Pick-up device for hydraulic machine

Abstract

The utility model relates to a piece taking device for a hydraulic machine, which is used for the hydraulic machine and comprises a support leg, an upright post and a piece taking device, the two sky rails are arranged, and the sky rail close to the hydraulic machine is erected at the upper ends of the two supporting legs; the two rails are in a semi-frame shape and are respectively hoisted at the lower ends of the corresponding sky rails; the moving trolley comprises a trolley body which is arranged between the two rails; the wheels are rotatably arranged on the two sides of the vehicle body and roll in the rails; the mechanical arm is connected to the lower end of the vehicle; the clamp is connected to the lower end of the mechanical arm. The supporting legs are fixedly connected with the front ends of the stand columns, the sky rail is erected on the supporting legs, the front end space of the hydraulic machine is fully utilized, rigidity is provided by the hydraulic machine, and the supporting strength is high. During working, the vehicle body moves along the track and drives the mechanical arm to move, the mechanical arm drives the clamp to move, the clamp clamps or puts down the to-be-machined workpiece, the to-be-machined workpiece is taken, placed and replaced, the structure is simple, use is convenient, and the automation degree is high.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic presses, in particular to a workpiece taking device for a hydraulic press. Background Art

[0002] The body of a hydraulic press includes an upper beam, a lower beam, and columns connecting the upper beam and the lower beam. A slider is slidably arranged on the columns, an upper die is arranged at the lower end of the slider, and a lower die is arranged at the upper end of the lower beam. During operation, the workpiece to be processed needs to be placed between the upper die and the lower die for pressing. However, due to the large volume of the workpiece to be processed, the small space around the hydraulic press, and the high processing temperature, it is not suitable for manual taking and placing of workpieces. Therefore, it is necessary to design a workpiece taking and placing device for a hydraulic press.

[0003] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present disclosure, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the embodiment of the utility model discloses a workpiece taking device for a hydraulic press to solve the problem of inconvenient taking and placing of workpieces around the hydraulic press.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A workpiece taking device for a hydraulic press, which is used for a hydraulic press. The hydraulic press includes a lower beam and columns arranged on both sides of the upper end of the lower beam. The taking device includes: legs fixed to the front ends of the columns; two overhead rails, and the overhead rail close to the hydraulic press is arranged on the upper ends of the two legs; two semi-frame-shaped rails, which are respectively hoisted at the lower ends of the corresponding overhead rails; a mobile trolley, including: a vehicle body arranged between the two rails; wheels rotatably arranged on both sides of the vehicle body and rolling in the rails; a robotic arm connected to the lower end of the vehicle body; and a clamp connected to the lower end of the robotic arm for clamping the workpiece to be processed.

[0007] Further, the overhead rail is an I-beam, and the overhead rail and the rail are connected through a connecting piece. The connecting piece includes: a clamping piece clamped and fixed on both sides of the overhead rail; a second cross plate screwed to the lower end of the clamping piece; and a first vertical plate with its upper end connected to the second cross plate and its side connected to the rail.

[0008] Further, the mobile trolley includes: auxiliary wheels rotatably arranged on both sides of the lower end of the vehicle body and rolling in contact with the end faces of the rails.

[0009] A further technical solution thereof is that the robotic arm includes a first arm, an adjustment assembly, and a bending arm connected in sequence; wherein, the first arm is vertically arranged, and the upper end is connected to the vehicle body; the adjustment assembly raises and lowers the bending arm and maintains the posture of the bending arm; the lower end of the bending arm is connected to the fixture.

[0010] A further technical solution thereof is that the adjustment assembly includes: swing rods, there are two swing rods, the first ends of the two swing rods are hinged to the lower end of the first arm at intervals in the vertical direction, the two swing rods are parallel and have the same length; a connecting rod, the second end is hinged to the lower end of the first arm and fixedly connected to the first end of the swing rod; a balance cylinder, the first end is hinged to the upper end of the first arm, and the second end is hinged to the first end of the connecting rod; a connecting block, the side surface is hinged to the second ends of the two swing rods, and the lower end is connected to the bending arm.

