CN220480210U - Die casting inner hole forming mechanism - Google Patents
Die casting inner hole forming mechanism Download PDFInfo
- Publication number
- CN220480210U CN220480210U CN202321998118.9U CN202321998118U CN220480210U CN 220480210 U CN220480210 U CN 220480210U CN 202321998118 U CN202321998118 U CN 202321998118U CN 220480210 U CN220480210 U CN 220480210U
- Authority
- CN
- China
- Prior art keywords
- section
- blind
- hole
- cylindrical section
- die casting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004512 die casting Methods 0.000 title claims abstract description 20
- 238000007493 shaping process Methods 0.000 claims abstract description 7
- 238000000465 moulding Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 6
- 230000000149 penetrating effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a die casting inner hole forming mechanism which comprises a blind insert core and a sliding block, wherein the blind insert core is arranged in a through hole formed in the sliding block in a penetrating mode, a limiting step is formed on the blind insert core, a protruding portion protruding out of a parting surface is formed on the sliding block, and the end face of the protruding portion contacts with the limiting step to form a parting line. Through the setting of protruding portion on the slider to cooperate with spacing step on the blind insert core, make to have the interval between parting line and the slider die joint between blind insert core and the slider, thereby remove the burr that the parting line formed to in the control valve hole, make the product outward appearance be the perfect design of burr-free after the shaping, realized reducing process, reduce the error, can also guarantee the purpose of product appearance quality.
Description
Technical Field
The utility model relates to the technical field of die casting production, in particular to a die casting inner hole forming mechanism.
Background
And forming an air inlet valve hole, an air outlet valve hole and a control valve hole on the rear cover die casting of the automobile air conditioner compressor, wherein the position of the control valve hole is shown as an arrow in the figure 1.
When the traditional slide block core-slide block assembly is used for forming the control valve hole, as the contact position of the slide block core and the slide block is positioned on the parting surface, a tiny gap between the slide block core and the slide block can cause the release line to appear at the orifice of the control valve hole of the rear cover die casting of the demoulded automobile air conditioner compressor so as to cause burrs. The demolding line is positioned at the appearance part of the product and needs to be processed and removed; further processing is required after the control valve hole is die-cast, and the two steps cannot be combined in the hole forming mode. Therefore, by adopting the die casting inner hole forming mechanism in the prior art, a procedure of removing apparent burrs is needed after demolding, so that the production time is prolonged, and the cost is increased.
It can be known that: likewise, other die castings with similar conditions have the above problems during the formation of the inner bore.
Disclosure of Invention
The utility model provides a die casting inner hole forming mechanism, which is characterized in that burrs formed by parting lines are moved into a control valve hole, the appearance of a formed product is free of burrs, and the burrs in the hole and the inner wall of the control valve hole can be milled together, so that the working procedures are reduced, the errors are reduced, and the appearance quality of the product can be ensured.
The utility model provides a die casting hole forming mechanism, includes blind mold insert and slider, blind mold insert wears to locate in the through-hole that the slider offered be formed with spacing step on the blind mold insert, be formed with the protrusion that protrudes in the setting of die joint face on the slider, the outside section of protruding shaping target hole, the inside section of blind mold insert shaping target hole.
Further, the blind insert core comprises a first cylindrical section, a variable diameter section and a second cylindrical section which are sequentially connected, the diameter of the variable diameter section is gradually increased, the small end of the variable diameter section is connected with the first cylindrical section, the large end of the variable diameter section is connected with the second cylindrical section, and a limiting step is formed between the variable diameter section and the second cylindrical section.
Further, the first cylindrical section has a smaller diameter than the second cylindrical section.
Further, a blind hole is formed in the center of the blind insert core, and extends from the end face of the second cylindrical section into the first cylindrical section.
Further, the blind hole is formed by communicating a through hole part and a blind hole part, the through hole part is positioned at the center of the second cylindrical section and the reducing section, and the blind hole part is positioned at the center of the reducing section and the first cylindrical section.
Further, the outer diameter of the limiting step is consistent with the outer diameter of the protruding portion.
Further, the surface of the limit step and the end face of the protruding portion are both planes.
The technical scheme has the remarkable effects that: simple structure, easy to carry out, through the setting of protruding portion on the slider to cooperate with spacing step on the blind insert core, make between parting line and the slider die joint between blind insert core and the slider have the interval, thereby remove the burr that the parting line formed to the control valve hole after the shaping in, make the product outward appearance be the perfect design of burr-free after the shaping, and the burr in the control valve hole can go on in the lump when the milling of control valve hole inner wall, and then realized reducing process, reduce the error, can also guarantee the purpose of product appearance quality.
