WO2021196461A1

WO2021196461A1 - Quick-change device for flexibly changing tool trolley

Info

Publication number: WO2021196461A1
Application number: PCT/CN2020/104613
Authority: WO
Inventors: 蔡朋飞; 程远
Original assignee: 南京英尼格玛工业自动化技术有限公司
Priority date: 2020-04-01
Filing date: 2020-07-24
Publication date: 2021-10-07
Also published as: CN111331287A

Abstract

Disclosed is a quick-change device for flexibly changing a tool trolley. The quick-change device comprises a tool platform (2) and a tool trolley (1) connected to the tool platform (2) in a matched manner. A limiting device (5), a jacking device (6) and a positioning device (8) are mounted on the tool platform (2), the tool platform (2) limits the tool trolley (1) in the front and rear directions by means of the limiting device (5), the tool trolley (1) moves upwards or downwards relative to the tool platform (2) under the driving of the jacking device (6), and the tool trolley (1) is fixed on the tool platform (2) by means of the positioning device (8); and in addition, a male head part (33) of a gas-electric module is further mounted on the tool platform (2), a female head part (13) of the gas-electric module is mounted on the tool trolley (1), and the tool platform (2) is electrically connected to the tool trolley (1) by means of an electric module. The quick-change device can realize quick butt joint of a tool trolley to a tool positioning platform and quick changing of the tool trolley, and effectively reduces the tool changing time, and can ensure repeated positioning accuracy of the changed tool trolley on the tool positioning platform when changing different tools.

Description

Quick change device of flexible switching tooling trolley

Technical field

The invention relates to a quick change device for a flexible switching tooling trolley, which belongs to the technical field of welding equipment.

Background technique

The general trend of flexible manufacturing is that the production line is getting shorter and simpler, and the equipment investment is getting less and less; the intermediate inventory is getting less and less, the utilization rate of the site is getting higher and higher, and the cost is getting lower and lower; the production cycle is getting shorter and smaller. Shorter, faster and faster delivery; less and less loss of various types, higher and higher efficiency, thus greatly reducing production costs, among which, the quick change device that can realize the rapid switching of the tooling trolley on the tooling platform is flexible Manufacturing Equipment.

technical problem

The technical problem to be solved by the present invention is to provide a quick change device for flexible switching tooling trolley, which can realize quick docking and switching between the tooling trolley and the tooling positioning platform.

Technical solutions

A quick change device for flexible switching of tooling trolleys, the quick change device comprising a tooling platform and a tooling trolley that are mutually matched and connected with the tooling platform; a limit device, a jacking device and a positioning device are installed on the tooling platform, and the tooling platform passes the limit The device limits the position of the tooling trolley in the front and back direction. The tooling trolley is driven by the jacking device to move up or down relative to the tooling platform. The tooling trolley is fixed at the corresponding position of the tooling platform by the positioning device; at the same time, the tooling platform is also fixed on the tooling platform. The male part of the gas-electric module is installed, the female part of the gas-electric module is installed on the tooling trolley, and the tooling platform is electrically connected to the tooling trolley through the electrical module.

Wherein, the tooling trolley includes a trolley support, the upper part of the trolley support is a tooling installation platform, the bottom of the trolley support is fixedly equipped with walking wheels, the upper surface of the tooling installation platform is a plurality of tooling installation areas, and the lower surface of the tooling installation platform is provided with positioning holes , Support surface, jacking hole, jacking support surface and stopper.

Among them, the inner side of the trolley bracket is symmetrically installed with a guide plate, the side of the tooling platform is installed with a cam follower, and the guide plate slides along the cam follower.

Among them, the side of the trolley bracket is also provided with a travel switch contact, there are two travel switch contacts, and the two travel switch contacts are set in one high and one low setting; there is a travel switch on the side of the tooling platform, and there are two travel switches. , The two limit switches are set in one high and one low, and the high and low limit switch contacts are set corresponding to the high and low limit switches.

