CN114166262A

CN114166262A - Sensor housing and die casting die thereof

Info

Publication number: CN114166262A
Application number: CN202111423248.5A
Authority: CN
Inventors: 顾黎明
Original assignee: Jiangsu Yuxin Sensor Technology Co ltd
Current assignee: Jiangsu Yuxin Sensor Technology Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-03-11

Abstract

The invention discloses a sensor shell and a die-casting die thereof, belonging to the technical field of sensor shells and comprising an upper shell, a lower shell, a movable die and a fixed die, wherein one side of the fixed die, which is close to the movable die, is provided with a plurality of cavities, the surface of the fixed die between the cavities is provided with a runner, the runner is communicated with the cavities, one side of the movable die, which is close to the fixed die, is provided with a core, the core is just opposite to the cavities, a hidden account material nozzle is fixed on the movable die between the cores, the material nozzle is just opposite to the middle part of the runner, and a cooling assembly is arranged in the fixed die. The movable mould and the fixed mould are matched with each other, molten alloy raw materials are poured into the runner through the material nozzle, so that alloy solution enters the cavity, the alloy solution is integrally formed in the cavity and the core gap to obtain an upper shell and a lower shell, integrated processing is realized, the production efficiency of the sensor shell is improved, the upper shell and the lower shell which are made of aluminum alloy have excellent strength and corrosion resistance and high temperature resistance, the service life of the sensor is prolonged, and the requirement for automation is met.

Description

Sensor housing and die casting die thereof

Technical Field

The invention relates to the technical field of sensor shells, in particular to a sensor shell and a die-casting die thereof.

Background

Along with the development of industrial automation technology, sensor application technology is more mature, if temperature, pressure, infrared ray, laser sensor and the like are required to be used on an automatic machine tool frequently, most of the existing sensor shells adopt plastic shells, the strength is low, damage is easy to occur in automatic equipment, the automation process is influenced, the alloy shells are generally in a large shape through die casting, then structures such as through holes are machined through CNC, the multiple machining production efficiency is low, and dimension errors exist in secondary hole opening, so that a sensor shell and a die casting die thereof are provided for solving the problems.

Disclosure of Invention

The invention aims to provide a sensor shell and a die-casting die thereof, which aim to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a sensor housing, includes epitheca and inferior valve, the epitheca includes first casing, the inferior valve includes the second casing, the second casing of closely laminating of first casing, and the one end edge that first casing and second casing are close to mutually is integrated into one piece respectively and is equipped with first engaging lug and second engaging lug, one side one end that the second casing was kept away from to first casing is opened there is the draw-in groove, open the bottom of draw-in groove has logical groove, lead to the inner chamber of groove intercommunication first casing, the one end terminal surface that the draw-in groove was kept away from to first casing is opened there are two line holes, the both sides outer wall middle part integrated into one piece of second casing is equipped with the mount pad, the inner chamber four corners department of second casing homogeneous body shaping is equipped with the erection column.

In a preferred embodiment, one side of the first shell, which is far away from the second shell, is an arc-shaped structure, the clamping groove and the through groove form a T-shaped structure, and the thickness of the mounting seat is equal to the height of the outer wall of the second shell.

In a preferred embodiment, the upper shell and the lower shell comprise the following raw materials in percentage by mass: 9.5 to 11.5 percent of silicon, 2.5 to 3.5 percent of copper, 0.5 to 0.75 percent of nickel, 3.5 to 4.5 percent of magnesium, 7.5 to 8.5 percent of zinc, 2.5 to 3.5 percent of manganese, 0.9 to 1.1 percent of titanium, 1.5 to 2.5 percent of chromium and the balance of aluminum.

The utility model provides a die casting die of sensor housing, includes movable mould and cover half, the cover half is close to one side of movable mould and is opened there are a plurality of die cavities, cover half surface between the die cavity is opened there is the runner, and runner intercommunication die cavity, the movable mould is close to one side installation core of cover half, the core is just to the die cavity, fixed secret account material mouth on the movable mould between the core, the material mouth is just to the middle part of runner, install cooling module in the cover half.

In an optimized implementation case, the four corners of one side of the movable mold close to the fixed mold are fixedly provided with guide columns, the fixed mold is provided with guide holes, the guide columns are opposite to the guide holes, and chamfers are arranged at the bottoms of the guide columns.

