KR101383749B1 - Lift arm test apparatus and method for continuity variable valve lift apparatus - Google Patents

Abstract

The present invention relates to a second cam tester for a continuously variable valve lift apparatus and a test method thereof. The second cam tester includes a supply unit supplying a lift arm to a measuring position set in advance; a fixing unit fixing the lift arm to the measuring position; a measuring unit moving along the profile measuring surface of the lift arm fixed to the measuring position to measure a profile; and a control unit determining whether the lift arm is defective by comparing the value measured by the measuring unit and a reference value set in advance. Therefore, it is possible to precisely measure the profile of the lift arm applied to the continuously variable valve lift of an engine. [Reference numerals] (21) Supply unit; (22) Fixing Unit; (23) Measuring unit; (24) Discharge unit; (25) Display unit; (26) Control unit; (27) Foreign substance removing unit

Description

Second cam test device and test method for continuous variable valve lift device of engine {LIFT ARM TEST APPARATUS AND METHOD FOR CONTINUITY VARIABLE VALVE LIFT APPARATUS}

The present invention relates to a second cam test apparatus and test method for a continuously variable valve lift apparatus of an engine, and more specifically, a second cam (hereinafter referred to as a 'lift arm') applied to a continuously variable valve lift apparatus of an engine. Lift arm test apparatus and test method for a continuously variable valve lift device of the engine for measuring the.

A valve mechanism applied to an automobile engine supplies a mixer to the combustion chamber and discharges the combustion gas according to the stroke of the engine.

In recent years, engine performance such as fuel consumption, torque, and output has been improved by optimizing the flow rate of the mixer and the discharge efficiency of the combustion gas by varying the valve opening rate and opening / closing timing according to the operation range of the engine, Variable valve mechanisms have been developed and applied to engines that can be improved and the amount of exhaust gas reduced.

Such a variable valve mechanism for an automobile engine includes a variable valve timing mechanism for varying the opening and closing timing of the valve, a variable valve lift mechanism for varying the opening amount of the valve, and a variable valve operating angle mechanism for changing the valve operating angle.

Among them, the variable valve lift mechanism is intended to improve the output and fuel economy in the high speed mode. The conventional variable valve lift mechanism is a rocker arm type, a pivot type, a tappet type, a bucket type, Method and so on.

The present applicant has proposed a technology relating to a continuously variable valve lifting device of an engine of a tappet type, as disclosed in Korean Patent Registration No. 10-1084739 (published on Nov. 22, 2011, hereinafter referred to as Patent Document 1) 10-1084741 (published on Nov. 22, 2011, hereinafter referred to as Patent Document 2), Korean Patent Publication No. 10-2012-0088363 (published on Aug. 8, 2012, hereinafter referred to as Patent Document 3 And the like.

On the other hand, the second cam (hereinafter referred to as a 'lift arm') applied to the continuously variable valve lift apparatus of the engine is a part that adjusts the lift amount of the valve according to the shape of the contour, and is an important part that influences the engine performance.

Therefore, there is a need for the development of a technology that can accurately measure the contour of the lift arm.

Korean Patent Registration No. 10-1084739 (Announcement on November 22, 2011) Korean Patent Registration No. 10-1084741 (Announcement on November 22, 2011) Korean Patent Publication No. 10-2012-0088363 (published on August 8, 2012)

The present invention is to solve the problems as described above, an object of the present invention is to provide a second variable valve lift device for the engine that can accurately measure the contour of the lift arm applied to the continuously variable valve lift device of the engine. It provides a cam test apparatus and a test method.

According to a feature of the present invention for achieving the above object, the present invention provides a supply unit for supplying a lift arm to a predetermined measuring position, a fixing portion for fixing the lift arm to the measuring position, a lift fixed to the measuring position It includes a measuring unit for measuring the contour while moving along the contour measurement surface of the arm and a control unit for determining whether or not defective by comparing the measured value measured by the measurement unit with a preset reference value.

The present invention further comprises a display unit for displaying the contour measurement value measured by the measuring unit and a determination result of whether the controller is a normal product, and a discharge unit for separating and discharging the lift arm determined as a defective product from the lift arm determined as a normal product. It may include.

The supply unit may include a conveying means for sequentially conveying the lift arm along a pair of rails installed on the base plate, and an input robot for feeding the lift arm conveyed by the conveying means into the measurement position.

