A handheld anti-loosening pad automatic bending and bending relief device

Abstract

The present invention discloses a handheld anti-loosening pad automatic bending and bending relief device, which belongs to the field of engineering auxiliary devices, including a charging power supply, an integrated power system, a shell, a connecting seat, a lower clamping seat, an upper clamping seat, a locking finger, a die assembly, a start button and a pressure relief button. The charging power supply and the connecting seat are respectively arranged at the two ends of the shell, the integrated power system is arranged in the shell and the active end passes through the connecting seat, the connecting seat and the upper clamping seat are rotationally connected, and the other side is fixed by the locking finger. The handheld anti-loosening pad automatic bending and bending relief device of the present application solves the problem that although the anti-loosening pad can be bent or relieved on the market, the labor intensity is high, the efficiency is low, and it is greatly affected by the operating space; it requires high assembly and maintenance skills of on-site operators, and excessive hammering force and too many hammering times will cause certain damage to the pad, bolts, and nuts, and there is also a risk of destroying the bolt preload.

Description

Technical Field

[0001] The present application belongs to the field of engineering auxiliary devices, and specifically relates to a handheld anti-loosening pad automatic bending and bending relief device. Background Art

[0002] At present, when assembling brake discs for urban rail subways, bolts are usually bent with anti-loosening pads to achieve the anti-loosening function. When inspecting the brake discs, the bolt torque attenuation needs to be tested or the bolts need to be replaced. The brake disc assembly bolts are arranged in a circle. In order to ensure the stable anti-loosening effect during high-speed operation and braking, the anti-loosening pads are made of high-strength corrosion-resistant steel plates with a thickness of 1.4mm. Before assembly, the anti-loosening pads are pre-bent with a pre-bending angle of about 10°-20°. During the assembly and production process, there are currently two forms of bending the anti-loosening pads. One is to use a bending tool and a hand hammer to bend the anti-loosening pad so that the bent edge is close to the side plane of the nut; the other is to use manual pliers to press the bent edge against the nut. During maintenance operations, manual pliers are generally used to relieve the bending in the reverse direction.

[0003] Although these operation methods can bend or relieve the bending of anti-loosening pads, they are labor-intensive, inefficient, and greatly affected by the operating space; they require high assembly and maintenance skills of on-site operators, and excessive hammering force and too many hammering times will cause certain damage to the pads, bolts, and nuts, and there is also a risk of destroying the bolt preload. Therefore, a handheld anti-loosening pad automatic bending and bending relief device is proposed to solve the above problems. Summary of the Invention

[0004] In response to one or more of the above-mentioned defects or improvement needs in the prior art, the present invention provides a handheld automatic bending and bending relief device for bolt anti-loosening pads, which can bend and relieve the bending of bolt anti-loosening pads.

[0005] To achieve the above-mentioned object, the present invention provides a handheld anti-loosening pad automatic bending and bending relief device, comprising a charging power supply, an integrated power system, a housing, a connecting seat, a lower clamping seat, an upper clamping seat, a locking finger, a die assembly, a start button and a pressure relief button;

[0006] The charging power supply and the connecting seat are respectively arranged at the two ends of the shell, the integrated power system is arranged in the shell and the active end passes through the connecting seat, the connecting seat is rotatably connected to the upper card seat, and the other side is fixed by a locking finger, the lower card seat is arranged on the active end of the integrated power system, the die assembly is detachably arranged in the lower card seat and the upper card seat, and the start button and the pressure relief button are both embedded in the outer surface of the shell.

[0007] As a further improvement of the present application, the integrated power system includes a motor, a hydraulic pump, a closed hydraulic oil circuit system, a piston rod and a circuit board, all of which are arranged in a housing. The bottom of the circuit board is electrically connected to a charging power supply, the output end of the motor is connected to the hydraulic pump, one side of the closed hydraulic oil circuit system is connected to an end of the hydraulic pump away from the motor, and the other side is connected to the piston rod.

[0008] As a further improvement of the present application, the connecting seat is provided with two hinge holes, each of the hinge holes is provided with a pin shaft, an elastic retaining ring is inserted into the outer side of the pin shaft, and the two ends are respectively connected to the upper clamping seat and the locking finger through the pin shaft. A torsion spring is provided in each of the two hinge holes, and a limiting groove is provided inside the connecting seat. The internal thread of the connecting seat is connected to a locking screw that is tightly pressed against the integrated power system.

