Mechanical short piece prevention mechanism for copper bar stamping die

Abstract

The utility model discloses a mechanical short piece prevention mechanism for a copper bar stamping die, which structurally comprises a lower die for bearing a copper bar, a die cavity arranged on the lower die, an upper die arranged above the lower die, and a first punch arranged at the bottom of the upper die and positioned right above the die cavity, a second punch is formed on the side, close to the feeding end of the die cavity, of the bottom of the upper die, and a short piece detection mechanism is further arranged on the upper die and located between the first punch and the second punch. The short piece detection mechanism is arranged and used for detecting whether cutting of the first punch is accurate or not, unqualified products in the machining process are removed in time, and the production quality is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to copper bar production technical field more specifically, it relates to a kind of for copper bar stamping die's mechanical short piece prevention mechanism. BACKGROUND

[0002] Copper bar is generally referred to as copper busbar, commonly used in motor winding and high-low voltage electrical appliances and other power fields, and common copper bar has excellent mechanical properties, electrical conductivity, thermal conductivity, corrosion resistance and plating, and with the development of China's economy, the demand for copper bar is increasing.

[0003] At present, the copper bar of commutator is usually made by stamping of copper bar after preliminary processing, when the copper bar is conveyed to the punch, since the copper bar cannot be conveyed to the accurate position sometimes, the copper bar produced in the stamping process does not meet the use standard, which affects the daily production of copper bar. UTILITY MODEL CONTENT

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a mechanical short piece prevention mechanism for copper bar stamping die to solve the above technical problems.

[0005] To achieve the above object, the utility model provides the following technical scheme: a mechanical short piece prevention mechanism for copper bar stamping die, comprising a lower die for bearing copper bar, a die groove opened on the lower die, an upper die arranged above the lower die, a first punch arranged at the bottom of the upper die and located directly above the die groove, a first blanking groove is formed at the corresponding position of the first punch on the lower die, a second punch is formed on the side of the die groove feeding end of the lower die, and a short piece detection mechanism is further arranged between the first punch and the second punch of the upper die.

[0006] The utility model is further provided as follows: the short piece detection mechanism comprises a groove formed on the lower surface of the upper die, a detection head slidingly arranged in the groove, and a spring member arranged between the inner end of the detection head and the inner bottom wall of the groove.

[0007] The utility model is further provided as follows: a matching groove is formed on the upper surface of the lower die at the corresponding position of the detection head.

[0008] The utility model is further provided as follows: a containing recess is formed on the side surface of the upper die, and a microswitch is arranged in the containing recess; a through groove is connected between the containing recess and the groove, and a jacking post is slidingly arranged in the through groove; one end of the jacking post cooperates with the microswitch, and the other end cooperates with the detection head.

[0009] The utility model is further provided as follows: an arc-shaped groove is formed at the cooperation position of the detection head and the jacking post.

[0010] The utility model is further provided as follows: a stop block is formed on the upper surface of the lower die at the side of the first blanking groove.

[0011] The utility model further sets up: the lower die upper surface is located second punch corresponding place and is formed with second blanking groove.

[0012] In conclusion, the utility model has the following beneficial effects: the utility model sets up short piece detection mechanism, is used to detect whether first punch cutting is accurate, timely removes the product that does not meet the use standard in processing process, guarantees production quality. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0014] Fig. 1 It is the whole structure schematic diagram of the utility model;

[0015] Fig. 2 It is the structure cross section schematic diagram of the utility model;

[0016] Fig. 3 It is the structure cross section schematic diagram of another angle of the utility model.

[0017] Reference signs: 1, lower die;10, die groove;11, matching groove;12, stop block;13, first blanking groove;14, second blanking groove;2, upper die;20, first punch;3, second punch;4, recess;40, detection head;41, spring piece;42, arc slot;5, accommodation recess;50, microswitch;51, through groove;52, jacking post. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model, obviously, the described embodiment only is a part of the embodiment of the utility model, instead of all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by ordinary skilled person in the art without making creative labor belong to the scope of protection of the utility model.

[0019] Please refer to Figs. 1-3As shown, the utility model discloses a kind of mechanical short piece prevention mechanisms for copper bar stamping die, including the lower die 1 for bearing copper bar, the die groove 10 being opened in lower die 1, the upper die 2 being located in the upper of lower die 1, the first punch 20 being located in the bottom of upper die 2 and being located in the just above of die groove 10, first blanking groove 13 is formed in the corresponding place of lower die 1 in first punch 20, second punch 3 is formed in the bottom of upper die 2 and is located in the one side of die groove 10 feeding end, short piece detection mechanism is further provided between first punch 20 and second punch 3 in upper die 2.

[0020] In use, start stamping equipment, copper bar material belt is sent by die groove 10 from left to right, upper die 2 drives first punch 20 and second punch 3 to press down, second punch 3 is punched in the gap groove on material belt, first punch 20 cuts copper bar and obtains copper bar piece, copper bar piece is blanked by first blanking groove 13 and is collected, short piece detection mechanism is further provided between first punch 20 and second punch 3 in upper die 2, short piece detection mechanism is used to detect whether first punch 20 cuts accurately, when first punch 20 cuts inaccurately, it will cause that copper bar piece is too short and produce product that does not meet the use standard.

[0021] Short piece detection mechanism includes recess 4 formed in the lower surface of upper die 2, detection head 40 slidingly arranged in recess 4, spring piece 41 is arranged between the inner end of detection head 40 and the inner bottom wall of recess 4;The upper surface of lower die 1 is formed with matching groove 11 in the corresponding place of detection head 40;Upper die 2 side is formed with accommodating recess 5 and is provided with microswitch 50 in accommodating recess 5, through groove 51 is connected between accommodating recess 5 and recess 4, and top column 52 is slidingly arranged in through groove 51, one end of top column 52 is matched with microswitch 50 and the other end is matched with detection head 40;Arc-shaped groove 42 is formed in the matching place of detection head 40 and top column 52.

[0022] In use, copper bar piece material belt is intermittently sent along die groove 10 from left to right by external feeding mechanism, second punch 3 is punched on material belt and produces gap groove, and then first punch 20 cuts material belt and obtains copper bar piece, when first punch 20 cuts accurately every time, detection head 40 is pressed down every time and corresponds to the gap groove of next copper bar piece, at this time, copper bar piece material belt will not cause the block of gap groove, when first punch 20 cuts inaccurately, the gap groove of next copper bar piece is misaligned with detection head 40, at this time, detection head 40 is blocked by copper bar piece material belt when being pressed down, detection head 40 is retracted into recess 4 by overcoming the force of spring piece 41, detection head 40 retraction causes top column 52 to exit arc-shaped groove 42, arc-shaped groove 42 initially presses microswitch 50 tightly by the other end of top column 52, at this time, microswitch 50 transmits signal to external control system, and the staff knows that the copper bar piece obtained by current cutting is unqualified product, and is rejected.

[0023] Spring piece 41 is fixedly connected with the inner end of detection head 40 and the inner bottom wall of recess 4 respectively,

[0024] The lower die 1 upper surface is formed with a stopper 12 on the side of the first blanking groove 13.

[0025] In use, the stopper 12 blocks the copper bar piece material belt to ensure accurate cutting of the first punch 20.

[0026] The lower die 1 upper surface is formed with a second blanking groove 14 corresponding to the second punch 3.

[0027] In use, the second blanking groove 14 guides and collects the waste produced by the notch groove cutting.

[0028] The electrical components appearing in this document are all connected with the main controller and 220V mains electricity, and the main controller can be a computer or other conventional known device that can be controlled.

[0029] At the same time, it needs to be pointed out that the terms such as "front", "back", "vertical", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the protection scope of the utility model.

[0030] The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited to the above-mentioned embodiments, and any technical solution falling within the concept of the utility model belongs to the protection scope of the utility model. It should be noted that for ordinary technical personnel in the technical field, some improvements and decorations without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A mechanical anti-short-piece mechanism for a copper busbar stamping die, comprising a lower die (1) for carrying the copper busbar, a die groove (10) formed on the lower die (1), an upper die (2) disposed above the lower die (1), and a first punch (20) disposed at the bottom of the upper die (2) and directly above the die groove (10), characterized in that: The lower die (1) is provided with a first blanking groove (13) at the position corresponding to the first punch (20), the upper die (2) is provided with a second punch (3) at the bottom near the side of the feeding end of the die groove (10), and the upper die (2) is further provided with a short piece detection mechanism between the first punch (20) and the second punch (3).

2. The mechanical anti-short feature for a copper bar stamping die of claim 1, wherein: The short piece detection mechanism comprises a groove (4) formed on the lower surface of the upper die (2), and a detection head (40) slidingly arranged in the groove (4), wherein a spring member (41) is arranged between the inner end of the detection head (40) and the bottom wall of the groove (4).

3. The mechanical anti-short mechanism for a copper bar stamping die according to claim 2, characterized in that: The upper surface of the lower die (1) is provided with a matching groove (11) at the position corresponding to the detection head (40).

4. The mechanical anti-short mechanism for a copper bar stamping die according to claim 2, characterized in that: The side surface of the upper die (2) is provided with a containing recess (5) and a micro switch (50) arranged in the containing recess (5), a through groove (51) is connected between the containing recess (5) and the groove (4), and a jacking column (52) is slidingly arranged in the through groove (51), one end of the jacking column (52) is matched with the micro switch (50), and the other end is matched with the detection head (40).

5. The mechanical anti-short feature for a copper bar stamping die of claim 4, wherein: The position where the detection head (40) is matched with the jacking column (52) is provided with an arc-shaped groove (42).

6. The mechanical anti-short feature for a copper bar stamping die of claim 1, wherein: The upper surface of the lower die (1) is provided with a stop block (12) at the side of the first blanking groove (13).

7. The mechanical anti-short feature for a copper bar stamping die of claim 1, wherein: The upper surface of the lower die (1) is provided with a second blanking groove (14) at the position corresponding to the second punch (3). The upper surface of the lower die (1) is provided with a stop block (12) at the side of the first blanking groove (13). The upper surface of the lower die (1) is provided with a second blanking groove (14) at the position corresponding to the second punch (3).

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