Cable hook forming machine

Abstract

The invention relates to the technical field of cable hook shaping, in particular to a cable hook forming machine which comprises a machining panel and a bearing rail. A bending groove is formed in the machining panel and is of a U-shaped structure, a first bending unit is further arranged on the machining panel and comprises a shaping block arranged on the machining panel, the lower portion of the shaping block is of an arc-shaped structure, and the circle center of the lower portion of the bending groove and the circle center of the arc-shaped structure of the shaping block are concentric. The forming block is located on the inner side of a half enclosure formed by the bending groove, two first bending rollers are arranged in the bending groove and are symmetrically arranged relative to the forming block, a lifting block is arranged at the end of each first bending roller, and a lifting frame moving in the vertical direction is arranged on one side of each lifting block. And a spring is arranged between the lifting block and the lifting frame. The hook bending and shaping device not only can be used for bending hooks with rubber mats, but also can be used for shaping hooks with different diameters.

Description

Technical Field

[0001] The invention relates to the technical field of cable hook shaping, and in particular to a cable hook forming machine. Background Art

[0002] The existing cable hooks need to be bent by a bending machine before they can be formed. Bending machines include manual and automatic types. However, whether manual or automatic, the bending principle is basically the same, and the raw materials are bent using the lever principle. However, the existing equipment does not have an adjustment function and cannot adjust the placement gap according to the actual thickness of the raw material, resulting in poor adaptability of the bending machine.

[0003] Chinese patent CN220532838U discloses a cable hook bending machine, including a base, the top of the base is contactingly connected with a setting column, the top of the setting column is provided with a bending mechanism, and a connecting mechanism is provided between the setting column and the base; the bending mechanism includes a fixing column fixedly connected to the top of the setting column, the outer wall of the fixing column is fixedly provided with a bearing, the outer wall of the bearing is fixedly provided with a turntable, the inner wall of a slide groove opened on one side of the top of the turntable is rotatably connected with a screw, the outer wall of the screw is threadedly connected with a slider, the top of the slider is fixedly connected to a mounting plate, one side of the top of the mounting plate is fixedly provided with an arc baffle, the other side of the top of the mounting plate is rotatably connected with a movable pulley, and the outer wall of the turntable is fixedly provided with a push handle.

[0004] The above scheme allows the size of the gap for placing raw materials to be adjusted arbitrarily, but when bending the raw materials, it can only adapt to the bending of simple shapes, so it cannot be applied to the processing of cable hooks that are bent in multiple directions. At the same time, the above scheme is manually operated, and the bent hooks need to be manually taken out and loaded, which is labor-intensive. At the same time, some existing cable hooks are also provided with rubber pads on the outside, which will hinder the bending machine in the existing bending process, thereby making it impossible to bend. Summary of the invention

[0005] In view of the above problems, a cable hook forming machine is provided. A bending groove is opened on the processing panel, and a forming block is arranged on the inner side of the semi-enclosed area formed by the bending groove. When the hook is formed for the first time, the lifting frame rises in the vertical direction. Driven by the lifting frame, the two first bending rollers rise synchronously with the lifting frame, and each first bending roller is tightly attached to the side wall of the hook under the elastic force of the spring. In the second bending process, the second bending roller forms an arc-shaped sweeping area when it rotates with the lower pressure rod. The second bending roller bends the hook for a second time by rotating. In this way, the forming machine of the present invention can not only bend the hook with the rubber pad, but also adapt to the forming requirements of hooks with different diameters.

[0006] In order to solve the problems of the prior art, the present invention provides a cable hook forming machine, comprising a processing panel, on which a receiving rail for receiving the unprocessed hook is horizontally fixedly arranged; a bending groove is provided on the processing panel, the bending groove is a "U"-shaped structure, and a first bending unit is also provided on the processing panel, the first bending unit comprises a shaping block provided on the processing panel, the lower part of the shaping block is an arc structure, the center of the lower part of the bending groove is concentric with the center of the arc structure of the shaping block, the shaping block is located on the inner side of the semi-enclosed area formed by the bending groove, two first bending rollers are provided in the bending groove, the two first bending rollers are symmetrically arranged about the shaping block, a lifting block is provided at the end of each first bending roller, a lifting frame moving in the vertical direction is provided on one side of the lifting block, a gap exists between the lifting block and the lifting frame, a spring whose two ends are respectively fixedly connected to the lifting block and the lifting frame is provided in the gap, and when the lifting frame is lifted and lowered in the vertical direction, the two first bending rollers move synchronously in the bending grooves on both sides of the shaping block along the extension direction of the bending groove.

[0007] Preferably, when the lifting frame moves in the vertical direction, it has a highest position, a middle position and a lowest position from top to bottom in the vertical direction. When the lifting frame is at the highest position, the hook completes the secondary bending, and the two first bending rollers do not contact the hook; when the lifting frame is at the middle position, the hook completes one bending and presents a "U"-shaped structure, and at the same time, the two first bending rollers located on both sides of the forming block are respectively in contact with the two vertical structures of the hook; when the lifting frame is at the lowest position, the horizontal end surface formed by the upper part of the peripheral wall of the two first bending rollers is coplanar with the upper end surface of the receiving roller, the hook located on the receiving roller is linear, and the bottom of the forming block does not contact the hook.

[0008] Preferably, the linear distance between the upper end surface of the receiving rail and the lower part of the shaping block in the vertical direction is 2 cm.

[0009] Preferably, a second bending unit is also provided on the processing panel, and the second bending unit includes two support blocks, and the two support blocks are respectively located on both sides of the shaping block. A pressing unit is provided on the upper part of the support block for performing a second bending on the hook after the first shaping is completed. When the pressing unit presses the hook, the upper part of the support block provides support for the bent lower part of the hook.

[0010] Preferably, the pressing unit includes a first rotary driver horizontally arranged on the processing panel, a pressing rod is arranged at the end of the first rotary driver, a second bending roller is arranged on the end of the pressing rod away from the first rotary driver, and the second bending roller forms an arc-shaped sweeping area when the second bending roller rotates with the pressing rod, and the minimum straight-line distance between the inner ring of the arc-shaped sweeping area and the upper part of the support block is 1 cm.

[0011] Preferably, a clamping unit is provided on the side wall of the forming block, and the clamping unit includes a clamping groove opened on the side wall of the forming block along the thickness direction of the processing panel, a clamping plate is provided in the clamping groove for movement along the extension direction of the clamping groove, and an electric push rod for pushing the clamping plate to move is provided at the end of the clamping plate, and before the hook is bent for the second time, the clamping plate and the support block jointly clamp the hook.

[0012] Preferably, the shaping block passes through the processing panel along the thickness direction of the processing panel, and a movable frame is provided on the side of the processing panel away from the receiving rail. The movable frame is fixedly connected to the shaping block, and a slide is provided at the lower part of the movable frame. The slide drives the shaping block to move along the direction of the processing panel through the movable frame.

[0013] Preferably, a bidirectional coil spring is provided at the connection between the electric push rod and the clamping plate, and the clamping plate is in a horizontal state when no thrust is applied in the vertical direction.

[0014] Preferably, a gear is provided between the two support blocks, meshing teeth are provided on the sides of the two support blocks close to each other, the gear meshes with the meshing teeth on the two support blocks respectively, and a second rotary driver for driving the gear to rotate is provided at the end of the gear.

[0015] Preferably, a third rotary driver is vertically arranged on the mobile frame, and an output end of the third rotary driver is vertically downward. A threaded rod is fixedly arranged on the output end of the third rotary driver, and the threaded rod passes through the lifting frame in a vertical direction and cooperates with the lifting frame thread. A guide rod is arranged in parallel on one side of the threaded rod, and the guide rod passes through the lifting frame and cooperates with the lifting frame in a sliding manner.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. By opening a bending groove on the processing panel and arranging a shaping block on the inner side of the semi-enclosed area formed by the bending groove, when the hook is shaped for the first time, the lifting frame rises in the vertical direction. Driven by the lifting frame, the two first bending rollers rise synchronously with the lifting frame, and each first bending roller is tightly attached to the side wall of the hook under the elastic force of the spring. The distance between the upper end face of the receiving rail and the lower part of the shaping block in the vertical direction is greater than 2 cm, so that hooks with rubber pads of different sizes can be put into the forming machine of the present invention for processing, and in the second bending process, the second bending roller forms an arc sweeping area when rotating with the lower pressure rod, and the minimum straight-line distance between the inner ring of the arc sweeping area and the upper part of the support block is 1 cm, so that the second bending roller can also bend hooks of different sizes. In this way, the forming machine of the present invention can not only bend hooks with rubber pads, but also shape hooks of different diameters.

