Quick clamping device for hydraulic machine

Abstract

The utility model relates to the technical field of hydraulic machines, and discloses a quick clamping device for a hydraulic machine, which comprises a mounting frame, a hydraulic rod is fixedly connected to the top side of the mounting frame, a mounting plate is fixedly connected to the telescopic end of the hydraulic rod, and a stamping die is arranged at the bottom of the mounting plate. A mounting assembly is arranged on the side, opposite to the stamping die, of the mounting plate, a machining table is fixedly connected to the bottom side of the mounting frame, an electric push rod is fixedly connected to the interior of the machining table, rotating rods are rotationally connected to the left side and the right side of the telescopic end of the electric push rod correspondingly, and a supporting block is rotationally connected to one end of each rotating rod. According to the stamping die, the two clamping plates move oppositely to clamp and fix a workpiece, the workpiece is prevented from deviating in the machining process to affect stamping, after one ends of the two fixing shafts are pulled out of the interior of the connecting shaft, the connecting shaft can be taken out of the interior of the mounting block, and then the stamping die can be rapidly replaced.

Description

Technical Field

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

[0002] Stamping is a common metal processing process, which is often used to process metal sheets or metal blanks through dies on punch presses or hydraulic presses to achieve the required shape, size and surface characteristics.

[0003] In the stamping process, a hydraulic press is required for stamping. A hydraulic press is a mechanical device that uses the principle of hydraulic transmission and the power generated by the hydraulic cylinder to complete various processing operations. It is mainly used in metal processing, sheet forming, and pressing processes, and is commonly found in stamping workshops, mold manufacturing plants, and metal processing factories.

[0004] The traditional stamping process requires the workpiece to be placed on the surface of the processing table, and then the hydraulic press drives the stamping die to stamp the workpiece. However, the surface of the processing table lacks a fixed structure, which causes the workpiece to shift due to the impact of the stamping die during the stamping process, affecting the stamping. Therefore, a quick clamping device for a hydraulic press is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a quick clamping device for a hydraulic press, aiming to improve the problem in the prior art that the offset of the workpiece affects the stamping.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A quick clamping device for a hydraulic press comprises a mounting frame, a hydraulic rod is fixedly connected to the top side of the mounting frame, a mounting plate is fixedly connected to the telescopic end of the hydraulic rod, a stamping die is arranged at the bottom of the mounting plate, a mounting assembly is arranged on the side of the mounting plate facing the stamping die, a processing table is fixedly connected to the bottom side of the mounting frame, an electric push rod is fixedly connected inside the processing table, both left and right sides of the telescopic end of the electric push rod are rotatably connected to a rotating rod, one end of the rotating rod is rotatably connected to a support block, a mounting rod is fixedly connected to the top side of the support block, a fixing rod is slidably connected inside the mounting rod, and a clamping plate is fixedly connected to the top of the fixing rod;

[0008] As a further description of the above technical solution:

[0009] The mounting assembly comprises a mounting block, the mounting block is fixedly connected to the bottom side of the mounting plate, a moving shaft is slidably connected inside the mounting block, both left and right sides of the rear end of the moving shaft are rotatably connected to connecting rods, and one end of the connecting rod is rotatably connected to a fixed shaft;

[0010] As a further description of the above technical solution:

[0011] A slider is fixedly connected to the bottom side of the support block, two slide grooves are provided inside the processing table, and the slider is slidably connected inside the slide grooves;

[0012] As a further description of the above technical solution:

[0013] Two protrusions are slidably connected to the inner side of the bottom of the fixing rod, one end of the protrusion is fixedly connected to a spring 1, one end of the spring 1 is fixedly connected to the inside of the fixing rod, and a plurality of evenly distributed grooves are opened inside the fixing rod, and the protrusions are slidably connected to the inside of the grooves;

[0014] As a further description of the above technical solution:

[0015] A rubber pad is fixedly connected to one side of the clamping plate;

[0016] As a further description of the above technical solution:

[0017] A second spring is sleeved on the outer periphery of the movable shaft, one end of the second spring abuts against the front side of the mounting block, and the other end of the second spring abuts against the front end of the movable shaft;

[0018] As a further description of the above technical solution:

[0019] A connecting shaft is fixedly connected to the top side of the stamping die, the top end of the connecting shaft is slidably connected to the inside of the mounting block, and one end of the fixed shaft is slidably connected to the inside of the top end of the connecting shaft;

[0020] As a further description of the above technical solution:

[0021] Two guide rods are slidably connected to the inner side of the top of the installation frame, and the bottom ends of the guide rods are fixedly connected to the top side of the installation plate.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, after placing the workpiece on the top side of the processing table, the electric push rod is started, and the telescopic end of the electric push rod is extended to drive the two rotating rods to rotate. During the rotation of the two rotating rods, the two supporting blocks are respectively driven to move. The supporting blocks drive the clamping plates to move through the mounting rod and the fixing rod. The two clamping plates move toward each other to clamp and fix the workpiece, thereby preventing the workpiece from being offset during the processing and affecting the stamping.

