KR100306401B1 - Jig clamping apparatus to fix vehicle's panel - Google Patents

Abstract

An object of the present invention is to enable the clamping of the body panels of all shapes irrespective of the shape of the body panel, thereby greatly reducing the equipment cost and to reduce the weight of the device by simplifying the structure jig clamp for fixing the body panel during work To provide a device, the present invention comprises a cylinder operated by pneumatic or hydraulic;

A piston extending downward to emerge from the cylinder;

A clamp main body rotatably connected to the lower portion of the piston by a hinge and positioned in a horizontal state when the vehicle body panel is clamped and fixed;

A pneumatic chamber provided in the clamp body so that the air pressure generated by the compressor acts;

A plurality of pin receiving holes vertically formed such that the clamp body communicates with the pneumatic chamber in a horizontal position;

A support pin which is accommodated in each of the pin receiving holes and is pushed upwards when pneumatic pressure is applied to the pneumatic chamber to support the bottom surface of the vehicle body panel;

One end of the upper end is rotatably connected to the cylinder and the lower end is rotatably connected to the support lever protruding from the clamp body, and the support pin cooperates with the support pins to push up the body panel from the bottom. It is characterized in that it comprises a vehicle body panel upper support which is installed on the upper side of the clamp body so as to pinch the vehicle body panel between the pins.

Description

Jig clamping apparatus to fix vehicle's panel

The present invention relates to a jig clamp device for fixing the body panel during the body panel processing operation.

The body of the vehicle is a frame for supporting the loads and reaction forces from the axle, which forms the frame for each device or body constituting the chassis, and exterior parts such as doors, fenders, and seats as a main body of the part where a person rides. Consists of a body for mounting the internal parts.

This body is composed of various kinds of panel members, such as door panels, instrument panels, side panels, cowl panels, hood panels, trunk lid panels, roof panels, quarter panels, etc. It has different characteristics.

Accordingly, in order to process a vehicle body panel having a complicated cross-sectional shape, a jig clamp device for clamping and fixing it is required.

The conventional apparatus for clamping and fixing the vehicle body panel during the machining operation of the vehicle body panel includes a jig clamp device of the same method as shown in FIG.

The conventional jig clamp device shown has two pneumatic (or hydraulic) cylinders 40 and 41 which are installed vertically opposite to each other, and pistons 42 and 43 which emerge from the bottom of the cylinders 40 and 41. ), Clamps 48 and 49 for rotatably mounted on the lower ends of the pistons 42 and 43 and hinges 44 and 45 to support the body panel 46, and cylinders 40 and 41. The upper side is rotatably connected to the hinge 50, 51 and the lower side is rotatably connected to the hinge 54, 55 on the upper portion of the support lever 52, 53, the clamp 48 The upper support 47 and the lower ends of the support levers 52 and 53 which are fixed at the upper side together with the 49 are rotated to the clamps 48 and 49 body or to the hinges 52 and 53. When the pistons 42 and 43 are retracted (raised) to be immersed in the cylinders 40 and 41, the hinges 44 and 45 are raised while the clamps 48 and 49 are raised. In the 90 ° direction, ie the axial direction of the pistons 42 and 43 It is to position in the same direction and the vertical direction.

When the cylinders 40 and 41 are operated again and the pistons 42 and 43 are extended (lowered), the hinges 44 and 45 are lowered, and the hinges 52 and 53 of the support levers 52 and 53 are lowered. The clamps 48 and 49 on both sides rotate by 90 ° in a direction facing each other, thereby supporting the curved bottom surface of the body panel 46, and the piston 42 ( The body panel 46 is sandwiched and fixed between the upper support 47 and the clamps 48 and 49 while the 43 and the clamps 48 and 49 are perpendicular to each other.

By the way, according to the jig clamp apparatus of the conventional structure, the following problems are pointed out.

Since the end faces of the clamps 48 and 49 supporting the body panel 46 must be made to conform to the outer contour shape of the body panel 46, the clamps 48 are adapted to the respective vehicle types when the second or more panels are operated. (49) must be manufactured and mounted, which makes it difficult to cope with multiple models, causing cost increase.If the shape of the body panel 46 is changed, it is difficult to recycle the existing clamps 48 and 49. In order to respond to various designs for changing the shape of the body panel when working on a new vehicle, the clamps 48 and 49 must be manufactured at each time, thus increasing the investment cost and delaying the mass production schedule. have.

In addition, two clamps 48 and 49 are required in the lower part in order to sandwich the body panel 46 in cooperation with the upper support 47, so that the same device is symmetrically needed in the whole, which complicates the device and increases weight and installation space. Will result in an enlargement of.

Therefore, the present invention has been proposed in view of the above problems, and its object is to

It is possible to provide a jig clamp device for fixing the body panel during the body panel processing work, which can greatly reduce the equipment cost and reduce the device weight by simplifying the structure by allowing the clamping of the body panel of all shapes regardless of the shape of the body panel. have.

