A blank stamping, clamping and flipping device for producing hexagonal nuts

Abstract

The present invention relates to the technical field of nut stamping, and in particular to a blank stamping, clamping and flipping device for producing hexagonal nuts, comprising a frame and a clamping mechanism arranged on the frame, wherein a supporting mechanism and a flipping assembly are also arranged on the frame; the clamping mechanism comprises two clamping claws, two first slide blocks and a transmission assembly; the supporting mechanism comprises a driving assembly and a supporting plate, and through the arrangement of the flipping assembly, the supporting mechanism and two rotatable clamping claws, the two clamping claws can be directly driven to flip by the flipping assembly in a clamping state, thereby saving the time of loosening the blank of the hexagonal nut and flipping it for secondary clamping, saving steps, improving production efficiency, avoiding position errors of the hexagonal nut caused by secondary clamping of the clamping claws, and improving the qualified rate of the product.

Description

Technical Field

[0001] The invention relates to the technical field of nut stamping, and in particular to a blank stamping, clamping and flipping device for producing hexagonal nuts. Background Art

[0002] Hexagonal nuts are parts that tightly connect mechanical equipment. According to different operating requirements, hexagonal nuts of different sizes are generally used. At present, when producing super-large hexagonal nuts, the blanks are generally processed by stamping devices. During the stamping process, one side of the hexagonal nut blank needs to be stamped first, and then the other side of the hexagonal nut blank needs to be stamped. In the prior art, in order to maintain the stability of the stamping, two clamping claws are used to fix the two sides of the hexagonal nut blank. However, since the hexagonal nut blank needs to be flipped, the hexagonal nut blank needs to be flipped manually or by a robot after one side of the hexagonal nut blank is punched, and then the flipped blank is fixed by two clamping claws. However, due to the flipping, the position of the clamping claws will change when they clamp the hexagonal nut blank again, resulting in errors in the processing of the hexagonal nut blank, affecting the qualified rate of the product. At the same time, since the flipping efficiency of this method is low, the overall production efficiency of the product is affected. Summary of the invention

[0003] 1. Technical issues to be solved

[0004] The present invention is aimed at the above defects existing in the prior art, and specially proposes a blank stamping, clamping and flipping device for hexagonal nut production, which solves the problems of low stamping efficiency and complicated clamping of hexagonal nut blanks.

[0005] 2. Technical Solution

[0006] In order to solve the above technical problems, the present invention provides a blank stamping, clamping and flipping device for hexagonal nut production, comprising a frame and a clamping mechanism arranged on the frame, and a supporting mechanism and a flipping assembly are also arranged on the frame;

[0007] The clamping mechanism includes a transmission assembly, two clamping claws and two first slide blocks;

[0008] The two first sliders are respectively located at two ends of the frame, and the two first sliders can slide horizontally on the frame, and the transmission assembly is located between the two first sliders, and the transmission assembly is used to drive the two first sliders to move relative to each other;

[0009] The two clamping claws are arranged in a mirror-symmetrical state, and the two clamping claws are respectively sleeved on the two first sliding blocks on one side close to each other;

[0010] The flip assembly is located on the side of the frame, and is used to simultaneously drive the two clamping claws in the clamping state to flip;

[0011] The supporting mechanism includes a driving assembly and a supporting plate. The supporting plate is located at the bottom center of the frame, and the driving assembly is located below the supporting plate. The driving assembly is used to drive the supporting plate to rise and fall at the bottom of the frame. When the supporting plate rises, the top of the supporting plate will abut against the bottom of the two clamping claws, and the two clamping claws are fixed by the supporting plate.

[0012] Among them, two first slide rails in a mirror-like state are arranged in the middle part of the frame, and openings are arranged at the ends of the two first slide rails close to each other. A gap is left between the openings of the two first slide rails for the two clamping claws to flip over. Horizontal guide shafts are arranged on both sides of the two clamping claws, and the guide shafts can be slidably located in the first slide rails.

