KR100419958B1 - Automatic busing swaging machine - Google Patents

Abstract

To reduce cost and productivity by automating the swaging machine for manufacturing bushings used in engine mounts and various suspension connection parts of automobiles, etc .;

Conveyor for conveying bushings,

A supply discharge part installed at an upper end of the support frame to supply and withdraw the bushing to the upper part of the conveyor;

A pressure extracting unit which presses and extracts the outer pipe of the bushing supplied by the supply discharge unit;

There is an excellent effect of providing an automatic bushing swaging machine including a control unit for electrically controlling the hydraulic control device to supply, pressurize, and take out the bushing by the conveyor, the supply discharge unit, and the pressure extracting unit.

Description

Automatic Bushing Swaging Machine {AUTOMATIC BUSING SWAGING MACHINE}

The present invention relates to an automatic bushing swaging machine, and more particularly, to supply and take out of a bushing associated with an outer diameter reduction operation of an outer pipe which is carried out after injection and vulcanization of a bushing used for engine mounts and various suspension connection parts of automobiles. It also relates to an automatic bushing swaging machine which is made automatically on-line.

In general, the bushing is injection-molded by the dust-proof rubber is filled between the inner pipe and the outer pipe, but to reduce the outer diameter of the outer pipe after injection vulcanization in order to improve the characteristics and extend the life of the dust-proof rubber.

The outer diameter reduction operation of the outer pipe is called a swaging operation, and the apparatus used therefor is called a swaging machine.

1 is a view schematically showing only the main parts of a conventional horizontal tapered swaging machine, the horizontal swaging machine 2 is a hydraulic cylinder portion 6 is installed to the back and forth by hydraulic pressure on one side of the upper plate (4). ), A push rod (10) assembled at the tip of the piston (8) of the hydraulic cylinder (6), and a taper hole (12) formed at regular intervals on the same axis as the hydraulic cylinder (6). It consists of a circular die | dye 14, and the normal control part, the oil pressure supply apparatus, etc. which were abbreviate | omitted as a peripheral apparatus are applied.

The horizontal swaging machine 2 pushes the bushing 16 supplied between the push rod 10 and the die 14 to the push rod 10 so as to pass through the taper hole 12 of the die 14. The outer diameter of 18 is reduced to extend the characteristics and extend the life of the anti-vibration rubber 20 interposed in the bushing 16.

The bushing 16 is made by injection-vulcanizing the anti-vibration rubber 20 between the inner pipe 22 and the outer pipe 18 and between the inner and outer pipes 22 and 18.

The push rod 10 has a distal end and is formed to double and contract with the bushing 16 when the die 14 passes through the taper hole 12.

FIG. 2 is a view schematically showing only a swaging machine main portion having a vertical taper type, and the same reference numerals are used to denote the same parts as those of FIG. 1.

The vertical swaging machine 23 includes a die 14 formed by vertically drilling a taper hole 12 on the upper plate 4 fixed to the support frame 24, and a support frame on which the die 14 is installed. 24) The hydraulic cylinder part 6 is provided perpendicularly to the mounting stand 26 fixed to the upper side, and the piston push rod 28 is assembled to this hydraulic cylinder part 6, and is made.

The horizontal and vertical swaging machine (2) (23) made as described above is a push rod (10) or a piston push rod (28) assembled at the tip of the piston (8) to be advanced by the operation of the hydraulic cylinder (6). The outer diameter of the outer pipe 18 is reduced by pushing the outer pipe 18 of the bushing 16 to pass through the taper hole 12 of the die 14.

By reducing the outer pipe 18 of the bushing 16, the dust-proof rubber 20 is stressed to improve soft characteristics, thereby prolonging durability and the like.

3 is a view schematically showing a swaging machine to which a split jig is applied in the prior art, wherein the split jig swaging machine 30 is vertically installed on a top plate 34 fixed to the support frame 32. The hydraulic cylinder part 40 is provided perpendicularly to the holder 38 which is fixed to the upper part of the support frame 32 which installed this division type jig 36, and the piston of this hydraulic cylinder part 40 is provided. (42) The taper press part 44 provided in the front-end | tip is provided and it is done.

The above-mentioned split jigsaw swaging machine 30 has a taper pressurization formed at the tip of the piston 42 which is advanced by the operation of the hydraulic cylinder part 40 while the bushing 46 is inserted on the split jig 36. The portion 44 presses the split jig 36 to reduce the outer pipe diameter of the bushing 46.

