Punching die for square tube of left backrest of automobile seat

Abstract

The utility model provides a punching die for a square tube of a left backrest of an automobile seat. The punching die comprises an upper die, a lower die, a guide pillar arranged on the upper die, and a guide hole which is formed in the lower die and is used for the insertion connection of the guide pillar, the lower die is provided with a cavity allowing a square tube to be inserted therein, at least one sliding block capable of sliding in the vertical direction of the cavity is arranged on the portion, located on the first side of the cavity, of the lower die, and at least one first punching needle capable of being inserted into the cavity and punching the first side of the square tube is arranged on the sliding block. The bottom of the upper die is provided with an inclined insert which pushes the sliding block to move towards the direction close to the cavity when the upper die moves downwards; and at least one second punching needle for punching the top wall of the square tube when the upper die moves downwards is also arranged at the bottom of the upper die.

Description

Technical Field

[0001] This utility model belongs to the field of molds, specifically relating to a punching mold for a square tube on the left back of an automobile seat. Background Technology

[0002] In the existing technology, when punching holes in the square tube of the left back of a car seat, two sets of one-cavity molds are required, and the punching is completed in two stages (upper and lower punching). The first mold punches four holes in the upper and lower sections, and the second mold punches two holes in the upper and lower sections. This requires two people and two punch presses, frequent mold changes and adjustments, which wastes time and is inefficient. Utility Model Content

[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a punching mold for square tubes on the left back of an automobile seat.

[0004] To achieve the above and other related objectives, this utility model provides a punching die for a square tube on the left backrest of an automobile seat. The punching die includes an upper die, a lower die, a guide post disposed on the upper die, and a guide hole disposed on the lower die for the guide post to be inserted and connected.

[0005] The lower die has a cavity into which a square tube can be inserted. The lower die has at least one slider that can slide vertically along the cavity on the first side of the cavity. The slider has at least one first punch that can be inserted into the cavity and punch the first side of the square tube. The bottom of the upper die has an oblique insert that pushes the slider towards the cavity when the upper die moves downward.

[0006] The bottom of the upper die is also provided with at least one second punch for punching holes in the top wall of the square tube when the upper die moves downward.

[0007] Optionally, the top surface of the slider on the side away from the first punch is provided with an inclined surface corresponding to the inclined insert.

[0008] Optionally, the lower mold is provided with a groove or slide rail for guiding the movement of the slider, and the direction of the groove or slide rail is perpendicular to the length direction of the cavity.

[0009] Optionally, the lower mold is provided with a spring that pushes the slider to move away from the cavity and reset.

[0010] Optionally, a positioning block is provided at the end of the cavity inside the lower mold to stop the first end of the square tube.

[0011] Optionally, a mandrel supporting the square tube is fixedly disposed inside the cavity, and the end of the mandrel is fixedly connected to the positioning block.

[0012] Optionally, the mandrel is provided with a first clearance hole and a second clearance hole at positions corresponding to the first punch and the second punch, respectively.

[0013] As described above, the punching die for a square tube on the left backrest of a car seat according to this utility model has the following beneficial effects: When using the punching die for a square tube on the left backrest of a car seat according to this utility model, the square tube can be inserted into the cavity. The upper die moves downward, driving the oblique insertion and downward movement. During the oblique insertion and downward movement, the pusher slide moves towards the cavity, and the slide drives the first punch to insert into the cavity and punch a hole on the first side of the square tube. At the same time, during the downward movement of the upper die, the upper die drives the second punch downward to punch a hole on the top wall of the square tube. The punching die of this application only requires one die to simultaneously realize two punching processes on different side walls of the square tube, reducing one person and saving one punch press, reducing the number of die changes and the number of scrapped products due to die change and debugging, saving processing costs, and greatly improving production efficiency. Attached Figure Description

[0014] Figure 1 The diagram shown is a top view of the square tube punching mold for the left backrest of an automobile seat provided by this utility model.

[0015] Figure 2 The diagram shows the front structure of the square tube punching mold for the left backrest of the car seat provided by this utility model. Detailed Implementation

[0016] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. For ease of explanation, when detailing the embodiments of this utility model, the cross-sectional views showing the device structure may be partially enlarged without adhering to the general scale, and the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. Furthermore, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0017] For ease of description, spatial relation terms such as “below,” “under,” “lower than,” “below,” “above,” and “upper” may be used herein to describe the relationship between one element or feature shown in the accompanying drawings and other elements or features. It will be understood that these spatial relation terms are intended to include directions other than those depicted in the drawings for devices in use or operation. Furthermore, when a layer is referred to as being “between” two layers, it may be the only layer between the two layers, or there may be one or more layers in between.

[0018] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show components related to this utility model and are not drawn according to the actual number, shape, and size of the components in the actual implementation. In the actual implementation, the form, quantity, and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex. To keep the illustrations as concise as possible, not all structures are indicated in the drawings.

[0019] like Figure 1 , 2 As shown, this embodiment provides a punching die for a square tube on the left back of an automobile seat. The punching die 10 includes an upper die 11, a lower die 12, a guide post 13 disposed on the upper die 11, and a guide hole 14 disposed on the lower die 12 for the guide post 13 to be inserted and connected.

[0020] The lower mold 12 is provided with a cavity 15 into which a square tube 16 can be inserted. The lower mold 12 is provided with at least one slider 17 located on the first side of the cavity 15, which can slide along the vertical direction of the cavity 15. The slider 17 is provided with at least one first punch 18 that can be inserted into the cavity 15 and punch the first side of the square tube 16. The bottom of the upper mold 11 is provided with an oblique insert 19 that pushes the slider 17 to move closer to the cavity 15 when the upper mold 11 moves downward.

[0021] The bottom of the upper mold 11 is also provided with at least one second punch 20 for punching the top wall of the square tube 16 when the upper mold 11 moves downward.

[0022] When using the punching die for the square tube of the left backrest of a car seat according to this utility model, the square tube 16 can be inserted into the cavity 15. The upper die 11 moves downward, driving the inclined insert 19 to move downward as well. During the downward movement of the inclined insert 19, it pushes the slider 17 to move closer to the cavity 15. The slider 17 drives the first punch 18 to insert into the cavity 15 and punch a hole on the first side of the square tube 16. At the same time, during the downward movement of the upper die 11, the upper die 11 drives the second punch 20 to punch a hole in the top wall of the square tube 16. The punching die 10 of this application only requires one die 10 to simultaneously realize two punching processes on different side walls of the square tube 16, reducing one person and saving one punch press, reducing the number of die changes and the number of scrapped products due to die change and debugging, saving processing costs, and greatly improving production efficiency.

[0023] In this embodiment, the top surface of the slider 17 away from the first punch 18 is provided with an inclined surface 21 corresponding to the inclined insert 19. During the downward movement of the upper mold 11, the inclined insert 19 abuts against the inclined surface 21 and pushes the slider 17 in the direction of the cavity 15 to form a punch in the first direction.

[0024] Specifically, the lower mold 12 is provided with a groove or slide rail for the slider 17 to move and guide, and the direction of the groove or slide rail is perpendicular to the length direction of the cavity 15.

[0025] Furthermore, to facilitate the reset of the slider 17 after punching is completed, the lower die 12 is provided with a spring 22 that pushes the slider 17 to move away from the cavity 15 and reset.

[0026] To achieve better positioning, a positioning block 23 is provided inside the lower mold 12 at the end of the cavity 15 to stop the first end of the square tube 16.

[0027] Furthermore, a mandrel 24 supporting the square tube 16 is fixedly disposed inside the cavity 15, and the end of the mandrel 24 is fixedly connected to the positioning block 23. A first clearance hole and a second clearance hole are respectively provided on the mandrel 24 at positions corresponding to the first punch 18 and the second punch 20.

[0028] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A punching die for a square tube on the left backrest of a car seat, characterized in that, The punching die includes an upper die, a lower die, a guide post disposed on the upper die, and a guide hole disposed on the lower die for the guide post to be inserted and connected. The lower mold is provided with a cavity into which a square tube can be inserted. The lower mold is provided with at least one slider on the first side of the cavity, which can slide along the vertical direction of the cavity. The slider is provided with at least one first punch that can be inserted into the cavity and punch the first side of the square tube. The bottom of the upper mold is provided with an oblique insert that pushes the slider to move closer to the cavity when the upper mold moves downward. The bottom of the upper mold is also provided with at least one second punch for punching holes in the top wall of the square tube when the upper mold moves downward.

2. The punching die for the square tube of the left backrest of an automobile seat according to claim 1, characterized in that, The top surface of the slider on the side away from the first punch has an inclined surface corresponding to the inclined insertion.

3. The punching die for the square tube of the left backrest of an automobile seat according to claim 2, characterized in that, The lower mold is provided with a groove or rail for guiding the movement of the slider, and the direction of the groove or rail is perpendicular to the length direction of the cavity.

4. The punching die for the square tube of the left backrest of an automobile seat according to claim 3, characterized in that, The lower mold is equipped with a spring that pushes the slider to move away from the cavity and reset.

5. The punching die for the square tube of the left backrest of an automobile seat according to claim 1, characterized in that, The lower mold is provided with a positioning block at the end of the cavity to stop the first end of the square tube.

6. The punching die for the square tube of the left backrest of an automobile seat according to claim 5, characterized in that, A core rod supporting the square tube is fixedly installed inside the cavity, and the end of the core rod is fixedly connected to the positioning block.

7. The punching die for the square tube of the left backrest of an automobile seat according to claim 6, characterized in that, The mandrel is provided with a first clearance hole and a second clearance hole at positions corresponding to the first punch and the second punch, respectively.

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