Edge trimmer for hardware stamping

Abstract

The utility model discloses an edge trimmer for hardware stamping, which relates to the technical field of stamping part trimming, and mainly comprises a workbench, a rack is mounted on the workbench, a base is mounted on a bearing on the workbench, an edge trimming mechanism is mounted on the workbench, the edge trimming mechanism is provided with a cutter and a collapsible mechanism, the collapsible mechanism is mounted on the base, and the cutter is mounted on the base. The expansion and contraction mechanism comprises a sleeve column, at least three sets of abutting blocks and a driving disc are installed in the sleeve column in a sliding mode, the driving disc is located between the abutting blocks, the driving disc extends to form an extending end connected with the abutting blocks in a sliding mode, a pressing part is arranged, the pressing part is connected with the driving disc, the pressing mechanism is located above the pressing part, and the pressing mechanism is provided with a pressing column. The driving disc is suitable for moving up and down in the sleeve column and driving the abutting block to expand or contract so as to limit and fix the hardware stamping part. According to the edge trimmer for hardware stamping, the problem that a fastening block needs to be switched when fixing hardware stamping parts of different sizes is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of stamping part trimming, in particular to a trimming machine for metal stamping. Background Art

[0002] Metal stamping refers to stamping metal materials to make them plastically deformed and obtain metal stamping parts of the required shape. After stamping, the metal stamping parts need to be trimmed to remove the punching and shearing seams of the stamping parts and prevent burrs.

[0003] For example, the patent with publication number CN109128357B specifically discloses an automatic trimming machine, which includes a base and a rotating device installed on the base, the rotating device has a driving shaft and a fastening block installed on the driving shaft, and a pressing cylinder is arranged on the top of the fastening block, and a trimming knife device is arranged on one side of the rotating device;

[0004] In the above-mentioned patent disclosure, the trimming machine mainly sleeves the metal stamping part on the fastening block, and with the cooperation of the clamping cylinder, the metal stamping part is pressed and fixed, and the fastening block is driven to rotate under the action of an external drive, and the metal stamping part is driven to rotate, and the rear trimming knife device slowly approaches the metal stamping part;

[0005] However, in the actual production of metal stamping parts, in order to meet different needs, the sizes of metal stamping parts are not the same. When the above-mentioned trimming machine performs trimming operations on metal stamping parts of different sizes, since the fastening block is installed on the drive shaft and the fastening block is fixed, metal stamping parts of different sizes cannot be placed on the fastening block. At this time, the fastening block needs to be replaced to achieve the stamping of metal stamping parts of different sizes. However, when switching the fastening block, the trimming machine needs to be stopped. This method is inconvenient and affects the trimming efficiency of the metal stamping parts. Therefore, it is necessary to provide a trimming machine for metal stamping to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a trimming machine for metal stamping, which solves the problem that the fastening blocks need to be switched to fix metal stamping parts of different sizes.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a trimming machine for metal stamping, comprising a workbench, a frame is installed on the workbench, a base is installed on the bearing of the workbench, a trimming mechanism is installed on the workbench, the trimming mechanism has a cutting knife, an expansion and contraction mechanism, the expansion and contraction mechanism is installed on the base, the expansion and contraction mechanism comprises a sleeve column, at least three groups of resistance blocks are slidably installed in the sleeve column, a driving disk, the driving disk is located between the resistance blocks, the driving disk extends with an extended end slidably connected to the resistance block, a pressing part, the pressing part is connected to the driving disk, a holding mechanism, the holding mechanism is located above the pressing part, the holding mechanism has a pressing column, the driving disk is suitable for moving up and down in the sleeve column, and driving the resistance block to expand or contract, so as to limit and fix the metal stamping parts.

[0008] Furthermore, an oblique groove is provided on the surface of the abutment block inside the sleeve column, and the protruding end is matched with the oblique groove.

[0009] Furthermore, a cavity is provided in the middle section of the sleeve to form at least three groups of support columns, and a groove is provided on the sleeve at the support column, and the abutment block is located in the groove.

[0010] Furthermore, the pressing portion is composed of a sliding rod that penetrates and slides on the sleeve column, and a top plate fixed to the top of the sliding rod, and the bottom end of the sliding rod is fixedly connected to the driving disk.

[0011] Furthermore, a spring is connected between the driving disk and the inner bottom surface of the sleeve column.

[0012] Furthermore, the pressing mechanism is installed on the frame, and the pressing mechanism includes a top frame fixed on the frame, and a hanger slidably connected to the top frame, and the pressure column bearing is installed at the bottom of the hanger.

[0013] Furthermore, the trimming mechanism includes a base frame slidably mounted on the workbench, and a movable frame slidably connected to the base frame, and the cutter bearing is mounted on the movable frame.