[0024] 2. In the utility model, the connecting shaft is inserted into the mounting block to connect the stamping die and the mounting plate to each other, so that the telescopic end of the hydraulic rod can drive the stamping die to move to stamp the workpiece. When the stamping die needs to be replaced, the moving shaft can be pressed into the mounting block. During the movement of the moving shaft, the two connecting rods are driven to rotate and the two connecting rods respectively push the two fixed shafts to move. When one end of the two fixed shafts is pulled out from the connecting shaft, the connecting shaft can be taken out from the mounting block, and then the stamping die can be quickly replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of a quick clamping device for a hydraulic press proposed by the utility model;

[0026] Figure 2 This is a structural schematic diagram of a processing table for a quick clamping device for a hydraulic press proposed by the utility model;

[0027] Figure 3 This is a structural schematic diagram of a mounting rod of a quick clamping device for a hydraulic press proposed by the utility model;

[0028] Figure 4 The utility model is a structural schematic diagram of a mounting block of a quick clamping device for a hydraulic press.

[0029] Legend:

[0030] 1. Mounting frame; 2. Stamping die; 3. Processing table; 4. Mounting rod; 5. Clamp; 6. Mounting block; 7. Mounting plate; 8. Hydraulic rod; 9. Guide rod; 10. Support block; 11. Electric push rod; 12. Slider; 13. Fixed rod; 14. Rotating rod; 15. Rubber pad; 16. Bump; 17. Spring 1; 18. Fixed shaft; 19. Connecting rod; 20. Moving shaft; 21. Spring 2; 22. Connecting shaft. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-Figure 3The utility model provides an embodiment: a quick clamping device for a hydraulic press, comprising a mounting frame 1, a hydraulic rod 8 is fixedly connected to the top side of the mounting frame 1, a mounting plate 7 is fixedly connected to the telescopic end of the hydraulic rod 8, two guide rods 9 are slidably connected to the inner side of the top of the mounting frame 1, the bottom end of the guide rod 9 is fixedly connected to the top side of the mounting plate 7, a stamping die 2 is arranged at the bottom of the mounting plate 7, the mounting frame 1 is used to install the hydraulic rod 8, the telescopic end of the hydraulic rod 8 can drive the mounting plate 7 to move, the mounting plate 7 is used to install the guide rod 9, and the guide rod 9 can The telescopic end of the hydraulic rod 8 is restricted from moving, so that the telescopic end of the hydraulic rod 8 can move stably. A processing table 3 is fixedly connected to the bottom side of the mounting frame 1. The processing table 3 is used to place the workpiece. An electric push rod 11 is fixedly connected inside the processing table 3. The left and right sides of the telescopic end of the electric push rod 11 are rotatably connected to a rotating rod 14. One end of the rotating rod 14 is rotatably connected to a support block 10. A slider 12 is fixedly connected to the bottom side of the support block 10. Two slide grooves are provided inside the processing table 3. The slider 12 is slidably connected inside the slide groove. The telescopic end of the electric push rod 11 can be extended. The rotation of the rotating rod 14 can drive the support block 10 to move, and the sliding block 12 can limit the movement of the support block 10 by sliding in the slide groove. The top side of the support block 10 is fixedly connected with the mounting rod 4, and the mounting rod 4 is slidably connected with the fixing rod 13. The bottom inner side of the fixing rod 13 is slidably connected with two protrusions 16, and one end of the protrusion 16 is fixedly connected with a spring 17, and one end of the spring 17 is fixedly connected to the inside of the fixing rod 13. The fixing rod 13 is provided with a plurality of evenly distributed grooves, and the protrusion 16 slides. Connected inside the groove, the support block 10 drives the installation rod 4 to move. The installation rod 4 is used to install the fixing rod 13. The fixing rod 13 slides inside the installation rod 4 to adjust the height of the clamping plate 5. The protrusion 16 is inserted into the groove to fix the height of the fixing rod 13. The spring 17 is used to push the protrusion 16 to move. The top of the fixing rod 13 is fixedly connected to the clamping plate 5, and one side of the clamping plate 5 is fixedly connected to a rubber pad 15. The clamping plate 5 can clamp and fix the workpiece, and the rubber pad 15 is used to increase the friction between the clamping plate 5 and the workpiece.

[0033] Reference Figure 1 , Figure 4The mounting plate 7 is provided with a mounting assembly on the side facing the stamping die 2. The mounting assembly includes a mounting block 6, which is fixedly connected to the bottom side of the mounting plate 7. The mounting block 6 is used to install the moving shaft 20. The moving shaft 20 is slidably connected inside the mounting block 6. A spring 21 is sleeved on the outer periphery of the moving shaft 20. One end of the spring 21 abuts against the front side of the mounting block 6, and the other end of the spring 21 abuts against the front end of the moving shaft 20. The spring 21 can push the moving shaft 20 to move. The left and right sides of the rear end of the moving shaft 20 are rotatably connected with connecting rods. A connecting rod 19, one end of the connecting rod 19 is rotatably connected to a fixed shaft 18, and the movable shaft 20 can drive the connecting rod 19 to rotate during movement, and the rotation of the connecting rod 19 can drive the fixed shaft 18 to move. A connecting shaft 22 is fixedly connected to the top side of the stamping die 2, and the top end of the connecting shaft 22 is slidably connected to the inside of the mounting block 6, and one end of the fixed shaft 18 is slidably connected to the inside of the top end of the connecting shaft 22. One end of the fixed shaft 18 is inserted into the connecting shaft 22 to fix the connecting shaft 22 inside the mounting block 6, thereby completing the installation of the stamping die 2.

