Water-cooling stamping structure of stretching punch

Abstract

The utility model discloses a drawing punch water-cooling stamping structure, which belongs to the technical field of die stamping design and comprises an upper die plate and a lower die holder which are vertically arranged, a punch fixing seat is arranged in the upper die plate and used for fixing the upper portion of a drawing punch, a water pipe head is arranged in the upper portion of the drawing punch, and the lower portion of the water pipe head is connected with a water pipe. A cavity for containing a water pipe is formed in the stretching punch, a water inlet channel communicated with the upper end of the water pipe and a water outlet channel communicated with the upper portion of the cavity are formed in the upper die plate, the punch fixing base, the stretching punch and the water pipe head, a lower die plate is arranged on the lower die base, the lower die base is provided with an inner top, and a guide female die and a stretching female die are installed in the lower die plate. According to the die, the punch and the female die can be rapidly cooled, thermal expansion of a workpiece is prevented, the product size is guaranteed, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of water-cooled stamping structure of stretch punch, belong to die stamping design technical field. BACKGROUND

[0002] The working procedure of the existing stamping structure is as follows: the punch moves downward along with the punch press to extrude the material sheet into the concave die along the pilot concave die to form a product, and then the punch press moves upward, the punch is pulled out of the concave die and simultaneously pushes the product out of the concave die under the action of the lower die seat spring. The above-mentioned stamping structure forming structure is simple and easy to process, but the punch and the concave die will appear high temperature and thermal expansion phenomenon after long time use, which will affect the product size, and the work efficiency will be affected by stopping and cooling. UTILITY MODEL CONTENTS

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art, provide a water-cooled stamping structure of stretch punch, which can rapidly cool the punch and the concave die, prevent the workpiece from thermal expansion, ensure the product size, and improve the production efficiency.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] A water-cooled stamping structure of stretch punch, comprising an upper die plate and a lower die seat arranged in an up-down manner, a punch fixed seat is arranged in the upper die plate, the punch fixed seat is used for fixing the upper part of the stretch punch, a water pipe head is arranged in the upper part of the stretch punch, a water pipe is connected to the lower part of the water pipe head, a cavity for accommodating the water pipe is formed in the stretch punch, a water inlet channel in communication with the upper end of the water pipe and a water outlet channel in communication with the upper part of the cavity are formed in the upper die plate, the punch fixed seat, the stretch punch and the water pipe head, a lower die plate is arranged on the upper surface of the lower die seat, an inner top is arranged on the lower die seat, and a pilot concave die and a stretch concave die are installed in the lower die plate.

[0006] A stripper sleeve is arranged outside the stretch punch.

[0007] The shape of the water inlet channel and the water outlet channel is L-shaped.

[0008] The water inlet channel is located above the water outlet channel.

[0009] The material of the water pipe head and the water pipe is stainless steel.

[0010] The outer diameter of the water pipe is 10 mm, and the inner diameter is 7 mm.

[0011] Sealing rings are arranged between the water pipe head and the stretch punch and between the stretch punch and the punch fixed seat.

[0012] A water receiving head is connected to the outer end of the water inlet channel and the water outlet channel.

[0013] The utility model discloses a kind of water-cooled stamping structures of stretch punch, water pipe head is set in the upper portion of stretch punch, water pipe head lower portion is connected with water pipe, stretch punch is internally provided with the cavity accommodating water pipe, upper die plate, punch fixed seat, stretch punch and water pipe head are internally provided with the water inlet channel being communicated with the upper end of water pipe, and the water outlet channel being communicated with the upper portion of cavity, water cooler connects low-temperature high-pressure water into water inlet channel, with water pipe flows into the cavity in stretch punch, stretch punch is cooled, again from the upper portion of cavity by water outlet channel and is exported into water cooler cooling, realize cooling water circulation work, can be rapidly cooled to punch and female die, prevent workpiece thermal expansion, guarantee product size, improve production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structure diagram of the utility model a kind of stretch punch water-cooled stamping structure;

[0015] In the drawing, reference signs are as follows: 1-water pipe head;2-sealing ring;3-upper die plate;4-water inlet channel;5-water outlet channel;6-punch fixed seat;7-stretch punch;8-guide female die;9-stretch female die;10-lower die plate;11-product;12-inner top;13-lower die holder;14-removing sleeve;15-water pipe. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the drawings, and the following embodiment is only used to more clearly illustrate the technical scheme of the utility model, and cannot limit the protection scope of the utility model by this.

[0017] Embodiment 1

[0018] As Figure 1 shown, the utility model discloses a kind of water-cooled stamping structures of stretch punch, including upper and lower arranged upper die plate 3 and lower die holder 13, upper die plate 3 is provided with punch fixed seat 6, and punch fixed seat 6 is used to fix the upper portion of stretch punch 7, and water pipe head 1 is provided in the upper portion of stretch punch 7, and water pipe head 1 lower portion is connected with water pipe 15. Stretch punch 7 is internally provided with the cavity accommodating water pipe 15, and the cooling water that comes out from the lower portion of water pipe 15 fills the cavity, and stretch punch 7 is cooled down. Upper die plate 3, punch fixed seat 6, stretch punch 7 and water pipe head 1 are internally provided with the water inlet channel 4 being communicated with the upper end of water pipe 15, and the water outlet channel 5 being communicated with the upper portion of cavity. When cooling water comes in, it is in turn through upper die plate 3, punch fixed seat 6, stretch punch 7 and water pipe head 1, and when cooling water comes out, it is in turn through water pipe head 1, stretch punch 7, punch fixed seat 6 and upper die plate 3. Lower die holder 13 is provided with lower die plate 10 on top, and lower die holder 13 is provided with inner top 12, and lower die plate 10 is installed with guide female die 8 and stretch female die 9.