Preferably, the die cavity comprises a first cavity and a second cavity, two first cavities and two second cavities are respectively formed in two sides of one side, close to the movable die, of the fixed die, the first cavities and the second cavities are respectively communicated with two ends of the flow channel, connecting lug grooves are formed in four corners of the top surfaces of the first cavities and the second cavities, a fixed core is fixedly installed at the bottom of one end, close to the second cavity, of the first cavity, a core pulling mechanism is arranged between the other end of the first cavity and the movable die, and installation seat grooves are formed in the top surfaces of the middle portions of two sides of the second cavity.

Preferably, the core pulling mechanism comprises a sliding groove, one side, far away from the second cavity, of the fixed die is provided with the sliding groove, one end of the sliding groove is provided with a sealing hole communicated with the first cavity, the sliding groove is connected with a sliding block in a sliding and clamping mode, a movable core is fixedly installed on the outer wall of the sliding block and penetrates through the sealing hole in a sliding mode, a spring is installed between the inner wall of the sliding groove between the sealing holes and the outer wall of the sliding block, the fixed die on the top surface and the bottom surface of the sliding groove is provided with a pushing groove, the sliding block is provided with a jack, an insert rod is fixedly installed on the edge of the movable die, and the bottom of the insert rod is opposite to the jack.

In a preferred embodiment, the movable core and the sealing hole are both cylindrical structures, the spring is always in a compressed state, the insertion rod and the insertion hole are both inclined cylindrical structures, and the width of the push groove is equal to the diameter of the insertion rod.

In an embodiment of the preferable application, the mold core includes an upper shell core and a lower shell core, two sides of one side of the movable mold close to the fixed mold are respectively and fixedly installed with the upper shell core and the lower shell core, the upper shell core and the lower shell core are respectively and rightly opposite to the first cavity and the second cavity, four corners of the lower shell core are respectively provided with an installation column hole, and a core column with a cylindrical structure is fixedly installed in an inner cavity of the installation column hole, the connecting lug groove and the installation seat groove.

An embodiment of preferred, cooling unit includes the coil pipe, the coil pipe is cup jointed to the cover half internal fixation of die cavity bottom, the coil pipe constitutes for a plurality of U type pipe end to end, two the equal fixed mounting flood peak of the one end that keeps away from mutually of coil pipe, the outer wall that the fixed cover half that runs through of flood peak, fixed connection connecting pipe between the one end that the coil pipe is close to mutually, the fixed cover of connecting pipe is in the cover half of runner bottom.

The invention has the beneficial effects that:

1. the mounting column of the inner cavity of the second shell is convenient for mounting the sensor electrical component, the first shell and the second shell are aligned through the first connecting lug and the second connecting lug and are connected through the bolt, so that the assembly of the sensor shell is realized, the glass or plastic with a transparent structure is convenient to clamp through the through groove and the clamping groove, the light source of an infrared or laser sensor is convenient to eject and receive, the temperature sensor can also be used for displaying, and the like, the line connection is convenient through a line hole, the fixation between the sensor and automatic equipment is convenient through the mounting seat, and the use is convenient;

2. the upper shell and the lower shell made of aluminum alloy have excellent strength, corrosion resistance and high temperature resistance, the service life of the sensor is prolonged, and the requirement of automation is met;

3. the movable die and the fixed die are combined, the upper shell core and the lower shell core are respectively clamped into the first cavity and the second cavity and seal the edges of the first cavity and the second cavity, so that the first shell and the second shell are formed by one-time die casting, the fixed core is attached to the upper shell core, a clamping groove and a through groove are integrally formed on the first shell, a first connecting lug, a second connecting lug, a mounting seat and a mounting column are integrally formed at the positions of the connecting lug groove, the mounting seat groove and the mounting column hole, and a wire hole is integrally formed when the first shell is die-cast by a core pulling mechanism, so that one-time die casting molding is realized, the production efficiency is improved, and the size error caused by secondary processing is avoided;

4. during movable mould and cover half compound die, the inserted bar inserts in the jack, along with moving down of inserted bar, the inserted bar promotes the slider through the slope structure and slides along the spout, thereby push the activity core in first cavity, then during die-casting, activity core department forms the line hole, during the die sinking, the inserted bar moves up, thereby first cavity is kept away from to the pulling slider, then the activity core slides in the sealed hole completely, thereby break away from the fashioned epitheca of die-casting, the epitheca drawing of patterns of being convenient for realizes the integrated into one piece in line hole, improve size precision.

Drawings

Fig. 1 is a schematic structural diagram of a sensor housing according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of the inner cavity of the upper shell.

