A clamping tool for profile cutting

Abstract

This application relates to the field of workpiece cutting and clamping fixture technology, and discloses a clamping fixture for irregular cutting, including a base, a support seat fixedly installed on the top of the base, a feeding mechanism and a storage plate fixedly installed at one end of the top of the support seat, and a robotic arm fixedly installed at the other end of the top of the support seat. A support device and a discharge device are also fixedly installed on the top of the support seat, located between the storage plate and the robotic arm. The support device includes a first support block and a second support block, which together form a V-shaped support surface. A clamping mechanism for clamping the workpiece on the V-shaped support surface is fixedly installed on the top of the support seat. By supporting the workpiece with the V-shaped support surface and clamping it with the clamping mechanism, stable cutting of the workpiece is achieved. Furthermore, by adjusting the included angle of the V-shaped support surface, precise cutting can be achieved when cutting edges or chamfering polygonal workpieces, thus removing the desired effect.

Description

Technical Field

[0001] This application relates to the field of workpiece cutting clamping fixture technology, and in particular to a clamping fixture for irregular cutting. Background Technology

[0002] Square and polygonal workpieces are among the most commonly used basic structural components in many fields such as mechanical manufacturing, electronic equipment, and architectural hardware. Their applications cover a wide range of scenarios, including industrial production, consumer goods, and precision instruments. In the actual production and use of square and polygonal workpieces, in order to avoid sharp burrs on the edges and corners of the workpieces affecting assembly accuracy, safety of use, and aesthetic appearance, and to improve the compatibility of the workpieces with other components, and to prevent wear of components or scratches to personnel caused by sharp edges and corners during assembly, it is usually necessary to chamfer or bevel the edges and corners. This processing step is one of the important links in the production process of square and polygonal workpieces, and it is directly related to the final quality and performance of the workpieces.

[0003] However, existing fixtures have a single and fixed clamping method and position when clamping square and polygonal workpieces. When flipping or re-clamping square and polygonal workpieces, it is difficult to cooperate with cutting equipment to achieve precise cutting of the edges and corners of square and polygonal workpieces, thus making it difficult to cut to the desired effect. Summary of the Invention

[0004] This application proposes a clamping fixture for irregular cutting, which has the advantage of being able to accurately cut the edges and corners of square and polygonal workpieces after clamping and positioning them, thereby solving the problem that existing fixtures are difficult to accurately cut the edges and corners of square and polygonal workpieces when clamping them.

[0005] To achieve the above objectives, this application adopts the following technical solution: a clamping fixture for irregular cutting, including a base, a support seat fixedly installed on the top of the base, a feeding mechanism and a storage plate fixedly installed at one end of the top of the support seat, a robotic arm fixedly installed at the other end of the top of the support seat, and a support device and a discharge device fixedly installed on the top of the support seat between the storage plate and the robotic arm.

[0006] The support device includes a first support block and a second support block, as well as a side baffle disposed on one side of the first support block and the second support block. The first support block and the second support block together form a V-shaped support surface. The workpiece is placed on the V-shaped support surface by a robotic arm, and a clamping mechanism for clamping the workpiece on the V-shaped support surface is fixedly installed on the top of the support base. The side baffle limits the workpiece on one side of the V-shaped support surface so as to indicate that the clamping mechanism can cooperate to position the workpiece.

[0007] The discharge device includes a receiving plate fixedly installed on the top of the support base. A scraper driven by a cylinder is provided on one side of the top of the receiving plate. The receiving plate receives the chips during cutting, and the cylinder drives the piston shaft to push the scraper to move, using the scraper to push the chips on the top of the receiving plate into the base.

[0008] Furthermore, two positioning pins are movably mounted on the side baffle. One corner of the first support block and the second support block are rotatably connected to the two positioning pins, and the end of the first support block and the second support block that abuts is designed with a movable arc surface. The first support block and the second support block can rotate around the two positioning pins respectively, so as to adjust the included angle of the V-shaped support surface between the first support block and the second support block according to the cutting angle required by different workpieces. Therefore, it is not necessary to replace the first support block and the second support block with specific models, which facilitates use.