[0014] Compared with the prior art, the beneficial effect of the utility model is that the pressure column presses against the top plate, so that the top plate approaches the sleeve column, and indirectly drives the driving disk to move synchronously, and under the cooperation of the extended end of the driving disk and the resistance block, the resistance block expands toward the outside of the sleeve column, and at the same time, under the action of the spring, through the cooperation of the driving disk, the resistance block is suitable for contracting toward the inside of the sleeve column, thereby achieving the purpose of adaptive position fixation of hardware stamping parts of different calibers, and solving the problem that the fastening block needs to be switched to fix hardware stamping parts of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is an overall schematic diagram of a metal stamping trimming machine in this application;

[0016] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0017] Figure 3 for Figure 1 The enlarged schematic diagram of point B in the middle;

[0018] Figure 4 for Figure 3 A half-section diagram of the expansion and contraction mechanism;

[0019] Among them, the reference numerals in the figure are:

[0020] 1. Workbench; 11. Frame; 13. Base; 2. Pressing mechanism; 21. First cylinder; 22. Hanger; 23. Pressing column; 24. Top frame; 3. Trimming mechanism; 31. Base frame; 32. Moving frame; 34. Cutter; 4. Expansion and contraction mechanism; 41. Sleeve column; 411. Support column; 42. Pressing part; 421. Top plate; 422. Sliding rod; 43. Abutment block; 431. Inclined groove; 44. Spring; 45. Driving disk; 451. Extending end. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1 and Figure 3-Figure 4 As shown, the present application provides a trimming machine for metal stamping, comprising a workbench 1, and a frame 11 mounted on the workbench 1, and a driving unit is mounted on the workbench 1, the driving unit comprises a motor (not shown in the figure) mounted in the workbench 1, and a base 13 connected to the output end of the motor, and the base 13 is mounted on the workbench 1 with a bearing;

[0023] And an expansion and contraction mechanism 4 is installed on the base 13, and the expansion and contraction mechanism 4 is used to clamp and fix the metal stamping parts. The expansion and contraction mechanism 4 is directly below the frame 11, and the expansion and contraction mechanism 4 includes a sleeve column 41 fixedly connected to the base 13, and a cavity is opened in the middle section of the sleeve column 41 to form a support column 411. The support column 411 is provided with at least three groups, and a groove (not marked in the figure) is opened on the sleeve column 41 at the support column 411. A resistance block 43 is slidably installed in the groove on the side wall of the sleeve column 41, and the resistance block 43 is suitable for sliding into or out of the groove and resisting the inner wall of the metal stamping part;

[0024] Meanwhile, a driving disk 45 is arranged between the abutment blocks 43, and an extension end 451 is extended from the driving disk 45, and the abutment block 43 is slidably connected with the extension end 451 of the driving disk 45, wherein an oblique groove 431 is provided on the surface of the abutment block 43 in the sleeve column 41, and the extension end 451 is adapted to the oblique groove 431, thereby forming a wedge-shaped structure;

[0025] A spring 44 is connected between the driving disk 45 and the bottom surface of the cavity of the sleeve column 41. When the driving disk 45 is acted upon by an external force, the driving disk 45 moves toward the bottom of the sleeve column 41 and squeezes the spring 44, causing the spring 44 to contract. At the same time, under the cooperation of the extended end 451 and the inclined groove 431, the resistance block 43 is driven to extend toward the outside of the sleeve column 41. At this time, the resistance block 43 is in an expanded state. When the external force on the driving disk 45 disappears, the driving disk 45 is driven to move toward the top of the sleeve column 41 under the action of the spring 44, and under the cooperation of the extended end 451 and the inclined groove 431, the resistance block 43 is driven to contract toward the inside of the sleeve column 41. At this time, the resistance block 43 is in a contracted state (initial state).

[0026] At the same time, a pressing portion 42 is provided on the top of the sleeve column 41, and the pressing portion 42 is composed of a slide rod 422 that slides through the sleeve column 41, and a top plate 421 fixed to the top of the slide rod 422, wherein the bottom end of the slide rod 422 is fixedly connected to the driving disk 45, and the top plate 421 is used to contact the inner wall of the metal stamping part;

[0027] Continue to refer Figure 1 A pressing mechanism 2 is installed on the frame 11, and the pressing mechanism 2 is used to press the metal stamping parts. The pressing mechanism 2 includes a top frame 24 fixedly installed on the frame 11, and a hanger 22 slidably connected to the top frame 24, and a pressing column 23 is installed on the bottom bearing of the hanger 22. The pressing column 23 is suitable for rotation, and the hanger 22 is suitable for sliding up and down along the top frame 24 under external drive, and drives the pressing column 23 to approach or move away from the top plate 421;

[0028] A first cylinder 21 is fixed on the top frame 24, and the output end of the first cylinder 21 is connected to the hanger 22, and the first cylinder 21 is suitable for driving the hanger 22 to move up and down, and indirectly drives the pressure column 23 to move synchronously;

