Positioning and clamping device for punching sheet metal part

Abstract

The utility model discloses a positioning and clamping device for punching a sheet metal part, relates to the technical field of clamping, and aims to solve the technical problem that the current U-shaped sheet metal part is inconvenient to fix at the center of a processing table when being clamped, the positioning and clamping device comprises a working table, and the center of the upper end face of the working table is fixedly connected with a placing seat through a supporting rod; sliding grooves are symmetrically formed in the two sides in the containing base, limiting assemblies are arranged in the sliding grooves, a sheet metal part body is placed on the upper end face of the containing base, each limiting assembly comprises a limiting rod fixedly connected to the side wall of the corresponding sliding groove, the surface of each limiting rod is sleeved with a spring, one end of each spring is fixedly fixed to the side wall of the corresponding sliding groove, and the other end of each spring is fixedly connected with a sliding rod. Limiting blocks are fixedly connected to the top ends of the sliding rods, and the opposite sides of the two limiting blocks are arranged to be inclined faces. The sheet metal part drilling device has the advantages that the position of a sheet metal part body is corrected, and the sheet metal part body is placed in the center of the placing seat to ensure the position accuracy during drilling.

Description

Technical Field

[0001] This utility model relates to the field of clamping technology, and more specifically, to a positioning clamping device for drilling holes in sheet metal parts. Background Technology

[0002] Sheet metal processing is a comprehensive cold working process for thin metal sheets, including shearing, punching, cutting, compound cutting, bending, welding, riveting, splicing, and forming. Its most significant characteristic is that the thickness of the same part is consistent. Products processed through sheet metal processing are called sheet metal parts. Sheet metal parts come in various special shapes. Among them, U-shaped sheet metal parts (U-shaped angle iron bracket fasteners used for connections in engine, transmission, and braking systems in the automotive industry) are difficult to accurately and reliably position due to the primarily manual operation of existing drilling equipment. Therefore, clamps are needed to hold the sheet metal parts.

[0003] However, existing fixtures are not convenient for fixing U-shaped sheet metal parts in the center of the processing table due to their special shape. The position of the U-shaped sheet metal parts needs to be manually checked, which is not only time-consuming and labor-intensive, but also affects production efficiency. In view of this, we propose a positioning and clamping device for drilling holes in sheet metal parts. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a positioning and clamping device for drilling sheet metal parts, so as to solve the technical problem that it is not convenient to fix U-shaped sheet metal parts at the center of the processing table when clamping them.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a positioning and clamping device for drilling holes in sheet metal parts, including a worktable, a placement seat fixedly connected to the center of the upper end face of the worktable by a support rod, a sliding groove is provided on both sides of the placement seat, a limit component is arranged in the sliding groove, and a sheet metal part body is placed on the upper end face of the placement seat.

[0006] The limiting assembly includes a limiting rod fixedly connected to the side wall of the slide groove. A spring is sleeved on the surface of the limiting rod. One end of the spring is fixed to the side wall of the slide groove, and the other end of the spring is fixedly connected to a sliding rod. A limiting block is fixedly connected to the top end of the sliding rod.

[0007] This invention calibrates the position of the sheet metal part and places it at the center of the mounting base, which can ensure the accuracy of the drilling position when the drilling machine drills holes in its surface.

[0008] Preferably, the two limiting blocks are arranged with an inclined surface on opposite sides, and the limiting blocks abut against both sides of the sheet metal body through the inclined surface.

[0009] Preferably, a hydraulic cylinder A is fixedly connected to the upper end face of the workbench, and a drilling assembly is fixedly connected to the telescopic end of the hydraulic cylinder A through the side wall of the workbench.

[0010] Preferably, the drilling assembly includes a limiting seat, the lower end face of which is engaged with the surface of the sheet metal body, and a hydraulic cylinder B is fixedly connected to the back of the limiting seat, with a connecting plate fixedly connected to the telescopic end of the hydraulic cylinder B.

[0011] Preferably, inverted L-shaped folding rods are fixedly connected to both sides of the connecting plate, and a diagonal rod is fixedly connected to the lower end face of the folding rod relative to the bend.

