Cam device with reverse inclined wedge mechanism

Abstract

The utility model relates to a cam device with a reverse inclined wedge-shaped mechanism, and belongs to the technical field of metal stamping machining. The cam device with the reverse inclined wedge mechanism is characterized in that the cam device is provided with a cam driver fixed on a lower die; the cam bracket is fixed on the upper die; the present invention relates to a reciprocating mechanism for a motor vehicle, the reciprocating mechanism comprising a cam holder having a plurality of slider sections arranged at predetermined intervals in a reciprocating direction, and a cam slider slidably movable with respect to the cam holder, the cam holder comprising: a groove section that extends in the reciprocating direction and accommodates the plurality of slider sections so as to be capable of guiding in the reciprocating direction, and a guide section that extends in the reciprocating direction and accommodates the plurality of slider sections so as to be capable of guiding in the reciprocating direction; and a holding part which is in contact with the plurality of slider parts and holds the plurality of slider parts in the groove part, the holding part being a plurality of plates attached to both sides of the groove part, and the via hole part being formed by the combination of the notches of the plurality of plates attached to both sides of the groove part.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal stamping processing technical field especially, it relates to a cam device with reverse oblique wedge mechanism. BACKGROUND

[0002] In the development of automobiles, various panels are designed based on the arrangement of mounting holes. These mounting holes have different functions and different processing directions. For reasons such as the distance from the cam unit setting position to the perforation position not being far enough, the existing overhanging cam unit sometimes cannot meet the requirements for processing parts. The existing general method can process the punch by adding a process or reversing the part, but it is difficult to add a process or reverse the part in an automatic production line. SUMMARY

[0003] PROBLEMS TO BE SOLVED BY THE UTILITY MODEL

[0004] In the case where the distance from the cam unit setting position to the perforation position is not far enough, a cam device with a reverse oblique wedge mechanism is sometimes used, but in the overall length of the existing cam device with a reverse oblique wedge mechanism, the distance from the cam unit setting position to the perforation position is sometimes not enough, and a cam device with a reverse oblique wedge mechanism that is longer than the existing one is required. In addition, as the overall length increases, when pulling out the cam slider from the cam bracket, it is necessary to ensure that the space behind the cam bracket is larger than that of the existing cam device with a reverse oblique wedge mechanism, and assembly and disassembly become difficult.

[0005] To solve this problem, it is necessary to invent a cam device with a reverse oblique wedge mechanism that can be processed even when the distance from the cam unit setting position to the perforation position is not enough in the overall length of the existing cam device with a reverse oblique wedge mechanism, and to inhibit the space behind the cam bracket and make assembly and disassembly easy.

[0006] The utility model aims at providing a cam device that is longer than the existing cam device with a reverse oblique wedge mechanism, and even if the overall length increases, the space behind the cam bracket can be inhibited and assembly and disassembly can be made easy, in order to solve the shortcomings of the prior art.

[0007] MEANS FOR SOLVING THE PROBLEM

[0008] The utility model discloses a technical solution that includes the following elements: a cam device with a reverse inclined wedge mechanism, characterized in that it includes: a cam driver fixed to a lower mold; a cam support fixed to an upper mold; and a cam slider that can slide relative to the cam support, the cam driver is arranged below the cam slider, the cam support is arranged above the cam slider, a cam bottom guide plate is arranged above the cam driver, a cam bottom slide plate is arranged below the cam slider, the cam bottom guide plate and the cam bottom slide plate slide between the cam driver and the cam slider, a punch toward the inside lower side is fixed to the top end of the cam slider, the cam slider and the cam support slide through an upper plate and a lower slider, the cam slider has a plurality of slider parts arranged at a specified interval in the reciprocating direction, the cam support has: a groove part that is elongated along the reciprocating direction and accommodates the plurality of slider parts in a manner that allows them to be guided along the reciprocating direction; and a retaining part that abuts against the plurality of slider parts to retain them in the groove part, the retaining part is a plurality of plates installed on both sides of the groove part, and a via part is formed by the combination of the notches of the plurality of plates installed on both sides of the groove part.

[0009] Practical new type effect

[0010] According to the utility model, a cam device with a reverse inclined wedge mechanism can be provided, the full length of the cam device with the reverse inclined wedge mechanism can be lengthened, punch processing can be performed on mounting holes that cannot be processed by the existing cam device with the reverse inclined wedge mechanism, the space behind the cam support is inhibited, and assembly and disassembly are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 is a punch processing schematic diagram of the cam device with the reverse inclined wedge mechanism.