Wherein, the positioning device includes four sets of positioning mechanisms, of which two sets of positioning mechanisms are correspondingly driven by positioning pins, and the other two sets of positioning mechanisms are correspondingly driven by positioning blocks. The positioning machine of the positioning block is placed diagonally; the positioning hole on the tooling trolley is set corresponding to the positioning pin, and the supporting surface on the tooling trolley is set corresponding to the positioning block.

Wherein, each set of positioning mechanisms includes a positioning cylinder, each set of positioning mechanisms also includes a bottom plate and a sliding groove fixed on the bottom plate, and the positioning cylinder is fixed on the bottom plate through an adapter plate I; For the moving slider, the drive end of the positioning cylinder is fixedly connected to the slider through the adapter plate II. A positioning pin or positioning block is installed on the slider. The slider is driven by the driving end of the positioning cylinder to drive the positioning pin or positioning block to slide along. The groove moves laterally; the end of the chute is provided with a limit block.

Wherein, the jacking device includes four jacking cylinders, of which two jacking cylinders are driven by jacking pins, and the other two jacking cylinders are driven by jacking blocks corresponding to the jacking of the jacking pins. The cylinders are placed diagonally, and the jacking cylinder corresponding to the driving jacking block is placed diagonally. The jacking pin and jacking block are driven by the jacking cylinder to extend and retract in the longitudinal direction relative to the tooling platform; the jacking hole and the jack on the tooling trolley The lifting pins are arranged correspondingly, and the lifting supporting surface on the tooling trolley is arranged corresponding to the lifting block.

Wherein, the limiting device includes a front limiting device and a rear limiting device. The limiting device includes a limiting cylinder and a limiting block that is driven by the limiting cylinder and extending and retracting in the longitudinal direction; the block on the tooling trolley includes a front block And the rear stop, the front stop and the rear stop correspond to the front limit device and the rear limit device respectively.

Wherein, a sensor is also installed on the tooling platform, and the sensor is arranged corresponding to the sensor detection board on the side of the tooling trolley.

Beneficial effect

The quick change device of the present invention can realize the quick docking and switching between the tooling trolley and the tooling positioning platform, effectively saving the time of tooling switching when switching between different toolings, and can ensure the repeated positioning accuracy of the tooling trolley on the tooling positioning platform after switching. The push-in and exit of the tooling trolley is flexible and convenient, that is, the tooling trolley can be pushed in and out from the left or right; therefore, the quick change device of the present invention adopts the overall design of the tooling trolley, which is more convenient, fast and stable. Tooling (welding fixture) for different models.

Description of the drawings

Figure 1 is a front view of the quick change device of the present invention;

Figure 2 is a top view of the quick change device of the present invention;

Figure 3 is a schematic diagram of the structure of the quick change device of the present invention;

Figure 4 is a left side view of the quick change device of the present invention;

Figure 5 is a front view of the tooling trolley in the quick change device;

Figure 6 is a schematic diagram of the structure of the tooling trolley in the quick change device;

Figure 7 is a bottom view of the tooling trolley in the quick change device;

Figure 8 is a top view of the tooling trolley in the quick change device;

Figure 9 is a top view of the tooling platform in the quick change device;

Figure 10 is a schematic diagram of the structure of the tooling platform in the quick change device;

Figure 11 is a side view of the tooling platform in the quick change device;

Figure 12 is a schematic diagram of the structure of the positioning device;

Figure 13 is a top view of the positioning device;

Fig. 14 is a structural diagram of one of the positioning cylinders in the positioning device.

Embodiments of the present invention

According to the following examples, the present invention can be better understood. However, those skilled in the art can easily understand that the content described in the embodiments is only used to illustrate the present invention, and should not and will not limit the present invention described in detail in the claims.

