Four-axis hydraulic tool clamp for vertical machining of supporting body

Abstract

The utility model relates to the technical field of support body clamps, in particular to a four-axis hydraulic tool clamp for vertical machining of a support body, which comprises a bottom plate, a block-up block is fixedly mounted on the upper surface of the bottom plate, a tailstock and a four-axis turntable are arranged on the upper surface of the block-up block, L-shaped plates are fixedly mounted on the disc surfaces of the tailstock and the four-axis turntable, and the L-shaped plates are fixedly mounted on the disc surfaces of the L-shaped plates. Two L-shaped plates are arranged on the base plate, a bridge plate is arranged above the base plate and fixedly installed between the two L-shaped plates, a rotary distributor is arranged on one side of the tailstock, and a driving shaft of the rotary distributor is fixedly connected with the tailstock; the surface of the bridge plate is provided with a plurality of cavities used for keeping away from a reverse face machining tool, the surface of the bridge plate is provided with a positioning block, the center of the bridge plate is provided with an installation opening, a centering mechanism is arranged in the installation opening, and the surface of the bridge plate is fixedly provided with a plurality of clamping oil cylinder assemblies. The fixture adopts a four-shaft structure, can process front and back surfaces through one-time clamping, improves the production efficiency, and improves the product precision.

Description

Technical Field

[0001] The utility model relates to the technical field of support body clamps, in particular to a four-axis hydraulic tooling clamp for a support body. Background Art

[0002] The existing support body needs to be processed on its surface by a tool during the production process. During the processing, in order to prevent the support body from being offset in position, the support body needs to be fixed by a fixture.

[0003] Traditional support fixtures mostly adopt a flat-plate design, and the front and back sides need to be processed twice, which has low production efficiency. In addition, the two-step clamping of the workpiece will inevitably produce secondary installation errors, affecting the processing accuracy of the workpiece. Utility Model Content

[0004] The purpose of the utility model is to solve the following shortcomings in the prior art: traditional support body fixtures mostly adopt a flat plate design, and the front and back sides need to be processed twice, which has low production efficiency, and the workpiece is clamped in two sequences, which will inevitably produce secondary installation errors and affect the processing accuracy of the workpiece. A four-axis hydraulic fixture for a support body is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A four-axis hydraulic fixture for supporting a vertical body, comprising a bottom plate, a pad block fixedly mounted on the upper surface of the bottom plate, a tailstock and a four-axis turntable arranged on the upper surface of the pad block, an L-shaped plate fixedly mounted on the disk surfaces of the tailstock and the four-axis turntable, a bridge plate fixedly mounted between two L-shaped plates, a rotary distributor arranged on one side of the tailstock, and a driving shaft of the rotary distributor fixedly connected to the tailstock;

[0007] The bridge plate surface is provided with a plurality of cavities for avoiding reverse processing tools, the bridge plate surface is provided with positioning blocks, and a mounting opening is provided at the center, a centering mechanism is provided in the mounting opening, and a plurality of clamping cylinder assemblies are fixedly provided on the bridge plate surface.

[0008] Preferably, the centering mechanism includes a three-jaw chuck, an anti-chip cover, a plurality of female jaws and a plurality of auxiliary jaws, the three-jaw chuck is vertically slidably installed at the center of the bridge plate, the anti-chip cover is fixedly connected to the three-jaw chuck, the side wall of the anti-chip cover is circularly provided with a plurality of mounting grooves, a rotating shaft is horizontally mounted in the mounting groove, the plurality of female jaws are respectively rotatably sleeved on the plurality of rotating shafts, the plurality of auxiliary jaws are respectively fixedly installed on the upper surfaces of the plurality of female jaws, and the lower surfaces are all against the upper surface of the bridge plate.

[0009] Preferably, the centering mechanism also includes a telescopic cylinder for driving the three-turn chuck to move, the telescopic cylinder includes a cylinder body, a rear cover and a piston, the cylinder body is fixedly mounted on the lower surface of the bridge plate, and the piston is fixedly connected to the three-jaw chuck.

[0010] Preferably, the clamping cylinder assembly includes a cylinder, a mother pressure plate, a pad and a sub-pressure plate, the cylinder is fixedly mounted on the upper surface of the bridge plate, the mother pressure plate is fixedly mounted on the driving shaft of the cylinder, the sub-pressure plate is fixedly mounted on the upper surface of the mother pressure plate, and the pad is fixedly mounted on the lower surface of the sub-pressure plate.

[0011] Preferably, a plurality of flushing holes are provided on the surface of the bottom plate.

