KR102424224B1 - Ball screw nut exclusive inspection device of clutch for vehicle - Google Patents

Abstract

The present invention relates to a ball screw nut-only inspection apparatus for an electronic clutch for a vehicle, comprising: a reference setting jig (1) for setting an inspection standard by fixing a hole (c1) formed in the center of a body (c) of the ball screw nut; A fixing jig 2 for fixing a position by inserting a connecting shaft c2' on one side of the body c, and a fixing block c3 at the lower part of the body c with reference to the center of the hole c1 A fixed block first inspection jig (3) having a gauge (p) for inspecting the length, and a gauge for inspecting the machining length of the connecting shaft (c2) of the other side of the body (c) based on the center of the hole (c1) Connecting shaft inspection jig (4) having (p); It has a characteristic that gives

Description

Inspection device for ball screw nut of electronic clutch for vehicle {BALL SCREW NUT EXCLUSIVE INSPECTION DEVICE OF CLUTCH FOR VEHICLE}

The present invention relates to an inspection device for a ball screw nut of an electronic clutch for a vehicle, and more particularly, to a ball screw of an electronic clutch for a vehicle that allows a single inspection device to quickly and easily inspect the machining tolerance of a plurality of processing parts of a ball screw nut It relates to a nut-only inspection device.

A vehicle ball screw nut is one of the parts applied to the electronic clutch, and it is a precision-processed product that requires actuator functionality to increase gear shifting and fuel efficiency while promoting gear shifting without a clutch.

That is, the above-mentioned ball screw nut is precision machined through a CNC lathe, and as shown in FIGS. 1 and 2, the connecting shafts c2 and c2' of both sides of the ball screw nut center around the hole c1 of the central part of the body (c) and It is an essential part that the lower fixing block (c3) must be precisely machined (accurate machining shape and shape tolerance) and must be accompanied by a close inspection of the machining dimensions corresponding thereto in the post-process.

Here, the technology of the present invention as a background lies in the precision machining inspection of the ball screw nut, which is the precision part.

To explain this in more detail, the conventional method of inspecting the processing of both the connecting shafts c2 (c2') and the lower fixing block (c3) of the ball screw nut is a measuring instrument such as a vernier caliper, a micrometer, a dial gauge, a height gauge, etc. It was limited to manual operation in a state in which the operator gripped by hand.

Therefore, it has been pointed out that the accuracy and precision of the inspection of the machining dimensions of the connecting shafts on both sides of the ball screw nut and the lower fixed block were very low, and the problem that the inspection time and efficiency were greatly reduced and the reliability and productivity of the work were lowered. .

In addition, the above problem has been raised as a concern that may cause a malfunction of the electronic clutch for a vehicle in the future as well as a factor of increase in manpower and product cost.

Korean Patent Application No. 2013-0110295

The present invention was invented to solve the above-mentioned problems in the prior art, and an object of the present invention is to fix the ball screw nut and set the inspection standard, and to process both connecting shafts and the lower fixed block in the machining inspection of the ball screw nut. The purpose of the inspection is to make the inspection more accurate and to greatly increase the efficiency of the inspection work.

The inspection device for the ball screw nut of the electronic clutch for a vehicle of the present invention, which is presented as a means of solving the above problems,

A reference setting jig (1) for setting an inspection standard by fixing a hole (c1) formed in the center of the body (c) of the ball screw nut;

A fixing jig (2) for fixing the position by retracting the connecting shaft (c2') of one side of the body (c);

A fixing block first inspection jig (3) having a gauge (p) for inspecting the protrusion length of the fixing block (c3) of the lower part of the body (c) based on the center of the hole (c1);

A connecting shaft inspection jig 4 having a gauge p for inspecting the machining length of the connecting shaft c2 of the other side of the body c based on the center of the hole c1, and

A fixing block second inspection jig 5 for inspecting the width and length of the fixing block c3 based on the center of the hole c1 is connected to the upper part of the installation die 6, so that the processing inspection of the ball screw nut is sequentially performed It is characterized in that it can be made.