[0017] 2. By setting the clamping plate, the clamping plate is pushed out by the electric push rod according to the preset program before the hook is bent for the second time. At the same time, the slide drives the shaping block to retract the processing panel through the moving frame. During the retraction of the shaping block, the support blocks on the shaping block clamp the hook together. In this way, when the second bending roller bends the hook for the second time, the reaction force of the hook bending will not act on the rubber pad, avoiding damage to the rubber pad installed on the hook during bending.

[0018] 3. When the hook completes the secondary bending, the slide drives the moving frame to drive the shaping block to slide out from the processing panel, and the electric push rod also drives the clamping plate to retract, so that the clamping plate and the support block no longer clamp the hook, and then the lifting frame drives the first bending roller to rise from the middle position to the highest position in the vertical direction. In this process, the first bending roller needs to pass through the clamping plate, so a two-way coil spring is set at the connection between the clamping plate and the electric push rod, and the first bending roller can push the clamping plate to rotate when passing through the clamping plate, and when the first bending roller passes through the clamping plate, the clamping plate is restored to a horizontal state again under the action of the two-way coil spring, and when the first bending roller moves to the highest position, the first bending roller is no longer in contact with the hook. At this time, the hook is hung on the support block, and then the second rotary drive is started, and the second rotary drive drives the gear to rotate, and the gear drives the two support blocks to retract, so that the support block no longer supports the hook, so that the hook falls under the action of gravity, thus realizing automatic discharge of the forming machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The invention discloses a three-dimensional schematic diagram of a cable hook forming machine receiving a hook after completing one bending.

[0020] Figure 2 A cable hook forming machine of the present invention is a three-dimensional schematic diagram of a hook after completing secondary bending Figure 1 .

[0021] Figure 3 It is a three-dimensional schematic diagram of a cable hook forming machine of the present invention.

[0022] Figure 4 The present invention is a cable hook forming machine Figure 3 A local enlarged schematic diagram of point A in the middle.

[0023] Figure 5 The present invention is a three-dimensional schematic diagram of a cable hook forming machine with a hook after completing secondary bending. Figure 2 .

[0024] Figure 6 The present invention is a cable hook forming machine Figure 5 A local enlarged schematic diagram of point B in the middle.

[0025] Figure 7It is a three-dimensional schematic diagram of a cable hook forming machine of the present invention with a processing panel removed.

[0026] Figure 8 The present invention is a cable hook forming machine Figure 7 A partial enlarged schematic diagram of point C in the middle.

[0027] Fig. 9 It is a cutaway stereoscopic schematic diagram of a cable hook forming machine of the present invention with a processing panel removed.

[0028] Fig.10 The present invention is a cable hook forming machine Fig. 9 A partial enlarged schematic diagram of point D in the middle.

[0029] Fig.11 It is a three-dimensional schematic diagram of a cable hook forming machine of the present invention receiving a hook that has not been bent.

[0030] The numbers in the figure are: 1. Processing panel; 11. Support rail; 12. Bending groove; 2. First bending unit; 21. Shaping block; 22. First bending roller; 23. Lifting frame; 24. Lifting block; 25. Spring; 26. Extension rod; 3. Hook; 31. Rubber pad; 4. Second bending unit; 41. Support block; 42. Pressing unit; 421. Pressing rod; 422. Second bending roller; 423. First rotary drive; 43. Clamping unit; 431. Clamping plate; 432. Electric push rod; 433. Clamping groove; 44. Gear; 45. Second rotary drive; 5. Moving frame; 51. Slide; 52. Threaded rod; 53. Guide rod; 54. Third rotary drive. DETAILED DESCRIPTION