[0013] Among them, two guide rods are fixedly connected to the openings of the two first slide rails, the two guide rods are arranged in a mirror-symmetrical state, the two guide rods extend to the top and bottom of the rack respectively, and the two guide rods are inclined to the side close to each other on the two first slide rails.

[0014] Among them, the two clamping claws are both C-shaped structures, and elastic pads are arranged on the inner walls of the two clamping claws. When the two clamping claws clamp the workpiece, the two ends of the two clamping claws abut against each other, and the sides of the two clamping claws that abut against each other are respectively provided with insertion rods and insertion holes.

[0015] Among them, a hollow supporting shaft is provided on the sides of the two first sliding blocks that are close to each other, and a rotating shaft is fixedly connected on the sides of the two clamping claws that are away from each other. The rotating shaft of the clamping claw is sleeved in the supporting shaft. The flipping assembly includes a mounting plate, a first rack, a first gear and a first linear drive. The mounting plate is fixedly connected to the side of the frame in a vertical state, the first linear drive is fixedly connected to the frame, the first rack is slidably located on the frame, the first rack is transmission-connected to the first linear drive, the sliding direction of the first rack is perpendicular to the sliding direction of the clamping claws, the first gear is sleeved on the rotating shaft of one of the clamping claws, and when the two clamping claws clamp the workpiece, the first gear is meshed and connected with the first rack.

[0016] Wherein, second slide rails are arranged on both ends of the frame, and the two first sliders can be slidably located on the two second slide rails respectively. The transmission assembly includes a mounting frame, a second linear drive, a second gear and two second racks. The mounting frame is fixedly connected to the side wall of the frame, and the second gear can be rotatably located on the central inner wall of the mounting frame. The two second racks are respectively fixedly connected to the side walls of the two first sliders, the two second racks are centrally symmetrically arranged, and the two second racks are meshed with the second gear. The second linear drive is fixedly connected to one end of the frame, and one of the first sliders is transmission-connected to the second linear drive.

[0017] Wherein, a slot having the same outer contour as that of the two clamping claws when they are in contact is provided on the support plate, and when the support plate rises, the bottoms of the two clamping claws can be inserted into the slot.

[0018] A vertical positioning column is arranged in the center of the support plate. The positioning column is arranged in a conical structure, and the area of ​​the top of the positioning column is smaller than the area of ​​the bottom thereof.

[0019] The driving assembly includes a lifting frame, a base, a driving block and two second sliding blocks. The lifting frame is fixedly connected to the bottom center of the frame, the support plate can be slidably located on the lifting frame, the driving block is fixedly connected to the bottom of the support plate, a third slide rail in a horizontal state is arranged on the driving block, the base is fixedly connected to the bottom of the frame, the two second sliding blocks can slide relatively horizontally on both ends of the base, two first connecting rods and two second connecting rods are arranged on both sides of the two second sliding blocks, one end of the two first connecting rods is hinged to one end of the base, the other ends of the two first connecting rods are slidably matched with the third slide rail on the driving block, one end of the two second connecting rods is respectively hinged to the middle part of the two first connecting rods, and the other ends of the two second connecting rods are respectively hinged to the two side walls of the second sliding block.

[0020] Among them, the driving assembly also includes a screw and a rotation driving motor, a fourth slide rail is arranged on the base, two second sliders are respectively slidably located on the fourth slide rail, the screw rod is rotatably located on the base in a horizontal state, threads with opposite directions at both ends are arranged on the screw rod, and the screw rod passes through the two second sliders, and the two second sliders are both matched with the screw rod threads, the rotation driving motor is fixedly connected to the side wall of one end of the base, and the output shaft of the rotation driving motor passes through the side wall of the base and is fixedly connected to the screw rod.

