A punching die with quick-change punch head

Abstract

This utility model discloses a punching die with quick-change punch head, including a base support, a station switching cylinder, a stamping cylinder, a replaceable punch, a stamping seat, a lifting bracket, and gears. The stamping cylinder is fixed on the base support, and the replaceable punch is detachably fixed on the base support in front of the cylinder rod of the stamping cylinder. The lifting bracket is used to raise and lower the stamping seat. The stamping seat has a front and rear dual-station structure. A gear is set at the bottom of the lifting bracket. The single-sided rack connected to the cylinder rod of the station switching cylinder fixed on the base support meshes with the gear to drive the gear seat to rotate within a 180° range, realizing the switching of the stamping seat between the two stations. This utility model of a punching die with quick-change punch head can significantly improve punching efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of stamping die technology, and in particular relates to a punching die with quick punch switching. Background Technology

[0002] Multi-hole punching of metal sheets is a common stamping process. Improving punching efficiency involves the following aspects: 1) rapid replacement of metal sheets; 2) rapid replacement of punches; 3) switching of punching stations. Therefore, a punching die developed by combining the above three points can significantly improve the punching efficiency of metal sheets. Utility Model Content

[0003] The purpose of this invention is to provide a punching die with quick-change punch head, which aims to improve punching efficiency.

[0004] To achieve the above objectives, the technical solution of this utility model is to design a punching die with quick-change punch, including a base support, a station switching cylinder, a stamping cylinder, a replaceable punch, a stamping seat, a lifting support, and gears.

[0005] The base support includes a base, a worktable, a stamping cylinder mounting seat, a punch mounting seat, a lifting bracket support seat, and a shaft seat.

[0006] The workbench is arranged parallel to one end of the base. A stamping cylinder mounting seat is provided on the workbench, and a punch mounting seat is provided on the workbench in front of the stamping cylinder mounting seat. A lifting bracket support seat is provided at the other end of the base, and the area between the lifting bracket support seat and the workbench is the work station area. A shaft seat is provided on the base below the work area.

[0007] The cylinder body of the stamping cylinder is mounted on the stamping cylinder mounting base, and the cylinder rod of the stamping cylinder extends and retracts in the direction toward the work area; the replaceable punch is fixed to the punch mounting base in a detachable manner.

[0008] The replaceable punch includes a punch, a punch seat, a spring, and a punch mounting base. The rear end of the punch is connected to the punch seat. The punch mounting base has a through groove parallel to the worktable, and the punch seat moves with the punch within the through groove. The punch seat has a limiting structure to prevent the punch seat from dislodging from the front end of the through groove. The rear end of the through groove is for the cylinder rod of the stamping cylinder to extend into. A spring is also provided in the through groove, with one end connected to the punch seat and the other end connected to the inner wall of the rear end of the through groove. The lifting bracket is the result of driving the stamping base to move vertically. A gear is connected to the lower part of the lifting bracket, and the gear shaft is inserted into a shaft seat. The stamping base has two stamping stations, front and rear.

[0009] The workstation switching cylinder is fixed on the base of the base bracket. The cylinder rod of the workstation switching cylinder is connected to a single-sided rack, and the single-sided rack meshes with a gear. The base of the base bracket is provided with several cylinder rod support seats that support and guide the single-sided rack.

[0010] Furthermore, the side wall of the punch mounting base is provided with a limiting groove; the punch mounting base is provided with a limiting protrusion for engaging in the limiting groove; the outer end of the limiting protrusion of the punch mounting base is also provided with a limiting ball.

[0011] Furthermore, it also includes a lead screw motor; the lifting bracket consists of a bracket structure and a base structure, with the bottom of the bracket structure connected to the base structure; the top of the bracket structure is a motor base, the lead screw motor is fixed inside the motor base, and the shaft of the lead screw motor is connected to the lead screw, which is vertically downward; a lead screw seat is provided on the base structure of the lifting bracket, and the lower end of the lead screw extends into the lead screw seat; the stamping seat includes a connecting block, a slide, a fixed seat, a limiting baffle, and a gasket; the slide slides on the lead screw, and the front and rear ends of the slide are mirror-mounted with connecting blocks, each of the two connecting blocks being connected to a fixed seat; both the fixed seat and the connecting block have a long groove in the center; several gaskets and the outermost limiting baffle are fixed to both sides of the end face of the fixed seat by bolts.