[0009] Furthermore, the side baffle is fixedly installed on the top of the support base, and two first arc-shaped grooves are formed on the side baffle. The center lines of the two first arc-shaped grooves are collinear with the center lines of the two positioning pins. Movable pins are movably sleeved in the two first arc-shaped grooves. The two movable pins are movably sleeved with the first support block and the second support block, respectively. L-shaped plates are movably sleeved on the two movable pins, and a locking pin is movably inserted between the two L-shaped plates. The pin head of the locking pin is movably connected to one side of one of the L-shaped plates. Two locking nuts are threaded onto the locking pin. The two locking nuts are located on both sides of the other L-shaped plate. By rotating the two nuts, they are separated. With the rotation design of the two L-shaped plates relative to the two movable pins, the two movable pins can move along the first arc-shaped grooves, thereby causing the first support block and the second support block to rotate around the two positioning pins to adjust the included angle of the V-shaped support surface. By tightening the two nuts, the two L-shaped plates are limited, so that the first support block and the second support block can remain in a stable state.

[0010] Furthermore, both L-shaped plates are located on the side of the side baffle away from the first and second support blocks. The pin heads of the two movable pins are movably connected to the other side of the two L-shaped plates, respectively. A nut is threaded onto the end of the movable pin away from the pin head. The nut is located on the side of the first and second support blocks away from the side baffle. The nut, in conjunction with the pin head of the movable pin, limits the first and second support blocks, preventing them from moving along the positioning pins. This ensures the stability of the first and second support blocks as they rotate around the two positioning pins.

[0011] Furthermore, a limiting plate is fixedly installed on the top of the support base. The limiting plate is located on the side of the side baffle away from the first and second support blocks. A first hydraulic cylinder is fixedly installed on the side of the limiting plate away from the side baffle, and one end of the piston shaft of the first hydraulic cylinder is fixedly connected to the side baffle. After the workpiece is placed on the V-shaped support surface by the robotic arm, the piston shaft is driven by the first hydraulic cylinder to move the side baffle to the side that is in contact with the first and second support blocks. The side baffle limits the workpiece on one side of the V-shaped support surface. When the cutting is completed and it is necessary to change the cutting position of the workpiece or remove the workpiece by the robotic arm, the piston shaft is driven by the locking pin to move the side baffle away from the first and second support blocks, so that the side baffle does not affect the robotic arm's gripping of the workpiece.

[0012] Furthermore, two guide plates are fixedly connected to the bottom of the limiting plate on the side facing the first and second support blocks. One end of each guide plate extends below the first and second support blocks and is fixedly connected to a support plate. The bottom end of the support plate is fixedly connected to the top of the support base, and the top of the two guide plates is slidably connected to the bottom of the side baffle. The two guide plates support and limit the side baffle, and the two positioning pins are engaged with the side baffle to allow the side baffle to move stably along the guide plates. This facilitates the control of the side baffle to move stably toward or away from the first and second support blocks.

[0013] Furthermore, the limiting plate has two second arc-shaped grooves, and the side baffle has two first arc-shaped grooves. The center lines of the two first arc-shaped grooves and the second arc-shaped grooves are collinear with the center lines of the two positioning pins. Movable pins are movably fitted onto the two second arc-shaped grooves, and the two movable pins are movably connected to the first support block and the second support block, respectively. An L-shaped plate located on one side of the limiting plate is movably fitted onto each of the two movable pins. The pin head of the movable pin is movably connected to one side of the L-shaped plate, and a limiting sleeve located on the side of the limiting plate away from the L-shaped plate is threaded onto the movable pin. The limiting sleeve, in conjunction with the L-shaped plate, is positioned on the limiting plate... On both sides, when the first support block and the second support block rotate around the two positioning pins respectively, the movable pins can move stably along the second arc-shaped groove. A locking pin is movably inserted between the two L-shaped plates. The pin head of the locking pin is movably connected to the other side of one of the L-shaped plates. Two locking nuts are threaded on the locking pin. The two locking nuts are respectively located on both sides of the other L-shaped plate. After the two locking nuts are tightened, they cooperate with the pin head of the locking pin to limit the two L-shaped plates, thereby limiting the first support block and the second support block. This allows the V-shaped support surface to maintain stable support for the workpiece after adjusting the included angle of the V-shaped support surface.