According to the present invention, the processing inspection of the ball screw nut can be performed more quickly and conveniently through the above means, so that the work efficiency and quantity can be greatly expected with a minimum number of personnel.

In addition, the present invention has the effect of improving the quality of inspection and reliability by maximizing the precision of the machining inspection of both connecting shafts and the lower fixed block while giving the accuracy of the fixing and inspection standards of the ball screw nut.

1 is a front view of a ball screw nut used in the present invention;
2 is a plan view of a ball screw nut used in the present invention;
3 is a plan view showing the overall configuration of the present invention;
Figure 4 is a partial enlarged front view showing an embodiment of the standard setting jig and the fixing jig of the present invention;
Figure 5 is a partial enlarged front view showing an embodiment of the first fixed block inspection jig of the present invention,
Figure 6 is a partial enlarged view of a side section showing an embodiment of the connecting shaft inspection jig of the present invention;
7 is a partially enlarged exemplary view showing an embodiment of the second fixed block inspection jig of the present invention;
8 and 9 are diagrams of another embodiment of the present invention.

Hereinafter, a detailed configuration of the present invention and an embodiment thereof for supporting the means for solving the above problems will be described in detail with the accompanying drawings. However, the accompanying drawings may be exaggerated, omitted, or schematically shown for the convenience of explanation regarding the main parts, and the terms and names used in the description are impliedly defined by the shape, action, role, etc. of the configuration rather than the dictionary meaning. It can be done, and the description of the direction will be described with reference to FIG. 3 , and the description of the location is determined based on the center of each component or the center of the circle. In addition, detailed descriptions of pre-registered known technologies and conventional technologies may obscure the gist and are omitted or replaced with simple symbols or names.

In addition, the specific structure, shape, shape, arrangement, size, etc. of the configuration that can be identified through the drawings, the operation of the configuration that can be inferred through the drawings, and the effect thereof may also obscure the gist, so the detailed description will be omitted. Also, bolts, welding parts, holes, etc. applied for coupling between components may obscure the gist and may be omitted from the drawings.

First, the configuration of the electronic clutch for a vehicle of the present invention for a dedicated inspection device for a ball screw nut will be described in detail with reference to FIG. 3 .

The vehicle electronic clutch ball screw nut-only inspection device of the present invention is a reference setting jig (1); a fixing jig (2); a fixing block first inspection jig (3); a connecting shaft inspection jig (4); a fixing block The main feature is that the second inspection jig 5;, is connected to the upper part of the installation die 6 so that the processing inspection of the ball screw nut can be sequentially simple/conveniently performed and precise inspection is made.

In detail, the reference setting jig (1) is,

It is characterized in that the reference shaft 12 having the same outer diameter as the inner diameter of the hole c1 formed in the center of the body (c) of the ball screw nut as the center of the installation bracket (11) is axially installed to a certain length.

At this time, the reference shaft 12 is configured to protrude from the installation bracket 11 to the same length as the depth of the hole c1 of the body c, and at the same time has a rotational action by the bearing means in the installation bracket 11 .

The fixing jig (2) is,

It is installed in the center of the installation bracket 21 and is composed of a fixed shaft 22 that slides in the lateral direction. It is characterized in that it is formed deeply.

In addition, the fixed shaft 22 is characterized in that the key groove of a certain length formed on the outer periphery is bound to the key of the fixed installation bracket 21 to achieve lateral slide stabilization.

Here, the fixing jig 2 is positioned on one side (left side) of the reference setting jig 1 with reference to FIG. 3 .

Fixed block first inspection jig (3),

The movable block 33 installed and movable on the transfer block 32 of the guide rail 31, and the central part of the movable block 33, the fixed bracket 34 of one end is accumulating to act as a seesaw, and connecting tips on both ends, respectively (35) characterized in that it consists of a gauge (p) located directly above the fixed block first inspection shaft (36) in which the protrusion is formed, and one side connection tip (35) of the shopping mall fixed block first inspection shaft (36) do

Here, the gauge (p) is located at the upper end of the gauge mounting base 37 configured on the upper part of one end of the fixing bracket 34, and at the same time, the center lower surface of the gauge mounting base 37 and the upper part of the first inspection shaft 36 of the fixed block A spring 38 is placed between the surfaces so that the fixed block first inspection shaft 36 has resilient force.

