CN214444858U

CN214444858U - Intelligent boring and milling machining center closing device of robot part

Info

Publication number: CN214444858U
Application number: CN202120513180.9U
Authority: CN
Inventors: 吴志强
Original assignee: Changzhou Vocational Institute of Light Industry
Current assignee: Changzhou Vocational Institute of Light Industry
Priority date: 2021-03-10
Filing date: 2021-03-10
Publication date: 2021-10-22
Anticipated expiration: 2031-03-10

Abstract

The utility model belongs to the technical field of numerical control machining center equipment technique and specifically relates to a intelligent boring and milling machining center closing device of robot part is related to, including support and clamp plate, clamp plate slidable mounting is on the side of support, be equipped with the fixed orifices that matches with the work piece on the clamp plate, still include: the balance assembly is used for balancing the gravity of the pressure plate; energy storage subassembly and piston rod subassembly, including first cylinder body, second cylinder body and oil tank, through backflow oil pipe, closed oil circuit is constituteed in output oil pipe and overflow oil pipe's intercommunication, when using, balanced subassembly tractive clamp plate keeps the state that the clamp plate lifted up usually, utilize the pressure of work piece on the workstation, the spring of compression energy storage subassembly carries out the energy storage, utilize the piston rod subassembly to carry out the pulling force adjustment to the clamp plate, only need three control valve on the control oil circuit can accomplish the action of lifting up and pushing down of clamp plate, the device does not need extra power, reliable operation, workpiece clamping easy operation is convenient, the clamping is efficient.

Description

Intelligent boring and milling machining center closing device of robot part

Technical Field

The utility model belongs to the technical field of numerical control machining center equipment technique and specifically relates to a robot part intelligent boring and milling machining center closing device is related to.

Background

The box work piece among the large-scale robot part needs to use and falls to the ground the boring and milling machining center to process, and in order to guarantee relative accuracy, a plurality of sides of work piece need a clamping to accomplish processing, need adopt the top to compress tightly the clamping mode. The device for additionally installing the pressing plate on the upright is generally used for clamping, the pressing plate is firstly connected and fixed with the top of a workpiece, and then the pressing plate is fixed on the upright arranged beside the workpiece. The pressing plate of the large-sized workpiece pressing device is heavy, so that the pressing plate needs to be loaded, unloaded and adjusted frequently by using a travelling crane, and the clamping efficiency is low in the mode. Meanwhile, the pressing plate is higher in position, so that the pressing plate is difficult to fixedly install and adjust the workpiece or the stand column.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve the problems that a pressing device of a common robot part boring and milling machining center is low in assembling and disassembling efficiency and large in operation difficulty of fixed installation and adjustment, the pressing device of the robot part intelligent boring and milling machining center is provided.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an intelligent boring and milling machining center closing device of robot part, includes support and clamp plate, clamp plate slidable mounting is on the side of support, be equipped with the fixed orifices on the clamp plate, still include:

the balance assembly comprises a connecting rope, a left guide wheel, a right guide wheel, a balance weight and a stop block, wherein the left guide wheel and the right guide wheel are fixed at the top end of the support, one end of the connecting rope is fixedly connected with the pressing plate, the other end of the connecting rope sequentially bypasses the left guide wheel and the right guide wheel and then is fixedly connected with the balance weight, the weight of the balance weight is greater than that of the pressing plate, and the stop block is fixed on the support and positioned below the balance weight;

the energy storage assembly comprises a first cylinder body, a first piston, a second piston, a spring and a stop block, the first cylinder body is fixed in a workbench of the machining center, the first piston and the second piston are both slidably mounted in an oil cavity of the first cylinder body, the lower end of the spring is connected with the upper end face of the first piston, the upper end of the spring is connected with the lower end face of the second piston, the stop block is arranged at the upper end of the first cylinder body, and a rodless cavity is formed between the bottom of the oil cavity of the first cylinder body and the first piston;

