Suspension type side punching structure

Abstract

The utility model discloses a suspension type side punching structure, which is characterized in that a shovel machine is arranged on a stripping component, after a punching angle is set, a guide groove is arranged on the shovel machine along the punching direction, and a return hook is correspondingly arranged on a sliding block to serve as a sliding structure matched with the guide groove, so that the arrangement of the shovel machine does not interfere with the movement of the sliding block and a punch structure; the stroke and the direction of the sliding block and the return hook are determined by the guide groove, the stroke of the sliding block is effectively reduced, the punching efficiency is further improved, structural limitation and abrasion interaction during punching are reduced, and the service life of the punching structure is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts manufacturing, more specifically, the utility model relates to a suspension type side punching structure. BACKGROUND

[0002] When the punching die of the automobile part is designed and manufactured, the punching angle of some parts is not perpendicular to the stamping front face of the part, the angle requirement is high, the shovel is generally used to press the position of the positioning slider, at present, for the side punching structure with the punching angle, one kind sets up the guide seat with completely matched size as the shovel limiting guide, the structure arrangement is compact and limited, the guide distance is long, another kind sets up the driving block on the pressing core, the interference phenomenon with the product is easy to appear, therefore, when the angle requirement exists in the punching angle of the part, the shovel placing position is limited, the installation is difficult, it is necessary to reasonably design the installation position and improve the side punching quality of the part. SUMMARY

[0003] The utility model aims at providing a suspension type side punching structure to solve the technical problem that the shovel installation position is limited when the side punching structure in the prior art is aimed at the punching angle of the part which is not perpendicular to the stamping front face of the part.

[0004] In order to realize these purposes and other advantages according to the utility model, a suspension type side punching structure is provided, which comprises upper die seat, slider, punch, material removal assembly and lower die plate arranged in sequence from top to bottom, the part to be punched is fixed on the upper surface of the lower die plate, the limit column is symmetrically arranged on the outer side of the lower die plate, the upper end of the limit column is used for abutting and limiting the downward movement of the material removal assembly, the bottom of the upper die seat is provided with slider seat, the upper end of the slider is slidably connected to the slider seat in the direction perpendicular to the punching, the nitrogen spring is connected between the slider seat and the slider, the punch is fixed on the bottom surface of the slider in the punching direction, and is used for punching the part after passing through the material removal assembly, the lower end of the slider in the sliding direction is connected with the return hook, the material removal assembly is suspended and connected to the bottom of the upper die seat through the spring in the vertical direction, the shovel is installed on the upper part of the material removal assembly on the side where the return hook is located, the guide groove is formed in the punching direction downward from the end of the shovel towards the return hook, and the return hook can enter the guide groove and slide along the guide groove.

[0005] Preferably, the bottom of the slider is connected with the upper pad plate and the upper clamping plate in sequence downward, the upper end of the punch is fixedly connected with the upper clamping plate, the material removal assembly comprises the material removal plate arranged horizontally, the avoiding hole is formed in the material removal plate, the size of the upper section of the avoiding hole is greater than the projection size of the upper clamping plate in the horizontal plane, the lower section of the avoiding hole is provided with the hole position corresponding to the number of the punch, and the hole position size is greater than the projection size of the punch in the horizontal plane, so as to avoid the upper clamping plate and the punch during the punching, the bottom surface of the material removal plate is connected with the material removal insert at the position below the avoiding hole, the bottom of the material removal insert is used for abutting the upper surface of the part to be punched, and the punch punches the part to be punched after passing through the avoiding hole and the material removal insert.

[0006] Preferably, a return spring is provided at the bottom of the guide groove, extending upwards along the guide groove, to lift the return hook and disengage it from the shovel.

[0007] Preferably, the upper end of the lower template has a die hole facing downwards corresponding to the punching position, and a lower die insert is provided in the die hole corresponding to the punching position. The top of the lower die insert and the top surface of the lower template jointly support the part to be punched. A waste channel is provided inside the lower template below the die hole along the punching direction.

[0008] Preferably, the guide groove is provided through the shovel on the left and right sides facing the slider, the return hook is a C-shaped rod structure perpendicular to the guide groove, the two ends of the return hook are fixedly connected to the two sides of the slider in the sliding direction, and the middle part of the return hook is configured to cooperate with the guide groove so as to slide up and down in close contact with the guide groove.

[0009] Preferably, the bottom of the upper die holder is provided with an oblique groove along the direction perpendicular to the punching hole, the upper end of the slider seat is installed in the oblique groove, and the lower end of the slider seat is symmetrically connected to wear-resistant blocks on both sides in the length direction, and the slider is slidably connected between a pair of wear-resistant blocks.

[0010] This utility model has at least the following beneficial effects: The suspended side punching structure of this utility model sets the shovel on the stripping assembly, sets the punching angle, and sets a guide groove on the shovel along the punching direction. Correspondingly, a return hook is set on the slider as a sliding structure that cooperates with the guide groove. The setting of the shovel does not interfere with the movement of the slider and punch structure. The stroke and direction of the slider and return hook are determined by the guide groove. The stroke of the slider is effectively reduced, which further improves the punching efficiency, reduces the structural constraints and wear interaction during punching, and helps to improve the service life of the punching structure.

[0011] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0012] Figure 1 This is a front view of the suspended side-punching structure of this utility model in the mold-opening state;

[0013] Figure 2 This is a front view of the suspended side-impact structure of this utility model in the contact state;

[0014] Figure 3 This is a front view of the suspended side-impact structure of this utility model in the closed state.

[0015] Explanation of the reference numerals in the accompanying drawings: 1. Upper mold base, 2. Slider base, 3. Slider, 4. Punch, 5. Stripper assembly, 6. Lower mold plate, 7. Limiting post, 8. Nitrogen spring, 9. Shovel, 10. Guide groove, 11. Return spring, 12. Clearance hole, 13. Stripper insert, 14. Return hook, 15. Angled groove, 16. Wear-resistant block, 17. Upper pad, 18. Upper clamping plate, 19. Lower mold insert, 20. Scrap channel. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0017] In the description of this utility model, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] like Figure 1 , Figure 2 , Figure 3 As shown, the suspended side-punching structure of this utility model includes, from top to bottom, an upper die base 1, a slider 3, a punch 4, a stripper assembly 5, and a lower die plate 6. The part to be punched is fixed on the upper surface of the lower die plate 6. Limiting posts 7 are symmetrically arranged on the outer side of the lower die plate 6. The upper end of the limiting post 7 is used to abut against and restrict the downward movement of the stripper assembly 5. A slider base 2 is installed at the bottom of the upper die base 1. The upper end of the slider 3 is slidably connected to the slider base 2 in a direction perpendicular to the punching direction. Nitrogen gas is connected between the slider base 2 and the slider 3. Spring 8 and punch 4 are fixed to the bottom surface of slider 3 along the punching direction. They are used to pass through stripping assembly 5 and punch towards the part. A return hook 14 is connected to the lower end of slider 3 in the sliding direction. Stripping assembly 5 is suspended vertically by spring and connected to the bottom of upper die base 1. A scraper 9 is installed on the upper part of stripping assembly 5 on the side corresponding to the return hook 14. A guide groove 10 is opened at the end of scraper 9 facing the return hook 14 and downward along the punching direction. The return hook 14 can enter the guide groove 10 and slide along the guide groove 10.

[0019] Existing punching structures typically include an upper die base 1, a lower die base, a punch 4, and a pressure plate. The upper die base 1 is connected to a downward-extending power mechanism. A spring connection and guide post guidance are provided between the upper die base 1 and the pressure plate, forming a suspension connection. This drives the punch 4 and pressure plate (corresponding to the stripping assembly 5 in this embodiment), which are connected to the bottom of the upper die base 1, to move downwards towards the part, passing through the pressure plate until the stripping insert 13 abuts against the surface of the part. The pressure plate is then stopped by a limiting structure, and the upper die base 1 continues to drive the punch 4 downwards, allowing the punch 4 to continue punching. The nitrogen spring 8 is also a commonly used structure, and its principle and function will not be elaborated here. The punching direction in this embodiment is... Figure 1 The angle between the right horizontal lines is 95 degrees. The non-vertical punching is used. The slider 3 is set to slide at a 5-degree angle relative to the right horizontal line along the sliding direction of the slider seat 2. The guide groove 10 is at a 95-degree angle to the right horizontal line. The return hook 14 is connected to the slider 3 in the same straight line direction. A convex key can be provided at the top of the limiting post 7, and a concave hole is provided at the bottom of the stripping assembly 5. When the stripping assembly 5 abuts against the limiting post 7, the convex key and the concave hole engage to restrict the horizontal displacement of the stripping assembly 5. The suspended side punching structure includes the following process during use:

[0020] (1) Combination Figure 1 As shown, before punching, the part is placed on the lower template 6;

[0021] (2) Combination Figure 2 As shown, the upper mold base 1 moves down, which drives the slider base 2, slider 3, stripper assembly 5, and shovel 9 to move down synchronously and gradually approach the part. The stripper assembly 5 is in contact with the part blank, and at the same time, the stripper assembly 5 contacts the limit post 7, which restricts its downward movement, and the pressing is completed.