[0034] Working principle: before stamping the workpiece, place the workpiece on the top side of the processing table 3, and then start the electric push rod 11. The telescopic end of the electric push rod 11 is extended to drive the two rotating rods 14 to rotate. The rotation of the two rotating rods 14 causes the two support blocks 10 to drive the two clamps 5 to move toward each other respectively. The two clamps 5 move to clamp the workpiece, thereby fixing the workpiece on the top side of the processing table 3. After that, the hydraulic rod 8 can be started so that the telescopic end of the hydraulic rod 8 pushes the stamping die 2 toward the workpiece to stamp the workpiece. After the stamping is completed, the telescopic end of the electric push rod 11 is retracted to drive the two clamps 5 to move relative to each other. After the two clamps 5 no longer clamp the workpiece, the workpiece can be removed from the top side of the processing table 3. When the stamping die 2 needs to be replaced, the movable shaft 20 can be pressed into the mounting block 6. The movement of the movable shaft 20 drives the two connecting rods 19 to rotate. The rotation of the two connecting rods 19 respectively pushes the two fixed shafts 18 to move. When one end of the two fixed shafts 18 is pulled out from the inside of the connecting shaft 22, the connecting shaft 22 can be taken out from the inside of the mounting block 6. After that, the stamping die 2 can be replaced. The connecting shaft 22 on the top side of the new stamping die 2 is inserted into the inside of the mounting block 6 and the movable shaft 20 is released. The movable shaft 20 is pushed out of the mounting block 6 by the spring 21 and drives one end of the two fixed shafts 18 to be inserted into the inside of the connecting shaft 22, thereby completing the installation of the stamping die 2.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A quick clamping device for a hydraulic press, comprising a mounting frame (1), characterized in that: The top side of the installation frame (1) is fixedly connected to a hydraulic rod (8), the telescopic end of the hydraulic rod (8) is fixedly connected to a mounting plate (7), a stamping die (2) is arranged at the bottom of the mounting plate (7), a mounting assembly is arranged on the side of the mounting plate (7) facing the stamping die (2), the bottom side of the installation frame (1) is fixedly connected to a processing table (3), an electric push rod (11) is fixedly connected inside the processing table (3), the left and right sides of the telescopic end of the electric push rod (11) are rotatably connected to rotating rods (14), one end of the rotating rod (14) is rotatably connected to a support block (10), the top side of the support block (10) is fixedly connected to a mounting rod (4), the inside of the mounting rod (4) is slidably connected to a fixed rod (13), and the top of the fixed rod (13) is fixedly connected to a clamping plate (5).

2. A quick clamping device for a hydraulic press according to claim 1, characterized in that: The mounting assembly comprises a mounting block (6), wherein the mounting block (6) is fixedly connected to the bottom side of the mounting plate (7), a movable shaft (20) is slidably connected inside the mounting block (6), a connecting rod (19) is rotatably connected to both left and right sides of the rear end of the movable shaft (20), and one end of the connecting rod (19) is rotatably connected to a fixed shaft (18).

3. A quick clamping device for a hydraulic press according to claim 1, characterized in that: A slider (12) is fixedly connected to the bottom side of the support block (10), two slide grooves are provided inside the processing table (3), and the slider (12) is slidably connected inside the slide grooves.

4. A quick clamping device for a hydraulic press according to claim 1, characterized in that: Two protrusions (16) are slidably connected to the inner side of the bottom of the fixing rod (13); one end of the protrusion (16) is fixedly connected to a spring (17); one end of the spring (17) is fixedly connected to the inside of the fixing rod (13); a plurality of evenly distributed grooves are provided inside the fixing rod (13), and the protrusions (16) are slidably connected to the inside of the grooves.

5. A quick clamping device for a hydraulic press according to claim 1, characterized in that: A rubber pad (15) is fixedly connected to one side of the clamping plate (5).

6. A quick clamping device for a hydraulic press according to claim 2, characterized in that: A second spring (21) is sleeved on the outer periphery of the movable shaft (20), one end of the second spring (21) abuts against the front side of the mounting block (6), and the other end of the second spring (21) abuts against the front end of the movable shaft (20).

7. A quick clamping device for a hydraulic press according to claim 2, characterized in that: A connecting shaft (22) is fixedly connected to the top side of the punching die (2), the top end of the connecting shaft (22) is slidably connected to the inside of the mounting block (6), and one end of the fixed shaft (18) is slidably connected to the inside of the top end of the connecting shaft (22).

8. A quick clamping device for a hydraulic press according to claim 1, characterized in that: Two guide rods (9) are slidably connected to the inner side of the top of the installation frame (1), and the bottom ends of the guide rods (9) are fixedly connected to the top side of the installation plate (7).

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