As shown in Figures 1-14, the quick change device of the flexible switching tooling trolley of the present invention, the quick change device includes a tooling platform 2 and a tooling trolley 1 which is mutually matched and connected with the tooling platform 2; Lifting device 6 and positioning device 8, tooling platform 2 limits the tooling trolley 1 in the front and back direction through the limit device 5, tooling platform 2 vertically lifts and lowers the tooling trolley 1 through the lifting device 6, tooling platform 2 Fix the tooling trolley 1 on the tooling platform 2 through the positioning device 8. At the same time, the tooling platform 2 is also equipped with the male part 33 of the gas-electric module, and the tooling trolley 1 is equipped with the female part 13 of the gas-electric module, and the tooling platform 2 It is electrically connected to the tooling trolley 1 through the electrical module (the male part 33 of the pneumatic-electric module is powered by pneumatics and can move up and down. The female part 13 is fixedly installed on the tooling trolley 1, and the male part 33 is ejected by the cylinder. The male and female heads of the gas-electric module are matched to complete the connection of the gas circuit and the circuit, and the tooling trolley 1 is supplied with power and gas through the tooling platform 2).

The tooling trolley 1 includes a trolley support 24. The upper part of the trolley support 24 is a tooling installation platform, and the lower part of the trolley support 24 is fixedly equipped with walking wheels 21. Positioning, supporting, pressing and other devices, the specific form, structure and quantity are determined according to the specific tooling), the lower surface of the tooling installation platform is provided with positioning holes 15, supporting surfaces 26, jacking holes 14, jacking supporting surfaces 27 and stoppers twenty two.

A guide plate 3 is installed symmetrically on the inner side of the trolley bracket 24, and a cam follower 9 is installed on the side of the tooling platform 2 (the cam follower 9 is installed on both sides of the tooling platform 2, and a plurality of cam followers are installed on each side. The cam follower 9 cooperates with the guide plate 3 of the tooling trolley 1 to ensure the rapid positioning and switching of the tooling trolley 1. The cam follower 9 is used as a guide roller here), and the guide plate 3 follows the cam The device 9 slides. In addition, the contact gap between the guide plate 3 of the tooling trolley 1 and the cam follower 9 can be adjusted by adding or subtracting mounting shims.

The side of the trolley bracket 24 is also provided with a travel switch contact 11, there are two travel switch contacts 11, and the two travel switch contacts 11 are set in one high and one low setting; a travel switch 7 is provided on the side of the tooling platform 2, and the travel There are two switches 7 and the two limit switches 7 are also set in one high and one low setting, and the high and low limit switch contacts 11 are arranged correspondingly to the high and low limit switches 7. When the tooling trolley 1 is pushed in from the side of the tooling platform 2, the corresponding high limit switch contact 11 on the tooling trolley 1 will touch the corresponding high limit switch 7 on the tooling platform 2 (or the corresponding low position on the tooling trolley 1). The travel switch contact 11 of the tooling platform 2 will touch the corresponding low travel switch 7), thereby triggering the limit device 5 in the forward direction of the tooling trolley 1 to work, and the limit block 52 is raised; until the tooling trolley 1 is pushed to the The limit in the forward direction. The travel switch contact 11 triggers the work of the travel switch 7, the travel switch 7 transmits the signal to the external PLC, and the PLC triggers the action of the limit device 5.

The positioning cylinder 81, the limit cylinder 51, the jacking cylinder 61 and the cylinder driving the male part 33 longitudinally moving relative to the tooling platform 2 are controlled by their respective solenoid valves. The solenoid valves are connected to an external PLC through a cable, and the PLC controls the solenoid Reversing the valve to control the expansion and contraction of the cylinder; the positioning cylinder 81, the limit cylinder 51 and the jacking cylinder 61 are equipped with magnetic switches, which transmit the cylinder in-position signal to the PLC; the sensor 12 is connected to the external PLC through a cable.

