Limiting protection device of pressing machine

Abstract

The utility model relates to the technical field of pressing machines, and discloses a limiting protection device of a pressing machine, which comprises a base, a first limiting component is fixed at one corner of the top of the base, a pressing machine component is fixed in the middle of the top of the base, and a second limiting component is sleeved on the outer surface of the pressing machine component. The controller is operated to drive the air cylinder to work, the air cylinder drives the extrusion plate to move, when the extrusion plate is in contact with the rubber ring in the descending process, it is indicated that the extrusion plate reaches the limiting position, and the first limiting assembly is in contact with the rubber ring and applies pressure to the rubber ring to rotate; and the rubber ring rotates to drive the connecting rod and the connecting block to move, so that the limiting stopper is triggered, the state of a controller circuit is changed through the limiting stopper, the air cylinder stops moving, machining errors caused by the fact that the air cylinder exceeds the range are avoided, the product quality and the machining precision are guaranteed, and the safety of operators is also guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pressing machine especially relates to pressing machine limiting protection device. BACKGROUND

[0002] Pressing machine is the production equipment that will be used in pressing process, in prior art, when pressing display, usually staff places the touch screen of display on the workbench of machine, after fixing the touch screen, manually operating pressing plate to press the touch screen, thus completing the pressing of display. But manual operation of pressing plate is easy to cause pressing force too big or too small, and the force of each pressing is not the same, the error of operation is big, thereby affecting pressing effect, reduce work efficiency, and excessive movement of equipment will cause accident, thereby affecting processing quality and the safety of operator. SUMMARY

[0003] The utility model aims at at least one of the technical problems in the related art is solved to some extent. For this purpose, one object of the utility model is to propose pressing machine limiting protection device, thereby avoiding the processing error caused by exceeding the range, thereby guaranteeing product quality and processing precision, also guaranteeing the safety of operator.

[0004] According to the pressing machine limiting protection device provided by the utility model, the top corner of the base is fixed with a first limiting assembly, the top middle of the base is fixed with a pressing machine assembly, and the outer surface of the pressing machine assembly is sleeved with a second limiting assembly.

[0005] Preferably, the first limiting assembly comprises a support rod, one end of the support rod is fixed with a pair of limiters, the limit switch of the limiter is fixed with a connecting block, the inside of the connecting block is movably connected with a connecting rod, the inside of the connecting block has a limiting plate abutting against the connecting rod, the inside of the connecting block is fixed with a first bolt penetrating through the limiting plate, the outer surface of one end of the connecting rod is sleeved with a rubber ring, the middle of the support rod is provided with a sliding groove, and the rear end of the limiter is fixed with a second bolt inserted into the sliding groove.

[0006] Preferably, the pressing machine assembly comprises a bottom plate, the top four corners of the bottom plate are fixed with guide rods, the top of the guide rod is fixed with a top plate, the outer surface of the guide rod is sleeved with an extrusion plate between the bottom plate and the top plate, the top center of the top plate is fixed with a gas cylinder, and the telescopic end of the gas cylinder is fixed with the extrusion plate.

[0007] Preferably, the second limiting assembly comprises a pair of U-shaped clamps sleeved with the outer surface of the guide rod, and the third bolt penetrates between the left and right ends of the two U-shaped clamps.

[0008] Preferably, the right end of the base is fixed with a controller.

[0009] Preferably, the bottom of the base is fixed with supporting legs.

[0010] Preferably, the controller is electrically connected with the position limiter.

[0011] The beneficial effects of the present application are:

[0012] 1. The controller drives the cylinder to work, the cylinder drives the extrusion plate to move, and when the extrusion plate contacts the rubber ring in the middle of descending, it indicates that the extrusion plate reaches the limit position, the first limiting assembly will contact the rubber ring and exert pressure on it to rotate, and the rotation of the rubber ring drives the connecting rod and the connecting block to move, thereby triggering the position limiter, changing the state of the controller circuit through the position limiter, and stopping the cylinder from moving, thereby avoiding processing errors caused by exceeding the range, ensuring product quality and processing precision, and protecting the safety of the operator.

[0013] 2. By abutting the inner sides of the two U-shaped clamps with the guide rods, and then fixing their positions through the third bolts, and by setting the two second limiting assemblies at the opposite corners of the four guide rods, the pressing machine assembly can be limited and protected when the first limiting assembly fails, and through the double protection of the first limiting assembly and the second limiting assembly, the safety of the operator is further ensured. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 The utility model provides a three -dimensional structure schematic diagram of pressing machine limiting protection device.

[0015] Figure 2 The utility model provides a front view structure schematic diagram of pressing machine limiting protection device.

[0016] Figure 3 The utility model provides a right view structure schematic diagram of pressing machine limiting protection device.

[0017] Figure 4 The utility model provides a first limiting assembly structure schematic diagram of pressing machine limiting protection device.

[0018] Figure 5 The utility model provides a position limiter structure schematic diagram of pressing machine limiting protection device.

[0019] In the figure: 1, base; 2, first limiting assembly; 3, pressing machine assembly; 4, second limiting assembly; 5, support rod; 6, limiter; 7, connecting block; 8, connecting rod; 9, limiting plate; 10, first bolt; 11, rubber ring; 12, sliding groove; 13, second bolt; 14, bottom plate; 15, guide rod; 16, top plate; 17, extrusion plate; 18, air cylinder; 19, U-shaped clamp; 20, third bolt; 21, controller; 22, support leg. DETAILED DESCRIPTION

[0020] Reference Figures 1-5 The pressing machine limiting protection device comprises a base 1, a first limiting assembly 2 is welded at one corner of the top of the base 1, a pressing machine assembly 3 is welded in the middle of the top of the base 1, the pressing machine assembly 3 can be limited and protected by the first limiting assembly 2, and the outer surface of the pressing machine assembly 3 is sleeved with a second limiting assembly 4, which can limit and protect the pressing machine assembly 3 when the first limiting assembly 2 fails.

[0021] The first limiting assembly 2 comprises a support rod 5, one end of the support rod 5 is fixed with a pair of limiters 6, the limit switches of the limiters 6 are inserted with connecting blocks 7, the connecting blocks 7 are movably connected with connecting rods 8 inside, the connecting blocks 7 have limiting plates 9 inside which abut against the connecting rods 8, the connecting blocks 7 are welded with first bolts 10 which penetrate through the limiting plates 9 inside, and the outer surface of one end of the connecting rods 8 is sleeved with rubber rings 11. When the first limiting assembly 2 moves to a certain position, the first limiting assembly 2 will contact and exert pressure on the rubber rings 11 to rotate, and the rotation of the rubber rings 11 drives the connecting rods 8 and the connecting blocks 7 to move, so as to trigger the connecting blocks 7, change the state of the circuit, and adjust the position of the rubber rings 11 through the connecting rods 8, the limiting plates 9 and the first bolts 10. The middle of the support rod 5 is provided with a sliding groove 12, the rear end of the limiter 6 is fixed with a second bolt 13 which is inserted into the sliding groove 12, and the position of the limiter 6 can be adjusted through the sliding groove 12 and the second bolt 13, so that the pressing distance of the pressing machine assembly 3 can be adjusted according to the situation.

[0022] The pressing machine assembly 3 comprises a bottom plate 14, guide rods 15 are welded at the top of the four corners of the bottom plate 14, top plates 16 are threadedly connected to the top of the guide rods 15, extrusion plates 17 are sleeved on the outer surface of the guide rods 15 between the bottom plate 14 and the top plate 16, air cylinders 18 are threadedly connected to the top center of the guide rods 15, and the telescopic end of the air cylinder 18 is threadedly connected with the extrusion plate 17. The extrusion plate 17 is controlled by the air cylinder 18 to exert pressure on the object.

[0023] The second limiting assembly 4 comprises a pair of U-shaped clamps 19 sleeved on the outer surface of the guide rod 15, and a third bolt 20 penetrates between the left and right ends of the two U-shaped clamps 19. The U-shaped clamps 19 and the third bolt 20 can limit the extrusion plate 17 when the support rod 5 malfunctions. The double protection of the first limiting assembly 2 and the second limiting assembly 4 ensures the safety of the operator.

[0024] The right end of the base 1 is fixed with a controller 21, which is electrically connected with the limiter 6. The controller 21 controls the operation of the cylinder 18, and the electrical connection between the controller 21 and the limiter 6 enables the press assembly 3 to stop moving when reaching the limiting position, thereby stopping the movement of the cylinder 18 through the first limiting assembly 2 and the controller 21.

[0025] The bottom of the base 1 is welded with support legs 22 at four corners, which can support the device.

[0026] When the device is used, the product to be pressed is placed on the bottom plate 14. At this time, the controller 21 is operated to drive the cylinder 18 to work, and the cylinder 18 drives the extrusion plate 17 to move. When the extrusion plate 17 contacts the rubber ring 11 during the descent, it indicates that the extrusion plate 17 has reached the limiting position. The extrusion plate 17 will contact and exert pressure on the rubber ring 11 to rotate. The rotation of the rubber ring 11 drives the connecting rod 8 and the connecting block 7 to move, thereby triggering the limiter 6. The limiter 6 changes the state of the circuit of the controller 21, so that the cylinder 18 stops moving. At this time, the product has completed the pressing.

Claims

1. A limit protection device for a pressing machine, characterized in that: Includes a base (1), a first limiting component (2) is fixed to one corner of the top of the base (1), a pressing machine component (3) is fixed to the middle of the top of the base (1), and a second limiting component (4) is sleeved on the outer surface of the pressing machine component (3). The first limiting component (2) includes a support rod (5), one end of which is fixed with a pair of limiters (6), the limit switch of the limiter (6) is fixed with a connecting block (7), the inside of the connecting block (7) is movably connected with a connecting rod (8), the inside of the connecting block (7) has a limiting plate (9) that abuts against the connecting rod (8), the inside of the connecting block (7) is fixed with a first bolt (10) that penetrates the limiting plate (9), one end of the connecting rod (8) is fitted with a rubber ring (11), the middle of the support rod (5) is provided with a sliding groove (12), and the rear end of the limiter (6) is fixed with a second bolt (13) that inserts into the sliding groove (12).

2. The pressing machine limit protection device according to claim 1, characterized in that: The pressing machine assembly (3) includes a base plate (14), and guide rods (15) are fixed at the top four corners of the base plate (14). A top plate (16) is fixed at the top of the guide rods (15). An extrusion plate (17) is sleeved on the outer surface of the guide rods (15) between the base plate (14) and the top plate (16). A cylinder (18) is fixed at the top center of the top plate (16), and the telescopic end of the cylinder (18) is fixed to the extrusion plate (17).

3. The pressing machine limit protection device according to claim 2, characterized in that: The second limiting component (4) includes a pair of U-shaped clips (19) that are fitted onto the outer surface of the guide rod (15), and a third bolt (20) passes through the left and right ends of the two U-shaped clips (19).

4. The pressing machine limit protection device according to claim 1, characterized in that: A controller (21) is fixed to the right end of the base (1).

5. The pressing machine limit protection device according to claim 1, characterized in that: The base (1) has support legs (22) fixed at the four corners of its bottom.

6. The pressing machine limit protection device according to claim 4, characterized in that: The controller (21) is electrically connected to the limiter (6).

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