[0012] Preferably, the tail end of the folding rod is fixedly connected to a drilling machine adapted to the sheet metal body through the side wall of the limiting seat, and the limiting seat has placement grooves on both sides adapted to the inclined surface of the slant rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. By setting a limiting component, this utility model can guide the falling position of the sheet metal body by using the inclined surfaces on both sides of the two limiting blocks when the sheet metal body is placed. When the sheet metal body is pressed against the inclined surfaces of the limiting blocks, the spring is compressed, the position of the sheet metal body is corrected and placed in the center of the placement seat, and the drilling position can be ensured when the drilling machine drills holes in its surface.

[0015] 2. This utility model also includes a drilling assembly. When the hydraulic cylinder A drives the limit seat downward to fix the upper surface of the sheet metal body, the connection between the bending rod and the connecting plate allows multiple drilling machines to be connected. When the hydraulic cylinder B is stretched, the multiple drilling machines can simultaneously drill holes in the surface of the sheet metal body, enabling simultaneous drilling at different positions of the required hole size. This further improves the drilling efficiency of the sheet metal body and ensures the accuracy of the position during synchronous drilling. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of one usage state of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the punching assembly of this utility model;

[0018] Figure 3 This is a schematic diagram of the limiting component of this utility model;

[0019] Figure 4 This is a schematic diagram of the overall structure of the punching assembly of this utility model;

[0020] Figure 5 This is an exploded view of the structure of the punching component of this utility model.

[0021] Explanation of the labels in the diagram:

[0022] 1. Workbench; 2. Placement seat; 3. Limiting assembly; 301. Limiting rod; 302. Spring; 303. Slide rod; 304. Limiting block; 4. Hydraulic cylinder A; 5. Drilling assembly; 501. Limiting seat; 502. Hydraulic cylinder B; 503. Connecting plate; 504. Folding rod; 505. Diagonal rod; 506. Drilling machine; 507. Placement slot. Detailed Implementation

[0023] like Figures 1 to 5 As shown, the present invention relates to a positioning and clamping device for drilling sheet metal parts, including a workbench 1, a placement seat 2 fixedly connected to the center of the upper end face of the workbench 1 by a support rod, a sliding groove is provided on both sides of the placement seat 2, a limit component 3 is arranged in the sliding groove, and a sheet metal part body is placed on the upper end face of the placement seat 2.

[0024] like Figure 1 , Figure 2 , Figure 3 As shown, the limiting component 3 includes a limiting rod 301 fixedly connected to the side wall of the slide groove. A spring 302 is sleeved on the surface of the limiting rod 301. One end of the spring 302 is fixed to the side wall of the slide groove, and the other end of the spring 302 is fixedly connected to a slide rod 303. A limiting block 304 is fixedly connected to the top of the slide rod 303. The opposite side of the two limiting blocks 304 is arranged as an inclined surface. The limiting blocks 304 abut against both sides of the sheet metal body through the inclined surface. By setting the limiting component 3, when the sheet metal body is placed, the inclined surfaces on both sides of the two limiting blocks 304 can guide the falling position of the sheet metal body. When the sheet metal body is pressed against the inclined surface of the limiting blocks 304, the spring 302 is compressed, the position of the sheet metal body is checked and placed at the center of the placement seat 2, and the drilling machine 506 can ensure the accuracy of the drilling position when drilling holes in its surface.

