阅读说明：本技术 一种斜楔浮动冲孔机构 (Floating punching mechanism for wedge ) 是由 顾龙龙 袁国波 陈全伟 万晓鹏 雷庆 李芳芳 胡志伟 于 2019-11-20 设计创作，主要内容包括：本发明公开了一种斜楔浮动冲孔机构,包括到位机构、浮动机构、冲孔机构,所述到位机构位于整套装置的最下方,所述到位机构上方设置有浮动机构,所述浮动机构一侧设置有冲孔机构,本发明科学合理,使用安全方便,斜楔浮动冲孔机构通过斜楔把油缸输出的垂直力转换成水平方向的冲裁力,这样冲孔部分体积小,能适应更多形状的副车架或者其他零件的冲裁需求,连接板二与连接板之间的浮动设计,实现斜楔冲孔机构来适应由于焊接产生的被冲裁面的位置度公差容许范围内的波动,有浮动机构存在,就会避免对于需要冲孔的面有轮廓度容许一定波动范围的就会硬拉被冲面的现象,从而造成被冲零件的损伤。(The invention discloses a wedge floating punching mechanism, which comprises an in-place mechanism, a floating mechanism and a punching mechanism, wherein the in-place mechanism is positioned at the lowest part of a whole set of device, the floating mechanism is arranged above the in-place mechanism, and the punching mechanism is arranged at one side of the floating mechanism. Thereby causing damage to the punched part.)

1. The utility model provides a slide wedge mechanism of punching a hole that floats which characterized in that: the punching device comprises an in-place mechanism, a floating mechanism and a punching mechanism, wherein the in-place mechanism is positioned at the lowest part of the whole device, the floating mechanism is arranged above the in-place mechanism, and the punching mechanism is arranged on one side of the floating mechanism.

2. The tapered wedge floating punch mechanism of claim 1, wherein: the in-place mechanism comprises a base (101), a guide rail (102), a sliding block (103) and a supporting block (104), wherein the base (101) is located at the lowest end of the in-place mechanism, the guide rail (102) is fixedly installed above the base (101), the sliding block (103) is installed on the guide rail (102) in a sliding mode, and the supporting block (104) is fixedly installed above the sliding block (103).

3. The tapered wedge floating punch mechanism of claim 1, wherein: the floating mechanism comprises a connecting block (14), a reset detection sensor (15), a guide rail sliding block (20), a connecting plate (21), a first connecting block (16-L), a second connecting block (16-R), a nitrogen spring (17), a second connecting plate (18), a left nitrogen spring mounting block (19-L) and a right nitrogen spring mounting block (19-R), wherein the two guide rail sliding blocks (20) are fixedly mounted on the connecting plate (21), one side of a sliding block (103) of the guide rail sliding block (20) is fixedly mounted on the connecting plate (21), the second connecting plate (18) is fixedly mounted on one side of a guide rail (102) of the guide rail sliding block (20), the left nitrogen spring mounting block (19-L) and the right nitrogen spring mounting block (19-R) are fixedly mounted on two sides of the upper end of the plate surface of the connecting plate (21), and the nitrogen spring (17) is fixedly mounted in the, nitrogen spring (17) keep away from left nitrogen spring installation piece (19-L) one end fixed mounting and have connecting block one (16-L), fixed mounting has nitrogen spring (17) in right side nitrogen spring installation piece (19-R), nitrogen spring (17) keep away from right nitrogen spring installation piece (19-R) one end fixed mounting and have connecting block two (16-R), fixed mounting has connecting block (14) between left side nitrogen spring installation piece (19-L) and right nitrogen spring installation piece (19-R), connecting block (14) one end fixed mounting is on connecting plate two (18), fixed mounting has detection sensor (15) that resets on connecting block (14).