The positioning device 8 includes four sets of positioning mechanisms 90, each set of positioning mechanisms 90 includes a positioning cylinder 81 (the positioning cylinder is a cylinder with its own in-position detection, the cylinder body has its own magnetic ring, and the cylinder is equipped with a magnetic switch to detect whether the cylinder has reached Designated position), each set of positioning mechanism 90 also includes a bottom plate 89 and a sliding groove 87 fixed on the bottom plate 89, the positioning cylinder 81 is fixed on the bottom plate 89 through the adapter plate I85, and the bottom plate 89 is fixed on the tooling platform 2; the sliding groove 87 There is a sliding block 84 that moves transversely along the sliding groove 87. The driving end 82 of the positioning cylinder 81 is fixedly connected to the sliding block 84 through an adapter plate II83. The sliding block 84 is equipped with a positioning pin 86 or a positioning block 91, and the sliding block 84 Driven by the driving end 82 of the positioning cylinder 81, the positioning pin 86 or the positioning block 91 is driven to move laterally along the sliding groove 87, and the end of the sliding groove 84 is provided with a limit block 88; among them, two sets of positioning mechanisms 90 of the four sets of positioning mechanisms Correspondingly driven is the positioning pin 86, the other two sets of positioning mechanisms 90 are correspondingly driven by the positioning block 32, the positioning mechanism 90 corresponding to the driving positioning pin 86 is placed diagonally, and the positioning mechanism 90 corresponding to the driving positioning block 32 is placed diagonally; The positioning hole 15 on the tooling trolley 1 is provided corresponding to the positioning pin 86, and the supporting surface 26 on the tooling trolley 1 is provided corresponding to the positioning block 32. The tooling platform 2 determines the positioning accuracy of the tooling trolley 1 through two positioning pins 86, and determines the stability of the tooling trolley 1 after positioning through four supporting surfaces (two supporting surfaces 26 and two lifting supporting surfaces 27).

In the positioning device 8, the positioning mechanism 90 that drives the positioning pin 86 is placed diagonally, and the positioning mechanism 90 that drives the positioning block 91 (positioning surface) is also placed diagonally, so as to ensure the stability of the tooling platform 2 to the tooling trolley 1 The balance of performance and positioning; each positioning mechanism 90 uses positioning cylinder 81 as the driving power to ensure that the positioning pin 86 and positioning block 32 are smoothly pushed to the corresponding position; the positioning pin 86 on the positioning mechanism 90 ensures The positioning accuracy of the tooling trolley 1 on the tooling platform 2 after switching.

Among them, the jacking device 6 includes four jacking cylinders 61 (the jacking cylinder is a cylinder with its own in-position detection, the cylinder body has its own magnetic ring, and the cylinder is equipped with a magnetic switch to detect whether the cylinder reaches the specified position), two of which are One jacking cylinder 61 is correspondingly driven by the jacking pin 62, and the other two jacking cylinders 61 are correspondingly driven by the jacking block 63. The jacking cylinder 61 corresponding to the driving jacking pin 62 is placed diagonally, corresponding to the driving jacking The jacking cylinder 61 of the block 63 is placed diagonally, the jacking pin 62 and the jacking block 63 are driven by the jacking cylinder 61 to extend and retract relative to the tooling platform 2 in the longitudinal direction; the jacking hole 14 and the jacking pin on the tooling trolley 1 62 is set correspondingly, and the jacking support surface 27 on the tooling trolley 1 is set corresponding to the jacking block 63. The longitudinal depth of the positioning hole 15 and the jacking hole 14 is adjusted by adding or reducing spacers to ensure the smooth positioning and coordination of the tooling trolley 1 and the positioning platform 2 of the quick change device. The jacking cylinder 61 is fixedly installed under the tooling platform 2.

Among them, the limit device 5 includes a front limit device and a rear limit device (the front limit device and the rear limit device can be converted, mainly according to whether the tooling trolley 1 is pushed in from the left side of the tooling platform 2 or from the right side. Enter, that is, relative to the forward direction of the tooling trolley 1), the limit device 5 includes a limit cylinder 51 and a limit block 52 that extends longitudinally under the drive of the limit cylinder 51; the stop block 22 on the tool trolley 1 Including the front stop and the rear stop (the front stop and the rear stop can be converted and are determined relative to the forward direction of the tooling trolley), the front stop and the rear stop are respectively related to the front limit device and the rear limit The bit devices are set corresponding to each other. The limit cylinder 51 is fixedly installed under the tooling platform 2.

Among them, a sensor 12 is also installed on the tooling platform 2 (the sensor 12 is an inductive sensor). The sensor 12 is arranged corresponding to the sensor detection board 23 on the side of the tooling trolley 1. The sensor detection board 23 is a sheet metal processing part, and the sensor detection board 23 is a thin metal plate. The sensor 12 is installed on the upper surface of the tooling platform 2. There are two sensors 12, which are symmetrically arranged on the upper surface of the tooling platform 2; one of the sensors 12 detects that the tooling trolley 1 is pushed to the position and triggers the limit device in the rear direction of the tooling trolley 1 5 work, the limit block 52 rises; when the tooling trolley 1 is lowered to the final positioning position, another sensor 12 detects whether the tooling trolley 1 is in place, and when it is lowered, it triggers the operation of the gas-electric module to complete the connection of the gas circuit and the circuit.

Among them, the tooling trolley 1 also includes a trolley handle 10, which is welded to the trolley bracket 24, and is installed at the front and back, so as to ensure the convenience of manual switching and transfer of the tooling trolley 1.

The working process of the quick change device of the present invention:

Six walking wheels 21 (universal wheels) are installed at the bottom of tooling trolley 1 to facilitate the transfer and switching of tooling trolley 1. A guide plate 3 is installed on the inner side of tooling trolley 1, and a cam follower 9 is installed on the outside of tooling platform 2, and the cam follows The actuator 9 facilitates the rapid positioning and switching of the tooling trolley 1. A travel switch contact 11 is installed on the side of the tooling trolley 1, and a travel switch 7 is installed on the tooling platform 2. When the tooling trolley 1 is pushed in from the side of the tooling platform 2, the travel switch contact 11 on the tooling trolley 1 will be Touch the travel switch 7 on the tooling platform 2 that is the same height as the travel switch contact 11, thereby triggering the limit device 5 in the forward direction of the tooling trolley 1 to work, the limit block 52 rises, when the tooling trolley 1 is pushed to the forward direction When the tooling platform 2 is at the limit position, a sensor 12 is installed on the tooling platform 2. After the sensor 12 detects that the tooling trolley 1 is pushed to the position, it triggers the limit device 5 behind the tooling trolley 1 to work, and the limit block 52 rises, thus The tooling trolley 1 is limited in the front and rear directions; the tooling platform 2 is equipped with a jacking device 6 and the tooling trolley 1 is installed with a jacking hole 14; after the tooling trolley 1 is limited in the front and rear directions, the jacking device 6 works, the jacking device 6 Ascend to lift the tooling trolley 1 into place; a positioning device 8 is installed on the tooling platform 2 and a positioning hole is installed on the tooling trolley 1; when the lifting device 6 lifts the tooling trolley 1 into place, the magnetic switch on the cylinder detects When the cylinder reaches the designated position, the corresponding signal is transmitted to the external PLC. The PLC triggers the positioning device 8 to work, and the positioning device 8 pushes the positioning pin 86 into place; after the positioning pin 86 of the positioning device 8 is pushed into place, the magnetic switch on the cylinder detects that the cylinder arrives Specify the position and transmit the corresponding signal to the external PLC. The PLC triggers the jacking device 6 to work, the jacking device 6 descends, the tooling trolley 1 drops to the final positioning position, and the positioning pin 86 extends into the positioning hole 16, so that the tooling trolley 1 is in position. Positioning on the tooling platform 2; the male part 33 of the gas-electric module is installed on the tooling platform 2, and the female part 13 of the gas-electric module is installed on the tooling cart 1; when the tooling cart 1 is lowered to the final positioning position, another sensor 12 After the tooling trolley 1 is detected, the driving mechanism (cylinder) of the male part 33 of the gas-electric module is triggered to work, the male part 33 is lifted out, and the male and female heads complete the coordination. The gas path and circuit of the tooling trolley 1 and the tooling platform 2 are connected; at this time, the tooling trolley 1 completes all the positioning work; work in the reverse order according to the above work sequence, and the tooling trolley 1 can be removed from the tooling platform 2.