The fixing part is a fixing member installed at the measuring position, the first and second air cylinders operated by the air pressure, the fixing jig for moving back and forth toward the fixing member by the operation of the first air cylinder and the second It may include a clamp for lifting and lowering by the operation of the air cylinder to secure the lift arm from the top.

The fixing unit further includes a position detecting sensor installed at one side of the fixing jig to detect the position of the fixing jig, and the control unit drives the first and second air cylinders according to the detection signal of the position detecting sensor. It is characterized by controlling.

The lift arm is provided with a shaft installation hole in which the control shaft is installed and a link piece assembly hole in which the link piece is hingeably rotatable, and the fixing member has an insertion protrusion inserted into the shaft installation hole, and the fixing jig includes An insertion protrusion inserted into the link piece assembly hole may be formed.

The measuring unit is a servo motor for generating a rotational force, a mobile unit linearly reciprocating in the left and right direction by the rotational force of the servomotor, and is installed on one surface of the mobile unit and the tip of the lift arm is in contact with the measuring surface of the lift arm to improve the contour. It may include a measuring sensor to measure.

The measuring sensor is characterized in that the contact displacement measuring sensor for measuring the displacement while moving along the contour measuring surface of the lift arm.

The discharge unit may include a transfer robot for transferring the finished product, a normal product discharge unit for sequentially loading and discharging the normal product transported by the transfer robot, and a defective product discharger temporarily storing the defective product.

The apparatus may further include a foreign material removal unit configured to supply high pressure air to the lift arm fixed at the measurement position to remove foreign substances or dust from the contour measurement surface.

According to another feature of the invention, the present invention (a) supplying the lift arm to a predetermined measuring position using the supply, (b) operating the fixing portion to secure the lift arm supplied to the measuring position (c) measuring the contour by moving the measuring sensor in contact with the contour measuring surface of the lift arm; and (d) displaying the contour measurement measured in step (c) on the screen of the display unit. Include.

The present invention compares the contour measurement value measured in step (c) with a preset reference value to determine whether the product is normal or not; and (f) the lift arm determined as a defective product in step (e). The method may further include discharging the lift arm separately from the lift arm determined to be a normal product.

In the step (b), the fixing jig in which the insertion protrusion is inserted into the link piece assembly hole of the lift arm is moved to one side and fixed between the fixing member and the fixing jig in which the insertion protrusion is inserted into the shaft installation hole of the lift arm. And (b2) lowering the clamp at the top of the lift arm to fix the lift arm between the fixing member and the clamp.

In the step (b1), the measurement sensor may be installed perpendicular to the straight line connecting the center of the shaft installation hole and the link piece assembly hole of the lift arm.

The step (b) detects the position of the fixing jig moved in the step (b1) by using a position sensor installed on one side of the fixing jig, and when the fixing jig is moved to a preset position, the fixing jig And stopping the operation of the moving first air cylinder, and operating the second cylinder for operating the clamp.

Step (f) includes (f1) moving the lift arm 10 determined to be a defective product in step (e) to a defective product discharge container and temporarily storing it, and (f2) lifting arm 10 determined to be a normal product. It may include the step of discharging by sequentially loading by the discharge unit to move to a predetermined discharge position.

The present invention may further comprise the step of removing the dust or foreign matter on the contour measurement surface by injecting high-pressure air to the lift arm fixed to the measurement position by operating the foreign matter removal unit.

As described above, the present invention can measure the contour of the lift arm by moving the measurement sensor while the measurement sensor is in contact with the contour measurement surface of the lift arm.

Particularly, the present invention firmly fixes the center of the shaft mounting hole and the link piece assembling hole formed on the lift arm by using the fixing part so that the center of the shaft mounting hole and the link piece assembling hole is connected to the center of the shaft mounting hole and the link piece assembling hole. Accuracy can be improved by measuring a contour figure in the state installed so that it may become so.

In addition, the present invention has the effect of reducing the time required for the test operation of the lift arm by improving the workability, by rapidly testing a large amount of the lift arm by performing the automatic contour contour measurement process of the lift arm.

In addition, the present invention by using a foreign material removal unit to supply high-pressure air to the lift arm fixed to the measurement position to remove the foreign matter and dust on the contour measurement surface, the accuracy of the test results due to contamination of the lift arm is reduced Has the effect of preventing.