Fig. 3 is a schematic structural diagram of a die-casting mold for a sensor housing according to an embodiment of the present invention.

FIG. 4 is a schematic diagram of a fixed mold structure of the present invention.

FIG. 5 is a schematic view of the structure of the cooling module according to the present invention.

FIG. 6 is a schematic view of a partial cross-sectional structure of a fixed mold according to the present invention.

FIG. 7 is an enlarged view of the structure at A in FIG. 6 according to the present invention.

FIG. 8 is a schematic view of the moving mold structure of the present invention.

In the figure: 1. moving the mold; 2. fixing a mold; 3. an upper shell; 31. a card slot; 32. a through groove; 33. a first housing; 34. a wire hole; 35. a first connecting lug; 4. a lower case; 41. a second housing; 42. mounting a column; 43. a second engaging lug; 44. a mounting seat; 5. a guide post; 6. a guide hole; 7. a cavity; 71. a first chamber; 72. a second chamber; 73. a connecting lug groove; 74. a mounting seat slot; 75. fixing the core; 76. a core-pulling mechanism; 761. a chute; 762. sealing the hole; 763. a slider; 764. a movable core; 765. inserting a rod; 766. pushing the groove; 767. a jack; 768. a spring; 8. a cooling assembly; 81. a coil pipe; 82. a connecting pipe; 83. a head of water; 9. a core; 91. an upper shell core; 92. a lower shell core; 93. mounting a column hole; 10. a material nozzle; 11. and a flow passage.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example (b): as shown in fig. 1 to 8, the present invention provides a sensor housing, which includes an upper housing 3 and a lower housing 4, wherein the upper housing 3 includes a first housing 33, the lower housing 4 includes a second housing 41, the first housing 33 is tightly attached to the second housing 41, and edges of ends of the first housing 33 and the second housing 41, which are close to each other, are respectively provided with a first connecting lug 35 and a second connecting lug 43 in an integrally formed manner, one end of the first housing 33, which is far away from the second housing 41, is provided with a clamping groove 31, a bottom of the clamping groove 31 is provided with a through groove 32, the through groove 32 is communicated with an inner cavity of the first housing 33, an end of the first housing 33, which is far away from the clamping groove 31, is provided with two wire holes 34, a mounting seat 44 is integrally formed in a middle portion of outer walls of two sides of the second housing 41, and a mounting post 42 is uniformly formed at four corners of the inner cavity of the second housing 41. The sensor electrical component is convenient for install by the erection column 42 of second casing 41 inner chamber, first casing 33 aligns and passes through bolted connection through first engaging lug 35 and second engaging lug 43 with second casing 41, thereby realize the sensor housing equipment, the glass or the plastics of joint transparent construction are convenient for through leading to groove 32 and draw-in groove 31, be convenient for infrared ray or laser sensor light source to jet out and receive, also can be used to show such as temperature sensor, be convenient for the line connection through line hole 34, it is fixed between sensor and automation equipment to be convenient for through mount pad 44, it is convenient to use.

Further, the side of the first housing 33 away from the second housing 41 is an arc-shaped structure, the slot 31 and the through slot 32 form a T-shaped structure, and the thickness of the mounting seat 44 is equal to the height of the outer wall of the second housing 41.

The upper shell 3 and the lower shell 4 comprise the following raw materials in percentage by mass: 9.5-11.5% of silicon, 2.5-3.5% of copper, 0.5-0.75% of nickel, 3.5-4.5% of magnesium, 7.5-8.5% of zinc, 2.5-3.5% of manganese, 0.9-1.1% of titanium, 1.5-2.5% of chromium and the balance of aluminum, and the upper shell 3 and the lower shell 4 made of aluminum alloy have excellent strength, corrosion resistance and high temperature resistance, the service life of the sensor is prolonged, and the requirement of automation is met.

The utility model provides a die casting die of sensor housing, includes movable mould 1 and cover half 2, the cover half 2 is close to one side of movable mould 1 and is opened there are a plurality of

die cavities

7, 2 surface openings of cover half between die cavity 7 have runner 11, and runner 11 intercommunication die cavity 7, and movable mould 1 is close to one side installation core 9 of cover half 2, and core 9 is just to die cavity 7, fixed hidden account material mouth 10 on the movable mould 1 between core 9, and material mouth 10 is just to the middle part of runner 11, installs cooling module 8 in the cover half 2. The movable die 1 and the fixed die 2 are matched, and molten alloy raw materials are poured into the runner 11 through the material nozzle 10, so that alloy solution enters the cavity 7, the alloy solution is integrally formed in a gap between the cavity 7 and the core 9 to obtain the upper shell 3 and the lower shell 4, integrated processing is realized, and the production efficiency of the sensor shell is improved.