[0011] A further technical solution thereof is that the first arm includes: a limit pull rod, the first end is hinged to the first arm, and nuts are arranged at both ends; the swing rod includes: a rod sleeve, which is rotatably arranged on the side surface of the swing rod, sleeved on the limit pull rod, and located between the two nuts.

[0012] A further technical solution thereof is that the bending arm includes a second arm arranged horizontally and a third arm arranged vertically; wherein, the second arm is connected to the lower end of the connecting block, and the third arm is connected to the fixture.

[0013] A further technical solution thereof is that the first arm and the vehicle body, the connecting block and the second arm, and the second arm and the third arm are rotatably connected, and a slewing braking assembly is arranged at the connection.

[0014] A further technical solution thereof is that the picking device includes: a control box, which is arranged on the side surface of the first arm.

[0015] A further technical solution thereof is that the overhead rail is connected to the support leg by screws; a connecting surface is arranged at the rear end of the support leg, and the connecting surface is connected to the column by screws.

[0016] The beneficial effects of the embodiments of the present utility model are as follows:

[0017] (1) The picking device for the hydraulic press of the present utility model includes support legs, an overhead rail, a track, a moving trolley, a robotic arm, and a fixture. By fixedly connecting the support legs to the front end of the column and arranging the overhead rail on the support legs, the front-end space of the hydraulic press is fully utilized, and the hydraulic press provides stiffness, with high support strength. During operation, the vehicle body moves along the track, driving the robotic arm to move, the robotic arm drives the fixture to move, and the fixture picks up or puts down the workpiece to be processed, realizing the picking, placing, and replacement of the workpiece to be processed. The structure is simple, easy to use, and has a high degree of automation.

[0018] (2) Further, the robotic arm includes a first arm, an adjustment assembly, and a bending arm that are connected in sequence. The adjustment assembly raises and lowers the bending arm and maintains the posture of the bending arm. The adjustment assembly includes a swing rod, a connecting rod, a balance cylinder, and a connecting block. The piston rod of the balance cylinder expands and contracts to drive the connecting rod and a swing rod to rotate. The swing rod drives the connecting block to rotate, and the connecting block simultaneously drives the other swing rod to rotate. Since the two swing rods are parallel and have the same length, the connecting block maintains its posture during rotation, and the bending arm at the lower end also maintains its posture, ensuring the stability when the fixture is raised and lowered. Description of the Drawings

[0019] Figure 1 Isometric view of the workpiece picking device for the hydraulic press of the present utility model.

[0020] Figure 2 Is Figure 1 Enlarged view at A.

[0021] Figure 3 Side view structural schematic diagram of the leg and the overhead rail in the workpiece picking device for the hydraulic press of the present utility model.

[0022] Figure 4 Isometric view of the robotic arm and the fixture in the workpiece picking device for the hydraulic press of the present utility model.

[0023] Figure 5 Side view structural schematic diagram of the robotic arm and the fixture in the workpiece picking device for the hydraulic press of the present utility model.

[0024] Figure 6 Is Figure 5 Enlarged view at B.

[0025] In the figure:

[0026] 1. Hydraulic press; 11. Lower beam; 12. Column; 2. Leg; 21. Connection surface; 3. Overhead rail; 4. Track; 5. Connecting piece; 51. First horizontal plate; 52. Frame plate; 53. Cross bar; 54. Second horizontal plate; 55. Vertical plate; 6. Mobile trolley; 61. Vehicle body; 62. Wheel; 63. Auxiliary wheel; 7. Robotic arm; 71. First arm; 711. Limit pull rod; 72. Adjustment assembly; 721. Swing rod; 722. Rod sleeve; 723. Connecting block; 724. Balance cylinder; 725. Connecting rod; 73. Bending arm; 731. Second arm; 732. Third arm; 8. Fixture; 81. Frame; 82. Claw part; 83. Claw cylinder; 9. Control box; 10. Connecting plate; 101. Rotating shaft; 102. Brake disc; 103. Brake block. Detailed Embodiments

[0027] The following combines the drawings to illustrate the detailed embodiments of the present utility model.

