cylinder, the supporting rod of centre gripping cylinder passes through the set screw and connects in right grip block upper end, and two grip blocks will place the horizontal centre gripping of part in the grip slipper upper end, press from both sides tightly.