1 is a block diagram of a second cam test apparatus for a continuously variable valve lift apparatus of an engine according to a preferred embodiment of the present invention;
2 is a plan view of the second cam test apparatus shown in FIG.
3 is a schematic view showing a state of measuring the contour of the lift arm,
4 is a flowchart illustrating a test method of a second cam test apparatus for a continuously variable valve lift apparatus of an engine according to a preferred embodiment of the present invention.

Hereinafter, a second cam test apparatus and test method for a continuously variable valve lift apparatus of an engine according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a second cam test apparatus for a continuously variable valve lift apparatus of an engine according to a preferred embodiment of the present invention, FIG. 2 is a plan view of the second cam test apparatus shown in FIG. 1, and FIG. 3 is a lift arm. It is a schematic diagram which showed the state of measuring the contour of the.

Second cam test apparatus (hereinafter, abbreviated as 'second cam test apparatus') 20 for a continuously variable valve lift apparatus of an engine according to a preferred embodiment of the present invention, as shown in FIG. Supply unit 21 for supplying to the measuring position, the fixing unit 22 for fixing the lift arm, the measuring unit 23 and measuring unit for measuring the profile while moving along the contour measuring surface of the fixed lift arm (profile) And a controller 26 comparing the measured value measured at 23 with a preset reference value to determine whether there is a defect.

In addition, the second cam test apparatus 20 according to the preferred embodiment of the present invention determines that the display unit 25 displaying the contour measurement value measured by the measuring unit 23 and the lift arm determined as defective are normal. It may further include a discharge portion 24 for discharging separated from the lift arm.

On the other hand, the lift arm 10, as shown in Figure 3, the curved surface is formed to adjust the valve lift amount in contact with the upper end of the valve on one side.

The second cam test apparatus 20 according to the present embodiment measures the contour of the curved surface, hereinafter referred to as the contour measuring surface 11.

The lift arm 10 is formed with a shaft installation hole 12 in which a control shaft is installed and a link piece assembler 13 in which a link piece is hinge-rotatably assembled.

The supply part 21 is a part which supplies the lift arm 10 to the fixing member 35 of the fixing part 22 which will be demonstrated below sequentially, and lift arm 10 along a pair of rail provided on the base plate. It may include a feeding means (not shown) for sequentially transporting and an injection robot (not shown) for feeding the lift arm 10 transferred by the transport means to the measurement position.

The conveying means may include an air cylinder (not shown) operated by air pressure and a moving jig (not shown) moving along a pair of rails.

As shown in FIG. 2, the fixing part 22 includes a fixing member 35 installed at the measurement position, first and second air cylinders 30 and 33 operated by air pressure, and a first air cylinder 30. Clamp (34) to fix the lift arm (10) from the top by lifting and lowering operation by the operation of the fixing jig 31 and the second air cylinder 33 reciprocating forward and backward toward the fixing member 35 by the operation of ) May be included.

In addition, the fixing part 22 may further include a position detecting sensor 32 installed at one side of the fixing jig 31 to detect the position of the fixing jig 31.

An upper end of the fixing member 35 may have an insertion protrusion inserted into the shaft installation hole 12 formed in the lift arm 10.

In addition, an insertion protrusion inserted into the link piece assembly hole 13 formed in the lift arm 10 is formed at one upper end of the fixing jig 31.

Meanwhile, the fixing jig 31 moves away from the fixing member 35 by the operation of the first air cylinder 30 while the insertion protrusion is inserted into the link piece assembly hole 13 to firmly lift the lift arm 10. Can be fixed.

Here, the center of the shaft mounting hole 12 and the link piece assembly hole 13 of the lift arm 10 is located in a straight line.

The position detecting sensor 32 detects a moving position of the fixing jig 31 that moves to fix the lift arm 10.

Accordingly, the controller 26 checks whether the fixing jig 31 moves away from the fixing member 35 to the preset setting position based on the detection signal of the position detecting sensor 32.

Then, when the fixing jig 31 moves to the set position, the control unit 26 determines that the lift arm 10 is firmly fixed to the measurement position, and one surface of the lift arm 10, that is, shown in FIG. 3. The measuring unit 23 is controlled to measure the contour of the drawn contour degree measuring surface 11.

As shown in FIGS. 2 and 3, the measurement unit 23 is driven in the horizontal direction by the rotational force of the servo motor 40 and the servomotor 40 which are driven according to the control signal of the control unit 26 to generate the rotational force. The mobile unit 41 linearly reciprocates and includes a measuring sensor 42 installed on one surface of the mobile unit 41 and having a tip contacting the contour measuring surface 11 of the lift arm 10 to measure the contour. can do.

