Multifunctional nut edge trimmer

Abstract

The invention belongs to the technical field of nut edge cutting, and particularly relates to a multifunctional nut edge cutting machine which comprises a workbench, a plurality of supporting shafts are rotationally connected to the workbench, nut fixing mechanisms are fixedly arranged on the supporting shafts, a supporting frame is fixedly arranged on the workbench, a plurality of air cylinders are fixedly arranged on the supporting frame, and the nut fixing mechanisms are fixedly arranged on the air cylinders. The air cylinders are in one-to-one correspondence with the nut fixing mechanisms, and the output ends of the air cylinders are fixedly connected with heat dissipation mechanisms. According to the device, all nuts can be rapidly fixed, meanwhile, edge cutting work can be conducted on all the nuts at a time, labor loss caused by manual stamping edge cutting is avoided, the working efficiency is effectively improved, meanwhile, the device can be matched with the edge cutting process to automatically conduct edge changing on the nuts, the usability of the device is greatly facilitated, and in the edge cutting operation process, the edge cutting efficiency is greatly improved. The trimming cutter can be rapidly cooled, and abrasion caused by overheating of the trimming cutter is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of nut trimming, and in particular relates to a multifunctional nut trimming machine. Background Art

[0002] A nut is a part that is screwed together with a bolt or screw for fastening. It is a component that all manufacturing machinery must use. It is divided into several types according to the material, such as carbon steel, stainless steel, and non-ferrous metals (such as copper).

[0003] Double-cut flange nuts are a type of nuts. During the production process of double-cut flange nuts, the sides of the nut blank are often trimmed. The trimming method is generally manual stamping, and only one nut blank can be processed at a time, which wastes manpower and has low efficiency. At the same time, after cutting one side of the double-cut flange nut blank, it is necessary to manually adjust the position of the nut blank so that the trimming knife can cut the other side, which is relatively cumbersome. In addition, during the long-term trimming operation, the trimming knife will increase its internal energy due to continuous friction and extrusion, thereby causing the temperature of the trimming knife to rise rapidly. If the heat cannot be dissipated in time, the wear of the trimming knife will be accelerated, thereby affecting the service life of the trimming knife.

[0004] Therefore, we propose a multifunctional nut trimming machine to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a multifunctional nut trimming machine in view of the above problems.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solutions: a multifunctional nut trimming machine, comprising a workbench, a plurality of support shafts are rotatably connected to the workbench, and a nut fixing mechanism is fixedly arranged on the support shaft, a support frame is fixedly arranged on the workbench, and a plurality of cylinders are fixedly arranged on the support frame, and the cylinders correspond to the nut fixing mechanism one by one, a heat dissipation mechanism is fixedly connected to the output end of the cylinder, and a trimming knife is fixedly arranged on the heat dissipation mechanism, a self-locking transmission mechanism matching with the support shaft is arranged on the workbench, a driving cavity matching with the self-locking transmission mechanism is provided on the workbench, and the output end of the self-locking transmission mechanism extends to a corresponding driving cavity in which a gear is arranged and fixedly sleeved, a guide rod is slidably connected in the driving cavity, an end of the guide rod away from the driving cavity is fixedly connected to the heat dissipation mechanism, and a plurality of telescopic tooth mechanisms matching with the gears are arranged on the guide rod, a trigger mechanism matching with the guide rod is arranged in the driving cavity, and the trigger mechanism is electrically connected to the telescopic tooth mechanism.

[0007] In the above-mentioned multifunctional nut trimming machine, the nut fixing mechanism consists of a nut seat and an elastic sleeve, the nut seat is fixedly arranged on the upper end of the corresponding support shaft, and the elastic sleeve is fixedly sleeved in the nut seat, and electrorheological fluid is injected into the elastic sleeve.

