Large workpiece clamping and positioning device of gantry machining center

Abstract

The utility model relates to the technical field of workpiece clamping and positioning devices, and discloses a large workpiece clamping and positioning device of a gantry machining center, which comprises a fixed base, one side of the fixed base is fixedly connected with two hydraulic rods, and the tail ends of the hydraulic rods are fixedly connected with a sliding base. According to the large workpiece clamping and positioning device of the gantry machining center, through the arrangement of the driving mechanism, the hydraulic rods and the sliding bases, when a workpiece is positioned, the two hydraulic rods on one side are started according to the size of the workpiece, and after the sliding bases at the tail ends of the hydraulic rods move to proper positions, the workpiece is clamped and positioned; then the workpieces are placed on the surfaces of the sliding base and the fixed base, finally, a driving motor in a motor box is started, the driving motor drives a positive and negative screw rod at the tail end to rotate, then two threaded cylinders in threaded connection with the surfaces of the positive and negative screw rod move relatively, and therefore the effect of clamping and positioning the workpieces of different sizes is achieved; and the practicability of the equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to workpiece clamping positioning device technical field especially relates to a large workpiece clamping positioning device of gantry machining center. BACKGROUND

[0002] Gantry machining center is widely used in mechanical manufacturing, aerospace, shipbuilding and many other fields, is used to the high accuracy processing of large workpiece. In the processing, the clamping positioning of large workpiece is very important, it directly influences the machining accuracy, processing efficiency and the quality of workpiece.

[0003] The existing clamping positioning device is operated complicatedly, and the clamping and dismounting process consumes a lot of time, reduces processing efficiency, and workers need to spend more energy and time to adjust the clamping position and clamping force, which is labor-intensive and not conducive to mass production and efficient operation. Therefore, a large workpiece clamping positioning device of gantry machining center is provided. UTILITY MODEL CONTENTS

[0004] (I) technical problem solved

[0005] The utility model aims at providing a large workpiece clamping positioning device of gantry machining center to solve the problem that the existing clamping positioning device is operated complicatedly, and the clamping and dismounting process consumes a lot of time, reduces processing efficiency, and workers need to spend more energy and time to adjust the clamping position and clamping force, which is labor-intensive and not conducive to mass production and efficient operation.

[0006] (II) technical scheme

[0007] In order to realize the above object, the utility model is realized by the following technical scheme: a large workpiece clamping positioning device of gantry machining center, including fixed base, one side of the fixed base is fixedly connected with two hydraulic rods, the tail end of the hydraulic rod is fixedly connected with sliding base, the surface of fixed base and sliding base is fixedly connected with fixed block, the surface of two fixed blocks is fixedly connected with motor box, the inside of motor box is fixedly connected with drive mechanism, the surface of drive mechanism is fixedly connected with support plate, the surface of support plate is fixedly connected with pressure early warning mechanism, the drive mechanism includes drive motor fixedly connected in the inside of motor box, the output end of drive motor is fixedly connected with positive and negative screw rod, the surface of positive and negative screw rod is threadedly connected with two threaded barrels;The pressure early warning mechanism includes hydraulic cylinder fixedly connected on the surface of support plate, the output end of hydraulic cylinder is fixedly connected with positioning pad, the bottom of positioning pad is installed with pressure sensor, one side of pressure sensor is electrically connected with PLC controller through power line, one side of PLC controller is electrically connected with early warning lamp through power line.

[0008] As a further scheme of the utility model, the bottom of the threaded cylinder is fixedly connected with a limiting block, the limiting block is slidingly connected in the sliding groove formed on the surface of the fixed base and the sliding base, through the arrangement of the sliding groove, the limiting block is limited.

[0009] As a further scheme of the utility model, the bottom of the sliding base is fixedly connected with a sliding block, the surface of the sliding block is slidingly connected with a limiting sliding rail, through the arrangement of the limiting sliding rail, the sliding block is driven to slide.

[0010] As a further scheme of the utility model, the surface of the limiting sliding rail is provided with a base, the sliding base is slidingly connected to the surface of the base, and the fixed base is fixedly connected to the surface of the base, through the arrangement of the base, the equipment is supported.

[0011] As a further scheme of the utility model, the edge of one side of the top surface of the base is fixedly connected with a vertical rod, the top of the vertical rod is fixedly connected to the bottom of the PLC controller, through the arrangement of the PLC controller, the warning light is controlled to issue an alarm.

[0012] As a further scheme of the utility model, the bottom of the base is fixedly connected with two anti-skid blocks, and the two sides of the base are fixedly connected with two extension blocks, through the arrangement of the anti-skid blocks, the anti-skid effect is achieved.

[0013] As a further scheme of the utility model, the surface of the extension block is provided with a threaded hole, and a threaded column is threadedly connected in the threaded hole, through the arrangement of the threaded column, the stability of the equipment is improved.