[0009] As a further improvement of the present application, the lower clamping seat is designed as a semicircular groove, and two positioning steel balls are provided on the annular center line of the groove. The two positioning steel balls are symmetrically arranged at a certain angle. The lower clamping seat is equipped with a spring that is tightly pressed against the positioning steel balls, and a limiting boss is provided at both ends of the semicircular groove of the lower clamping seat.

[0010] As a further improvement of the present application, the upper clamping seat is designed as a semicircular groove, and two positioning steel balls are provided on the annular center line of the groove. The two positioning steel balls are symmetrically arranged at a certain angle. The upper clamping seat is equipped with a spring 2 that is tightly pressed against the positioning steel ball 1. Both ends of the semicircular groove of the upper clamping seat are provided with limiting bosses 2, and a clamping groove is provided on the outer side of the upper clamping seat.

[0011] As a further improvement of the present application, the die assembly includes a bending die 1 and a bending die 2, which are detachably connected to the lower card seat and the upper card seat respectively;

[0012] The upper portion of the bending die is semicircular in design, the center line of the semicircular ring is provided with an annular groove that cooperates with the positioning steel ball in the lower clamping seat, the annular end is provided with a limiting concave platform that cooperates with the limiting boss, and the lower portion of the bending die is provided with a boss;

[0013] The upper part of the second bending die is designed to be semicircular, and the center line of the semicircular ring surface is provided with an annular groove 2 that cooperates with a positioning steel ball 1 in the upper clamping seat, and the annular end is provided with a limiting concave platform 2 that cooperates with a limiting boss 2, and the lower part of the second bending die is provided with a nut fitting surface.

[0014] As a further improvement of the present application, the die assembly includes a bending relief die 1 and a bending relief die 2, which are detachably connected to the lower card seat and the upper card seat respectively;

[0015] The upper part of the bending relief die is semicircular in design, and the center line of the semicircular ring is provided with an annular groove three that cooperates with the positioning steel ball in the lower holder, and the annular end is provided with a limiting concave platform three that cooperates with the limiting boss one. The lower part of the bending relief die is provided with a threaded fixing surface, which is provided with a serrated structure;

[0016] The upper part of the bending relief die 2 is semicircular in design, and the center line of the semicircular ring surface is provided with an annular groove 4 that cooperates with a positioning steel ball 1 in the upper clamping seat, and the annular end is provided with a limiting recess 4 that cooperates with a limiting boss 2. The lower part of the bending relief die 2 is provided with two legs, and a notch space for the nut to pass through is provided in the middle of the two legs, and the supporting surface of the legs is provided with a serrated structure 1.

[0017] In general, the above technical solutions conceived by this application have the following beneficial effects compared with the prior art:

[0018] (1). Small size, light weight, easy to carry;

[0019] (2) The overall structure is compact, beautiful, and easy to disassemble and repair;

[0020] (3) The device is low-noise and impact-free when in use, and bending or bending relief can be formed in one step without affecting or damaging the bolt preload;

[0021] (4) The front connecting seat can be rotated 180 degrees to meet the different bending angles of the pad.

[0022] (5) Die replacement is quick and easy;

[0023] (6) The die opening and closing control can automatically release pressure and reset, and the operation process is safe and reliable;

[0024] (7) It can work continuously, open and close many times, and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of this application;

[0026] Figure 2 This is a schematic diagram of the integrated power system structure of this application;

[0027] Figure 3 This is the control principle diagram of the integrated power system for this application;

[0028] Figure 4 This is a schematic diagram of an embodiment of the card holder unlocked state in this application;

[0029] Figure 5 This is a schematic diagram of the connection seat structure for this application;

[0030] Figure 6 This is a schematic diagram of the cross-sectional structure of the upper and lower decks of this application;

[0031] Figure 7 This is a structural diagram of the bending die of this application;

[0032] Figure 8 This is a schematic diagram of the structure of the bending die 2 of this application;

[0033] Figure 9 This is a structural diagram of the bending relief die of this application;

[0034] Figure 10 This is a schematic diagram of the structure of the bending relief die 2 of this application;

[0035] Figure 11 This is a structural diagram of the first embodiment of the present application;

[0036] Figure 12 This is a structural diagram of the second embodiment of this application.