[0008] In the above-mentioned multifunctional nut trimming machine, the heat dissipation mechanism consists of a support seat, a temperature difference conductive plate, two heat-conducting rods and a plurality of heat-dissipating fins. The support seat is fixedly arranged on the output end of the corresponding cylinder, and the support seat is fixedly connected to the guide rod. The temperature difference conductive plate is fixedly arranged in the support seat. The two heat-conducting rods and the plurality of heat-dissipating fins are distributed and fixedly arranged on the upper and lower sides of the support seat. The heat-conducting rod is in contact with the heat-absorbing end of the temperature difference conductive plate, and the heat-dissipating fins are in contact with the heat-releasing end of the temperature difference conductive plate. The two heat-conducting rods are fixedly connected to the corresponding trimming knives.

[0009] In the above-mentioned multifunctional nut trimming machine, the self-locking transmission mechanism consists of a transmission chamber, a worm and a worm wheel. The transmission chamber is opened on the lower side of the nut seat, and the lower end of the support shaft extends into the transmission chamber and is fixedly sleeved with the worm wheel. The worm is rotatably arranged in the transmission chamber, and the worm is meshed with the worm wheel. The unfolded helix angle of the worm is smaller than the friction angle between the worm and the worm wheel, and one end of the worm extends into the drive chamber and is fixedly sleeved with the gear.

[0010] In the above-mentioned multifunctional nut trimming machine, the telescopic tooth mechanism is composed of a tooth cavity, a tooth block, an electromagnetic block and a permanent magnet block. The tooth cavity is opened on the guide rod, and the electromagnetic block is embedded in the tooth cavity. The electromagnetic block is fixedly connected to the permanent magnet block through a reset spring, and the permanent magnet block is slidably connected to the tooth cavity. The tooth block is fixedly arranged on the permanent magnet block, and one end of the tooth block passes through the tooth cavity and meshes with the gear.

[0011] In the above-mentioned multifunctional nut trimming machine, the trigger mechanism is composed of a guide seat, a first electric contact and a second electric contact, the guide seat is slidably arranged in the driving cavity, and the first electric contact is embedded in one side wall of the guide seat, the second electric contact is embedded in the inner wall of the driving cavity, and the second electric contact is in contact with the first electric contact, the first electric contact is electrically connected to each electromagnetic block, and a power-off delay relay electrically connected to the second electric contact is arranged on the workbench.

[0012] In the above-mentioned multifunctional nut trimming machine, a conductive slip ring is arranged on the support shaft, and the conductive slip ring is electrically connected to the electrorheological fluid.

[0013] In the above-mentioned multifunctional nut trimming machine, two supporting blocks are fixedly provided on the lower side of the nut seat, and an annular sliding groove matching with the two supporting blocks is opened on the workbench.

[0014] Compared with the existing technology, the beneficial effects of the present invention are: by setting up multiple nut fixing mechanisms, it is convenient to fix multiple nut blanks to be trimmed at the same time, and at the same time, by cooperating with the set multiple cylinders, multiple trimming knives can be controlled at the same time to perform trimming operations on each nut blank at the same time, which not only avoids the labor loss of manual stamping, but also effectively improves work efficiency. Through the set trigger mechanism, the travel of the cutting knife can be coordinated to automatically control the telescopic tooth mechanism to act, so as to cooperate with the transmission mechanism, so that after the trimming operation, the support shaft can drive the nut to rotate through the nut seat to automatically change the edge, avoiding the tedious manual control. Through the set heat dissipation mechanism, the heat generated by the trimming knife can be promptly discharged during the trimming operation to avoid the trimming knife from overheating and wear.

[0015] To sum up, through the design of the present invention, each nut can be quickly fixed, and each nut can be trimmed at one time, which not only avoids the labor loss of manual punching and trimming, but also effectively improves work efficiency. At the same time, the nut can be automatically changed in conjunction with the trimming process, which greatly facilitates the usability of the device. During the trimming operation, the trimming knife can quickly dissipate heat to avoid overheating and wear of the trimming knife. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a multifunctional nut trimming machine provided by the present invention;

[0017] Figure 2 It is a front perspective structural schematic diagram of a multifunctional nut trimming machine provided by the present invention in a working state;