[0012] Furthermore, guide grooves are provided on both sides of the slide block, and a vertical guide rail is provided inside the lifting bracket. The guide rail is embedded in the guide groove of the slide block, so that the slide block slides along the guide rail.

[0013] Furthermore, the base structure of the lifting bracket is provided with clearance grooves on the front and rear sides for avoiding the fixed seat; the front and rear ends of the base structure of the lifting bracket are arc surfaces, and the front end of the worktable is a smooth concave surface that can match the arc surfaces of the front and rear ends of the base structure of the lifting bracket.

[0014] The advantages and beneficial effects of this utility model are as follows:

[0015] 1) This utility model enables the rapid replacement of punches of different specifications to meet different punching requirements.

[0016] 2) This utility model can realize the alternating operation of two workstations, which greatly improves work efficiency.

[0017] 3) The design of the lifting bracket allows for vertical adjustment of the punch position without removing the metal sheet.

[0018] 4) This utility model is applicable to punching operations of metal sheets of different thicknesses and sizes. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is an exploded view of the present invention.

[0021] Figure 3 This is a schematic diagram of a stamping base.

[0022] Figure 4 This is a schematic diagram of the lifting support.

[0023] Figure 5 This is a cross-sectional diagram of a replaceable punch.

[0024] Figure 6 This is a schematic diagram of the base support.

[0025] Figure 7 This is a partially enlarged schematic diagram of the base support.

[0026] The components include: base bracket 1, base 1-1, worktable 1-2, stamping cylinder mounting seat 1-3, punch mounting seat 1-4, cylinder rod support seat 1-5, lifting bracket support seat 1-6, limit ball 1-7, shaft seat 1-8, workstation switching cylinder 2, stamping cylinder 3, replaceable punch 4, punch 4-1, punch seat 4-2, spring 4-3, punch mounting seat 4-4, through groove 4-5, limit groove 4-6, lead screw motor 5, stamping seat 6, connecting block 6-1, slide 6-2, fixed seat 6-3, limit baffle 6-4, gasket 6-5, lifting bracket 7, motor seat 7-1, guide rail 7-2, lead screw seat 7-3, clearance groove 7-4, and gear 8. Detailed Implementation

[0027] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model. Example

[0028] like Figure 1 and Figure 2 As shown, a punching die with quick-change punch includes a base support 1, a station switching cylinder 2, a stamping cylinder 3, a replaceable punch 4, a lead screw motor 5, a stamping seat 6, a lifting bracket 7, and a gear 8.

[0029] like Figure 6 As shown, the base bracket 1 includes a base 1-1, a worktable 1-2, a stamping cylinder mounting seat 1-3, a punch mounting seat 1-4, a lifting bracket support seat 1-6, and a shaft seat 1-8;

[0030] The workbench 1-2 is arranged parallel to one end of the base 1-1. A stamping cylinder mounting seat 1-3 is provided on the workbench 1-2. A punch mounting seat 1-4 is provided on the workbench 1-2 in front of the stamping cylinder mounting seat 1-3. A lifting bracket support seat 1-6 is provided at the other end of the base 1-1. The area between the lifting bracket support seat 1-6 and the workbench 1-2 is the work area. A shaft seat 1-8 is provided on the base 1-1 below the work area.

[0031] like Figure 1 and Figure 2 As shown, the cylinder body of the stamping cylinder 3 is mounted on the stamping cylinder mounting base 1-3, and the cylinder rod of the stamping cylinder 3 extends and retracts in the direction toward the work area; the replaceable punch 4 is fixed to the punch mounting base 1-4 in a detachable manner.

[0032] like Figure 5 As shown, the replaceable punch 4 includes a punch 4-1, a punch seat 4-2, a spring 4-3, and a punch mounting seat 4-4;

[0033] The rear end of the punch 4-1 is connected to the punch seat 4-2. The punch mounting base 4-4 has a through groove 4-5 parallel to the worktable 1-2. The punch seat 4-2 moves the punch 4-1 in the through groove 4-5. The punch seat 4-2 has a limiting structure to prevent the punch seat 4-2 from coming out of the front end of the through groove 4-5. The rear end of the through groove 4-5 is used for the cylinder rod of the punching cylinder 3 to extend into. The through groove 4-5 also has a spring 4-3. One end of the spring 4-3 is connected to the punch seat 4-2, and the other end is connected to the inner wall of the rear end of the through groove 4-5.

