A wire grip part press tool

Abstract

The utility model discloses a kind of wire connection handle parts profile tool, belong to mechanical processing technical field, including mandrel base, upper die, base, profile upper die, sliding block, base is made with strip groove and through groove, strip groove is inserted into mandrel base and is positioned, through groove is cooperated with profile upper die and sliding block, the recess of half ellipse is respectively made on the base between strip groove and through groove and the lower surface of upper die, and the convex rod on the mandrel base is formed elliptical flat with the cooperation of elliptical hole, two sliding blocks are formed trapezoidal block and the trapezoidal opening of profile upper die bottom cooperation with profiled handle flat and angle bevel.The utility model will not cause flanging cracking condition, processing efficiency is significantly improved, and parts qualified rate is high.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology and relates to a forming tool for wire handle parts. Background Technology

[0002] The structure of the connector parts is as follows Figure 1 As shown, one end is an elliptical flattened tube, that is, a tubular structure with an elliptical cross-section, and the other end is a flattened handle. The two ends are connected by two 45° angled bevels. It is required to use T4-M tubular material to press out a 45° angle and an elliptical shape. At present, it is mostly made by hand using a hammering method. This processing method is prone to cracking of raw materials and does not easily guarantee the shape of the parts, resulting in low processing efficiency. Utility Model Content

[0003] This utility model proposes a forming tool for wire handle parts. When used with a hydraulic press, it can ensure the forming effect, prevent edge cracking, and significantly improve processing efficiency.

[0004] The present invention adopts the following technical solution:

[0005] A forming tool for wire handle parts includes a mandrel base 1, an upper die 2, a base 3, a forming upper die 4, and a slider 5.

[0006] The upper surface of the base 3 is provided with parallel strip grooves and through grooves. The strip grooves are used to insert and position the mandrel base 1, and their shape is set according to the lower shape of the main structure of the mandrel base 1. The through grooves are used to cooperate with the upper die 4 and the slider 5. The width of the through grooves is the same as the width of the upper die 4 and the slider 5. The distance between the strip grooves and the through grooves is the same as the length of the elliptical flat part of the connector handle. A semi-elliptical groove is provided in the middle of the upper surface of the base 3 between the two grooves, which communicates with the two grooves. The shape of the groove is set according to the elliptical flat shape of the connector handle. Guide holes are provided on both sides of the groove.

[0007] The main structure of the spindle base 1 is a strip block that can be embedded in the strip groove of the base 3 for positioning. A protruding rod is made in the middle of one side of the spindle base 1. The outer dimensions of the protruding rod are set according to the elliptical flat inner hole of the connector part. The head is made with two 45° flat inclined surfaces, which are the same as the 45° angled inclined surfaces of the connector part. After the spindle base 1 is embedded in the base 3, the protruding rod falls into the groove on the base 3 and its head protrudes from the groove.

[0008] The upper mold 2 is elongated, with its width being the same as the distance between the two slots on the base 3. A semi-elliptical groove is formed in the middle of its bottom surface, which aligns with the groove on the base 3 to form an elliptical hole. The shape of this elliptical hole is designed according to the elliptical flat shape of the connector handle part. Holes are formed on both sides of the groove on the upper mold 2, and positioning pins are fixedly installed in the holes. The positioning pins extend downwards and cooperate with the guide holes on the base 3 to guide the upper mold 2 to move up and down. Under the guidance of the positioning pins, the upper mold 2 and the base 3 close together to press and form the elliptical flat shape of the connector handle part.

[0009] The upper die 4 is a strip-shaped block structure with a trapezoidal opening at the bottom. The upper die 4 is fitted with a through groove on the base 3, and the through groove limits the vertical movement of the upper die 4.