[0014] Furthermore, a passive bushing is movably fitted inside the first arc-shaped groove. The inner sides of the two passive bushings are movably connected to the outer sides of the two movable pins, respectively. Annular positioning blocks are fixedly fitted at both ends of the passive bushings. The two annular positioning blocks are respectively located on both sides of the side baffle. By limiting the movement of the passive bushings along the first arc-shaped groove with the movement of the movable pins, the passive bushings can move along the first arc-shaped groove without affecting the movement of the side baffles toward or away from the first and second support blocks. The limiting effect of the two annular positioning blocks on both sides of the side baffle, combined with the limiting effect of the limiting bushings and the L-shaped plate on both sides of the limiting plate, enables the first and second support blocks to maintain a stable support state.

[0015] Furthermore, the first support block and the second support block have a first groove on the side facing the limiting plate, located outside the positioning pin. A limiting sleeve located inside the first groove is threaded onto the positioning pin. A nut located on the side of the first support block and the second support block away from the limiting sleeve is also threaded onto one end of the positioning pin. Through the limiting action of the nut and the limiting sleeve, the first support block and the second support block are stably restricted to one end of the positioning pin. The first support block and the second support block also have a second groove located outside the movable pin. The depth of the second groove is greater than the length of the side baffle extending from one end of the passive sleeve. The outer diameter of the second groove is greater than the outer diameter of the annular positioning block. After the piston shaft is driven by the first hydraulic cylinder to push the side baffle to move to fit the first support block and the second support block, the passive sleeve and the annular positioning block can be located inside the second groove.

[0016] Furthermore, the clamping mechanism includes a support member and a second hydraulic cylinder fixedly mounted on a support base. The support member is located on the side of the receiving plate away from the first and second support blocks. The second hydraulic cylinder is located beside the second support block. A third hydraulic cylinder is fixedly mounted on the support member. A pressure rod is fixedly connected to the piston shaft of the third hydraulic cylinder. The piston shaft is driven by the third hydraulic cylinder to push the pressure rod to move and cooperate with the side baffle to clamp one side of the workpiece. A pressure plate is rotatably connected to the top of the piston shaft of the second hydraulic cylinder. The pressure plate can be rotated relative to the piston shaft of the pressure plate by air pressure or hydraulic power to cooperate with the first support block to clamp the other two sides of the workpiece, so as to ensure that the workpiece can be stably fixed on the clamping fixture for cutting.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. This application provides a clamping fixture for irregular cutting. By setting a support device on the top of the support base, a V-shaped support surface is formed by the first support block and the second support block. The robotic arm places the workpiece on the V-shaped support surface and clamps the workpiece with the clamping mechanism to make stable cutting of the workpiece. Furthermore, by adjusting the included angle of the V-shaped support surface, precise cutting can also be achieved when cutting or chamfering the edges of polygonal workpieces, thereby removing the desired effect.

[0019] 2. The material receiving plate in the material discharge structure on the base receives the workpiece cutting debris, and then the scraper pushes the debris onto the base for collection, which facilitates the removal and cleaning of the debris after cutting and makes it convenient to use. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort:

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 for Figure 1 A magnified schematic diagram of the structure at point A;

[0023] Figure 3 This is a schematic diagram of the clamping device in Embodiment 2;

[0024] Figure 4 for Figure 3 The front view;

[0025] Figure 5 for Figure 3 Rear view;

[0026] Figure 6 for Figure 4 Top view;

[0027] Figure 7 This is a schematic diagram of the clamping device in Embodiment 3;

[0028] Figure 8 for Figure 7 The front view;

[0029] Figure 9 for Figure 7 The right view;

[0030] Figure 10 for Figure 8 Top view;

[0031] Figure 11 for Figure 7 A schematic diagram of the back structure of the two support blocks.

