Column head lock catch forming tool

Abstract

The utility model belongs to the field of tool manufacturing, and particularly relates to a column head lock catch forming tool which comprises a first column head, a second column head and a base, a containing cavity with an upward opening is formed in the base, and the lower end of the first column head and the lower end of the second column head are each coaxially provided with a receding cavity with a downward opening. The inner diameter of the receding cavity in the first column head is equal to that of the receding cavity in the second column head, the inner diameter of the receding cavity is smaller than the minimum inner diameter of the containing cavity, the lower end face of the first column head is a plane, a step body is arranged at the lower end of the second column head, and the outer diameter of the upper end of the step body is larger than that of the lower end of the step body. The upper end of the step body is coaxially and fixedly connected with the lower end of the second column head, a receding cavity in the second column head penetrates through the step body, and the outer diameter of the lower end of the step body is equal to the inner diameter of the receding cavity; the tool solves the problem that a tool used for riveting the column head lock catch with the annular turning piece on the outer circumferential face of the lower end does not exist at present.

Description

Technical Field

[0001] This application belongs to the field of tooling manufacturing, specifically a tooling for forming column head locking. Background Technology

[0002] like Figure 1 As shown, a column head lock with an annular flap 12 is provided around the lower end of the main column head 11. During installation, the main column head 11 is inserted into the mounting hole 10, and then the annular flap 12 is squeezed by some tools, so that the annular flap 12 moves away from the column head 11 to abut against the inner wall of the mounting hole 10 to form an interference fit. However, there are currently no special tools to match it, so it is impossible to rivet it, which causes trouble for the subsequent construction period. Therefore, it is urgent to design a new type of column head lock forming tool. Utility Model Content

[0003] The purpose of this application is to address the shortcomings of existing technologies by designing a column head locking forming tooling that uses a first column head with a placement cavity and a second column head with a placement cavity but an additional step. This tooling is applicable to column head locking buckles with annular flaps on the lower outer circumference, thus solving the problem that there is currently no tooling for riveting such column head locking buckles with annular flaps on the lower outer circumference.

[0004] To achieve the above objectives, the technical solution adopted in this application is:

[0005] A tooling for forming a column head lock includes a first column head, a second column head, and a base. The base has an upward-opening placement cavity. The lower ends of the first and second column heads each have a downward-opening relief cavity coaxially arranged. The inner diameters of the relief cavities on the first and second column heads are equal, and the inner diameter of the relief cavity is smaller than the minimum inner diameter of the placement cavity. The lower end face of the first column head is flat. The lower end of the second column head has a step body. The outer diameter of the upper end of the step body is larger than the outer diameter of the lower end. The upper end of the step body is coaxially and fixedly connected to the lower end of the second column head. The relief cavity on the second column head passes through the step body, and the outer diameter of the lower end of the step body is equal to the inner diameter of the relief cavity.

[0006] Preferably, the placement cavity is a slot, with both ends of the slot extending to the opposite sides of the upper part of the base, and the width of the slot is greater than the inner diameter of the clearance cavity.

[0007] Preferably, the width of the slot is smaller than the outer diameter of the first column and the outer diameter of the second column.

[0008] Preferably, the upper surface of the base is provided with a support rod next to the placement cavity, and the support rod is provided with a tubular component with openings at both ends. The axis of the tubular component is located in the center of the placement cavity and is perpendicular to the upper surface of the base. The inner diameter of the first column is equal to the outer diameter of the second column, which is equal to the inner diameter of the tubular component.

[0009] Preferably, the length of the support rod is less than the length of the first column head and the length of the second column head, the lower end of the support rod is fixedly connected to the upper surface of the base, and the tubular component is disposed between the two ends of the support rod.

[0010] Preferably, the end of the first column facing away from the relief cavity is coaxially and fixedly connected to the end of the second column facing away from the relief cavity.

