CN211683052U - A positioning structure for mold - Google Patents

Abstract

The utility model discloses a positioning structure for a mold, which comprises a movable mold and a fixed mold. The movable mold is provided with a positioning groove, and a positioning convex block is arranged at the corresponding position of the fixed mold, and further comprises a positioning sheet and a fixed mold. and a locking mechanism, using the locking mechanism to install the positioning piece on the side walls of the positioning groove and the positioning projection. The utility model avoids direct wear between the positioning bump and the positioning groove through the installation of the positioning piece, and reduces the cost of the mold; and the locking mechanism has a simple structure, realizes the rapid disassembly and assembly of the positioning piece, and is more convenient to operate than screw fixing. Simple and reliable. The fixing mechanism is installed separately from the positioning bump and the positioning groove, which reduces the processing difficulty of the fixing mechanism and facilitates installation.

Description

A positioning structure for mold

technical field

The utility model relates to the field of moulds, in particular to a positioning structure for moulds.

Background technique

Diode packaging is to set the mold box on the moving mold, place the diodes to be packaged on the material rack, and then place the material rack on the moving mold, so that the packaging parts of hundreds of diodes on the material rack are placed on the mold box. If the movable mold and the fixed mold are misaligned, glue leakage may occur. Therefore, existing manufacturers usually use positioning bumps and positioning grooves for mold clamping and positioning. ; However, when the mold is opened and closed for a long time, the positioning bumps and positioning grooves are worn, which may still cause the fixed mold and the movable mold to be unable to be accurately closed.

Utility model content

In view of the above-mentioned defects in the prior art, the main purpose of the present invention is to overcome the deficiencies of the prior art, and discloses a positioning structure for a mold, including a movable mold and a fixed mold, and a positioning structure is arranged on the movable mold a groove, and a positioning bump is arranged at the corresponding position of the fixed die, and it is characterized in that it also includes a positioning piece and a locking mechanism, and the positioning piece is installed in the positioning groove and the positioning bump by using the locking mechanism. side wall.

Further, the locking mechanism includes a locking block, a spring, a locking lever and a fixing mechanism, two ends of the locking lever are respectively provided with a first locking portion and a second locking portion, and the spring is sleeved on the locking lever, A accommodating cavity for accommodating the spring is recessed on the locking block, and a first through hole is set at the bottom of the accommodating cavity, a second through hole is set at the corresponding position of the fixed die and the movable die, and the fixing mechanism is set at In the second through hole, one end of the locking rod is inserted into the second through hole through the first through hole, and is connected with the fixing mechanism by the first locking part, and the two ends of the spring are connected. The ends are respectively connected with the locking block and the second locking portion.

Further, the fixing mechanism includes a body and a locking groove provided at an end of the body.

Further, a limit groove is set at the opening of the accommodating cavity, and a limit block is set on the side of the second locking portion. When the first locking portion is locked with the fixing mechanism, the limit block is placed on the in the limit slot.

Further, the surface of the second locking portion is provided with an inner hexagonal hole.

Further, a groove for matching with the locking block is recessed on the positioning piece.

Further, when the locking block is arranged in the groove, the surface of the locking block is lower than the surface of the groove.

Further, at least one positioning convex point is set on the positioning piece, and a positioning concave point matched with the positioning convex point is set at the corresponding position on the movable mold and the fixed mold.

Further, the edge of the positioning block is provided with a chamfer.

Further, the thickness of the locking groove is greater than the thickness of the first locking portion.

The beneficial effects obtained by the utility model:

The utility model avoids direct wear between the positioning bump and the positioning groove through the installation of the positioning piece, and reduces the cost of the mold; and the locking mechanism has a simple structure, realizes the rapid disassembly and assembly of the positioning piece, and is more convenient to operate than screw fixing. Simple and reliable. The fixing mechanism is installed separately from the positioning bump and the positioning groove, which reduces the processing difficulty of the fixing mechanism and facilitates installation.

Description of drawings

Fig. 1 is the use state diagram of a kind of positioning structure for mould of the present invention;

2 is a perspective view of a positioning structure for a mold according to the present invention;

Fig. 3 is the top view of Fig. 2;

Fig. 4 is the A-A sectional view of Fig. 3;

Figure 5 is an exploded view of the locking mechanism;

Figure 6 is a cross-sectional view of the locking lever and the locking block;

7 is a schematic structural diagram of a locking block;

8 is a schematic structural diagram of a locking lever;

9 is a schematic structural diagram of a fixing mechanism;

Figure 10 is an enlarged view of A in Figure 1;

11 is a schematic structural diagram of a positioning sheet;

