Accurate positioning lamp shell mold

Abstract

The utility model relates to the field of molds, and discloses an accurate positioning lamp shell mold which comprises a fixed mold body, a movable mold body is arranged on the top face of the fixed mold body, first connecting blocks are fixedly installed on the left side and the right side of the fixed mold body correspondingly, and second connecting blocks corresponding to the first connecting blocks are fixedly installed on the left side and the right side of the movable mold body correspondingly; a positioning groove is formed in the top face of the first connecting block, certain pressure can be applied to the pressure sensors after the extrusion columns make contact with the pressure sensors, at the moment, the pressure sensors transmit pressure values to a pressure displayer through voltage signals, and when a positioning shaft or a positioning rod is abraded, the pressure values on the pressure sensors on the two sides are different. In this way, a person on the side observes and records the changed pressure value, and when the difference between the pressure values on the two sides is large, the person can detect the positioning structures on the fixed mold and the movable mold through professional equipment at the moment, so that the person can detect the precision when the fixed mold and the movable mold are matched in time, and the quality and precision of the injection molding mold are improved.

Description

Technical Field

[0001] The present application belongs to the field of mold technology, and specifically relates to a lamp housing mold with precise positioning. Background Art

[0002] Lamp housing molds are molds used to produce lamp housings. When making lamps, it is usually necessary to process metal, plastic or other materials into housings of various shapes to accommodate lighting equipment and provide appearance decoration. Lamp housing molds are tools used to make these housings.

[0003] For example, the utility model patent with announcement number CN217257989U discloses a precisely positioned lamp housing mold, including a mold, the mold including a movable module and a fixed module, the movable module and the fixed module are respectively provided with an upper mold and a lower mold, the movable module is provided with a positioning component, the positioning component includes a positioning recess provided on the upper mold, and a positioning protrusion provided on the lower mold, the number of the positioning recesses is four and is evenly distributed around the lower mold, the positioning recesses correspond to the positioning protrusions one by one, and a buffer is also provided on the fixed module. The utility model has the following advantages and effects: the positioning protrusion cooperates with the positioning recess to accurately perform positioning, thereby ensuring the product molding effect.

[0004] When the moving module and the fixed module are used together for a long time, the positioning protrusion will have a certain amount of wear, which will cause deviation when the moving module and the fixed module are matched. A small deviation will not have much impact on the molding quality of the product. When the deviation is large, it will affect the molding quality of the product. However, the device cannot detect the deviation value generated when the moving module and the fixed module are matched together well, so that personnel can promptly discover and adjust the deviation when the moving module and the fixed module are matched. For this purpose, a lamp housing mold with precise positioning is provided. Utility Model Content

[0005] The purpose of the present application is to provide a lamp housing mold with precise positioning in order to solve the above-mentioned problems.

[0006] The technical solution adopted by the present application is as follows: a precisely positioned lamp housing mold, comprising a fixed mold, a movable mold is arranged on the top surface of the fixed mold, a connecting block 1 is fixedly installed on the left and right sides of the fixed mold, a connecting block 2 corresponding to the connecting block 1 is fixedly installed on the left and right sides of the movable mold, a positioning groove is provided on the top surface of the connecting block 1, a positioning rod corresponding to the positioning groove is provided on the bottom surface of the connecting block 2, the positioning rod is inserted into the inside of the positioning groove, and a displacement detection mechanism is arranged inside the connecting block 1;

[0007] The offset detection mechanism includes an installation cavity, a installation block, an abutment block, a reset spring, a pressure sensor, an extrusion column and a pressure display. Two installation cavities are symmetrically opened inside the connecting block one, and the two installation cavities are communicated with the positioning groove. A installation block is arranged inside the installation cavity, an abutment block is fixedly installed on the front end of the installation block, a reset spring is fixedly installed on the inner side wall of the installation cavity, and one end of the reset spring away from the inner side wall of the installation cavity is fixed to the rear side of the abutment block. Two pressure sensors are symmetrically fixedly installed on the sides of the connecting block one, and the detection ends of the two pressure sensors extend into the interior of the installation cavity, an extrusion column is fixedly installed on the rear side of the installation block, and a pressure display is fixedly installed on the front side of the connecting block one, and the pressure sensor is electrically connected to the pressure display.