The measuring sensor 42 may be provided as a contact displacement measuring sensor such as a linear variable differential transformer measuring a displacement while moving along the contour measuring surface 11 of the lift arm 10.

Here, the measurement sensor 42 is installed to be perpendicular to the straight line extending the center of the shaft mounting hole 12 and the link piece assembly hole 13 of the lift arm 10, as shown in FIG.

The control unit 26 controls the operations of the supply unit 21, the fixing unit 22, the measuring unit 23, and the discharge unit 24, and controls the contour degree measurement value measured by the measuring unit 23 and the pre-stored reference value. The comparison is made to determine whether there is a defect.

As a result of the comparison, when the test target lift arm 10 is determined to be a defective product, the control unit 26 controls the discharge unit 24 to discharge the defective product separately from the normal product.

That is, the discharge unit 24 discharges the normal product to a preset normal product discharge position according to the control signal of the control unit 26, and discharges the defective product from the defective product discharge bin by distinguishing from the normal product.

The discharge part 24 is a transport robot (not shown) for transporting the finished product, a normal product discharge unit (not shown) for loading and discharging the normal product sequentially, and a defective product discharge for temporarily storing the defective product. It may include a box (not shown).

The display unit 25 may include a display panel (not shown) that displays a contour measurement value measured by the measuring unit 23 and a result of determining whether the controller 26 is defective or not on the screen.

Here, the contour measurement value, the minimum value and the maximum value may be displayed on the screen of the display unit 25.

As described above, the present invention can measure the contour of the lift arm by moving the measurement sensor in a state in which the measurement sensor is in contact with the contour measurement surface of the lift arm.

Particularly, the present invention firmly fixes the center of the shaft mounting hole and the link piece assembling hole formed on the lift arm by using the fixing part so that the center of the shaft mounting hole and the link piece assembling hole is connected to the center of the shaft mounting hole and the link piece assembling hole. Accuracy can be improved by measuring a contour figure in the state installed so that it may become so.

In addition, the present invention can quickly test a large number of lift arms in accordance with the automated measurement of the contour degree of the lift arm, it is possible to shorten the time required for the test operation of the lift arm, and improve the workability.

On the other hand, the second cam test apparatus 20 according to the present embodiment, as shown in Figures 1 and 2, by supplying a high-pressure air to the lift arm 10 is fixed to the measurement position contour surface 11 It may further include a foreign matter removal unit 27 for removing foreign matter or dust on the.

Accordingly, the present invention can prevent the precision of the test results due to contamination of the lift arm from being lowered.

Next, the test method of the second cam test apparatus for the continuously variable valve lift apparatus of the engine according to a preferred embodiment of the present invention will be described in detail.

4 is a flowchart illustrating a test method of a second cam test apparatus for a continuously variable valve lift apparatus of an engine according to a preferred embodiment of the present invention.

When power is supplied to the second cam test apparatus 20, in step S10 of FIG. 4, the control unit 26 drives the supply unit 21 to supply the lift arm 10 to a preset measurement position (S10).

That is, the conveying means of the supply part 21 conveys the lift arm 10 sequentially, and the feeding robot injects the lift arm 10 conveyed by the conveying means to a measurement position.

At this time, the fixing member 35 is installed at the measurement position, and the insertion protrusion formed at the upper end of the fixing member 10 is inserted into the shaft installation hole 12 of the lift arm 10, and the upper end of the fixing jig 31 is provided. The insertion protrusion formed in the insertion piece is inserted into the link piece assembly hole 13 of the lift arm 10.

Then, the controller 26 controls the operation of the first air cylinder 30 to move the fixing jig 31 away from the fixing member 35.

Thus, when the fixing jig 31 moves to a preset setting position, the position detecting sensor 32 detects the fixing jig 31 and generates a detection signal.

Subsequently, the controller 26 stops the operation of the first air cylinder 30 and controls the operation of the second air cylinder 33 to lower the clamp 34 according to the detection signal of the position sensor 32. do.

Accordingly, the lift arm 10 is firmly fixed by the fixing member 35, the fixing jig 31 and the clamp 34 (S11).

As such, when the fixing operation of the lift arm 10 is completed, the control unit 26 operates the foreign material removing unit 27 to inject high pressure air to the lift arm 10 to remove dust from the contour measuring surface 11. Or foreign substances can be removed.

