阅读说明：本技术 精密薄片零件气动弯曲装置 (Pneumatic bending device for precision sheet parts ) 是由 唐星德 陈俊峰 李良青 于 2021-07-27 设计创作，主要内容包括：本发明公开了一种精密薄片零件气动弯曲装置,其工作台板向后方斜置,工作台板上的右下方设有定型模块和动型模块、左下方设有限位机构、左上方通过行程调节机构设有气动机构,气动机构与动型模块之间设有操作杆；操作杆的右端通过固定轴安装,动型模块通过从动拨动轴安装于操作杆上；限位机构的限位座内设有限位调节螺杆；行程调节机构的调节座内设有行程调节螺杆；气动机构的弯曲气缸的缸体后上端安装于与行程调节螺杆连接的滑座上,弯曲气缸向前下方伸出的缸杆上安装有缸杆接头,缸杆接头抵触于限位调节螺杆上；操作杆的左端通过主动拨动轴连接缸杆接头。本发明因其通用性和气动稳定性,可根据实际生产的需求推广应用。(The invention discloses a pneumatic bending device for precision sheet parts, wherein a working table plate is obliquely arranged backwards, a fixed module and a movable module are arranged at the lower right part on the working table plate, a limiting mechanism is arranged at the lower left part, a pneumatic mechanism is arranged at the upper left part through a stroke adjusting mechanism, and an operating rod is arranged between the pneumatic mechanism and the movable module; the right end of the operating rod is installed through a fixed shaft, and the movable module is installed on the operating rod through a driven shifting shaft; a limiting adjusting screw is arranged in a limiting seat of the limiting mechanism; a stroke adjusting screw is arranged in an adjusting seat of the stroke adjusting mechanism; the rear upper end of a cylinder body of a bending cylinder of the pneumatic mechanism is arranged on a sliding seat connected with a stroke adjusting screw rod, a cylinder rod joint is arranged on a cylinder rod extending out of the bending cylinder towards the front lower part, and the cylinder rod joint is abutted against a limiting adjusting screw rod; the left end of the operating rod is connected with the cylinder rod joint through the driving toggle shaft. The invention can be popularized and applied according to the requirements of actual production due to the universality and the pneumatic stability.)

1. Pneumatic bending device of precision sheet part includes the crooked frock module based on work platen (1) sets up, crooked frock module is including stock module (2) and the movable mould piece (3) that the part was used of bending, its characterized in that:

the bending tool module is arranged at the right lower part of the working table plate (1), a metal trigger proximity switch (19) with a sensor (23) is arranged on the working table plate (1) above the right side of the bending tool module, a limiting mechanism is arranged at the left lower part of the working table plate (1), a pneumatic mechanism is arranged at the left upper part of the working table plate (1) through a stroke adjusting mechanism, and an operating rod (4) is arranged between the pneumatic mechanism and the bending tool module;

the shaping module (2) is arranged on the working table board (1) through a die holder (5), the right end of the operating rod (4) is arranged on the die holder (5) through a fixed shaft (6), and the movable module (3) is arranged on the guide block (22) and arranged on the operating rod (4) through a driven shifting shaft (7);

the limiting mechanism comprises a limiting seat (8) arranged on the working table plate (1), and a limiting adjusting screw (9) is arranged in the limiting seat (8);

the stroke adjusting mechanism comprises an adjusting seat (10) arranged on the working table plate (1), and a stroke adjusting screw rod (11) is arranged in the adjusting seat (10);

the pneumatic mechanism comprises a bending cylinder (12), the rear upper end of the cylinder body of the bending cylinder (12) is arranged on a sliding seat I (13) connected with a stroke adjusting screw rod (11), a cylinder rod joint (14) is arranged on a cylinder rod extending out of the bending cylinder (12) towards the front lower direction, and the cylinder rod joint (14) is arranged on a sliding seat II (26) and is abutted against a limiting adjusting screw rod (9);

the left end of the operating rod (4) is connected with a cylinder rod joint (14) through a driving toggle shaft (15).