The present invention to achieve the above object

A cylinder operated by pneumatic or hydraulic pressure;

A piston extending downward to emerge from the cylinder;

A clamp main body rotatably connected to the lower portion of the piston by a hinge and positioned in a horizontal state when the vehicle body panel is clamped and fixed;

A pneumatic chamber provided in the clamp body so that the air pressure generated by the compressor acts;

A plurality of pin receiving holes vertically formed such that the clamp body communicates with the pneumatic chamber in a horizontal position;

A support pin which is accommodated in each of the pin receiving holes and is pushed upward when pneumatic pressure is applied to the pneumatic chamber to support the bottom surface of the vehicle body panel;

One end of the upper end is rotatably connected to the cylinder and the lower end is rotatably connected to the support lever protruding from the clamp body, and the support pin cooperates with the support pins to push up the body panel from the bottom. It is characterized in that it comprises a vehicle body panel upper support which is installed on the upper side of the clamp body so as to pinch the vehicle body panel between the pins.

According to claim 2 of the present invention

A flanged bush is fitted to an end of the pin receiving hole, and the support pin protrudes out of the hole through the flanged bushing.

Moreover, according to Claim 3 of this invention,

The lower end of the support pin is characterized in that it is provided with two disc flanges in close contact with the inner wall surface of the pin receiving hole.

And according to claim 4 of the present invention

And a sealing member for sealing a gap with the pin insertion hole so as to prevent leakage of compressed air in the space between the disc flanges.

Further, according to claim 5 of the present invention

A protective cover for preventing separation of the flanged bush is fixed to the surface of the clamp body through which the support pin protrudes by a fixing screw.

Moreover, according to Claim 6 of this invention,

The configuration of the pneumatic chamber, the pin receiving hole and the support pin is characterized in that formed in a separate housing detachably connected to the clamp body.

1 is a front view showing a jig clamp device according to the present invention.

Figure 2 is a detailed cross-sectional view of the housing according to the present invention

3 is a plan view of a housing according to the present invention;

4 is a front sectional view showing a flanged bush according to the present invention.

5 is a view showing an initial state of the jig clamp device according to the present invention.

6 is a view showing a state of clamping the vehicle body panel of the jig clamp device according to the present invention.

7 is a conventional jig clamp device

※ Explanation of code for main part of drawing

1: cylinder 2: piston

3,22,23: hinge 4: clamp body

5 housing 8 pneumatic chamber

9: air inlet 10: air outlet

11: pin receiving hole 12: body panel

13 support pin 14 flange type bush

15,16: disc flange 17: sealing member

18: Protective cover 19: Fixing screw

20: support lever 21: body panel upper support

Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front view showing a jig clamp device according to the present invention, in which 1 is a cylinder operated by pneumatic or hydraulic pressure.

The cylinder 1 is installed upright on the upper side of the apparatus so as to face downward, and the piston 2 protruding from the cylinder 1 protrudes downward.

The lower end of the piston (2) is connected to the clamp body (4) rotatably by a hinge (3), the clamp body (4) is located in line with the piston (2) axis in accordance with the appearance of the piston (2) Or (see FIG. 5) or rotated 90 ° to be positioned horizontally, as shown in FIG. 1, wherein the clamp body 4 has a single body extending in the longitudinal direction or connecting a separate housing 5 (6) The clamp and the bolt 7 may be detachably connected to the clamp main body 4.

When the clamp main body 4 or the separate housing 5 is connected, a pneumatic chamber 8 is formed in the housing 5 body, and the pneumatic chamber 8 is not shown through the air inlet 9. Compressed air connected to the side and introduced into the pneumatic chamber 8 through the air inlet 9 is returned to the compressor side when a valve (not shown) on the air outlet 10 side is opened.

At least one row or a plurality of rows of pin insertion holes 11 are formed to have a predetermined distance vertically upward so as to communicate with the pneumatic chamber 8 in a state where the housing 5 is horizontal, and each pin insertion hole ( 11, in the natural state in which the support pin 13 for supporting the body panel 12 is inserted, the upper portion of the support pins 13 protrudes slightly upward from the surface 5a of the housing 5.

And the upper end of the pin insertion hole 11 is fitted with a cylindrical flange-shaped bush 14 having a flange (14a) in close contact with the surface (5a), the support pin 13 is the flange-shaped bush (14) It protrudes upward through.

Due to the flanged bush 14, a gap exists between the support pin 13 and the pin insertion hole 11, and at the lower end of the support pin 13 to prevent the support pin 13 from shaking and air leakage. Two disc flanges 15 and 16 are formed in airtight contact with the pin insertion hole 11, and a seal ring for preventing external leakage of compressed air is provided in the space between the disc flanges 15 and 16. The member 17 is fitted.

In addition, a protective cover 18 is fixedly mounted to the housing 5 by fixing screws 19 on the upper surface 5a of the housing 5 to prevent the flanged bush 14 from being pulled out.

In addition, the support body 20 protrudes substantially vertically upward from the clamp body 4 in a horizontal state, and the support lever 20 is fixedly connected to the clamp body 4 or rotatably connected by a hinge. .