In addition, the fixed block first inspection jig (3) is positioned on the other side (right) of the reference setting jig (1) with reference to FIG. 3 .

Connection shaft inspection jig (4),

The guide rail 41 has a stopper installation table 42 having a stopper 42 ′ installed at one end thereof, and a transfer block 43 coupled to the guide rail 41 at the lower portion, and an installation bracket having a predetermined height at the upper portion ( 44) having a movable block 45, a connecting shaft inspection shaft 46 that is installed through the upper portion of the installation bracket 44 while having a certain length, and one end is configured on one side of the movable block 45 and the other end is It is characterized in that it consists of a spring installation shaft 48 having a spring 47 placed thereon while being installed through one side of the stopper installation table 42, and a gauge p installed in a position adjacent to the other side of the movable block 45. do.

The connecting shaft inspection shaft 46 has a key groove of a certain length formed on the outer periphery is bound to the key of the installation bracket 44 to achieve front and rear slide stabilization.

The stopper 42' controls the movement of the movable block 45 moving along the guide rail 41 over a certain distance so that its safety can be achieved.

The spring installation shaft 48 and the spring 47 of the movable block 45 prevent linear motion and flow of the movable block 45, and a unidirectional feeding force can be exerted by resilient force.

In addition, the connecting shaft inspection jig (4) is positioned in front of the reference setting jig (1) with reference to FIG. 3 .

Fixed block second inspection jig (5),

It is characterized in that it is composed of a fixed block second inspection shaft 51 that is installed through the center of the movable block 45 of the connecting shaft inspection jig (4) while having a certain length.

For reference, the fixing block second inspection shaft 51 is positioned directly below the connecting shaft inspection shaft 46, and a key groove of a certain length formed on the outer periphery is bound to the key of the installation bracket 44 in the front and rear directions. Slide safety boots are provided.

After completing the description of the configuration of the present invention, an embodiment according to the configuration will be described below.

First, the shape (configuration) of the ball screw nut of the electronic clutch for a vehicle used in the present invention and its inspection method will be briefly described with reference to the front view of FIG. 1 and the plan view of FIG. 2 .

In general, a ball screw nut is formed with a hole c1 having a predetermined depth and an inner diameter in the center of the cylindrical body (c), and is located on both sides of the body (c) and connected to the body (c) at one end (c5) And a connecting shaft (c2) (c2') having a locking step (c4) in the center is formed, and the fixing block (c3) is formed to protrude into the lower part of the body (c).

And as shown in FIG. 1, the manufactured ball screw nut has a downward protrusion length (b) of the fixing block (c3) with the center of the hole in the body as a reference (a);

Formation length (b1) of the connecting shafts (c2, c2') with the center of the hole in the body as the reference (a'),

Based on the center of the hole in the body (a'), the length (b1) of the engaging step (c4) formed at the center of the connecting shaft,

The length (b3) of the connecting end (c5) formed on one side of the connecting shaft with the center of the hole in the body as the reference (a');

The width direction length (b4) of the fixing block (c3) is precisely inspected using the hole center of the body as the reference (a').

Accordingly, the present invention is an invention developed to maximize the precision of the machining inspection of the above-described ball screw nut and to improve the convenience and efficiency of the inspection at the same time.

As shown in Figure 2, the present invention fixes the body (c) of the ball screw nut with a reference setting jig (1) to fix the fixing jig (2), the fixing block first inspection jig (3), the connecting shaft inspection jig (4), Through the fixing block second inspection jig (5), it is characterized in that the above-described several processing inspections can be performed quickly/conveniently and precisely.

in detail,

The hole c1 formed in the body c of the ball screw nut is inserted into the reference shaft 12 of the reference setting jig 1 to have the ball screw nut in a state of waiting for inspection.

The standard setting jig (1) is a means for setting the inspection standard of the ball screw nut, and the inspection standards (a), ( a') is always set at a certain position.