and a piston rod assembly, the piston rod assembly comprises a second cylinder body, a piston rod, an output oil pipe, a return oil pipe, an overflow oil pipe and an oil tank, the oil tank is fixed on the bracket, the second cylinder body is fixed on the bracket, the third piston on the piston rod is slidably arranged in the oil cavity of the second cylinder body, the upper end of the oil return pipe is connected with the pressure plate, a rod cavity is formed between the top end part of the oil cavity of the second cylinder body and the third piston, the top end of the oil return pipe is communicated with the bottom of the oil tank, the bottom end of the overflow oil pipe is communicated with the rodless cavity, and the other end of the oil tank is communicated with the bottom of the oil tank, a first control valve is arranged on the overflow oil pipe, a second control valve is arranged on the backflow oil pipe, and a third control valve is arranged on the output oil pipe.

In this scheme, clamp plate slidable mounting simplifies the clamping action on the support, reduces the adjustment degree of difficulty. Meanwhile, the balance assembly is arranged on the support, and the gravity of the balance weight is utilized to reduce the power required by the vertical adjustment of the pressing plate. The hydraulic cylinder is characterized in that the hydraulic cylinder is provided with an energy storage assembly and a piston rod assembly, the first cylinder, the second cylinder and the oil tank form a closed loop through a backflow oil pipe, an output oil pipe and an overflow oil pipe, the first cylinder is communicated with the second cylinder through the output oil pipe, the second cylinder is communicated with the oil tank through the overflow oil pipe, the first cylinder is communicated with the oil tank through the backflow oil pipe, and hydraulic oil is filled in the cylinders and the oil pipe. The first control valve is used for controlling the opening and closing of the overflow oil pipe, the second control valve is used for controlling the opening and closing of the return oil pipe, and the third control valve is used for controlling the opening and closing of the output oil pipe.

The return oil pipe and the output oil pipe which are communicated with the first cylinder body are normally in a closed state, the first piston and the first cylinder body form a closed space, and the spring above the first piston supports the second piston, so that the upper end of the second piston leaks out of the workbench. When the workpiece is hoisted above the energy storage assembly of the workbench, the second piston is pressed downwards, and the spring is compressed to store energy.

When a workpiece is pressed, the return oil pipe and the overflow oil pipe are closed, the output oil pipe is opened, the spring pushes the second piston to move downwards, hydraulic oil enters the second cylinder body through the output oil pipe and pushes the piston rod of the piston rod assembly to move downwards, the pressing plate moves towards the workpiece and presses the workpiece tightly under the action of the piston rod, then the output oil pipe is closed, and the mounting operation of the pressing plate and the workpiece can be carried out.

After the workpiece is machined, the pressing plate is lifted, the overflow oil pipe is opened, the balance weight drives the pressing plate and the piston rod to move upwards until the stop block blocks the balance weight or the pressing plate, the piston rod pushes hydraulic oil to enter the oil tank through the overflow oil pipe, and the return oil pipe is opened after the overflow oil pipe is closed.

When the workpiece is unloaded from the workbench, the first piston drives the spring and the second piston to move upwards under the action of the pressure of hydraulic oil in the first cylinder body until the second piston abuts against the stop block to complete the reset action, and then the return oil pipe is closed.

The energy storage assembly is stored through the installation of the workpiece, the clamping is completed through the action of the control valve on the piston rod, the energy storage assembly is reset under the action of the gravity of the hydraulic oil, and the loading and unloading operation of the workpiece is completed through the circulation. The lifting and pressing actions of the pressing plate can be completed only by controlling three control valves on the oil circuit.

Furthermore, a steel ball is arranged on the upper end face of the second piston in a rolling mode.

The steel ball is arranged on the upper end face of the second piston in a rolling mode, so that the horizontal adjustment of a workpiece when the workpiece is placed on the workbench is facilitated, and the workpiece is prevented from colliding the second piston.

Furthermore, a plurality of mounting grooves are formed in the pressing plate, and bolt holes are formed in the support and matched with the mounting grooves.

After the pressing plate and the workpiece are installed and fixed, the pressing plate is locked on the support through the installation groove by using the bolts, so that the connection rigidity of the pressing plate and the support is improved, and the workpiece clamping stability is enhanced.