[0008] In a preferred embodiment, four positioning holes are opened on the top surface of the movable mold, and positioning sleeves are fixedly installed on the inner side walls of the four positioning holes, and four positioning shafts corresponding to the positioning sleeves are fixedly installed on the top surface of the fixed mold.

[0009] In a preferred embodiment, a circular groove is formed on the top surface of the movable mold, a mounting seat is fixedly installed inside the circular groove by means of bolts, and an injection tube is fixedly installed near the middle of the circular groove.

[0010] In a preferred embodiment, a limit block is fixedly installed inside the installation cavity, and a through hole is opened in the middle of the limit block, and one end of the abutment block passes through the through hole and extends to the inside of the positioning groove.

[0011] In a preferred embodiment, the left and right sides of the movable mold are threadedly connected with hanging rings.

[0012] In a preferred embodiment, water-cooling circulation pipes are fixedly installed on the left and right sides of the fixed mold respectively.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0014] 1. In the present application, due to the adoption of the above-mentioned scheme, when the movable mold and the fixed mold are assembled together, the positioning rod will be inserted into the inside of the positioning groove, and the arc-shaped end of the positioning rod will contact the arc-shaped end of the abutment block. At this time, the abutment block compresses the reset spring under the left and right sides of the extrusion force of the positioning rod to move toward the inside of the installation cavity and make the extrusion column contact the pressure sensor. After the extrusion column contacts the pressure sensor, it will apply a certain pressure to it. At this time, the pressure sensor transmits the pressure value to the pressure display through a voltage signal, which is convenient for personnel to observe the pressure value of the extrusion column acting on the pressure sensor. When the positioning shaft or the positioning rod is worn during long-term use, the pressure values ​​on the pressure sensors on both sides will be different. In this way, the side personnel observe and record the changed pressure values. When the difference between the pressure values ​​on both sides is large, the personnel can use professional equipment to detect the positioning structure on the fixed mold and the movable mold, so that the personnel can timely detect the accuracy of the fixed mold and the movable mold when they cooperate, thereby improving the quality and precision of the injection molding mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of this application;

[0016] Figure 2 This is a schematic diagram of the positioning shaft structure of this application;

[0017] Figure 3 This is a schematic diagram of the internal structure of the connection block of this application;

[0018] Figure 4 This is a partial structural explosion diagram of the present application.

[0019] Markings in the figure: 1. Fixed mold; 2. Moving mold; 3. Positioning hole; 4. Positioning sleeve; 5. Positioning shaft; 6. Connecting block 1; 7. Connecting block 2; 8. Positioning groove; 9. Positioning rod; 10. Offset detection mechanism; 11. Mounting cavity; 12. Mounting block; 13. Abutment block; 14. Reset spring; 15. Pressure sensor; 16. Extrusion column; 17. Pressure display; 18. Circular groove; 19. Mounting seat; 20. Injection tube; 21. Limit block; 22. Through hole; 23. Lifting ring; 24. Water-cooling circulation pipe. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0021] refer to Figure 1-Figure 4A precisely positioned lamp housing mold comprises a fixed mold 1, a movable mold 2 is arranged on the top surface of the fixed mold 1, a circular groove 18 is opened on the top surface of the movable mold 2, a mounting seat 19 is fixedly installed inside the circular groove 18 by a bolt, an injection tube 20 is fixedly installed near the middle of the circular groove 18, a hanging ring 23 is threadedly connected on the left and right sides of the movable mold 2, and a water-cooling circulation pipe 24 is fixedly installed on the left and right sides of the fixed mold 1 respectively; the provided mounting seat 19 facilitates the protection of the injection tube 20, the provided injection tube 20 facilitates the delivery of liquid to the mold cavity on the top surface of the fixed mold 1, and facilitates the molding operation of the lamp housing, the provided hanging ring 23 facilitates the lifting of the movable mold 2, and the provided water-cooling circulation pipe 24 facilitates the cooling water to enter the interior of the fixed mold 1 through the water inlet pipe installed on the side of the fixed mold 1 and circulate through the water-cooling circulation pipe 24, thereby facilitating the cooling treatment of the molding mold.