[0022] (3) Combination Figure 3 As shown, the slider seat 2, slider 3, punch 4, and return hook 14 apply a downward force to the upper die seat 1 and a rightward sliding force given by the nitrogen spring 8, forcing the return hook 14 to move along the contact surface of the guide groove 10 of the shovel 9. The punch 4 works along the punching direction, passes through the stripping assembly 5 until the stroke is released and the punching is completed.

[0023] (4) As the upper die holder 1 moves upward, the stripping assembly 5 gradually releases pressure on the part. At this time, the slider seat 2, nitrogen spring 8, and return hook 14 are forced upward by the upward force driven by the upper die holder 1 and the nitrogen return force to disengage the stripping assembly 5 from the punched product part until the return hook 14 disengages upward from the guide groove 10 of the shovel 9. The movement ends and the side punching structure returns to its original position. Figure 1 The location shown.

[0024] (5) Repeat this stamping process to perform side stamping operations on a batch of part blanks.

[0025] The suspended side punching structure of this utility model sets the shovel 9 on the stripping assembly 5. After setting the punching angle, a guide groove 10 is set on the shovel 9 along the punching direction. A return hook 14 is set on the slider 3 as a sliding structure that cooperates with the guide groove 10. The setting of the shovel 9 does not interfere with the movement of the slider 3 and the punch 4. The stroke and direction of the slider 3 and the return hook 14 are determined by the guide groove 10. The stroke of the slider 3 is effectively reduced, which further improves the punching efficiency, reduces the structural constraints and wear interaction during punching, and helps to improve the service life of the punching structure.

[0026] In another technical solution, such as Figures 1-3 As shown, the bottom of the slider 3 is connected to the upper pad 17 and the upper clamping plate 18 in sequence. The upper end of the punch 4 is fixedly connected to the upper clamping plate 18. The stripping assembly 5 includes a horizontally arranged stripping plate with a clearance hole 12. The upper part of the clearance hole 12 is larger than the projection size of the upper clamping plate 18 in the horizontal plane. The lower part of the clearance hole 12 is provided with holes corresponding to the number of punches 4, and the hole size is larger than the projection size of the punch 4 in the horizontal plane, so as to avoid the upper clamping plate 18 and the punch 4 during punching. The bottom surface of the stripping plate is connected to a stripping insert 13 located below the clearance hole 12. The bottom of the stripping insert 13 is used to fit the upper surface of the part to be punched. The punch 4 passes through the clearance hole 12 and the stripping insert 13 and punches towards the part to be punched.

[0027] The upper pad 17 is set as a buffer layer to mainly bear the impact force generated during the stamping process, and evenly distribute the pressure transmitted by the punch 4 to the upper die base 1 to avoid local stress concentration that could cause deformation or damage to the upper die base 1. The upper clamping plate 18 serves as the mounting base for the punch 4. Through precision machining of holes or slots, the position and verticality of the punch 4 are ensured to prevent displacement during the stamping process and ensure forming accuracy. The stripper plate is set horizontally. The upper section of the clearance hole 12 avoids the punch 4 and the upper clamping plate 18, generally with a width of 5-10mm on each side of the horizontal plane. The lower section of the clearance hole 12 is a round hole about 0.5cm larger than the diameter of the punch 4. The stripper insert 13 matches the space between the part to be punched and the bottom of the stripper plate after it is placed on the lower die plate 6. The bottom of the stripper plate abuts against the upper end of the limiting post 7, stops its downward movement and limits it, and then the punch 4 continues to punch.

[0028] In another technical solution, such as Figures 1-3 As shown, a return spring 11 is provided at the bottom of the guide groove 10 and upward along the guide groove 10 to lift the return hook 14 away from the shovel 9 and improve the upward reset efficiency of the return hook 14.

[0029] In another technical solution, such as Figures 1-3As shown, the upper end of the lower template 6 has a die hole facing downwards corresponding to the punching position. A lower die insert 19 is provided in the die hole corresponding to the punching position. The top of the lower die insert 19 and the top surface of the lower template 6 jointly support the part to be punched, ensuring the correct positioning and stable deformation of the part blank during the punching process. A waste channel 20 is provided inside the lower template 6 below the die hole along the punching direction. The waste generated during the punching process is discharged through the waste channel 20.

[0030] In another technical solution, such as Figures 1-3 As shown, the guide groove 10 is provided through the shovel 9 on the left and right sides facing the slider 3. The return hook 14 is a C-shaped rod structure that is perpendicular to the guide groove 10. The two ends of the return hook 14 are fixedly connected to the slider 3 on both sides in the sliding direction. The middle part of the return hook 14 is configured to cooperate with the guide groove 10 so as to slide up and down in close contact with the guide groove 10.