[0031] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] Reference Figure 1-Figure 4 and Fig.11A cable hook forming machine, comprising a processing panel 1, on which a receiving rail 11 for receiving an unprocessed hook 3 is fixedly arranged horizontally; a bending groove 12 is provided on the processing panel 1, and the bending groove 12 is a "U"-shaped structure. A first bending unit 2 is also provided on the processing panel 1, and the first bending unit 2 includes a shaping block 21 provided on the processing panel 1, and the lower part of the shaping block 21 is an arc-shaped structure. The center of the lower part of the bending groove 12 is concentric with the center of the arc structure of the shaping block 21, and the shaping block 21 is located on the inner side of the semi-enclosed area formed by the bending groove 12. 2 is provided with two first bending rollers 22, the two first bending rollers 22 are symmetrically arranged about the shaping block 21, a lifting block 24 is provided at the end of each first bending roller 22, a lifting frame 23 moving in the vertical direction is provided on one side of the lifting block 24, there is a gap between the lifting block 24 and the lifting frame 23, a spring 25 whose two ends are respectively fixedly connected to the lifting block 24 and the lifting frame 23 is provided in the gap, when the lifting frame 23 is lifted and lowered in the vertical direction, the two first bending rollers 22 are respectively moved synchronously in the bending grooves 12 on both sides of the shaping block 21 along the extension direction of the bending grooves 12.

[0033] The existing bending machine for hook 3 can only bend the hook 3 body when bending the hook 3, that is, the hook 3 is in a single steel wire state, and some existing cable hooks 3 are also provided with rubber pads 31. If the rubber pads 31 are combined and installed with the hook 3 after the hook 3 is bent, it will be difficult to install the rubber pads 31. This is because there is a card interface on the rubber pads 31. When the hook 3 and the rubber pads 31 are combined together, the hook 3 needs to be inserted into the card interface of the rubber pads 31. A more easy way to assemble is to pass the hook 3 in a straight state through the card interface of the rubber pads 31 when the hook 3 is in a straight state. However, the existing bending machine cannot adapt to bending the hook 3 with the rubber pads 31.

[0034] In order to make the forming machine adapt to bending the hook 3 with the rubber pad 31, the forming machine is further optimized. The specific structure and working process are as follows: A plurality of extension rods 26 are fixedly provided at the end of the lifting block 24 . A spring 25 is sleeved on the outside of each extension rod 26 . The extension rod 26 penetrates the lifting frame 23 in the horizontal direction and slidably cooperates with the lifting frame 23 .

[0035] The cable hook 3 needs to go through two bending processes to be finally formed. First, the first forming process is introduced, which is undertaken by the first bending unit 2. A linear drive is provided at one end of the receiving roller, which can push the hook 3 with the rubber sleeve into the receiving rail 11. A limiting plate is provided at the other end of the receiving rail 11. The end of the linear hook 3 is limited after contacting the limiting plate, thus completing the positioning of the hook 3 and ensuring that the hook 3 is a symmetrical "U"-shaped structure after the first bending process.

[0036] The moving path of the lifting frame 23 in the vertical direction has a lowest position and a highest position. When the hook 3 is just pushed onto the receiving rail 11 and the positioning is completed, the lifting frame 23 is in the lowest position. At this time, the upper parts of the two first bending rollers 22 are in contact with the lower part of the hook 3, and the horizontal end surface formed by the upper parts of the two first bending rollers 22 is coplanar with the upper end surface of the receiving rail 11, and at this time, the lower part of the shaping block 21 is not in contact with the upper part of the hook 3, so that the forming machine can adapt to the processing of hooks 3 of various diameters, as long as the thickness of the hook 3 with the rubber pad 31 is less than the minimum distance between the shaping block 21 and the receiving rail 11 in the vertical direction. The preferred solution here is to make the straight-line distance between the upper end surface of the receiving rail 11 and the lower part of the shaping block 21 be 2 cm, so that it can adapt to various hooks 3 equipped with rubber pads 31. Then, the hook 3 is subjected to the first bending operation, the lifting frame 23 rises in the vertical direction, and the two first bending rollers 22 rise synchronously under the drive of the lifting frame 23, and each first bending roller 22 is tightly attached to the side wall of the hook 3 under the elastic force of the spring 25. In this way, the bent hook 3 can be better formed. It is worth noting that the groove width of the bending groove 12 is greater than the diameter of the first bending roller 22, so that the distance between the first bending roller 22 and the shaping block 21 can be flexibly adjusted. At the same time, the width of the bending groove 12 should not be set too large, because the elastic force of the spring 25 is limited. When the first bending roller 22 moves upward along the vertical structure of the bending groove 12, the bending force for the hook 3 is all provided by the spring 25. Although the moment of the first bending roller 22 on the hook 3 becomes longer as the first bending roller 22 rises, making the hook 3 easier to deform, there is an intermediate position between the highest position and the lowest position of the lifting frame 23. During the first bending process, the first bending roller 22 stops moving after rising to the intermediate position, thus completing the first bending of the hook 3. In this way, the molding machine of the present invention can not only bend the hook 3 with the rubber pad 31, but also adapt to the shaping requirements of hooks 3 with different diameters.

[0037] However, the elastic force of the spring 25 will decay after long-term use. In this way, the width of the bending groove 12 is limited so that when the spring 25 decays, the first bending roller 22 can always move upward along the periphery of the bending roller, and still have a shaping effect on the hook 3. The hook 3 processed in this way is not a standard "U"-shaped structure. The vertical structure of the hook 3 under standard conditions will have a certain inclination, but the inclination angle is usually within 5 degrees and does not affect actual use. Of course, according to the needs of use, a spring 25 with a larger elastic coefficient can also be selected in actual use, and the spring 25 can be replaced regularly to achieve stable correction of the shaping of the hook 3.

[0038] Reference Figure 1-Figure 11 : When the lifting frame 23 moves in the vertical direction, it has a highest position, a middle position and a lowest position from top to bottom in the vertical direction. When the lifting frame 23 is at the highest position, the hook 3 completes the secondary bending, and the two first bending rollers 22 do not contact the hook 3; when the lifting frame 23 is at the middle position, the hook 3 completes the first bending and presents a "U"-shaped structure, and the two first bending rollers 22 located on both sides of the shaping block 21 are respectively in contact with the two vertical structures of the hook 3; when the lifting frame 23 is at the lowest position, the horizontal end surface formed by the upper part of the peripheral wall of the two first bending rollers 22 is coplanar with the upper end surface of the receiving roller, the hook 3 located on the receiving roller is in a straight line, and the bottom of the shaping roller does not contact the hook 3.

[0039] Reference Figure 1-Figure 11 : The linear distance between the upper end surface of the receiving rail 11 and the lower part of the shaping block 21 in the vertical direction is 2 cm.

[0040] Reference Figure 1-Figure 11 A second bending unit 4 is also provided on the processing panel 1, and the second bending unit 4 includes two support blocks 41, and the two support blocks 41 are respectively located on both sides of the shaping block 21, and a pressing unit 42 is provided on the upper part of the support block 41 for performing a second bending on the hook 3 after the first shaping is completed. When the pressing unit 42 presses the hook 3, the upper part of the support block 41 provides support for the lower part of the bent hook 3.

[0041] After the hook 3 completes the first shaping, the hook 3 has not yet formed a hook-shaped structure, but after the second shaping, the hook 3 forms a hook-shaped structure, thus completing the shaping.

[0042] Reference Figure 2 , Figure 5 and Figure 6The pressing unit 42 includes a first rotary driver 423 horizontally arranged on the processing panel 1, a pressing rod 421 is arranged at the end of the first rotary driver 423, a second bending roller 422 is arranged on the end of the pressing rod 421 away from the first rotary driver 423, and the second bending roller 422 forms an arc sweeping area when rotating with the pressing rod 421, and the minimum straight-line distance between the inner ring of the arc sweeping area and the upper part of the support block 41 is 1 cm.