[0022] refer to Figure 1 , Figure 3 and Figure 4 Four positioning holes 3 are provided on the top surface of the movable mold 2, and positioning sleeves 4 are fixedly installed on the inner walls of the four positioning holes 3, and four positioning shafts 5 corresponding to the positioning sleeves 4 are fixedly installed on the top surface of the fixed mold 1; through the provided positioning holes 3, positioning sleeves 4 and positioning shafts 5, the positioning and matching of the fixed mold 1 and the movable mold 2 are facilitated to improve the accuracy.

[0023] refer to Figure 1 , Figure 2 and Figure 3 A connecting block 6 is fixedly installed on the left and right sides of the fixed mold 1, and a connecting block 2 7 corresponding to the connecting block 6 is fixedly installed on the left and right sides of the movable mold 2. A positioning groove 8 is provided on the top surface of the connecting block 6, and a positioning rod 9 corresponding to the positioning groove 8 is provided on the bottom surface of the connecting block 2 7. The positioning rod 9 is inserted into the inside of the positioning groove 8, so that the fixed mold 1 and the movable mold 2 are conveniently positioned and matched.

[0024] refer to Figure 1 , Figure 2 and Figure 3 An offset detection mechanism 10 is arranged inside the connecting block 6, and the offset detection mechanism 10 includes an installation cavity 11, a mounting block 12, an abutment block 13, a reset spring 14, a pressure sensor 15, an extrusion column 16 and a pressure display 17. Two installation cavities 11 are symmetrically arranged inside the connecting block 6, and the two installation cavities 11 are both connected to the positioning groove 8. A mounting block 12 is arranged inside the installation cavity 11, and an abutment block 13 is fixedly installed at the front end of the installation block 12; through the setting of the installation cavity 11, it is convenient for personnel to install the installation block 12 and the abutment block 13 inside it.

[0025] refer to Figure 1 , Figure 3A return spring 14 is fixedly installed on the inner wall of the installation cavity 11, and one end of the return spring 14 away from the inner wall of the installation cavity 11 is fixed to the rear side of the abutment block 13. Two pressure sensors 15 are symmetrically fixedly installed on the sides of the connecting block 6, and the detection ends of the two pressure sensors 15 extend to the interior of the installation cavity 11. An extrusion column 16 is fixedly installed on the rear side of the installation block 12, and a pressure display 17 is fixedly installed on the front side of the connecting block 6. The pressure sensor 15 is electrically connected to the pressure display 17; the ends of the positioning rod 9 and the abutment block 13 are both arc-shaped structures. When the positioning rod 9 contacts the abutment block 13, the abutment block 13 compresses the return spring 14 to move toward the inside of the installation cavity 11 and makes the extrusion column 16 contact with the pressure sensor 15. When the extrusion column 16 contacts the pressure sensor 15, a certain extrusion force will be generated, so that the pressure sensor 15 can transmit the pressure value to the pressure display 17 through an electrical signal, which is convenient for personnel to observe the pressure value.

