Sheet metal bridge bending and positioning device

Abstract

The utility model discloses a kind of sheet metal bridge bending positioning device, belong to sheet metal processing equipment technical field.The device includes bending machine shell and adjustable front support mechanism, the mechanism is driven screw rod by rotating handlebar, make threaded slide block drive and support rod connection sliding plate move, to adjust the telescopic distance of support rod;Positioning mechanism is slidably arranged on support rod, and the positioning mechanism includes locating slide block, press plate and internal locking assembly;Press locating slide block and press plate, the rack in the locking assembly and the rack in the inner wall of support rod can be controlled to realize separation or engagement, to complete quick positioning and locking.The utility model solves the problem of tedious adjustment, low positioning accuracy of prior art, realizes the quick and accurate adjustment of support and positioning, with the beneficial effects of simple operation, locking reliable, high production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal processing equipment technology, and in particular to a sheet metal cable tray bending and positioning device. Background Technology

[0002] Sheet metal bending machines are indispensable key equipment in the sheet metal processing industry, used to bend metal sheets into shape at predetermined angles. When processing large or heavy sheet metal workpieces, such as cable trays, a front support device is usually installed in front of the bending machine to support the workpiece and prevent it from sagging or tilting due to gravity, thereby ensuring bending accuracy.

[0003] Most existing front-mounted material support devices have a relatively simple structure, typically consisting of a manually movable support arm. When processing sheet metal parts of different widths or requiring bending at different locations, operators must manually loosen the fixing bolts of the support arm, move it to its approximate position, and then retighten it. Similarly, the positioning blocks on the support arm also require manual adjustment by loosening screws. The entire adjustment process relies entirely on the operator's experience and manual measurement, which is not only cumbersome and time-consuming but also makes it difficult to guarantee positioning accuracy.

[0004] In mass production, the drawbacks of this manual adjustment method are particularly prominent. Repeated measurement and tightening operations significantly reduce production efficiency, and due to human error, it is difficult to ensure the consistency of the bending position of each product, leading to a lower product qualification rate. In addition, the bolt-locking structure is prone to loosening under long-term equipment vibration, further affecting the stability and reliability of positioning, and failing to meet the requirements of modern production for high efficiency and high precision.

[0005] Therefore, this utility model proposes a sheet metal cable tray bending and positioning device to overcome the shortcomings of the prior art. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a sheet metal cable tray bending and positioning device, which aims to improve the problems of cumbersome and laborious support and positioning adjustment operations, low positioning accuracy and heavy reliance on manual labor, and low production efficiency in the existing sheet metal cable tray bending and positioning devices.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a sheet metal cable tray bending and positioning device, comprising: a bending machine housing, an upper die, a lower die; and an adjustable front support mechanism disposed on one side of the bending machine housing.

[0008] The adjustable front support mechanism includes a support rod, on which a positioning mechanism is slidably connected. The positioning mechanism includes a positioning slider, a pressing plate, and a locking assembly disposed inside the support rod. The locking assembly includes locking teeth connected to the positioning slider and the pressing plate, and a rack fixed to the inner wall of the support rod and engaging with the locking teeth.

[0009] Furthermore, the adjustable front support mechanism also includes a sliding plate, a threaded slider, a bolt, a threaded rod, and a throttle handle fixedly connected to the support rod. The sliding plate is slidably connected to the outside of the bending machine housing, and the threaded slider is slidably connected to the inside of the bending machine housing. A guide groove is provided on the side wall of the bending machine housing, and the bolt passes through the guide groove and fixes the sliding plate and the threaded slider together. The threaded rod is rotatably connected to the inside of the bending machine housing, and the threaded rod is threadedly connected to the threaded slider. The throttle handle is fixedly connected to the end of the threaded rod that extends out of the bending machine housing.

[0010] Preferably, the locking assembly further includes a spring fixing plate and a locking spring. The spring fixing plate is fixedly connected to one end of the positioning slider located inside the support rod and the other end of the pressing plate located inside the support rod, respectively. The locking spring is fixedly connected between the spring fixing plates.