[0043] If the lower pressure rod 421 drives the second bending roller 422 to rotate one circle, the moving area formed by the second bending roller 422 is a ring structure. In this way, during the actual bending operation, the arc sweeping area formed by the lower pressure rod 421 driving the second bending roller 422 to rotate has an inner ring and an outer ring. The diameter of most hooks 3 is less than 1 cm, so the second bending unit 4 can perform secondary bending on hooks 3 of different diameters. During the secondary bending, the first rotary driver 423 drives the lower pressure rod 421 to rotate, and the lower pressure rod 421 drives the second bending roller 422 to rotate out of the processing panel 1 and contact the hook 3. Then the first rotary driver 423 continues to drive the lower pressure rod 421 to rotate, so that the second bending roller 422 begins to bend the hook 3, thereby realizing the second bending process. After the secondary bending is completed, the first rotary driver 423 drives the lower pressure rod 421 to rotate and reset.

[0044] Reference Figure 8-Figure 10 A clamping unit 43 is arranged on the side wall of the shaping block 21, and the clamping unit 43 includes a clamping groove 433 opened on the side wall of the shaping block 21 along the thickness direction of the processing panel 1, and a clamping plate 431 is arranged in the clamping groove 433 for movement along the extension direction of the clamping groove 433, and an electric push rod 432 for pushing the clamping plate 431 to move is arranged at the end of the clamping plate 431. Before the hook 3 is bent for the second time, the clamping plate 431 and the support block 41 jointly clamp the hook 3.

[0045] Reference Figure 3 and Figure 7 : The shaping block 21 penetrates the processing panel 1 along the thickness direction of the processing panel 1, and a moving frame 5 is arranged on the side of the processing panel 1 away from the receiving rail 11. The moving frame 5 is fixedly connected to the shaping block 21, and a slide 51 is arranged at the lower part of the moving frame 5. The slide 51 drives the shaping block 21 to move along the direction of the processing panel 1 through the moving frame 5.

[0046] Before the hook 3 performs a secondary bending, the electric push rod 432 pushes out the clamping plate 431 according to a preset program, so that the clamping plate 431 contacts the hook 3. Since the hook 3 is equipped with a rubber pad 31, the pushing distance of the clamping plate 431 can be preset according to the straight-line distance from the side wall of the rubber pad 31 to the side wall of the hook 3 on the same side. At the same time, the slide 51 drives the shaping block 21 to retract the processing panel 1 through the moving frame 5. During the retraction of the shaping block 21, the support block 41 on the shaping block 21 clamps the hook 3 together. In this way, when the second bending roller 422 performs a secondary bending on the hook 3, the reaction force of the hook 3 during bending will not act on the rubber pad 31, thereby avoiding damage to the rubber pad 31 installed on the hook 3 during bending. When the moving frame 5 moves, the first bending roller 22 moves along with the moving frame 5 along the thickness direction of the processing panel 1.

[0047] Reference Figure 1-Figure 11 A bidirectional coil spring is provided at the connection between the electric push rod 432 and the clamping plate 431. When the clamping plate 431 is not subjected to a thrust in the vertical direction, it is in a horizontal state.

[0048] Reference Figure 6 : A gear 44 is arranged between the two support blocks 41, and meshing teeth are arranged on the sides of the two support blocks 41 close to each other. The gear 44 meshes with the meshing teeth on the two support blocks 41 respectively, and a second rotation driver 45 for driving the gear 44 to rotate is arranged at the end of the gear 44.

[0049] When the hook 3 completes the secondary bending, it is necessary to unload the material. Before unloading, the slide 51 drives the moving frame 5 to drive the shaping block 21 to slide out from the processing panel 1, and the electric push rod 432 also drives the clamping plate 431 to retract, so that the clamping plate 431 and the support block 41 no longer clamp the hook 3. Then the lifting frame 23 drives the first bending roller 22 to rise from the middle position to the highest position in the vertical direction. In the process of the first bending roller 22 rising from the middle position to the highest position, the first bending roller 22 needs to pass through the clamping plate 431. In this way, a bidirectional coil spring is set at the connection between the clamping plate 431 and the electric push rod 432. The first bending roller 22 When passing through the clamping plate 431, the clamping plate 431 can be pushed to rotate, and when the first bending roller 22 passes through the clamping plate 431, the clamping plate 431 restores to a horizontal state again under the action of the bidirectional coil spring, and when the first bending roller 22 moves to the highest position, the first bending roller 22 no longer contacts the hook 3, and the hook 3 is now hung on the support block 41, and then the second rotary drive 45 is started, and the second rotary drive 45 drives the gear 44 to rotate, and the gear 44 drives the two support blocks 41 to retract, so that the support block 41 no longer supports the hook 3, and the hook 3 falls under the action of gravity, thereby realizing automatic discharge of the forming machine.