As described above, the horizontal and vertical swaging machines 2 and 23 shown in FIGS. 1 and 2 generate heat by friction when the bushing 16 passes through the taper hole 12 of the die 14. 18) is reduced in the outer diameter, there is a problem that the adhesive applied to the inner surface of the outer pipe (18) attached to the anti-vibration rubber 20 is deteriorated and destroyed.

There is a problem that the noise of the dust-proof rubber due to the breakdown of the adhesive may damage the dust-proof rubber, as well as reduce the durability of the bushing itself, thereby reducing the bearing capacity of the engine and the suspension, thereby causing the noise by transmitting external force as it is. .

In addition, the water-soluble or vegetable oil is applied to prevent the generation of frictional heat when the bushing passes through the taper hole of the die, and there is a problem of contaminating a swaging machine, a bushing, a bushing storage box, and the like to get dirty.

In addition, since the die is used in the swaging machine, since the outer pipe is applicable only to a straight product, there is a problem in that there is a limitation in use because it cannot be used universally.

As a result, as shown in FIG. 3, the proposed split jig swaging machine solves various problems of the swaging machine employing a die, but has a long operation stroke, which requires a lot of cycle time, and a large equipment, making it difficult to automate in an inline state. There is this.

The object of the present invention proposed to solve the problems of the prior art as described above is to reduce the cost by minimizing the cycle time and miniaturization by automating the swaging machine for manufacturing the bushing used for the engine mount and various suspension connection parts such as automobiles To provide a bushing swaging machine to improve the productivity.

1 is a view schematically showing only the main portion of a swaging machine of the conventional horizontal tapered type.

Figure 2 schematically shows only the main part of the swaging machine of the conventional vertical tapered form.

Figure 3 schematically shows only the main portion of the swaging machine to which the split jig is applied in the prior art.

4 schematically shows only the main parts of an automatic bushing swaging machine according to the invention;

5 is a block diagram showing a control configuration of an automatic bushing swaging machine according to the present invention.

* Description of the symbols for the main parts of the drawings *

50: automatic bushing swaging machine 52: bushing

54: conveyor 56: supply outlet

58: pressure ejection unit 60: hydraulic control device

62: control unit 64: support frame

66: mounting hole 68: transfer belt

70: roller 72: roller shaft

74: bracket 76: lateral movement cylinder

78: piston 80: lateral movement rod

82: supply clamp 84: discharge clamp

86: first clamp cylinder 88: first piston

90: first actuator 92: first tongs

94: second clamp cylinder portion 96: second piston

98: second actuator 100: second clip unit

102: outer pipe 106: tapered ball

108: pressure fixing member 110: pressure space

112: divided jig 114: locking jaw

116: ejector cylinder 118: piston

120: bushing guide jig 122: ejector part

124: pressure cylinder member 128: push frame

130: main cylinder

The present invention for realizing this, a conveyor for conveying the bushing, horizontal movement cylinders installed to operate the left, right, forward and backward by the signal of the control unit on the upper end of the support frame to facilitate the supply and withdrawal of the bushing on the upper portion of the conveyor And a transverse rod arranged laterally on the piston of the transverse cylinder portion, a supply clamp provided on the side of the transverse cylinder at the same vertical line as the lower conveyor, and a pressurized ejection portion spaced apart from the supply clamp. And a supply discharge part having a discharge clamp installed on the same vertical line as that of the pump, and pressurizing the outer pipe of the bushing supplied by the supply discharge part, and pressurizing and fixing the taper hole on the upper plate of the support frame. A fixed jig and a split jig which is formed to be coupled to the tapered hole in a lower side of the pressure fixing member and is installed to form a pressurized space, An ejector part formed by forming a bushing guide jig at the tip of the piston of the ejector cylinder to take out the pressurizing space under the divided jig, and an ejector part including the ejector part to push the divided jig upwards to be combined with the pressure fixing member. And a control unit for electrically controlling the hydraulic control device to supply, pressurize, and take out the bushing by the conveyor, the supply discharge unit, and the pressure extraction unit. To provide a bushing swaging machine.

The conveyor has a conveying belt arranged at a predetermined length while forming a mounting hole to supply the bushing in an upright state on one side of the support frame, a roller arranged to support the conveying belt at a predetermined interval, and the roller on the support frame. The present invention provides an automatic bushing swaging machine including a bracket on which each roller shaft is assembled.

