CN106994486B - A kind of shaping dies of input rack claw shaped piece - Google Patents

Abstract

The present invention proposes a forming die for the claw-shaped part of the input bracket, which includes: an upper die base; an upper punch, the upper punch is arranged below the upper die base; an upper die sleeve, the upper die The sleeve is located above the upper punch to fix the upper punch; the lower die base; the guide column is fixedly connected to the lower die base; the forming die is sleeved On the guide column, a forming cavity matching the shape of the input bracket claw to be formed is formed in the forming die; the upper punch is coaxially arranged with the guide column, and the upper The punch is able to contact the guide post as it moves downwards. The forming die of the claw-shaped part of the input bracket proposed by the present invention realizes extrusion molding of the claw-shaped part of the input bracket through material flow. Compared with the prior art, the invention significantly shortens the production cycle of the product and reduces the production cost of the product.

Description

A forming die for input bracket claws

technical field

The invention relates to the field of molds, in particular to a forming mold for input bracket claws.

Background technique

Input bracket claws, referred to as claws, are important parts in automobiles. At the same time, due to their large usage, the economy of the manufacturing process is also an important consideration.

As shown in FIG. 1 , it shows a typical bracket claw, which includes a circular bottom surface 1 , and four hook portions 2 perpendicular to the circular bottom surface 1 are arranged around the circumference of the circular bottom surface 1 .

In the prior art, the claws are generally processed by turning. Turning processing has the following technical defects: 1. The tool consumption is large and the processing time is long; 2. Burrs are formed on the cross-section of the product; 3. A large amount of waste is generated.

Contents of the invention

In order to solve the problems of the technologies described above, the present invention proposes a forming die for inputting the bracket claw, and its technical scheme is as follows:

A forming die for an input bracket claw, characterized in that it includes: an upper die base; an upper punch, the upper punch is arranged below the upper die base; an upper die sleeve, the upper die The sleeve is located above the upper punch to fix the upper punch; the lower die base; the guide column is fixedly connected to the lower die base; the forming die is sleeved On the guide column, a forming cavity matching the shape of the input bracket claw to be formed is formed in the forming die; the upper punch is arranged coaxially with the guide column, and the upper The punch is able to contact the guide post as it moves downwards.

In a specific embodiment, the upper die sleeve is connected to the upper die base by bolts, the upper end of the upper punch is fixed and connected in the upper die sleeve by a lock nut, and the upper punch A pressure block is stuffed between the upper mold base and the upper mold base.

In a specific embodiment, the guide column includes an integrally formed column body and a base, the forming die is a cup-shaped structure with an open upper end, and the bottom of the forming die is formed with a column body that is compatible with the guide post. The outer diameter matches the installation hole, and the forming die is sleeved on the cylinder of the guide column through the installation hole and can move up and down along the cylinder.

In a specific embodiment, the top of the guide column is formed with an inclined surface, and several wedge-shaped work pieces are arranged in the forming die, and the wedge-shaped work pieces fit on the inclined surface and can move along the inclined surface. The inclined surface slides up and down; when the wedge-shaped work piece slides down to a predetermined position, the forming die, the wedge-shaped work piece and the guide column encircle and form the forming die cavity.

In a specific embodiment, it also includes a limiting sleeve, the lower end of which is fixedly connected to the base of the guide column, and the forming die is passed through the limiting sleeve.

In a specific embodiment, a floating spring is provided between the lower end of the forming die and the base of the guide post, and the forming die can float up and down along the guide post.

In a specific embodiment, the base of the guide column is formed with a first stepped portion, a second stepped portion and a third stepped portion from bottom to top, and a fourth stepped portion protruding outward is formed at the lower end of the forming die. Step portion, the upper end of the limit sleeve is formed with a fifth step portion protruding inward; the lower end of the limit sleeve is connected to the first step portion, and one end of the floating spring is connected to the formed concave The molds are in conflict with each other, and the other end is in conflict with the second step; when the forming die floats up to the first predetermined position, the fourth step and the fifth step engage to limit the The forming die continues to float upwards; when the forming die floats downward to the second predetermined position, the lower end surface of the forming die engages with the third step portion to restrict the forming die from continuing to float down.