[0021] 3. Beneficial Effects

[0022] Compared with the prior art, the present invention arranges a flipping assembly, a supporting mechanism and two rotatable clamping claws so that the two clamping claws can be directly driven to flip by the flipping assembly in the clamping state, thereby saving the time of loosening the blank of the hexagonal nut and flipping it for secondary clamping, saving steps, improving production efficiency, avoiding the position error of the hexagonal nut caused by the secondary clamping of the clamping claws, and improving the qualified rate of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 is a top view of the present invention;

[0025] Figure 3 is a front view of the present invention;

[0026] Figure 4 It is a three-dimensional structural schematic diagram of the frame and the clamping mechanism in the present invention;

[0027] Figure 5 It is a three-dimensional structural schematic diagram of the frame in the present invention;

[0028] Figure 6 It is a three-dimensional structural schematic diagram of the clamping mechanism in the present invention;

[0029] Figure 7 It is a three-dimensional structural schematic diagram of the transmission assembly and two first sliding blocks in the present invention;

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of two clamping claws in the present invention;

[0031] Fig. 9 It is a three-dimensional structural schematic diagram of the support mechanism in the present invention;

[0032] Fig.10 It is a schematic diagram of a partial three-dimensional structure of the support mechanism in the present invention;

[0033] Fig.11 It is a schematic diagram of the three-dimensional structure of the base in the present invention;

[0034] Fig.12 It is a schematic diagram of the three-dimensional structure of the support plate in the present invention;

[0035] Fig.13 The present invention Figure 7 The enlarged view of point A in the middle;

[0036] Fig.14 The present invention Figure 8 The enlarged view of point B in the middle;

[0037] Fig.15The present invention Fig. 9 Enlarged view of point C in the middle.

[0038] In the figure:

[0039] 1 is a rack;

[0040] 11 is a first slide rail; 12 is an opening; 121 is a guide rod; 13 is a second slide rail;

[0041] 2 is a clamping mechanism;

[0042] 21 is a clamping claw; 211 is a guide shaft; 212 is an elastic pad; 213 is an insertion rod; 214 is a plug hole; 215 is a rotating shaft; 22 is a first slider; 221 is a support shaft; 23 is a transmission assembly; 231 is a mounting frame; 232 is a second linear drive; 233 is a third gear; 234 is a second rack;

[0043] 3 is a supporting mechanism;

[0044] 31 is a support plate; 311 is a slot; 312 is a positioning column; 32 is a driving assembly; 321 is a lifting frame; 3211 is a third slide rail; 3212 is a driving block; 322 is a base; 3221 is a fourth slide rail; 3222 is a screw rod; 3223 is a rotation driving motor; 323 is a second slider; 3231 is a first connecting rod; 3232 is a second connecting rod;

[0045] 4 is a flip component;

[0046] 41 is a mounting plate; 411 is a first linear drive; 412 is a first rack; 42 is a first gear. DETAILED DESCRIPTION

[0047] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0048] Embodiment 1:

[0049] like Figures 1 to 15 As shown: a blank stamping, clamping and turning device for producing hexagonal nuts, comprising a frame 1 and a clamping mechanism 2 arranged on the frame 1, and a supporting mechanism 3 and a turning assembly 4 are also arranged on the frame 1;

[0050] The clamping mechanism 2 includes a transmission assembly 23, two clamping claws 21 and two first slide blocks 22;

[0051] The two first sliders 22 are respectively located at two ends of the frame 1, and the two first sliders 22 can slide horizontally on the frame 1. The transmission assembly 23 is located between the two first sliders 22, and the transmission assembly 23 is used to drive the two first sliders 22 to move relative to each other.

[0052] The two clamping claws 21 are arranged in a mirror-symmetrical state, and the two clamping claws 21 are respectively sleeved on the two first sliding blocks 22 on the sides close to each other;

[0053] The flip assembly 4 is located beside the frame 1, and is used to simultaneously drive the two clamping claws 21 in the clamping state to flip;

[0054] The supporting mechanism 3 includes a driving assembly 32 and a supporting plate 31. The supporting plate 31 is located at the bottom center of the frame 1, and the driving assembly 32 is located below the supporting plate 31. The driving assembly 32 is used to drive the supporting plate 31 to rise and fall at the bottom of the frame 1. When the supporting plate 31 rises, the top of the supporting plate 31 will abut against the bottom of the two clamping claws 21, and the two clamping claws 21 are fixed by the supporting plate 31.