The supply clamp may include a first clamp cylinder portion which is lifted up and down by operation of the hydraulic control device by an electrical signal of the controller, a first actuator installed to be operated by a signal of the controller at the first piston tip of the first clamp cylinder portion, An automatic bushing swaging machine comprising a first tong portion which is interlocked by the first actuator to be installed to clamp a bushing on a conveyor.

The discharge clamp may include a second clamp cylinder portion which is lifted up and down by operation of the hydraulic control device by an electrical signal of the controller, a second actuator installed to be operated by the signal of the controller at the second piston tip of the second clamp cylinder portion, An automatic bushing swaging machine comprising a second tong portion which is interlocked by the second actuator and installed to clamp the bushing on the conveyor.

The pressurized cylinder member has a push frame which is integrally installed on the bottom of the base where the split type jig is assembled while the ejector cylinder is built in, and the main frame is installed to transmit the low stroke actuation force to the hydraulic control device operated by the control signal. An automatic bushing swaging machine composed of a cylinder part is provided.

In the present invention, when the injection-vulcanized bushing is transported along the conveyor to the supply position, the supply clamp of the supply discharge means is lowered by the control unit and the hydraulic control unit to pick up the bushing on the conveyor.

At this time, the discharge clamp on one side picks up the bushing on the bushing guide fixture of the pressurized ejection part and moves horizontally while the bushing is placed in the bushing guide fixture by the supply clamp, and the bushing of the discharge clamp is collected on one side of the swaging machine. The box will be filled.

When the supply discharge of the bushing by the supply clamp and the discharge clamp is completed, the bushing is returned to the pressurized space portion of the divided jig by descending the bushing guide jig into which the bushing is inserted by the ejector unit under the control of the control unit and the hydraulic control unit. It is enshrined.

Then, as the divided jig is raised by the operation of the main cylinder part of the pressure extracting part and coupled to the pressure fixing member, the outer pipe outer diameter of the bushing in the pressurizing space is reduced to change the characteristics of the dustproof rubber to increase durability.

Meanwhile, when the outer pipe of the bushing is reduced, the divided jig is lowered by the operation of the pressurized cylinder member and is automatically opened by the elastic member.In this case, when the bushing guide jig of the ejector portion is raised to raise the bushing, the supply discharge means Discharge clamp is lowered to pick up the bushing.

At this time, the supply clamp of one side is in a state of picking up the bushing transferred to the conveyor.

Therefore, when the bushing is raised by the ejector part, the discharge and supply of the bushing are automatically made by the horizontal movement of the supply clamp and the discharge clamp of the supply discharge means.

In other words, the automatic bushing swaging machine does not require the use of oil, and the automatic supply of the bushing greatly reduces the cycle time and the miniaturization of the equipment, thereby making the bushing with increased durability, thereby increasing the reliability of the product.

In addition, the main cylinder part of the pressurized ejection part is a low stroke dimensional adjustment cylinder that can be commonly used for small to large bushings produced in vulcanizers, and precise dimensions can be adjusted to provide products with stable swaging dimensions. It becomes possible to manufacture.

In addition, the miniaturization of the automatic bushing swaging machine enables in-line swaging to improve productivity and quality.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the present invention will be described in more detail.

4 is a view showing an automatic bushing swaging machine according to the present invention, Figure 5 is a block diagram showing a control configuration of the automatic bushing swaging machine according to the present invention.

The automatic bushing swaging machine 50 is composed of a conveyor 54 for conveying a bushing 52, a supply discharge part 56, a pressure ejection part 58, a hydraulic control device 60, a control unit 62, have.

The conveyor 54 is for conveying the bushing 52 in an upright state by the usual conveying means.

The conveyor 54 arranges the conveyance belt 68 at a predetermined length while forming the mounting hole 66 to supply the bushing 52 to one side of the support frame 64 in an upright state, and the conveyance belt 68 The roller 70 is arrange | positioned so that it may support at spaced intervals.

And each roller shaft 72 is attached by the bracket 74 so that the said roller 70 may be installed on the support frame 64. As shown in FIG.

The supply discharge part 56 is provided as a supply discharge means so that the upper side of the support frame 64 can move transversely to supply and take out the bushing 52 in the upper part of the conveyor 54.

The supply discharge portion 56 is provided with a horizontal cylinder portion 76 to operate by the signal of the control unit 62 on the upper support frame 64 on the same line of the conveyor 54 and the pressure extraction unit 58, The horizontal movement rod 80 is arrange | positioned laterally in the piston 78 of this horizontal movement cylinder part 76. As shown in FIG.