On the other hand, since the reference shaft 12 has a structure that can be axially rotated from the installation bracket 11, rotate the ball screw nut clockwise or in the opposite direction if necessary, and repeat the inspection of the connecting shafts c2 and c2' to be described later. to make it possible to implement

Next, when the body (c) of the ball screw nut according to the above is positioned in the reference setting jig (1), the fixing shaft 22 of the fixing jig (2) is moved in the direction of the body (c) one side connecting shaft (c2'). The one side connecting shaft c2' is inserted and fixed into the fixing groove 24 of the end of the fixing shaft 22 by pushing.

The fixed shaft 22 inserts and fixes one side connecting shaft c2' of the body c located on the reference shaft 12 so that the body c is moved up, down and left, right and front from the reference shaft 12. , Prevents flow or rotation in the backward direction to ensure more accurate inspection.

On the other hand, the fixing shaft 22 has a fixing pin 23 of a triangular pyramid shape with an inner center of the fixing groove 24 coupled in the horizontal direction, so that one side of the connecting shaft c2 of the body c is inserted into the fixing groove 24 . When inserted and fixed, the machining hole c2" formed in the central part of the connecting shaft c2' is press-fixed by the fixing pin 24, so that the fixing state of the body c is made more firmly.

Next, when the body (c) of the ball screw nut according to the above is fixed in position, the movable block 33 of the fixed block first inspection jig 3 is moved along the guide rail 31 in the direction of the reference setting jig (1). Push the upper fixing block first inspection shaft 36 and the gauge (p) to inspect the downward protrusion length of the fixing block (c3) of the body (c).

That is, the fixed block first inspection shaft 35 has its central part coupled to the fixed bracket 34 of the movable block 33 as shown in FIG. It is pushed down to the lower surface of the fixed block (c3) of the body (c) and moved to a moving position, and at the same time, the other end is raised and lowered by the reaction of the above action, and is connected to the gauge (p). Measure the direction protrusion length (b).

On the other hand, the fixed block first inspection shaft 36 has a semicircular connection tip 35 on both ends of the upper part, so that the fixed block first inspection shaft 36 is formed on the lower surface of the fixed block c3 of the body (c). ) One end is pushed more accurately, and the point contact is made with the fixing block c3 and the gauge p so that the inspection can be performed more accurately.

In addition, a spring 38 connected to the gauge mounting base 37 is placed on one side of the other end of the fixing block first inspection shaft 36, and a certain elastic force is added to the seesaw action, so that the connection tips 35 on both sides are fixed to the body (c). The block (c3) and the gauge (p) are connected more accurately.

Next, when the inspection of the downward protrusion length of the fixing block c3 of the body is completed, the fixing block first inspection jig 3 is returned to its original position and the movable block 45 of the connecting shaft inspection jig 4 is completed. Inspect the connecting shaft forming length (b1) on one side of the body with a gauge (p) by pushing the upper connecting shaft inspection shaft 46 in the direction of the body (c) of the ball screw nut while moving it in the lateral direction along the guide rail 41 do.

As shown in FIG. 7, the connecting axis inspection shaft 46 of the connecting axis inspection jig 4 is positioned from the installation bracket 44 of the movable block 45 by a predetermined length in the front and rear directions in the drawing, so the movable block 45 When controlling the lateral movement of the shaft, push the connecting shaft inspection shaft 46 in the direction of the body of the ball screw nut so that its end is aligned with the front end of the connecting shaft c2 on one side of the body (c). Then, with the movement of the movable block 45, the connecting shaft inspection shaft 46 is connected to the front end and the lateral direction of the connecting shaft c2 of the body (c), and the gauge (p) is the body Using the center of the hole as the reference (a'), the forming length (b1) of the connecting shaft is inspected.

Here, the gauge (p) is the gauge rod (p1) connected to the side of the machining block (45) is simultaneously variable according to the movement of the machining block (45) through the position information of the connecting shaft inspection shaft (46) Conduct an inspection.