[0034] In the initial state, spring 4-3 pulls punch seat 4-2, so that punch seat 4-2 and punch 4-1 are inside through groove 4-5; when the cylinder rod of stamping cylinder 3 extends into through groove 4-5, the cylinder rod pushes punch 4-1 out from the front end of through groove 4-5; after the cylinder rod returns to its original position, spring 4-3 pulls punch seat 4-2 and punch 4-1 back to their original positions.

[0035] like Figure 5 and Figure 7 As shown, the side wall of the punch mounting base 4-4 is provided with a limiting groove 4-6; the punch mounting base 1-4 is provided with a limiting protrusion for engaging in the limiting groove 4-6; a limiting ball 1-7 is also provided at the outer end of the limiting protrusion of the punch mounting base 1-4; when the punch seat 4-2 is installed on the punch mounting base 4-4, that is, after the limiting protrusion has completely passed through the limiting groove 4-6, the limiting ball 1-7 pops out to limit the punch seat 4-2 and prevent the punch seat 4-2 from shifting during the stamping process.

[0036] like Figure 4As shown, the lifting support 7 consists of a support structure and a base structure. The bottom of the support structure is connected to the base structure. The top of the support structure is a motor base 7-1. The lead screw motor 5 is fixed inside the motor base 7-1, and the shaft of the lead screw motor 5 is connected to the lead screw, which is vertically downward. A lead screw seat 7-3 is provided on the base structure of the lifting support 7, and the lower end of the lead screw extends into the lead screw seat 7-3.

[0037] like Figure 1 , Figure 2 and Figure 3 As shown, the stamping seat 6 is driven by a lead screw to move vertically; the stamping seat 6 includes a connecting block 6-1, a slide 6-2, a fixed seat 6-3, a limiting baffle 6-4, and a gasket 6-5; the slide 6-2 slides on the lead screw, and the front and rear ends of the slide 6-2 are mirror images of the connecting blocks 6-1, and each of the two connecting blocks 6-1 is connected to a fixed seat 6-3; both the fixed seat 6-3 and the connecting block 6-1 have a long groove in the center; several gaskets 6-5 and the outermost limiting baffle 6-4, which is used to limit the metal sheet, are fixed on both sides of the end face of the fixed seat 6-3 by bolts;

[0038] The slide block 2 is also provided with guide grooves on both sides, and a vertical guide rail 7-2 is provided in the lifting bracket 7. The guide rail 7-2 is embedded in the guide groove of the slide block 2, so that the slide block 2 slides along the guide rail 7-2.

[0039] A gear 8 is provided below the base structure of the lifting bracket 7; the workstation switching cylinder 2 is fixed on the base 1-1 of the base bracket 1, and the cylinder rod of the workstation switching cylinder 2 is connected to a single-sided rack, which meshes with the gear; the base 1-1 of the base bracket 1 is provided with several cylinder rod support seats 1-5 that support and guide the single-sided rack; the gear shaft of the gear 8 is inserted into the shaft seat 1-8.

[0040] The base structure of the lifting bracket 7 is provided with clearance grooves 7-4 on the front and rear sides to avoid the fixed seat 6-3; the front and rear ends of the base structure of the lifting bracket 7 are arc surfaces, and the front end of the worktable 1-2 is a smooth concave surface that can match the arc surfaces of the front and rear ends of the base structure of the lifting bracket 7.

[0041] How to use:

[0042] 1) Select a suitable replaceable punch 4 and fix it on the punch mounting base 1-4;

[0043] 2) Fix the metal sheet that needs to be punched onto the fixed seat 6-3 of the stamping seat 6. Select shims 6-5 of appropriate thickness and quantity according to the thickness of the metal sheet. Ensure that the punching position of the metal sheet on one of the fixed seats 6-3 of the stamping seat 6 is directly opposite the punch 4-1. Drive the stamping seat 6 to move vertically by the lead screw motor 5 to adjust the punching position of the metal sheet in the vertical direction.

[0044] 3) Start the stamping cylinder 3. The cylinder rod pushes the punch 4-1 out of the punch mounting seat 4-4. The punch 4-1 impacts the punching position of the metal sheet and leaves a punch before resetting. The long groove in the center of the fixed seat 6-3 and the connecting block 6-1 is used to avoid the punch 4-1 and prevent the punch 4-1 from impacting the fixed seat 6-3 or the connecting block 6-1 and causing damage.