[0050] Reference Figure 3 and Fig. 9 A third rotary driver 54 is vertically arranged on the mobile frame 5, and an output end of the third rotary driver 54 is vertically downward. A threaded rod 52 is fixedly arranged on the output end of the third rotary driver 54. The threaded rod 52 passes through the lifting frame 23 in the vertical direction and is threadedly matched with the lifting frame 23. A guide rod 53 is arranged in parallel on one side of the threaded rod 52. The guide rod 53 passes through the lifting frame 23 and is slidably matched with the lifting frame 23.

[0051] The third rotary driver 54 is preferably a servo motor. When the third rotary driver 54 is started, the third rotary driver 54 can drive the lifting frame 23 to move up and down through the threaded rod 52 .

[0052] Working principle: There are two shaping processes for shaping the hook 3. During the first shaping, the hook 3 in a straight line is first pushed into the receiving rail 11 and is limited by the receiving rail 11. Then the lifting frame 23 rises in the vertical direction, and the two first bending rollers 22 rise synchronously under the drive of the lifting frame 23. Each first bending roller 22 is tightly attached to the side wall of the hook 3 under the elastic force of the spring 25. In this way, the bent hook 3 can be better shaped. It is worth noting that the groove width of the bending groove 12 is greater than the diameter of the first bending roller 22, so that the distance between the first bending roller 22 and the shaping block 21 can be flexibly adjusted. At the same time, the width of the bending groove 12 should not be set too large. This is because the elastic force of the spring 25 is limited. When the first bending roller 22 moves upward along the vertical structure of the bending groove 12, the bending force for the hook 3 is all provided by the spring 25. Although as the first bending roller 22 rises, the torque of the first bending roller 22 on the hook 3 becomes longer, making the hook 3 easier to deform, there is an intermediate position between the highest position and the lowest position of the lifting frame 23. During the first bending process, the first bending roller 22 stops moving after rising to the intermediate position, thus completing the first bending of the hook 3.

[0053] During the secondary bending, the first rotary driver 423 drives the lower pressure rod 421 to rotate, and the lower pressure rod 421 drives the second bending roller 422 to rotate out from the processing panel 1 and contact the hook 3. Then the first rotary driver 423 continues to drive the lower pressure rod 421 to rotate, so that the second bending roller 422 begins to bend the hook 3, thereby realizing the second bending process.

[0054] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the protection scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A cable hook forming machine, comprising a processing panel (1), on which a receiving rail (11) for receiving an unprocessed hook (3) is fixedly arranged horizontally; It is characterized in that A bending groove (12) is provided on the processing panel (1), and the bending groove (12) is a "U"-shaped structure. A first bending unit (2) is also provided on the processing panel (1), and the first bending unit (2) comprises a shaping block (21) provided on the processing panel (1), and the lower part of the shaping block (21) is an arc-shaped structure. The center of the lower part of the bending groove (12) is concentric with the center of the arc-shaped structure of the shaping block (21), and the shaping block (21) is located on the inner side of the semi-enclosed area formed by the bending groove (12). Two first bending rollers (22) are provided in the bending groove (12), and the two first bending rollers (22) are about The shaping blocks (21) are symmetrically arranged, and a lifting block (24) is arranged at the end of each first bending roller (22). A lifting frame (23) that moves in a vertical direction is arranged on one side of the lifting block (24). A gap is provided between the lifting block (24) and the lifting frame (23). A spring (25) is arranged in the gap, and its two ends are respectively fixedly connected to the lifting block (24) and the lifting frame (23). When the lifting frame (23) is lifted in the vertical direction, the two first bending rollers (22) respectively move synchronously in the bending grooves (12) on both sides of the shaping block (21) along the extension direction of the bending grooves (12).