Next, when the forming length test for one connecting shaft of the body is completed, using the connecting shaft inspection shaft 46, in the same way as the connecting shaft forming length test, the engaging step c4 of the connecting shaft center ) Inspect the forming length and the forming length of the connecting end (c5) on one side of the connecting shaft.

Inspection of the length of the forming length of the engaging step c4 at the center of the connecting shaft and the forming length of the connecting end c5 on one side of the connecting shaft is performed in the same manner as the above-described connecting shaft c2 forming length inspection, but the end of the connecting shaft inspection shaft 46 is positioned on the same line as the connecting end (c5) on one side of the engaging step (c4) or the connecting shaft (c2) of the connecting shaft (c2). Inspect the length (b3) of the connecting end formed on one side of the connecting shaft by using the engaging step forming length (b1) and the center of the hole in the body as the inspection standard (a').

Next, when the inspection of the forming length of the engaging step c4 and the connecting end c5 of the center of the connecting shaft is completed, the connecting axis inspection shaft 46 is returned to its original position and at the same time the fixing block of the fixing block second inspection jig 5 is completed. The second inspection shaft 51 is pushed in the direction of the fixing block c3 of the lower part of the body c, and the width direction length of the fixing block c3 is inspected in the same manner as above.

As shown in FIG. 8 , the fixed block second inspection shaft 51 is an installation bracket 44 of the movable block 45 and has the same configuration and action as the connecting shaft inspection shaft 46 .

Therefore, the end of the second inspection shaft 51 of the fixing block is positioned on the same line in the direction of the fixing block c3 of the body c, and the center of the hole of the body is used as the reference (a') in the same manner as described above. The width direction length (b4) is precisely inspected.

Here, when the inspection by the second inspection jig 5 of the fixing block is completed, the processing inspection of the ball screw nut is finally completed, and if necessary, the body c of the ball screw nut is rotated in the reference setting jig 1 if necessary. By changing the positions of the connecting shafts c2 (c2') on both sides, multiple length tests for the connecting shafts (c2') on the opposite side of the above description can be performed alternately.

In addition, the above-described embodiments are arranged and described in an arbitrary order to help the understanding of the present invention, and the order is not limited. Therefore, the processing characteristics and inspection environment of the Ball Screw Nut and the order of the changes and combinations are irrelevant if necessary.

On the other hand, in another embodiment of the present invention, the reference shaft 12 of the reference setting jig 1, the fixed shaft 22 of the fixed jig 2, and the movable block of the fixed block first inspection jig 3 ( 33), the movable block 45 of the connecting shaft inspection jig 4, the connecting shaft inspection shaft 46, and the fixed block second inspection shaft 51 while connecting the motor or the cylinder (s), respectively, to the cylinder (s) and gauges (p) are both operated and controlled with a microcomputer (s1) to more quickly/conveniently manage and supervise various types of inspection information and operation of the Ball Screw Nut while maximizing inspection precision.

The above description of the present invention is finished, and finally, the present invention draws a diagram of the construction of this invention and specific components included in the construction in order to help the understanding of the principle and the principle of the construction to be pursued in the present invention, The description has been made based on the drawings, and the structure, form, shape, arrangement, direction, and quantity are determined in consideration of the principle to be pursued and the configuration included in this invention and its specific components, which can be variously changed as needed will be able The configuration and specific components thereof presented in this invention illustrate the effects that those of ordinary skill in the art want to achieve in this invention and what principle is most preferable to apply in order to obtain better effects from the effects. did it Accordingly, it is most preferable that this invention be completed by including all of the above-described configurations, but it can be completed by selecting or excluding some of the configurations described above according to cost reduction, manufacturing convenience, environmental conditions or necessity. Alternatively, one or some components may be separated and merged with other components to complete it. In addition, each configuration described above may be independently applied to other technical fields other than this technical field in consideration of principles, uses, functions, roles, actions, effects, and the like. Based on this, the scope of the present invention can be claimed in the order in which the scope of the rights is wide by specifying the scope of the claims of this invention as follows as follows.