4. The tapered wedge floating punch mechanism of claim 1, wherein: the punching mechanism comprises a sensor (13), a connecting plate (10), a connecting block (11), a shell (12), a die holder (9), a female die (8-R), a left female die (8-L), a wedge die holder (7-R), a nitrogen spring II (5), a nitrogen spring III (6), a guide pillar (4), an oil cylinder (1-L), a connecting block II (2-L), a wedge plate (3-R), a connecting block III (2-R) and an oil cylinder (1-R), the connecting block (11) is positioned on one side of the punching mechanism, the shell (12) is fixedly installed on the connecting block (11), the connecting plate (10) is fixedly installed at one end, far away from the connecting block (11), of the shell (12), the sensor (13) is fixedly installed on the side plate surface of the connecting plate, the punching mechanism comprises a connecting plate (10), a connecting block (11) and a shell (12) which jointly form a carrier of the punching mechanism, wherein an oil cylinder (1-L) is fixedly arranged at the top of the carrier, a connecting block II (2-L) is fixedly arranged on a piston rod of the oil cylinder (1-L), a wedge plate (3-L) is fixedly arranged at the other end of the connecting block II (2-L), a wedge die holder (7-L) is arranged below the wedge plate (3-L), a female die (8-L) is fixedly arranged at the bottom of the wedge die holder (7-L), an oil cylinder (1-R) is fixedly arranged at the top of the carrier, a connecting block II (2-L) is fixedly arranged on a piston rod of the oil cylinder (1-R), and a wedge plate (3-R) is fixedly arranged at the other end of the connecting, a wedge die holder (7-R) is arranged below the wedge plate (3-R), a female die (8-R) is fixedly mounted at the bottom of the wedge die holder (7-R), a die holder (9) is fixedly mounted at the bottom end of the shell (12), and two guide pillars (4) are rigidly connected to the middle of the shell (12).

5. The tapered wedge floating punch mechanism according to claim 3 or 4, wherein: the shell (12) is fixedly connected with the second connecting plate (18).

6. A cam floating punch mechanism according to claim 2 or 3, wherein: the supporting block (104) is fixedly connected with the connecting plate (21).

Technical Field

The invention relates to the technical field of automobile equipment, in particular to a tapered wedge floating punching mechanism.

Background

In the automobile equipment field, automobile parts are mostly welded or cast, and in order to guarantee the precision of pilot hole, mostly adopt last process to guarantee through punching equipment, if: chassis module, seat, exhaust, oil filling pipe, bumper (working of plastics). Particularly, for front and rear auxiliary frames on a chassis part, the position accuracy requirement of holes is high and most of the holes are formed by arc welding, the arc welding causes large deformation and is difficult to control, if the quality stability of parts is difficult to guarantee without being guaranteed by punching equipment after welding, the existing punching mechanisms have no floating mechanism, and the punched surface is hard pulled due to the fact that the profile of the surface needing punching has a certain fluctuation range, so that the punched surface is damaged (the welding part can be pulled to crack), or the punched part rebounds after punching is finished, so that the hole position accuracy fluctuates; in addition, the cylinder axis and the punch axis of the mechanism are parallel (certain requirement is required for space), and the accessibility is not feasible in a place with limited space at the position to be punched, so that a tapered wedge floating punching mechanism is needed to solve the problems.

Disclosure of Invention

The invention aims to provide a wedge floating punching mechanism to solve the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme:

the wedge floating punching mechanism comprises an in-place mechanism, a floating mechanism and a punching mechanism, wherein the in-place mechanism is located at the lowest part of the whole device, the floating mechanism is arranged above the in-place mechanism, and the punching mechanism is arranged on one side of the floating mechanism.

The in-place mechanism comprises a base, a guide rail, a sliding block and a supporting block, the base is located at the lowest end of the in-place mechanism, the guide rail is fixedly installed above the base, the sliding block is installed on the guide rail in a sliding mode, the supporting block is fixedly installed above the sliding block, the in-place mechanism is respectively connected with the punching mechanism and the floating mechanism, the punching mechanism and the floating mechanism are conveyed to a target position to be punched, the guide rail sliding block is pushed by an air cylinder to move to the target position of punching on the guide rail, then the air cylinder bolt mechanism is plugged, and a hard limit stop block is arranged when the guide rail sliding block is conveyed to the target position, so that the position stability of the punching mechanism is reliably guaranteed, the position accuracy of a punched hole is guaranteed, the in-place mechanism achieves in-place operation in.

The floating mechanism comprises a connecting block, a reset detection sensor, guide rail sliders, a connecting plate, a first connecting block, a second connecting block, a nitrogen spring, a second connecting plate, a left nitrogen spring mounting block and a right nitrogen spring mounting block, wherein the two guide rail sliders are fixedly mounted on the connecting plate, one side of each guide rail slider is fixedly mounted on the second connecting plate, the left nitrogen spring mounting block and the right nitrogen spring mounting block are fixedly mounted on the two sides of the upper end of the surface of the connecting plate, the nitrogen spring is fixedly mounted in the left nitrogen spring mounting block, one end, far away from the left nitrogen spring mounting block, of the nitrogen spring is fixedly mounted with the first connecting block, the nitrogen spring is fixedly mounted in the right nitrogen spring mounting block, one end, far away, a connecting block is fixedly arranged between the left nitrogen spring mounting block and the right nitrogen spring mounting block, one end of the connecting block is fixedly arranged on a second connecting plate, a reset detection sensor is fixedly arranged on the connecting block, the design of a floating mechanism is convenient for the punching mechanism to adapt to the fluctuation in the position tolerance range of a punched surface generated by welding, the floating mechanism exists, the problem that the profile tolerance of the surface required to be punched has a certain fluctuation range can be avoided, the punched surface is hard pulled to cause the damage of the punched part (the welding part can be pulled apart), or the punched part rebounds to cause the fluctuation of the hole position precision after punching is finished can be avoided, the second connecting plate and the connecting plate realize the opposite or relative movement of the two mechanisms along the sliding pair through the sliding pair (the sliding pair in the form of one of guide rails shown in the drawing) to achieve the purpose of floating, and further realize that the wedge punching mechanism adapts to the position tolerance range The fluctuation in the enclosure, there are two reset mechanisms on the left and right sides in the direction of the sliding pair, to realize the function of the wedge punching mechanism to return to the original position after finishing punching, as shown in the figure, there are two nitrogen springs on the left and right sides, one of the two nitrogen springs is always contacted and stressed, mainly plays the function of returning to the original position, the other nitrogen spring is not contacted and stressed when in the original position, and is compressed and stressed only when finishing punching, and when just finishing punching, plays the function of assisting to pull out the die from the punched part, only there is one nitrogen spring always contacted and stressed on the left and right sides, the counterforce is the minimum when the punching mechanism is self-adapting due to the fluctuation of the punched surface when punching, thus the force transmitted to the punched surface is the minimum, the damage and deformation to the workpiece and the stability influence on the size are the minimum, the sliding pair of the second floating mechanism can not be a guide rail, the second floating mechanism can also be a guide post, a sliding block and the like, and the resetting effect of the second floating mechanism can be realized without using a nitrogen spring and in other forms, such as an air cylinder, an oil cylinder, a motor, other springs and the like.

The punching mechanism comprises a sensor, a connecting plate, a connecting block, a shell, a die holder, a female die, a left female die-L, a wedge die holder, a nitrogen spring II, a nitrogen spring III, a guide pillar, an oil cylinder, a connecting block II, a wedge plate, a connecting block III and an oil cylinder, the connecting block is positioned on one side of the punching mechanism, the shell is fixedly installed on the connecting block, the connecting plate is fixedly installed at one end of the shell, which is far away from the connecting block, the sensor is fixedly installed on the side plate surface of the connecting plate, the connecting block and the shell jointly form a carrier of the punching mechanism, the oil cylinder is fixedly installed at the top of the carrier, the connecting block II is fixedly installed on a piston rod of the oil cylinder, the wedge plate is fixedly installed at the other, the punching and piercing die is characterized in that an oil cylinder is fixedly mounted at the top of the carrier, a second connecting block is fixedly mounted on a piston rod of the oil cylinder, a wedge plate is fixedly mounted at the other end of the third connecting block, a wedge die holder is arranged below the wedge plate, a female die is fixedly mounted at the bottom of the wedge die holder, a die holder is fixedly mounted at the bottom end of the shell, two guide posts are rigidly connected to the middle of the shell, and left and right oil cylinder pistons respectively and sequentially extend out of two holes of the hole group and a boss to complete punching, piercing. The vertical force output by the oil cylinder is converted into the blanking force in the horizontal direction through the wedge, so that the punched part is small in size, can meet the punching requirements of more auxiliary frames or other parts in shapes, and is simple in structure and high in adaptability, the oil cylinder is driven by the wedge mechanism to convert the force output direction of an oil cylinder piston into the force of a punching die moving along the direction of a double guide pillar, the moving direction of the guide pillar can form any angle with the axis of the oil cylinder piston, the drawing shows that the guide pillar forms an angle with the axis of the oil cylinder piston, a lubricating oil channel and an oil groove are arranged in the double guide pillar, the sliding side faces of the wedge and a fixed shell and the force transmission faces of the wedge and a die holder are provided with the lubricating oil channel and the oil groove, so that the friction damage is reduced, the service life is prolonged, the mechanism is more stable and reliable in operation, the angle of a wedge block of the punching mechanism, the guide post can be other sliding pairs such as a sliding block, a guide rail and the like, the oil cylinder can be other power such as an air cylinder, a motor and the like, the shell is fixedly connected with the second connecting plate, and the supporting block is fixedly connected with the connecting plate.

Compared with the prior art, the invention has the beneficial effects that:

the wedge floating punching mechanism converts vertical force output by the oil cylinder into blanking force in the horizontal direction through the wedge, so that the punched part is small in size and can meet the blanking requirements of more-shaped auxiliary frames or other parts, the structure is simple and strong in adaptability, the connecting plate II and the connecting plate realize the purpose that the two mechanisms float along the opposite or relative motion of the sliding pair through the sliding pair, so that the wedge punching mechanism can adapt to fluctuation in a tolerance allowable range of the position degree of a blanked surface generated by welding, two reset mechanisms are respectively arranged on the left and the right in the direction of the sliding pair, the wedge punching mechanism has the function of recovering to the original position after blanking, the floating mechanism exists, the phenomenon that the blanked surface is hard pulled when the profile degree of the surface needing to be punched is allowed to be within a certain fluctuation range can be avoided, and the punched part is damaged (a welded part can be pulled and cracked), or the punched part rebounds after punching to cause the fluctuation of hole position precision, compared with the prior art, the scheme of the invention needs less driving parts, and the corresponding switches, control valves and other matching parts have less quantity, simple structure, low cost and small occupied space.

Drawings

FIG. 1 is a schematic sectional view of a punching mechanism of a floating wedge punching mechanism according to the present invention;

FIG. 2 is a schematic side view of a floating wedge punching mechanism according to the present invention;

FIG. 3 is a schematic structural diagram of the positional relationship among a punching mechanism, a floating mechanism and an in-place mechanism of the floating punching mechanism of the wedge of the invention;

FIG. 4 is a schematic structural diagram of a punching object subframe of the floating wedge punching mechanism according to the present invention;

FIG. 5 is a schematic structural view of a floating mechanism of a floating wedge punching mechanism according to the present invention;

FIG. 6 is a schematic structural diagram of an in-place mechanism of the floating wedge punching mechanism of the present invention.

13. A sensor; 10. a connecting plate; 11. connecting blocks; 12. a housing; 9. a die holder; 8-R, a right female die; 8-L, a left female die; 7-L, a left wedge die holder; 7-R, a right wedge die holder; 5. a nitrogen spring II; 6. a nitrogen spring III; 4. a guide post; 1-L, a left oil cylinder; 2-L and a second connecting block; 3-L, a left wedge plate; 3-R, a right wedge plate; 2-R and a third connecting block; 1-R, a right oil cylinder; 101. a base; 102. a guide rail; 103. a slider; 104 a supporting block; 14. connecting blocks; 15. resetting the detection sensor; 20. a guide rail slider; 21. a connecting plate; 16-L and a first connecting block; 16-R and a connecting block II; 17. a nitrogen spring; 18. a second connecting plate; 19-L and a left nitrogen spring mounting block; 19-R and a right nitrogen spring mounting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.