2. The precision sheet part pneumatic bending apparatus according to claim 1, wherein: a pneumatic controller (18) connected with a power supply is arranged at the upper right part of the workbench plate (1), and the pneumatic controller (18) is connected with a manual switch, a foot switch, a sensor (23) and an air supply mechanism (20) through a cable group (25).

3. The precision sheet part pneumatic bending apparatus according to claim 2, wherein: and the pneumatic controller (18) is provided with a selection switch, an electronic display counting screen and a delay adjustable relay for controlling the die assembly time of the movable module (3) and the shaping module (2).

4. The pneumatic bending device for precision thin-sheet parts according to any one of claims 1 to 3, wherein: the working table plate (1) is arranged on a horizontal mold bottom plate (17) through a left side plate (16) and a right side plate (16), and an included angle between the mold bottom plate (17) and the working table plate (1) is 20-70 degrees.

Technical Field

The invention relates to a pneumatic stamping technology, in particular to a pneumatic bending device for precision sheet parts.

Background

At present, a small precision sheet part is bent by a manual bending tool.

For example, the unit of the applicant, more than 200 manual bending tools are commonly used, about 30 to 50 new tools are added each year, and each tool needs to be independently and completely processed without universality.

Manual bending frock needs to place the processing part and personally submit 90 with the level, and the part is placed the precision and is different from person to person, and the part is crooked to be influenced by the human factor greatly, and the bending force is unstable, and workman intensity of labour is big.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a pneumatic bending device for precision sheet parts, aiming at stabilizing the pneumatic bending force and forming an interchangeable quick-replacing standard part for a forming part and solving the problems of large influence of human factors on a manual bending tool, unstable bending force, high labor intensity of workers and the like in the prior art.

The pneumatic bending device of precision sheet part that can solve above-mentioned technical problem, its technical scheme includes the crooked frock module based on the setting of work platen, crooked frock module is including the setting module and the moving die piece that the part was used of bending, and the institute is different:

1. the bending tool module is arranged at the right lower part of the working table plate, a metal trigger proximity switch with a sensor is arranged on the working table plate above the right side of the bending tool module, a limiting mechanism is arranged at the left lower part of the working table plate, a pneumatic mechanism is arranged at the left upper part of the working table plate through a stroke adjusting mechanism, and an operating rod is arranged between the pneumatic mechanism and the bending tool module.

2. The shaping module is installed on the working table plate through the die holder, the right end of the operating rod is installed on the die holder through a fixed shaft, and the movable module is installed on the guide block and installed on the operating rod through a driven shifting shaft.

3. The limiting mechanism comprises a limiting seat arranged on the working table plate, and a limiting adjusting screw is arranged in the limiting seat.

4. The stroke adjusting mechanism comprises an adjusting seat arranged on the working table plate, and a stroke adjusting screw rod is arranged in the adjusting seat.

5. The pneumatic mechanism comprises a bending air cylinder, the rear upper end of the cylinder body of the bending air cylinder is arranged on a sliding seat connected with the stroke adjusting screw rod, the sliding seat is slidably arranged in a sliding groove formed in the adjusting seat, a cylinder rod joint is arranged on a cylinder rod extending out of the bending air cylinder towards the front lower side, and the cylinder rod joint is arranged on a sliding seat II and is abutted to the limiting adjusting screw rod.

6. The left end of the operating rod is connected with the cylinder rod connector through the driving toggle shaft.

Further, a pneumatic controller connected with a power supply is arranged at the upper right part of the workbench plate, and the pneumatic controller is connected with a manual switch, a foot switch, a sensor and a gas source mechanism through a cable set.

Furthermore, a selection switch (stop, manual or pedal), an electronic display counting screen and a delay adjustable relay for controlling the mold closing time of the movable mold module and the shaping module are arranged on the pneumatic controller (so as to weaken the rebound deformation of the bent part and improve the size consistency of the bent part).