[0028] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the following further elaborates on the device proposed by the present utility model in conjunction with the attached drawings and specific embodiments. According to the following description, the advantages and features of the present utility model will be clearer. It should be noted that the attached drawings are in a very simplified form and all use non-precise scales, only for conveniently and clearly assisting in explaining the objectives of the embodiments of the present utility model. In order to make the objectives, features and advantages of the present utility model more obvious and understandable, please refer to the attached drawings. It should be noted that the structures, scales, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the objectives that can be achieved, should still fall within the scope covered by the technical content disclosed by the present utility model.

[0029] Embodiment:

[0030] This embodiment discloses a workpiece picking device for a hydraulic press.

[0031] Figure 1 It is an axonometric view of the workpiece picking device for the hydraulic press of the present utility model. As Figure 1 shown, the workpiece picking device is used for the hydraulic press 1, and the hydraulic press 1 includes a lower beam 11 and columns 12 arranged on both sides of the upper end of the lower beam 11.

[0032] Figure 2 It is Figure 1 an enlarged view at A. Figure 3 It is a side view structural schematic diagram of the support legs and the overhead rail in the workpiece picking device for the hydraulic press of the present utility model. Figure 4 It is an axonometric view of the robotic arm and the fixture in the workpiece picking device for the hydraulic press of the present utility model. As Figures 2 to 4 shown, the workpiece picking device includes support legs 2, an overhead rail 3, a track 4, a mobile trolley 6, a robotic arm 7 and a fixture 8.

[0033] As Figure 2 and Figure 3 shown, the support legs 2 are fixed to the front ends of the columns 12. Exemplarily, the support legs 2 are perpendicular to the columns 12. A connecting surface 21 is provided at the rear end of the support legs 2, and the connecting surface 21 is screwed to the front surface of the columns 12.

[0034] As Figure 2 and Figure 3 shown, there are two overhead rails 3. The overhead rail 3 close to the hydraulic press 1 is installed on the upper ends of the two support legs 2. Exemplarily, the overhead rail 3 is an I-beam, and the bottom edge of the overhead rail 3 is screwed to the support legs 2. When the workpiece picking device is under heavy load, a support rod (not shown in the figure) is provided between the lower end of the overhead rail 3 far from the hydraulic press 1 and the ground to improve the load-bearing capacity of the workpiece picking device.

[0035] As Figure 3 and Figure 4 shown, the track 4 is semi-frame-shaped and has two pieces, which are respectively hoisted at the lower ends of the corresponding overhead tracks 3. Exemplarily, the overhead track 3 and the track 4 are connected by a connecting member 5, and the connecting member 5 includes a clamping member, a second cross plate 54 and a first vertical plate 55. The clamping member is clamped and fixed on both sides of the overhead track 3. Specifically, the clamping member includes two first cross plates 51 and a frame plate 52. The frame plate 52 is arranged at the lower end of the bottom edge of the overhead track 3, and the first cross plates 51 are arranged at the upper end of the bottom edge of the overhead track 3. The two first cross plates 51 are respectively connected to the frame plate 52 by screws to clamp the bottom edge of the overhead track 3. The second cross plate 54 is connected to the lower end of the clamping member by screws. The upper end of the first vertical plate 55 is connected to the second cross plate 54, and the side surface is connected to the track 4 by screws. A cross bar 53 is also welded between the two first cross plates 51 to improve the support strength between the tracks 4.

[0036] As Figure 3 shown, the mobile trolley 6 includes a vehicle body 61 and wheels 62. The vehicle body 61 is arranged between the two tracks 4. The wheels 62 are rotatably arranged on both sides of the vehicle body 61 and roll in the track 4. Exemplarily, the wheels 62 are arranged vertically. The power source of the vehicle body 61 is an internal electric motor or a pneumatic motor. Preferably, the mobile trolley 6 includes auxiliary wheels 63, and the auxiliary wheels 63 are horizontally rotatably arranged on both sides of the lower end of the vehicle body 61 and rollingly contact the end surface of the track 4 to improve the balance when the vehicle body 61 is running.

[0037] As Figure 4 shown, the robotic arm 7 is connected to the lower end of the vehicle body 61. Exemplarily, the robotic arm 7 includes a first arm 71, an adjustment assembly 72 and a bending arm 73 which are connected in sequence. The adjustment assembly 72 raises and lowers the bending arm 73 and maintains the posture of the bending arm 73. The lower end of the bending arm 73 is connected to the fixture 8.