[0045] 4) After completing the punching operation on one side of the fixed seat 6-3, the single-sided rack is moved by the station switching cylinder 2, and the gear 8 meshing with the single-sided rack rotates 180°, so that the fixed seat 6-3 on the other side is rotated to the front of the punch 4-1; then repeat steps 1) to 3) to complete the punching of the metal sheet on the other side of the fixed seat 6-3; in the above process, the lifting bracket support seat plays the role of assisting in supporting the lifting bracket;

[0046] 5) By continuously repeating the above process, metal sheet punching can be carried out efficiently and continuously. In addition, when the required punch size or shape changes, the entire replaceable punch 4 can be removed and replaced. The tip of the punch 4-1 of the replaceable punch 4 of different specifications is different in shape and size.

[0047] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A punch quick-change piercing die, characterized by: Includes base bracket, workstation switching cylinder, stamping cylinder, replaceable punch, stamping seat, lifting bracket and gears; The base support includes a base, a worktable, a stamping cylinder mounting seat, a punch mounting seat, a lifting bracket support seat, and a shaft seat. The workbench is arranged parallel to one end of the base. A stamping cylinder mounting seat is provided on the workbench, and a punch mounting seat is provided on the workbench in front of the stamping cylinder mounting seat. A lifting bracket support seat is provided at the other end of the base, and the area between the lifting bracket support seat and the workbench is the work station area. A shaft seat is provided on the base below the work area. The cylinder body of the stamping cylinder is mounted on the stamping cylinder mounting base, and the cylinder rod of the stamping cylinder extends and retracts in the direction toward the work area; the replaceable punch is fixed to the punch mounting base in a detachable manner. The replaceable punch includes a punch, a punch seat, a spring, and a punch mounting base. The rear end of the punch is connected to the punch seat. The punch mounting base has a through groove parallel to the worktable, and the punch seat moves with the punch within the through groove. The punch seat has a limiting structure to prevent the punch seat from dislodging from the front end of the through groove. The rear end of the through groove is for the cylinder rod of the stamping cylinder to extend into. A spring is also provided in the through groove, with one end connected to the punch seat and the other end connected to the inner wall of the rear end of the through groove. The lifting bracket is the result of driving the stamping base to move vertically. A gear is connected to the lower part of the lifting bracket, and the gear shaft is inserted into a shaft seat. The stamping base has two stamping stations, front and rear. The workstation switching cylinder is fixed on the base of the base bracket. The cylinder rod of the workstation switching cylinder is connected to a single-sided rack, and the single-sided rack meshes with a gear. The base of the base bracket is provided with several cylinder rod support seats that support and guide the single-sided rack.

2. The punch quick-change punching die according to claim 1, characterized in that: The side wall of the punch mounting base is provided with a limiting groove; the punch mounting base is provided with a limiting protrusion for engaging in the limiting groove; the outer end of the limiting protrusion of the punch mounting base is also provided with a limiting ball.

3. The quick-change punch die set of claim 1, wherein: It also includes a lead screw motor; the lifting bracket consists of a bracket structure and a base structure, with the bottom of the bracket structure connected to the base structure; the top of the bracket structure is a motor base, the lead screw motor is fixed inside the motor base, and the shaft of the lead screw motor is connected to the lead screw, which is vertically downward; a lead screw seat is provided on the base structure of the lifting bracket, and the lower end of the lead screw extends into the lead screw seat; the stamping seat includes a connecting block, a slide, a fixed seat, a limiting baffle, and a gasket; the slide slides on the lead screw, and the front and rear ends of the slide are mirror-mounted with connecting blocks, each of the two connecting blocks being connected to a fixed seat; both the fixed seat and the connecting block have a long groove in the center; several gaskets and the outermost limiting baffle are fixed to both sides of the end face of the fixed seat by bolts.

4. The quick-change punch die set of claim 3, wherein: The slide block is also provided with guide grooves on both sides, and a vertical guide rail is provided in the lifting bracket. The guide rail is embedded in the guide groove of the slide block, so that the slide block slides along the guide rail.

5. The quick-change punch die set of claim 3, wherein: The base structure of the lifting bracket is provided with clearance grooves on the front and rear sides for avoiding the fixed seat; the front and rear ends of the base structure of the lifting bracket are arc surfaces, and the front end of the worktable is a smooth concave surface that can match the arc surfaces of the front and rear ends of the base structure of the lifting bracket.

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