[0014] (Three) beneficial effects

[0015] The utility model provides a large workpiece clamping and positioning device of gantry machining center has the following beneficial effects:

[0016] 1、the large workpiece clamping and positioning device of gantry machining center, through the setting of drive mechanism and hydraulic rod, sliding base, when positioning workpiece, according to the size of workpiece, start two hydraulic rods of one side, make the sliding base of the end of hydraulic rod move to the appropriate position after workpiece is placed on the surface of sliding base and fixed base, finally, start the drive motor in motor box, and the drive motor drives the end of the lead screw to rotate, and then the two threaded cylinders that the lead screw surface is threadedly connected move relatively, so that the effect of clamping and positioning workpieces of different sizes is realized, and the practicability of the equipment is improved.

[0017] 2、The large workpiece clamping and positioning device of the gantry machining center is provided with a pressure early warning mechanism, when in use, the hydraulic cylinder at the top of the supporting plate is started, the positioning pad at the tail of the hydraulic cylinder is tightly attached to the surface of the workpiece, and the pressure sensor is installed at the bottom of the positioning pad, when the pressure sensor reaches the preset value, the signal is transmitted to the PLC controller on one side for analysis and processing, finally the PLC controller controls the two early warning lights at the top to issue an alarm for warning, so that the force for positioning the workpiece is accurately controlled, the workpiece is prevented from being damaged due to excessive pressure, and the workpiece is prevented from being deviated due to insufficient pressure, and the machining accuracy is affected. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is a whole structure schematic view of the utility model;

[0019] Fig. 2 It is a driving mechanism structure schematic view of the utility model;

[0020] Fig. 3 It is a pressure early warning mechanism structure schematic view of the utility model;

[0021] Fig. 4 It is a fixed base structure schematic view of the utility model.

[0022] In the drawing: 1, fixed base; 2, hydraulic rod; 3, sliding base; 4, fixed block; 5, motor box; 6, driving mechanism; 601, driving motor; 602, positive and negative screw rod; 603, threaded cylinder; 7, supporting plate; 8, pressure early warning mechanism; 801, hydraulic cylinder; 802, positioning pad; 803, pressure sensor; 804, PLC controller; 805, early warning light; 9, limiting block; 10, sliding block; 11, limiting slide rail; 12, base; 13, vertical rod; 14, anti-skid block; 15, extension block; 16, threaded column. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative efforts belong to the protection scope of the utility model.

[0024] Please refer to Figs. 1 to 4The utility model provides a technical scheme: a large -scale workpiece clamping positioning device of gantry machining center, including fixed base 1, one side fixed connection of fixed base 1 has two hydraulic rod 2, the end fixed connection of hydraulic rod 2 has sliding base 3, the surface of fixed base 1 and sliding base 3 all are fixedly connected with fixed block 4, wherein the surface fixed connection of two fixed blocks 4 has motor box 5, the inside fixed connection of motor box 5 has drive mechanism 6, through the setting of drive mechanism 6 and hydraulic rod 2, sliding base 3, to realize the effect of clamping positioning to the workpiece of different size, improved the practicability of equipment, the surface fixed connection of drive mechanism 6 has support plate 7, the surface fixed connection of support plate 7 has pressure early warning mechanism 8, through the setting of pressure early warning mechanism 8, when using, to reach the effect of accurate control to the intensity of workpiece positioning, avoid the workpiece damage caused by excessive pressure, and the workpiece deviation caused by too small pressure, influence processing accuracy, drive mechanism 6 includes the drive motor 601 of fixed connection in the inside of motor box 5, the output fixed connection of drive motor 601 has positive and negative screw rod 602, the surface screw thread connection of positive and negative screw rod 602 has two threaded cylinders 603;Pressure early warning mechanism 8 includes the hydraulic cylinder 801 of fixed connection on the surface of support plate 7, the output fixed connection of hydraulic cylinder 801 has positioning pad 802, and the bottom of positioning pad 802 is installed pressure sensor 803, one side of pressure sensor 803 is electrically connected with PLC controller 804 through power line, and one side of PLC controller 804 is electrically connected with early warning lamp 805 through power line;

[0025] The bottom of threaded cylinder 603 is fixedly connected with limit block 9, and the limit block 9 is slidingly connected in the sliding groove formed on the surface of fixed base 1 and sliding base 3, and the sliding groove is arranged to limit the limit block 9;

[0026] The bottom of sliding base 3 is fixedly connected with sliding block 10, and the surface of sliding block 10 is slidingly connected with limit sliding rail 11, and the limit sliding rail 11 is arranged to drive the sliding block 10 to slide;

[0027] The surface of limit sliding rail 11 is mounted with base 12, the sliding base 3 is slidingly connected to the surface of the base 12, and the fixed base 1 is fixedly connected to the surface of the base 12, and the base 12 is arranged to support the equipment;

[0028] The edge of one side of the top surface of the base 12 is fixedly connected with stand 13, and the top of the stand 13 is fixedly connected to the bottom of the PLC controller 804, and the PLC controller 804 is arranged to control the early warning lamp 805 to issue an alarm;

[0029] The bottom of the base 12 is fixedly connected with two anti-skid blocks 14, and the two sides of the base 12 are fixedly connected with two extension blocks 15.