[0037] In all the drawings, the same reference numerals represent the same technical features, specifically: 1. charging power supply; 2. integrated power system; 201. motor; 202. hydraulic pump; 203. closed hydraulic oil system; 204. piston rod; 205. circuit board; 2021. eccentric wheel; 2022. plunger; 2031. oil tank; 2032. hydraulic oil; 2033. filter; 2034. oil inlet valve; 2035. oil outlet valve; 2036. safety valve spring; 2037. safety valve core; 206. reducer; 207. oil cylinder; 208. piston spring; 3. housing; 4. connecting seat; 401. limit groove; 402. locking screw; 403. pin; 404. elastic retaining ring; 405. torsion spring; 5. lower clamping seat; 501. positioning steel ball; 502. spring 1; 503. limit Boss 1; 6, upper card seat; 601, positioning steel ball 1; 602, spring 2; 603, limiting boss 2; 604, card slot; 7, lock finger; 8, die assembly; 801, bending die 1; 8011, annular groove 1; 8012, limiting concave platform 1; 8013, boss; 802, bending die 2; 8021, annular groove 2; 8022, limiting concave platform 2; 801a, bending relief pressure Mold one; 8011a, annular groove three; 8012a, limiting concave platform three; 8013a, serrated structure; 802a, bending relief die two; 8021a, annular groove four; 8022a, limiting concave platform four; 8023a, support leg; 8024a, serrated structure one; 803, anti-loosening pad; 804, anti-loosening pad one; 805, spare nut; 9, start button; 10, pressure relief button. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0039] Example 1

[0040] Depend on Figure 1 A handheld anti-loosening pad automatic bending and bending relief device is provided, comprising a charging power supply 1, an integrated power system 2, a housing 3, a connecting seat 4, a lower clamping seat 5, an upper clamping seat 6, a locking finger 7, a die assembly 8, a start button 9, and a pressure relief button 10;

[0041] The charging power supply 1 is used to provide power for the integrated power system 2. The charging power supply generally adopts a lithium battery, and the battery can be removed and replaced with one button. The device housing 3 is a straight handle type and is provided with a ventilation structure.

[0042] The charging power supply 1 and the connecting seat 4 are respectively arranged at the two ends of the shell 3, the integrated power system 2 is arranged in the shell 3 and the active end passes through the connecting seat 4, the connecting seat 4 is rotatably connected to the upper card seat 6, and the other side is fixed by a locking finger 7, the lower card seat 5 is arranged on the active end of the integrated power system 2, and the die assembly 8 is detachably arranged in the lower card seat 5 and the upper card seat 6, the start button 9 and the pressure relief button 10 are both embedded in the outer surface of the shell 3, and the start button 9 and the pressure relief button 10 are arranged vertically.

[0043] Specifically, refer to Figure 2-3 The integrated power system 2 includes a motor 201, a hydraulic pump 202, a closed hydraulic oil circuit system 203, a piston rod 204, and a circuit board 205, all of which are disposed in a housing 3. The bottom of the circuit board 205 is electrically connected to the charging power source 1. The output end of the motor 201 is connected to the hydraulic pump 202. One side of the closed hydraulic oil circuit system 203 is connected to the end of the hydraulic pump 202 away from the motor 201, and the other side is connected to the piston rod 204.

[0044] The closed hydraulic oil circuit system 203 adopts the existing hydraulic oil circuit system, which consists of an eccentric wheel 2021; a plunger 2022; an oil tank 2031, hydraulic oil 2032, a filter 2033, an oil inlet valve 2034, an oil outlet valve 2035, a safety valve spring 2036, a safety valve core 2037, a reducer 206, an oil cylinder 207 and a piston spring 208.

[0045] In this embodiment, the control principle of the integrated power system 2 is as follows: the current is transmitted to the circuit board 205 through the rechargeable battery 1, and then the start and stop of the motor 201 is controlled by the circuit board 205. The front section of the motor 201 is connected to the reducer 206 to increase the torque of the motor 201, and the eccentric wheel 2021 is driven to rotate through the reducer 206 to control the up and down movement of the plunger 2022. When the plunger 2022 moves upward, the hydraulic oil 2032 in the oil tank 2031 will enter the plunger hole through the filter 2033 and the oil inlet valve 2034 under the action of vacuum suction. When the plunger 2022 is pressed down, the hydraulic oil in the plunger hole is strongly squeezed, and at this time the steel ball in the oil inlet valve 2034 is in a closed state. Therefore, the hydraulic oil can only push the steel ball from the oil outlet valve 2035 to enter the oil cylinder 207. At this time, the hydraulic oil in the oil cylinder 207 will push the piston rod 204 to move upward, and the device starts working. Use the safety valve spring 2036 to press down and adjust the sealing torque of the safety valve core 2037. When the pressure in the oil cylinder 207 reaches the pressure value set by the safety valve spring 2036, the safety valve core 2037 will move upward. At this time, the hydraulic oil in the oil cylinder 207 will quickly enter the safety valve hole under the pressure of the piston spring 208 to suspend the safety valve core 2037, and then enter the oil bag through the safety valve hole until the piston rod 204 completely returns to its initial state. The safety valve core 2037 has no impact force and will be closed under the pressure of the safety valve spring 2036. At this time, the device is finished working.

[0046] Specifically, refer to Figure 4-6 The connecting seat 4 is provided with two hinge holes, and the two hinge holes are arranged in high and low arrangements. A pin shaft 403 is provided in each hinge hole, and an elastic retaining ring 404 is inserted into the outer side of the pin shaft 403. The two ends are rotatably connected to the upper clamping seat 6 and the lock finger 7 through the pin shaft 403. A torsion spring 405 is provided in the two hinge holes. When the die is replaced, the opening and closing of the upper clamping seat 6 can be automatically tightened, which is convenient and reliable. A limiting groove 401 is provided inside the connecting seat 4, and the direction of the connecting seat 4 can be rotated and adjusted by 180°. The internal thread of the connecting seat 4 is connected to a locking screw 402 that is tightly against the integrated power system 2 for fixing the direction of the connecting seat 4.

[0047] Specifically, refer to Figure 4-6 The lower card seat 5 is designed with a semicircular groove. Two positioning steel balls 501 are set on the annular center line of the groove. The two positioning steel balls 501 are symmetrically arranged at a certain angle. The mounting hole of the positioning steel ball 501 on the lower card seat 5 is equipped with a spring 502 that is tightly against the positioning steel ball 501. Both ends of the semicircular groove of the lower card seat 5 are provided with a limiting boss 503 to ensure that the die assembly 8 is firmly fixed.

[0048] Specifically, refer to Figure 4-6The upper card seat 6 is designed with a semicircular groove, and two positioning steel balls 601 are set on the annular center line of the groove. The two positioning steel balls 601 are symmetrically arranged at a certain angle. The mounting hole of the positioning steel ball 601 on the upper card seat 6 is equipped with a spring 2 602 that is tightly against the positioning steel ball 1 601. Both ends of the semicircular groove of the upper card seat 6 are provided with a limiting boss 2 603 to ensure that the die assembly 8 is firmly fixed. A card slot 604 is provided on the outer side of the upper card seat 6 to cooperate with the locking finger 7 to lock the upper card seat 6 and the connecting seat 4.

[0049] Specifically, refer to Figure 7-8 The die assembly 8 includes a bending die 1 801 and a bending die 2 802, which are detachably connected to the lower card seat 5 and the upper card seat 6 respectively;

[0050] The upper part of the bending die 801 is semicircular in design. The center line of the semicircular ring is provided with an annular groove 8011 that cooperates with the positioning steel ball 501 in the lower clamping seat 5. The end of the ring is provided with a limiting concave platform 8012 that cooperates with the limiting boss 503. The lower part of the bending die 801 is provided with an inclined boss 8013 to ensure that the pre-bent pad is folded from the root;

[0051] The upper part of the bending die 2 802 is designed to be semicircular. The center line of the semicircular ring surface is provided with an annular groove 2 8021 that cooperates with the positioning steel ball 1 601 in the upper clamping seat 6. The annular end is provided with a limiting recess 2 8022 that cooperates with the limiting boss 2 603. The lower part of the bending die 2 802 is provided with a nut fitting surface as a bending force fixing surface.