In addition, it seems that those skilled in the art will be able to fully grasp the gist to be pursued in this invention through the above-described specific contents, and the effects of the parts that are shown but not described are shown through the drawings. It can be inferred enough. Accordingly, those skilled in the art will be able to apply various modifications and changes in this technical field based on the contents mentioned in this invention.

c : body c1 : hole
c2, c2' : connecting shaft c2" : machining hole
c3 : fixed block c4 : jamming step
c5 : Connection end s : Cylinder
s1: microcomputer p: gauge
p1: gauge rod
1: Standard setting jig 11: Mounting bracket
12: reference shaft 2: fixing jig
21: installation bracket 22: fixed shaft
23: fixing pin 24: fixing groove
3: fixed block first inspection jig 31: guide rail
32: transfer block 33: movable block
34: fixing bracket 35: connection tip
36: fixed block first inspection shaft 37: gauge mounting stand
38: spring 4: connecting shaft inspection jig
41: guide rail 42: stopper installation stand
42': stopper 43: transfer block
44: installation bracket 45: movable block
46: connecting shaft inspection shaft 47: spring
48: spring installation shaft 5: fixed block second inspection jig
51: fixed block second inspection shaft

Claims (3)

A reference setting jig (1) for setting an inspection standard by fixing a hole (c1) formed in the center of the body (c) of the ball screw nut, and a connection shaft (c2') of one side of the body (c) is inserted to fix the position Fixed block first inspection jig (3) having a fixing jig (2) and a gauge (p) for inspecting the protrusion length of the fixing block (c3) of the lower part of the body (c) based on the center of the hole (c1) and a connecting shaft inspection jig 4 having a gauge p for inspecting the machining length of the connecting axis c2 of the other side of the body c based on the center of the hole c1, the installation die 6 upper part In order to make the machining inspection of the ball screw nut sequentially and precisely by configuring in conjunction with;
The reference setting jig (1) is composed of a reference shaft (12) having the same outer diameter as the inner diameter of the hole (c1) formed in the center of the body (c) of the ball screw nut to the center of the installation bracket (11) to a certain length;
The fixing jig 2 is installed in the center of the installation bracket 21 and consists of a fixing shaft 22 that slides in the lateral direction. It is configured by forming a fixed groove 24 to be a predetermined depth;
The fixed block first inspection jig 3 has a movable block 33 installed and movable on the transfer block 32 of the guide rail 31, and the center of the movable block 33 with a fixed bracket 34 at one end. The fixed block first inspection shaft 36 in which the connection tips 35 are protruded from the upper portions of both ends at the same time as the installation, and the one side connection tip 35 of the shopping mall fixed block first inspection shaft 36 is installed directly above consists of a gauge (p);
The connecting shaft inspection jig 4 includes a stopper installation table 42 having a stopper 42 ′ installed at one end of the guide rail 41 and a transfer block 43 coupled to the guide rail 41 at the lower portion. A movable block 45 having an installation bracket 44 of a certain height at the upper portion, a connecting shaft inspection shaft 46 that is installed through the installation bracket 44 while having a predetermined length, and a movable block ( 45) A gauge installed on one side and the other end is installed in a position adjacent to the other side of the stopper mounting table 42 and the spring installation shaft 48 with the spring 47 placed thereon while passing through the other end. by (p);
A fixing block second inspection jig 5 for inspecting the width and length of the fixing block c3 of the lower part of the body c based on the center of the hole c1, wherein the fixing block second inspection jig 5 By configuring the fixed block second inspection shaft 51 to be installed through the center of the movable block 45 of the connecting shaft inspection jig 4 while having a certain length;
The reference shaft 12 of the reference setting jig 1, the fixed shaft 22 of the fixed jig 2, the movable block 33 of the fixed block first inspection jig 3, and the connecting shaft inspection jig ( 4) while connecting the movable block 45, the connecting shaft inspection shaft 46, and the fixed block second inspection shaft 51 to the motor or the cylinder s, respectively, the cylinders (s) and the gauges (p) Exclusive inspection of ball screw nut of electronic clutch for vehicle, characterized in that it can be operated and controlled by microcomputer (s1) to maximize inspection precision while managing and supervising various inspection information and operation of the ball screw nut more quickly and conveniently Device. delete delete

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