[0026] The implementation principle of an embodiment of a precisely positioned lamp housing mold of the present application is as follows: the user first assembles the movable mold 2 and the fixed mold 1 together, and the positioning sleeve 4 and the positioning shaft 5 are provided to facilitate positioning of the movable mold 2 and the fixed mold 1 during assembly to improve accuracy. When the movable mold 2 and the fixed mold 1 are assembled together, the positioning rod 9 will be inserted into the interior of the positioning groove 8, and the arc-shaped end of the positioning rod 9 will contact the arc-shaped end of the abutment block 13. At this time, the abutment block 13 compresses the reset spring 14 under the left and right squeezing force of the positioning rod 9 to move toward the interior of the installation cavity 11 and make the squeezing column 16 contact the pressure sensor 15. After the squeezing column 16 contacts the pressure sensor 15, it will exert pressure on it. A certain pressure, at this time the pressure sensor 15 transmits the pressure value to the pressure display 17 through a voltage signal, so that personnel can observe the pressure value of the extrusion column 16 acting on the pressure sensor 15. When the positioning shaft 5 or the positioning rod 9 is worn during long-term use, the pressure values ​​on the pressure sensors 15 on both sides will be different. In this way, the side personnel observe and record the changed pressure values. When the pressure value difference on both sides is large, the personnel can use professional equipment to detect the positioning structure on the fixed mold 1 and the movable mold 2, so that the personnel can timely detect the accuracy of the matching of the fixed mold 1 and the movable mold 2, thereby improving the quality and precision of the injection molding mold.

[0027] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A precisely positioned lamp housing mold, comprising a fixed mold (1), characterized in that: The top surface of the fixed mold (1) is provided with a movable mold (2), the left and right sides of the fixed mold (1) are respectively fixedly provided with a connecting block 1 (6), the left and right sides of the movable mold (2) are respectively fixedly provided with a connecting block 2 (7) corresponding to the connecting block 1 (6), the top surface of the connecting block 1 (6) is provided with a positioning groove (8), the bottom surface of the connecting block 2 (7) is provided with a positioning rod (9) corresponding to the positioning groove (8), the positioning rod (9) is inserted into the inside of the positioning groove (8), and the inside of the connecting block 1 (6) is provided with a displacement detection mechanism (10); The displacement detection mechanism (10) comprises a mounting cavity (11), a mounting block (12), an abutment block (13), a reset spring (14), a pressure sensor (15), an extrusion column (16) and a pressure display (17); two mounting cavities (11) are symmetrically provided inside the connection block (6), and both mounting cavities (11) are connected to the positioning groove (8); a mounting block (12) is provided inside the mounting cavity (11); an abutment block (13) is fixedly installed at the front end of the mounting block (12); and an inner wall of the mounting cavity (11) is fixedly installed with a pressure sensor (15). A return spring (14) is provided, and one end of the return spring (14) away from the inner wall of the installation cavity (11) is fixed to the rear side of the abutment block (13); two pressure sensors (15) are symmetrically fixedly installed on the side of the connection block (6), and the detection ends of the two pressure sensors (15) extend into the interior of the installation cavity (11); an extrusion column (16) is fixedly installed on the rear side of the installation block (12); a pressure display (17) is fixedly installed on the front side of the connection block (6); and the pressure sensor (15) is electrically connected to the pressure display (17).

2. The precisely positioned lamp housing mold according to claim 1, characterized in that: The top surface of the movable mold (2) is provided with four positioning holes (3), and the inner side walls of the four positioning holes (3) are fixedly mounted with positioning sleeves (4), and the top surface of the fixed mold (1) is fixedly mounted with four positioning shafts (5) corresponding to the positioning sleeves (4).

3. The precisely positioned lamp housing mold according to claim 1, characterized in that: A circular groove (18) is provided on the top surface of the movable mold (2), a mounting seat (19) is fixedly mounted inside the circular groove (18) by means of provided bolts, and an injection molding tube (20) is fixedly mounted near the middle of the circular groove (18).

4. The precisely positioned lamp housing mold according to claim 1, characterized in that: A limit block (21) is fixedly installed inside the installation cavity (11), and a through hole (22) is provided in the middle of the limit block (21), and one end of the abutment block (13) passes through the through hole (22) and extends to the inside of the positioning groove (8).

5. The precisely positioned lamp housing mold according to claim 1, characterized in that: The left and right sides of the movable mold (2) are threadedly connected with hanging rings (23).

6. The precisely positioned lamp housing mold according to claim 1, characterized in that: Water cooling circulation pipes (24) are fixedly mounted on the left and right sides of the fixed mold (1).

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