On the other hand, the measuring sensor 42 is disposed perpendicular to the straight line connecting the center of the shaft mounting hole 12 and the link piece assembly hole 13 of the lift arm 10, so that the contour of the lift arm 10 is also measured surface 11 ) Is in contact with the state.

The control unit 26 controls the drive of the servomotor 40 to measure the contour of the lift arm 10 using the measuring unit 23.

The servo motor 40 generates a rotational force according to the control signal of the controller 26, and the mobile unit 41 connected to the servomotor 40 moves by the rotational force of the servomotor 40.

At this time, the measuring sensor 42 measures the displacement generated while moving along the contour measuring surface 11 in a state in contact with the contour measuring surface 11 of the lift arm 10, and the display unit 25 measures The measured contour degree measurement value is displayed on the screen (S12).

Accordingly, the control unit 26 compares the contour measurement value measured by the measuring sensor 42 with a reference value stored in the internal memory in advance (S13), and determines whether or not it is a normal product according to the comparison result, The display unit 25 is controlled to display the determination result on the screen.

That is, when it is determined that the defective product is determined in step S13, the control unit 26 controls the driving of the discharge unit 24 to move the lift arm 10 determined as the defective product to the discharged defective product (S14).

On the other hand, if it is determined that the normal product as a result of the check in step S13, the control unit 26 controls the driving of the discharge unit 24 to move the lift arm 10 determined to be a normal product to a predetermined discharge position (S15). .

Accordingly, the normal product is sequentially loaded and discharged by the normal product discharge unit, and the defective product is temporarily stored in the defective product discharge box.

When one lift arm test process is completed through such a process, the control unit 26 controls to repeatedly perform steps S10 to S15 until an input to a test operation end command is made through an input unit (not shown).

Accordingly, the present invention can automate the test operation of the lift arm, thereby reducing the test time and improving workability when testing a large number of lift arms.

Through the above process, the present invention can accurately measure the contour of the lift arm applied to the continuously variable valve lift apparatus of the engine.

Although the present invention has been described in detail with reference to the above embodiments, it is needless to say that the present invention is not limited to the above-described embodiments, and various modifications may be made without departing from the spirit of the present invention.

The present invention is applied to a technique for precisely measuring the contour of the lift arm applied to the continuously variable valve lift apparatus of the engine.

10: lift arm 11: contour measuring surface
12: shaft installation hole 13: link assembly assembly
20: Second cam tester for continuous variable valve lift of engine
21: supply part 22: fixed part
23: measuring section 24: discharge section
25: display unit 26: control unit
27: foreign matter removal unit 30: the first air cylinder
31: Fixed jig 32: Position detecting sensor
33: second air cylinder 34: clamp
35: fixing member 40: servomotor
41: mobile unit 42: measuring sensor

Claims (17)