2. A cable hook forming machine according to claim 1, characterized in that: When the lifting frame (23) moves in the vertical direction, it has a highest position, a middle position and a lowest position in sequence from top to bottom in the vertical direction. When the lifting frame (23) is at the highest position, the hook (3) completes a secondary bending, and the two first bending rollers (22) do not contact the hook (3); when the lifting frame (23) is at the middle position, the hook (3) completes a primary bending and presents a "U"-shaped structure, and at the same time, the two first bending rollers (22) located on both sides of the shaping block (21) respectively contact the two vertical structures of the hook (3); when the lifting frame (23) is at the lowest position, the horizontal end surface formed by the upper parts of the peripheral walls of the two first bending rollers (22) is coplanar with the upper end surface of the receiving roller, the hook (3) located on the receiving roller is in a straight line, and the bottom of the shaping block (21) does not contact the hook (3).

3. A cable hook forming machine according to claim 1, characterized in that: The vertical distance between the upper end surface of the receiving rail (11) and the lower part of the shaping block (21) is 2 cm.

4. A cable hook forming machine according to claim 1, characterized in that: A second bending unit (4) is also provided on the processing panel (1), and the second bending unit (4) comprises two support blocks (41), the two support blocks (41) are respectively located on both sides of the shaping block (21), and a pressing unit (42) is provided on the upper part of the support block (41) for performing a second bending on the hook (3) after the first shaping is completed, and when the pressing unit (42) presses the hook (3), the upper part of the support block (41) provides support for the lower part of the bent hook (3).

5. A cable hook forming machine according to claim 4, characterized in that: The pressing unit (42) comprises a first rotating drive (423) horizontally arranged on the processing panel (1), a pressing rod (421) is arranged at the end of the first rotating drive (423), a second bending roller (422) is arranged on the end of the pressing rod (421) away from the first rotating drive (423), and the second bending roller (422) forms an arc-shaped sweeping area when rotating with the pressing rod (421), and the minimum straight-line distance between the inner ring of the arc-shaped sweeping area and the upper part of the support block (41) is 1 cm.

6. A cable hook forming machine according to claim 4, characterized in that: A clamping unit (43) is provided on the side wall of the shaping block (21), the clamping unit (43) comprising a clamping groove (433) provided on the side wall of the shaping block (21) along the thickness direction of the processing panel (1), a clamping plate (431) is provided in the clamping groove (433) for movement along the extension direction of the clamping groove (433), an electric push rod (432) for pushing the clamping plate (431) to move is provided at the end of the clamping plate (431), and before the hook (3) is bent for the second time, the clamping plate (431) and the support block (41) jointly clamp the hook (3).

7. The cable hook forming machine according to claim 1, characterized in that: The shaping block (21) penetrates the processing panel (1) along the thickness direction of the processing panel (1); a moving frame (5) is arranged on the side of the processing panel (1) away from the receiving rail (11); the moving frame (5) is fixedly connected to the shaping block (21); a slide (51) is arranged at the bottom of the moving frame (5); the slide (51) drives the shaping block (21) to move along the processing panel (1) through the moving frame (5).

8. A cable hook forming machine according to claim 6, characterized in that: A bidirectional coil spring is provided at the connection between the electric push rod (432) and the clamping plate (431), and the clamping plate (431) is in a horizontal state when no thrust is applied in the vertical direction.

9. A cable hook forming machine according to claim 4, characterized in that: A gear (44) is arranged between the two support blocks (41), and meshing teeth are arranged on the sides of the two support blocks (41) close to each other. The gear (44) meshes with the meshing teeth on the two support blocks (41) respectively, and a second rotation driver (45) for driving the gear (44) to rotate is arranged at the end of the gear (44).

10. The cable hook forming machine according to claim 7, characterized in that: A third rotary drive (54) is vertically arranged on the mobile frame (5), and an output end of the third rotary drive (54) is vertically downward. A threaded rod (52) is fixedly arranged on the output end of the third rotary drive (54), and the threaded rod (52) passes through the lifting frame (23) in a vertical direction and is threadedly engaged with the lifting frame (23). A guide rod (53) is arranged in parallel on one side of the threaded rod (52), and the guide rod (53) passes through the lifting frame (23) and is slidably engaged with the lifting frame (23).

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