[0012] Preferably, an anti-slip layer is bonded to the lower surface of the cushion block, and the material of the anti-slip layer is rubber.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. This fixture adopts a four-axis structure and can process both the front and back sides in one clamping, which improves production efficiency and product accuracy;

[0015] 2. It has air detection and water flushing functions, which can flush away iron filings in time and provide feedback on the clamping status of the workpiece, and can be used for automated production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front structural schematic diagram of a four-axis hydraulic fixture for supporting a vertical body proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the top view of the structure of a bridge plate in a four-axis hydraulic fixture for supporting a vertical body proposed by the utility model;

[0018] Figure 3 The utility model is a three-dimensional structural schematic diagram of a centering mechanism used in a support body vertical four-axis hydraulic fixture.

[0019] In the figure: 01 base plate, 02 spacer block, 03 L-type plate, 04 bridge plate, 05 tailstock, 06 four-axis turntable, 07 clamping cylinder assembly, 08 positioning block, 09 centering mechanism, 901 three-jaw chuck, 902 telescopic cylinder, 903 chip cover, 904 mother jaw, 905 auxiliary jaw, 10 rotary distributor. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] The terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the present utility model are only for the convenience of description and are not used to limit the scope of application of the present utility model. Changes or adjustments in their relative relationships shall be regarded as the scope of application of the present utility model without substantially changing the technical content.

[0022] Reference Figure 1-Figure 3 A four-axis hydraulic fixture for supporting a vertical body includes a bottom plate 01, a pad block 02 is fixedly installed on the upper surface of the bottom plate 01, a tailstock 05 and a four-axis turntable 06 are arranged on the upper surface of the pad block 02, an L-shaped plate 03 is fixedly installed on the disk of the tailstock 05 and the four-axis turntable 06, a bridge plate 04 is arranged above the bottom plate 01, the bridge plate 04 is fixedly installed between two L-shaped plates 03, a rotary distributor 10 is arranged on one side of the tailstock 05, and the driving shaft of the rotary distributor 10 is fixedly connected to the tailstock 05, so as to facilitate the supply of high-pressure oil to the oil channel during the rotation process;

[0023] The surface of the bridge plate 04 is provided with a plurality of cavities for avoiding the reverse processing tool, the surface of the bridge plate 04 is provided with a positioning block 08, and a mounting opening is provided at the center, a centering mechanism 09 is provided in the mounting opening, and the centering mechanism 09 includes a three-jaw chuck 901, a chip prevention cover 903, a plurality of female claws 904 and a plurality of auxiliary claws 905, the three-jaw chuck 901 is vertically slidably installed at the center of the bridge plate 04, the chip prevention cover 903 is fixedly connected to the three-jaw chuck 901, and a plurality of mounting grooves are provided in a circular shape on the side wall of the chip prevention cover 903, and a rotating member is horizontally mounted in the mounting groove. Axles, multiple female claws 904 are respectively rotatably sleeved on multiple rotating shafts, multiple auxiliary claws 905 are respectively fixedly installed on the upper surfaces of the multiple female claws 904, and the lower surfaces are all against the upper surface of the bridge plate 04, the centering mechanism 09 also includes a telescopic cylinder 902 for driving the three-jaw chuck 901 to move, the telescopic cylinder 902 includes a cylinder body, a rear cover and a piston, the cylinder body is fixedly installed on the lower surface of the bridge plate 04, and the piston is fixedly connected to the three-jaw chuck 901, and the chip cover 903 can prevent iron chips generated during the processing from entering the inside of the three-jaw chuck 901;

[0024] First, place the support to be processed at the center of the upper surface of the bridge plate 04, then start the telescopic cylinder 902 to control the three-jaw chuck 901 to move downward. At this time, the multiple auxiliary claws 905 are blocked by the upper surface of the bridge plate 04 and will rotate, thereby clamping the support. At the same time, the support can be pushed to the middle of the bridge plate 04 to achieve centering of the support;

[0025] A plurality of clamping cylinder assemblies 07 are fixedly arranged on the surface of the bridge plate 04. The clamping cylinder assemblies 07 include a cylinder, a mother pressure plate, a cushion block and a sub-pressure plate. The cylinder is fixedly mounted on the upper surface of the bridge plate 04, the mother pressure plate is fixedly mounted on the driving shaft of the cylinder, the sub-pressure plate is fixedly mounted on the upper surface of the mother pressure plate, and the sub-pressure plate is fixedly mounted on the upper surface of the mother pressure plate by screw and nut fixings, so that it is easy to replace the sub-pressure plate. When changing the type, only the sub-pressure plate needs to be replaced. The cushion block is fixedly mounted on the lower surface of the sub-pressure plate. The cylinder is equipped with a relaxation gas detection, which can generate a detection signal when relaxing, so as to realize interactive operation with the robot.