[0029] When a metal stamping part is placed on the top plate 421, the first cylinder 21 drives the pressure column 23 at the bottom of the hanger 22 to approach the top plate 421, and the pressure column 23 squeezes the top plate 421, so that the top plate 421 approaches the sleeve column 41, and under the action of the driving disk 45, the resistance block 43 enters an expanded state, so that the resistance block 43 squeezes the inner wall of the metal stamping part, thereby fixing the position of the metal stamping part, and achieving the purpose of adaptively fixing the position of metal stamping parts of different calibers;

[0030] like Figure 2 As shown, a trimming mechanism 3 is provided on the side of the base 13, and the trimming mechanism 3 is installed on the workbench 1. The trimming mechanism 3 includes a base frame 31 slidably installed on the workbench 1, and a moving frame 32 slidably connected to the base frame 31, wherein the moving frame 32 is suitable for moving up and down on the base frame 31, and the base frame 31 is suitable for approaching or moving away from the expansion and contraction mechanism 4, and a cutter 34 is installed on a bearing at the end of the moving frame 32, and the cutter 34 is used to cut the edge of the metal stamping part, and the cutter 34 is suitable for approaching or moving away from the expansion and contraction mechanism 4. In the present application, the base frame 31 and the moving frame 32 are driven by a cylinder;

[0031] After the position of the metal stamping part is fixed, the motor drives the base 13 to rotate, and with the cooperation of the pressure column 23, the base 13 drives the metal stamping part on the expansion and contraction mechanism 4 to rotate, and then the base frame 31 approaches the direction of the metal stamping part, and drives the cutter 34 on the moving frame 32 to approach the edge of the metal stamping part, through the rotation of the metal stamping part and the resistance of the cutter 34 to the metal stamping part, the edge trimming operation of the metal stamping part is realized;

[0032] To summarize, the pressure column 23 presses against the top plate 421, so that the top plate 421 approaches the sleeve column 41, and indirectly drives the driving disk 45 to move synchronously. With the cooperation of the protruding end 451 of the driving disk 45 and the resistance block 43, the resistance block 43 expands toward the outside of the sleeve column 41. At the same time, under the action of the spring 44, through the cooperation of the driving disk 45, the resistance block 43 is suitable for contracting toward the inside of the sleeve column 41, thereby achieving the purpose of adaptive position fixation of metal stampings of different calibers, and solving the problem of the need to switch the fastening blocks to fix metal stampings of different sizes.

[0033] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A trimming machine for metal stamping, comprising: A workbench (1), a frame (11) is mounted on the workbench (1), a base (13) is mounted on a bearing on the workbench (1), and a trimming mechanism (3) is mounted on the workbench (1), the trimming mechanism (3) having a cutter (34); An expansion and contraction mechanism (4), which is mounted on the base (13), and is characterized in that: the expansion and contraction mechanism (4) comprises: A sleeve column (41), wherein at least three groups of abutment blocks (43) are slidably mounted in the sleeve column (41); A driving disk (45), the driving disk (45) being located between the abutment blocks (43), the driving disk (45) extending with a protruding end (451) slidably connected to the abutment blocks (43); A pressing portion (42), the pressing portion (42) being connected to the driving disk (45); A pressing mechanism (2), the pressing mechanism (2) being located above the pressing portion (42), the pressing mechanism (2) having a pressing column (23); Wherein: the driving disk (45) is suitable for moving up and down in the sleeve column (41), and driving the resistance block (43) to expand or contract, so as to limit and fix the metal stamping part.

2. The metal stamping trimming machine according to claim 1, characterized in that: An oblique groove (431) is provided on the surface of the abutment block (43) located inside the sleeve column (41), and the protruding end (451) is adapted to fit the oblique groove (431).

3. The metal stamping trimming machine according to claim 2, characterized in that: The middle section of the sleeve column (41) is provided with a cavity to form at least three groups of support columns (411), and a groove is provided on the sleeve column (41) at the support column (411), and the abutment block (43) is located in the groove.

4. The metal stamping trimming machine according to claim 3, characterized in that: The pressing portion (42) is composed of a sliding rod (422) that penetrates and slides on the sleeve column (41), and a top plate (421) fixed to the top of the sliding rod (422), and the bottom end of the sliding rod (422) is fixedly connected to the driving disk (45).

5. The metal stamping trimming machine according to claim 4, characterized in that: A spring (44) is connected between the driving disk (45) and the inner bottom surface of the sleeve column (41).

6. The metal stamping trimming machine according to claim 1, characterized in that: The pressing mechanism (2) is installed on the frame (11), and the pressing mechanism (2) comprises a top frame (24) fixed on the frame (11), and a hanger (22) slidably connected to the top frame (24), and the bearing of the pressing column (23) is installed at the bottom of the hanger (22).

7. The metal stamping trimming machine according to claim 6, characterized in that: The trimming mechanism (3) comprises a base frame (31) slidably mounted on the workbench (1), and a movable frame (32) slidably connected to the base frame (31), and the cutting knife (34) is bearing-mounted on the movable frame (32).

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