[0012] Figure 2 is an exploded view of the cam device with the reverse inclined wedge mechanism of the utility model.

[0013] Figure 3 is a diagram showing the cam support of the cam device with the reverse inclined wedge mechanism of the utility model.

[0014] Figure 4 is a diagram showing the cam slider of the cam device with the reverse inclined wedge mechanism of the utility model.

[0015] Figure 5 is a structural diagram of the cam device with the reverse inclined wedge mechanism of the utility model.

[0016] Figure 6 is a diagram showing the cam slider and the cam support during disassembly and assembly.

[0017] BRIEF DESCRIPTION OF REFERENCE NUMERALS

[0018] 1: cam driver lower mold mounting portion

[0019] 2: cam base guide plate

[0020] 5: cam bracket

[0021] 50: rectangular block

[0022] 51: connecting block

[0023] 52: L-shaped mounting portion

[0024] 8: stop plate

[0025] 9: stopper

[0026] 12: cam slider

[0027] 12a, 12b: protrusion

[0028] 120: connecting portion

[0029] 121: rear end

[0030] 122: front end

[0031] 123: perforating punch mounting surface

[0032] 13: cam base slide plate

[0033] 14, 15: lower slider

[0034] 20: coil spring

[0035] 21: spring guide pin

[0036] 22: spring guide washer

[0037] 23: stop pin

[0038] 24: spring stopper

[0039] 25: gas spring

[0040] 200: cam driver

[0041] 502 to 505: upper plate

[0042] 600: perforating punch

[0043] 700: panel

[0044] 800: cam unit setting position DETAILED DESCRIPTION

[0045] The present application will be described in more detail below with reference to the accompanying drawings and specific embodiments, but these do not limit the structure of the present application.

[0046] As shown in Figure 1 , in the case of perforating the panel 700 in the H direction, if the cam unit setting position 800 is to the left (direction M) of the boundary line J of the perforating position, even the existing upper suspension cam unit can perform perforation in the H direction, but if the cam unit setting position 800 is to the right (direction L) of the boundary line J, perforation in the H direction cannot be performed. In such a case, perforation in the H direction is performed using a cam device having a reverse inclined wedge mechanism, but in the case where the distance from the cam unit setting position 800 to the perforating position is far, even the existing cam device having a reverse inclined wedge mechanism cannot perform perforation. In addition, even in the case of lengthening the overall length of the cam device having a reverse inclined wedge mechanism to cope with it, the rear space of the cam bracket corresponding to the amount of lengthening of the overall length is required, and assembly and disassembly become difficult.

[0047] As shown in Figure 2 , the embodiment is a cam device having a reverse inclined wedge mechanism, characterized by comprising: a cam driver 200 fixed to a lower die; a cam bracket 5 fixed to an upper die; and a cam slider 12 slidably movable with respect to the cam bracket 5, the cam driver 200 being disposed below the cam slider 12, the cam bracket 5 being disposed above the cam slider 12, the cam driver 200 being assembled with a cam bottom guide plate 2, the cam bottom slide plate 13 being assembled with the top end of the rear end of the cam slider 12, the cam bottom slide plate 13 having a V-shaped groove and the cam bottom guide plate 2 having an inverted V shape sliding between the cam driver 200 and the cam slider 12, the perforating punch mounting surface 123 being provided at the hook-shaped portion of the front end 122 of the cam slider 12, the perforating punch 600 being fixed to the perforating punch mounting surface 123, and the panel being perforated.

[0048] Figure 3 is a diagram showing the cam bracket 5 of the embodiment. The cam bracket 5 has a groove 501b of a substantially concave cross section extending in the reciprocating direction of the cam slider 12. On the upper surface 501a of the groove 501b, a portion of the groove 501b is blocked from both sides of the groove 501b, a gap in which the cam slider 12 can reciprocate is provided, and upper plates 502 to 505 are installed. The gap between the upper plate 502 and the upper plate 503 and the gap between the upper plate 504 and the upper plate 505 are gaps through which the protrusions 12a and 12b can pass.

[0049] The upper plate 502 has an L-shaped notch 502a, the upper plate 503 has an L-shaped notch 503a, the upper plate 504 has an L-shaped notch 504a, and the upper plate 505 has an L-shaped notch 505a. These L-shaped notches 502a, 503a, 504a, and 505a are arranged in a manner that becomes a square, thereby becoming a rectangular through-hole portion 507. Here, the length of the through-hole portion 507 in the reciprocating direction of the cam follower 12 is set to l1, and the width is set to w1.

[0050] The cam holder 5 includes a rectangular block 50, a connecting block 51 connected perpendicularly to the rectangular block 50 at one end of the rectangular block 50, and an L-shaped mounting portion 52 connected to the other end. The upper plates 502 to 505 are assembled to the lower portion of the rectangular block 50 between the connecting block 51 connected to the rectangular block 50 and the L-shaped mounting portion 52. The stop plate 8 is detachably assembled to the L-shaped mounting portion 52.

[0051] The cam holder 5 has a groove portion elongated in the reciprocating direction, a plurality of slider portions housed in the groove portion in a manner that can be guided in the reciprocating direction, a holding portion abutting against the plurality of slider portions to hold the plurality of slider portions in the groove portion, and at least one through-hole portion 507 that can pass at least one of the plurality of slider portions in a direction perpendicular to the reciprocating direction at a prescribed position.

[0052] The through-hole portion 507 is provided substantially in the middle of the reciprocating direction of the groove portion. The through-hole portion 507 is formed by a combination of notches of a plurality of plates mounted to both sides of the groove portion.

[0053] Figure 4 FIG. 1 is a view showing a cam follower 12 of an embodiment. The cam follower 12 has a sliding surface 17 that becomes a sliding surface of upper plates 502 to 505 of a cam holder 5. The cam follower 12 has substantially cuboid-shaped protruding portions 12a, 12b substantially at both ends in the reciprocating direction of the sliding surface 17. The protruding portions 12a, 12b are provided at the width direction center of the sliding surface 17. A lower slider 15 that is substantially cuboid-shaped and has a width greater than that of the protruding portion 12a is provided on the protruding portion 12a. A lower slider 14 that is substantially cuboid-shaped and has a width greater than that of the protruding portion 12b is provided on the protruding portion 12b.

[0054] In the embodiment, the lengths of the substantially cuboid-shaped lower sliders 14, 15 in the reciprocating direction of the cam follower 12 are l2, and the widths are w2. The length l1 of the through-hole portion 507 is greater than the length l2 of the lower sliders 14, 15, and the width w1 of the through-hole portion 507 is greater than the width w2 of the lower sliders 14, 15. According to these dimensional relationships, the lower slider 14 can pass through the through-hole portion 507. In the embodiment, the width w2 of the lower sliders 14, 15 is a width that is fitted in the groove 501b in a manner that can be guided in the reciprocating direction of the cam follower 12.

[0055] The rear end 121 of the cam slider 12 is shaped like a substantially triangular shape, and the front end 122 is shaped like a hook. The joint portion 120 of the rear end 121 and the front end 122 is connected in a rectangular shape, or a partially curved surface, or a completely curved surface. A punch mounting surface 123 is provided in the hook-shaped portion of the front end 122, and a punch 600 is assembled in the punch mounting surface 123.

[0056] A gap is provided between the upper portion of the rear end 121 and the joint block 51. An elastic device is assembled in the gap. The elastic device assembles a coil spring 20, a spring guide pin 21, and a spring guide washer 22, or an air spring 25, a spring stopper 24, and a stopper pin 23. A cam bottom slide 13 is assembled in the lower portion of the rear end 121.

[0057] An inclined surface is provided on the upper portion of the cam driver 200. A cam bottom guide plate 2 is assembled in the inclined surface. A cam driver lower die mounting portion 1 is provided in the lower portion of the cam driver 200, and is fixed to a lower die via the cam driver lower die mounting portion 1.

[0058] Figure 5 is a diagram showing the operation of the cam device with a reverse inclined wedge mechanism according to the embodiment. The cam device with a reverse inclined wedge mechanism moves the cam bracket 5 along with the movement of the upper die in the direction of the arrow F. Thereafter, when the cam bottom slide 13 assembled in the cam slider 12 and the cam bottom guide plate 2 start to slide, the cam slider 12 starts to move in the direction of the arrow G through the upper plates 502 to 505 and the lower slides 14 and 15.