Drawings
FIG. 1 is a schematic diagram of the results of an automotive air conditioning compressor back cover product;
FIG. 2 is a schematic diagram of the structure of the present utility model;
FIG. 3 is a schematic diagram of FIG. 2 in full section;
FIG. 4 is a view showing a state in which a rear cover product of an automotive air conditioner compressor is molded according to the present utility model;
fig. 5 is a schematic diagram of fig. 4 in full section.
Detailed Description
The utility model is further described below with reference to examples and figures.
As shown in fig. 2 and fig. 3, a die casting inner hole forming mechanism comprises a blind insert 1 and a slide block 2 (other structures are all in the prior art and are not shown), wherein the blind insert 1 is arranged in a through hole formed in the slide block 2 in a penetrating manner, a limit step 3 is formed on the blind insert 1, a protruding portion 4 protruding out of a parting plane is formed on the slide block 2, further, the protruding portion 4 and the slide block 2 are integrally formed, the protruding portion 4 is in surface contact with the limit step 3 and is in size adaptation, the protruding portion 4 is used for forming an outer section of a target hole, the blind insert 1 is used for forming an inner section of the target hole, and the target hole is generally a control valve hole of a rear cover of a die casting automobile air conditioner compressor.
As can be seen from fig. 3, the blind insert 1 includes a first cylindrical section 11, a reducing section 12 and a second cylindrical section 13 which are sequentially connected, the diameter of the reducing section 12 is gradually increased, a small end of the reducing section 12 is connected with the first cylindrical section 11, a large end of the reducing section is connected with the second cylindrical section 13, the limiting step 3 is formed between the reducing section 12 and the second cylindrical section 13, and the diameter of the first cylindrical section 11 is smaller than that of the second cylindrical section 13.
By adopting the structural design, the core structure with the required appearance can be obtained according to the process requirement, and the core structure can be ensured to have enough strength, so that the blind insert core 1 is ensured to have longer service life, and the later maintenance cost is reduced.
The second cylindrical section 13 passes through the sliding block 2, a tensioning nut is sleeved on the second cylindrical section 13, and the sliding block 2 is integrally positioned between the tensioning nut and the reducing section 12.
As can also be seen from fig. 3, a blind hole 14 is provided in the center of the blind insert 1, which blind hole 14 extends from the end face of the second cylindrical section 13 into the first cylindrical section 11.
Further, the blind hole 14 is formed by communicating a through hole portion and a blind hole portion, the through hole portion is located at the center of the second cylindrical section 13 and the variable diameter section 12, and the blind hole portion is located at the center of the variable diameter section 12 and the first cylindrical section 11.
By adopting the blind hole 13 design, the blind insert 1 can be ensured to have enough mechanical strength at all positions.
Preferably, the outer diameter of the limiting step 3 is identical to the outer diameter of the protruding portion 4, and the surface of the limiting step 3 and the end face of the protruding portion 4 are both plane surfaces.
The outer diameter dimension of the limiting step 3 is consistent with that of the protruding part 4, so that the thickness of burrs formed after molding is uniform, and the limiting step 3 is matched with the protruding part 4 through a plane.
The beneficial effects are that: according to the embodiment, through the arrangement of the protruding part 4 on the sliding block 2, the parting surface is continuous and complete without gaps, the protruding part 4 is matched with the limiting step 3 on the blind insert core 1, a certain distance is reserved between the die casting gap between the blind insert core 1 and the sliding block 2 and the parting surface, as shown in fig. 4 and 5, and therefore the product parting line caused by the die casting gap after molding is moved to the inside of the control valve hole, the appearance of the molded product is a perfect design without burrs, burrs in the control valve hole can be carried out during milling processing of the inner wall of the control valve hole, and the purposes of reducing procedures and errors and guaranteeing the appearance quality of the product are achieved.
Finally, it should be noted that the above description is only a preferred embodiment of the present utility model, and that many similar changes can be made by those skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (7)
1. The utility model provides a die casting hole forming mechanism which characterized in that: including blind mold insert (1) and slider (2), in the through-hole of seting up of slider (2) is worn to locate to blind mold insert (1) is last to be formed with spacing step (3), be formed with protrusion (4) protruding in die joint setting on slider (2), the terminal surface of this protrusion (4) with spacing step (3) contact, the outside section of protrusion (4) shaping target hole, the inside section of blind mold insert (1) shaping target hole.