[0011] Compared with the prior art, this application has the following beneficial effects:

[0012] This application employs a first column head with a placement cavity and a second column head with a placement cavity but an additional step to design a column head locking buckle forming tooling. This tooling is applicable to column head locking buckles with annular flaps on the lower outer circumference, solving the problem that there is currently no tooling for riveting such column head locking buckles with annular flaps on the lower outer circumference. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of the column head locking mechanism;

[0014] Figure 2 This is a schematic diagram of the structure of this application;

[0015] Figure 3 This is a schematic diagram illustrating the structure of the relief cavity on the second spur head in this application;

[0016] Figure 4 This is a schematic diagram illustrating the working process of this application;

[0017] Figure 5 This is a schematic diagram of the column head locking mechanism using the second column head riveting method described in this application.

[0018] Among them, 1. First column head; 2. Second column head; 3. Base; 4. Placement cavity; 5. Relief cavity; 6. Step body; 7. Support rod; 8. Tubular component; 9. Box cover; 10. Mounting hole; 11. Main column head; 12. Annular flap. Detailed Implementation

[0019] like Figure 1-5As shown, a column head locking forming fixture includes a first column head 1, a second column head 2, and a base 3. The base 3 has an upward-opening placement cavity 4. The lower ends of the first column head 1 and the second column head 2 each have a downward-opening relief cavity 5 coaxially. The inner diameter of the relief cavity 5 on the first column head 1 is equal to the inner diameter of the relief cavity 5 on the second column head 2. The inner diameter of the relief cavity 5 is smaller than the minimum inner diameter of the placement cavity 4. The lower end face of the first column head 1 is flat. The lower end of the second column head 2 has a step body 6. The outer diameter of the upper end of the step body 6 is larger than the outer diameter of the lower end. The upper end of the step body 6 is coaxially fixedly connected to the lower end of the second column head 2. The relief cavity 5 on the second column head 2 passes through the step body 6. The outer diameter of the lower end of the step body 6 is equal to the inner diameter of the relief cavity 5.

[0020] In this embodiment, during use, the column head latch is first placed in the placement cavity 4 with its top end facing upwards. Then, the box cover 9 is placed on the base 3, so that the mounting hole 10 on the box cover 9 for riveting the column head latch is directly above the column head latch. Next, the end of the first column head 1 with the relief cavity 5 is pressed towards the box cover 9, ensuring that the relief cavity 5 is coaxial with the column head latch. The first column head 1 is used for pre-forming the column head latch, its purpose being to feed material and prevent breakage of the column head latch. After the first column head 1 is pressed, the upper end of the column head latch penetrates to the upper surface of the box cover 9 under the pressure applied by the first column head 1. Then, the first column head 1 is replaced with the second column head 2, as follows... Figure 5 As shown, since there is a step body 6 on the second column head 2, one end of the small end of the step body 6 extends into the space between the main column head 11 of the column head lock and the annular flap 12, pressing the annular flap 12 toward the inner wall of the mounting hole 10 on the box cover 9, thereby making the column head lock more secure on the box cover 8.

[0021] As a preferred embodiment, the placement cavity 4 is a slot, with both ends extending to the opposite sides of the upper part of the base 3. The width of the slot is greater than the inner diameter of the clearance cavity 5. The placement cavity 4 is designed to accommodate the pin head lock, preventing it from sliding and shifting when pressed on the base 3. The slot design facilitates the placement of pin head locks that have not yet been pressed into the lid 9. This allows workers to easily place another pin head lock that has not yet been pressed into the mounting hole 10 of the lid 9 after pressing one into the mounting hole 10, placing it directly below the first pin head 1 or the second pin head 2. This makes it easier to rivet the pin head lock into the mounting hole 10 of the next lid 9.

[0022] As a preferred embodiment, the width of the slot is smaller than the outer diameter of the first column 1 and the second column 2. This arrangement prevents the first column 1 or the second column 2 from damaging the lid 9 when it is pressed down, because if the width of the slot is larger than the outer diameter of the first column 1 and the second column 2, the part of the lid 9 that is pressed down will be completely suspended in the air when the first column 1 or the second column 2 is pressed down.

[0023] As a preferred embodiment, the upper surface of the base 3 is provided with a support rod 7 beside the placement cavity 4. The support rod 7 has a tubular component 8 with openings at both ends. The axis of the tubular component 8 is located at the center of the placement cavity 4 and is perpendicular to the upper surface of the base 3. The inner diameter of the first column head 1 is equal to the outer diameter of the second column head 2, which is equal to the inner diameter of the tubular component 8. By providing the tubular component 8, when the first column head 1 or the second column head 2 is stamped, it extends from inside the tubular component 8 onto the lid 9. This ensures that the pressure exerted on the lid 9 by the first column head 1 or the second column head 2 during stamping is vertically downward, preventing tilting.

[0024] As a preferred embodiment, the length of the support rod 7 is less than the length of the first column head 1 and the second column head 2. The lower end of the support rod 7 is fixedly connected to the upper surface of the base 3, and the tubular member 8 is disposed between the two ends of the support rod 7. This arrangement facilitates the switching of the first column head 1 and the second column head 2. When switching is required, the first column head 1 and the second column head 2 can be pulled out from the tubular member 8, swapped, and then reinserted into the tubular member 8. The tubular member 8 is disposed between the two ends of the support rod 7 so that when the first column head 1 or the second column head 2 is pressed, the tubular member 8 will not obstruct the downward pressing of the first column head 1 or the second column head 2, because the length of the support rod 7 is less than the length of the first column head 1 and the second column head 2.

[0025] As a preferred embodiment, the end of the first column head 1 facing away from the relief cavity 5 is coaxially and fixedly connected to the end of the second column head 2 facing away from the relief cavity 5. Connecting the first column head 1 and the second column head 2 together to form a single unit also prevents the loss of either the first column head 1 or the second column head 2.

Claims

1. A tooling for forming a column head locking mechanism, characterized in that, The device includes a first column (1), a second column (2), and a base (3). The base (3) has an upward-opening placement cavity (4). The lower ends of the first column (1) and the second column (2) each have a downward-opening relief cavity (5) coaxially. The inner diameter of the relief cavity (5) on the first column (1) is equal to the inner diameter of the relief cavity (5) on the second column (2). The inner diameter of the relief cavity (5) is smaller than the minimum inner diameter of the placement cavity (4). The lower end face of the first column (1) is a plane. The lower end of the second column (2) has a step body (6). The outer diameter of the upper end of the step body (6) is larger than the outer diameter of the lower end. The upper end of the step body (6) is coaxially and fixedly connected to the lower end of the second column (2). The relief cavity (5) on the second column (2) passes through the step body (6). The outer diameter of the lower end of the step body (6) is equal to the inner diameter of the relief cavity (5).

2. The column head locking forming tooling according to claim 1, characterized in that, The placement cavity (4) is a slot, and the two ends of the slot extend to the opposite sides of the upper part of the base (3). The width of the slot is greater than the inner diameter of the relief cavity (5).

3. The column head locking forming tooling according to claim 2, characterized in that, The width of the slot is smaller than the outer diameter of the first column head (1) and the outer diameter of the second column head (2).

4. The column head locking forming tooling according to claim 1, characterized in that, The upper surface of the base (3) is provided with a support rod (7) next to the placement cavity (4). The support rod (7) is provided with a tubular member (8) with openings at both ends. The axis of the tubular member (8) is located in the center of the placement cavity (4). The axis of the tubular member (8) is perpendicular to the upper surface of the base (3). The inner diameter of the first column (1) is equal to the outer diameter of the second column (2) and the inner diameter of the tubular member (8).

5. The column head locking forming tooling according to claim 4, characterized in that, The length of the support rod (7) is less than the length of the first column head (1) and the length of the second column head (2). The lower end of the support rod (7) is fixedly connected to the upper surface of the base (3). The tubular component (8) is located between the two ends of the support rod (7).

6. The column head locking forming tooling according to claim 1, characterized in that, One end of the first column head (1) facing away from the relief cavity (5) is coaxially and fixedly connected to one end of the second column head (2) facing away from the relief cavity (5).

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