Further, the equal fixed mounting guide post 5 of one side four corners department that movable mould 1 is close to cover half 2, it has guiding hole 6 to open on the cover half 2, and guide post 5 is just to guiding hole 6, and the bottom of guide post 5 is equipped with the chamfer, the movable mould 1 of being convenient for and the compound die of 2 direction of cover half.

The die cavity 7 comprises a first cavity 71 and a second cavity 72, two sides of one side of the fixed die 2 close to the movable die 1 are respectively provided with two first cavities 71 and two second cavities 72, the first cavities 71 and the second cavities 72 are respectively communicated with two ends of the runner 11, four corners of the top surfaces of the first cavities 71 and the second cavities 72 are respectively provided with a connecting lug groove 73, the bottom of one end of the first cavity 71 close to the second cavity 72 is fixedly provided with a fixed core 75, a core pulling mechanism 76 is arranged between the other end of the first cavity 71 and the movable die 1, the top surfaces of the middle parts of two sides of the second cavity 72 are respectively provided with a mounting seat groove 74, the die core 9 comprises an upper shell core 91 and a lower shell core 92, two sides of one side of the movable die 1 close to the fixed die 2 are respectively and fixedly provided with two upper shell cores 91 and two lower shell cores 92, the upper shell core 91 and the lower shell core 92 are respectively opposite to the first cavity 71 and the second cavity 72, four corners of the lower shell core 92 are respectively provided with a mounting column hole 93, the inner cavity and the connecting lug groove 73 of the mounting seat groove 74 are respectively and fixedly provided with a cylindrical core column structure, after the movable die 1 and the fixed die 2 are clamped, the upper shell core 91 and the lower shell core 92 are respectively clamped in the first cavity 71 and the second cavity 72, the edges of the first cavity 71 and the second cavity 72 are sealed, so that the first shell 33 and the second shell 41 are formed by one-time die casting, the fixed core 75 is attached to the upper shell core 91, so that the clamping groove 31 and the through groove 32 are integrally formed on the first shell 33, the first connecting lug 35, the second connecting lug 43, the mounting seat 44 and the mounting column 42 are integrally formed at the connecting lug groove 73, the mounting seat groove 74 and the mounting column hole 93, and the wire hole 34 is integrally formed when the first shell 33 is die cast by the core-pulling mechanism 76, so that one-time die casting is realized, the production efficiency is improved, and the size error caused by secondary processing is avoided.

The core pulling mechanism 76 comprises a sliding chute 761, one side of the fixed die 2, which is far away from the second chamber 72, is provided with a sliding chute 761, one end of the sliding chute 761 is provided with a sealing hole 762 communicated with the first chamber 71, a sliding clamping slide block 763 slides in the sliding chute 761, a movable core 764 is fixedly installed on the outer wall of the slide block 763 and penetrates through the sealing hole 762 in a sliding manner, a spring 768 is installed between the inner wall of the sliding chute 761 between the sealing holes 762 and the outer wall of the slide block 763, the fixed die 2 on the top surface and the bottom surface of the sliding chute 761 is provided with a pushing groove 766, the slide block 763 is provided with an inserting hole 767, the edge of the movable die 1 is fixedly provided with an inserting rod 765, the bottom of the inserting rod 765 is opposite to the inserting hole 767, the movable core 764 and the sealing hole 762 are both in a cylindrical structure, the spring 768 is always in a compressed state, the inserting rod 765 and the inserting hole 767 are both in an inclined cylindrical structure, the width of the pushing groove 766 is equal to the diameter of the inserting rod 765, when the movable die 1 and the fixed die are closed, the inserting rod 765 pushes the sliding block 763 to slide along the sliding groove 761 through the inclined structure, so that the movable core 764 is pushed into the first cavity 71, the wire hole 34 is formed at the position of the movable core 764 during die casting, the inserting rod 765 moves upwards during die opening, so that the sliding block 763 is pulled to be away from the first cavity 71, the movable core 764 completely slides into the sealing hole 762, the upper shell 3 is separated from the die-casting molding process, the demolding of the upper shell 3 is facilitated, and the integral molding of the wire hole 34 is realized.