[0055] When it is necessary to punch the blank of the hexagonal nut, first place the blank of the hexagonal nut on the support plate 31 of the support mechanism 3. At this time, the two first sliders 22 are driven to move by the transmission assembly 23, and then the two clamping claws 21 are driven respectively by the movement of the two first sliders 22, so that the two clamping claws 21 fix the blank of the hexagonal nut on the support plate 31, and the blank of the hexagonal nut between the two clamping claws 21 is punched by pressing down the punching device. At this time, the support plate 31 plays the role of supporting the blank of the hexagonal nut. When the hexagonal nut After one side of the blank is stamped, the driving component 32 drives the support plate 31 to move downward, thereby providing space for the two clamping claws 21 to flip. Since the two clamping claws 21 are respectively sleeved on the first slider 22, and the two clamping claws 21 are in a clamping state at this time, the flipping component 4 drives the two clamping claws 21 to flip at the same time, so that the blank of the hexagonal nut between the two clamping claws 21 is also flipped, so as to facilitate the stamping of the other side of the blank of the hexagonal nut. After the blank of the hexagonal nut is flipped, the driving component 32 drives the support plate 31 to The two clamping claws 21 are driven by the turning assembly 4, the supporting mechanism 3 and the two rotatable clamping claws 21 are set, and the two clamping claws 21 are directly driven by the turning assembly 4 to turn over in the clamping state, thereby saving the time of loosening the hexagonal nut blank and turning it over for secondary clamping, saving steps, improving production efficiency, avoiding the position error of the hexagonal nut caused by the secondary clamping of the clamping claws 21, and improving the qualified rate of the product.

[0056] like Figures 1 to 8 As shown, two first slide rails 11 in a mirror-like state are provided in the middle of the frame 1, and openings 12 are provided at the ends of the two first slide rails 11 close to each other. A gap is left between the openings 12 of the two first slide rails 11 for the two clamping claws 21 to flip, and horizontal guide shafts 211 are provided on both sides of the two clamping claws 21, and the guide shafts 211 can be slidably located in the first slide rails 11.

[0057] Since the two clamping claws 21 are rotatably sleeved on the two first sliders 22, the two clamping claws 21 may rotate when being driven by the first slider 22, which makes it impossible to accurately clamp the hexagonal nut blank on the support plate 31. In order to ensure the clamping stability of the two clamping claws 21, the guide shaft 211 and the first slide rail 11 are arranged so that when the two clamping claws 21 are driven by the first slider 22, the guide shafts 211 of the two clamping claws 21 slide in the first slide rail 11, thereby This makes it impossible for the clamping claw 21 to rotate during the movement. When the two clamping claws 21 move to the interval between the two first slide rails 11, the guide shaft 211 of the clamping claw 21 is not constrained by the first slide rail 11, so that the clamping claw 21 can rotate freely. The flipping component 4 can drive the clamping claw 21 to flip, so that the hexagonal nut blank between the two clamping claws 21 is flipped, thereby improving the stability of the two clamping claws 21 in clamping the hexagonal nut blank, and at the same time does not affect the flipping of the two clamping claws 21.

[0058] like Figures 1 to 8 As shown, two guide rods 121 are fixedly connected to the openings 12 of the two first slide rails 11, and the two guide rods 121 are arranged in a mirror-symmetrical state. The two guide rods 121 extend toward the top and bottom of the rack 1 respectively, and the two guide rods 121 are inclined toward the side of the two first slide rails 11 that are close to each other.

[0059] Due to the gap between the two first slide rails 11, the two clamping claws 21 may rotate slightly after being flipped, so that during the resetting process of the two clamping claws 21, the guide shafts 211 of the two clamping claws 21 may not be able to return to the first slide rail 11, causing the clamping claws 21 to be stuck. Through the setting of the guide rod 121, since the two guide rods 121 extend to the top and bottom of the frame 1 respectively, and the two guide rods 121 are inclined to the side close to each other on the two first slide rails 11, when the clamping claw 21 retreats, the guide shaft 211 of the clamping claw 21 will slide along the guide rod, so that the guide shaft 211 can slide into the first slide rail 11, thereby adjusting the posture of the clamping claw 21, so that the clamping claw 21 can clamp the hexagonal nut blank more stably, thereby improving the stability of the equipment.

[0060] like Figure 6 , Figure 8 and Fig.14 As shown, the two clamping claws 21 are both C-shaped structures, and elastic pads 212 are provided on the inner walls of the two clamping claws 21. When the two clamping claws 21 clamp the workpiece, the two ends of the two clamping claws 21 abut against each other, and the sides of the two clamping claws 21 that abut against each other are respectively provided with an insertion rod 213 and a socket 214.

[0061] Through the C-shaped structure of the clamping claws 21, when the two clamping claws 21 clamp the blank of the hexagonal nut, the ends of the two clamping claws 21 abut against each other, so that the two clamping claws 21 can rotate synchronously, which is convenient for turning over the blank of the hexagonal nut. Due to the abutment of the ends of the clamping claws 21, the inner walls of the two clamping claws 21 may not be stable enough to clamp the blank of the hexagonal nut, which may cause the blank of the hexagonal nut to loosen. In order to improve the stability of clamping, the elastic pad 212 is set to improve the fit between the inner walls of the two clamping claws 21 and the blank of the hexagonal nut, making the clamping tighter. At the same time, through the setting of the insertion rod 213 and the insertion hole 214, when the two clamping claws 21 abut, the insertion rod 213 of one of the clamping claws 21 will be inserted into the insertion hole 214 of the other clamping claw 21, thereby improving the stability of turning over the two clamping claws 21.

[0062] like Figures 1 to 9 and Fig.15 As shown: a hollow support shaft 221 is provided on the side close to each other of the two first sliders 22, and a rotating shaft 215 is fixedly connected on the side away from each other of the two clamping claws 21. The rotating shaft 215 of the clamping claw 21 is sleeved in the support shaft 221. The flip assembly 4 includes a mounting plate 41, a first rack 412, a first gear 42 and a first linear drive 411. The mounting plate 41 is fixedly connected to the side of the frame 1 in a vertical state. The first linear drive 411 is fixedly connected to the frame 1. The first rack 412 is slidably located on the frame 1. The first rack 412 is transmission-connected to the first linear drive 411. The sliding direction of the first rack 412 is perpendicular to the sliding direction of the clamping claw 21. The first gear 42 is sleeved on the rotating shaft 215 of one of the clamping claws 21. When the two clamping claws 21 clamp the workpiece, the first gear 42 is meshed with the first rack 412.

[0063] After the two clamping jaws 21 clamp the hexagonal nut blank, the first linear drive 411 is started. The first linear drive 411 is preferably a cylinder. The first linear drive 411 drives the first rack 412 to slide. The sliding of the first rack 412 drives the rotation of the first gear 42 meshing with it. The rotation of the first gear 42 drives the rotation of the rotating shaft 215, so that the clamping jaw 21 rotates on the support shaft 221 of the slider through the rotating shaft 215, thereby driving the other clamping jaw 21 abutting against it, so that the two clamping jaws 21 rotate synchronously, so that the hexagonal nut blank between the two clamping jaws 21 is flipped, thereby saving the second clamping step of the hexagonal nut blank, thereby reducing time and improving efficiency.

[0064] like Figures 1 to 7 and Fig.13As shown: second slide rails 13 are provided on both ends of the frame 1, and two first sliders 22 can be slidably located on the two second slide rails 13 respectively. The transmission assembly 23 includes a mounting frame 231, a second linear driver 232, a second gear and two second racks 234. The mounting frame 231 is fixedly connected to the side wall of the frame 1, and the second gear is rotatably located on the central inner wall of the mounting frame 231. The two second racks 234 are respectively fixedly connected to the side walls of the two first sliders 22. The two second racks 234 are centrally symmetrically arranged, and the two second racks 234 are meshed with the second gear. The second linear driver 232 is fixedly connected to one end of the frame 1, and one of the first sliders 22 is transmission-connected to the second linear driver 232.

