KR20020074364A - Device to reproduce constant velocity joint of automobile and method thereof - Google Patents

Abstract

PURPOSE: A uniform velocity joint reusing apparatus for a vehicle and a method are respectively provided to reduce a changing cost of a uniform velocity joint by applying a ball bearing to a used uniform velocity joint. CONSTITUTION: A clamping part has a combining groove(101) which is formed at a front surface of the clamping part. A head of a uniform velocity joint is inserted into the combining groove(101) to be fixed by rotating a fixing handle(118) formed at a rear surface of the clamping part. The first guide(119) and the second guide(120) are formed at a lower portion of the clamping part for guiding the uniform velocity joint fixed by the combining groove(101) and the fixing handle(118) in a forward direction and a reward direction. The moving of the uniform velocity joint in the forward and reward directions is prevented by a fixing lever(102) formed at a side portion of the clamping part. A grinder(104) installed at an end portion of a shaft of a motor(103) grinds a groove of the uniform velocity joint.

Description

Device and reproduce constant velocity joint of automobile and method

The present invention relates to an apparatus and a method for regenerating a constant velocity joint for an automobile, and more particularly, to regenerate and reuse a constant velocity joint in a constant velocity joint that transmits rotational force of a drive shaft to a driving wheel without discarding it when damage occurs due to a concentrated load.

As is well known, the constant velocity joint is applied to the drive shaft of a front-wheel drive vehicle, and it drives the front wheel quickly without rotation imbalance even if the power transmission angle is changed by the steering of the front wheel. It is characterized by low noise.

1 is a cross-sectional view illustrating a general state of a constant velocity joint, in which a plurality of guide grooves 2 are formed inside the constant velocity joint 1, and the end of the drive shaft 3 is formed in the guide groove 2. A ball bearing 4 is interposed between the drive shaft 3 and the guide groove 2 so that the driving wheel (connected to the outside of the constant velocity joint and not shown in the drawing) rubs against the road surface, thereby causing vibration and torsion. Even if transmitted, the power can be transmitted in an inclined state within a predetermined angle so that the driving wheel can always rotate constantly without being affected by such vibration and torsion.

However, as the vehicle is operated for a long time as shown in FIG. 2, the guide groove 2 is deteriorated due to the friction of the metal-to-metal between the ball bearing 4 and the guide groove 2 of the constant velocity joint 1, or in an unpaved road or a mountain. By driving a car, the constant velocity joint (1) is subjected to the unbalanced load, and the ball bearing (4) may cause the inside of the guide groove (2) of the constant velocity joint (1) to be damaged, and in this case, a damage portion (5) may occur. Since the transmission of the rotational force by the drive shaft 3 is not smooth, the constant velocity joint 1 needs to be replaced. The constant velocity joint 1 is expensive because it costs 7 to 80,000 won per piece. If the replaced constant velocity joint 1 is discarded as it is, there was a very inefficient problem in terms of resource recycling.

The present invention has been devised in view of this point, by collecting the constant velocity joint that is deteriorated or damaged by replacing the guide groove inside the guide groove precisely carved, by applying a ball bearing according to the increased size can be reused The purpose of the present invention is to provide a device and method for regenerating a constant velocity joint for automobiles, which reduces the cost of replacing joints and improves the recycling of resources.

1 is a state diagram of a typical constant velocity joint.

2 is a state diagram when damage occurs to the constant velocity joint.

3 is a block diagram of a constant velocity joint reproducing apparatus according to the present invention.

Figure 4 is an explanatory view of the operation of the abrasive stone front and rear moving part according to the present invention.

5 is a mounting state diagram of the dial gauge according to the present invention.

6 is a detailed view of the constant velocity joint cutting unit according to the present invention.

7 is an explanatory view of the constant velocity joint left and right rotating part according to the present invention.

8 is an explanatory view of the constant velocity joint axial rotation in accordance with the present invention.

*** Explanation of symbols for the main parts of the drawing ***

1: Constant velocity joint 101: Tightening groove

102: fixed lever 103: the first motor

104: abrasive stone 105: coolant spray

106: screw 107: grinding stone left and right adjustment handle

108: second motor 109: first inclined jaw

110: first ratchet 111: constant velocity joint rotation lever

112: second inclination jaw 113: the rotating plate

114: second ratchet 115: rotation

116: protrusion 117: abrasive stone holder

118: fixing handle 119: the first guide

120: second guide 121,122: adjustment knob

123: third guide 124: screw adjustment handle

126: first dial gauge 127: second dial gauge

Hereinafter, the present invention will be embodied according to the examples presented.

The constant velocity joint regeneration device for automobiles according to the present invention is largely shown in FIG. It consists of a directional rotation part, the constant velocity joint clamping portion inserts the spline and the screw of the constant velocity joint (1) to the fastening groove 101 formed on the front side with the head, and rotates the fixing handle 118 formed on the rear side of the inner clamp ( It is configured to fix the position of the inserted constant velocity joint 1 by tightening the general structure (not shown), and the constant velocity joint position adjusting part is formed on the lower surface of the constant velocity joint clamping part in the forward and backward direction with the first guide 119 Two guides 120 are formed in sequence, and the first and second guides 119 and 120 are gear-engaged with adjustment knobs 121 and 122, respectively. While forming a protruding outwardly to rotate the fixed constant velocity joint 1 back and forth or left and right by inserting and rotating a tool to each adjustment knob (121) 122, the fixed lever 102 formed on the side of the constant velocity joint cranking portion The fixed velocity joint clamp is fixed to the position of the constant velocity joint clamping part, and the constant velocity joint cutting part is disposed on the shaft of the first motor 103 so as to cut the guide groove 2 of the fixed constant velocity joint 1. And rotates the cooling water injector 105 in the same direction as the abrasive stone 104 and sprays the cooling water in the direction of the tip end portion of the abrasive stone 104. Accordingly, it is automatically rotated forward or reverse to move the abrasive stone 104 forward or upward so as to be positioned inside the space portion of the constant velocity joint 1 along the third guide 123 formed in the front-rear direction. The screw 106 for reversing to be released and the screw adjusting handle 124 for manually rotating the screw 106 to adjust the initial position of the abrasive stone 104, and the left and right moving parts of the abrasive stone 104 is a constant velocity joint (1) the abrasive stone left and right adjustment handles 107, which move left and right along the fourth guide (not shown) formed on the lower surface in the constant velocity joint cutting portion so as to be in contact with the inner wall of the entire surface, and the abrasive stone left and right adjustment handles ( The first dial gauge 126 positioned in conjunction with 107 to display the adjustment amount of the left and right adjustment handle 107 to the outside to visually check and adjust the polishing value of the guide groove 2 of the constant velocity joint 1. 7, the constant velocity joint left and right rotation parts are connected to the guide groove 2 of the constant velocity joint 1 while repeatedly rotating the constant velocity joint clamping part at a predetermined angle by the second motor 108 below. The abrasive stone 104 is contacted to cut the guide groove 2 of the constant velocity joint 1 by the abrasive stone 104, and the constant velocity joint axial rotation part is integrally formed at the rear of the constant velocity joint clamping part. An outer case of a ratchet 110 (hereinafter referred to as a first ratchet) forming an inclined jaw 109 (hereinafter referred to as a first inclined jaw) having the same number as the guide groove 2 and hanging the first inclined jaw 109. To the first ratchet 110 by rotating the first ratchet 110 freely when rotating upward and rotating together with the constant velocity joint clamping part when rotating downward. Since the fixed constant velocity joint 1 is rotated in the axial direction by only the interval of the guide groove 2 by providing the constant velocity joint rotation lever 111 to be caught by the jaw 109, all the guide grooves of the constant velocity joint 1 ( 2) is configured to be cut the same, As shown in FIG. 8, the fast joint axial rotation part has a plurality of second inclined jaws 112 formed in the same direction as the first inclined jaw 109, and the constant velocity joint rotating lever 111 is formed on one outer side thereof. Coaxially coupling the combined rotating plate 113 with the constant velocity joint clamping portion, the second ratchet 114 having the same direction as the first ratchet 110 to the second inclined jaw 112 is elastically at the rear of the constant velocity joint clamping portion Fixed to, but extending from the first ratchet 110 to the rotation 115 and in contact with the rotation 115 in accordance with the rotation to the lifting plate 113 to lift the first ratchet 110, an arc-shaped protrusion ( 116 can be formed by connecting.

At this time, as shown in FIG. 5, the abrasive stone holder 117 is fixed to the shaft of the first motor 103, and the abrasive stone 104 is selectively inserted into the abrasive stone holder 117 so that the abrasive stone 104 is a constant velocity joint 1. It can be configured to be used according to the size according to the size of the guide groove (2) of the, as shown in Figure 6 before the installation of the abrasive stone 104 is installed in advance in the position of the abrasive stone 104 on the inner surface of the constant velocity joint (1) It is further provided with a second dial gauge 127 to indicate that the overall contact can be adjusted to the outside.

The constant velocity joint regeneration device for automobiles according to the present invention configured as described above, first, the guide groove 2 of the constant velocity joint 1 is collected or deteriorated and inserted into the coupling groove 101 of the constant velocity joint clamping part, and then the rear surface The fixing handle 118 is rotated to be fixed by the clamp therein, and the abrasive stone 104 is fixed to the abrasive stone holder 117 to prepare.

At this time, in the present invention, since the constant velocity joint must be cut deeper than the original guide groove, whether or not the abrasive stone 104 comes into contact with the inner surface of the fixed constant velocity joint 1 becomes a key to the implementation thereof. Before installation of the abrasive stone 104, the second dial gauge 127 is inserted at the installation position and the second motor 118 is driven to check whether the second dial gauge 127 is in full contact with the inner surface of the constant velocity joint 1. Whether or not the front end of the second dial gauge 127 is completely in contact with the inner surface of the constant velocity joint 1, the scale of the second dial gauge 127 will be located above zero. No abnormal adjustment is necessary, but if the tip portion of the second dial gauge 127 is not completely in contact with the inner surface of the constant velocity joint 1, the scale of the second dial gauge 127 will be located at 0, Can easily confirm, that case must adjust its position through the adjusting device, which will be described later, when the adjustment operation is completed may be provided a grinding stone (104), remove the second dial gauge 127 is in.

The adjustment operation according to the present invention is necessary to set the initial position of the constant velocity joint 1 or the abrasive stone 104, and can be roughly divided into the constant velocity joint 1 adjustment operation and the grinding stone 104 adjustment operation.

Among these, the constant velocity joint (1) adjustment is performed by moving the constant velocity joint clamping portion back and forth or left and right by inserting and rotating a tool in the adjustment knobs 121 and 122 of the constant velocity joint position adjusting portion. As described above, the constant velocity joint clamping is performed. On the lower surface, the first guide 119 in the front-rear direction and the second guide 120 in the left-right direction are sequentially formed, and the adjustment knobs 121 and 122 are provided in the first guide 119 and the second guide 120. Are each geared and protruded outwards to rotate the tool into each of the adjustment knobs 121 and 122 to rotate the constant velocity joint clamping portion along the respective guides 119 and 120 to be adjusted as desired. After adjusting the constant velocity joint clamping portion as desired, the fixed velocity lever 102 formed on the side surface of the constant velocity joint clamping portion may be tightened to fix the constant velocity joint clamping portion.

Adjusting the abrasive stone 104 is to adjust the position of the abrasive stone 104 in the front and rear or left and right directions so that the abrasive stone 104 is in effective contact with the inner surface of the constant velocity joint 1 to achieve the desired cutting effect. As such, when turning the screw adjustment handle 124 of the abrasive stone forward and backward movement portion as shown in FIG. 4 and the screw portion of the lower portion of the constant velocity joint cutting portion is in contact with it, the entire constant velocity joint cutting portion may be adjusted in the front and rear directions along the third guide 123. The abrasive stone 104 can be positioned in the inner space of the constant velocity joint 1, and when the abrasive stone left / right adjusting handle 107 of the abrasive stone left / right moving part is turned, the constant velocity joint cutting part and the entire control panel move along the fourth guide. The first dial gauge 127 is connected to the abrasive stone left and right adjustment handle 107 to allow the abrasive stone 104 to contact the inner surface of the guide groove 2 of the constant velocity clamp 1. Since the scale of the first dial gauge 127 changes according to the rotational speed of the abrasive stone left / right adjusting handle 107, it is displayed to the outside. Therefore, the abrasive stone left / right adjusting handle 107 may be adjusted by a desired cutting depth.

After all adjustments are completed, the constant velocity joint cutting operation will be performed afterwards. The screw 106 of the abrasive stone front and rear movement unit is automatically rotated under the control of the controller according to the initial setting while advancing the constant velocity joint cutting portion to equalize the abrasive stone 104. It is positioned in the inner space of the constant velocity joint 1 fixed to the joint clamping part, and at the same time, the first motor 103 of the constant velocity joint cutting part rotates to rotate the abrasive stone 104, 2 by driving the motor 108 to rotate the fixed constant velocity joint (1) left and right at a predetermined angle so that the abrasive groove 104 and the guide groove (2) of the constant velocity joint (1) contact the guide groove (2) It will be cut by the initial set depth.