In a specific embodiment, a material withdrawal hole penetrating through the guide column is formed in the guide column in the axial direction, a material withdrawal rod is arranged in the material withdrawal hole, and the material withdrawal can be made along the The hole moves up and down, and when it moves up, it can stretch out the top of the ejector rod.

In a specific embodiment, the side wall of the forming die is provided with several reset holes along the circumference, and hollow guide pins are pierced in the reset holes, and hexagon socket bolts and socket head bolts are installed in the guide pins. Return spring, one end of the return spring is in conflict with the nut of the hexagon socket bolt, and the screw of the hexagon socket bolt is in conflict with the wedge-shaped work piece; when the return spring is pressed, the hexagon socket The bolt presses the wedge-shaped working part inward, so that the wedge-shaped working part slides upward along the inclined surface at the top of the guide post.

In a specific embodiment, a fixing flange is provided at the outer opening of the positioning hole, and a reset bolt is installed on the fixing flange, and the reset bolt extends into the reset hole and connects with the reset spring. contradicts the other end.

The forming die of the claw-shaped part of the input bracket proposed by the present invention realizes extrusion molding of the claw-shaped part of the input bracket through material flow. Compared with the prior art, the invention obviously shortens the production cycle of the product and reduces the production cost of the product.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly describe the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts. in:

Fig. 1 is a schematic structural view of an input bracket claw;

Fig. 2 and Fig. 3 are the structural representations of the forming mold of the input bracket claw-shaped part proposed by the present invention;

FIG. 4 is a partially enlarged view of area C in FIG. 2 .

Detailed ways

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figures 2 to 4, in a specific example, the forming die of the input bracket claw provided by the present invention includes an upper die base 1, a pressure block 3, an upper die sleeve 4, an upper punch 6, a forming Parts such as die 7, guide post 10, limit sleeve 11, ejector rod 12, floating spring 13, lower mold base 15.

The upper die cover 4 is fixedly connected to the lower surface of the upper die base 1 via bolts 2, the upper end of the upper punch 6 is pierced and fixed in the upper die cover 4, and the upper punch 6 is connected to the upper die cover 4. The pressure blocks 3 are stuffed between the upper mold bases 1 . In order to prevent the pressure block 3 and the upper punch 6 from slipping down from the upper die sleeve 4 , in this embodiment, the upper punch 6 and the upper die sleeve 4 are locked by the locking nut 5 .

The guide column 10 includes an integrally formed column body and a base. The forming die 7 is a cup-shaped structure, the bottom of which is formed with an installation hole matching the outer diameter of the guide post 10 . The forming die 7 is sleeved on the cylinder of the guide column 10 through the installation hole at the bottom thereof and can move up and down along the guide column 10 .

It can be seen that the inner wall of the forming die 7 and the outer wall of the guide column 10 enclose an "inverted cup-shaped" accommodating cavity. In order to construct a forming die cavity in the receiving cavity that matches the shape of the input bracket claw to be formed. In this embodiment, the top of the guide column 10 is formed with an inclined surface, and four wedge-shaped work pieces 9 are arranged in the accommodating cavity, and the wedge-shaped work pieces 9 fit on the inclined surface and can move along the inclined surface. Swipe up and down. When the wedge-shaped work piece 9 slides down to contact with the bottom of the die 7, the upper end of the forming die 7, the wedge-shaped work piece 9 and the guide post 10 will be enclosed with four parts to be formed. The shape of the input bracket claw (refer to Figure 1) matches the shape of the forming cavity.

As shown in FIG. 4 , in order to take out the wedge-shaped work piece 9 conveniently. In this embodiment, the side wall of the forming die 7 is provided with four reset holes corresponding to the wedge-shaped work piece 9 along the circumference, and a hollow guide pin 16 is pierced in the reset hole. Hexagon socket bolt 21 and back-moving spring 20 are installed in described guide pin 16, and one end of described back-moving spring 20 conflicts with the nut of described hexagon socket bolt 21, and the screw rod of described hexagon socket bolt 21 and described wedge work Item 9 contradicts. When the return spring 20 is pressed, the hexagon socket bolt 21 presses the wedge-shaped working part 9 inwardly, so that the wedge-shaped working part 9 slides upward along the inclined surface at the top of the guide post 10 .

The outer opening of the reset hole is provided with a fixed flange 18, and the fixed flange 18 is installed on the side wall of the forming die 7 via bolts 17, and a reset is installed on the middle hole of the fixed flange 18. Bolt 19 , the rod of the reset bolt 19 protrudes into the reset hole and interferes with the other end of the reset spring 20 . When the reset bolt 19 presses inward, the return spring 20 is compressed, so that the hexagon socket bolt 21 presses the wedge-shaped working part 9 inwardly.

The base of the guide column 10 is formed with a first step portion 101 , a second step portion 102 and a third step portion 103 from bottom to top. A fourth stepped portion 71 protruding outward is formed at the lower end of the forming die 7 . The upper end of the limiting sleeve 11 is formed with a fifth stepped portion 111 that protrudes inward and matches the fourth stepped portion 71 , and the lower end of the limiting sleeve 11 is formed with a fifth stepped portion 111 that is compatible with the first stepped portion 101 . Matching sixth step portion 112 .

The sixth step portion 112 of the limiting sleeve 11 engages with the first step portion 101 on the base of the guide column 10 and is fixed on the lower mold base 15 via bolts 14 .

The floating spring 13 is arranged between the base of the forming die 7 and the guide post 10, its upper end is in contact with the lower end surface of the forming die 7, and its lower end is in contact with the second spring on the base. The stepped portion 101 is in conflict with each other. The floating spring 13 is used to support the forming die 7 and enable the forming die 7 to float up and down along the limiting sleeve 11 .

When the floating spring 13 floats up to the first predetermined position, the fourth step portion 71 engages with the fifth step portion 111 to limit the floating spring 13 from floating upward; when the floating spring 13 moves downward When floating to the second predetermined position, the lower end surface of the forming die 7 engages with the third step portion 103 to restrict the floating spring from further floating downward.

The guide column 10 is formed with a material withdrawal hole that runs through the guide column 10, and a material withdrawal rod 12 is arranged in the material withdrawal hole, and the material withdrawal rod 12 can move up and down along the material withdrawal hole. When moving upward, the top end of the guide post 10 can be extended.

Please continue to refer to shown in Figure 2, the specific use process of the forming die of the input bracket claw provided by this embodiment is as follows:

1. The upper die base 1 moves upwards, so that a large installation distance is maintained between the upper punch 6 and the forming die 7, and the four wedge-shaped workpieces 9 are evenly inserted into the top of the guide column 10 and the forming die 7 along the circumferential direction. 7, and adjust the angle of the wedge-shaped work piece 9 so that the wedge-shaped work piece 9 fits the inclined surface of the upper end of the guide post 10.

Now wedge-shaped work piece 9 is in initial position, and its upper end is higher than the upper end surface of described guide column 10, and its lower end keeps a certain distance with the bottom of described forming die 7, and its outer wall and described forming die 7 The inner wall maintains a gap.

2. Place the blank 8 on the wedge-shaped work piece 9 , and then control the movement of the upper punch 6 so that the punch 6 collides with the blank 8 . Continuing to control the upper punch 6 to move downward, the forming die 7 starts to float downward, and finally reaches the second predetermined position.

3. Continue to control the downward extrusion of the upper punch 6, and the wedge-shaped work piece 9 slides down along the inclined surface of the upper end of the guide column 10 until its lower end collides with the bottom of the forming die 7 . At this time, the wedge-shaped work piece 9 is in the working position, its upper end is flush with the upper end surface of the guide column 10 , and its outer wall is in close contact with the inner wall of the forming die 7 . A forming die cavity matching the shape of the output bracket claw to be formed is formed in the forming die 7 .

4. Control the upper punch 6 to continue to squeeze downward, and part of the material in the blank 8 starts to flow downward and fill the gap between adjacent wedge-shaped workpieces 9 to form four corresponding claws.

5. After the extrusion is completed, the upper die base 1 drives the upper punch 6 to move upward to the initial position. The floating spring 13 resets, so that the forming punch 7 floats upward to the first predetermined position. At this time, the reset bolt 19 is screwed inward, so that the wedge-shaped working part 9 returns to the initial position.