[0018] Figure 3 It is a front perspective structural schematic diagram of a heat dissipation mechanism of a multifunctional nut trimming machine provided by the present invention;

[0019] Figure 4 It is a side perspective structural schematic diagram of the cooperation between a guide rod and a telescopic tooth mechanism of a multifunctional nut trimming machine provided by the present invention;

[0020] Figure 5 It is a schematic cross-sectional structure diagram of an elastic jacket of a multifunctional nut trimming machine provided by the present invention;

[0021] Figure 6 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 7 for Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0023] In the figure: 1 workbench, 2 support shaft, 3 nut fixing mechanism, 31 nut seat, 32 elastic jacket, 4 support frame, 5 cylinder, 6 heat dissipation mechanism, 61 support seat, 62 temperature difference conductive plate, 63 heat conducting rod, 64 heat dissipation fin, 7 trimming knife, 8 self-locking transmission mechanism, 81 transmission cavity, 82 worm, 83 worm wheel, 9 driving cavity, 10 gear, 11 guide rod, 12 telescopic tooth mechanism, 121 tooth cavity, 122 tooth block, 123 electromagnetic block, 124 permanent magnet block, 13 trigger mechanism, 131 guide seat, 132 first electric contact piece, 133 second electric contact piece, 14 electrorheological fluid, 15 reset spring, 16 power-off delay relay, 17 conductive slip ring, 18 support block, 19 annular slide groove, 20 nut embryo. DETAILED DESCRIPTION

[0024] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0025] like Figure 1-7 As shown, a multifunctional nut trimming machine includes a workbench 1, a plurality of support shafts 2 are rotatably connected to the workbench 1, and a nut fixing mechanism 3 is fixedly arranged on the support shaft 2, the nut fixing mechanism 3 is composed of a nut seat 31 and an elastic jacket 32, the nut seat 31 is fixedly arranged on the upper end of the corresponding support shaft 2, and the elastic jacket 32 ​​is fixedly sleeved in the nut seat 31, two support blocks 18 are fixedly arranged on the lower side of the nut seat 31, and an annular groove 19 matching with the two support blocks 18 is opened on the workbench 1, and the matching between the support block 18 and the annular groove 19 , which can provide stable support for the nut seat 31 without affecting the rotation of the nut seat 31. The electrorheological fluid 14 is injected into the elastic jacket 32. The nut embryo 20 is conveniently clamped and fixed by the elastic jacket 32. The electrorheological fluid 14 can utilize the solid-liquid changes of its own power on and off to lock or unlock the clamping state of the elastic jacket 32. A conductive slip ring 17 is provided on the support shaft 2, and the conductive slip ring 17 is electrically connected to the electrorheological fluid 14. The setting of the conductive slip ring 17 can prevent the nut seat 31 from being constrained by the wire during rotation.

[0026] A support frame 4 is fixedly arranged on the workbench 1, and a plurality of cylinders 5 are fixedly arranged on the support frame 4, and the cylinders 5 correspond to the nut fixing mechanisms 3 one by one, and the output ends of the cylinders 5 are fixedly connected to the heat dissipation mechanism 6, and the heat dissipation mechanism 6 is fixedly arranged with a trimming knife 7, and the heat dissipation mechanism 6 is composed of a support seat 61, a temperature difference conductive plate 62, two heat conducting rods 63 and a plurality of heat dissipation fins 64, and the support seat 61 is fixedly arranged on the output end of the corresponding cylinder 5, and the support seat 61 is fixedly connected to the guide rod 11, and the temperature difference conductive plate 6 2 is fixedly arranged in the support base 61, two heat conducting rods 63 and a plurality of heat dissipating fins 64 are distributed and fixedly arranged on the upper and lower sides of the support base 61, the heat conducting rods 63 are in contact with the heat absorbing end of the temperature difference conductive plate 62, and the heat dissipating fins 64 are in contact with the heat releasing end of the temperature difference conductive plate 62, and the two heat conducting rods 63 are fixedly connected with the corresponding trimming knife 7. The temperature difference conductive plate 62 can utilize its own heat absorbing and releasing characteristics when it is powered on, and cooperate with the heat conducting rods 63 and the heat dissipating fins 64 to accelerate the heat dissipation of the trimming knife 7.