[0032] In the diagram: 1. Base; 2. Support base; 3. Feeding mechanism; 4. Storage plate; 5. Robotic arm; 601. First support block; 602. Second support block; 603. Side baffle; 6031. First arc-shaped groove; 604. Positioning pin; 605. Movable pin; 606. L-shaped plate; 607. Locking pin; 608. Locking nut; 609. Limiting plate; 6091. Second arc-shaped groove; 610. First groove; 611, limiting bushing; 612, limiting bushing; 613, guide plate; 614, support plate; 615, passive bushing; 616, annular positioning block; 617, first hydraulic cylinder; 618, second groove; 701, receiving plate; 702, cylinder; 703, scraper; 801, support component; 802, second hydraulic cylinder; 803, third hydraulic cylinder; 804, pressure rod; 805, pressure plate. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1, as Figures 1-2 A clamping fixture for irregular cutting includes a base 1, a support seat 2 on the top of the base 1, a feeding mechanism 3 and a storage plate 4 fixedly mounted on one end of the top of the support seat 2, a robotic arm 5 fixedly mounted on the other end of the top of the support seat 2, and a support device and a discharge device fixedly mounted on the top of the support seat 2 between the storage plate 4 and the robotic arm 5.

[0035] The support device includes a first support block 601 and a second support block 602 fixedly mounted on a support base 2. The first support block 601 and the second support block 602 abut against each other on one side, and together they form a V-shaped support surface. The models of the first support block 601 and the second support block 602 are adjusted according to different workpiece cutting angles and the included angle between the two sides away from the cutting area, so that the V-shaped support surface in the support device is adapted to the workpiece. The workpiece conveyed in the feeding mechanism 3 is placed onto the V-shaped support surface in the support device by the robotic arm 5. Side supports are fixedly mounted on one side of the first support block 601 and the second support block 602. The baffle 603 and the discharge device include a receiving plate 701 and a cylinder 702 fixedly installed on the top of the support base 2. The receiving plate 701 is located on the side of the first support block 601 and the second support block 602 away from the side baffle 603. The cylinder 702 is located at one end of the receiving plate 701, and a scraper 703 is fixedly connected to the piston shaft of the cylinder 702. The bottom of the scraper 703 is movably connected to the top of the receiving plate 701. After the workpiece on the V-shaped support surface is cut, the receiving plate 701 collects the cutting debris, and then the cylinder 702 drives the piston shaft to push the scraper 703 to move, pushing the debris collected on the top of the receiving plate 701 onto the base 1 for collection.

[0036] A clamping mechanism is fixedly installed on the top of the support base 2. The clamping mechanism includes a support member 801 and a second hydraulic cylinder 802 fixedly installed on the support base 2. The support member 801 is located on the side of the receiving plate 701 away from the first support block 601 and the second support block 602. The second hydraulic cylinder 802 is located beside the second support block 602. A third hydraulic cylinder 803 is fixedly installed on the support member 801. The piston shaft of the third hydraulic cylinder 803 is fixedly connected to a pressure rod 804. The third hydraulic cylinder 803 drives the piston shaft to push the pressure rod 804 to move and cooperate with the side baffle 603 to clamp one side of the workpiece. The top of the piston shaft of the second hydraulic cylinder 802 is rotatably connected to a pressure plate 805. The pressure plate 805 can be rotated relative to the piston shaft of the pressure plate 805 by air pressure or hydraulic power to cooperate with the first support block 601 to clamp the other side of the workpiece, so as to ensure that the workpiece can be stably fixed on the clamping fixture for cutting.

