Special-shaped punching and shaping die for automobile seat basin framework and application method of special-shaped punching and shaping die

Abstract

The invention relates to an automobile seat basin framework special-shaped punching and shaping die and an application method, the automobile seat basin framework special-shaped punching and shaping die comprises an upper die and a lower die, and a punch module, a first reset spring for resetting the punch module and a profiling and shaping groove are arranged on the upper die in a sliding mode; the lower die is provided with a shaping profiling block for placing the automobile seat basin framework, a positioning assembly and a leaning block matched with the punch die set, the shaping profiling block is provided with a punching female die matched with the punch die set, the punch die set comprises a sliding block, the sliding block is provided with a punch and an elastic material pressing block, the sliding block is provided with an inclined surface matched with the leaning block, and the punching female die is matched with the inclined surface. The punching female die comprises a mounting shell, a punching inclined plane is arranged on the mounting shell, and a concave hole is formed in the punching inclined plane; according to the automobile seat basin framework shaping device, punching and double-face shaping of punched holes are also considered while shaping of the automobile seat basin framework is completed, the structure is reasonable and compact, and the machining efficiency and the product consistency can be effectively improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile hardware machining, in particular to an automobile seat pan framework special-shaped punching and shaping die and an application method. BACKGROUND

[0002] The automobile seat pan framework is a relatively typical automobile special-shaped hardware, the part is usually in a C-shaped structure as a whole, and a slant punching operation needs to be performed on the C-shaped concave surface during machining; in the traditional machining mode, the punching is performed by relying on a slant sliding punching die, although the punching operation can be performed, the shaping of the edges of the punched holes cannot be realized at one time, and manual secondary shaping machining is needed, which is time-consuming and laborious, and the machining consistency is poor; therefore, an automobile seat pan framework special-shaped punching and shaping die capable of performing double-sided punching and shaping and an application method thereof are needed. SUMMARY

[0003] The application aims to solve the technical problems of the prior art, and provides an automobile seat pan framework special-shaped punching and shaping die and an application method thereof.

[0004] The technical scheme adopted by the application to solve the technical problems is as follows:

[0005] The application discloses a special-shaped punching and shaping die for an automobile seat pan framework, which comprises an upper die and a lower die, wherein the upper die is provided with a punch die assembly, a first reset spring for resetting the punch die assembly and a profiling and shaping groove in a sliding mode; the lower die is provided with a profiling and shaping block for placing the automobile seat pan framework, a positioning assembly and an inclined block matched with the punch die assembly; the profiling and shaping block is provided with a punching concave die matched with the punch die assembly; the punch die assembly comprises a sliding block, the sliding block is provided with a punch and an elastic material pressing block, and the sliding block is provided with an inclined surface matched with the inclined block; the punching concave die comprises a mounting shell, the mounting shell is provided with a punching inclined surface, the punching inclined surface is provided with a concave hole, the concave hole is provided with an inner shaping column and a second reset spring for providing elastic force for the inner shaping column, and the tolerance between the outer diameter of the punch and the inner diameter of the concave hole is larger than the tolerance between the outer diameter of the inner shaping column and the inner diameter of the concave hole; in the initial state, the front end surface of the inner shaping column is flush with the surface of the mounting shell; the edge of the front end surface of the inner shaping column is provided with a lower shaping surface in the form of a conical surface, and the shape of the concave hole is matched with that of the inner shaping column; the inner shaping column is provided with an electromagnet for adsorbing the punch and a magnetic shielding sleeve sleeved on the periphery of the electromagnet; the punch is provided with an upper shaping step in the form of a ring; the mounting shell is provided with a detection sensor for detecting the position of the inner shaping column, and the electromagnet is maintained in the electrified state during the punching and shaping process; when the detection sensor detects that the inner shaping column exceeds the set interval of the initial position, the electromagnet is controlled to be de-energized for a set time.

[0006] The automobile seat pan framework special-shaped punching and shaping die, wherein the detection sensor is an infrared opposite radiation sensor, and the detection sensor is arranged on the inner wall of the concave hole; the inner shaping column is provided with a first through hole matched with the infrared opposite radiation sensor; when the inner shaping column exceeds the set interval of the initial position, the infrared light of the infrared opposite radiation sensor passes through the first through hole.

[0007] The automobile seat pan framework special-shaped punching and shaping die, wherein the lower end of the inner shaping column is provided with a sliding block, and the inner wall of the concave hole is provided with a sliding groove matched with the sliding block.

[0008] The automobile seat pan framework special-shaped punching and shaping die, wherein the second reset spring is connected to the lower end of the inner shaping column; and the wire of the electromagnet passes through the second reset spring.

[0009] The automobile seat pan framework special-shaped punching and shaping die, wherein the inner shaping column is provided with a second through hole matched with the infrared opposite radiation sensor; when the inner shaping column descends to the lowest point of the stroke, the infrared light of the infrared opposite radiation sensor passes through the second through hole.

[0010] The automobile seat basin framework special-shaped punching and shaping die, wherein the shaping profile block is in a C shape, the inclined block is located in the C-shaped region of the shaping profile block and has a spacing with the shaping profile block; the lower die is provided with a blanking groove located directly below the spacing.

[0011] The automobile seat basin framework special-shaped punching and shaping die, wherein the positioning assembly comprises a plurality of positioning pins and a plurality of positioning rods distributed around the shaping profile block.

[0012] An automobile seat basin framework special-shaped punching and shaping die application method, the automobile seat basin framework special-shaped punching and shaping die is applied as above, wherein the method comprises the following steps:

[0013] The automobile seat basin framework is placed on the shaping profile block under the positioning action of the positioning assembly and is fixed by the electromagnet;

[0014] The upper die goes down, the slide block drives the punch to move and contact the automobile seat basin framework under the action of the inclined surface and the inclined block, and the elastic material pressing block presses and holds the automobile seat basin framework;

[0015] The upper die continues to go down, the punch cooperates with the concave hole to punch the automobile seat basin framework, after the punching is completed, the upper die continues to go down, the upper shaping step shapes the upper edge of the punched hole, and the shaping profile block and the shaping shaping groove shape the automobile seat basin framework;

[0016] The upper die goes up, the punch is gradually reset under the action of the first reset spring, and the punch drives the inner shaping column to go up along the concave hole under the adsorption action of the electromagnet, the lower shaping surface on the inner shaping column shapes the lower edge of the punched hole, and the punching waste is clamped out of the concave hole by the punch and the inner shaping column;

[0017] The upper die continues to go up, when the detection sensor detects that the inner shaping column exceeds the initial position setting spacing, the electromagnet is controlled to lose power for a setting time, the punch goes up to separate from the punching waste, the punching waste returns to the punched hole, the automobile seat basin framework is taken away, the punching waste slides down along the punching inclined surface, and the electromagnet restores to the power-on state.

[0018] The beneficial effects of the present application are that the automobile seat pan framework is placed to the shaping profiling block under the positioning effect of the positioning assembly, and is adsorbed and fixed by the electromagnet; the upper die goes down, the slide block drives the punch to move and contact the automobile seat pan framework under the effect of the inclined surface and the inclined block, and the elastic material pressing block holds the automobile seat pan framework; the upper die continues to go down, the punch cooperates with the concave hole to punch the automobile seat pan framework, after the punching is completed, the upper die continues to go down, the upper shaping step shapes the upper edge of the punched hole, and the shaping profiling block and the profiling shaping groove shape the automobile seat pan framework; the upper die goes up, the punch is gradually reset under the action of the first reset spring, and the inner shaping column is driven to go up along the concave hole under the adsorption effect of the electromagnet, the lower shaping surface on the inner shaping column shapes the lower edge of the punched hole, and the punching waste is clamped and taken out of the concave hole by the punch and the inner shaping column; the upper die continues to go up, when the detection sensor detects that the inner shaping column exceeds the initial position setting distance, the electromagnet is controlled to lose power for a set time, the punch goes up to separate from the punching waste, the punching waste returns to the punched hole, the automobile seat pan framework is taken away, the punching waste slides down along the punching inclined surface, and the electromagnet restores to the power-on state; by using the mode and method of the present application, the shaping of the automobile seat pan framework can be completed, and punching and double-sided shaping of the punched hole are also considered, the structure is reasonable and compact, and the processing efficiency and product consistency can be effectively improved; the setting of the electromagnet is not only used for the inner shaping of the punched hole, but also used to replace the traditional floating material pressing block of the upper die to adsorb and fix the automobile seat pan framework on the lower die. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the present application will be further described below with reference to the drawings and embodiments. The drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any inventive labor:

[0020] Figure 1 is a schematic diagram of the upper die structure of the automobile seat pan framework special-shaped punching and shaping die of the preferred embodiment of the present application;

[0021] Figure 2 is a schematic diagram of the lower die structure of the automobile seat pan framework special-shaped punching and shaping die of the preferred embodiment of the present application;

[0022] Figure 3 is a punch and concave die cooperation sectional view of the schematic diagram of the upper die structure of the automobile seat pan framework special-shaped punching and shaping die of the preferred embodiment of the present application;

[0023] Figure 4 is Figure 3 is an enlarged schematic diagram of A in

[0024] Figure 5The application method flow chart of the automobile seat pan framework special-shaped punching and shaping die is a preferred embodiment of the present application. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the technical scheme in the embodiments of the present application to make a clear and complete description. Obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0026] The automobile seat pan framework special-shaped punching and shaping die of the preferred embodiment of the present application, as shown in Figure 1 , simultaneously referring to Figures 2-4 , comprises an upper die 1 and a lower die 2, the upper die 1 is slidably provided with a punch die set 10, a first reset spring for resetting the punch die set 10 and a profiling and shaping groove 11; the lower die 2 is provided with a profiling and shaping block 20 for placing the automobile seat pan framework, a positioning assembly 21 and an inclined block 22 for cooperating with the punch die set, the profiling and shaping block 20 is provided with a punching female die 23 for cooperating with the punch die set 10, the punch die set 10 comprises a sliding block 100, the sliding block 100 is provided with a punch 101 and an elastic material pressing block 102 (as shown in Figure 1 , which is formed by a plurality of small elastic blocks, the elastic material pressing block 102 is provided for holding the automobile seat pan framework at the moment before the electromagnet loses power, so as to cooperate with the punch to pull the inner shaping column 3 to move and impact the punching edge for shaping), the sliding block 100 is provided with an inclined surface for cooperating with the inclined block, the punching female die 23 comprises a mounting shell 230, the mounting shell 230 is provided with a punching inclined surface 231, the punching inclined surface 231 is provided with a concave hole 232, the concave hole 232 is provided with an inner shaping column 3 and a second reset spring 4 for providing elastic force to the inner shaping column 3, the tolerance between the outer diameter of the punch 101 and the inner diameter of the concave hole 232 is greater than the tolerance between the outer diameter of the inner shaping column 3 and the inner diameter of the concave hole 232 (the present application is designed based on the difference of the tolerances, since the cooperation between the punch 101 and the concave hole 232 is a separated cooperation, the tolerances of the two need to be designed slightly larger to ensure the smooth closing of the die, while the inner shaping column 3 is slidably arranged in the concave hole 232, the tolerances between the two can be designed smaller, based on the difference of the tolerances, the inner shaping column 3 is applied to realize the inner shaping; the specific tolerance value and the difference of the tolerance value can be set according to actual needs);

[0027] In the initial state, the front end face of the inner shaping column 3 is flush with the surface of the mounting shell 230; the edge of the front end face of the inner shaping column 3 is provided with a conical lower shaping surface 30, and the concave hole 232 matches the shape of the inner shaping column 3; the inner shaping column 3 is provided with an electromagnet 5 for adsorbing a punch 101 and a magnetic shielding sleeve 50 sleeved on the periphery of the electromagnet 5 (for reducing the adsorption effect of the electromagnet 5 on the inner wall of the concave hole 232); the punch 101 is provided with an annular upper shaping step 1010; the mounting shell 230 is provided with a detection sensor 6 for detecting the position of the inner shaping column 3; the electromagnet 5 is kept in the electrified state during the punching and shaping process; when the detection sensor 6 detects that the inner shaping column 3 exceeds the set distance from the initial position, the electromagnet 5 is controlled to be de-energized for a set time (this time is reserved for taking out the automobile seat pan frame and for the punching waste material discharging operation).

[0028] The automobile seat pan frame is placed on the shaping profiling block 20 under the positioning action of the positioning assembly 21 and is adsorbed and fixed by the electromagnet 5; the upper die 1 descends, the slide block 100 drives the punch 101 to move and contact the automobile seat pan frame under the action of the inclined surface and the inclined block 22, and the elastic pressure block 102 holds the automobile seat pan frame; the upper die 1 continues to descend, the punch 101 cooperates with the concave hole 232 to punch the automobile seat pan frame, and after the punching is completed, the upper die 1 continues to descend, the upper shaping step 1010 shapes the upper edge of the punched hole, and the shaping profiling block 20 and the profiling shaping groove 11 shape the automobile seat pan frame; the upper die 1 ascends, the punch 101 is gradually reset under the action of the first reset spring, and at the same time, the punch 101 drives the inner shaping column 3 to ascend along the concave hole 232 under the adsorption action of the electromagnet 5, the lower shaping surface 30 on the inner shaping column 3 shapes the lower edge of the punched hole, and the punching waste material is clamped out of the concave hole 232 by the punch 101 and the inner shaping column 3; the upper die 1 continues to ascend, the electromagnet 5 is de-energized for a set time when the detection sensor 6 detects that the inner shaping column 3 exceeds the set distance from the initial position, the punch 101 ascends to separate from the punching waste material, the punching waste material returns to the punched hole (on the automobile seat pan frame), the automobile seat pan frame is taken out, the punching waste material slides down along the punching inclined surface 231, the electromagnet 5 returns to the electrified state, and the next automobile seat pan frame is processed;

[0029] By using the method of the application, the shaping of the automobile seat pan frame can be completed, and the punching and double-sided shaping of the punched hole are also considered, the structure is reasonable and compact, the processing efficiency and product consistency can be effectively improved, the electromagnet is arranged to not only shape the inner side of the punched hole but also replace the floating pressure block of the traditional upper die to adsorb and fix the automobile seat pan frame on the lower die, the reliability of the punching can be further maintained during the punching stage by controlling the adsorption force of the electromagnet, the punching waste material is not easy to jump, and the way of discharging the waste material is changed, the punching waste material is upwardly withdrawn, and the risk of blocking the waste material can be avoided.

[0030] Preferably, the detection sensor 6 is an infrared reflection sensor, and the detection sensor 6 is arranged on the inner wall of the concave hole 232; the inner shaping column 3 is provided with a first through hole 31 matched with the infrared reflection sensor; when the inner shaping column 3 is set apart from the initial position by a distance, the infrared light of the infrared reflection sensor passes through the first through hole 31; the inner shaping column 3 is provided with a second through hole 32 matched with the infrared reflection sensor; when the inner shaping column 3 reaches the lowest point of the stroke, the infrared light of the infrared reflection sensor passes through the second through hole 32; the structure is simple, the sensing reliability is good, and the device is not easily disturbed by the outside world.

[0031] Preferably, the lower end of the inner shaping column 3 is provided with a sliding block 33, and the inner wall of the concave hole 232 is provided with a sliding groove 2320 matched with the sliding block; the structural stability is ensured.

[0032] Preferably, the second reset spring 4 is connected to the lower end of the inner shaping column 3; the wire 51 of the electromagnet 5 passes through the second reset spring 4; the second reset spring 4 is used to ensure that the inner shaping column 3 can be reset to the initial position, and the wire is routed from the inside of the second reset spring 4, which is more convenient.

[0033] Preferably, the shaping profiling block 20 is C-shaped, and the inclined block 22 is located in the C-shaped region of the shaping profiling block 20 and has a spacing with the shaping profiling block; the lower die 2 is provided with a blanking groove 24 located directly below the spacing, so that the waste material can freely fall along the punching inclined surface 231.

[0034] Preferably, the positioning assembly 21 includes a plurality of positioning pins 210 and a plurality of positioning rods 211 distributed around the shaping profiling block, and the structure is simple and the positioning reliability is good.

[0035] An application method of the automobile seat pan framework special-shaped punching and shaping die, the automobile seat pan framework special-shaped punching and shaping die is applied as above, as shown in the figure, the method comprises the steps of: Figure 5

[0036] S01: placing the automobile seat pan framework under the positioning action of the positioning assembly to the shaping profiling block, and fixing by the electromagnet;

[0037] S02: the upper die moves downward, the sliding block drives the punch to move and contact the automobile seat pan framework under the action of the inclined surface and the inclined block, and the elastic pressure block holds the automobile seat pan framework;

[0038] S03: the upper die continues to move downward, the punch cooperates with the concave hole to punch the automobile seat pan framework, after the punching is completed, the upper die continues to move downward, the upper shaping step shapes the upper edge of the punched hole, and the shaping profiling block and the profiling shaping groove shape the automobile seat pan framework;

[0039] ​S04: the upper die continues to move upward, the punch gradually resets under the action of the first reset spring, and the inner shaping column is driven to move upward along the concave hole under the adsorption of the electromagnet, the lower shaping surface on the inner shaping column shapes the lower edge of the punched hole, and the punching waste is taken out of the concave hole by the punch and the inner shaping column;

[0040] S05: the upper die continues to move upward, when the detection sensor detects that the inner shaping column exceeds the initial position setting interval, the electromagnet is de-energized for a set time, the punch moves upward to separate from the punching waste, the punching waste returns to the punched hole, the automobile seat basin framework is taken away, the punching waste slides down along the punching slope, and the electromagnet returns to the energized state;

[0041] The application can complete the shaping of the automobile seat basin framework, and also consider punching and double-sided shaping of the punching, the structure is reasonable and compact, and the machining efficiency and product consistency can be effectively improved. The electromagnet is used not only for shaping the inner side of the punch, but also for replacing the traditional floating material block of the upper die to adsorb and fix the automobile seat basin framework on the lower die.

[0042] It should be understood that those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the appended claims of the present application.

Claims

1. A special-shaped punching and shaping die for a car seat frame, comprising an upper die and a lower die, characterized in that: The upper die is slidingly provided with a punch die set, a first return spring for resetting the punch die set, and a profiling shaping groove; the lower die is provided with a profiling block for placing the automobile seat basin frame, a positioning component and a leaning block cooperating with the punch die set, the profiling block is provided with a punching die cooperating with the punch die set, the punch die includes a slider, a punch and an elastic pressing block are provided on the slider, and an inclined surface cooperating with the leaning block is provided on the slider, the punching die includes a mounting shell, a punching inclined surface is provided on the mounting shell, a concave hole is provided on the punching inclined surface, an inner shaping column and a second return spring for providing elastic force to the inner shaping column are provided in the concave hole, and the tolerance between the outer diameter of the punch and the inner diameter of the concave hole is large. The tolerance between the outer diameter of the inner shaping column and the inner diameter of the concave hole; in the initial state, the front end face of the inner shaping column is flush with the surface of the mounting shell; the edge of the front end face of the inner shaping column is provided with a conical lower shaping surface, and the concave hole matches the shape of the inner shaping column; an electromagnet for adsorbing the punch and a magnetic shielding sleeve sleeved around the electromagnet are provided in the inner shaping column; an annular upper shaping step is provided on the punch; a detection sensor for detecting the position of the inner shaping column is provided in the mounting shell, and the electromagnet maintains an energized state during the punching and shaping process. When the detection sensor detects that the inner shaping column exceeds the set distance of the initial position, the electromagnet is controlled to lose power for a set time.

2. The automobile seat basin frame special-shaped punching and shaping die according to claim 1, characterized in that: The detection sensor is an infrared counter-radiation sensor, which is arranged on the inner wall of the concave hole; a first through hole is provided on the inner shaping column to cooperate with the infrared counter-radiation sensor; when the inner shaping column exceeds the set distance of the initial position, the infrared light of the infrared counter-radiation sensor passes through the first through hole.

3. The automobile seat basin frame special-shaped punching and shaping die according to claim 2, characterized in that: A sliding block is provided at the lower end of the inner shaping column, and a sliding groove matched with the sliding block is provided on the inner wall of the concave hole.

4. The automobile seat basin frame special-shaped punching and shaping die according to claim 2, characterized in that: The second return spring is connected to the lower end of the inner shaping column; the electric wire of the electromagnet passes through the second return spring.

5. The automobile seat basin frame special-shaped punching and shaping die according to claim 2, characterized in that: The inner shaping column is provided with a second through hole cooperating with the infrared radiation sensor; when the inner shaping column descends and reaches the lowest point of its stroke, the infrared light of the infrared radiation sensor passes through the second through hole.

6. The automobile seat basin frame special-shaped punching and shaping die according to claim 1, characterized in that: The shaping and profiling block is C-shaped, the leaning block is located in the C-shaped area of ​​the shaping and profiling block and there is a distance between the leaning block and the shaping and profiling block; a blanking trough is provided on the lower die, and the blanking trough is located directly below the distance.

7. The automobile seat basin frame special-shaped punching and shaping die according to claim 1, characterized in that: The positioning assembly includes a plurality of positioning pins and a plurality of positioning rods distributed around the shaping and profiling block.

8. A method for applying a special-shaped punching and shaping die for a car seat pan frame, using the special-shaped punching and shaping die for a car seat pan frame according to any one of claims 1 to 7, characterized in that: The method comprises the steps of: The car seat frame is placed on the shaping block under the positioning function of the positioning component and fixed by the electromagnet; The upper die moves downward, and the slider drives the punch to move and contact the car seat frame under the action of the inclined surface and the leaning block, and the elastic pressing block presses the car seat frame; The upper die continues to descend, and the punch cooperates with the concave hole to punch the car seat basin frame. After the punching is completed, the upper die continues to descend, and the upper shaping step shapes the upper edge of the punched hole. The shaping profiling block and the profiling shaping groove shape the car seat basin frame. The upper die moves upward, and the punch gradually returns to its original position under the action of the first return spring. At the same time, the punch drives the inner shaping column upward along the concave hole under the adsorption action of the electromagnet. The lower shaping surface on the inner shaping column shapes the lower edge of the punched hole. The punched waste is clamped by the punch and the inner shaping column and taken out of the concave hole. The upper die continues to move upward. When the detection sensor detects that the inner shaping column exceeds the set distance of the initial position, the electromagnet is controlled to lose power for the set time. The punch moves upward to separate from the punched waste, and the punched waste returns to the punched hole. The car seat frame is removed, and the punched waste slides down the punching slope, and the electromagnet is restored to the energized state.

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