Conventionally, the working table plate is installed on a horizontal mold bottom plate through a left side plate and a right side plate, and an included angle between the mold bottom plate and the working table plate is designed to be 20-70 degrees for convenient operation.

The invention has the beneficial effects that:

1. the pneumatic bending device for the precision sheet part absorbs the advantages of the manual bending tool according to the field operation habit, avoids the defects, ensures that the bending tool module meets the requirement of the specified index, has interchangeability, realizes quick die change, and can be directly used by other standard working modules (namely a movable module and a shaping module) of the manual bending tool.

2. The invention can be popularized and applied according to the requirements of actual production due to the universality and the pneumatic stability.

Drawings

FIG. 1 is a front view of one embodiment of the present invention.

Fig. 2 is a left side view of the embodiment of fig. 1.

Fig. 3 is a schematic structural view of an operation lever in the embodiment of fig. 1.

Fig. 4 is an alignment diagram of the movable mold block and the fixed mold block in the embodiment of fig. 1, which is shown in a mold splitting state.

And (3) identifying the figure number: 1. a work table; 2. a shaping module; 2-1, positioning a groove; 3. a movable module; 4. an operating lever; 5. a die holder; 6. a fixed shaft; 7. a driven toggle shaft; 8. a limiting seat; 9. a limit adjusting screw rod; 10. an adjusting seat; 11. a stroke adjusting screw; 12. a bending cylinder; 13. a sliding seat I; 14. a cylinder rod joint; 15. an active shifting shaft; 16. a side plate; 17. a mold base plate; 18. a pneumatic controller; 19. a metal-triggered proximity switch; 20. an air source mechanism; 21. a gas dryer; 22. a guide block; 23. a sensor; 24. a safety shield; 25. a cable group; 26. and a sliding seat II.

Detailed Description

The technical solution of the present invention will be further explained with reference to the embodiments shown in the drawings.

The invention discloses a pneumatic bending device for precision sheet parts, which comprises a bending tool module, a limiting mechanism, a stroke adjusting mechanism, a pneumatic controller 18 and an operating rod 4 which are arranged on a working table plate 1.

The workbench plate 1 is installed on a horizontal mold bottom plate 17 through a left vertical side plate 16 and a right vertical side plate 16 in a backward inclining manner, and an included angle between the mold bottom plate 17 and the workbench plate 1 is designed to be 20-70 degrees, as shown in fig. 1 and 2.

The bending tool module (including the shaping module 2 and the movable module 3) is arranged at the right lower part of the working table plate 1, the shaping module 2 is arranged on the working table plate 1 through the die holder 5, the movable module 3 is arranged on the guide block 22 at the front upper part of the shaping module 2, the metal trigger proximity switch 19 (sensitive to metal pieces only and within 2 mm) higher than the module is arranged on the working table plate 1 beside the right sides of the shaping module 2 and the movable module 3 through a support seat, the front end of the metal trigger proximity switch 19 faces the die assembly position, and the rear end of the metal trigger proximity switch 19 is connected with a sensor 23, as shown in fig. 1.

In the above structure, the shaping module 2 and the movable module 3 have a portable structure with universality, standardization and quick replacement, as shown in fig. 1 and 4.

The operating rod 4 is horizontally arranged above the movable module 3, the right end of the operating rod 4 is installed on the working table board 1 through a fixed shaft 6, the rod body of the operating rod 4 is installed on the movable module 3 through a driven stirring shaft 7, and the left end of the operating rod 4 extends out of the left side of the movable module 3, as shown in fig. 1.

The limiting mechanism is arranged at the left lower part (located at the left side of the bending tool module) on the working table plate 1, the limiting mechanism comprises a limiting seat 8 arranged on the working table plate 1, a limiting adjusting screw 9 is screwed in a seat body of the limiting seat 8, and the end head of the limiting adjusting screw 9 extends out of the limiting seat 8 towards the rear upper part, as shown in fig. 1 and 2.