[0037] In use, firstly, according to the cutting angle of the workpiece and the included angle of the two sides away from the cutting part (such as pentagonal prisms, hexagonal prisms, etc.), adjust the included angle of the V-shaped support surface so that the V-shaped support surface can fit the two sides of the workpiece away from the cutting part, thereby forming a stable support for the workpiece. Then, the robotic arm 5 clamps the workpiece on the feeding mechanism 3 and places it into the V-shaped support surface in the support device. Then, control the third hydraulic cylinder 803 to drive the piston shaft to push the pressure rod 804 to move, so that the pressure rod 804 cooperates with the side baffle 603 to clamp one side of the workpiece. At the same time, control the pressure plate 805 to rotate relative to the second hydraulic cylinder 802, and cooperate with the first support block 601 to clamp the other two sides of the workpiece. Then, the workpiece is cut, and the receiving plate 701 collects the debris generated during cutting. Finally, the cylinder 702 drives the piston shaft to push the scraper 703 to move, and the debris collected on the top of the receiving plate 701 is discharged to the top of the base 1.

[0038] Example 2, as Figures 3-6 Based on Embodiment 1, the specific structure of the support device differs from Embodiment 1. The support device includes a side baffle 603 fixedly installed on the support base 2. Two positioning pins 604 are movably mounted on the side baffle 603. A first support block 601 and a second support block 602 are movably mounted on the two positioning pins 604, respectively. The end of the first support block 601 and the second support block 602 that abuts each other is designed with a movable arc surface. The first support block 601 and the second support block 602 together form a V-shaped support surface, allowing the first support block 601 and the second support block 602 to rotate relative to the positioning pins 604 on them. This allows the angle between the V-shaped support surfaces of the first support block 601 and the second support block 602 to be adjusted according to different workpiece cutting angles and the included angle between the two sides away from the cutting part. This eliminates the need to replace the first support block 601 and the second support block 602 with specific models, making it convenient to use.

[0039] Two first arc-shaped grooves 6031 are formed on the side baffle 603. The center lines of the two first arc-shaped grooves 6031 are collinear with the center lines of the two positioning pins 604. Movable pins 605 are movably sleeved in the two first arc-shaped grooves 6031. The two movable pins 605 are movably sleeved with the first support block 601 and the second support block 602, respectively. The two first arc-shaped grooves 6031 limit the movement of the two movable pins 605 along the two first arc-shaped grooves 6031, thereby ensuring the structural stability of the first support block 601 and the second support block 602 rotating around the two positioning pins 604. L-shaped plates 606 are movably sleeved on the two movable pins 605. The L-shaped plates 606 are located on the side of the side baffle 603 away from the first support block 601 and the second support block 602. The pin head of the movable pin 605 is connected to the L-shaped plate 606. One side of the 06 is movably connected. The end of the movable pin 605 away from the pin head is threaded with a nut. The nut is located on the side of the first support block 601 and the second support block 602 away from the side baffle 603. The nut, in conjunction with the pin head of the movable pin 605, limits the first support block 601 and the second support block 602, ensuring the stability of the first support block 601 and the second support block 602 rotating around the two positioning pins 604. A locking pin 607 is movably inserted between the two L-shaped plates 606. The pin head of the locking pin 607 is movably connected to the other side of one of the L-shaped plates 606. Two locking nuts 608 are threaded on the locking pin 607. The two locking nuts 608 are located on both sides of the other L-shaped plate 606, thereby limiting the two L-shaped plates 606 and keeping the first support block 601 and the second support block 602 in a stable state.

[0040] In use, by rotating the two locking nuts 608 away, the first support block 601 and the second support block 602 can rotate around the two positioning pins 604 respectively, thereby adjusting the included angle of the V-shaped support surfaces of the first support block 601 and the second support block 602. Then, by tightening the two nuts, the two L-shaped plates 606 are limited and fixed, so that the two L-shaped plates 606, the two movable pins 605, the first support block 601 and the second support block 602 are kept in a stable state, thus eliminating the need to replace the first support block 601 and the second support block 602, and making it convenient for the first support block 601 and the second support block 602 to support the workpiece.