[0038] Figure 5 This is a schematic side view structure diagram of the robotic arm and the fixture in the workpiece taking device for the hydraulic press of the present utility model. As Figure 5As shown in the figure, specifically, the first arm 71 is vertically arranged, and its upper end is connected to the vehicle body 61. The adjusting assembly 72 includes a swing rod 721, a connecting rod 725, a balance cylinder 724, and a connecting block 723. There are two swing rods 721. The first ends of the two swing rods 721 are hinged to the lower end of the first arm 71 at intervals in the vertical direction. The two swing rods 721 are parallel and have the same length. The second end of the connecting rod 725 is hinged to the lower end of the first arm 71 and is fixedly connected to the first end of the swing rod 721. The first end of the balance cylinder 724 is hinged to the upper end of the first arm 71, and the second end is hinged to the first end of the connecting rod 725. The side surface of the connecting block 723 is hinged to the second ends of the two swing rods 721, and the lower end is connected to the bending arm 73. The bending arm 73 includes a horizontally arranged second arm 731 and a vertically arranged third arm 732. Among them, the second arm 731 is connected to the lower end of the connecting block 723, and the third arm 732 is connected to the fixture 8. When the piston rod of the balance cylinder 724 expands and contracts, it drives the connecting rod 725 and one swing rod 721 to rotate. The swing rod 721 drives the connecting block 723 to rotate, and the connecting block 723 simultaneously drives the other swing rod 721 to rotate. Since the two swing rods 721 are parallel and have the same length, the connecting block 723 maintains its posture during rotation, and the bending arm 73 at the lower end also maintains its posture, ensuring the stability when the fixture moves up and down.

[0039] As Figure 5 shown, preferably, the first arm 71 includes a limit pull rod 711. The first end of the limit pull rod 711 is hinged to the first arm 71, and nuts are provided at both ends. The swing rod 721 includes a rod sleeve 722. The rod sleeve 722 is rotatably arranged on the side surface of the swing rod 721, sleeved on the limit pull rod 711, and located between the two nuts. When the swing rod 721 rotates, the rod sleeve 722 slides along the limit pull rod 711, and the nuts limit the moving range of the rod sleeve 722, that is, limit the rotation angle of the adjusting assembly 72.

[0040] As Figure 4 and Figure 5 shown, the fixture 8 is connected to the lower end of the robotic arm 7 and clamps the workpiece to be processed. Exemplarily, the fixture 8 includes a frame 81, a claw part 82, and a jaw cylinder 83. The frame 81 is semi-frame-shaped and is connected to the third arm 732 through a connecting plate 10. The claw part 82 is rotatably arranged at the lower end of the frame 81. The first end of the jaw cylinder 83 is hinged to the frame 81, and the second end is hinged to the claw part 82. The piston rod of the jaw cylinder 83 expands and contracts to control the rotation of the claw part 82 and lift the workpiece to be processed. In other embodiments of the present invention, the fixture 8 can also be a single jaw, as long as it can grasp the workpiece to be processed, and the present invention does not make further limitations on this.

[0041] Figure 6 is Figure 5 an enlarged view at A. As Figure 5 and Figure 6As shown in the figure, further, the first arm 71 is rotatably connected to the vehicle body 61, the connecting block 723 is rotatably connected to the second arm 731, and the second arm 731 is rotatably connected to the third arm 732, and a slewing brake assembly is provided at the connection. Specifically, a rotating shaft 101 is built into the connection between the first arm 71 and the vehicle body 61, the connecting block 723 and the second arm 731, and the second arm 731 and the third arm 732. The slewing brake assembly includes a brake disc 102 fixedly arranged at the upper end of the first arm 71, the lower end of the connecting block 723 and the upper end of the third arm 732, and brake blocks 103 telescopically arranged at the lower end of the vehicle body 61 and both ends of the second arm 731. The brake 103 extends out to abut against the brake disc 102 to prevent rotation.

[0042] As Figure 4 shown in the figure, further, the picking device includes a control box 9, and the control box 9 is arranged on the side of the first arm 71.