[0030] The surface of the extension block 15 is provided with a threaded hole, and a threaded column 16 is threadedly connected in the threaded hole.

[0031] The working steps of the device are as follows:

[0032] The first step is that when the workpiece is positioned, according to the size of the workpiece, two hydraulic rods 2 on one side are started, so that the sliding base 3 at the end of the hydraulic rod 2 moves to the appropriate position, and then the workpiece is placed on the surface of the sliding base 3 and the fixed base 1, finally, the driving motor 601 in the motor box 5 is started, the driving motor 601 drives the end of the forward and reverse screw rod 602 to rotate, and then the two threaded cylinders 603 threadedly connected on the surface of the forward and reverse screw rod 602 move relatively;

[0033] The second step is to start the hydraulic cylinder 801 on the top of the supporting plate 7, the hydraulic cylinder 801 drives the positioning pad 802 at the end to tightly adhere to the surface of the workpiece, and the pressure sensor 803 is installed at the bottom of the positioning pad 802, when the pressure sensor 803 reaches the preset value, the signal is transmitted to the PLC controller 804 on one side for analysis and processing, and finally the two warning lights 805 on the top are controlled by the PLC controller 804 to issue an alarm for warning.

[0034] It should be noted that the device structure and the drawings of the utility model mainly describe the principle of the utility model, and the setting of the power mechanism, the power supply system and the control system of the device is not completely described in the design principle technology, and under the premise that the above-mentioned utility model principle is understood by the person skilled in the art, the specific power mechanism, power supply system and control system can be clearly known, the control mode of the application file is automatically controlled by the controller, and the control circuit of the controller can be realized by simple programming of the person skilled in the art;

[0035] The standard parts used can be purchased from the market, and can be ordered according to the description and drawings, the specific connection mode of each part adopts the conventional bolt, rivet, welding and other conventional means in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the components known by the person skilled in the art, the structure and principle thereof are known by the person skilled in the art through the technical manual or through the conventional experimental method.

[0036] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A large workpiece clamping and positioning device of a gantry machining center, comprising a fixed base (1), characterized in that: The side of the fixed base (1) is fixedly connected with two hydraulic rods (2), the tail end of the hydraulic rod (2) is fixedly connected with a sliding base (3), the surface of the fixed base (1) and the sliding base (3) is fixedly connected with a fixed block (4), wherein the surface of the two fixed blocks (4) is fixedly connected with a motor box (5), the inside of the motor box (5) is fixedly connected with a drive mechanism (6), the surface of the drive mechanism (6) is fixedly connected with a support plate (7), the surface of the support plate (7) is fixedly connected with a pressure warning mechanism (8), The drive mechanism (6) comprises a drive motor (601) fixedly connected to the inside of the motor box (5), the output end of the drive motor (601) is fixedly connected with a positive and negative screw rod (602), the surface of the positive and negative screw rod (602) is threadedly connected with two threaded barrels (603); The pressure warning mechanism (8) comprises a hydraulic cylinder (801) fixedly connected to the surface of the support plate (7), the output end of the hydraulic cylinder (801) is fixedly connected with a positioning pad (802), the bottom of the positioning pad (802) is provided with a pressure sensor (803), one side of the pressure sensor (803) is electrically connected with a PLC controller (804) through a power line, one side of the PLC controller (804) is electrically connected with a warning light (805) through a power line.

2. A large workpiece clamping and positioning device of a gantry machining center according to claim 1, characterized in that: The bottom of the threaded barrel (603) is fixedly connected with a limiting block (9), the limiting block (9) is slidingly connected in the sliding groove formed in the surface of the fixed base (1) and the sliding base (3).

3. A large workpiece clamping and positioning device of a gantry machining center according to claim 1, characterized in that: The bottom of the sliding base (3) is fixedly connected with a sliding block (10), the surface of the sliding block (10) is slidingly connected with a limiting slide rail (11).

4. A large workpiece clamping and positioning device of a gantry machining center according to claim 3, characterized in that: The surface of the limiting slide rail (11) is provided with a base (12), the sliding base (3) is slidingly connected to the surface of the base (12), and the fixed base (1) is fixedly connected to the surface of the base (12).

5. A large workpiece clamping and positioning device of a gantry machining center according to claim 4, characterized in that: The edge of one side of the top surface of the base (12) is fixedly connected with a vertical rod (13), the top of the vertical rod (13) is fixedly connected to the bottom of the PLC controller (804).

6. A large workpiece clamping and positioning device of a gantry machining center according to claim 4, characterized in that: The bottom of the base (12) is fixedly connected with two anti-skid blocks (14), and the two sides of the base (12) are fixedly connected with two extension blocks (15).

7. A large workpiece clamping and positioning device of a gantry machining center according to claim 6, characterized in that: The surface of the extension block (15) is provided with a threaded hole, and the inside of the threaded hole is threadedly connected with a threaded column (16).

Images