[0041] Example 3, as Figures 7-11Based on Embodiment 1, the specific structure of the support device differs from Embodiment 1. The support device includes a limiting plate 609 fixedly installed on the support base 2. Two positioning pins 604 are movably mounted on the limiting plate 609. A first support block 601 and a second support block 602 are movably mounted on one end of each of the two positioning pins 604. The ends of the first support block 601 and the second support block 602 that abut against each other are designed with a movable arc surface. The first support block 601 and the second support block 602 together form a V-shaped support surface, allowing the first support block 601 and the second support block 602 to rotate relative to the positioning pins 604 on them, thereby adjusting the V-shaped support surface between the first support block 601 and the second support block 602. The included angle of the support surface is adjusted so that there is no need to replace the first support block 601 and the second support block 602 of the corresponding model, which facilitates use. The first support block 601 and the second support block 602 have a first groove 610 on the side facing the limiting plate 609, located outside the positioning pin 604. The positioning pin 604 is threaded with a limiting sleeve 611 located inside the first groove 610. One end of the positioning pin 604 is also threaded with a nut located on the side of the first support block 601 and the second support block 602 away from the limiting sleeve 611. Through the limiting action of the nut and the limiting sleeve 611, the first support block 601 and the second support block 602 are stably restricted to one end of the positioning pin 604.

[0042] The limiting plate 609 has two second arc-shaped grooves 6091, and the center lines of the two second arc-shaped grooves 6091 are collinear with the center lines of the two positioning pins 604. Movable pins 605 are movably fitted on the two second arc-shaped grooves 6091, and L-shaped plates 606 located on one side of the limiting plate 609 are movably fitted on the two movable pins 605. The pin head of the movable pin 605 is movably connected to one side of the L-shaped plate 606. A locking pin 607 is movably inserted between the two L-shaped plates 606. The pin head of the locking pin 607 is movably connected to the other side of one of the L-shaped plates 606. Two locking nuts 608 are threaded on the locking pin 607. The two locking nuts 608 are located on both sides of the other L-shaped plate 606. After the two locking nuts 608 are tightened, they cooperate with the pin head of the locking pin 607 to limit the two L-shaped plates 606.

[0043] The movable pin 605 is threaded with a limiting sleeve 612 located on the other side of the limiting plate 609. The limiting sleeve 612 and the L-shaped plate 606 are respectively positioned on both sides of the limiting plate 609 to ensure that when the first support block 601 and the second support block 602 rotate around the positioning pin 604, the movable pin 605 can move along the second arc groove 6091, thereby ensuring that the first support block 601 and the second support block 602 play a stable supporting role for the workpiece.

[0044] Two guide plates 613 are fixedly connected to the bottom of the side of the limiting plate 609 facing the first support block 601 and the second support block 602. One end of the two guide plates 613 extends below the first support block 601 and the second support block 602 and is fixedly connected to a support plate 614. The bottom end of the support plate 614 is fixedly connected to the top of the support base 2. Side baffles 603 are slidably connected to the two guide plates 613. The side baffles 603 are movably sleeved with two positioning pins 604, and two first arc-shaped grooves 6031 are formed on the side baffles 603. The arc centerline is collinear with the axis of the two positioning pins 604. The passive bushings 615 are movably fitted in the two first arc grooves 6031. The inner sides of the two passive bushings 615 are movably connected to the outer sides of the two movable pins 605. The two ends of the passive bushings 615 are fixedly fitted with annular positioning blocks 616. The two annular positioning blocks 616 are respectively located on both sides of the side baffle 603. The annular positioning blocks 616 limit the movement of the passive bushings 615 along the first arc grooves 6031 as the movable pins 605 move.