Furthermore, the output oil pipe, the overflow oil pipe and the return oil pipe are all steel pipes.

The elasticity of the steel pipe is small, and the influence on the control effect caused by expansion of the oil pipe under high pressure is avoided.

The utility model has the advantages that: the utility model discloses the intelligent boring and milling machining center closing device of robot part is when using, the state that the clamp plate lifted up usually is kept to balanced subassembly tractive clamp plate, utilize the pressure of work piece on the workstation, the spring of compression energy storage subassembly carries out the energy storage, utilize the piston rod subassembly to carry out the pulling force adjustment to the clamp plate, only need three control valve on the control scheme can accomplish lifting and pushing down the action of clamp plate, the device does not need extra power, the reliable operation, and work piece clamping easy operation is convenient, the clamping is efficient.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of the present invention with a pressure plate lifted;

fig. 2 is a schematic view of the present invention with the pressing plate pressed;

fig. 3 is a top view of the present invention;

fig. 4 is a right side view of the platen of the present invention;

fig. 5 is an enlarged view of the piston rod assembly of the present invention in a state where the pressing plate is pressed down;

fig. 6 is an enlarged view of the piston rod assembly of the present invention in a state where the pressing plate is lifted;

FIG. 7 is an enlarged view of the energy storage assembly of the present invention with the work piece unloaded from the table;

FIG. 8 is an enlarged view of the energy storage assembly of the present invention in a work piece loading state of the table;

fig. 9 is an enlarged view of the energy storage assembly of the present invention in an open output tubing condition.

In the figure: 1. the hydraulic control device comprises a support, 2, a pressure plate, 201, a fixing hole, 202, a mounting groove, 3, a balance assembly, 301, a connecting rope, 302, a left guide wheel, 303, a right guide wheel, 304, a balance weight, 305, a stop block, 4, an output oil pipe, 5, a return oil pipe, 6, an energy storage assembly, 601, a first cylinder, 602, a first piston, 603, a spring, 604, a second piston, 605, a stop block, 607, a rodless cavity, 608, a steel ball, 7, a piston rod assembly, 701, a second cylinder, 702, a piston rod, 7021, a third piston, 703, a overflow oil pipe, 704, an oil tank, 705, a first control valve, 706, a second control valve, 707, a third control valve, 708, a rod cavity, 8, a workpiece, 9, a workbench, 10 and a machining center.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic drawings, which illustrate the basic structure of the invention only in a schematic way, and thus show only the components that are relevant to the invention, and the directions and references (e.g., upper, lower, left, right, etc.) may be used only to help describe the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.

As shown in fig. 1-9, a pressing device of an intelligent boring and milling center for robot parts comprises a support 1 and a pressing plate 2, wherein the pressing plate 2 is slidably mounted on a side surface of the support 1, the pressing plate 2 is provided with a fixing hole 201, and the pressing device further comprises:

the balance assembly 3 comprises a connecting rope 301, a left guide wheel 302, a right guide wheel 303, a balance weight 304 and a stop block 305, wherein the left guide wheel 302 and the right guide wheel 303 are fixed at the top end of the support 1, one end of the connecting rope 301 is fixedly connected with the pressure plate 2, the other end of the connecting rope sequentially bypasses the left guide wheel 302 and the right guide wheel 303 and is fixedly connected with the balance weight 304, the weight of the balance weight 304 is greater than that of the pressure plate 2, and the stop block 305 is fixed on the support 1 and is positioned below the balance weight 304;

the energy storage assembly 6 comprises a first cylinder 601, a first piston 602, a second piston 604, a spring 603 and a stop block 605, wherein the first cylinder 601 is fixed in a workbench 9 of a machining center, the first piston 602 and the second piston 604 are both slidably mounted in an oil cavity of the first cylinder 601, the lower end of the spring 603 is connected with the upper end surface of the first piston 602, the upper end of the spring 603 is connected with the lower end surface of the second piston 604, the stop block 605 is arranged at the upper end of the first cylinder 601, and a rodless cavity 607 is formed between the bottom of the oil cavity of the first cylinder 601 and the first piston 602;