2. The die casting inner bore forming mechanism as set forth in claim 1, wherein: the blind insert core (1) comprises a first cylindrical section (11), a reducing section (12) and a second cylindrical section (13) which are sequentially connected, wherein the diameter of the reducing section (12) is gradually increased, the small end of the reducing section is connected with the first cylindrical section (11), the large end of the reducing section is connected with the second cylindrical section (13), and a limiting step (3) is formed between the reducing section (12) and the second cylindrical section (13).
3. The die casting inner bore forming mechanism according to claim 2, wherein: the diameter of the first cylindrical section (11) is smaller than the diameter of the second cylindrical section (13).
4. A die cast female molding mechanism as defined in claim 2 or 3, wherein: a blind hole (14) is formed in the center of the blind insert (1), and the blind hole (14) extends from the end face of the second cylindrical section (13) into the first cylindrical section (11).
5. The die casting inner bore forming mechanism as set forth in claim 4, wherein: the blind hole (14) is formed by communicating a through hole part and a blind hole part, the through hole part is positioned at the center of the second cylindrical section (13) and the reducing section (12), and the blind hole part is positioned at the center of the reducing section (12) and the first cylindrical section (11).
6. The die casting inner bore forming mechanism as set forth in claim 1, wherein: the outer diameter of the limiting step (3) is consistent with the outer diameter of the protruding part (4).
7. A die cast female molding mechanism as defined in claim 1 or 6, wherein: the surface of the limit step (3) and the end face of the protruding part (4) are both planes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321998118.9U CN220480210U (en) | 2023-07-27 | 2023-07-27 | Die casting inner hole forming mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321998118.9U CN220480210U (en) | 2023-07-27 | 2023-07-27 | Die casting inner hole forming mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220480210U true CN220480210U (en) | 2024-02-13 |
Family
ID=89838000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321998118.9U Active CN220480210U (en) | 2023-07-27 | 2023-07-27 | Die casting inner hole forming mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220480210U (en) |
-
2023
- 2023-07-27 CN CN202321998118.9U patent/CN220480210U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3173627B1 (en) | Method for producing compressor housing | |
| CN220480210U (en) | Die casting inner hole forming mechanism | |
| CN206500600U (en) | A kind of die casting equipment of energy-saving inner chamber deep hole spraying | |
| CN105710306A (en) | Mesopore feeding process of thick and large part in turbine shell casting turbine chamber | |
| CN209811196U (en) | Sand core structure for realizing high-pressure casting of supercharger air inlet elbow | |
| CN208800783U (en) | A kind of powder metallurgy die of special-shaped axis bearing sleeve | |
| CN219766706U (en) | Ejector rod and ejector rod exhaust assembly | |
| CN113183421A (en) | Cooling water joint for ejector rod | |
| CN101644264B (en) | Method for manufacturing air compressor moving plate | |
| CN208359371U (en) | A kind of twice core pulling structure | |
| CN2472912Y (en) | Extruding, fixing and cooling device for plastic irregular section | |
| CN207982026U (en) | Cold upsetting die of car component for manufacturing car spare tire fixing bolt | |
| CN113523177B (en) | Cold extrusion molding process and mold for automobile brake claws | |
| US7314586B2 (en) | Method for manufacturing a wax mold for a golf club head | |
| CN220943081U (en) | Sand core with side exhaust structure | |
| CN215998611U (en) | Integral type mold processing of foraminiferous psammitolite | |
| CN220049907U (en) | Forging and pressing forming die for electric power fitting ball socket | |
| CN206474642U (en) | Motor intake manifold gravity casting mould | |
| CN215614848U (en) | Core box for improved water inlet sprue | |
| CN208712545U (en) | In high precision, the cold-drawing molding die of high-intensity special-shaped keypad | |
| CN216001284U (en) | One-mold two-cavity forming mold for automobile air conditioner shell | |
| CN209953772U (en) | Die casting die of integrated control valve shell of car | |
| CN215467563U (en) | Pneumatic limiting mechanism of automobile stamping die | |
| CN112570681B (en) | Automatic cleaning mechanism in die casting mould | |
| CN210061735U (en) | Die for producing guide shell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |