CN209577892U - A kind of gear die - Google Patents
A kind of gear die Download PDFInfo
- Publication number
- CN209577892U CN209577892U CN201920044005.2U CN201920044005U CN209577892U CN 209577892 U CN209577892 U CN 209577892U CN 201920044005 U CN201920044005 U CN 201920044005U CN 209577892 U CN209577892 U CN 209577892U
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- China
- Prior art keywords
- stepped hole
- undershoot
- stick core
- gear
- core
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Abstract
The utility model discloses a kind of gear die, including Shang Chong, middle mould, undershoot, stick core, it is described on rush center equipped with the first stepped hole wide at the top and narrow at the bottom, the undershoot center is equipped with the second up-narrow and down-wide stepped hole；Mold core is set in the middle mould, the mold core center is equipped with third stepped hole wide at the top and narrow at the bottom, and the upper punching is set in the wider top of third stepped hole from top to bottom, and undershoot is set in the relatively narrow lower part of third stepped hole from the bottom up；The stick core is ladder column, the upper section being gradually increased including diameter from top to bottom, middle section, lower section and pedestal, and stick core upper section is sleeved on the relatively narrow position of the first stepped hole of punching, and middle section is located at the relatively narrow position of the second stepped hole of undershoot；The relatively narrow hole inner wall in the third stepped hole lower part of the mold core is equipped with internal gear, and the undershoot outer wall is equipped with external gear corresponding with internal gear.Gear die provided by the utility model, structure is simple, easy to use, save the cost.
Description
Technical field
The utility model relates to a kind of gear dies, belong to Gear Manufacturing Technology field.
Background technique
Mold makes blank become the tool for having the production of specific shape and size under external force.It is widely applied and rushes
The system such as sanction, shaping and punching, die forging, cold-heading, extruding, metallic sintered products compacting, compression casting and engineering plastics, rubber, ceramics
In the compression moulding of product or injection molded processing.It produces a product in batches, designs and manufacture a kind of suitable mold and given birth to for improving
Efficiency is produced, it is significant to save production cost.
Utility model content
Purpose: the utility model provides a kind of dedicated gear die of production line.
Technical solution: in order to solve the above technical problems, the technical solution adopted by the utility model is:
A kind of gear die, including Shang Chong, middle mould, undershoot, stick core, it is described on rush center equipped with the first rank wide at the top and narrow at the bottom
Terraced hole, the undershoot center are equipped with the second up-narrow and down-wide stepped hole；Mold core is set in the middle mould, the mold core center is equipped with upper
Narrow third stepped hole under width, the upper punching are set in the wider top of third stepped hole from top to bottom, and undershoot covers from the bottom up
It is located at the relatively narrow lower part of third stepped hole；The stick core be ladder column, the upper section being gradually increased including diameter from top to bottom, in
Section, lower section and pedestal, stick core upper section are sleeved on the relatively narrow position of the first stepped hole of punching, and middle section is located at the second ladder of undershoot
The relatively narrow position in hole；The relatively narrow hole inner wall in the third stepped hole lower part of the mold core is equipped with internal gear, and the undershoot outer wall is equipped with
External gear corresponding with internal gear.
Further, end face is swept away on described equipped with annular groove.
Further, the undershoot upper surface is equipped with annular groove.
Further, side wall is rushed on described and is additionally provided with venthole, and venthole and the first stepped hole are through communicating.
Further, the end face of the external gear of the undershoot outer wall is inclined surface, and the angle with horizontal plane is 20 °.
Further, the stick core pedestal is externally provided with stick core cap and stick core print seat, and the stick core cap is set in outside stick core pedestal,
The stick core print seat is fixed below stick core cap.
The utility model has the advantages that a kind of gear die provided by the utility model, structure is simple, easy to use, root in middle mould mold core
Molding hole wide at the top and narrow at the bottom is arranged in various outer diameter according to upper punching, undershoot, convenient for upper punching, the positioning of undershoot；On rush side wall and be additionally provided with
Venthole connects external aspiration pump, can exclude the air in mold cavity in time, improves gear forming quality.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the details enlarged drawing for sweeping away end face in Fig. 1 in part A；
Fig. 3 is the details enlarged drawing of part B undershoot upper surface in Fig. 1.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.