[0045] A first hydraulic cylinder 617 is fixedly installed on the side of the limiting plate 609 away from the side baffle 603. One end of the piston shaft of the first hydraulic cylinder 617 is fixedly connected to the side baffle 603. By driving the piston shaft to move through the first hydraulic cylinder 617, the side baffle 603 can be moved along the guide plate 613 to approach or move away from the first support block 601 and the second support block 602.

[0046] The first support block 601 and the second support block 602 are also provided with a second groove 618 located outside the movable pin 605. The depth of the second groove 618 is greater than the length of the side baffle 603 extending from one end of the passive bushing 615. The outer diameter of the second groove 618 is greater than the outer diameter of the annular positioning block 616. After the piston shaft is driven by the first hydraulic cylinder 617 to push the side baffle 603 to move to fit the first support block 601 and the second support block 602, the passive bushing 615 and the annular positioning block 616 can be located inside the second groove 618.

[0047] In use, by rotating the two locking nuts 608 away, the first support block 601 and the second support block 602 can rotate around the two positioning pins 604 respectively, thereby adjusting the included angle of the V-shaped support surfaces of the first support block 601 and the second support block 602. Then, by tightening the two nuts, the two L-shaped plates 606 are limited and fixed, so that the two L-shaped plates 606, the two movable pins 605, the first support block 601 and the second support block 602 are kept in a stable state, thus eliminating the need to replace the first support block 601 and the second support block 602. This facilitates the stable support of the workpiece by the first support block 601 and the second support block 602. The workpiece is then picked up by the robotic arm 5 and placed on the first support block 601 and the second support block 602. On the V-shaped support surface of block 602, while the third hydraulic cylinder 803 drives the piston shaft to push the pressure rod 804 toward the workpiece, the first hydraulic cylinder 617 also drives the piston shaft to push the side baffle 603 toward the workpiece, so that the side baffle 603 cooperates with the pressure rod 804 to clamp one side of the workpiece. After the cutting is completed, when the robotic arm 5 needs to remove the workpiece from the V-shaped support surface of the first support block 601 and the second support block 602, while the third hydraulic cylinder 803 drives the piston shaft to pull the pressure rod 804 away from the workpiece, the first hydraulic cylinder 617 also drives the piston shaft to pull the side baffle 603 away from the workpiece, so that the robotic arm 5 can clamp the workpiece on one side of the workpiece and avoid the obstruction of the side baffle 603.

[0048] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A clamping fixture for irregularly shaped cutting, comprising a base, a support seat fixedly mounted on the top of the base, a feeding mechanism and a storage plate fixedly disposed at one end of the top of the support seat, and a robotic arm fixedly mounted at the other end of the top of the support seat, characterized in that, The top of the support base is also fixedly installed with a support device and a discharge device located between the storage plate and the robotic arm; The support device includes a first support block and a second support block, as well as a side baffle on one side of the first support block and the second support block. The first support block and the second support block together form a V-shaped support surface. The workpiece is placed on the V-shaped support surface by the robotic arm to be cut, and a clamping mechanism for clamping the workpiece on the V-shaped support surface is fixedly installed on the top of the support base. The discharge device includes a receiving plate fixedly installed on the top of the support base, and a scraper driven by a cylinder is provided on one side of the top of the receiving plate.

2. The clamping fixture for irregular cutting according to claim 1, characterized in that, Two positioning pins are movably mounted on the side baffle. One corner of the first support block and the second support block are rotatably connected to the two positioning pins, and the end of the first support block and the second support block that abuts each other is a curved surface design for movable connection.