Supply unit 21 for supplying the lift arm 10 to a predetermined measurement position,
A fixing part 22 for fixing the lift arm 10 to the measurement position,
Measuring unit 23 for measuring the contour while moving along the contour measuring surface 11 of the lift arm 10 fixed to the measuring position and
And a controller 26 comparing the measured value measured by the measuring unit 23 with a preset reference value to determine whether there is a defect.
The measuring unit 23 is a servo motor 40 for generating a rotational force,
The mobile unit 41 linearly reciprocates in the left and right directions by the rotational force of the servo motor 40 and
It is installed on one surface of the mobile unit 41 and the front end includes a measuring sensor 42 in contact with the contour measuring surface 11 of the lift arm 10 to measure the contour,
The measuring sensor 42 is a second for the variable valve lift device of the engine, characterized in that installed vertically with a straight line connecting the center of the shaft mounting hole 12 and the link piece assembly hole 13 of the lift arm (10). Cam tester. The method of claim 1,
A display unit 25 for displaying a contour figure measured by the measurement unit 23 and a result of determining whether the controller 26 is a normal product; and
Second cam test apparatus for a continuously variable valve lift apparatus of the engine, characterized in that it further comprises a discharge part (24) for separating and discharging the lift arm (10) determined to be a defective product and the lift arm (judged as a normal product). The method of claim 1 or 2, wherein the supply unit 21
Conveying means for sequentially conveying the lift arm 10 along a pair of rails provided on the base plate;
Second cam test apparatus for a continuously variable valve lift apparatus of the engine, characterized in that it comprises an injection robot for introducing the lift arm (10) transferred by the transfer means to the measuring position. The method of claim 1 or 2, wherein the fixing portion 22
Fixing member 35 is installed at the measuring position,
First and second air cylinders 30 and 33 operated by air pressure,
Fixing jig 31 for reciprocating forward and backward toward the fixing member 35 by the operation of the first air cylinder 30 and
A second cam test apparatus for a continuously variable valve lift apparatus of an engine, characterized in that it comprises a clamp (34) for elevating operation by the operation of the second air cylinder (33) to secure the lift arm (10) from the top. 5. The method of claim 4,
The fixing part 22 further includes a position detecting sensor 32 installed at one side of the fixing jig 31 to detect the position of the fixing jig 31.
The control unit 26 controls the driving of the first and second air cylinders 30 and 33 according to the detection signal of the position detecting sensor 32. Test equipment. 5. The method of claim 4,
The lift arm 10 and the shaft mounting hole 12, the control shaft is installed
A link piece assembly hole 13 is formed in which the link piece is hingeably rotatable,
The fixing member 35 is formed with an insertion protrusion inserted into the shaft installation hole 12,
The fixing jig 31 is a second cam test apparatus for a continuously variable valve lift apparatus of the engine, characterized in that the insertion projection is inserted into the link piece assembly hole 13 is formed. delete 3. The method according to claim 1 or 2,
The measuring sensor 42 is a second cam test apparatus for a continuously variable valve lift apparatus of an engine, characterized in that the contact displacement measuring sensor for measuring displacement while moving along the contour measuring surface 11 of the lift arm 10. . The method of claim 2, wherein the discharge portion 24
Transfer robot that transfers the finished product,
A normal product discharge unit for sequentially loading and discharging the normal product transported by the transfer robot;
A second cam test apparatus for a continuously variable valve lift apparatus of an engine, comprising: a defective product discharge box for temporarily storing a defective product. 3. The method according to claim 1 or 2,
The engine further comprises a foreign material removal unit 27 for supplying high-pressure air to the lift arm 10 fixed at the measurement position to remove foreign substances or dust from the contour measuring surface 11. Second cam tester for variable valve lifts. (a) supplying the lift arm to a preset measurement position using a supply;
(b) operating the fixing part to fix the lift arm supplied to the measuring position;
(c) measuring the contour by moving the measuring sensor in contact with the contour measuring surface of the lift arm; and
(d) displaying the contour measurement value measured in step (c) on a screen of the display unit;
The measurement sensor is a second variable valve lift device for the engine, characterized in that the contact measuring the contour profile in the state of being installed perpendicular to the straight line connecting the center of the shaft installation hole and the link piece assembly hole of the lift arm to measure the contour view Cam test method. 12. The method of claim 11,
(e) determining whether the product is normal by comparing the contour degree measurement value measured in the step (c) with a preset reference value; and
(F) the second cam test method for the continuously variable valve lift apparatus of the engine, characterized in that further comprising the step of discharging the lift arm determined as a defective product in step (e) and the lift arm determined to be a normal product. . The method of claim 11 or 12, wherein step (b)
(b1) fixing the jig into which the insertion projection is inserted into the link piece assembly hole of the lift arm to one side to fix the fixing jig between the fixing member and the fixing jig inserted into the shaft installation hole of the lift arm;
(b2) A second cam test method for a continuously variable valve lift apparatus of an engine, comprising the step of lowering a clamp on an upper portion of a lift arm to fix the lift arm between the fixing member and the clamp. delete The method of claim 13, wherein step (b)
A first air cylinder configured to sense a position of the fixed jig moved in the step (b1) by using a position sensor installed at one side of the fixed jig, and to move the fixed jig when the fixed jig is moved to a preset position. The second cam test method for the continuously variable valve lift apparatus of the engine, characterized in that to stop the operation of the operation, the second cylinder for operating the clamp. The method of claim 12, wherein step (f)
(f1) temporarily moving the lift arm 10 determined as a defective product in step (e) to a defective product discharge box and temporarily storing the defective product;
(f2) Second cam test for the continuously variable valve lift apparatus of the engine, comprising moving the lift arm 10 determined to be a normal product to a preset discharge position and sequentially loading and discharging it by the discharge unit. Way. 13. The method according to claim 11 or 12,
(g) operating the debris removal unit to spray high pressure air to the lift arm fixed at the measurement position to remove dust or foreign matter on the contour measurement surface; Second Cam Test Method

Images