[0011] Preferably, the locking teeth are fixed to the top and bottom of the spring fixing plate, and the rack is fixed to the inner top wall and inner bottom wall of the support rod.

[0012] Preferably, the top of the support rod is provided with a scale groove.

[0013] Preferably, it also includes a top bracket, which is fixedly connected to the top of the bending machine housing, and the upper die is slidably connected inside the top bracket.

[0014] Preferably, it also includes a hydraulic rod, which connects the bending machine housing and the upper die.

[0015] Preferably, a table is also fixedly connected to the top of the bending machine housing.

[0016] Preferably, the connection between the bolt and the sliding plate and the threaded slider is a detachable fixed connection.

[0017] This utility model has the following beneficial effects: 1. In this utility model, by first setting an adjustable front support mechanism consisting of a throttle, a threaded rod, a threaded slider and a sliding plate, the problem of the material support device in the prior art requiring manual movement and adjustment, being cumbersome and laborious, and having low positioning accuracy is solved. This achieves the technical effect of being able to quickly and labor-savingly and accurately adjust the support distance to adapt to the processing needs of sheet metal parts of different widths.

[0018] 2. In this utility model, a positioning mechanism that can slide on the support rod and be unlocked by pressing is provided. The mechanism has a locking tooth and a rack inside, and uses a spring to achieve normal locking. This solves the problem that the positioning block in the prior art relies on screws for fastening, which is inconvenient to adjust and easy to loosen, resulting in inaccurate positioning. It achieves the technical effect of fast positioning adjustment, simple operation and stable and reliable locking. Attached Figure Description

[0019] Figure 1 This is a perspective view of a sheet metal cable tray bending and positioning device proposed in this utility model; Figure 2 This is a schematic diagram of the threaded rod of a sheet metal cable tray bending and positioning device proposed in this utility model; Figure 3 for Figure 1 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of a spring in a sheet metal cable tray bending and positioning device proposed in this utility model; Figure 5 This is a schematic diagram of the clamping teeth of a sheet metal cable tray bending and positioning device proposed in this utility model.

[0020] Legend: 1. Bending machine housing; 2. Top support; 3. Upper die; 4. Lower die; 5. Table; 6. Adjustable front support mechanism; 601. Support rod; 602. Threaded slider; 603. Bolt; 604. Sliding plate; 605. Guide groove; 606. Threaded rod; 607. Throttle; 7. Positioning mechanism; 701. Positioning slider; 702. Scale groove; 703. Press plate; 704. Rack; 705. Clamping tooth; 706. Clamping spring; 707. Spring fixing plate; 8. Hydraulic rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figures 1-5 The present invention provides an embodiment of a sheet metal cable tray bending and positioning device, which aims to solve the problems of low sheet metal bending and positioning accuracy and inability to quickly adapt to different sizes of sheet metal in the prior art.

[0023] The sheet metal cable tray bending and positioning device includes a bending machine housing 1. A top support 2, a lower die 4, and a table 5 are fixedly connected to the top of the bending machine housing 1. An adjustable front support mechanism 6 is installed on one side of the bending machine housing 1. An upper die 3 is slidably connected inside the top support 2. One end of a hydraulic rod 8 is connected to the bending machine housing 1, and the other end is connected to the upper die 3. It is used to drive the upper die 3 to rise and fall to cooperate with the lower die 4 to complete the bending action. The adjustable front support mechanism 6 is used to provide support for sheet metal parts of different sizes. The adjustable front support mechanism 6 includes a sliding plate 604 fixedly connected to the support rod 601, a threaded slider 602, a bolt 603, a threaded rod 606, and a throttle 607. The sliding plate 604 is slidably connected to the outside of the bending machine housing 1, and the threaded slider 602 is slidably connected to the inside of the bending machine housing 1. A guide groove 605 is provided on the side wall of the bending machine housing 1, and the bolt 603 passes through the guide groove 605 to fix the sliding plate 604 and the threaded slider 602. This internal and external linkage structure ensures the smooth movement of the support rod 601. The threaded rod 606 is rotatably connected to the inside of the bending machine housing 1, and the threaded rod 606 is threadedly connected to the inside of the threaded slider 602. The throttle 607 is fixedly connected to the end of the threaded rod 606 that extends out of the bending machine housing 1. When the throttle 607 is turned, the throttle 607 drives the threaded rod 606 to rotate synchronously. Due to the threaded transmission relationship, the rotating threaded rod 606 drives the threaded slider 602 to move linearly along the inner side of the bending machine housing 1. The threaded slider 602 drives the sliding plate 604 and the support rod 601 fixed on the sliding plate 604 to move synchronously through the bolt 603, thereby realizing the precise adjustment of the extension distance of the support rod 601. The bolt 603 detachably fixes the sliding plate 604 and the threaded slider 602 for easy maintenance or disassembly. A positioning mechanism 7 is slidably connected on the support rod 601. The positioning mechanism 7 is used to accurately position the sheet metal parts placed on the support rod 601 in the length direction.