The lower end of the body panel upper support 21 is rotatably connected to the upper end of the support lever 20 by a hinge 22, and the upper end of the body panel upper support 21 is connected to the cylinder 1. ) Is rotatably connected to the body by a hinge (23).

The body panel upper support 21 is located at a position opposite to the support pins 13, that is, the upper part of the body panel 12, and the body panel upper support 21 and the support pins 13 cooperate with each other. The body panel 12 is sandwiched between and fixed to it.

The operation process of clamping and fixing the vehicle body panel 12 by the present invention as described above is as follows.

In the initial state, the piston 2 is in the retracted state immersed in the cylinder 1 as shown in FIG. 5, so the hinge 3 point is in the raised position, and the clamp body 4 and the housing 5 are connected to the piston 2. It is in line with the axial direction.

When the piston 2 moves forward (falls) by supplying air pressure to the cylinder 1, the hinge 3 point moves downward, and the support body 20 is connected to the upper body panel 21 with the hinge 22 structure. The clamp body 4 and the housing 5 connected at the same time start to rotate.

When the clamp main body 4 starts to rotate and reaches a 90 ° position, that is, the cylinder 1 stops working, the support pins 13 are aligned to the lowest lowered position, and the work piece is placed thereon. The body panel 12 is placed (see Fig. 1).

Then, when compressed air is supplied to the pneumatic chamber 8 through the air inlet 9, the compressed air pressure acts on the disc flange 16 at the bottom of each support pin 13 to push the support pin 13 upward. do. Accordingly, the body panel 12 is raised, and when the upper surface of the body panel 12 contacts the upper body support 21 of the body panel, further rise of the body panel 12 is stopped, and each support pin 13 therefrom. They rise until they contact the contour surface of the body panel 12 (see FIG. 6).

Therefore, the support pins 13 having the air cushion by the air pressure are raised to the opposite points of the body panel 12 and between the upper support 21 irrespective of the bending and complexity of the contour surface of the body panel 12. It will be able to fix the body panel 12 in the sandwich.

When releasing the fixed state of the body panel 12, when the compressed air in the pneumatic chamber 8 is discharged, each of the supporting pins 13, which have risen, descends until the bottom surface of the pin insertion hole 11 wears down. Since the body panel 12 is also lowered, as shown in FIG. 1, the sandwiching state with the upper support 21 is released.

According to the present invention, a plurality of support pins are provided to raise and lower by pneumatic pressure in a clamp main body supporting a lower part of a vehicle body panel or a housing connected from the clamp main body against an upper support supporting an upper part of a vehicle body panel. When the body panel is sandwiched between the upper support and the fixed body, the support pins are lifted up to the contour surface of the body panel by pneumatic pressure to support the body panel so that the body panel can be fixed regardless of the shape difference of the body panel. As a single device, it can be used for all body panel work. Therefore, the equipment cost of the device is minimized and the manufacturing period of the model car is greatly shortened when designing a new car model. The structure of the device is simple, requires little space for installation, and also Unlike the prior art during manufacturing, since the coordinate setting according to the complex shape and type of the body panel is not required, the design and manufacture of the device are simplified.

Claims (6)

A cylinder operated by pneumatic or hydraulic pressure; A piston extending downward to emerge from the cylinder; A clamp main body rotatably connected to the lower portion of the piston by a hinge and positioned in a horizontal state when the vehicle body panel is clamped and fixed; A pneumatic chamber provided in the clamp body so that the air pressure generated by the compressor acts; A plurality of pin receiving holes vertically formed such that the clamp body communicates with the pneumatic chamber in a horizontal position; A support pin which is accommodated in each of the pin receiving holes and is pushed upward when pneumatic pressure is applied to the pneumatic chamber to support the bottom surface of the vehicle body panel; One end of the upper end is rotatably connected to the cylinder and the lower end is rotatably connected to the support lever protruding from the clamp body, and the support pin cooperates with the support pins to push up the body panel from the bottom. Jig clamp device for fixing the body panel during the body panel processing operation, characterized in that it comprises a body panel upper support which is installed on the clamp body upper side so as to pinch the body panel between the pins. The method of claim 1, A flange type bush is fitted at an end of the pin receiving hole, and the support pin protrudes out of the hole through the flanged bushing. The method of claim 2, Jig clamp device for fixing the body panel during the body panel processing operation, characterized in that the lower end of the support pin is provided with two disc flanges in close contact with the inner wall surface of the pin receiving hole. The method of claim 3, wherein And a sealing member for sealing a gap with the pin insertion hole in a space between the disc flanges to prevent leakage of compressed air. The method of claim 2, A protective cover for preventing separation of the flanged bush is fixed to the surface of the clamp body protruding by the support pin by a fixing screw. The method according to any one of claims 1 to 5, The pneumatic chamber, the pin receiving hole, the support pins, etc., the jig clamp device for fixing the body panel during the body panel processing operation, characterized in that formed in a separate housing body detachably connected to the clamp body.