[0027] A self-locking transmission mechanism 8 matched with the support shaft 2 is arranged on the workbench 1, and the self-locking transmission mechanism 8 consists of a transmission chamber 81, a worm 82 and a worm wheel 83. The transmission chamber 81 is opened on the lower side of the nut seat 31, and the lower end of the support shaft 2 extends into the transmission chamber 81 and is fixedly sleeved with the worm wheel 83. The worm 82 is rotatably arranged in the transmission chamber 81, and the worm 82 is meshed with the worm wheel 83. The unfolded helix angle of the worm 82 is smaller than the friction angle between the worm 82 and the worm wheel 83, and one end of the worm 82 extends to the drive chamber 9 and is fixedly sleeved with the gear 10. Through the transmission cooperation of the worm 82 and the worm wheel 83, the rotation of the support shaft 2 can be controlled after the worm 82 is rotated under force. The unfolded helix angle design of the worm 82 can realize self-locking between the worm 82 and the worm wheel 83 to avoid the tediousness of manual locking.

[0028] A driving cavity 9 matching with the self-locking transmission mechanism 8 is provided on the workbench 1, and the output end of the self-locking transmission mechanism 8 extends to the corresponding driving cavity 9, and a gear 10 is arranged and fixedly sleeved therein. A guide rod 11 is slidably connected in the driving cavity 9, and one end of the guide rod 11 away from the driving cavity 9 is fixedly connected to the heat dissipation mechanism 6, and a plurality of telescopic tooth mechanisms 12 matching with the gear 10 are provided on the guide rod 11, and the telescopic tooth mechanism 12 is composed of a tooth cavity 121, a tooth block 122, an electromagnetic block 123 and a permanent magnet block 124, and the tooth cavity 121 is provided on the guide rod 11. The electromagnetic block 123 is embedded in the tooth cavity 121, the electromagnetic block 123 is fixedly connected to the permanent magnet block 124 through the reset spring 15, and the permanent magnet block 124 is slidably connected to the tooth cavity 121, the tooth block 122 is fixedly arranged on the permanent magnet block 124, and one end of the tooth block 122 passes through the tooth cavity 121 and meshes with the gear 10. Through the cooperation of the electromagnetic block 123, the permanent magnet block 124 and the reset spring 15, the tooth block 122 can be controlled to extend and retract, so that the tooth block 122 can mesh with the gear 10 for transmission as needed.

[0029] The driving chamber 9 is provided with a trigger mechanism 13 matched with the guide rod 11, and the trigger mechanism 13 is electrically connected with the telescopic tooth mechanism 12. The trigger mechanism 13 is composed of a guide seat 131, a first electrical contact piece 132 and a second electrical contact piece 133. The guide seat 131 is slidably arranged in the driving chamber 9, and the first electrical contact piece 132 is embedded in a side wall of the guide seat 131, and the second electrical contact piece 133 is embedded in the inner wall of the driving chamber 9, and the second electrical contact piece 133 is in contact with and connected to the first electrical contact piece 132, and the first electrical contact piece 132 is electrically connected with each electromagnetic block 123. The workbench 1 is provided with a first electrical contact piece 133 electrically connected with the second electrical contact piece 133. The power-off delay relay 16, which is connected in a manner such that the guide seat 131 is set, can cooperate with the up and down movement of the guide rod 11 to control the first electric contact piece 132 and the second electric contact piece 133 to automatically separate or connect, so that the electromagnetic block 123 can be automatically powered on and off in accordance with the trimming process. At the same time, the power-off delay relay 16 is set to delay the power-off state of the electromagnetic block 123, so that the electromagnetic block 123 can be automatically powered off in accordance with the trimming process, and then the tooth block 122 can automatically intervene after one side of the nut embryo 20 is cut off, and realize transmission in accordance with the return stroke of the guide rod 11, thereby realizing automatic rotation of the support shaft 2.