As shown in Figure 1, a kind of gear die, including upper punching 1, middle mould 2, undershoot 3 and stick core 4,1 center of the upper punching are equipped with
First stepped hole 11 wide at the top and narrow at the bottom, 3 center of undershoot are equipped with the second up-narrow and down-wide stepped hole 31.It is set in the middle mould 2
There is mold core 21,21 center of mold core is equipped with third stepped hole 22 wide at the top and narrow at the bottom, and the upper punching 1 is set in third from top to bottom
The wider top of stepped hole 22, undershoot 3 are set in the relatively narrow lower part of third stepped hole 22, the third of the mold core 21 from the bottom up
The relatively narrow hole inner wall in 22 lower part of stepped hole is equipped with internal gear 23, and 3 outer wall of undershoot is equipped with external tooth corresponding with internal gear 23
Wheel 32.
As shown in Figure 2 and Figure 3,1 lower end surface of the upper punching is equipped with annular groove, and it is recessed that 3 upper surface of undershoot is equipped with annular
Slot.The end face of the external gear 32 of 3 outer wall of undershoot is inclined surface, and the angle with horizontal plane is 20 °.
Side wall is rushed on described and is additionally provided with venthole, and venthole runs through with the first stepped hole to be communicated.Venthole and external pumping
Pump is connected, and can exclude the air in mold cavity in time, improves gear forming quality.
The stick core 4 is ladder column, the upper section 41 being gradually increased including diameter from top to bottom, middle section 42, lower section 43 and bottom
Seat 44, stick core upper section 41 are sleeved on the relatively narrow position of the first stepped hole 11 of punching 1, and middle section 42 is located at the second ladder of undershoot 3
The relatively narrow position in hole 31.
The stick core pedestal 44 is externally provided with stick core cap 45 and stick core print seat 46, and the stick core cap 45 is set in stick core pedestal 44
Outside, the stick core print seat 46 is fixed on 45 lower section of stick core cap.
The above is only the preferred embodiment of the utility model, it should be pointed out that: for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (6)
1. a kind of gear die, it is characterised in that: including Shang Chong, middle mould, undershoot, stick core, it is described on rush center be equipped with it is upper it is wide under
The first narrow stepped hole, the undershoot center are equipped with the second up-narrow and down-wide stepped hole；Mold core, the mold core are set in the middle mould
Center is equipped with third stepped hole wide at the top and narrow at the bottom, and the upper punching is set in the wider top of third stepped hole, undershoot from top to bottom
It is set in the relatively narrow lower part of third stepped hole from the bottom up；The stick core is ladder column, including diameter is gradually increased from top to bottom
Upper section, middle section, lower section and pedestal, stick core upper section is sleeved on the relatively narrow position of the first stepped hole of punching, and middle section is located at undershoot
The relatively narrow position of the second stepped hole；The relatively narrow hole inner wall in the third stepped hole lower part of the mold core is equipped with internal gear, under described
The outer wall of punching is equipped with external gear corresponding with internal gear.
2. a kind of gear die according to claim 1, it is characterised in that: sweep away end face on described equipped with annular groove.
3. a kind of gear die according to claim 1, it is characterised in that: the undershoot upper surface is equipped with annular groove.
4. a kind of gear die according to claim 1, it is characterised in that: rush side wall on described and be additionally provided with venthole, out
Stomata runs through with the first stepped hole to be communicated.
5. a kind of gear die according to claim 1, it is characterised in that: the end face of the external gear of the undershoot outer wall is
Inclined surface, the angle with horizontal plane are 20 °.
6. a kind of gear die according to claim 1, it is characterised in that: the stick core pedestal is externally provided with stick core cap and stick
Core print seat, the stick core cap are set in outside stick core pedestal, and the stick core print seat is fixed below stick core cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920044005.2U CN209577892U (en) | 2019-01-11 | 2019-01-11 | A kind of gear die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920044005.2U CN209577892U (en) | 2019-01-11 | 2019-01-11 | A kind of gear die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209577892U true CN209577892U (en) | 2019-11-05 |
Family
ID=68353104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920044005.2U Active CN209577892U (en) | 2019-01-11 | 2019-01-11 | A kind of gear die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209577892U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI722949B (en) * | 2020-07-30 | 2021-03-21 | 瑋瑩實業有限公司 | Twill molding die structure for riveting nut |
-
2019
- 2019-01-11 CN CN201920044005.2U patent/CN209577892U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI722949B (en) * | 2020-07-30 | 2021-03-21 | 瑋瑩實業有限公司 | Twill molding die structure for riveting nut |
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