FIG. 12 is a schematic view of the structure of FIG. 10 from another perspective;

The reference numbers are as follows:

1. Positioning piece, 2. Locking mechanism, 3. Second through hole, 11, Groove, 12, Positioning bump, 21, Locking block, 8. Moving die, 9. Fixed die, 21, Locking hole, 22, Spring, 23, Locking lever, 24, Fixing mechanism, 81, Positioning groove, 91, Positioning bump, 211, Receiving cavity, 212, First through hole, 213, Limiting groove, 214, Rotation space, 231, No. A locking portion, 232, a second locking portion, 233, a limit block, 241, a body, 242, a locking groove.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

A positioning structure for a mold, as shown in FIG. 1, includes a movable mold 8 and a fixed mold 9, the movable mold 8 is provided with a positioning groove 81, and a positioning bump 91 is set at the corresponding position of the fixed mold 9, and also includes The positioning piece 1 and the locking mechanism 2 are used to install the positioning piece 1 on the side walls of the positioning groove 81 and the positioning protrusion 91 by using the locking mechanism 2 . In this way, the contact surface between the positioning groove 81 and the positioning projection 91 can be prevented from being worn, and only the positioning sheet 1 needs to be replaced through the installation of the positioning sheet 1, which reduces the maintenance cost of the mold. Usually, the positioning piece 1 is directly fixed on the side walls of the positioning groove 81 and the positioning protrusion 91 by screws.

In the above-mentioned embodiment, there are certain defects in fixing by screws. For example, when the screw is locked to the positioning piece 1, it needs to be rotated for several times; especially when the positioning piece 1 is installed in the positioning groove 81, the screwdriver cannot even be placed horizontally. It can be seen that it is very inconvenient to rotate the screw. Therefore, in one embodiment, as shown in FIGS. 1-10 , the locking mechanism 2 includes a locking block 21 , a spring 22 , a locking lever 23 and a fixing mechanism 24 , and two ends of the locking lever 23 are respectively provided with a first locking portion 231 and a first locking portion 231 Two locking parts 232, the spring 22 is sleeved on the locking rod 23, the locking block 21 is recessed with a receiving cavity 211 for accommodating the spring 22, and a first through hole 212 is opened at the bottom of the receiving cavity 211. A second through hole 3 is provided at the corresponding position of , the first locking portion 231 is connected to the fixing mechanism 24 , and the second locking portion 232 is elastically connected to the bottom of the accommodating cavity 211 through the spring 22 . That is, both ends of the spring 22 are respectively connected with the second locking portion 232 and the bottom of the accommodating cavity 211 .

Wherein, as shown in FIGS. 1-10 , the fixing mechanism 24 includes a main body 241 and a locking groove 242 provided at the end of the main body 241 . The first locking portion 231 is a locking block extending to the side, and the first locking portion 231 is rotated into the locking groove 242 by the rotation of the locking lever 23 . Specifically, when the positioning bump 91 is installed, a second through hole 3 is horizontally opened on the positioning bump 91 , the two ends of the main body 241 are provided with locking grooves 242 , and a lock is provided on the side wall of the locking lever 24 . and a through hole corresponding to the locking hole is provided at the corresponding position of the positioning bump 91, the lock pin is inserted into the locking hole through the through hole, the fixing mechanism 24 is connected with the positioning bump 91 by the locking pin, and the fixing mechanism 24 turn. In addition, the installation method of the fixing mechanism 24 of the positioning groove 81 is the same as that of the installation of the positioning protrusion 91 , the difference is that only one end of the main body 241 needs to be provided with the locking groove 242 . Preferably, the thickness of the locking groove 242 is greater than the thickness of the first locking portion 231; so as to facilitate the first locking portion 231 to enter the locking groove 242.

In one embodiment, as shown in FIGS. 1-10 , in order to prevent the locking lever 23 from rotating during use, a limiting groove 213 is provided at the opening of the accommodating cavity 211 , and a limiting block 233 is provided on the side of the second locking portion 232 ; That is, a rotation space 214 allowing the rotation of the limiting block 233 is formed between the limiting groove 231 and the accommodating cavity 211 . When the first locking portion 231 is locked with the fixing mechanism 24 , the limiting block is placed in the limiting groove. When in use, push the locking rod 23 to move along its axial direction, so that the spring 22 is compressed, the limit block 233 enters the rotation space 214, and the locking rod 23 is rotated to connect the first locking part 231 with the fixing mechanism 24, and at the same time, the limit block 233 enters the limiting groove 213, and the elastic force of the spring 22 is used to make the positioning piece 1 closely fit with the positioning groove 81 and the positioning protrusion 91.