[0019] The utility model discloses a water cooler connects low temperature high pressure water into water channel 4, with the water pipe 15 flow into the stretch punch 7 inner cavity, the stretch punch 7 cooling, again from the cavity upper portion by water outlet channel 5 flow out and enter the water cooler cooling, realize the cooling water circulation work, can carry out the rapid cooling to stretch punch 7, and stretch punch 7 cooling also can give the guide concave die 8 and stretch concave die 9 cooling, prevent workpiece thermal expansion, guarantee product size, improve production efficiency.

[0020] Example 2

[0021] As Figure 1 The utility model discloses a stretch punch water cooling stamping structure, including the upper and lower setting upper die plate 3 and lower die seat 13, the upper die plate 3 is provided with punch fixed base 6, and the punch fixed base 6 is used for fixing the upper part of stretch punch 7, and stretch punch 7 is externally provided with the material removal sleeve 14. The water pipe head 1 is arranged in the upper part of stretch punch 7, and the water pipe 15 is connected to the lower part of water pipe head 1. The cavity for accommodating the water pipe 15 is formed in the stretch punch 7, and the cooling water from the lower part of the water pipe 15 can fill the cavity and cool the stretch punch 7. The upper die plate 3, the punch fixed base 6, the stretch punch 7 and the water pipe head 1 are provided with the water inlet channel 4 communicated with the upper end of the water pipe 15 and the water outlet channel 5 communicated with the upper part of the cavity. When the cooling water comes in, it passes through the upper die plate 3, the punch fixed base 6, the stretch punch 7 and the water pipe head 1 in sequence, and when the cooling water comes out, it passes through the water pipe head 1, the stretch punch 7, the punch fixed base 6 and the upper die plate 3 in sequence. The lower die seat 13 is provided with the lower die plate 10, and the lower die seat 13 is provided with the inner top 12, and the guide concave die 8 and the stretch concave die 9 are installed in the lower die plate 10.

[0022] In the utility model, the shape of water inlet channel 4 and water outlet channel 5 is L-shaped, and water inlet channel 4 is located above water outlet channel 5. The outer end of water inlet channel 4 and water outlet channel 5 is connected with water head, which is convenient for connecting with water cooler. The material of water pipe head 1 and water pipe 15 is stainless steel. In addition, the outer diameter of water pipe 15 is 10mm, and the inner diameter is 7mm. In addition, in order to guarantee the sealing property of structure, the sealing ring 2 is arranged between water pipe head 1 and stretch punch 7, and between stretch punch 7 and punch fixed base 6, which prevents the leakage of cooling water.

[0023] The stamping process of the utility model is as follows: the stretching punch 7 moves downward along with the punch to extrude the material sheet into the stretching die 9 along the number guide concave die 8 to form the product 11, then the punch moves upward, the stretching punch 7 is pulled out of the stretching die 9 and the inner top 12 pushes the product 11 out of the stretching die 9 under the action of the lower die seat spring at the same time, the stretching punch 7 moves upward to a certain position and the product 11 is stripped out of the stretching punch 7 through the stripping sleeve 14 to complete a stretching action, and at the same time in the whole stamping process, the water cooler connects the low-temperature high-pressure water into the water channel 4, the water pipe 15 flows into the inner cavity of the stretching punch 7, the stretching punch 7 is cooled, and then the water flows out from the upper part of the cavity through the water outlet channel 5 into the water cooler to be cooled, realizing the cooling water circulation work, the stretching punch 7 can be cooled rapidly, and the whole stamping process can continuously run.

[0024] The above is only the preferred embodiment of the utility model, and it should be pointed out that: for the ordinary skilled in the art, without departing from the principle of the utility model, a number of improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the utility model.

Claims

1. A water-cooled punch press structure for a stretch punch, characterized by: The utility model relates to a kind of water pipe head and water pipe for drawing die, including upper die plate (3) and lower die seat (13) arranged in upper and lower, the punch fixed seat (6) is arranged in the upper die plate (3), the upper punch fixed seat (6) is used to fix the upper portion of drawing punch (7), water pipe head (1) is arranged in the upper portion of drawing punch (7), water pipe (15) is connected in the lower portion of water pipe head (1), the cavity of drawing punch (7) is opened and arranged to accommodate water pipe (15), upper die plate (3), punch fixed seat (6), drawing punch (7) and water pipe head (1) are opened and arranged with the water inlet channel (4) that the upper end of water pipe (15) is communicated, and the water outlet channel (5) that the upper portion of cavity is communicated, lower die seat (13) is provided with lower die plate (10) on the upper surface, lower die seat (13) is provided with inner top (12), and guide concave die (8) and drawing concave die (9) are installed in lower die plate (10).

2. The stretch punch water-cooled punch structure according to claim 1, characterized by: The drawing punch (7) is externally sleeved with a material removal sleeve (14).

3. The stretch punch water-cooled punch structure of claim 1, wherein: The water inlet channel (4) and the water outlet channel (5) are both L-shaped.

4. The water-cooled punch structure of the stretch punch according to claim 3, characterized by: The water inlet channel (4) is above the water outlet channel (5).

5. The stretch punch water-cooled punch structure of claim 1, wherein: The water pipe head (1) and the water pipe (15) are made of stainless steel.

6. The stretch punch water-cooled punch structure of claim 1, wherein: The outer diameter of the water pipe (15) is 10 mm, and the inner diameter is 7 mm.

7. The stretch punch water-cooled punch structure of claim 1, wherein: Sealing rings (2) are provided between the water pipe head (1) and the drawing punch (7), and between the drawing punch (7) and the punch fixed seat (6).

8. The stretch punch water-cooled punch structure of claim 1, wherein: Water receiving heads are connected to the outer ends of the water inlet channel (4) and the water outlet channel (5).

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