and a piston rod assembly 7, the piston rod assembly 7 includes a second cylinder 701, a piston rod 702, an output oil pipe 4, a return oil pipe 5, an overflow oil pipe 703 and an oil tank 704, the oil tank 704 is fixed on the bracket 1, the second cylinder 701 is fixed on the bracket 1, a third piston 7021 on the piston rod 702 is slidably mounted in the oil chamber of the second cylinder 701, and the upper end thereof is connected with the pressing plate 2, a rod chamber 708 is formed between the top end of the oil chamber of the second cylinder 701 and the third piston 7021, the top end of the return oil pipe 5 is communicated with the bottom of the oil tank 704, and the bottom end thereof is communicated with the rodless chamber 607, the top end of the output oil pipe 4 is communicated with the rod chamber 708, and the bottom end thereof is communicated with the rodless chamber 607, one end of the overflow oil pipe 703 is communicated with the rod chamber 708, and the other end thereof is communicated with the bottom of the oil tank 704, a first control valve is arranged on the overflow oil pipe 703, a second control valve 706 is arranged on the return oil pipe 5, and a third control valve 707 is arranged on the output oil pipe 4.

Preferably, the connecting rope 301 is a steel wire rope, and the left guide wheel 302 and the right guide wheel 303 are both fixed pulleys;

preferably, the connecting rope 301 is a chain, and the left guide wheel 302 and the right guide wheel 303 are chain wheels;

preferably, at least one group of the connecting rope 301, the left guide wheel 302 and the right guide wheel 303 is provided;

preferably, the pressure plate 2 is fixed on the bracket 1 through a slide block guide rail unit;

preferably, the piston rod assembly 7 is fixed below the pressure plate 2, and the piston rod 702 is connected with the lower end surface of the pressure plate 2.

Preferably, the piston rod assembly 7 is fixed between the pressure plate 2 and the bracket 1, and the piston rod 702 is connected with the side surface of the adjacent bracket 1 of the pressure plate 2.

Preferably, the upper end surface of the second piston 604 is provided with a steel ball 608 in a rolling manner.

Preferably, the pressing plate 2 is provided with a plurality of mounting grooves 202, and the bracket 1 is provided with bolt holes matched with the mounting grooves 202.

After the clamping operation of the pressure plate 2 and the workpiece 8 is finished, the pressure plate 2 is fastened on the bracket 1 by bolts.

Preferably, the output oil pipe 4, the overflow oil pipe 703 and the return oil pipe 5 are all steel pipes.

When the pressing device of the intelligent boring and milling machining center of the robot component is used, the pressing device is fixed on one side, opposite to the machining center 10, of the workbench 9, when the workpiece 8 is not installed on the workbench 9, the upper end of the second piston 604 of the energy storage assembly 6 leaks out of the table surface of the workbench 9, and the return oil pipe 5 and the output oil pipe 4 which are communicated with the first cylinder 601 are in a closed state. The platen 2 is lifted by the pulling of the balance weight 304.

When the workpiece 8 is lifted above the energy storage assembly 6 of the table 9, the second piston 604 is pressed by the workpiece 8 and the spring 603 is compressed.

When the pressing plate 2 is ready to press-fit a workpiece, the return oil pipe 5 and the overflow oil pipe 703 are closed, the output oil pipe 4 is opened, the spring 603 pushes the second piston 604 to move downwards, hydraulic oil in the first cylinder 601 enters the second cylinder 701 through the output oil pipe 4 and pushes the piston rod 702 of the piston rod assembly 7 to move downwards, the pressing plate 2 moves towards the workpiece 8 and presses the workpiece 8 under the action force of the piston rod 702, then the output oil pipe 4 is closed, and the mounting operation of the pressing plate 2 and the workpiece 8 can be performed.

After the workpiece 8 is machined, the pressing plate 2 is lifted, the overflow oil pipe 703 is opened, the pressing plate 2 and the piston rod 702 are driven by the balance weight 304 to move upwards until the stop block 305 blocks the balance weight 304 or the pressing plate 2, the piston rod 702 pushes hydraulic oil to enter the oil tank 704 through the overflow oil pipe 703, and the return oil pipe 5 is opened after the overflow oil pipe 703 is closed.