This operation relationship is shown in FIG.

By the way, since the constant velocity joint (1) is usually formed in six guide grooves 2 at equal intervals, each guide groove (2) should be processed equally, and for this purpose, in the present invention, the constant velocity joint axial rotation part is configured. As shown in FIG. 8, when the first guide groove 2 is completely machined, the constant velocity joint rotation lever 111 is rotated upwards so that the second inclined jaw 112 formed on the inner circumferential surface thereof with respect to the second ratchet 114. While the free rotation, the protrusion 116 of the rotating plate 113 is in contact with the rotation interval 115 of the first ratchet 110 to lift the first ratchet 110 upwards, so that the constant velocity joint clamping portion becomes free. In this state, when the constant velocity joint rotating lever 111 is lowered again, the rotating plate 113 rotates and the second inclined jaw 112 is caught by the second ratchet 114 to rotate the constant velocity joint clamping part as a whole. Of rotation 115 and protrusion 116 during rotation The first ratchet 110 is rotated in contact with the surface between the first inclined jaws 109 by the contact between the first ratchet 110 and the first ratchet 110 is returned to its original position. The position of the guide groove 2 and the abrasive stone 104 can be matched to continue cutting the guide groove (2), repeating this process six times depending on the number of the guide groove (2) all the guide groove (2) It is possible to cut uniformly.

In this case, when the constant velocity joint rotation lever 111 is excessively rotated, the constant velocity joint rotation lever 111 may be firstly moved between the inclined jaws 109 and 112 and the ratchet 110 and 114. It is preferable to have a stopper for stopping the rotation only when the interval between the inclined jaw (109).

Subsequently, when all the above processes are completed, each motor 103, 108 stops and at the same time, the screw 106 of the back and forth moving part of the abrasive stone automatically rotates backward to reverse the constant velocity joint cutting part, and release the fixing handle 118. The constant velocity joint 1 may be taken out from the machine and reused. The regenerated constant velocity joint has a larger ball bearing corresponding to the cut depth since the guide groove 2 is deeper than the guide groove in the initial state. It can be used between the drive shaft.

In addition, the regenerated constant velocity joint is continuously cut in the guide groove 2 during the regeneration process, and the thickness thereof will gradually decrease, so the regenerated constant velocity joint is disposed of after the regeneration of the regenerated constant velocity joint two or three times in consideration of its rigidity. This would be desirable.

As described above, in the present invention, the guide grooves are deteriorated or the concave joints are collected so that the guide grooves can be regenerated and reused by cutting the guide grooves deeper than the original depth so that the expensive constant velocity joints can be used two or three times. The above can be used again, so that the resources can be recycled, and the replacement repair cost can be reduced.

Claims (5)