[0030] The operating principle of the present invention is now described as follows:

[0031] When performing the trimming operation, the extended ends of the nut embryos 20 that need trimming are inserted into the corresponding nut seats 31 in sequence. Under the elastic force of the elastic jacket 32, the nut embryos 20 can be clamped. Subsequently, the power supply is started by controlling the switch, so that current is passed through the electrorheological fluid 14, each electromagnetic block 123 and the temperature difference conductive plate 62. Two electrode plates are provided in the electrorheological fluid 14. After the two electrode plates in the electrorheological fluid 14 are passed through current to form an electric field, the electrorheological fluid 14 will change from liquid to solid, thereby locking the clamping state of the elastic jacket 32, so that the nut embryo 20 can be clamped more stably.

[0032] Subsequently, each cylinder 5 is started by controlling the travel switch, and each cylinder 5 will control each trimming knife 7 to move downward synchronously to perform trimming operation on each nut blank 20. After current is passed through the electromagnetic block 123, it will generate magnetic attraction to the permanent magnet block 124, thereby causing the tooth block 122 to contract and release the meshing state with the gear 10. At this time, the guide rod 11 cooperates with the downward movement of the trimming knife 7, and the gear 10 will not rotate. As the guide rod 11 slides down, the guide seat 131 will slide down synchronously, and the first electrical contact piece 132 and the second electrical contact piece 133 will be separated, so that each electromagnetic block 123 enters the power-off program. Due to the action of the power-off delay relay 16, each electromagnetic block 123 will delay power off. The time setting of the power-off delay relay 16 can be set according to the actual cutting stroke of the cylinder 5, so that the cylinder 5 can control the trimming knife 7 to cut the nut blank. When the tooth block 122 extends out and meshes with the gear 10 again, the tooth block 122 drives the worm 82 to rotate through the gear 10. Under the transmission of the worm gear 83, the support shaft 2 drives the nut seat 31 to rotate, and the nut seat 31 drives the nut body 20 thereon to rotate and change sides. After the side change is completed, the first electrical contact piece 132 and the second electrical contact piece 133 are re-connected, so that each electromagnetic block 123 re-introduces current. At this time, the tooth block 122 will flush and shrink, and then under the control of each cylinder 5, each trimming knife 7 can automatically trim the next side of the nut body 20.

[0033] During the trimming process, as the temperature difference conductive plate 62 is started, the heat absorbing end of the temperature difference conductive plate 62 will absorb the heat generated by the trimming knife 7 through the heat conducting rod 63, and the heat releasing end of the temperature difference conductive plate 62 will guide the absorbed heat out through each heat dissipation fin 64 to speed up the heat dissipation process of the trimming knife 7 and avoid wear of the trimming knife 7 due to excessive temperature.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional nut trimming machine, comprising a workbench (1), characterized in that: The workbench (1) is rotatably connected to a plurality of support shafts (2), and a nut fixing mechanism (3) is fixedly arranged on the support shaft (2); the workbench (1) is fixedly arranged to a support frame (4), and a plurality of cylinders (5) are fixedly arranged on the support frame (4), and the cylinders (5) correspond to the nut fixing mechanisms (3) one by one; the output ends of the cylinders (5) are fixedly connected to a heat dissipation mechanism (6), and a trimming knife (7) is fixedly arranged on the heat dissipation mechanism (6); the workbench (1) is provided with a self-locking transmission mechanism (8) matched with the support shaft (2); and the workbench (1) is provided with a self-locking transmission mechanism (8) matched with the self-locking transmission mechanism (8) A drive cavity (9) matched with a transmission mechanism (8), and an output end of the self-locking transmission mechanism (8) extends to the corresponding drive cavity (9) and is provided with a gear (10) which is fixedly sleeved therein, a guide rod (11) is slidably connected in the drive cavity (9), one end of the guide rod (11) away from the drive cavity (9) is fixedly connected to a heat dissipation mechanism (6), and a plurality of telescopic tooth mechanisms (12) matched with the gear (10) are provided on the guide rod (11), and a trigger mechanism (13) matched with the guide rod (11) is provided in the drive cavity (9), and the trigger mechanism (13) is electrically connected to the telescopic tooth mechanism (12).