When the workpiece 8 is unloaded from the workbench 9, the pressure above the second piston 604 disappears, the first piston 602 drives the spring 603 and the second piston 604 to move upwards under the action of the pressure of the hydraulic oil in the first cylinder 601 until the second piston 604 abuts against the stop block 605, the reset action is completed, and then the return oil pipe 5 is closed.

The energy storage assembly 6 is stored through the installation of the workpiece 8, the action of the piston rod 702 is controlled through the control valve, the clamping of the pressing plate 2 and the workpiece 8 is completed, the energy storage assembly 6 automatically resets under the action of the gravity of hydraulic oil, and the loading and unloading operation of the workpiece 8 is completed through the circulation.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides an intelligent boring and milling machining center closing device of robot part, includes support (1) and clamp plate (2), clamp plate (2) slidable mounting is on the side of support (1), be equipped with fixed orifices (201) on clamp plate (2), its characterized in that: further comprising:

the balance assembly (3) comprises a connecting rope (301), a left guide wheel (302), a right guide wheel (303), a balance weight (304) and a stop block (305), wherein the left guide wheel (302) and the right guide wheel (303) are fixed at the top end of the support (1), one end of the connecting rope (301) is fixedly connected with the pressure plate (2), the other end of the connecting rope sequentially bypasses the left guide wheel (302) and the right guide wheel (303) and then is fixedly connected with the balance weight (304), the weight of the balance weight (304) is greater than that of the pressure plate (2), and the stop block (305) is fixed on the support (1) and is located below the balance weight (304);

the energy storage assembly (6) comprises a first cylinder body (601), a first piston (602), a second piston (604), a spring (603) and a stop block (605), the first cylinder body (601) is fixed in a workbench (9) of a machining center, the first piston (602) and the second piston (604) are both slidably mounted in an oil cavity of the first cylinder body (601), the lower end of the spring (603) is connected with the upper end face of the first piston (602), the upper end of the spring is connected with the lower end face of the second piston (604), the stop block (605) is arranged at the upper end of the first cylinder body (601), and a rodless cavity (607) is formed between the cavity bottom of the oil cavity of the first cylinder body (601) and the first piston (602);

and a piston rod assembly (7), the piston rod assembly (7) comprises a second cylinder body (701), a piston rod (702), an output oil pipe (4), a return oil pipe (5), an overflow oil pipe (703) and an oil tank (704), the oil tank (704) is fixed on the support (1), the second cylinder body (701) is fixed on the support (1), a third piston (7021) on the piston rod (702) is slidably mounted in an oil cavity of the second cylinder body (701), the upper end of the third piston is connected with the pressing plate (2), a rod cavity (708) is formed between the top end of the oil cavity of the second cylinder body (701) and the third piston (7021), the top end of the return oil pipe (5) is communicated with the bottom of the oil tank (704), the bottom end of the return oil pipe is communicated with the rodless cavity (607), the top end of the output oil pipe (4) is communicated with the rod cavity (708), and the bottom end of the rodless cavity (607), one end of the overflow oil pipe (703) is communicated with the rod cavity (708), the other end of the overflow oil pipe is communicated with the bottom of the oil tank (704), a first control valve (705) is arranged on the overflow oil pipe (703), a second control valve (706) is arranged on the return oil pipe (5), and a third control valve (707) is arranged on the output oil pipe (4).

2. The intelligent boring and milling machining center pressing device for the robot component as claimed in claim 1, wherein: and a steel ball (608) is arranged on the upper end surface of the second piston (604) in a rolling manner.

3. The intelligent boring and milling machining center pressing device for the robot component as claimed in claim 1, wherein: be equipped with a plurality of mounting grooves (202) on clamp plate (2), match with mounting groove (202) on support (1) and set the bolt hole.

4. The intelligent boring and milling machining center pressing device for the robot component as claimed in claim 1, wherein: the output oil pipe (4), the overflow oil pipe (703) and the return oil pipe (5) are all steel pipes.