CN202045260U - Floating convex hull forming mould - Google Patents

Abstract

The utility model relates to a floating outer convex shell forming mold, the mold is mainly composed of an upper mold pressing head and a lower mold, the lower mold includes a fixed part and a floating part, the floating part is arranged inside the fixed part, and the fixed part includes a cover plate and a jacket , support, seat plate, forming rod, the support is set on the seat plate, the jacket is arranged on the support, the cover plate is connected to the jacket, the forming rod is fixedly connected to the seat plate, and the floating part includes a floating sleeve, a spring, a positioning plate, a floating The punch, the floating die, the floating sleeve is set on the forming rod, the positioning plate is set on the forming rod, and connected with the floating sleeve, the floating punch, the floating die and the floating sleeve are slidably connected, the floating die and the floating sleeve A spring is arranged between the floating sleeve and the support. Compared with the prior art, the utility model has the advantages of stable and reliable operation, high precision of the dimension and shape of the formed convex hull, reduced noise pollution, reduced production cost and the like.

Description

A floating outer convex hull forming die

technical field

The utility model relates to a mold, in particular to a floating outer convex hull forming mold.

Background technique

In industries such as electronics, electrical appliances, medical treatment, automobiles, instruments, and instruments, dust-proof end covers are often designed at the ends of drive shafts of many power devices. In order to ensure convenient installation and maintenance, the general end covers are formed by sheet metal deep drawing The side of the deep-drawing part is designed with 3 to 4 outer protrusions, which are used for interference fit with the groove at the end of the sealing shaft, and are used to clamp the end cover. At present, the outer convex hull of the end cap is usually formed by a combination of vertical convex hull pressing and indexing. As a result, it is difficult to ensure the position of 3 to 4 convex hulls, and the extruded convex hulls are not uniform in size, resulting in inconsistent tightness after assembly. ; If polyurethane rubber is used to expand the shape, due to the small size of the convex hull and the excessive unit pressure, it is not easy to realize; because this type of mold forming must be implemented on a mechanical press, the noise is large and the cost is high.

Utility model content

The purpose of this utility model is to provide a floating outer convex hull with stable and reliable operation, high precision of the size and shape of the formed convex hull, and can reduce noise pollution and production cost in order to overcome the defects of the above-mentioned prior art. Forming mold.

The purpose of this utility model can be achieved through the following technical solutions: a floating outer convex shell forming mold, characterized in that the mold is mainly composed of an upper mold pressure head and a lower mold, and the lower mold includes a fixed part and a floating part , the floating part is arranged inside the fixed part, and the fixed part includes a cover plate, an outer cover, a support, a seat plate, and a forming rod, the described support is arranged on the seat plate, and the described outer cover is arranged on the support, the The cover plate is connected with the jacket, the forming rod is fixedly connected with the seat plate, the floating part includes a floating sleeve, a spring, a positioning plate, a floating punch, a floating die, and the floating sleeve is set on the forming rod Above, the positioning plate is sleeved on the forming rod and connected with the floating sleeve, the floating punch, the floating die and the floating sleeve are slidably connected, and a spring is arranged between the floating die and the floating sleeve. , A spring is arranged between the floating sleeve and the support.

The forming rod and the seat plate are fixed through an interference connection.

The mold also includes a backing plate disposed below the seat plate.

Compared with the prior art, the utility model has the following advantages:

1. Provide a new device for high-quality, high-efficiency, and low-cost production of convex shell end caps, which has high use value;

2. Through the design of the floating punch and die, combined with the up and down movement of the floating sleeve, and the conical surface of the sleeve and the forming rod, the shape accuracy, size accuracy and position accuracy of the convex hull after forming are accurately guaranteed;

3. The movable parts adopt sliding fit to ensure the stability of movement and work reliability;

4. Adopting this structure simplifies the structure of the upper mold of the traditional mold, and can realize stamping on a pneumatic or gas-hydraulic booster press, avoiding the defects of high noise, troublesome operation and high cost of stamping using a traditional mechanical press.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure, 1 is the seat plate, 2 is the forming rod, 3 is the positioning plate, 4 is the floating die, 5 is the spring, 6 is the pressure head, 7 is the cover plate, 8 is the floating punch, 9 is the floating sleeve, 10 is the Overcoat, 11 are bearings, 12 are backing plates, and 13 are straight pins.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Example

As shown in Figure 1, a floating outer convex hull forming die is composed of an upper die indenter 6 and a lower die, and the lower die is composed of a fixed part and a floating part.