And the supply clamp 82 is installed on the same vertical line with the lower conveyor 54 on the side surface of the said lateral movement rod 80, and is spaced apart from this supply clamp 82 and is the same perpendicular to the pressure take-out part 58 A discharge clamp 84 is disposed on the ship.

The supply clamp 82 is installed so that the lifting operation of the first clamp cylinder 86 is made by the normal hydraulic control device 60 by the electrical signal of the control unit 62, the first clamp cylinder A normal first actuator 90 is provided at the tip of the first piston 88 of the unit 86 to operate by the signal of the control unit 62.

In addition, the first actuator 90 is configured to interlock by the first actuator 90 to clamp the bushing 52 on the conveyor 54.

In addition, the discharge clamp 84 is spaced apart from the supply clamp 82 at regular intervals to install the second clamp cylinder portion 94 to move up and down by the operation of the hydraulic control device 60 by the electrical signal of the control unit 62. Doing.

A normal second actuator 98 is provided at the tip of the second piston 96 of the second clamp cylinder portion 94 so as to be operated by a signal of the control unit 62. The second actuator 98 The second clip unit 100 is provided to clamp the bushing 52 on the conveyor 54 in conjunction with each other.

The pressure extraction unit 58 is configured to press the outer pipe 102 of the bushing 52 supplied by the supply discharge unit 56 to the pressure extraction unit and then to take out the pressure extraction unit 58.

The pressure extracting unit 58 is fixed to the pressure fixing member 108 while the taper hole 106 is formed on the upper plate 104 of the support frame 64. The taper hole is provided below the pressure fixing member 108. The pressurizing space 110 is formed in the divided jig 112 while being disposed on the vertical line 106 and coupled to each other.

In the pressurized space 110, a bushing 52 is formed so that the latching jaw 114 is settled.

In addition, the ejector unit 122 having the bushing guide jig 120 formed at the tip of the piston 118 of the ejector cylinder 116 to be taken out through the pressurized space 110 under the divided jig 112. The pressure cylinder member 124 is formed to include the ejector unit 122 and to push the split jig 112 upward to engage the pressure fixing member 108.

The pressure cylinder member 124 has a push frame 128 integrally installed on the bottom surface of the base 126 on which the divided jig 112 is assembled while the ejector cylinder 116 is built-in. The main cylinder part 130 is installed in the hydraulic control device 60 acting as a signal of the control unit 62 to transmit a low stroke operating force.

The controller 62 electrically controls the hydraulic controller 60 to supply, pressurize, and eject the bushing by the conveyor 52, the supply discharge unit 56, and the pressure ejection unit 58 to automatically switch the bushing. The machine 50 is driven and controlled.

Referring to the operation of the present invention made as described above, when the injection-vulcanized bushing 52 is transported along the conveyor 54 to the supply position (S100) is supplied by the control unit 62 and the hydraulic control device 60 The supply clamp 82 of the discharge portion 56 is operated by the first clamp cylinder portion 86 to lower the first tong portion 92 provided at the tip of the first piston 88 to lower the bushing 52 on the conveyor. 1 is picked up by the operation of the actuator (90).

At this time, the discharge clamp 84 on one side of the second actuator by the lowering of the bushing 52 on the bushing guide jig 120 of the pressure extracting part 58 to the second piston 96 of the second clamp cylinder 94. By the operation of the 98, the second tongs part 100 is picked up and moved horizontally while the bushing 52 is placed in the bushing guide fixture 120 by the supply clamp 82, and the discharge clamp The bushing of 84 is filled in the collection box on one side of the swaging machine.

When the supply discharge of the bushing 52 by the supply clamp 82 and the discharge clamp 84 of the supply discharge unit 82 is completed, it is returned, the ejector unit under the control of the control unit 62 and the hydraulic control device 60 By the lowering of the bushing guide jig 120 in which the bushing 52 is inserted by the 122, the bushing 52 is placed in the latching jaw 114 of the pressurized space 110 of the divided jig 112. S300)

Thereafter, the divided stroke 112 is raised by the operation of the low stroke dimension-adjustable main cylinder 130 of the pressure extracting member 58 and the pressure cylinder member 124 to be coupled to the taper hole 106 of the pressure fixing member 108. As the outer pipe 102 of the bushing 52 in the pressurizing space 110 is reduced in diameter (S400), thereby increasing the durability by changing the characteristics of the anti-vibration rubber.

