CN221657711U - A press core travel limit mechanism for a stamping die - Google Patents

Abstract

The utility model provides a pressing core stroke limiting mechanism for a stamping die, and belongs to the technical field of stamping dies. This a press core stroke stop gear for stamping die includes mould and stroke stop gear, press the material core is installed to the bottom of going up the mould, the spacer pin is all installed in the four corners of pressing the material core, the limiting plate is installed to the bottom of spacer pin, the blotter is installed at the top of limiting plate, the four corners at last mould top is seted up to the fixed slot, the inside swing joint of fixed slot has the fixed plate, the connecting hole is seted up at the top of fixed plate, through setting up stroke stop gear, can effectually go up mould and press the material core course of working through limiting plate and blotter cooperation at the spacer pin, carry out rigid connection spacing work to the limiting plate, the spacer pin, go up the mould and press between the material core, the impact force influence appearance position offset's of receiving in the material core course of working in the limiting plate is avoided, consequently, the spacing effect of limiting plate has been improved.

Description

A press core travel limit mechanism for a stamping die

Technical Field

The utility model relates to the technical field of stamping dies, in particular to a pressing core stroke limiting mechanism for a stamping die.

Background Art

A stamping die is a tool that punches or shapes workpieces by moving the punching force up and down. The stamping core is an important component of the stamping die. The stamping core stroke limit mechanism limits the working stroke range of the stamping core to avoid damage to the die due to over-stroke movement of the stamping core during operation. The mechanism is composed of limit pins, limit plates and other components. Since the limit plates mainly bear the limit force during the working process of the limit pins and limit plates, it is necessary to stabilize the limit plate and the limit pins.

In the related art, during the use of the limit pin and the limit plate, a thread is generally provided on the surface of the limit pin, and the limit plate and the limit pin are threadedly connected for use.

However, during the current use of the limit pin and the limit plate, since the limit plate and the limit pin are mainly connected by threads, the threads are easily deformed due to the limiting force of the limit plate, resulting in displacement between the limit plate and the limit pin and changes in the limiting range.

Utility Model Content

In order to make up for the above deficiencies, the utility model provides a stroke limiting mechanism for a punch core of a stamping die, which overcomes the above technical problems or at least partially solves the above problems.

The utility model is achieved in this way:

The utility model provides a pressure core stroke limit mechanism for a stamping die, comprising an upper die, a pressure core is installed at the bottom of the upper die, limiting pins are installed at the four corners of the pressure core, a limiting plate is installed at the bottom of the limiting pin, and a buffer pad is installed at the top of the limiting plate;

A travel limiting mechanism, the travel limiting mechanism comprising:

A fixing groove; the fixing groove is opened at the four corners of the top of the upper mold, and a fixing plate is movably connected inside the fixing groove;

A connecting hole; the connecting hole is opened on the top of the fixing plate, and the limiting pin is movably connected to the inside of the connecting hole;

The limiting cavity is provided on both sides of the fixing plate, the limiting cavity is movably connected to the limiting strip inside, and the limiting strip is engaged with the limiting pin;

Disengagement mechanism; the disengagement mechanism is arranged on both sides of the top of the fixed plate.

In a preferred embodiment, the disengagement mechanism includes a disengagement port, a push groove and a push rod, the disengagement port is opened on both sides of the top of the fixed plate, the push groove is opened at the bottom of the disengagement port, the push groove is connected to the limiting cavity, the push rod is movably connected to the inside of the push groove, and the outer side of the push rod is fixedly connected to the inner side of the limiting strip.

In a preferred solution, a disengagement handle is movably connected inside the disengagement port, the bottom of the disengagement handle is fixedly connected to the top of the push rod, and the disengagement handle is used in conjunction with the push rod.

In a preferred embodiment, limiting grooves are provided on both sides of the limit pin surface, a plurality of the limit grooves are provided, and the plurality of limit grooves are equidistantly distributed, the inner side of the limit strip is located inside the limit groove, and the limit groove is used in conjunction with the limit strip.

In a preferred solution, openings are provided on both sides of the inner wall of the connection hole, the openings are communicated with the limiting cavity, the limiting strip passes through the limiting cavity through the openings, and the openings are used in conjunction with the limiting strip.

In a preferred solution, springs are provided on both sides of the limiting cavity, one end of the spring is fixedly connected to the inner wall of the limiting cavity, and the spring is used in conjunction with the limiting strip and the limiting groove.

In a preferred solution, a contraction groove is provided on the outer side of the limit strip, the other end of the spring is fixedly connected to the inner wall of the contraction groove, and the contraction groove is used in conjunction with the spring.

In a preferred solution, a force-applying groove is provided on the top of the disengagement handle. The force-applying groove is arranged in a rectangular shape and is used in conjunction with the disengagement handle and the push rod.

The utility model provides a stroke limit mechanism for a punch core of a stamping die, and its beneficial effects include:

1. By setting up a travel limit mechanism, the limit pin can effectively cooperate with the upper mold and the pressing core through the limit plate and the buffer pad to perform rigid connection and limit work between the limit plate, the limit pin, the upper mold and the pressing core, so as to avoid the position displacement caused by the impact force of the pressing core during the working process of the limit plate, thereby improving the limiting effect of the limit plate.

2. By setting up a disengagement mechanism, the user can be effectively provided with a medium to push the limit bar out of the limit slot when the limit bar cooperates with the fixed plate and the limit pin through the limit slot, thereby avoiding the situation where the limit bar is difficult to move out of the limit slot during use, thereby improving the flexibility of the use of the limit bar.

3. By setting up the disengagement handle, it is possible to effectively provide the user with a medium for moving the push rod when the push rod is used in conjunction with the limit strip, thereby avoiding the situation where the push rod is difficult to move during use, thereby improving the convenience of using the push rod.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

FIG1 is a perspective view provided by an embodiment of the utility model;

FIG2 is a schematic diagram of a three-dimensional structure of a fixing plate and a limiting pin provided in an embodiment of the present utility model;

FIG3 is a schematic diagram of a three-dimensional cross-sectional structure of a limit strip provided in an embodiment of the present utility model;

FIG4 is a schematic diagram of a three-dimensional cross-sectional structure of a fixing plate provided in an embodiment of the present utility model;

In the figure: 1. upper mold; 2. pressing core; 3. limiting pin; 4. limiting plate; 5. buffer pad; 61. fixing groove; 62. fixing plate; 63. connecting hole; 64. limiting cavity; 65. limiting strip; 71. disengagement port; 72. pushing groove; 73. pushing rod; 8. disengagement handle; 9. limiting groove; 10. opening; 11. spring; 12. contraction groove; 13. force groove.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Example

1-4, the utility model provides a technical solution: a pressure core stroke limiting mechanism for a stamping die, comprising an upper die 1 and a stroke limiting mechanism, a pressure core 2 is installed at the bottom of the upper die 1, and limit pins 3 are installed at the four corners of the pressure core 2, a limit plate 4 is installed at the bottom of the limit pin 3, and a buffer pad 5 is installed on the top of the limit plate 4, which can effectively assemble the limit pin 3, the limit plate 4, the upper die 1 and the pressure core 2, so that the limit pin 3 can limit the stroke of the pressure core 2 through the limit plate 4 during the working process, and the limit pin 3, the limit plate 4, the upper die 1 and the pressure core 2 are rigidly connected to limit the working process, so as to avoid the limit range change caused by the impact force of the pressure core 2 during the working process of the limit pin 3 and the limit plate 4.

1-4, in a preferred embodiment, a travel limit mechanism is provided, including a fixed groove 61, a fixed plate 62, a connecting hole 63, a limit cavity 64, a limit strip 65 and a disengagement mechanism. The fixed groove 61 is provided at the four corners of the top of the upper mold 1, and the fixed groove 61 is internally movably connected with the fixed plate 62. The connecting hole 63 is provided at the top of the fixed plate 62. The limit pin 3 is movably connected to the inside of the connecting hole 63. The limit cavity 64 is provided at both sides of the inside of the fixed plate 62. The inside of the limit cavity 64 is movably connected with the limit strip 65. The limit strip 65 is snap-fitted with the limit pin 3. The disengagement mechanism is provided on both sides of the top of the fixed plate 62. Since the limit strip 65 is movably connected to the inside of the limit cavity 64 and snap-fitted with the limit pin 3, and the fixed plate 62 is movably connected to the limit pin 3 through the connecting hole 63, it can In the process of effectively limiting the stroke of the pressure core 2 by the limit pin 3 and the limit plate 4, a rigid limiting connection is performed between the limit pin 3, the limit plate 4, the upper mold 1 and the pressure core 2. Limiting grooves 9 are provided on both sides of the surface of the limit pin 3. There are several limiting grooves 9, and the limiting grooves 9 are distributed at equal distances. The inner side of the limiting strip 65 is located inside the limiting groove 9. The limiting groove 9 is used in conjunction with the limiting strip 65, which can effectively provide the limiting strip 65 with multiple spaces for limiting the limiting pin 3 in the process of the limiting strip 65 cooperating with the limit pin 3, so as to avoid the limit strip 65 being difficult to effectively limit the limit pin 3. At the same time, it is convenient for the user to adjust the distance between the fixed plate 62 and the limiting plate 4 according to the limit stroke requirements, thereby improving the limiting effect and flexibility of use of the limiting strip 65.

3 , in a preferred embodiment, openings 10 are provided on both sides of the inner wall of the connecting hole 63, the openings 10 are connected to the limiting cavity 64, the limiting strip 65 passes through the limiting cavity 64 through the openings 10, and the openings 10 are used in conjunction with the limiting strip 65, so that the limiting strip 65 can effectively cooperate with the limiting pin 3 through the limiting groove 9 to provide a space for the limiting strip 65 to pass through the limiting cavity 64 and enter the limiting groove 9, thereby avoiding the limiting strip 65 from having difficulty in passing through the limiting cavity 64 and entering the limiting groove 9 during operation, thereby preventing the limiting pin 3 from being blocked by the limiting pin 3. In the case of a rigid limiting connection, the convenience of the rigid clamping between the limiting strip 65 and the limiting groove 9 is improved. Springs 11 are arranged on both sides of the limiting cavity 64, and one end of the spring 11 is fixedly connected to the inner wall of the limiting cavity 64. The spring 11 is used in conjunction with the limiting strip 65 and the limiting groove 9. It can effectively apply a thrust to the limiting strip 65 when the limiting strip 65 cooperates with the limiting pin 3 through the limiting groove 9 during the working process, so as to avoid the limiting strip 65 from being separated from the limiting groove 9 during the working process, thereby improving the working stability of the limiting strip 65.

Referring to Figure 3, in a preferred embodiment, a contraction groove 12 is provided on the outer side of the limit strip 65, and the other end of the spring 11 is fixedly connected to the inner wall of the contraction groove 12. The contraction groove 12 is used in conjunction with the spring 11, and can effectively provide a contraction accommodating space for the spring 11 during the working process of the spring 11 and the limit strip 65, thereby avoiding the situation that the spring 11 is difficult to contract, resulting in the limit strip 65 being difficult to disengage from the limit groove 9 and entering the limit cavity 64, thereby improving the contraction and limiting effect of the spring 11, and a force application groove 13 is provided on the top of the disengagement handle 8, and the force application groove 13 is arranged in a rectangular shape. The force application groove 13 is used in conjunction with the disengagement handle 8 and the push rod 73, and can effectively provide a user with space to apply a moving force to the disengagement handle 8 during the use of the disengagement handle 8 and the push rod 73, thereby avoiding the situation that the handle 8 is difficult to apply force to move during the disengagement process, thereby improving the convenience of applying force and moving the disengagement handle 8.

Specifically, the working process or working principle of the punch core stroke limit mechanism for the stamping die is as follows: when in use, the hand-held limit pin 3 passes through the bottom of the punch core 2 to the top of the upper die 1 and enters the fixed groove 61, so that the limit plate 4 drives the buffer pad 5 to contact the bottom of the punch core 2, and then applies a moving force to the disengagement handle 8 through the force groove 13, so that the disengagement handle 8 pushes the limit bar 65 to move into the limit cavity 64 through the push rod 73. At this time, the spring 11 is affected by the moving force of the limit bar 65 and shrinks, and the shrinkage groove 12 is provided for the spring 11 to move. To provide contraction space, according to the stroke limit requirement of the pressing core 2, the limit pin 3 is moved into the connecting hole 63, and the limit slot 9 is driven to be on the same horizontal line with the opening 10, and then the disengagement handle 8 is released. At this time, the spring 11 applies a thrust to the limit strip 65, so that the spring 11 enters through the opening 10 into the limit slot 9, and performs a rigid limit clamping operation between the limit pin 3 and the fixed plate 62, so that the fixed plate 62 cooperates with the buffer pad 5 and the limit plate 4 through the limit pin 3 to limit the stroke of the pressing core 2 that moves up and down.

Claims (8)

1. The utility model provides a press core stroke stop gear for stamping die, includes upper mould (1), press core (2) are installed to the bottom of upper mould (1), spacer pin (3) are all installed in the four corners of press core (2), limiting plate (4) are installed to the bottom of spacer pin (3), blotter (5) are installed at the top of limiting plate (4), its characterized in that;

the stroke limiting mechanism comprises a stroke limiting mechanism;

A fixing groove (61); the fixing grooves (61) are formed in four corners of the top of the upper die (1), and fixing plates (62) are movably connected inside the fixing grooves (61);

a connection hole (63); the connecting hole (63) is formed in the top of the fixed plate (62), and the limiting pin (3) is movably connected in the connecting hole (63);

a spacing cavity (64); the limiting cavity (64) is formed in two sides of the inside of the fixed plate (62), a limiting strip (65) is movably connected in the limiting cavity (64), and the limiting strip (65) is in clamping fit with the limiting pin (3);

A disengagement mechanism; the disengaging mechanisms are arranged on two sides of the top of the fixed plate (62).

2. The pressing core stroke limiting mechanism for the stamping die according to claim 1, wherein the disengaging mechanism comprises disengaging openings (71), pushing grooves (72) and pushing rods (73), the disengaging openings (71) are formed in two sides of the top of the fixing plate (62), the pushing grooves (72) are formed in the bottoms of the disengaging openings (71), the pushing grooves (72) are communicated with the limiting cavity (64), the pushing rods (73) are movably connected in the pushing grooves (72), and the outer sides of the pushing rods (73) are fixedly connected with the inner sides of the limiting strips (65).

3. The pressing core stroke limiting mechanism for the stamping die according to claim 2, wherein a disengaging handle (8) is movably connected in the disengaging opening (71), the bottom of the disengaging handle (8) is fixedly connected with the top of the pushing rod (73), and the disengaging handle (8) is matched with the pushing rod (73).

4. The pressing core stroke limiting mechanism for the stamping die according to claim 1, wherein limiting grooves (9) are formed in two sides of the surface of the limiting pin (3), a plurality of limiting grooves (9) are formed, the plurality of limiting grooves (9) are distributed at equal intervals, the inner side of the limiting strip (65) is located in the limiting groove (9), and the limiting grooves (9) are matched with the limiting strip (65).

5. The pressing core stroke limiting mechanism for the stamping die according to claim 4, wherein openings (10) are formed in two sides of the inner wall of the connecting hole (63), the openings (10) are communicated with the limiting cavity (64), the limiting strips (65) penetrate through the limiting cavity (64) through the openings (10), and the openings (10) are matched with the limiting strips (65).

6. The pressing core stroke limiting mechanism for the stamping die according to claim 1, wherein springs (11) are arranged on two sides of the inside of the limiting cavity (64), one end of each spring (11) is fixedly connected with the inner wall of the limiting cavity (64), and the springs (11) are matched with limiting strips (65) and limiting grooves (9).

7. The pressing core stroke limiting mechanism for the stamping die according to claim 6, wherein a shrinkage groove (12) is formed in the outer side of the limiting strip (65), the other end of the spring (11) is fixedly connected with the inner wall of the shrinkage groove (12), and the shrinkage groove (12) is matched with the spring (11).

8. A pressing core stroke limiting mechanism for a stamping die according to claim 3, wherein the top of the disengaging handle (8) is provided with a force applying groove (13), the force applying groove (13) is rectangular, and the force applying groove (13) is matched with the disengaging handle (8) and the pushing rod (73).