[0031] The detachable fixed connection between the return hook 14 and the slider 3 facilitates the replacement and maintenance of the return hook 14. The return hook 14 is sleeved on the outer periphery of the guide groove 10 facing the slider 3, and slides back and forth along the guide groove 10 in the punching direction to ensure that the movement direction of the slider 3 and the punch 4 is determined and to avoid misalignment.

[0032] In another technical solution, such as Figures 1-3 As shown, the bottom of the upper mold base 1 is provided with an oblique groove 15 along the direction perpendicular to the punching hole. The upper end of the slider base 2 is installed in the oblique groove 15. The lower end of the slider base 2 is symmetrically connected to wear-resistant blocks 16 on both sides of the length direction. The slider 3 is slidably connected between a pair of wear-resistant blocks 16.

[0033] The nitrogen spring 8 is installed in the inclined groove 15 through the slider seat 2. The slider 3 is provided with a push end that abuts against the working end of the nitrogen spring 8 so that the slider 3 can slide at the bottom of the slider seat 2 and inside a pair of wear-resistant blocks 16. When the return hook 14 moves down along the guide groove 10, the nitrogen spring 8 provides a stable and controllable elastic force to assist in the stamping and return operation.

[0034] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the drawings shown and described herein.

Claims

1. A suspended side-impact structure, characterized in that, The assembly includes, from top to bottom, an upper die base, a slider, a punch, a stripper assembly, and a lower die plate. The part to be punched is fixed on the upper surface of the lower die plate. Limiting posts are symmetrically arranged on the outer side of the lower die plate. The upper end of the limiting posts is used to abut against and restrict the downward movement of the stripper assembly. A slider seat is installed at the bottom of the upper die base. The upper end of the slider is slidably connected to the slider seat along the direction perpendicular to the punching. A nitrogen spring is connected between the slider seat and the slider. The punch is fixed to the bottom surface of the slider along the punching direction and is used to punch the part after passing through the stripper assembly. A return hook is connected to the lower end of the slider in the sliding direction. The stripper assembly is vertically suspended by a spring and connected to the bottom of the upper die base. A scraper is installed on the upper part of the stripper assembly on the side corresponding to the return hook. A guide groove is opened downward along the punching direction on the end of the scraper facing the return hook. The return hook can enter the guide groove and slide along the guide groove.

2. The suspended side-impact structure as described in claim 1, characterized in that, The bottom of the slider is connected to an upper pad and an upper clamping plate in sequence. The upper end of the punch is fixedly connected to the upper clamping plate. The stripping assembly includes a horizontally arranged stripping plate with a clearance hole. The upper part of the clearance hole is larger than the projection size of the upper clamping plate in the horizontal plane. The lower part of the clearance hole is set with holes corresponding to the number of punches, and the hole size is larger than the projection size of the punches in the horizontal plane, so as to avoid the upper clamping plate and punches during punching. The bottom surface of the stripping plate is connected to a stripping insert located below the clearance hole. The bottom of the stripping insert is used to fit the upper surface of the part to be punched. After the punch passes through the clearance hole and the stripping insert, it punches towards the part to be punched.

3. The suspended side-impact structure as described in claim 1, characterized in that, A return spring is provided at the bottom of the guide groove, extending upwards along the guide groove, to lift the return hook and disengage it from the shovel.

4. The suspended side-impact structure as described in claim 1, characterized in that, The upper end of the lower template has a die hole corresponding to the punching position. A lower die insert is provided in the die hole corresponding to the punching position. The top of the lower die insert and the top surface of the lower template jointly support the part to be punched. A waste channel is provided inside the lower template below the die hole along the punching direction.

5. The suspended side-impact structure as described in claim 1, characterized in that, The guide groove is provided through the shovel on the left and right sides facing the slider. The return hook is a C-shaped rod structure that is perpendicular to the guide groove. The two ends of the return hook are fixedly connected to the two sides of the slider in the sliding direction, and the middle part of the return hook is configured to cooperate with the guide groove so as to slide up and down in close contact with the guide groove.

6. The suspended side-impact structure as described in claim 1, characterized in that, The bottom of the upper die holder has an oblique groove perpendicular to the punching direction. The upper end of the slider seat is installed in the oblique groove. The lower end of the slider seat is symmetrically connected to wear-resistant blocks on both sides in the length direction. The slider is slidably connected between a pair of wear-resistant blocks.

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