JPH04118223U - Drilling device for metal fittings with elastic lining layer - Google Patents

Abstract

(57) [Summary] [Purpose] When drilling a hole in a metal fitting having an elastic lining layer, the elastic lining layer is also formed into a clean hole shape, and the surrounding area is not contaminated by chips. [Structure] A punch 28 and a die 26 are suspended from the main body 10 in a state where they face each other, and the die 26 is provided in a fixed position and the punch 28 is provided so as to be movable in the axial direction. Further, the main body 10 is set in a floating state so that it can move in the forward and backward directions of the punch 28, and when the punch 28 is pressed against the workpiece 38, the main body 10 and the die 26 are moved by the reaction force to perform hole drilling on the workpiece 38. Further, the chips generated at this time are sucked by vacuum suction through a discharge passage 36 provided in the main body 10 and discharged to the outside.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea is a metal fitting that has an elastic lining layer such as a rubber lining layer on one or both sides. This invention relates to a drilling device.

0002 [Problems to be solved by conventional techniques and ideas] A type of anti-vibration rubber is a bush with a liquid chamber inside as shown in Figure 5. There is something like that. In this figure, 100 is a vibration-proof rubber product for automobiles, and the inner cylinder metal It has a tool 102 and a rubber elastic body 104 fixed to the outside thereof. inside of it A liquid chamber 106 is provided in the liquid chamber 106, and a plastic floating body 10 is placed inside the liquid chamber 106. 8 and a liquid 110 are accommodated therein.

0003 A metal fitting 112 is fixed to the outer peripheral surface of the rubber elastic body 104, and the metal fitting 11 In contrast to No. 2, an outer cylindrical metal fitting having a thin sealing rubber lining layer 114 on the inner peripheral side. 116 are assembled together. The liquid 110 in the liquid chamber 106 is transferred to the metal fitting 118. communicated with another liquid chamber 124 through a provided through hole 120 and passage 122; The liquid 110 can be moved through the passage 122 when the rubber elastic body 104 is deformed. It has become.

0004 An air chamber 126 is formed outside the liquid chamber 124, and they are connected to a rubber die. It is divided by Yafram 128. The air chamber 126 is located inside the outer cylinder fitting 116. It is communicated with the outside air via a through hole 130.

[0005] In this anti-vibration rubber 100, an outer cylinder has a rubber lining layer 114 on the inner surface. It is necessary to form a through hole 130 in the metal fitting 116, so the conventional anti-vibration rubber product 100 is In the manufacturing process, at the stage when the rubber lining layer 114 is formed on the outer cylinder metal fitting 116, , as shown in FIG. 6, using a drill 131 to It had been drilled.

[0006]

[Problem that the idea aims to solve]

However, when drilling holes in the outer cylinder fitting 116 in this way, as shown in the figure, The rubber lining layer 114 on the inner surface, which has elasticity, cannot be removed cleanly, and During processing, there was a problem in that chips were scattered around and polluted the environment. Such problems occur when drilling holes in metal fittings that have an elastic lining layer on the inner or outer surface. This also occurred during processing.

[0007]

[Means to solve the problem]

The device of this invention was devised to solve these problems, and its The gist is (a) facing each other across the processing part of the workpiece and relatively approaching/separating them. (b) holding punches and dies arranged so that they can and (c) the main body is movable in the direction toward and away from the punch and die. The punch or die is supported in a floating state so that either the punch or the die is pressed against the workpiece. A floating means that moves the other side toward the workpiece by the reaction force when it is basted. and (d) connected to the opening of the die and connected to the vacuum suction device. and a discharge passage connected to the discharge passageway for discharging chips from machining using vacuum suction power. It is in.

[0008] [Effects of actions and ideas] In the device of the present invention, first, either the punch or the die held in the main body is It is brought close to the work and pressed against it. Then it is supported in a floating state. The body is moved in the opposite direction by the reaction force, and the other side of the punch or die is is pressed against the workpiece.

[0009] That is, the punch and die insert the workpiece and perform the drilling process. Occurred at this time The chips are removed by a vacuum suction device through a discharge passage connected to the opening of the die. It is discharged to the outside by the vacuum suction power of the unit.

0010 In this way, according to this device, chips generated during drilling are removed through the discharge passage. It is sucked in and discharged to the outside. This prevents the surrounding area from being contaminated by chips. There is no fault.

[0011] In addition, the device of the present invention uses a punch and a die to sandwich the workpiece from both sides. It may have an elastic lining layer on one or both sides for drilling purposes. It is possible to drill holes neatly.