The stroke adjusting mechanism is arranged at the upper left side (right opposite to the limiting mechanism) of the working table plate 1 and comprises an adjusting seat 10 arranged on the working table plate 1, a stroke adjusting screw 11 is screwed in a seat body of the adjusting seat 10, the end of the stroke adjusting screw 11 extends out of the adjusting seat 10 towards the front lower side, the extending end of the stroke adjusting screw 11 is connected with a sliding seat I13, and the sliding seat I13 is slidably arranged in a sliding groove formed in the seat body of the adjusting seat 10, as shown in fig. 1 and 2.

The pneumatic mechanism comprises a bending cylinder 12 arranged between a limiting mechanism and a stroke adjusting mechanism, the rear upper end of a cylinder body of the bending cylinder 12 is fixedly connected to a sliding seat I13, a cylinder rod (extending towards the front lower part) of the bending cylinder 12 is connected with a cylinder rod connector 14, the bottom of the cylinder rod connector 14 is slidably mounted in a sliding plate sliding groove arranged on the workbench plate 1 through a sliding seat II 26, the front lower end of the cylinder rod connector 14 abuts against the end of a limiting adjusting screw 9, and the top of the cylinder rod connector 14 is connected with the left end of an operating rod 4 through a driving poking shaft 15; the cylinder body of the bending cylinder 12 is connected with an air source mechanism 20 with an air dryer 21 through an air inlet valve and an air outlet valve, and the air source mechanism 20 is arranged on the left side plate 16; a safety cover 24 is mounted on the work table 1 to protect the rod-to-rod joint 14 of the bending cylinder 12, as shown in fig. 1 and 2.

The stroke of the cylinder rod of the bending cylinder 12 (determining the deflection angle of the operating rod 4) is determined by the joint adjustment action of the stroke adjusting screw 11 and the limit adjusting screw 9, and when the stroke adjusting screw 11 is adjusted to the right position, the stroke of the cylinder rod (the deflection angle of the operating rod 4 is smaller) is the more the limit adjusting screw 9 is adjusted upwards.

The pneumatic controller 18 with the delay adjustable relay is arranged at the upper right of the working table board 1 (right opposite to the bending tool module), the pneumatic controller 18 is connected with a 220V alternating current power supply through a cable plug, the pneumatic controller 18 is further respectively connected with a manual switch, a foot switch, a sensor 23, a gas source mechanism 20 and a gas dryer 21 through a cable group 25, the working voltage of each electric component is a safe voltage smaller than 24V, a selector switch and an electronic display counting screen are arranged on the pneumatic controller 18, and the three rotation stop positions of the selector switch are respectively aligned to character marks of stop, hand and foot, as shown in figure 1.

The working steps of the invention are as follows:

1. the power supply of the air controller 18 is connected, the switch of the air source mechanism 20 is opened, and the pressure regulating range of the bending cylinder 12 is set within 1 MPa.

2. The selector switch is turned to the "foot" position.

3. The right hand holds the tweezers to clamp the part to be bent and formed and then places the part on the positioning groove 2-1 of the shaping module 2.

4. The right hand holds the forceps and touches the metal trigger proximity switch 19 or the foot pedal.

5. The cylinder rod of the bending cylinder 12 extends out to drive the operating rod 4 to act, and the operating rod 4 uses the fixed shaft 6 as a rotating fulcrum to push the movable mould module 3 to carry out mould closing movement towards the shaping module 2 so as to bend and form a part.

The mold closing time of the movable mold module 3 and the shaping module 2 is adjusted through a delay relay, and the adjusting range is larger than 5 seconds.

6. After the part is bent and formed, the cylinder rod of the bending cylinder 12 retracts to drive the operating rod 4 to move, and the operating rod 4 pushes the movable module 3 to be separated from the fixed module 2 (demoulding) by taking the fixed shaft 6 as a rotating fulcrum.

7. The bent parts are taken out from the positioning grooves 2-1 by tweezers.

8. And continuously repeating the working steps of 3-7 to continuously perform the bending forming operation of the parts, wherein the bending forming quantity of the parts is displayed on an electronic display counting screen of the pneumatic controller 18.