Auxiliary tool for electrical discharge machining

Abstract

The utility model discloses an auxiliary tool for electric discharge machining, which is combined on a machine head of an electric discharge machining machine for use, and comprises an adjusting frame, the adjusting frame comprises a first connecting arm, a first adjusting arm, a second adjusting arm and a second connecting arm, the first connecting arm is connected with the first adjusting arm, and the second connecting arm is connected with the second adjusting arm. The first adjusting arm is connected with the second adjusting arm, the second adjusting arm is connected with the second connecting arm, and the first adjusting arm can be locked at different height positions of the second adjusting arm; the adapter is arranged on the first connecting arm, and the adapter is connected with the machine head; and the electrode is arranged on the second connecting arm, and the electrode faces downwards. The machining height of electric discharge machining can be adjusted, the device is suitable for machining and forming of oil way holes, threaded holes and the like of machined parts within a certain height range, the machining efficiency can be improved, and the production cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool accessories, in particular to an auxiliary tool for electric discharge machining. Background Art

[0002] In the processing of stamping dies, there will be processing oil holes and lifting screw holes on the side of the template. At this time, the template is in a high hardness state, and discharge machining is required to complete the processing of the oil holes and threaded holes. The corresponding discharge machining equipment, such as a fine-hole discharge machining machine disclosed in patent number CN217859197U, includes a workbench and a tool box. The workbench is arranged in a cylindrical shape, and a rotating groove is opened along the direction of its rotation diameter. A rotating bar is embedded in the rotating groove. A connecting plate is arranged at either end of the rotating bar, and a connecting groove is opened at the other end of the rotating bar. A first connecting hole is opened on the connecting plate, and a second connecting hole is opened on the rotating bar. A connecting rod is inserted in the first connecting hole and the second connecting hole. The connecting rod and the first connecting hole and the second connecting hole are both threadedly matched. The connecting rod is provided with a connecting ring plate, and the tool box is arranged on the rotating bar.

[0003] The problem with this type of equipment is that the processing height is fixed. For example, under the premise that the stroke of the EDM machine is 320mm, after the electrode is clamped, the maximum template that can be processed is within 290mm. For templates exceeding this height, it is necessary to purchase equipment with a larger processing stroke, which is too costly. Utility Model Content

[0004] The utility model aims to avoid the shortcomings of the prior art and provides an auxiliary tool for electric discharge machining with an adjustable machining stroke.

[0005] The utility model solves the technical problem by adopting the following technical solution: an auxiliary tool for electric discharge machining, which is used in combination with the head of an electric discharge machining machine, and the auxiliary tool comprises:

[0006] An adjustment frame, the adjustment frame comprising a first connecting arm, a first adjustment arm, a second adjustment arm, and a second connecting arm, the first connecting arm is connected to the first adjustment arm, the first adjustment arm is connected to the second adjustment arm, the second adjustment arm is connected to the second connecting arm, and the first adjustment arm can be locked at different heights of the second adjustment arm;

[0007] An adapter, the adapter is arranged on the first connecting arm, and the adapter is connected to the machine head;

[0008] The electrode is arranged on the second connecting arm and faces downward.

[0009] In several embodiments, the first connecting arm and the first adjusting arm are locked by a locking member, and the first connecting arm and the first adjusting arm can rotate 0-180° when not locked.

[0010] In several embodiments, a first groove is provided at one end of the first connecting arm connected to the first adjusting arm, an end of the first adjusting arm is disposed in the first groove, and an inner wall of the first groove can abut against a side surface of the first adjusting arm.

[0011] In several embodiments, the second connecting arm and the second adjusting arm are locked by a locking member, and the second connecting arm and the second adjusting arm can rotate 0-180° when not locked.

[0012] In several embodiments, a second groove is provided at one end of the second connecting arm connected to the second adjusting arm, an end of the second adjusting arm is disposed in the second groove, and an inner wall of the second groove can abut against a side surface of the second adjusting arm.

[0013] In several embodiments, an adjustment hole is provided on the first adjustment arm, and the adjustment holes are distributed along the length direction of the first adjustment arm. A guide block is fixedly provided on the second adjustment arm, and the guide block is inserted into the adjustment hole and can move along the adjustment hole. A locking piece is provided on the guide block, and the first adjustment arm and the second adjustment arm are locked by the locking piece.

[0014] In several embodiments, a step portion is protruded from the opposite ends of the first adjusting arm and the second adjusting arm, and the first adjusting arm and the second adjusting arm cannot pass through the step portion during movement.

[0015] In several embodiments, a support arm is further included, one end of the support arm is rotatably disposed on the first connecting arm, the other end of the support arm is rotatably disposed on the guide block, and locking members are disposed at both ends of the support arm.

[0016] The beneficial effects of the utility model are:

[0017] The utility model can adjust the processing height of the electric discharge machining, is suitable for the processing and forming of the oil passage holes and threaded holes of the machined parts within a certain height range, and can improve the processing efficiency and reduce the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are for illustrative purposes only of selected embodiments and do not represent all possible implementations, and should not be considered to limit the scope of the present invention.

[0019] Figure 1 The structure of an auxiliary tool for electric discharge machining combined with a machining device in one embodiment is schematically shown;

[0020] Figure 2 Schematically shows Figure 1 Part of the forward-looking structure;

[0021] Figure 3 Schematically shows Figure 1 The magnified structure of the auxiliary tool;

[0022] Figure 4 Schematically shows Figure 3 Partially exploded structure. DETAILED DESCRIPTION

[0023] Below, embodiments of the present invention are described in detail with reference to the accompanying drawings. To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in conjunction with the accompanying drawings is not intended to limit the scope of the present invention for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present invention.

[0025] like Figure 1 As shown, the auxiliary tool for electric discharge machining in this embodiment is used in combination with the head 1 of the electric discharge machining machine, and is mainly used to perform hole machining on the workpiece 3 placed on the workbench 2.

[0026] Specific, combined Figure 2-Figure 4 As shown, the auxiliary tool mainly includes an adjustment frame 10, an adapter 20 and an electrode 30. The adjustment frame 10 and the adapter 20 are made of steel material and are electrically connected to the head 1. The adapter 20 and the motor 30 are respectively arranged at the two ends of the adjustment frame 10, and the discharge hole is opened by the motor 30.

[0027] Among them, the adjustment frame 10 includes a first connecting arm 11 that can be set horizontally, a first adjusting arm 12 that can be set vertically, a second adjusting arm 13 that can be set vertically, a second connecting arm 14 that can be set horizontally, and an inclined support arm 15. The first connecting arm 11 is connected to the first adjusting arm 12, the first adjusting arm 12 is connected to the second adjusting arm 13, the second adjusting arm 13 is connected to the second connecting arm 14, and the first adjusting arm 12 can be locked at different heights of the second adjusting arm 13.

[0028] Among them, the first connecting arm 11 and the first adjusting arm 12 are locked by a locking piece 40, and the first connecting arm 11 and the first adjusting arm 12 can rotate 0-180° when not locked, and a first groove is provided at one end where the first connecting arm 11 and the first adjusting arm 12 are connected, and the end of the first adjusting arm 12 is provided in the first groove, and the inner wall of the first groove can abut against the side of the first adjusting arm 12. Through the limiting cooperation between the first groove and the side of the first adjusting arm 12, the rotation angle between the two does not exceed 180°, and the first adjusting arm 12 and the first connecting arm 11 can be locked and fixed in a vertical state.

[0029] In addition, the second connecting arm 14 and the second adjusting arm 13 are locked by a locking piece 40. The second connecting arm 14 and the second adjusting arm 13 can rotate 0-180° when not locked. A second groove 141 is provided at one end where the second connecting arm 14 and the second adjusting arm 13 are connected. The end of the second adjusting arm 13 is provided in the second groove 141. The inner wall of the second groove 141 can abut against the side surface of the second adjusting arm 13, that is, the connection structure between the second adjusting arm 13 and the second connecting arm 14 is consistent with the connection structure between the first adjusting arm 12 and the first connecting arm 11, and the effects achieved are also consistent.

[0030] In addition, an adjustment hole 121 is provided on the first adjustment arm 12, and the adjustment hole 121 is distributed along the length direction of the first adjustment arm 12. A guide block 131 is fixedly provided on the second adjustment arm 13, and the guide block 131 is inserted into the adjustment hole 121 and can move along the adjustment hole 121. A locking piece 40 is provided on the guide block 131, and the first adjustment arm 12 and the second adjustment arm 13 are locked by the locking piece 40.

[0031] Furthermore, a step portion 101 is protruded from the opposite end of the first adjusting arm 12 and the second adjusting arm 13, so that the first adjusting arm 12 and the second adjusting arm 13 form an L-shaped structure. Neither the first adjusting arm 12 nor the second adjusting arm 13 can pass through the step portion 101 during movement, and the end surfaces of the two are substantially located on the same plane after being combined.

[0032] At the same time, one end of the support arm 15 is rotatably set on the first connecting arm 11, and the other end of the support arm 15 is rotatably set on the guide block 131. Both ends of the support arm 15 are provided with long strip-shaped through holes 151, and locking pieces 40 are provided in the through holes 151. The inclination angle of the support arm 15 can be changed through the through holes 151 to cooperate with the height adjustment between the first adjustment arm 12 and the second adjustment arm 13.

[0033] Here, the locking member 40 includes a knob portion and a screw portion. By rotating the knob to drive the screw portion to rotate, the locking process of the locking member 40 can be realized, for example, the support arm 15 can be locked on the first connecting arm 11 and other parts locked by the locking member 40.

[0034] All the methods described herein can be performed in any suitable order. Any and all examples used, or exemplary language provided herein (such as "for example") are merely to better illustrate the present invention, and are not intended to limit the scope of the present invention, unless the claims are included. The language in the detailed description should not be understood as indicating any essential factors for practicing the present invention that are not claimed.

[0035] The present invention describes preferred embodiments, including the best way to carry out the present invention known to the inventor. Of course, variations of these preferred embodiments will be apparent to those skilled in the art. The inventors anticipate that skilled artisans may use such variations as appropriate, and the inventors point out that the present invention may be implemented in other ways than those specifically described herein. Therefore, the present invention includes all improvements included in the spirit and scope of the present invention as defined by the claims. Moreover, unless otherwise stated or clearly contradictory in content, the present invention includes any of the above factors and all possible variations thereof.

Claims

1. An auxiliary tool for electric discharge machining, used in combination with a head (1) of an electric discharge machining machine, characterized in that: The auxiliary tools include: An adjustment frame (10), the adjustment frame (10) comprising a first connecting arm (11), a first adjusting arm (12), a second adjusting arm (13), and a second connecting arm (14), the first connecting arm (11) being connected to the first adjusting arm (12), the first adjusting arm (12) being connected to the second adjusting arm (13), the second adjusting arm (13) being connected to the second connecting arm (14), and the first adjusting arm (12) being lockable at positions of different heights on the second adjusting arm (13); An adapter (20), the adapter (20) being arranged on the first connecting arm (11), and the adapter (20) being connected to the machine head (1); An electrode (30), wherein the electrode (30) is arranged on the second connecting arm (14), and the electrode (30) faces downward.

2. The auxiliary tool for electric discharge machining according to claim 1, characterized in that: The first connecting arm (11) and the first adjusting arm (12) are locked by a locking member (40); the first connecting arm (11) and the first adjusting arm (12) can rotate within the range of (0)-(180) degrees when not locked.

3. An auxiliary tool for electric discharge machining according to claim 2, characterized in that: A first groove is provided at one end of the first connecting arm (11) connected to the first adjusting arm (12); the end of the first adjusting arm (12) is arranged in the first groove; and the inner wall of the first groove can abut against the side surface of the first adjusting arm (12).

4. The auxiliary tool for electric discharge machining according to claim 3, characterized in that: The second connecting arm (14) and the second adjusting arm (13) are locked by a locking member (40); the second connecting arm (14) and the second adjusting arm (13) can rotate within an angle of (0)-(180) degrees when not locked.

5. The auxiliary tool for electric discharge machining according to claim 4, characterized in that: A second groove (141) is provided at one end of the second connecting arm (14) connected to the second adjusting arm (13); an end of the second adjusting arm (13) is arranged in the second groove (141); and an inner wall of the second groove (141) can abut against a side surface of the second adjusting arm (13).

6. The auxiliary tool for electric discharge machining according to claim 5, characterized in that: The first adjusting arm (12) is provided with an adjusting hole (121), and the adjusting hole (121) is distributed along the length direction of the first adjusting arm (12); the second adjusting arm (13) is fixedly provided with a guide block (131), and the guide block (131) is inserted into the adjusting hole (121) and can move along the adjusting hole (121); the guide block (131) is provided with a locking piece (40), and the first adjusting arm (12) and the second adjusting arm (13) are locked by the locking piece (40).

7. The auxiliary tool for electric discharge machining according to claim 6, characterized in that: The first adjusting arm (12) and the second adjusting arm (13) are each protrudingly provided with a step portion (101) at one of the opposite ends, and the first adjusting arm (12) and the second adjusting arm (13) cannot pass through the step portion (101) during movement.

8. The auxiliary tool for electric discharge machining according to claim 6, characterized in that: It also includes a support arm (15), one end of which is rotatably arranged on the first connecting arm (11), and the other end of which is rotatably arranged on the guide block (131), and both ends of the support arm (15) are provided with locking members (40).

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