As shown in FIG. 8 , in order to facilitate the installation of the locking rod 23 and the fixing mechanism 24 , an inner hexagonal hole is provided on the surface of the second locking portion 232 . The rotation of the locking rod 23 can be achieved by an Allen key.

In one embodiment, as shown in FIGS. 1-12 , a groove 11 for matching with the locking block 21 is recessed on the positioning piece 1 . Preferably, when the locking block 21 is arranged in the groove 11, the surface of the locking block 21 is lower than the surface of the groove 11. Thus, the normal use of the positioning sheet 1 is not affected.

In one embodiment, as shown in FIGS. 1-12 , at least one positioning bump 12 is protruded on the positioning sheet 1 , and the corresponding positions on the movable mold 8 and the fixed mold 9 are set to match the positioning bumps 11 . Pits. Usually, four positioning bumps 12 are provided in a rectangular arrangement, and correspondingly, four positioning concave points are also set; when the positioning sheet 1 is installed, the positioning convex points 12 are installed into the positioning concave points to realize the alignment of the positioning sheet 1 positioning; and then fix the positioning piece through the locking mechanism 2.

In one embodiment, as shown in FIGS. 1-12 , the edge of the positioning block 1 is provided with a chamfer. In order to facilitate the positioning bumps 91 to enter the positioning grooves 81, the positioning of the mold is realized.

When the utility model is in use, as shown in Figures 1-12, taking the positioning sheet 1 installed on the positioning projection 91 as an example, first, insert the positioning projection 12 of the positioning sheet 1 into the positioning concave point, and then determine the positioning First, install the locking block 21 into the groove 11, push the locking rod 23 to move axially, so that the spring 22 is compressed, and rotate the locking rod 23, so that the first locking part 231 enters the locking groove 242, and at the same time the limiting block 233 enters the limiting groove 213, so that the limiting rod 23 can only move axially and cannot rotate, thereby ensuring that the first locking portion 231 and the fixing mechanism 24 are always in the same position during use. Locked state; when disassembling the positioning piece, it is only necessary to push the locking rod 23 to move it axially. When the limiting block 233 enters the rotating space 214, the locking rod 23 is rotated to make the first locking portion 231 leave the locking groove 242, and then The locking mechanism 2 can be taken out.

The above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention; if the present invention is not deviated from the spirit and scope of the present invention, any modification or equivalent replacement of the present invention shall be included in the present invention. within the protection scope of the claims.

Claims (10)

1. The utility model provides a location structure for mould, includes movable mould and cover half, set up positioning groove on the movable mould, and the corresponding position of cover half sets up the location lug, its characterized in that still includes spacer and locking mechanical system, utilizes locking mechanical system will the spacer is installed positioning groove and positioning lug's lateral wall.

2. The positioning structure for the mold according to claim 1, wherein the locking mechanism comprises a locking block, a spring, a locking rod and a fixing mechanism, the two ends of the locking rod are respectively provided with a first locking portion and a second locking portion, the spring is sleeved on the locking rod, the locking block is concavely provided with an accommodating cavity for accommodating the spring, a first through hole is arranged at the bottom of the accommodating cavity, the corresponding positions of the fixed mold and the movable mold are provided with a second through hole, the fixing mechanism is arranged in the second through hole, one end of the locking rod passes through the first through hole and is inserted into the second through hole, the locking rod is connected with the fixing mechanism by the first locking portion, and the two ends of the spring are respectively connected with the locking block and the second locking portion.

3. A positioning structure for a mold as set forth in claim 2, wherein said fixing means includes a body and a locking groove provided at an end of said body.

4. The positioning structure for the mold according to claim 2, wherein a limiting groove is provided at the opening of the accommodating cavity, a limiting block is provided at a side of the second locking portion, and the limiting block is disposed in the limiting groove when the first locking portion is locked with the fixing mechanism.

5. A positioning structure for a mold as set forth in claim 2, wherein a surface of the second locking portion is provided with a hexagonal socket.

6. The positioning structure for the mold according to claim 2, wherein the positioning piece is recessed with a groove for engaging with the locking piece.

7. A positioning structure for a mold as set forth in claim 6, wherein a surface of the locking block is lower than a surface of the groove when the locking block is disposed in the groove.

8. The positioning structure for the mold according to claim 1, wherein at least one positioning convex point is convexly provided on the positioning sheet, and positioning concave points matched with the positioning convex points are provided at corresponding positions on the movable mold and the fixed mold.

9. The positioning structure for the mold according to claim 1, wherein the edge of the positioning piece is chamfered.

10. A positioning structure for a mold as claimed in claim 3, wherein the thickness of the locking groove is greater than that of the first locking portion.

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