[0010] The slider 5 comprises two symmetrically arranged sliders that work together to form a trapezoidal block, which engages with the trapezoidal opening of the upper die 4. Each slider 5 has a 45° groove on one end near the mandrel base 1 on the opposite side. The upper die 4 moves downward to push the two sliders 5 to move relative to each other. The flat parts on the opposite sides of the two sliders 5 are pressed to form the handle flat of the wire handle part. The two 45° grooves engage with the 45° flat inclined surface at the end of the protrusion of the mandrel base 1 to press the two 45° angled inclined surfaces of the wire handle part.

[0011] The beneficial effects of this utility model are: when used with a hydraulic press, this utility model can ensure the forming effect, prevent edge cracking, significantly improve processing efficiency, and increase the part qualification rate. Attached Figure Description

[0012] Figure 1 The drawing shows the part of the connector handle, where (a) is the front view, (b) is the side view, and (c) is the AA sectional view.

[0013] Figure 2 A schematic diagram of the structure for pressing the elliptical flat portion (the 45° pressing portion is not shown).

[0014] Figure 3 This is a schematic diagram of the 45° pressing section (the pressed elliptical flat section is not shown).

[0015] Figure 4 This is a schematic diagram of the mandrel base.

[0016] Figure 5 This is a schematic diagram of the base.

[0017] Figure 6 This is a schematic diagram of the slider.

[0018] The components include: 1. mandrel base; 2. upper mold; 3. base; 4. forming upper mold; and 5. slider. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in detail below.

[0020] This utility model provides a forming tool for wire handle parts, such as Figure 2 and Figure 3 It includes a mandrel base 1, an upper mold 2, a base 3, a forming upper mold 4, a slider 5, and a positioning pin.

[0021] like Figure 5 The upper surface of the base 3 is provided with parallel strip grooves and through grooves. The strip grooves are used to insert and position the mandrel base 1. Their shape is set according to the lower shape of the main structure of the mandrel base 1. The through grooves are used to cooperate with the upper die 4 and the slider 5. The width of the through grooves is the same as the width of the upper die 4 and the slider 5. The distance between the strip grooves and the through grooves is the same as the length of the elliptical flat part of the connector handle. A semi-elliptical groove is provided in the middle of the upper surface of the base 3 between the two grooves. The shape of the groove is set according to the elliptical flat shape of the connector handle. Guide holes are provided on both sides of the groove.

[0022] like Figure 4 The main structure of the spindle base 1 is a strip block that can be embedded in the strip groove of the base 3 for positioning. A protruding rod is made in the middle of one side of the spindle base 1. The outer dimensions of the protruding rod are set according to the elliptical flat inner hole of the connector part. After the spindle base 1 is embedded in the base 3, the protruding rod falls into the groove on the base 3 and its head protrudes from the groove. The head of the protruding rod has two 45° flat inclined surfaces, which are the same as the 45° angle inclined surfaces of the connector part.

[0023] The upper mold 2 is elongated, with its width being the same as the distance between the two slots on the base 3. A semi-elliptical groove is formed in the middle of its bottom surface, which aligns with the groove on the base 3 to form an elliptical hole. The shape of this elliptical hole is designed according to the elliptical flat shape of the connector handle part. Holes are formed on both sides of the groove on the upper mold 2, and positioning pins are fixedly installed in the holes. The positioning pins extend downwards and cooperate with the guide holes on the base 3 to guide the upper mold 2 to move up and down. Under the guidance of the positioning pins, the upper mold 2 and the base 3 are closed to press and form the elliptical flat shape of the connector handle part.

[0024] The upper die 4 is a strip-shaped block structure with a trapezoidal opening at the bottom. The upper die 4 is fitted with a through groove on the base 3, and the through groove limits the vertical movement of the upper die 4.

[0025] like Figure 6The slider 5 comprises two symmetrically arranged blocks that work together to form a trapezoidal block, which engages with the trapezoidal opening of the upper die 4. Each of the two sliders 5 has a 45° groove on one end of its opposite side near the mandrel base 1. The upper die 4 moves downward to push the two sliders 5 to move relative to each other. The flat parts of the opposite sides of the two sliders 5 are pressed to form the handle flat of the wire handle part. The two 45° grooves engage with the 45° flat inclined surface at the end of the protrusion of the mandrel base 1 to press the two 45° angled inclined surfaces of the wire handle part.