Cooling unit 8 includes

coil pipe

81, 2 internal fixation of cover half bottom die cavity 7 cup joints coil pipe 81, coil pipe 81 constitutes for a plurality of U type pipe end to end, the equal fixed mounting flood peak 83 of one end of keeping away from mutually of two coil pipes 81, the fixed outer wall that runs through cover half 2 of flood peak 83, fixed connection connecting pipe 82 between the one end that coil pipe 81 is close to mutually, fixed cover of connecting pipe 82 is in the cover half 2 of runner 11 bottom, connect outside condenser tube through flood peak 83, carry out the quick cooling shaping through the alloy solution of coolant water after to die-casting, obtain upper shell 3 and inferior valve 4, and the production efficiency is improved.

When in use, the movable die 1 and the fixed die 2 are closed, molten alloy raw materials are poured into the runner 11 through the material nozzle 10, so that alloy solution enters the cavity 7, the upper shell core 91 and the lower shell core 92 are respectively clamped into the first cavity 71 and the second cavity 72, the edges of the first cavity 71 and the second cavity 72 are sealed, the first shell 33 and the second shell 41 are formed by one-time die casting, the fixed core 75 is attached to the upper shell core 91, so that the clamping groove 31 and the through groove 32 are integrally formed on the first shell 33, the first connecting lug 35, the second connecting lug 43, the mounting seat 44 and the mounting column 42 are integrally formed at the connecting lug groove 73, the mounting seat groove 74 and the mounting column hole 93, when the movable die 1 and the fixed die 2 are closed, the inserting rod 765 is inserted into the inserting hole 767, and along with the downward movement of the inserting rod 765, the inserting rod 765 pushes the sliding block 763 to slide along the sliding groove 761 through the inclined structure, so that the movable core 764 is pushed into the first cavity 71, when the die casting is performed, the wire hole 34 is formed at the movable core 764, when the die is opened, the inserting rod 765 moves upwards, so as to pull the slider 763 to be far away from the first cavity 71, the movable core 764 completely slides into the sealing hole 762, so as to be separated from the die-cast upper case 3, so as to facilitate demolding of the upper case 3, and to achieve integral molding of the wire hole 34, so as to achieve one-step die-casting molding, so as to improve the production efficiency and avoid dimensional errors caused by secondary processing, the mounting post 42 of the inner cavity of the second case 41 facilitates mounting of the sensor electrical component, the first case 33 and the second case 41 are aligned and connected by the bolt through the first connecting lug 35 and the second connecting lug 43, so as to achieve assembly of the sensor case, so as to facilitate clamping of glass or plastic with a transparent structure through the through groove 32 and the clamping groove 31, so as to facilitate emission and reception of an infrared or laser sensor light source, and also can be used for display of a temperature sensor, and facilitate line connection through the wire hole 34, it is fixed between sensor and automation equipment to be convenient for through mount pad 44, and it is convenient to use, and the epitheca 3 and the inferior valve 4 made through the aluminum alloy have good intensity and corrosion-resistant and high temperature resistance, improve the sensor life-span, satisfy the automation and carry out the demand.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A sensor housing comprising an upper shell (3) and a lower shell (4), characterized in that: the upper shell (3) comprises a first shell (33), the lower shell (4) comprises a second shell (41), the first shell (33) is closely attached to the second shell (41), and the edges of the first shell (33) and the second shell (41) close to one end are respectively provided with a first connecting lug (35) and a second connecting lug (43) in an integrated forming way, one end of the first shell (33) far away from the second shell (41) is provided with a clamping groove (31), a through groove (32) is formed at the bottom of the clamping groove (31), the through groove (32) is communicated with the inner cavity of the first shell (33), the end face of one end of the first shell (33) far away from the clamping groove (31) is provided with two line holes (34), the middle parts of the outer walls of the two sides of the second shell (41) are integrally formed with mounting seats (44), and mounting columns (42) are integrally formed at the four corners of the inner cavity of the second shell (41).

2. A sensor housing as claimed in claim 1, wherein: one side of the first shell (33) far away from the second shell (41) is of an arc-shaped structure, the clamping groove (31) and the through groove (32) form a T-shaped structure, and the thickness of the mounting seat (44) is equal to the height of the outer wall of the second shell (41).