[0065] When it is necessary to clamp the blank of the hexagonal nut, the second linear drive 232 is started, and the second linear drive 232 is preferably a cylinder. The second linear drive 232 drives the first slider 22 to be transmission-connected thereto, so that the first slider 22 slides along the second slide rail 13, thereby driving the sliding of the second rack 234 fixedly connected to the first slider 22, and the sliding of the second rack 234 drives the rotation of the second gear meshing with it, and the rotation of the second gear drives the sliding of another second rack 234 meshing with it, so that the first slider 22 on the other side is driven, and since the two second racks 234 are centrally symmetrically arranged, the two second racks 234 make relative motion, thereby making the two first sliders 22 move relative motion, and making the clamping claws 21 respectively mounted on the two first sliders 22 make relative motion, thereby clamping the blank of the hexagonal nut by the two clamping claws 21, and completing the fixation of the blank of the hexagonal nut.

[0066] like Figures 1 to 3 , Fig.10 , Fig.12 As shown, a slot 311 having the same outer contour as the two clamping claws 21 when they abut is provided on the support plate 31 . When the support plate 31 rises, the bottoms of the two clamping claws 21 can be inserted into the slot 311 .

[0067] By setting the card slot 311, when the support plate 31 rises, the bottom of the two clamping claws 21 can be clamped into the card slot 311, thereby fixing the two clamping claws 21 so that the clamping claws 21 will not be displaced. The support plate 31 not only fixes the two clamping claws 21, but also provides supporting force to the two clamping claws 21, so that when the stamping device stamps the blank of the hexagonal nut, the two clamping claws 21 will not be damaged.

[0068] like Fig.12As shown, a vertical positioning column 312 is arranged in the center of the support plate 31 . The positioning column 312 is arranged in a conical structure, and the area of ​​the top of the positioning column 312 is smaller than the area of ​​the bottom thereof.

[0069] By setting the conical positioning column 312, the inner wall of the hole of the hexagonal nut slides along the outer edge of the positioning column 312, which is convenient for preliminary positioning of the hexagonal nut blank. At the same time, the area of ​​the top is smaller than the area of ​​the bottom, which makes it more convenient to put the hexagonal nut on the positioning column 312.

[0070] Embodiment 2:

[0071] Compared with Example 1, Figures 9 to 12 As shown: the driving assembly 32 includes a lifting frame 321, a base 322, a driving block 3212 and two second sliding blocks 323, the lifting frame 321 is fixedly connected to the bottom center of the frame 1, the support plate 31 is slidably located on the lifting frame 321, the driving block 3212 is fixedly connected to the bottom of the support plate 31, a third slide rail 3211 in a horizontal state is arranged on the driving block 3212, the base 322 is fixedly connected to the bottom of the frame 1, the two second sliding blocks 323 are relatively slidable horizontally at both ends of the base 322, two first connecting rods 3231 and two second connecting rods 3232 are arranged on both sides of the two second sliding blocks 323, one end of the two first connecting rods 3231 is hinged to one end of the base 322, and the other end of the two first connecting rods 3231 is hinged to the third slide rail 3211 on the driving block 3212 In a sliding fit, one end of the two second connecting rods 3232 is hinged to the middle of the two first connecting rods 3231 , and the other ends of the two second connecting rods 3232 are hinged to the two side walls of the second sliding block 323 .