[0026] The usage process in this embodiment is as follows:

[0027] 1) Insert the round tube blank of the connector handle into the protrusion of the mandrel base 1 until it fits the end face of the mandrel base 1. Use a hydraulic press to drive the upper mold 2 to press down under the guidance of the positioning pin. The groove of the upper mold 2 and the groove on the mandrel base 1 are closed. With the cooperation of the protrusion of the mandrel base 1, an elliptical flat part is made.

[0028] 2) Place the two sliders 5 into the through grooves of the base 3 from both sides, so that they are symmetrically placed on both sides of the wire handle round tube blank. Use the trapezoidal notch of the upper die 4 to press the upper ends of the two sliders 5. Note that the axis of the trapezoidal notch of the upper die 4 is consistent with the axis of the wire handle round tube blank.

[0029] 3) Driven by the hydraulic press, the upper die 4 presses down, causing the two sliders 5 to move relative to each other, squeezing the round tube blank of the wire handle, pressing and forming the handle flat of the wire handle part, and cooperating with the protruding head of the mandrel base 1 to press the two 45° angled slopes of the wire handle part.

[0030] 4) Finally, the remaining parts of the connector handle are machined using CNC milling or other methods.

[0031] In summary, the above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A forming tool for wire handle parts, characterized in that, It includes a mandrel base (1), an upper mold (2), a base (3), a forming upper mold (4), and a slider (5); The upper surface of the base (3) is provided with parallel strip grooves and through grooves. The strip grooves are set according to the lower part of the main structure of the mandrel base (1). The width of the through grooves is consistent with the width of the upper die (4) and the slider (5). The distance between the strip grooves and the through grooves is consistent with the length of the elliptical flat part of the connector. A semi-elliptical groove is provided in the middle of the upper surface of the base (3) between the two grooves, which communicates with the two grooves. The shape of the groove is set according to the elliptical flat shape of the connector. The main structure of the spindle base (1) is a strip block, which is embedded in the strip groove of the base (3) for positioning. A protruding rod is made in the middle of one side of the spindle base (1). The outer dimensions of the protruding rod are set according to the elliptical flat inner hole of the wire handle part. Two 45° flat inclined surfaces are made at the head. After the spindle base (1) is embedded in the base (3), the protruding rod falls into the groove on the base (3) and its head protrudes from the groove. The upper mold (2) is long and narrow, and its width is the same as the distance between the two grooves on the base (3). A semi-elliptical groove is made in the middle of its bottom surface, which matches the groove on the base (3) to form an elliptical hole. The shape of the elliptical hole is set according to the elliptical flat shape of the wire handle part. The upper die (4) is a strip-shaped block structure with a trapezoidal opening at the bottom. The upper die (4) is matched with the through groove on the base (3) for positioning. The slider (5) includes two symmetrically structured blocks that combine to form a trapezoidal block that matches the trapezoidal opening of the upper die (4). The two sliders (5) have 45° grooves on opposite sides near the mandrel base (1). The upper die (4) moves downward to push the two sliders (5) to move relative to each other. The flat parts on opposite sides of the two sliders (5) are pressed to form the handle flat of the wire handle part. The two 45° grooves match the 45° flat inclined surface at the end of the protrusion of the mandrel base (1) to press the two 45° angled inclined surfaces of the wire handle part.

2. The forming tool for a wire handle part according to claim 1, characterized in that, The base (3) has guide holes on both sides of the groove, and the upper mold (2) has holes on both sides of the groove. Positioning pins are fixedly installed in the holes. The positioning pins cooperate with the guide holes to realize the movement and guidance of the upper mold (2).

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