3. A sensor housing as claimed in claim 1, wherein: the upper shell (3) and the lower shell (4) comprise the following raw materials in percentage by mass: 9.5 to 11.5 percent of silicon, 2.5 to 3.5 percent of copper, 0.5 to 0.75 percent of nickel, 3.5 to 4.5 percent of magnesium, 7.5 to 8.5 percent of zinc, 2.5 to 3.5 percent of manganese, 0.9 to 1.1 percent of titanium, 1.5 to 2.5 percent of chromium and the balance of aluminum.

4. The utility model provides a die casting die of sensor housing, includes movable mould (1) and cover half (2), its characterized in that: one side that cover half (2) is close to movable mould (1) is opened there are a plurality of die cavities (7), cover half (2) surface between die cavity (7) is opened there are runner (11), and runner (11) intercommunication die cavity (7), movable mould (1) is close to one side installation core (9) of cover half (2), core (9) are just to die cavity (7), fixed secret account material mouth (10) are gone up in movable mould (1) between core (9), material mouth (10) are just to the middle part of runner (11), install cooling module (8) in cover half (2).

5. A die-casting mold for a sensor housing as claimed in claim 4, wherein: the equal fixed mounting guide post (5) of one side four corners department that movable mould (1) is close to cover half (2), it has guiding hole (6) to open on cover half (2), guiding hole (6) are just to guiding hole (5), and the bottom of guiding hole (5) is equipped with the chamfer.

6. A die-casting mold for a sensor housing as claimed in claim 4, wherein: the die cavity (7) comprises a first cavity (71) and a second cavity (72), two first cavities (71) and two second cavities (72) are respectively formed in two sides of one side, close to the movable die (1), of the fixed die (2), the first cavities (71) and the second cavities (72) are respectively communicated with two ends of the runner (11), connecting lug grooves (73) are respectively formed in four corners of the top surfaces of the first cavity (71) and the second cavity (72), a fixed core (75) is fixedly installed at the bottom of one end, close to the second cavity (72), of the first cavity (71), a core pulling mechanism (76) is arranged between the other end of the first cavity (71) and the movable die (1), and installing seat grooves (74) are respectively formed in the top surfaces of the middle portions of two sides of the second cavity (72).

7. A die-casting mold for a sensor housing as claimed in claim 6, wherein: the core pulling mechanism (76) comprises a sliding groove (761), one side, far away from the second cavity (72), of the fixed die (2) is provided with the sliding groove (761), one end of the sliding groove (761) is provided with a sealing hole (762) communicated with the first cavity (71), a sliding clamping sliding block (763) slides in the sliding groove (761), a movable core (764) is fixedly installed on the outer wall of the sliding block (763), the movable core (764) penetrates through the sealing hole (762) in a sliding mode, a spring (768) is installed between the inner wall of the sliding groove (761) between the sealing holes (762) and the outer wall of the sliding block (763), pushing grooves (766) are formed in the fixed die (2) on the top surface and the bottom surface of the sliding groove (761), an inserting hole (767) is formed in the sliding block (763), an inserting rod (765) is fixedly installed on the edge of the movable die (1), and the bottom of the inserting rod (765) is opposite to the inserting hole (7).

8. A die-casting mold for a sensor housing as claimed in claim 7, wherein: the movable core (764) and the sealing hole (762) are both cylindrical structures, the spring (768) is always in a compressed state, the insert rod (765) and the insert hole (767) are both inclined cylindrical structures, and the width of the push groove (766) is equal to the diameter of the insert rod (765).

9. A die-casting mold for a sensor housing as claimed in claim 4, wherein: core (9) include epitheca core (91) and lower casing core (92), one side both sides that movable mould (1) is close to cover half (2) are two epitheca cores (91) of fixed mounting and lower casing core (92) respectively, epitheca core (91) and lower casing core (92) are just to first cavity (71) and second cavity (72) respectively, the four corners department of lower casing core (92) has all opened erection column hole (93), equal fixed mounting has the stem of cylinder structure in the inner chamber and connection ear groove (73) of erection column hole (93) and mount pad groove (74).

10. A die-casting mold for a sensor housing as claimed in claim 4, wherein: cooling unit (8) include coil pipe (81), cover coil pipe (81) in fixed die (2) the bottom of die cavity (7), coil pipe (81) constitute for a plurality of U type pipe end to end, two the equal fixed mounting flood peak (83) of one end of keeping away from mutually of coil pipe (81), flood peak (83) are fixed to be run through the outer wall of fixed die (2), fixed connection connecting pipe (82) between the one end that coil pipe (81) are close to mutually, connecting pipe (82) are fixed to be cup jointed in fixed die (2) of runner (11) bottom.