Claims

A quick-change device for flexible switching tooling trolley, characterized in that: the quick-change device includes a tooling platform and a tooling trolley that is mutually matched and connected with the tooling platform; a limit device, a jacking device and a positioning device are installed on the tooling platform, The platform restricts the tooling trolley in the front and rear directions through the limit device. The tooling trolley is driven by the jacking device to move up or down relative to the tooling platform. The tooling trolley is fixed on the tooling platform by the positioning device; at the same time, it is on the tooling platform. The male part of the gas-electric module is also installed, the female part of the gas-electric module is installed on the tooling trolley, and the tooling platform is electrically connected to the tooling trolley through the electrical module.
The quick change device for a flexible switching tooling trolley according to claim 1, characterized in that: the tooling trolley includes a trolley support, the upper part of the trolley support is a tooling installation platform, the lower part of the trolley support is fixedly equipped with walking wheels, and the tooling installation platform The upper surface is a plurality of tooling installation areas, and the lower surface of the tooling installation platform is provided with positioning holes, support surfaces, jacking holes, jacking support surfaces and stoppers.
The quick change device for flexible switching tooling trolley according to claim 2, characterized in that: the inner side of the trolley bracket is symmetrically installed with a guide plate, the side of the tooling platform is installed with a cam follower, and the guide plate passes along the cam follower. The tooling platform slides laterally.
The quick change device for a flexible switching tooling trolley according to claim 2, characterized in that: the side of the trolley bracket is also provided with a travel switch contact, there are two travel switch contacts, and the two travel switch contacts are of one height. One low setting; there are two limit switches on the side of the tooling platform. The two limit switches are set in one high and one low setting. The high and low limit switch contacts and the high and low limit switches are set up and down correspondingly.
The quick change device for a flexible switching tooling trolley according to claim 1, wherein the positioning device includes four sets of positioning mechanisms, wherein the two sets of positioning mechanisms are correspondingly driven by positioning pins, and the other two sets of positioning mechanisms are correspondingly driven by For the positioning block, the positioning machine corresponding to the driving positioning pin constitutes a diagonal placement, and the positioning machine corresponding to the driving positioning block constitutes a diagonal placement; the positioning holes on the tooling trolley are set corresponding to the positioning pins, and the supporting surface on the tooling trolley and the positioning block Corresponding settings.
The quick change device for a flexible switching tooling trolley according to claim 5, characterized in that: each set of positioning mechanisms includes a positioning cylinder, and each set of positioning mechanisms further includes a bottom plate and a chute fixed on the bottom plate, and the positioning cylinder is transferred The plate I is fixed on the bottom plate; the sliding groove is provided with a sliding block that moves laterally along the sliding groove, and the driving end of the positioning cylinder is fixedly connected with the sliding block through an adapter plate II, and a positioning pin or positioning block is installed on the sliding block, The sliding block is driven by the driving end of the positioning cylinder to drive the positioning pin or the positioning block to move laterally along the sliding groove; the end of the sliding groove is provided with a limit block.
The quick change device for a flexible switching tooling trolley according to claim 1, wherein the jacking device includes four jacking cylinders, two of which are driven by jacking pins, and the other two jacking cylinders are driven by jacking pins. The lifting cylinder is correspondingly driven by the lifting block, and the lifting cylinder corresponding to the lifting pin is placed diagonally, and the lifting cylinder corresponding to the driving lifting block is placed diagonally. The lifting pin and the lifting block are placed in the lifting cylinder. The tooling platform is driven to expand and contract in the longitudinal direction; the jacking hole on the tooling trolley is set corresponding to the jacking pin, and the jacking support surface on the tooling trolley is set correspondingly to the jacking block.
The quick change device for a flexible switching tooling trolley according to claim 1, wherein the limit device includes a front limit device and a rear limit device, and the limit device includes a limit cylinder and is driven by the limit cylinder A limit block extending and retracting in the longitudinal direction; the block on the tooling trolley includes a front block and a rear block, and the front block and the rear block are respectively arranged corresponding to the front limit device and the rear limit device.
The quick change device for a flexible switching tooling trolley according to claim 1, wherein a sensor is also installed on the tooling platform, and the sensor is arranged corresponding to the sensor detection board on the side of the tooling trolley.