[0026] Then start multiple cylinders to move multiple mother pressure plates, multiple sub-pressure plates and multiple pads downward together until the multiple pads are tightly against the upper surface of the support body. At this time, the support body can be fixed, and then the upper surface of the support body is processed by the tool. After the processing is completed, start the rotary distributor 10 to control the bridge plate 04 to rotate 180 degrees with the fixed support body. At this time, the lower surface of the support body will be located at the top, and then the tool is used to pass through multiple cavities to process the lower surface of the support body.

[0027] A plurality of flushing holes are provided on the surface of the bottom plate 01. During the rotation of the four axes, water is flushed upward through the plurality of flushing holes and acts on the surface of the support body, thereby achieving the effect of cleaning the workpiece.

[0028] An anti-slip layer is bonded to the lower surface of the pad. The material of the anti-slip layer is rubber. The rubber anti-slip layer has good elasticity and viscosity, which can increase the friction between the pad and the contact surface of the support body, and also avoid damage to the surface of the support body due to pressure.

[0029] In the utility model, the support body to be processed is first placed at the center of the upper surface of the bridge plate 04, and then the support body is centered by the centering mechanism 09, and then the support body is fixed by multiple sets of clamping cylinder assemblies 07. After the tool has completed processing the upper surface of the support body, the rotary distributor 10 is started to control the bridge plate 04 to rotate one hundred and eighty degrees with the fixed support body. At this time, the lower surface of the support body will be located at the top, and then the tool is passed through multiple cavities to process the lower surface of the support body. No secondary clamping is required, and only one clamping is required to process the front and back sides of the support body, avoiding installation errors caused by secondary clamping, improving production efficiency and product precision, and adopting a multi-station layout, which greatly improves the production efficiency of the fixture, and has the advantages of convenient clamping, accurate positioning, and high processing qualification rate.

[0030] In the present invention, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A four-axis hydraulic fixture for supporting a vertical body, comprising a bottom plate (01), characterized in that: A padding block (02) is fixedly mounted on the upper surface of the base plate (01), a tailstock (05) and a four-axis turntable (06) are provided on the upper surface of the padding block (02), L-shaped plates (03) are fixedly mounted on the disks of the tailstock (05) and the four-axis turntable (06), a bridge plate (04) is provided above the base plate (01), the bridge plate (04) is fixedly mounted between the two L-shaped plates (03), a rotary distributor (10) is provided on one side of the tailstock (05), and a driving shaft of the rotary distributor (10) is fixedly connected to the tailstock (05); The surface of the bridge plate (04) is provided with a plurality of cavities for avoiding the back-side processing tool, the surface of the bridge plate (04) is provided with a positioning block (08), and a mounting opening is provided at the center, a centering mechanism (09) is provided in the mounting opening, and a plurality of groups of clamping cylinder assemblies (07) are fixedly provided on the surface of the bridge plate (04).

2. A four-axis hydraulic fixture for supporting a vertical structure according to claim 1, characterized in that: The centering mechanism (09) includes a three-jaw chuck (901), an anti-chip cover (903), a plurality of female jaws (904) and a plurality of auxiliary jaws (905); the three-jaw chuck (901) is vertically slidably installed at the center of the bridge plate (04); the anti-chip cover (903) is fixedly connected to the three-jaw chuck (901); a plurality of mounting grooves are provided in a circular shape on the side wall of the anti-chip cover (903); a rotating shaft is horizontally rotatably installed in the mounting groove; the plurality of female jaws (904) are respectively rotatably sleeved on the plurality of rotating shafts; the plurality of auxiliary jaws (905) are respectively fixedly installed on the upper surfaces of the plurality of female jaws (904), and the lower surfaces thereof are all against the upper surface of the bridge plate (04).

3. A four-axis hydraulic fixture for supporting a vertical structure according to claim 2, characterized in that: The centering mechanism (09) further comprises a telescopic oil cylinder (902) for driving the three-turn chuck (901) to move, the telescopic oil cylinder (902) comprising a cylinder body, a rear cover and a piston, the cylinder body being fixedly mounted on the lower surface of the bridge plate (04), and the piston being fixedly connected to the three-jaw chuck (901).

4. The four-axis hydraulic fixture for supporting body according to claim 1 is characterized in that: The clamping cylinder assembly (07) includes a cylinder, a main pressure plate, a cushion block and a sub-pressure plate, wherein the cylinder is fixedly mounted on the upper surface of the bridge plate (04), the main pressure plate is fixedly mounted on the driving shaft of the cylinder, the sub-pressure plate is fixedly mounted on the upper surface of the main pressure plate, and the cushion block is fixedly mounted on the lower surface of the sub-pressure plate.

5. The four-axis hydraulic fixture for supporting body according to claim 1 is characterized in that: A plurality of flushing holes are provided on the surface of the bottom plate (01).

6. A four-axis hydraulic fixture for supporting a vertical structure according to claim 4, characterized in that: The lower surface of the cushion block is bonded with an anti-skid layer, and the material of the anti-skid layer is rubber.

Images