One side is formed with a spline and a screw is connected to the drive wheel, the other side is formed with a hemispherical space portion and a plurality of guide grooves (2) are formed on the inner surface of which the end of the drive shaft (3) is a ball bearing (4) In the constant velocity joint for automobile inserted Insert the spline and screw of the constant velocity joint 1 into the fastening groove 101 formed on the front side with the head, and rotate the fixing handle 118 formed on the rear side to tighten the inner clamp to insert the constant velocity joint 1. Constant velocity joint clamping portion for fixing the position of the; The first guide 119 in the front-rear direction and the second guide 120 in the left-right direction are sequentially formed on the bottom surface of the constant velocity joint clamping part, and the first guide 119 and the second guide 120 are adjusted. The handles 121 and 122 are formed to protrude outwards while being geared to each other to adjust the fixed constant velocity joint 1 back and forth or left and right by inserting and rotating a tool in each of the adjustment knobs 121 and 122. A constant velocity joint position adjusting unit for tightening the fixing lever 102 formed on the side surface of the constant velocity joint clamping part to fix a position of the constant velocity joint clamping part; Cooling water injector 105 in the same direction as the abrasive stone 104 while rotating the abrasive stone 104 to the shaft of the first motor 103 to cut the guide groove (2) of the fixed constant velocity joint (1) A constant velocity joint cutting unit configured to spray cooling water toward the distal end of the abrasive stone 104 by speaking; In order to automatically rotate in the forward or reverse direction according to the command of the controller, the abrasive stone 104 is advanced or retracted along the third guide 123 formed in the front-back direction so as to be located inside the space portion of the constant velocity joint 1. Polishing stones before and after the moving portion made of a screw 106 and a screw adjustment handle 124 for manually rotating the screw 106 to adjust the initial position of the abrasive stone 104; A grinding stone left and right adjusting handle 107 which moves the constant velocity joint cutting part left and right along a fourth guide formed in the left and right directions so that the abrasive stone 104 is in contact with the inner wall of the constant velocity joint 1 as a whole; Positioned in conjunction with the abrasive stone left and right adjustment handle 107 to display the adjustment amount of the abrasive stone left and right adjustment handle 107 to the outside to visually check the adjustment value of the guide groove (2) of the constant velocity joint (1) Polishing stone left and right moving portion of the first dial gauge 126; The constant velocity joint (1) is brought into contact with the guide groove 2 and the abrasive stone 104 while repeatedly rotating the constant velocity joint clamping part at a predetermined angle by the second motor 108 below. Constant velocity joint left and right rotating part for cutting the guide groove (2) of the; And The ratchet 110 integrally formed at the rear end of the constant velocity joint clamping part to form inclined jaws 109 having the same number as the guide grooves 2 of the constant velocity joint 1, and to hang the inclined jaws 109. And elastically fixed to the outer case, the ratchet 110 is rotated while freely rotating when rotated upward, and the ratchet 110 is returned to its original position while being rotated together with the constant velocity joint clamping portion when lowered downward. A constant velocity joint regenerator for an automobile comprising a constant velocity joint axial rotation part made of a constant velocity joint rotating lever (111) to be caught by an inclined jaw (109). The method of claim 1, The abrasive stone holder 117 is fixed to the shaft of the first motor 103, and the abrasive stone 104 is selectively fitted to the abrasive stone holder 117 so that the abrasive stone 104 of the constant velocity joint 1 is fixed. A constant velocity joint reproducing apparatus for a vehicle, characterized in that it can be selected and used according to the size according to the size of the guide groove (2). The method of claim 1, The second dial gauge 127 is installed in advance before the installation of the abrasive stone 104 to indicate whether the abrasive stone 104 can come into full contact with the inner surface of the constant velocity joint 1 and adjust it to the outside. Automotive constant velocity joint regeneration device further comprising. One side is formed with a spline and a screw is connected to the drive wheel, the other side is formed with a hemispherical space portion and a plurality of guide grooves (2) are formed on the inner surface of which the end of the drive shaft (3) is a ball bearing (4) In the constant velocity joint for automobile inserted Collecting the constant velocity joint (1) in which the guide groove (2) is deteriorated or damaged and replaced; Preparing the fixed constant velocity joint by inserting the fixed constant velocity joint into the fastening groove 101 of the constant velocity joint clamping part and simultaneously fixing and polishing the abrasive stone 104 into the abrasive stone holder 117; Adjusting the initial position of the fixed constant velocity joint 1 by operating the respective adjustment knobs 121 and 122 of the constant velocity joint position adjusting portion, the screw adjusting handle 124 of the abrasive grain front and rear movement portions and the grinding stone left and right adjusting handles of the polished stone left and right movement portions Manipulating 107 to adjust the initial position of the abrasive stone 104; While rotating the abrasive stone 104 of the constant velocity joint cutting part by the first motor 103, the constant velocity joint 1 is rotated by the first motor 103 to rotate the fixed constant velocity joint 1 at a predetermined angle by the lower second motor 108. Cutting the guide groove 2 deeper than the depth of the first guide groove by bringing the abrasive stone 104 into contact with the guide groove 2 by repeating rotation; Driving the constant velocity joint axial rotation part to uniformly cut all the guide grooves 2 of the constant velocity joint 1 by rotating the cut constant velocity joint 1 by each guide groove 2 in the axial direction; And And drawing out the constant velocity joint (1) cut by the guide groove (2) and reusing a ball bearing corresponding to the cut depth between the drive shaft (3). How to play a constant velocity joint. The method of claim 4, wherein Insert the second dial gauge 127 in the installation position of the abrasive stone 104 before installation and drive the second motor 108 so that the tip portion of the second dial gauge 127 is inside the constant velocity joint 1. Checking whether the surface is in overall contact with the surface, and rotating the abrasive stone left / right adjustment handle 107 while checking the first dial gauge 126 that is interlocked with the abrasive stone left / right adjustment handle 107. A method for regenerating a constant velocity joint for a vehicle, further comprising adjusting a cutting depth.