On the other hand, when the outer diameter of the outer pipe 102 of the bushing 52 is reduced, the lowering of the divided jig 112 is performed by the operation of the main cylinder 130 of the pressure cylinder member 124, and is automatically operated by the elastic member S. When the bushing guide jig 120 is raised by the ejector cylinder 116 of the ejector unit 122 to raise the bushing 52, the discharge clamp 84 of the supply discharge unit 56 is lowered. To pick up the bushing 52. (S500)

At this time, the supply clamp 82 of one side is in a state of picking up the bushing 52 transferred to the conveyor 54.

Therefore, when the bushing 52 is raised by the bushing guide jig 120 of the ejector unit 122, the supply clamp is moved by the lateral movement cylinder 76 of the supply discharge portion 56 in the lateral movement of the lateral movement rod 80. The discharge and supply of the bushing 52 by the 82 and the discharge clamp 84 is automatically made. (S600)

That is, the automatic bushing swaging machine 50 does not require the use of oil, and by automatically supplying the bushing 52, the cycle time can be greatly shortened and the equipment can be miniaturized to produce and manufacture the bushing 52 having increased durability. It will increase the reliability of.

In addition, the main cylinder portion 130 of the pressure ejection portion 58 can be commonly applied to the bushings from the small to large sizes produced in the vulcanizer by the low stroke dimensional adjustment cylinder, and can also precisely adjust the dimensions. It is thus possible to manufacture products with stable swaging dimensions.

In addition, the miniaturization of the automatic bushing swaging machine enables in-line swaging to improve productivity and quality.

By using a split jig and automating, it is possible to reduce costs and improve productivity.

Without the use of oil, adopting the split swaging method to prevent the breakage of the adhesive, the automatic feeding and taking-out device is installed, and the cycle time is greatly shortened, and the equipment is downsized. It can produce finished products, which can significantly increase productivity and quality.

Claims (6)

Conveyor for conveying bushings, The horizontal cylinder is installed horizontally on the piston of the horizontal cylinder, and the horizontal cylinder is installed in the upper portion of the conveyor in order to supply and withdraw the bushing to the left and right by the signal of the control unit at the upper end of the support frame. Supply discharge with / with a transverse rod, a supply clamp installed on the side of the transverse rod on the same vertical line as the lower conveyor, and a discharge clamp spaced apart from the supply clamp and installed on the same vertical line as the pressure ejection unit. Wealth, A pressure fixing member which is fixedly installed while pressing the outer pipe of the bushing supplied by the supply discharge part to form a taper hole on the upper plate of the support frame, and is disposed on a vertical line with the taper hole below the pressure fixing member. And a split type jig which is formed to be coupled to each other and forms a pressurized space part, an ejector part which is formed by forming a bushing guide jig at the piston tip of the ejector cylinder to be taken out through the pressurized space part below the split type jig, and an ejector part. And a pressure ejection unit having a pressure cylinder member installed to be pushed upwards and divided with the pressure fixing member. And a control unit for electrically controlling the hydraulic control device to supply, pressurize, and take out the bushing by the conveyor, the supply discharge unit, and the pressure extracting unit. delete 2. The supply clamp according to claim 1, wherein the supply clamp is operated by a signal of a control part at a first clamp cylinder part which is lifted up and down by operation of an oil pressure control device by an electrical signal of the control part, and a first piston of the first clamp cylinder part. An automatic bushing swaging machine, comprising: a first actuator provided; and a first tong portion for interlocking by the first actuator to clamp the bushing on the conveyor. 2. The discharge clamp according to claim 1, wherein the discharge clamp is operated by a signal of a control part at a second clamp cylinder part which is lifted up and down by operation of a hydraulic control device by an electrical signal of the control part, and at the second piston tip of the second clamp cylinder part. An automatic bushing swaging machine, comprising: a second actuator provided; and a second tong portion installed to clamp the bushing on the conveyor by interlocking with the second actuator. delete 2. The pressure cylinder member of claim 1, wherein the pressure cylinder member includes a push frame integrally mounted on the bottom of the base on which the divided jig is assembled while the ejector cylinder is incorporated, and a low stroke operating force on the hydraulic control device operating as a signal from the controller. Automatic bushing swaging machine, characterized in that consisting of the main cylinder is installed to deliver.