[0072] The relative sliding of the two second sliding blocks 323 will drive the second connecting rod 3232 hinged to the second sliding block 323, and the second connecting rod 3232 will pull the first connecting rod 3231 hinged to it. Since one end of the first connecting rod 3231 is hinged to one end of the base 322, the first connecting rod 3231 will rotate with the hinged portion with the base 322 at the center of the circle, so that the other end of the first connecting rod 3231 slides in the third slide rail 3211 of the driving block 3212. Through the movement of the two second sliding first connecting rods 3231, the driving block 3212 slides along the third slide rail 3211 on the lifting frame 321, thereby driving the driving block 3212 The support plate 31 at the top realizes the lifting and lowering of the support plate 31, so as to facilitate the fixing of the two clamping claws 21 and avoid the rotation of the clamping claws 21 through the lifting plate. The first connecting rod 3231 and the second connecting rod 3232 form a triangular structure, so that the pressing device provides a more stable support platform for the hexagonal nut blank during stamping, ensuring the stability of the support.

[0073] like Figures 9 to 12 As shown: the driving assembly 32 also includes a screw rod 3222 and a rotation driving motor 3223. A fourth slide rail 3221 is provided on the base 322. Two second sliders 323 are respectively slidably located on the fourth slide rail 3221. The screw rod 3222 is horizontally rotatable on the base 322. The screw rod 3222 is provided with threads with opposite directions at both ends, and the screw rod 3222 passes through the two second sliders 323. The two second sliders 323 are both threadedly matched with the screw rod 3222. The rotation driving motor 3223 is fixedly connected to the side wall of one end of the base 322. The output shaft of the rotation driving motor 3223 passes through the side wall of the base 322 and is fixedly connected to the screw rod 3222.

[0074] By starting the rotation drive motor 3223, the output shaft of the rotation drive motor 3223 drives the rotation of the screw rod 3222 fixedly connected thereto, and the rotation of the screw rod 3222 drives the second slider 323 threadedly matched therewith. Since the screw rod 3222 is a bidirectional threaded screw rod 3222, the second slider 323 can make relative motion along the direction of the fourth slide rail 3221, so that the movement of the second slider 323 drives the drive block 3212 transmission-connected thereto, so that the drive block 3212 can drive the support plate 31 to slide on the lifting frame 321, thereby facilitating the clamping, fixing and material removal of the hexagonal nut blank. The self-locking characteristic of the screw rod 3222 improves the stability of the third slider, so that the drive block 3212 can be started and stopped when it moves to any position, thereby facilitating the control of the movement of the support plate 31.

Claims

1. A blank punching, clamping and flipping device for producing hexagonal nuts, characterized in that: The blank punching, clamping and flipping device for producing hexagonal nuts comprises a frame and a clamping mechanism arranged on the frame, and a supporting mechanism and a flipping assembly are also arranged on the frame; The clamping mechanism includes a transmission assembly, two clamping claws and two first slide blocks; The two first sliders are respectively located at two ends of the frame, and the two first sliders can slide horizontally on the frame, and the transmission assembly is located between the two first sliders, and the transmission assembly is used to drive the two first sliders to move relative to each other; The two clamping claws are arranged in a mirror-symmetrical state, and the two clamping claws are respectively sleeved on the two first sliding blocks on one side close to each other; The flip assembly is located on the side of the frame, and is used to simultaneously drive the two clamping claws in the clamping state to flip; The support mechanism includes a driving assembly and a supporting plate. The supporting plate is located at the bottom center of the frame, and the driving assembly is located below the supporting plate. The driving assembly is used to drive the supporting plate to rise and fall at the bottom of the frame. When the supporting plate rises, the top of the supporting plate will abut against the bottoms of the two clamping claws, and the two clamping claws are fixed by the supporting plate. The two clamping claws are both C-shaped structures, and elastic pads are provided on the inner walls of the two clamping claws. When the two clamping claws clamp the workpiece, the two ends of the two clamping claws abut against each other, and the abutting sides of the two clamping claws are respectively provided with a plug rod and a plug hole; A hollow supporting shaft is provided on the sides of the two first sliding blocks that are close to each other, and a rotating shaft is fixedly connected on the sides of the two clamping claws that are away from each other. The rotating shaft of the clamping claw is sleeved in the supporting shaft. The flipping assembly includes a mounting plate, a first rack, a first gear and a first linear drive. The mounting plate is fixedly connected to the side of the frame in a vertical state, the first linear drive is fixedly connected to the frame, the first rack is slidably located on the frame, the first rack is transmission-connected to the first linear drive, the sliding direction of the first rack is perpendicular to the sliding direction of the clamping claws, the first gear is sleeved on the rotating shaft of one of the clamping claws, and when the two clamping claws clamp the workpiece, the first gear is meshed and connected with the first rack.