0012

【Example】

Next, embodiments of the present invention will be described in detail based on the drawings. In FIGS. 1 and 2, 10 is the main body, which can be moved forward and backward in the left and right directions in the figure by means of a support 12. It is suspended in Noh. That is, as shown in FIG. 3, at both ends of the main body 10 in the width direction, Fitting protrusions 14 are provided, and these fitting protrusions 14 fit into the fitting recess 1 of the support body 12. 6 is slidably fitted.

[0013] As shown in FIG. 1, the main body 10 is elastically moved to the left in the figure by a spring 18. It is normally positioned so that its left end touches the stopper 20. There is.

[0014] A pair of arms 22 and 24 extend downward from the main body 10. A die 26 and a punch 28 are held in opposing positions in each case. da here The chair 26 is provided in a fixed position, and the punch 28 is inserted into the fitting hole 3 of the arm 24. 0, they are fitted and held so as to be movable in the axial direction (horizontal direction in the figure).

[0015] A cylinder 32 is fixed to the main body 10, and this cylinder 32 is used for the punch. 28, and the punch 28 is pushed in the left and right directions in the figure by the cylinder 32. It is designed to be pulled. Note that 34 is a cylindrical presser foot made of urethane.

[0016] The arm 22 on the side holding the die 26 is connected to the opening of the die 26. A discharge passage 36 is formed in this state. And one end side of this discharge passage 36 A vacuum suction device is connected to the opening.

[0017] Next, the operation of this device will be explained. Cylindrical shape with rubber lining layer on the inner surface as shown in Figures 1 and 3 The metal fittings 38 (hereinafter simply referred to as workpieces) are placed on the pallet 40 at the machining stage. When the workpiece 38 is carried to the position, the workpiece 38 is raised or The body 10 is lowered, and the punch 28 and die 26 clamp the processing part of the workpiece 38. They are now faced with each other.

[0018] Next, as shown in FIG. 4(B), the punch 28 is first rotated by the cylinder 32. It is pushed out to the center left and pressed against the workpiece 38. Then, due to the reaction force, the flow The main body 10 in the holding state moves to the right in the figure against the elastic force of the spring 18. The die 26 is moved against the workpiece 38 in the process. And Siri Based on the pressing force of the die 32, these dies 26 and A punch 28 is used to punch out a predetermined portion of the workpiece 38, that is, to make a hole. It will be done.

[0019] The chips generated at this time are collected through a discharge outlet provided in communication with the opening of the die 26. The water is discharged to the outside through the passage 36 by the vacuum suction force guided to the discharge passage 36. It will be done.

[0020] According to the apparatus of this example, even if the workpiece 38 has a rubber lining layer on its inner surface, it will not work. It is possible to drill a hole in a clean shape on the workpiece 38, and it is also easy to cut. Since the chips are discharged to the outside using vacuum suction power, the chips are not scattered around, and therefore the surrounding environment.

[0021] Although the embodiments of the present invention have been described in detail above, this is merely an example, and the present invention may be applied to other It can be applied to drilling workpieces of various shapes, etc. Forms made with various changes based on the knowledge of those skilled in the art without departing from the main idea. can be configured with

[Brief explanation of drawings]

FIG. 1 is a front sectional view of a drilling device that is an embodiment of the present invention.

FIG. 2 is a bottom view of the device.

FIG. 3 is a cross-sectional view taken along III-III in FIG. 1;

FIG. 4 is an explanatory diagram of the operation of the device.

FIG. 5 is a partially cutaway front view of a vibration-proof rubber bushing shown to explain the background of the present invention.

FIG. 6 is an explanatory diagram of the problem to be solved by the present invention.

[Explanation of symbols]

10 Main body 12 Support 14 Fitting protrusion 16 Fitting recess 18 Spring 20 Stopper 26 dice 28 Punch 36 Discharge passage 38 Metal fittings

Claims (1)

[Scope of utility model registration request] Claim 1: (a) a punch and a die arranged to face each other so as to sandwich the processing part of the workpiece and to be able to approach and separate from each other; (b) a main body that holds the punch and the die; (c) The body is supported in a floating state so that it can move in the direction of approach and separation of the punch and die, so that when either the punch or the die is pressed against the workpiece, the reaction floating means that moves the other side toward the workpiece by force; and (d) a discharge passage that is connected to the opening of the die and is connected to a vacuum suction device, and that discharges chips from machining using vacuum suction force. A device for drilling holes in a metal fitting having an elastic lining layer, comprising: