Thin-wall part die

Abstract

The invention relates to the related technical field of thin-wall part dies, and discloses a thin-wall part die, the thin-wall part die comprises an upper die part and a lower die part, the upper die part comprises an upper die base, a connecting plate and a stamping plate, the connecting plate is fixedly connected with the upper die base, and the connecting plate is elastically connected with the stamping plate. Through the arrangement of the forming mold, the detection elastic top, the sorting elastic top and the guide inclined plane, the part mold can be accurate in moving position, so that the production efficiency and the yield are improved, a formed thin-wall annular workpiece is moved out of the stamping mold along with the forming mold, and the forming mold is convenient to operate during demolding. The workpiece can be taken out from the upper portion of the forming die, so that machining of annular workpieces with different sectional areas can be achieved, all the formed workpieces are detected in the stamping process, and the product quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field related to thin-walled part molds, in particular to a thin-walled part mold. Background Art

[0002] A parts production mold is a mold that performs shape processing or surface treatment on parts and is widely used in production and processing.

[0003] Most of the existing parts production molds remain in a relatively stable state after being made, and can only process and produce a single product, resulting in the problems of low practicality of the mold and poor processing efficiency, and the inability to meet the requirements of different specifications of the same product. In order to solve such problems, a thin-walled parts mold is proposed. Summary of the invention

[0004] The present invention provides a thin-walled part mold, which solves the problems in the above-mentioned background technology.

[0005] The present invention solves the technical problem by adopting the following technical solutions:

[0006] A thin-walled part mold, comprising an upper mold part and a lower mold part, the upper mold part comprising an upper mold base, a connecting plate and a stamping plate, the connecting plate is fixedly connected to the upper mold base, the connecting plate is elastically connected to the stamping plate, the lower mold part comprises a lower mold base and a lower template fixedly installed together, the upper mold base is slidably connected to the lower mold base through a guide mechanism; a drawing punch, a punching punch and a shaping punch are sequentially installed on the connecting plate of the upper mold part from the upstream end, the mounting end of the shaping punch is pressed against the upper mold base through an elastic member, the free ends of the drawing punch, the punching punch and the shaping punch all pass through the stamping plate, and a stamping convex ring is provided on the stamping plate around the drawing punch, the punching punch and the shaping punch, and the lower template of the lower mold part is sequentially connected to the connecting plate A drawing spring top, a blanking hole and a shaping spring top are provided correspondingly; a forming die is provided between the stamping plate and the lower template, and a drawing die, a blanking die and a shaping die are provided on the forming die in sequence; a supporting spring top for supporting the forming die is provided on the lower die seat, a detection spring top is provided on the lower die seat, the detection spring top is located downstream of the shaping spring top, a detection die is provided on the forming die, the detection spring top is vertically slidably installed on the lower die seat, the top of the detection spring top extends out of the lower template, a sensor sheet is provided on the lower die seat, and the distance between the bottom of the detection spring top and the sensor sheet is equal to the length of the detection spring top extending out of the lower template; a detection tightening ring is provided on the stamping plate, and the position of the detection tightening ring corresponds to the position of the detection spring top.

[0007] Preferably, the middle part of the detection bullet top is provided with an annular boss, and the annular boss separates the detection bullet top into a detection section and a sensing section. A stepped through hole for accommodating the annular boss and the detection section is provided on the lower template, and the detection section passes through the lower template, and a columnar through hole for accommodating the sensing section is provided on the lower mold base, and a sensing sheet is installed at the bottom of the columnar through hole, and a compression spring is provided between the annular boss and the lower template, and the compression spring is sleeved on the sensing section.

[0008] Preferably, a sorting bullet top is provided on the lower die seat, the sorting bullet top is located downstream of the detection bullet top, the sorting bullet top is vertically slidably installed on the lower die seat, the top of the sorting bullet top extends out of the lower template, and a sorting concave mold is provided on the molding mold.

[0009] Preferably, the lower surface of the stamping plate is provided with a sorting recess, the position of the sorting recess corresponds to the sorting spring top, the cross-sectional area of ​​the sorting recess is greater than or equal to the large end cross-sectional area of ​​the thin-walled annular workpiece, and the shapes correspond.

[0010] Preferably, the bullet-picking top has a center hole that penetrates the bullet-picking top axially, and the lower mold base is provided with an air flow channel, which is connected to the center hole, and the air flow channel is connected to an electromagnetic reversing valve, and the air flow channel is connected to a high-pressure air source.

[0011] Preferably, the induction plate and the electromagnetic reversing valve are both connected to a control unit.

[0012] Preferably, a guiding slope is provided at the bottom of the forming die, and the guiding slope is located at an end away from the drawing die.

[0013] Preferably, the edge of the steel strip used as raw material is provided with equidistant positioning elements arranged in an array, and the upper surface of the forming mold is provided with a plurality of positioning protrusions for positioning the steel strip, and the height of the positioning protrusions is less than or equal to the thickness of the steel strip.

[0014] The advantages and positive effects of the present invention are: through the setting of the forming mold, the detection spring top, the sorting spring top and the guide bevel, the part mold can be accurately moved to the position, thereby improving the production efficiency and the yield rate, and the formed thin-walled annular workpiece is moved out of the stamping mold together with the forming mold. During demolding, the workpiece can be taken out from the top of the forming mold, thereby realizing the processing of annular workpieces with different cross-sectional areas, and it also has the effect of detecting all formed workpieces during the stamping process, thereby improving the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a schematic diagram of the structure of the present invention;

[0017] Figure 2 yes Figure 1 Schematic diagram of the detection spring top working of the automatic stamping die when inspecting the finished product;

[0018] Figure 3 yes Figure 1 A schematic diagram of the structure of the steel strip used as a raw material;

[0019] Figure 4 yes Figure 1 Schematic diagram of the steel strip used as raw material combined with the forming template of the automatic stamping die;

[0020] The symbols in the accompanying drawings are described as follows:

[0021] 1. Upper die seat; 10. Forming template; 1001. Drawing die; 1002. Blanking die; 1003. Shaping die; 1004. Detection die; 1005. Sorting die; 1006. Guide slope; 1007. Positioning protrusion; 11. Drawing spring top; 12. Blanking hole; 13. Shaping spring top; 14. Support spring top; 15. Detection spring top; 1501. Detection section; 1502. Annular boss; 1503. Compression spring; 1504. Induction section; 16. Induction sheet; 17. Sorting spring top; 18. Solenoid reversing valve; 19. Air flow channel;

[0022] 2. Connecting plate; 20. Steel belt; 2001. Positioning hole;

[0023] 3. Stamping plate; 301. Stamping convex ring; 302. Testing top tightening ring; 303. Sorting depression;

[0024] 4. Drawing punch;

[0025] 5. Punching punch;

[0026] 6. Shaping punch;

[0027] 7. Elastic parts;

[0028] 8. Lower die seat;

[0029] 9. Download the template. DETAILED DESCRIPTION

[0030] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0031] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings:

[0032] Reference Figures 1 to 4As shown, a part production mold is a mold that performs shape processing or surface treatment on parts, and is widely used in production and processing. Most of the existing part production molds maintain a relatively stable state after being made, and can only process and produce a single product, resulting in low practicality of the mold and poor processing efficiency, and it is also impossible to meet the requirements of different specifications of the same product. In order to solve such problems, a thin-walled part mold is proposed, including an upper mold part and a lower mold part, the upper mold part includes an upper mold base 1, a connecting plate 2 and a stamping plate 3, the connecting plate 2 is fixedly connected to the upper mold base 1, the connecting plate 2 is elastically connected to the stamping plate 3, and the lower mold part includes a mold fixedly installed on The lower die base 8 and the lower template 9 are raised, and the upper die base 1 is slidably connected to the lower die base 8 through a guiding mechanism; the connecting plate 2 of the upper die part is provided with a drawing punch 4, a punching punch 5 and a shaping punch 6 in sequence from the upstream end, and the mounting end of the shaping punch 6 is pressed against the upper die base 1 through an elastic member 7, and the free ends of the drawing punch 4, the punching punch 5 and the shaping punch 6 all pass through the stamping plate 3, and the stamping plate 3 is provided with a stamping convex ring 301 around the drawing punch 4, the punching punch 5 and the shaping punch 6, and the lower template 9 of the lower die part is provided with a drawing spring top 11, a blanking hole 12 and a shaping spring top 13 in sequence corresponding to the connecting plate 2; the stamping plate 3 and the lower die A forming template 10 is provided between the plates 9, and a drawing die 1001, a blanking die 1002 and a shaping die 1003 are sequentially provided on the forming template 10, and a supporting spring top 14 for supporting the forming template 10 is provided on the lower die seat 8, and a detection spring top 15 is provided on the lower die seat 8, and the detection spring top 15 is located downstream of the shaping spring top 13, and a detection die 1004 is provided on the forming template 10, and the detection spring top 15 is vertically slidably installed on the lower die seat 8, and the top of the detection spring top 15 extends out of the lower template 9, and a sensor sheet 16 is provided on the lower die seat 8, and the distance between the bottom of the detection spring top 15 and the sensor sheet 16 is equal to the distance between the detection spring top 15 extends out of the length of the lower template 9; the stamping plate 3 is provided with a detection tightening ring 302, and the position of the detection tightening ring 302 corresponds to the position of the detection spring top 15; through the setting of the forming mold and the detection spring top 15 and the picking spring top 17 and the guide bevel 1006, the part mold can be accurately moved, thereby improving the production efficiency and the yield rate, and the formed thin-walled annular workpiece is moved out of the stamping mold together with the forming mold. When demolding, the workpiece can be taken out from the top of the forming mold, thereby realizing the processing of annular workpieces with different cross-sectional areas, and it also has the effect of detecting all formed workpieces during the stamping process, thereby improving the product quality.

[0033] It should be noted that the lower die seat 8 is provided with a detection spring top 15, which is located downstream of the shaping spring top 13. Correspondingly, the forming template 10 is provided with a detection die 1004 for detecting whether the workpiece after stamping is qualified, especially whether the axial height is qualified. The detection spring top 15 is vertically slidably installed on the lower die seat 8, and the top of the detection spring top 15 extends out of the lower template 9. The lower die seat 8 is provided with a sensor sheet 16, and the distance between the bottom of the detection spring top 15 and the sensor sheet 16 is equal to the length of the detection spring top 15 extending out of the lower template 9; the stamping plate 3 is provided with a detection die 1004 for detecting whether the workpiece after stamping is qualified, especially whether the axial height is qualified. The detection spring top 15 is vertically slidably installed on the lower die seat 8, and the top of the detection spring top 15 extends out of the lower template 9. The lower die seat 8 is provided with a sensor sheet 16, and the distance between the bottom of the detection spring top 15 and the sensor sheet 16 is equal to the length of the detection spring top 15 extending out of the lower template 9; There is a detection tightening ring 302, and the position of the detection tightening ring 302 corresponds to the position of the detection spring top 15. When the stamping plate 3 is pressed down, the detection tightening ring 302 tightens the annular workpiece on the forming template 10, and presses down the end of the detection spring top 15 extending out of the lower template 9. If the product is qualified, the bottom end of the detection spring top 15 just contacts the sensing sheet 16. At this time, the sensing sheet 16 gives an induction signal, indicating a qualified product. If the product is unqualified, the bottom end of the detection spring top 15 cannot contact the sensing sheet 16. At this time, the sensing sheet 16 gives another induction signal, indicating a waste product.

[0034] In addition, the middle part of the detection spring top 15 is provided with an annular boss 1502, and the annular boss 1502 separates the detection spring top 15 into a detection section 1501 and a sensing section 1504. A stepped through hole for accommodating the annular boss 1502 and the detection section 1501 is provided on the lower template 9. The detection section 1501 passes through the lower template 9. A columnar through hole for accommodating the sensing section 1504 is provided on the lower mold base 8. A sensing sheet 16 is installed at the bottom of the columnar through hole. The sensing sheet 16 is usually a metal sheet. A compression spring 1503 is provided between the annular boss 1502 and the lower template 9. The compression spring 1503 is mounted on the sensing section 1504.

[0035] Furthermore, the lower die base 8 is provided with a sorting bullet top 17, which is located downstream of the detection bullet top 15. The sorting bullet top 17 is vertically slidably installed on the lower die base 8, and the top of the sorting bullet top 17 extends out of the lower template 9. Correspondingly, the molding template 10 is provided with a sorting die 1005.

[0036] It should also be noted that in order to enable the sorting bullet top 17 to push out the stamped annular workpiece, a sorting recess 303 is provided on the lower surface of the stamping plate 3. The position of the sorting recess 303 corresponds to the sorting bullet top 17, and the cross-sectional area of ​​the sorting recess 303 is greater than or equal to the large end cross-sectional area of ​​the thin-walled annular workpiece, and the shapes correspond, so as to accommodate the annular workpiece when the sorting bullet top 17 is lifted.

[0037] Furthermore, the bullet picking top 17 has a center hole that axially penetrates the bullet picking top 17, and an air flow channel 19 is provided on the lower mold base 8. The air flow channel 19 is connected to the center hole, and the air flow channel 19 is connected to an electromagnetic reversing valve 18. The air flow channel 19 is connected to a high-pressure air source, and the electromagnetic reversing valve 18 plays a role in connecting or closing the high-pressure air source.

[0038] It should be noted that the induction plate 16 and the electromagnetic reversing valve 18 are both connected to the control unit. The induction plate 16 and the electromagnetic reversing valve 18 are usually connected to the control unit by electrical connection. Of course, they can also be connected to the control unit by wireless signal connection. Technical personnel in this field can set it according to their own needs. It is not limited here. The control unit is usually a PLC programmable controller. The induction plate 16 transmits the signal to the PLC. The PLC gives instructions after program comparison to control the electromagnetic reversing valve 18 to operate. If the test result is a qualified product, the electromagnetic reversing valve 18 closes the air flow channel 19, and the picking up top 17 only lifts the qualified product workpiece, and the subsequent staff collects it centrally; if the test result is a scrap part, the electromagnetic reversing valve 18 connects the air flow channel 19, and when the mold is opened, the picking up top 17

[0039] While lifting up the waste workpiece, the high-pressure airflow in the airflow channel 19 blows out the waste workpiece, so that the waste workpiece can be picked out from the forming mold, so that each stamped workpiece can be inspected with high efficiency and high product quality.

[0040] In addition, referring to Figure - Figure, a guiding slope 1006 is provided at the bottom of the forming template 10, and the guiding slope 1006 is located at the end away from the drawing die 1001. When the forming template 10 moves downstream, the guiding slope 1006 can press the drawing spring top 11, the shaping spring top 13, the detection spring top 15 and the sorting spring top 17 one by one under the forming template 10, thereby reducing the jamming phenomenon when the forming template 10 moves, improving the positioning accuracy of the forming template 10, and thereby improving the product quality of thin-walled annular workpieces.

[0041] It is worth mentioning that the edge of the steel strip 20 used as raw material is provided with an array of equidistant positioning holes 2001, and the upper surface of the forming template 10 is provided with a number of positioning protrusions 1007 for positioning the steel strip 20. The height of the positioning protrusion 1007 is less than or equal to the thickness of the steel strip 20. After the operator positions the forming template 10 on the steel strip 20, through the cooperation of the positioning protrusion 1007 and the positioning hole 2001, the steel strip 20 and the forming template 10 will no longer have relative displacement in the moving direction of the steel strip 20. Therefore, accurately positioning the forming template 10 can accurately position the steel strip 20, thereby further improving the product quality of thin-walled annular workpieces.

[0042] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive, and therefore the present invention is not limited to the embodiments described in the specific implementation manners. Any other implementation manners derived by those skilled in the art based on the technical solutions of the present invention also fall within the scope of protection of the present invention.

Claims

1. A thin-walled parts mold, characterized in that: The invention comprises an upper die part and a lower die part, wherein the upper die part comprises an upper die base (1), a connecting plate (2) and a punching plate (3), wherein the connecting plate (2) is fixedly connected to the upper die base (1), and the connecting plate (2) is elastically connected to the punching plate (3); the lower die part comprises a lower die base (8) and a lower mold plate (9) fixedly installed together, and the upper die base (1) is slidably connected to the lower die base (8) via a guide mechanism; a drawing punch (4), a punching punch (5) are sequentially installed on the connecting plate (2) of the upper die part from the upstream end. and a shaping punch (6), the mounting end of the shaping punch (6) is pressed against the upper die seat (1) through an elastic member (7), the free ends of the drawing punch (4), the punching punch (5) and the shaping punch (6) all pass through the stamping plate (3), the stamping plate (3) is provided with a stamping convex ring (301) surrounding the drawing punch (4), the punching punch (5) and the shaping punch (6), the lower die plate (9) of the lower die part is provided with a drawing spring top (11), a blanking hole (12) in sequence corresponding to the connecting plate (2), and a punching convex ring (301) surrounding the drawing punch (4), the punching punch (5) and the shaping punch (6). ) and a shaping spring top (13); a forming die is provided between the stamping plate (3) and the lower template (9), the forming die is provided with a drawing die (1001), a blanking die (1002) and a shaping die (1003) in sequence, the lower die seat (8) is provided with a supporting spring top (14) for supporting the forming die, the lower die seat (8) is provided with a detection spring top (15), the detection spring top (15) is located downstream of the shaping spring top (13), the forming die is provided with a detection die (1004), the The detection spring top (15) is vertically slidably installed on the lower die base (8), the top of the detection spring top (15) extends out of the lower die plate (9), and a sensing sheet (16) is provided on the lower die base (8), and the distance between the bottom of the detection spring top (15) and the sensing sheet (16) is equal to the length of the detection spring top (15) extending out of the lower die plate (9); the stamping plate (3) is provided with a detection tightening ring (302), and the position of the detection tightening ring (302) corresponds to the position of the detection spring top (15).

2. A thin-walled part mold according to claim 1, characterized in that: The middle part of the detection spring top (15) is provided with an annular boss (1502), and the annular boss (1502) divides the detection spring top (15) into a detection section (1501) and a sensing section (1504). The lower mold plate (9) is provided with a stepped through hole for accommodating the annular boss (1502) and the detection section (1501). The detection section (1501) passes through the lower mold plate (9). The lower mold base (8) is provided with a columnar through hole for accommodating the sensing section (1504). A sensing sheet (16) is installed at the bottom of the columnar through hole. A compression spring (1503) is provided between the annular boss (1502) and the lower mold plate (9), and the compression spring (1503) is sleeved on the sensing section (1504).

3. A thin-walled part mold according to claim 2, characterized in that: The lower die base (8) is provided with a bullet-picking top (17), and the bullet-picking top (17) is located downstream of the detection bullet top (15). The bullet-picking top (17) is vertically slidably installed on the lower die base (8), and the top of the bullet-picking top (17) extends out of the lower template (9). The molding die is provided with a bullet-picking concave mold (1005).

4. A thin-walled part mold according to claim 3, characterized in that: The lower surface of the stamping plate (3) is provided with a sorting recess (303), the position of the sorting recess (303) corresponds to the sorting spring top (17), the cross-sectional area of ​​the sorting recess (303) is greater than or equal to the large end cross-sectional area of ​​the thin-walled annular workpiece, and the shapes are corresponding.

5. A thin-walled part mold according to claim 4, characterized in that: The bullet-picking top (17) has a center hole that penetrates the bullet-picking top (17) along the axial direction. The lower mold base (8) is provided with an air flow channel (19), and the air flow channel (19) is connected to the center hole. The air flow channel (19) is connected to an electromagnetic reversing valve (18), and the air flow channel (19) is connected to a high-pressure air source.

6. A thin-walled part mold according to claim 5, characterized in that: The induction plate (16) and the electromagnetic reversing valve (18) are both connected to a control unit.

7. A thin-walled part mold according to claim 6, characterized in that: A guiding inclined surface (1006) is provided at the bottom of the forming die, and the guiding inclined surface (1006) is located at an end away from the drawing die (1001).

8. A thin-walled part mold according to claim 7, characterized in that: The edge of the steel strip (20) used as the raw material is provided with equidistant positioning arranged in an array, and the upper surface of the forming mold is provided with a plurality of positioning protrusions (1007) for positioning the steel strip (20), and the height of the positioning protrusions (1007) is less than or equal to the thickness of the steel strip (20).

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