6. Finally, control the ejection rod 12 to move upward and protrude from the top of the guide column 10 to eject the formed blank.

The foregoing has described the invention in sufficient detail with some particularity. Those skilled in the art should understand that the descriptions in the embodiments are only exemplary, and all changes made without departing from the true spirit and scope of the present invention should fall within the protection scope of the present invention. The protection scope of the present invention is defined by the claims rather than the above description in the embodiments.

Claims (8)

1. A forming die for inputting a bracket claw, is characterized in that it comprises: upper die seat; An upper punch, the upper punch is arranged below the upper die base; An upper die set, the upper die set is located above the upper punch for fixing the upper punch; Lower mold seat; a guide column, the guide column is fixedly connected to the lower mold base; A forming die, the forming die is sleeved on the guide column, and a forming cavity matching the shape of the input bracket claw to be formed is formed in the forming die; The upper punch is arranged coaxially with the guide column, and the upper punch can contact the guide column when moving downward; The guide column includes an integrally formed cylinder and base, the forming die is a cup-shaped structure with an open upper end, and the bottom of the forming die is formed with a mounting bracket that matches the outer diameter of the guide post. hole, the forming die is sleeved on the cylinder of the guide column through the installation hole and can move up and down along the cylinder; The top of the column body of the guide column is formed with an inclined surface, and several wedge-shaped workpieces are arranged in the forming die, and the wedge-shaped workpieces fit on the inclined surface and can slide up and down along the inclined surface; When the wedge-shaped work piece slides down to a predetermined position, the forming cavity is surrounded by the forming die, the wedge-shaped work piece and the guide column. 2. The forming die of the claw-shaped part of the input bracket as claimed in claim 1, wherein the upper die sleeve is connected to the upper die base by bolts, and the upper end of the upper punch is fixed by a lock nut A pressure block is inserted between the upper punch and the upper die base to pass through the upper die sleeve. 3. The forming die of the claw-shaped part of the input bracket as claimed in claim 1, wherein it also includes a limit sleeve, the lower end of the limit sleeve is fixedly connected to the base of the guide column, and the forming The die is passed through the spacer sleeve. 4. The forming die of the input bracket claw as claimed in claim 3, wherein a floating spring is arranged between the lower end of the forming die and the base of the guide post, and the forming die can move along the The guide column floats up and down. 5. The forming die of the input bracket claw as claimed in claim 4, characterized in that: The base of the guide column is formed with a first step, a second step and a third step from bottom to top, and a fourth step protruding outward is formed at the lower end of the forming die. A fifth stepped portion protruding inward is formed on the upper end of the sleeve; The lower end of the limiting sleeve is connected to the first step, one end of the floating spring is in conflict with the forming die, and the other end is in conflict with the second step; When the forming die floats up to the first predetermined position, the fourth step part and the fifth step part engage to restrict the forming die from continuing to float up; When the forming die floats downward to the second predetermined position, the lower end surface of the forming die engages with the third step portion to restrict the forming die from continuing to float downward. 6. The molding die for the claw-shaped part of the input bracket according to claim 1, wherein a material withdrawal hole penetrating the guide column is formed in the guide column along the axial direction, and a material withdrawal hole is arranged in the guide column. The stripping rod can move up and down along the stripping hole, and can extend out of the top of the guide column when it moves upwards. 7. The forming die of the claw-shaped member of the input bracket according to claim 1, characterized in that: the side wall of the forming die is provided with several reset holes along the circumference, and a hollow hole is perforated in the reset hole. The guide pin, the hexagon socket bolt and the return spring are installed in the guide pin, one end of the return spring is in conflict with the nut of the hex socket bolt, and the screw of the hex socket bolt is in contact with the wedge-shaped work piece conflict; When the return spring is pressed, the hexagon socket bolt presses the wedge-shaped working part inwardly, so that the wedge-shaped working part slides upward along the inclined surface at the top of the guide post. 8. The forming die of the input bracket claw as claimed in claim 7, characterized in that: The outer opening of the reset hole is provided with a fixing flange, and a reset bolt is installed on the fixed flange, and the reset bolt extends into the reset hole and conflicts with the other end of the reset spring.