Hot melting plastic pin fixing device

Abstract

The utility model discloses a hot melting plastic pin fixing device, which comprises a workpiece and a fixing mechanism, the fixing mechanism comprises a first bending piece, a second bending piece and a fixing piece, the first bending piece, the second bending piece and the fixing piece respectively abut against the A surface, the B surface and the C surface of the workpiece, and a transverse moving plate is arranged on one side, far away from the workpiece, of the second bending piece. The first bending piece, the transverse moving plate, the second bending piece and the fixing piece can move along the X axis and the Y axis, after a workpiece is fixed to the end of the fixing piece, a pin of the workpiece is vertically upward, at the moment, the air cylinder bends the pin by 90 degrees through the first bending piece, then the second bending piece bends the pin by 90 degrees again, the pin is made to be in a U shape, and therefore the pin can be bent by 90 degrees again. And finally, the shell of the workpiece is heated through the transverse moving plate, so that the shell is deformed to clamp the pin, the pin is prevented from rebounding after the first bending piece, the transverse moving plate, the second bending piece and the fixing piece are separated, the reject ratio of original production is reduced to 0.1% from 30%, and the yield and the production efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the industrial connector nonstandard automation technical field especially relates to hot melt plastic pin needle fixing device. BACKGROUND

[0002] The design purpose of the connector terminal (also called as wiring terminal or contact terminal) bending is to improve the reliability of electrical connection, mechanical strength and adaptability in specific application. In the production process, the bent terminal design can simplify the production steps, especially in batch production, the bending design can better automate production, reduce production cost and time.

[0003] The existing production equipment will cause the terminal to rebound, separate from the pin slot and run out of position when bending the terminal of the connector, which will eventually cause the pin needle to be skewed and further affect the yield of the product. Therefore, we propose a hot melt plastic pin needle fixing device. UTILITY MODEL CONTENTS

[0004] In view of the problems in the prior art, the utility model provides the following technical scheme:

[0005] The hot melt plastic pin needle fixing device comprises a workpiece and a fixing mechanism, the fixing mechanism comprises a first bending piece, a second bending piece and a fixing piece, the first bending piece, the second bending piece and the fixing piece respectively abut against the A face, the B face and the C face of the workpiece, a horizontal moving plate is arranged on the side, away from the workpiece, of the second bending piece, and the horizontal moving plate abuts against the workpiece through the second bending piece when hot melting.

[0006] As a preferred technical scheme of the above technical scheme, the A face of the workpiece is provided with a first pin slot, a first insertion slot, which is in interference fit with the workpiece, is arranged on the side, close to the workpiece, of the first bending piece, and a first pressing block is arranged on the side wall of the first insertion slot and is inserted into the first pin slot.

[0007] As a preferred technical scheme of the above technical scheme, the B face of the workpiece is provided with hot melt plastic, a second pin slot is arranged between two adjacent hot melt plastics, a heating element is fixedly connected to the side, close to the workpiece, of the horizontal moving plate, and a metal strip is fixedly connected to the side of the heating element.

[0008] As a preferred technical scheme of the above technical scheme, a second insertion slot is arranged on the side, close to the workpiece, of the second bending piece, the second insertion slot is located between the metal strip and the hot melt plastic, a fixing part is arranged on the outside of the workpiece, and the fixing part is in interference fit with the second bending piece.

[0009] As a preferred technical scheme of the above technical scheme, the C face of the workpiece is provided with a third pin slot, and a second pressing block, which is in interference fit with the third pin slot, is arranged on the side, close to the workpiece, of the fixing piece.

[0010] The utility model discloses the beneficial effect is:

[0011] 1, the utility model discloses first bending piece, horizontal shift board, second bending piece and fixed part can move along X, Y double axle, after the workpiece is fixed at the end of fixed part, the pin needle of workpiece is perpendicular to upward, the pin needle is bent 90 degrees by first bending piece when this air cylinder, then second bending piece bends the pin needle 90 degrees again, makes the pin needle show " U " shape, finally through the shell heating of horizontal shift board to workpiece, makes it deform and pin needle jam, prevent first bending piece, horizontal shift board, second bending piece, fixed part separate after pin needle rebound, reduce to 0.1% from 30% of the original production bad rate, improve the pass rate and production efficiency simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 Show the structure schematic diagram of hot melt plastic pin needle fixing device in the embodiment;

[0013] Figure 2 Show the explosion schematic diagram of hot melt plastic pin needle fixing device in the embodiment;

[0014] Figure 3 Show the structure schematic diagram of workpiece and horizontal shift board in the embodiment.

[0015] BRIEF DESCRIPTION OF DRAWINGS

[0016] 1, workpiece;12, first pin slot;13, hot melt plastic;14, second pin slot;15, fixed part;16, third pin slot;2, first bending piece;21, first insertion slot;22, first pressing block;3, horizontal shift board;31, heating element;32, metal strip;4, second bending piece;41, second insertion slot;5, fixed part;51, second pressing block. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the utility model technical scheme will be described clearly and completely below with the embodiment.

[0018] EMBODIMENT

[0019] As Figure 1 , Figure 2 and Figure 3 Show, hot melt plastic pin needle fixing device, including workpiece 1 and fixed mechanism, fixed mechanism includes first bending piece 2, second bending piece 4 and fixed part 5, first bending piece 2, second bending piece 4, fixed part 5 respectively with the A, B, C face of workpiece 1 resist touch, the side away from workpiece 1 of second bending piece 4 is provided with horizontal shift board 3, when hot plastic, horizontal shift board 3 penetrates second bending piece 4 and workpiece 1 resist touch.

[0020] Specifically, the first bending piece 2, the horizontal moving plate 3, the second bending piece 4 and the fixing piece 5 are all installed with air cylinders, and the first bending piece 2, the horizontal moving plate 3, the second bending piece 4 and the fixing piece 5 can all move along the X and Y axes, after the workpiece 1 is fixed at the end of the fixing piece 5, the pin needle of the workpiece 1 is vertically upward, at this time, the air cylinder bends the pin needle 90° through the first bending piece 2, then the second bending piece 4 bends the pin needle 90° again, so that the pin needle is in the shape of "U", finally, the horizontal moving plate 3 heats the shell of the workpiece 1, so that the pin needle is stuck, preventing the pin needle from rebounding after the first bending piece 2, the horizontal moving plate 3, the second bending piece 4 and the fixing piece 5 are separated, reducing the original production rejection rate from 30% to 0.1%, and improving the good product rate and production efficiency.

[0021] As shown in Figure 2 , the A surface of the workpiece 1 is provided with a first pin slot 12, the side close to the workpiece 1 of the first bending piece 2 is provided with a first insertion slot 21 in interference fit with the workpiece 1, the side wall of the first insertion slot 21 is provided with a first pressing block 22, and the first pressing block 22 is inserted with the first pin slot 12.

[0022] Specifically, the first bending piece 2 first moves from top to bottom, when the first pressing block 22 and the first pin slot 12 are located at the same horizontal plane, it stops moving downward, then moves left to bend the vertical pin needle 90°, so that it enters the inside of the first pin slot 12, at this time, the pin needle is fixed in the first pin slot 12 through the cooperation of the first pressing block 22 and the first pin slot 12.

[0023] As shown in Figure 3 , the B surface of the workpiece 1 is provided with hot melt plastic 13, the second pin slot 14 is arranged between two adjacent hot melt plastic 13, the side close to the workpiece 1 of the horizontal moving plate 3 is fixedly connected with a heating element 31, and the side of the heating element 31 is fixedly connected with a metal strip 32.

[0024] As shown in Figure 2 and Figure 3 , the side close to the workpiece 1 of the second bending piece 4 is provided with a second insertion slot 41, the second insertion slot 41 is located between the metal strip 32 and the hot melt plastic 13, and the outside of the workpiece 1 is provided with a fixing part 15 in interference fit with the second bending piece 4.

[0025] Specifically, the second bending member 4 first moves from top to bottom, stops moving downward when the second slot 41 is at the same horizontal plane as the hot-melt plastic 13, then moves right to bend the vertical pin needle 90° into the second pin slot 14, and then the heating element 31 and the metal strip 32 pass through the second slot 41 and abut against the hot-melt plastic 13. By heating the hot-melt plastic 13 to cause thermal deformation, the first bending member 2, the horizontal moving plate 3, the second bending member 4, and the fixing member 5 can firmly fix the pin needle after moving away from the workpiece 1.

[0026] As shown in Figure 2 the C surface of the workpiece 1 is provided with a third pin slot 16, and the side of the fixing member 5 close to the workpiece 1 is provided with a second pressing block 51 in interference fit with the third pin slot 16.

[0027] Specifically, the workpiece 1 can be fixed on the end of the fixing member 5 through the cooperation of the second pressing block 51 and the third pin slot 16, and then the pin needle is bent through the first bending member 2, the second bending member 4, and the horizontal moving plate 3 in sequence.

[0028] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them.

Claims

1. Hot melt plastic pin fixing device, comprising a workpiece (1) and a fixing mechanism, characterized in that: The fixing mechanism comprises a first bending piece (2), a second bending piece (4) and a fixing piece (5), the first bending piece (2), the second bending piece (4) and the fixing piece (5) are respectively in contact with the A, B and C surfaces of the workpiece (1), the second bending piece (4) is provided with a transverse plate (3) away from the workpiece (1), and the transverse plate (3) penetrates through the second bending piece (4) and is in contact with the workpiece (1) when hot melting.

2. The hot melt plastic pinning device of claim 1, wherein, The A surface of the workpiece (1) is provided with a first pin slot (12), the side of the first bending piece (2) close to the workpiece (1) is provided with a first insertion slot (21) in interference fit with the workpiece (1), and the side wall of the first insertion slot (21) is provided with a first pressing block (22), and the first pressing block (22) is inserted into the first pin slot (12).

3. The hot melt plastic pinning device of claim 1, wherein, The B surface of the workpiece (1) is provided with hot melting plastic (13), two adjacent hot melting plastics (13) are provided with a second pin slot (14), the side of the transverse plate (3) close to the workpiece (1) is fixedly connected with a heating element (31), and the side of the heating element (31) is fixedly connected with a metal strip (32).

4. The hot melt plastic pinning device of claim 3, wherein, The side of the second bending piece (4) close to the workpiece (1) is provided with a second insertion slot (41), the second insertion slot (41) is located between the metal strip (32) and the hot melting plastic (13), and the outer side of the workpiece (1) is provided with a fixing portion (15) in interference fit with the second bending piece (4).

5. The hot melt plastic pinning device of claim 1, wherein, The C surface of the workpiece (1) is provided with a third pin slot (16), and the side of the fixing piece (5) close to the workpiece (1) is provided with a second pressing block (51) in interference fit with the third pin slot (16).

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