[0059] When the cam bottom slide 13 further moves along the cam bottom guide plate 2, the cam slider 12 also further moves in the direction of the arrow G. The front end of the cam slider 12 is shaped like a hook, and thus the punch 600 mounted in the punch mounting surface 123 of the cam slider 12 performs a punching process in the direction of the arrow H.

[0060] In addition, in the case where a point of the top end portion of the punch mounting surface 123 is set as I, a distance from the starting point of a perpendicular line drawn from the point I toward the direction F to the bottom surface of the cam driver 200 is set as D, and a distance from the back surface of the cam driver 200 to the distance D is set as C, the distance C is 133 mm or more and 163 mm or less, or 133 mm or more and 263 mm or less, or 133 mm or more and 363 mm or less, and the distance D is 114 mm or more and 168 mm or less, or 114 mm or more and 193 mm or less, or 114 mm or more and 218 mm or less.

[0061] By making the values of the distance C and the distance D larger than those of the existing cam device with a reverse inclined wedge mechanism, it is possible to perform a punching process on a portion that has not been able to be processed in the past.

[0062] Figure 6 is a diagram showing a cam slider and a cam bracket in a disassembled and assembled position of a cam device provided with a reverse inclined wedge mechanism.

[0063] Conventionally, in order to pull out the cam slider 12 from the cam bracket 5, after the stopper plate 8 is removed, it is necessary to move the cam slider 12 by the length of l2 in the drawing, and accordingly, a space (P in the drawing) is required. On the other hand, in the cam device provided with the reverse inclined wedge mechanism of the embodiment, since the lower slider 14 is detached from the through-hole portion 507 in the N direction in the drawing, it is possible to perform disassembly and assembly by moving only l1 in the drawing. Therefore, it is possible to reduce the space behind the cam bracket 5 by l2 - l1.

[0064] Further, the cam slider 12 is a heavy object, but in the embodiment, since the lower slider is divided into front and rear, the cam slider 12 can be inserted and pulled out in a state where it is always placed on the upper plates 504, 505 near the center of gravity at the time of disassembly and assembly, and thus workability is also improved.

[0065] The contents not described in detail in this specification belong to the prior art known to the skilled person and the skilled person.

Claims

1. A cam device with a reverse tilting wedge mechanism, characterized in that, Comprise: a cam driver fixed to a lower mold; a cam support fixed to an upper mold; and a cam slider slidably moved with respect to the cam support, the cam driver is disposed below the cam slider, the cam support is disposed above the cam slider, a cam bottom guide plate is disposed above the cam driver, a cam bottom slide plate is disposed below the cam slider, the cam bottom guide plate and the cam bottom slide plate slide between the cam driver and the cam slider, a punch toward the inside lower side is fixed to the top end of the cam slider, the cam slider and the cam support slide through an upper plate and a lower slider, the cam slider has a plurality of slider portions disposed at a predetermined interval in a reciprocating direction, the cam support has a groove portion elongated in the reciprocating direction to accommodate the plurality of slider portions in a manner capable of guiding in the reciprocating direction, and a holding portion that holds the plurality of slider portions in the groove portion by abutting against the plurality of slider portions, the holding portion is a plurality of plates installed on both sides of the groove portion, and the via portion is formed by the combination of the notches of the plurality of plates installed on both sides of the groove portion.

2. The cam device having a reverse inclined wedge mechanism according to claim 1, wherein there is at least one via portion through which at least one of the plurality of slider portions can pass in a direction perpendicular to the reciprocating direction.

3. The cam device having a reverse inclined wedge mechanism according to claim 1, wherein the via portion is disposed substantially in the middle of the reciprocating direction of the groove portion.

4. The cam device having a reverse inclined wedge mechanism according to claim 3, wherein in a case where a distance from a point of a lower end portion of a face of the punch of the cam slider to a bottom face of the cam driver is set as D, and a distance from a back face of the cam driver to the distance D is set as C, the distance C is 133 mm or more and 363 mm or less, and the distance D is 114 mm or more and 218 mm or less.

5. The cam device having a reverse inclined wedge mechanism according to claim 4, wherein a rear end of the cam slider is a substantially triangular block, a front end is a hook, and the rear end and the front end are connected by a partial curved surface or a full curved surface. ​

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