The fixed part is composed of a cover plate 7, an outer jacket 10, a support 11, a backing plate 12, a cylindrical pin 13, a seat plate 1, and a forming rod 2. The cover plate 7 and the jacket 10 are connected by four screws; the forming rod 2 and the seat plate 1 are fixed by interference fit; the seat plate 1, the support 11, the backing plate 12 and the seat plate 1 are fixed by four screws and two cylindrical pins 13 positioning; the cover plate 7 limits the upward distance of the floating sleeve 9, the inner tapered surface of the outer jacket 10 provides the moving distance of the floating die 4, and the tapered surface of the forming rod 2 provides the pressing depth of the floating punch 8.

The floating part is composed of a floating sleeve 9, a spring 5, a positioning plate 3, a floating punch 8, a floating die 4, and the like. The interference fit is adopted between the positioning plate 3 and the floating sleeve 9; the sliding fit is adopted between the floating sleeve 9 and the floating die 4, and the spring 5 is used for reset; the sliding fit is adopted between the floating sleeve 9 and the outer sleeve 10, and the floating sleeve 9 and the support Seats 11 are fitted with a small gap and reset by spring 5; the floating punch 8 and the floating sleeve 9 are fitted in a sliding manner; the upper end of the forming rod 2 and the positioning plate 3 are fitted in a sliding manner, and the pressure is controlled by the taper surface at the upper end. Into convex hull depth. After the fixed part and the floating part are assembled, the corresponding floating die 4 and floating punch 8 are driven by the tapered surface of the floating sleeve 9 and the tapered surface of the forming rod 2 to ensure the shape accuracy and depth consistency of the extruded convex hull.

When using this device, the drawn rough blank is placed on the positioning plate 3, the pressure head 6 moves downward to drive the positioning plate 3 and the floating sleeve 9 downward, and then the floating die 4 moves along the vertical direction, and the moving distance is determined by the outer cover 10. The conical surface of the forming rod 2 controls the blank, and then the floating punch 8 moves along the horizontal direction to complete the convex hull forming. The moving distance is controlled by the conical surface of the forming rod 2. When it comes down, the pressure head 6 goes up, and the spring 5 lifts the floating sleeve 9 , the spring 5 pushes out the floating die 4 horizontally, and after taking out the stamping, the floating punch 8 moves inward, and the whole process ends.

Claims (3)

1. a kind of floating type outer convex hull molding die, it is characterized in that, this mold mainly is made up of upper die indenter, lower die, described lower die comprises fixed part and floating part, and floating part is arranged on fixed part inside, described The fixed part includes a cover plate, an outer cover, a support, a seat plate, and a forming rod, the support is arranged on the seat plate, the outer cover is arranged on the support, the cover plate is connected with the outer cover, and the The forming rod is fixedly connected with the seat plate. The floating part includes a floating sleeve, a spring, a positioning plate, a floating punch, and a floating die. The floating sleeve is sleeved on the forming rod, and the positioning plate is sleeved on the forming rod. on the rod and connected with the floating sleeve, the floating punch, the floating die and the floating sleeve are slidably connected, a spring is arranged between the floating die and the floating sleeve, and a spring is arranged between the floating sleeve and the support With spring. 2. A floating outer convex hull forming die according to claim 1, characterized in that the forming rod and the seat plate are fixed through an interference connection. 3. A floating outer convex hull forming mold according to claim 1, characterized in that the mold further comprises a backing plate, and the backing plate is arranged under the seat plate.

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