2. A blank punching, clamping and flipping device for hexagonal nut production according to claim 1, characterized in that: Two first slide rails in a mirror image are arranged in the middle of the frame. The ends of the two first slide rails close to each other are each provided with an opening. A gap is left between the openings of the two first slide rails for the two clamping claws to flip over. Horizontal guide shafts are arranged on both sides of the two clamping claws, and the guide shafts can be slidably located in the first slide rails.

3. A blank punching, clamping and flipping device for producing hexagonal nuts according to claim 2, characterized in that: Two guide rods are fixedly connected to the openings of the two first slide rails. The two guide rods are arranged in a mirror-symmetrical state. The two guide rods extend to the top and bottom of the rack respectively, and the two guide rods are inclined to the side of the two first slide rails that are close to each other.

4. The blank punching, clamping and flipping device for producing hexagonal nuts according to claim 1, characterized in that: Second slide rails are provided on both ends of the frame, and the two first sliders can be slidably located on the two second slide rails respectively. The transmission assembly includes a mounting frame, a second linear drive, a second gear and two second racks. The mounting frame is fixedly connected to the side wall of the frame, and the second gear can be rotatably located on the central inner wall of the mounting frame. The two second racks are fixedly connected to the side walls of the two first sliders respectively, the two second racks are centrally symmetrically arranged, and the two second racks are meshed with the second gear. The second linear drive is fixedly connected to one end of the frame, and one of the first sliders is transmission-connected to the second linear drive.

5. The blank punching, clamping and flipping device for producing hexagonal nuts according to claim 1, characterized in that: The support plate is provided with a slot having the same outer contour as the two clamping claws when they are in contact with each other. When the support plate rises, the bottoms of the two clamping claws can be inserted into the slot.

6. A blank punching, clamping and flipping device for producing hexagonal nuts according to claim 5, characterized in that: A vertical positioning column is arranged in the center of the support plate. The positioning column is arranged in a conical structure, and the area of ​​the top of the positioning column is smaller than the area of ​​the bottom thereof.

7. The blank punching, clamping and flipping device for producing hexagonal nuts according to claim 1, characterized in that: The driving assembly includes a lifting frame, a base, a driving block and two second sliding blocks. The lifting frame is fixedly connected to the bottom center of the frame, the support plate can be slidably located on the lifting frame, the driving block is fixedly connected to the bottom of the support plate, a third slide rail in a horizontal state is arranged on the driving block, the base is fixedly connected to the bottom of the frame, the two second sliding blocks can slide relatively horizontally on both ends of the base, two first connecting rods and two second connecting rods are arranged on both sides of the two second sliding blocks, one end of the two first connecting rods is hinged to one end of the base, the other ends of the two first connecting rods are slidably matched with the third slide rail on the driving block, one end of the two second connecting rods is respectively hinged to the middle part of the two first connecting rods, and the other ends of the two second connecting rods are respectively hinged to the two side walls of the second sliding block.

8. The blank punching, clamping and flipping device for producing hexagonal nuts according to claim 7, characterized in that: The driving assembly also includes a screw and a rotation driving motor. A fourth slide rail is provided on the base. Two second sliders are slidably located on the fourth slide rail. The screw is rotatably located on the base in a horizontal state. The screw is provided with threads with opposite directions at both ends, and the screw passes through the two second sliders. The two second sliders are both matched with the screw thread. The rotation driving motor is fixedly connected to the side wall of one end of the base, and the output shaft of the rotation driving motor passes through the side wall of the base and is fixedly connected to the screw.

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