[0024] To achieve reliable automatic locking and convenient manual unlocking, the locking assembly includes a spring fixing plate 707 and a locking spring 706. The spring fixing plate 707 is fixedly connected to one end of the positioning slider 701 located inside the support rod 601 and the other end of the pressing plate 703 located inside the support rod 601. The locking spring 706 is fixedly connected between the spring fixing plates 707.

[0025] The locking teeth 705 are fixed to the top and bottom of the spring fixing plate 707 respectively, while the rack 704 is fixed to the inner top and bottom walls of the hollow structure of the support rod 601, forming a double-point meshing.

[0026] To improve the intuitiveness and accuracy of positioning adjustment, a scale groove 702 is provided on the top of the support rod 601. When the positioning slider 701 slides, it covers the scale groove 702. The operator can accurately position the slider by aligning the edge of the positioning slider 701 with the corresponding scale of the scale groove 702.

[0027] To ensure the smoothness and precision of the upper die 3 during the bending process, the device also includes a top support 2, which is fixedly connected to the top of the bending machine housing 1, and the upper die 3 is slidably connected inside the top support 2. The device also includes a hydraulic rod 8, one end of which is connected to the bending machine housing 1, and the other end is connected to the upper die 3.

[0028] In order to provide a stable initial placement platform for the sheet metal parts to be processed, a table 5 is also fixedly connected to the top of the bending machine housing 1.

[0029] To facilitate the installation, maintenance, or replacement of the adjustable front support mechanism 6, the bolts 603 used to connect the sliding plate 604 and the threaded slider 602 are detachably fixed.

[0030] Working principle: The top support 2 is fixedly connected to the top of the bending machine housing 1. The upper die 3 is slidably connected inside the top support 2. The upper die 3 is installed on one side of the bending machine housing 1 through the hydraulic rod 8. The lower die 4 and the table 5 are fixedly connected to the top of the bending machine housing 1. The sheet metal part is pushed to the lower die 4 on the top of the table 5. The hydraulic rod 8 drives the upper die 3 to descend and cooperate with the lower die 4 to complete the bending. The adjustable front support mechanism 6 is adjustablely installed on one side of the bending machine housing 1 for supporting sheet metal parts of different sizes. The positioning mechanism 7 slides on the outer wall of the adjustable front support mechanism 6 for positioning. The sliding plate 604 slides on the outside of the bending machine housing 1, and the threaded slider 602 slides on the inside of the bending machine housing 1. The sliding plate 604 and the threaded slider 602 are connected by bolts 603. The bolts 603 are slidably connected in the guide groove 605 opened on one side of the bending machine housing 1. The support rod 601 is fixedly connected to one side of the sliding plate 604 to support the sheet metal parts. The threaded slider 602 has a threaded rod 606 internally connected. The threaded rod 606 is rotatably connected inside the bending machine housing 1 and has one end extending through the bending machine housing 1 to the outside and fixedly connected to the handle 607. By rotating the handle 607, the spacing of the support rod 601 can be adjusted to accommodate sheet metal parts of different sizes. When the support rod 601 is not needed, it can be removed by bolts 603. The top of the support rod 601 has a scale groove 702. The positioning slider 701 is slidably connected to the top of the support rod 601 to cooperate with the scale groove 702 to position the sheet metal part. The push plate 703 is slidably connected to the bottom of the support rod 601. The positioning slider 701 and the push plate 703 are both fixed with spring fixing plates 707 at one end inside the support rod 601. A locking spring 706 is fixed between the two spring fixing plates 707. The reaction force of the locking spring 706 pushes the spring fixing plates 707 to both ends, so that the locking teeth 705 fixed at the top and bottom of the two spring fixing plates 707 respectively engage with the rack 704 fixed to the inner wall of the support rod 601 to achieve fixation. When moving, simply press the positioning slider 701 and the push plate 703 to unlock.

