CN218361595U - Pressure flitch guide type structure of punching a hole - Google Patents

Abstract

The utility model discloses a punching structure guided by a binder plate, which comprises: a lower mold base body; a die installed on the lower mold base body; The mold base body is adapted to press the blanking parts; the installation hole is arranged in the holder body, and the installation hole is arranged obliquely; the punch is installed in the installation hole, and the first end of the punch can extend out of the holder body and Adapt to the die; the drive block is slidably installed in the mounting hole, and the drive block can drive the punch to move; the upper end of the drive block can extend out of the binder plate body; the upper die base body can move up and down; the punching rod is installed on the upper On the mold base body, the driving rod can drive the drive block to slide, with a compact structure, which makes up for the gap in the integrated development of large-angle punching and forward stamping, and improves the punching accuracy of the product.

Description

A pressure plate guided punching structure

technical field

The utility model belongs to the technical field of automobiles, in particular to a pressing plate guiding type punching structure.

Background technique

At present, the mold requires simple structure, few processes, convenient maintenance, and the lowest cost, and the simplification of the process is the embodiment of manufacturing capacity. As a non-standard large-angle punching industry has been blank, because the angle is too large, standard parts manufacturers have not developed such a standard oblique wedge. If this kind of non-standard large-angle punching is required, additional processes need to be added to cater for the specific punching direction of the punching. Or enlarge the tolerance and sacrifice precision to meet production.

In the process of realizing the utility model, the inventor of the utility model has found that the prior art has at least the following problems:

At present, the development of large-angle standard wedges is too large in terms of length, width, and height, and cannot be arranged inside general molds. The punching distance of general products is relatively compact and the process is concentrated. As a result, the standard wedge has no living space in this blanking environment. If you want to solve this punching problem, you must add a specific process or reduce the product accuracy, ignoring the angle between the normal direction of the punching hole and the punching angle of the current process.

1. Without the development of this standard wedge, the customized wedge is too large to satisfy compact punching.

2. Add a specific process to cater to the punching angle, the process is cumbersome and the cost is high.

3. Sacrifice product precision to cater to manufacturing.

Utility model content

The technical problem to be solved by the utility model is to provide a compact structure, which makes up for the gap in the integrated development of large-angle punching and forward punching, and improves the punching precision of the product.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: a pressing plate-guided punching structure, which has:

Lower mold base body;

Die, installed on the body of the lower die holder;

The binder plate body is installed on the upper die, and the binder plate body can be adapted to the lower die holder body to press the blanking parts;

The installation hole is arranged in the main body of the pressure plate, and the installation hole is arranged obliquely;

The punch is installed in the mounting hole, and the first end of the punch can protrude from the binder body and adapt to the die;

The driving block is slidably installed in the installation hole, and the driving block can drive the punch to move; the upper end of the driving block can protrude from the binder plate body;

The body of the upper die base can move up and down;

The punching rod is installed on the body of the upper die holder, and the punching rod can drive the sliding of the driving block.

A guide mechanism is also provided in the binder body, and the guide mechanism includes a guide shaft, which is adapted to the installation hole and can slide in the installation hole, and the punch is installed on the guide shaft.

The clamping plate body is further provided with a limit block for limiting the stroke of the driving block.

The presser plate body is also provided with a return mechanism, the return mechanism is a spring, the spring is set on the punch, the first end of the spring is in contact with the guide shaft, and the second end is in contact with the presser plate contact with the inner wall of the body.

The upper die base body is installed on the press slide block.

The lower mold base body is installed on the press table.

The punching rod is detachably mounted on the upper die base body through bolts.

A method of using the above-mentioned binder plate-guided punching structure, comprising the following steps:

1) The press starts to close downwards, driving the entire upper mold part to move downwards;

2) The pressing plate first contacts the lower die with the material parts placed, and when the pressing material touches the sheet, the spring of the upper die starts to compress, and the pressing plate body exerts a pressing force on the punched parts;

3) When the driving block contacts the punching rod, the driving block converts the vertical force of the press into the punching direction force and transmits it to the punch and the guide shaft;

4) The guide shaft and the punch are fixed, and the guide shaft slides and cooperates with the binder body to provide guidance for the punch. At the same time, the guide shaft compresses the spring, and the press continues to move downward;

5) The punch extrudes the body of the pressing plate to start punching the sheet, and cooperates with the die to punch out the shape;

6) Until the press reaches the bottom dead point, the whole punching action ends.

After the press moves down to the bottom dead point, the press table starts to move upwards. The spring of the upper die provides support for the unloading of the press plate body, and the spring provides the normal return force for the punch. The press plate body presses the punch. When cutting the sheet, the punch starts to return to the inside of the pressing plate body, and exits to punch into the punched parts. The guide shaft provides the return guide for the punch. When the back is back, the driving block contacts the limit block, and the limit block moves against it. The limit prevents the drive block, guide shaft, and punch from exiting the clamping plate body; the press continues to return upward; the limit block stops the upward movement, the punching rod and the limit block are separated, and then the spring of the upper die is compressed to form a return stroke Finished, and then the movement of the upper mold is completed until the press reaches the upper dead center to complete a cycle.

One of the above technical solutions has the following advantages or beneficial effects,

1. The process is simplified, the structure is simple and compact, the maintenance is convenient, the process is low, the cost is low, and the overall process level is improved;

2. Make up for the gap in the integrated development of large-angle punching and forward stamping;

3. Improve the punching precision of the product.

Description of drawings

Fig. 1 is a structural schematic diagram of a binder plate-guided punching structure provided in an embodiment of the present invention;

The marks in the above figures are: 1. Punching rod, 2. Limiting block, 3. Driving block, 4. Guide shaft, 5. Punch, 6. Spring, 7. Die, 8. Press slider, 9. Upper die holder body, 10. Binder body, 11. Punched parts, 12. Lower die holder body, 13. Lower die holder body, 14. Press table.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Referring to Figure 1, a binder-guided punching structure has:

The lower die holder body; the concave die is installed on the lower die holder body; the "die" is fixed in the lower die holder body, and its function is to cooperate with the punch to punch out the desired shape.

The binder body is installed on the upper die, and the binder body can be adapted to the lower die base body to press the punched parts; the installation hole is arranged in the binder body, and the installation hole is set obliquely; the oblique setting forms the punch Tilt movement, suitable for special large-angle punching.

Punch, installed in the installation hole, the first end of the punch can extend out of the binder body and fit with the die; the function of the "standard punch" is to match the "die" to punch out the desired shape.

The driving block is slidably installed in the mounting hole. The driving block can drive the punch to move; the upper end of the driving block can protrude from the clamping plate body; the function of the "driving block" is to convert the vertical force transmitted by the "hitting rod" into the desired punch. Cut direction force.

The body of the upper die base can move up and down; it plays a driving role.

The driving rod is installed on the body of the upper die base. The driving rod can drive the driving block to slide. The "driving rod" is locked on the upper die base body through bolts, and its function is to transmit the vertical force of the press.

The main principle: the "rod" transmits the vertical force of the press to the "drive block", and the "drive block" converts the vertical direction into the vertical force of the product and transmits the force to the "standard punch", and then the "standard punch" Punch" cooperates with "die" to carry out blanking.

A guide mechanism is also provided in the binder body, and the guide mechanism includes a guide shaft, which is adapted to the installation hole and can slide in the installation hole, and the punch is installed on the guide shaft. The role of the "guide shaft" is to fix the "standard punch" and provide movement guidance for the punch by sliding relative to the clamping plate, and at the same time transmit the return stroke and preload of the "standard spring" below.

The clamping plate body is still provided with a limiting block for limiting the stroke of the driving block. The "limit block" mainly plays an auxiliary role, providing return limit for "driver", "guide shaft" and "standard punch", and providing pre-compression limit for the mechanism to prevent shaking. in the sheet body.

The binder body is also provided with a return mechanism, the return mechanism is a spring, the spring is sleeved on the punch, the first end of the spring is in contact with the guide shaft, and the second end is in contact with the inner wall of the binder body. The "standard spring" is pressed against the pressure plate body through the "guide shaft" to form a reverse force, and the function is to provide the return force for the whole mechanism.

The upper die base body is installed on the slider of the press. The lower mold base body is installed on the press table. The punching rod is detachably mounted on the upper die base body through bolts.

The new structure designed to make up for the failure of the traditional structure can be seen from the assembly schematic diagram, which is very compact. It can be hidden in the binder plate and installed without increasing the height of the mold. Secondly, the occupied area is the size of the guide shaft, which is one size larger than the standard punch. According to the different processing angles of the installation holes, it is suitable for all special large-angle punching holes, and there is no need to increase the process or reduce the product precision to meet the punching.

A method of using the above-mentioned binder plate-guided punching structure, comprising the following steps:

1) The press starts to close downwards, driving the entire upper mold part to move downwards;

2) The pressing plate first contacts the lower die with the material parts placed, and when the pressing material touches the sheet, the spring of the upper die starts to compress, and the pressing plate body exerts a pressing force on the punched parts;

3) When the driving block contacts the punching rod, the driving block converts the vertical force of the press into the punching direction force and transmits it to the punch and the guide shaft;

4) The guide shaft and the punch are fixed, and the guide shaft slides and cooperates with the binder body to provide guidance for the punch. At the same time, the guide shaft compresses the spring, and the press continues to move downward;

5) The punch extrudes the body of the pressing plate to start punching the sheet, and cooperates with the die to punch out the shape;

6) Until the press reaches the bottom dead point, the whole punching action ends.

After the press moves down to the bottom dead point, the press table starts to move upwards. The spring of the upper die provides support for the unloading of the press plate body, and the spring provides the normal return force for the punch. The press plate body presses the punch. When cutting the sheet, the punch starts to return to the inside of the pressing plate body, and exits to punch into the punched parts. The guide shaft provides the return guide for the punch. When the back is back, the driving block contacts the limit block, and the limit block moves against it. The limit prevents the drive block, guide shaft, and punch from exiting the clamping plate body; the press continues to return upward; the limit block stops the upward movement, the punching rod and the limit block are separated, and then the spring of the upper die is compressed to form a return stroke Finished, and then the movement of the upper mold is completed until the press reaches the upper dead center to complete a cycle.

After adopting the above-mentioned structure, the punching scheme and punching structure design are very compact and scientifically make up for the gap in the industry. It is only necessary to adjust the angle of the corresponding installation hole to apply to the punching environment at different angles.

1. The process is simplified, the structure is simple and compact, the maintenance is convenient, the process is low, the cost is low, and the overall process level is improved;

2. Make up for the gap in the integrated development of large-angle punching and forward stamping;

3. Improve the punching precision of the product.

In the description of the present utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", " The orientation or positional relationship indicated by "top", "inner", "front", "central", "both ends" etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description , rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the utility model.

In this utility model, unless otherwise clearly specified and limited, terms such as "installation", "setting", "connection", "fixation" and "rotation" should be understood in a broad sense, for example, it may be a fixed connection, It can also be detachable connection, or integrated; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction of two components Unless otherwise clearly defined, those skilled in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (7)

1. A pressure pad guide type punching structure is characterized by having:

a lower die holder body;

the female die is arranged on the lower die holder body;

the pressing plate body is mounted on the upper die and can be matched with the lower die holder body to press a punched part;

the mounting hole is arranged in the material pressing plate body and is obliquely arranged;

the punch is arranged in the mounting hole, and the first end of the punch can extend out of the material pressing plate body and is matched with the female die;

the driving block is slidably mounted in the mounting hole and can drive the punch to move; the upper end of the driving block can extend out of the material pressing plate body;

the upper die holder body can move up and down;

and the striking rod is arranged on the upper die base body and can drive the driving block to slide.

2. A nip plate guide type punching structure according to claim 1, wherein a guide mechanism is further provided in the nip plate body, the guide mechanism including a guide shaft fitted with and slidable in the mounting hole, the punch being mounted on the guide shaft.

3. A nip plate guide-type punching structure as set forth in claim 2, wherein a stopper for restricting the stroke of the driving block is further provided on the nip plate body.

4. A blade-guided punch structure as claimed in claim 3, wherein a return mechanism is further provided in the blade body, the return mechanism being a spring that is fitted over the punch, the spring having a first end in contact with the guide shaft and a second end in contact with an inner wall of the blade body.

5. The swage plate guide-type punching structure of claim 4, wherein the upper die base body is mounted on a press slide.

6. The swage guide type punching structure of claim 5, wherein the lower die holder body is mounted on a press table.

7. The swage plate guide-type punching structure of claim 6, wherein the striking rod is detachably mounted on the upper die base body by a bolt.

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