[0043] In this embodiment, the vehicle body 61 moves along the track 4, driving the robotic arm 7 to move, the robotic arm 7 drives the fixture 8 to move, and the fixture 8 picks up or puts down the workpiece to be processed, realizing the picking, placing and replacement of the workpiece to be processed.

[0044] At the same time, since the outrigger 2 is connected to the front end of the column 12 and the overhead rail 3 is installed on the outrigger 2, the front-end space of the hydraulic press 1 is fully utilized, and the hydraulic press 1 provides stiffness, so the support strength is high.

[0045] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0046] The above-described embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. A workpiece taking device for a hydraulic press, characterized in that, For a hydraulic press, the hydraulic press includes a lower beam and columns arranged on both sides of the upper end of the lower beam. The workpiece picking device includes: Legs, fixed to the front ends of the columns; Overhead rails, there are two of them, and the overhead rails close to the hydraulic press are installed on the upper ends of the two legs; Tracks, in a semi-frame shape, there are two of them, respectively hoisted at the lower ends of the corresponding overhead rails; Moving trolley, including: Vehicle body, arranged between the two tracks; Wheels, rotatably arranged on both sides of the vehicle body and rolling within the tracks; Robot arm, connected to the lower end of the vehicle body; Fixture, connected to the lower end of the robot arm and clamping the workpiece to be processed.

2. The workpiece taking device for a hydraulic press according to claim 1, wherein: The overhead rails are I-beams, and the overhead rails and the tracks are connected by connecting pieces. The connecting pieces include: Clamping pieces, clamped and fixed on both sides of the overhead rails; Second horizontal plate, screw-connected to the lower ends of the clamping pieces; First vertical plate, the upper end is connected to the second horizontal plate, and the side is connected to the track.

3. The workpiece taking device for a hydraulic press according to claim 1, characterized in that, The moving trolley includes: auxiliary wheels, rotatably arranged on both sides of the lower end of the vehicle body and rolling in contact with the end faces of the tracks.

4. The workpiece picking device for a hydraulic press according to claim 1, characterized in that: The robot arm includes a first arm, an adjustment assembly and a bending arm connected in sequence; Among them, the first arm is arranged vertically, and the upper end is connected to the vehicle body; the adjustment assembly raises and lowers the bending arm and maintains the posture of the bending arm; the lower end of the bending arm is connected to the fixture.

5. The pick-up device for a hydraulic press according to claim 4, characterized in that, The adjustment assembly includes: swing rods, there are two of them, and the first ends of the two swing rods are hinged to the lower end of the first arm at intervals in the vertical direction. The two swing rods are parallel and have the same length; Connecting rod, the second end is hinged to the lower end of the first arm and fixedly connected to the first end of the swing rod; Balancing cylinder, the first end is hinged to the upper end of the first arm, and the second end is hinged to the first end of the connecting rod; Connecting block, the sides are hinged to the second ends of the two swing rods, and the lower end is connected to the bending arm.

6. The workpiece picking device for a hydraulic press according to claim 5, characterized in that, The first arm includes: Limit pull rod, the first end is hinged to the first arm, and nuts are arranged at both ends; The swing rod includes: Rod sleeve, rotatably arranged on the side of the swing rod, sleeved on the limit pull rod and located between the two nuts.

7. The workpiece picking device for a hydraulic press according to claim 5, characterized in that: The bending arm includes a second arm arranged horizontally and a third arm arranged vertically; Among them, the second arm is connected to the lower end of the connecting block, and the third arm is connected to the fixture.

8. The workpiece picking device for a hydraulic press according to claim 7, wherein: The first arm and the vehicle body, the connecting block and the second arm, and the second arm and the third arm are rotatably connected, and a swing brake assembly is arranged at the connection.

9. The workpiece picking device for a hydraulic press according to claim 4, characterized in that, The workpiece picking device includes: a control box, arranged on the side of the first arm.

10. The workpiece picking device for a hydraulic press according to claim 1, wherein: The overhead rails are screw-connected to the legs; a connecting surface is arranged at the rear end of the legs, and the connecting surface is screw-connected to the columns.

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