2. A multifunctional nut trimming machine according to claim 1, characterized in that: The nut fixing mechanism (3) is composed of a nut seat (31) and an elastic jacket (32); the nut seat (31) is fixedly arranged at the upper end of the corresponding support shaft (2), and the elastic jacket (32) is fixedly sleeved in the nut seat (31); and the elastic jacket (32) is injected with electrorheological fluid (14).

3. The multifunctional nut trimming machine according to claim 1, characterized in that: The heat dissipation mechanism (6) comprises a support seat (61), a temperature difference conductive plate (62), two heat conducting rods (63) and a plurality of heat dissipation fins (64); the support seat (61) is fixedly arranged on the output end of the corresponding cylinder (5), and the support seat (61) is fixedly connected to the guide rod (11); the temperature difference conductive plate (62) is fixedly arranged in the support seat (61); the two heat conducting rods (63) and the plurality of heat dissipation fins (64) are distributed and fixedly arranged on the upper and lower sides of the support seat (61); the heat conducting rod (63) is in contact with the heat absorbing end of the temperature difference conductive plate (62), and the heat dissipation fins (64) are in contact with the heat releasing end of the temperature difference conductive plate (62); and the two heat conducting rods (63) are fixedly connected to the corresponding trimming knife (7).

4. The multifunctional nut trimming machine according to claim 2, characterized in that: The self-locking transmission mechanism (8) is composed of a transmission chamber (81), a worm (82) and a worm wheel (83); the transmission chamber (81) is opened on the lower side of the nut seat (31); the lower end of the support shaft (2) extends into the transmission chamber (81) and is fixedly sleeved with the worm wheel (83); the worm (82) is rotatably arranged in the transmission chamber (81), and the worm (82) and the worm wheel (83) are meshed; the unfolded helix angle of the worm (82) is smaller than the friction angle between the worm (82) and the worm wheel (83); one end of the worm (82) extends into the drive chamber (9) and is fixedly sleeved with the gear (10).

5. The multifunctional nut trimming machine according to claim 1, characterized in that: The telescopic tooth mechanism (12) is composed of a tooth cavity (121), a tooth block (122), an electromagnetic block (123) and a permanent magnet block (124); the tooth cavity (121) is opened on the guide rod (11), and the electromagnetic block (123) is embedded in the tooth cavity (121); the electromagnetic block (123) is fixedly connected to the permanent magnet block (124) via a reset spring (15), and the permanent magnet block (124) is slidably connected to the tooth cavity (121); the tooth block (122) is fixedly arranged on the permanent magnet block (124), and one end of the tooth block (122) passes through the tooth cavity (121) and meshes with the gear (10).

6. The multifunctional nut trimming machine according to claim 5, characterized in that: The trigger mechanism (13) is composed of a guide seat (131), a first electrical contact piece (132) and a second electrical contact piece (133); the guide seat (131) is slidably arranged in the driving cavity (9), and the first electrical contact piece (132) is embedded in a side wall of the guide seat (131); the second electrical contact piece (133) is embedded in an inner wall of the driving cavity (9), and the second electrical contact piece (133) is in contact with and connected to the first electrical contact piece (132); the first electrical contact piece (132) is electrically connected to each electromagnetic block (123); and a power-off delay relay (16) electrically connected to the second electrical contact piece (133) is arranged on the workbench (1).

7. The multifunctional nut trimming machine according to claim 1, characterized in that: A conductive slip ring (17) is provided on the support shaft (2), and the conductive slip ring (17) is electrically connected to the electrorheological fluid (14).

8. The multifunctional nut trimming machine according to claim 2, characterized in that: Two support blocks (18) are fixedly arranged on the lower side of the nut seat (31), and an annular sliding groove (19) matching with the two support blocks (18) is opened on the workbench (1).

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