Claims

1. A sheet metal cable tray bending and positioning device, comprising a bending machine housing (1), and an upper die (3), a lower die (4), and an adjustable front support mechanism (6) mounted on the bending machine housing (1); the adjustable front support mechanism (6) includes a support rod (601), and the support rod (601) is slidably connected to a positioning mechanism (7). Its features are: The positioning mechanism (7) includes a positioning slider (701) that can slide on the top of the support rod (601), a push plate (703) that can slide on the bottom of the support rod (601), and a locking assembly disposed inside the support rod (601); the locking assembly includes a locking tooth (705) connected to the positioning slider (701) and the push plate (703), and a rack (704) fixed to the inner wall of the support rod (601). The locking tooth (705) and the rack (704) engage with each other in normal conditions to lock the positioning slider (701); The adjustable front support mechanism (6) also includes a sliding plate (604), a threaded slider (602), a bolt (603), a threaded rod (606), and a throttle (607) that are fixedly connected to the support rod (601). The sliding plate (604) is slidably connected to the outside of the bending machine housing (1), and the threaded slider (602) is slidably connected to the inside of the bending machine housing (1). The sliding plate (604) and the threaded slider (602) are fixedly connected by the bolt (603) passing through the guide groove (605) of the bending machine housing (1). The threaded rod (606) is rotatably connected inside the bending machine housing (1) and threadedly connected to the threaded slider (602). The throttle (607) is fixedly connected to one end of the threaded rod (606) that extends out of the bending machine housing (1).

2. The sheet metal cable tray bending and positioning device according to claim 1, characterized in that, The locking assembly also includes a spring fixing plate (707) and a locking spring (706). The spring fixing plate (707) is fixedly connected to one end of the positioning slider (701) located inside the support rod (601), and the spring fixing plate (707) is fixedly connected to one end of the pressing plate (703) located inside the support rod (601); The engaging spring (706) is fixedly connected between the spring fixing plates (707) and applies elastic force to engage the engaging teeth (705) with the rack (704).

3. The sheet metal cable tray bending and positioning device according to claim 2, characterized in that, The locking teeth (705) are fixed to the top and bottom of the spring fixing plate (707) respectively; the rack (704) is fixed to the inner top wall and inner bottom wall of the hollow structure of the support rod (601).

4. The sheet metal cable tray bending and positioning device according to claim 1, characterized in that, The top of the support rod (601) is provided with a scale groove (702), and the positioning slider (701) slides over the scale groove (702).

5. The sheet metal cable tray bending and positioning device according to claim 1, characterized in that, It also includes a top bracket (2), which is fixedly connected to the top of the bending machine housing (1), and the upper die (3) is slidably connected inside the top bracket (2).

6. The sheet metal cable tray bending and positioning device according to claim 1, characterized in that, It also includes a hydraulic rod (8), one end of which is connected to the bending machine housing (1), and the other end is connected to the upper die (3).

7. The sheet metal cable tray bending and positioning device according to claim 1, characterized in that, The top of the bending machine housing (1) is also fixedly connected to a table (5).

8. The sheet metal cable tray bending and positioning device according to claim 1, characterized in that, The bolt (603) detachably secures the sliding plate (604) and the threaded slider (602).

Images