3. The clamping fixture for irregular cutting according to claim 2, characterized in that, The side baffle is fixedly installed on the top of the support base, and two first arc-shaped grooves are opened on the side baffle. The center lines of the two first arc-shaped grooves are collinear with the center lines of the two positioning pins. Movable pins are movably sleeved in the two first arc-shaped grooves. The two movable pins are movably sleeved with the first support block and the second support block, respectively. L-shaped plates are movably sleeved on the two movable pins. A locking pin is movably inserted between the two L-shaped plates. The pin head of the locking pin is movably connected to one side of one of the L-shaped plates. Two locking nuts are threaded on the locking pin. The two locking nuts are respectively located on both sides of the other L-shaped plate.

4. The clamping fixture for irregular cutting according to claim 3, characterized in that, Both L-shaped plates are located on the side of the side baffle away from the first support block and the second support block. The pin heads of the two movable pins are movably connected to the other side of the two L-shaped plates respectively. The end of the movable pin away from the pin head is threaded with a nut, and the nut is located on the side of the first support block and the second support block away from the side baffle.

5. The clamping fixture for irregular cutting according to claim 2, characterized in that, A limiting plate is fixedly installed on the top of the support base. The limiting plate is located on the side of the side baffle away from the first support block and the second support block. A first hydraulic cylinder is fixedly installed on the side of the limiting plate away from the side baffle, and one end of the piston shaft of the first hydraulic cylinder is fixedly connected to the side baffle.

6. The clamping fixture for irregular cutting according to claim 5, characterized in that, Two guide plates are fixedly connected to the bottom of the limiting plate on the side facing the first support block and the second support block. One end of the two guide plates extends to the bottom of the first support block and the second support block and is fixedly connected to a support plate. The bottom end of the support plate is fixedly connected to the top of the support seat, and the top of the two guide plates is slidably connected to the bottom of the side baffle.

7. The clamping fixture for irregular cutting according to claim 5, characterized in that, The limiting plate has two second arc-shaped grooves, and the side baffle has two first arc-shaped grooves. The center lines of the two first arc-shaped grooves and the second arc-shaped grooves are collinear with the center lines of the two positioning pins. Movable pins are movably fitted on the two second arc-shaped grooves, and the two movable pins are movably fitted with the first support block and the second support block, respectively. L-shaped plates located on one side of the limiting plate are movably fitted on the two movable pins, and the pin head of the movable pin is movably connected to one side of the L-shaped plate. A limiting bushing located on the side of the limiting plate away from the L-shaped plate is threaded onto the movable pin. A locking pin is movably inserted between the two L-shaped plates. The pin head of the locking pin is movably connected to the other side of one of the L-shaped plates. Two locking nuts are threaded onto the locking pin, and the two locking nuts are located on both sides of the other L-shaped plate.

8. The clamping fixture for irregular cutting according to claim 7, characterized in that, A passive bushing is movably fitted inside the first arc-shaped groove. The inner sides of the two passive bushings are movably connected to the outer sides of the two movable pins, respectively. Annular positioning blocks are fixedly fitted at both ends of the passive bushings, and the two annular positioning blocks are respectively located on both sides of the side baffle.

9. The clamping fixture for irregular cutting according to claim 7, characterized in that, The first support block and the second support block have a first groove on the side facing the limiting plate, located outside the positioning pin. A limiting bushing located inside the first groove is threaded onto the positioning pin. A nut located on the side of the first support block and the second support block away from the limiting bushing is also threaded onto one end of the positioning pin. The first support block and the second support block also have a second groove on the outside of the movable pin. The depth of the second groove is greater than the length of the side baffle extending from one end of the passive bushing. The outer diameter of the second groove is greater than the outer diameter of the annular positioning block.

10. The clamping fixture for irregular cutting according to claim 1, characterized in that, The clamping mechanism includes a support member and a second hydraulic cylinder fixedly mounted on a support base. The support member is located on the side of the receiving plate away from the first support block and the second support block. The second hydraulic cylinder is located beside the second support block. A third hydraulic cylinder is fixedly mounted on the support member. A pressure rod is fixedly connected to the piston shaft of the third hydraulic cylinder. A pressure plate is rotatably connected to the top of the piston shaft of the second hydraulic cylinder.

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