[0025] In embodiments of this utility model, such as Figure 1 , Figure 2 , Figure 4 , Figure 5As shown, a hydraulic cylinder A4 is fixedly connected to the upper surface of the workbench 1. A drilling assembly 5 is fixedly connected to the telescopic end of the hydraulic cylinder A4 through the side wall of the workbench 1. The drilling assembly 5 includes a limiting seat 501. The lower end of the limiting seat 501 is engaged with the surface of the sheet metal part. A hydraulic cylinder B502 is fixedly connected to the back of the limiting seat 501. A connecting plate 503 is fixedly connected to the telescopic end of the hydraulic cylinder B502. Inverted L-shaped bending rods 504 are fixedly connected to both sides of the connecting plate 503. A diagonal rod 505 is fixedly connected to the lower end of the bending rod 504 relative to the bend. A drilling machine 506 adapted to the sheet metal part is fixedly connected to the tail end of the bending rod 504 through the side wall of the limiting seat 501. Figure 4 As shown, the two front drilling heads of the drilling machine 506 are used to drill small holes in the sheet metal body, and the two rear drilling heads are used to drill large holes in the sheet metal body. The limiting seat 501 has placement slots 507 on both sides that are adapted to the inclined surface of the inclined rod 505. By setting the drilling assembly 5, when the hydraulic cylinder A4 drives the limiting seat 501 downward to fix the upper surface of the sheet metal body, multiple sets of drilling machines 506 can be connected through the connection between the bending rod 504 and the connecting plate 503. When the hydraulic cylinder B502 is stretched, multiple sets of drilling machines 506 can drill holes in the surface of the sheet metal body simultaneously, so that different positions of the required hole size of the sheet metal body can be drilled simultaneously, which can further improve the drilling efficiency of the sheet metal body and ensure the accuracy of the position during synchronous drilling.

[0026] Working principle: This embodiment provides a positioning and clamping device for drilling holes in sheet metal parts. In use, the sheet metal part body is first placed on the upper surface of the placement seat 2. The two sides of the sheet metal part body first contact the inclined surface of the limiting block 304. When the sheet metal part body is placed downward, the inclined surface of the two sides guides the position of the sheet metal part body to the center of the placement seat 2. Then, through the stretching movement of the hydraulic cylinder A4, the drilling component 5 is moved downward, and the limiting seat 501 contacts and fixes the surface of the sheet metal part body. At this time, the drilling machine 506 is located on the side of the sheet metal part body. When the hydraulic cylinder B502 stretches the connecting plate 503, the drilling machine 506 can simultaneously drill holes of different sizes at different positions of the sheet metal part body.

[0027] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A positioning and clamping device for drilling holes in sheet metal parts, characterized in that, The workbench (1) is fixedly connected to the center of the upper surface of the workbench (1) by a support rod. The placement seat (2) has symmetrical grooves on both sides inside the placement seat (2). Limiting components (3) are arranged in the grooves. The upper surface of the placement seat (2) is covered with a sheet metal body. The limiting component (3) includes a limiting rod (301) fixedly connected to the side wall of the slide groove. A spring (302) is sleeved on the surface of the limiting rod (301). One end of the spring (302) is fixed to the side wall of the slide groove, and the other end of the spring (302) is fixedly connected to a slide rod (303). A limiting block (304) is fixedly connected to the top end of the slide rod (303). A hydraulic cylinder A (4) is fixedly connected to the upper end face of the workbench (1), and a drilling assembly (5) is fixedly connected to the telescopic end of the hydraulic cylinder A (4) through the side wall of the workbench (1). The drilling assembly (5) includes a limiting seat (501), the lower end face of the limiting seat (501) is engaged with the surface of the sheet metal body, and a hydraulic cylinder B (502) is fixedly connected to the back of the limiting seat (501). A connecting plate (503) is fixedly connected through the telescopic end of the hydraulic cylinder B (502).

2. The positioning and clamping device for drilling holes in sheet metal parts according to claim 1, characterized in that, The two limiting blocks (304) are arranged with an inclined surface on opposite sides, and the limiting blocks (304) abut against both sides of the sheet metal body through the inclined surface.

3. A positioning and clamping device for drilling holes in sheet metal parts according to claim 2, characterized in that, The connecting plate (503) is fixedly connected to two sides of an inverted L-shaped folding rod (504), and the lower end face of the folding rod (504) is fixedly connected to a diagonal rod (505) relative to the bend.

4. A positioning and clamping device for drilling holes in sheet metal parts according to claim 3, characterized in that, The tail end of the folding rod (504) is fixedly connected to a drilling machine (506) adapted to the sheet metal body through the side wall of the limiting seat (501). The limiting seat (501) has placement slots (507) on both sides adapted to the inclined surface of the inclined rod (505).

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