[0052] The handheld anti-loosening pad automatic bending and bending relief device of this application refers to Figure 11 When using this device to bend the anti-loosening pad 803, press the locking finger 7, the upper clamping seat 6 pops open, and the bending die 1 801 is installed into the lower clamping seat 5. The bending die 2 802 is installed into the upper clamping seat 6, and the upper clamping seat 6 and the locking finger 7 are clamped together. The handheld device is placed horizontally, so that the pressing surface of the bending die 2 802 contacts the side of the nut that the bending edge nut contacts. The bending die 1 801 is located on the outside of the pre-bent anti-loosening pad 803. Press the start button 9 and use the charging power supply 1 to drive the integrated power system 2. The motor 201 in the system works on the built-in hydraulic pump 202, and the hydraulic pump 202 provides high-pressure oil to the closed hydraulic oil circuit system 203 to push the piston rod 204 to work. The piston rod 204 is threadedly connected to the lower clamping seat 5. The lower clamping seat 5 drives the lower part of the bending die 801 to fold the bending edge along the pre-folding line from the root. The device continuously applies pressure so that the bending edge fits tightly against the nut. After the folded edge is in place, the device automatically releases pressure or manually releases pressure, and the bending work is completed.

[0053] Example 2

[0054] Reference Figure 9-10The die assembly 8 includes a bending relief die 1 801a and a bending relief die 2 802a, which are detachably connected to the lower card seat 5 and the upper card seat 6 respectively;

[0055] Reference Figure 9 The upper part of the bending relief die 801a is semicircular in design. The center line of the semicircular ring is provided with an annular groove 8011a that cooperates with the positioning steel ball 501 in the lower seat 5. The annular end is provided with a limiting concave platform 8012a that cooperates with the limiting boss 503. The lower part of the bending relief die 801a is provided with a threaded fixing surface, which is provided with a serrated structure 8013a to ensure that the device can firmly fix the spare nut 805 when the bending is relieved;

[0056] Reference Figure 10 The upper part of the bending relief die 802a is semicircular in design, and the center line of the semicircular ring is provided with an annular groove 8021a four which cooperates with the positioning steel ball 601 in the upper clamping seat 6, and the annular end is provided with a limiting recessed platform 8022a four which cooperates with the limiting boss 603. The lower part of the bending relief die 802a is provided with two legs 8023a, and a notch space for the nut to pass through is provided in the middle of the two legs 8023a. Before bending relief, the supporting surface of the legs 8023a can be ensured to clamp the parts of the nuts on both sides of the folded pad that are not fitted with the nuts. The supporting surface of the legs 8023a is provided with a serrated structure 8024a to increase friction.

[0057] The handheld anti-loosening pad automatic bending and bending relief device of this application refers to Figure 12 When using this device to bend and relieve anti-loosening pad 1 804, press the locking finger 7, the upper clamping seat 6 pops open, the bending relief die 1 801a is installed into the lower clamping seat 5, and the bending relief die 2 802a is installed into the upper clamping seat 6, and the upper clamping seat 6 and the locking finger 7 are clamped together. The spare nut 805 is screwed onto the bending nut. The handheld device is placed horizontally, so that the pressing surface of the bending relief die 1 801a contacts one side of the spare nut 805. The two lower legs 8023a of the bending relief die 2 802a are located on both sides of the folded anti-loosening pad 1 804. Press the start button 9 and use the charging power supply 1 to drive the integrated power system 2. The motor 201 in the system works on the built-in hydraulic pump 202, and then the hydraulic pump 202 provides high-pressure oil to the closed hydraulic oil circuit system 203 to push the piston rod 204 to work. The piston rod 204 is threadedly connected to the lower seat 5. The lower seat 5 drives the lower support leg 8023a of the bending relief die 802a to separate the bent edge from the nut fitting surface. The device continuously applies pressure to increase the angle between the bent edge and the nut fitting surface. After the folded edge is in place, the device manually releases pressure and the bending relief work is completed.

[0058] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A handheld anti-loosening pad automatic bending and bending relief device, characterized in that: It comprises a charging power source (1), an integrated power system (2), a housing (3), a connecting seat (4), a lower card seat (5), an upper card seat (6), a locking finger (7), a die assembly (8), a start button (9) and a pressure relief button (10); The charging power source (1) and the connecting seat (4) are respectively arranged at two ends of the housing (3); the integrated power system (2) is arranged in the housing (3) and the active end passes through the connecting seat (4); the connecting seat (4) is rotatably connected to the upper card seat (6), and the other side is fixed by a locking finger (7); the lower card seat (5) is arranged on the active end of the integrated power system (2); the die assembly (8) is detachably arranged in the lower card seat (5) and the upper card seat (6); the start button (9) and the pressure relief button (10) are both embedded in the outer surface of the housing (3); The die assembly (8) includes a bending relief die (801a) and a bending relief die (802a). The upper portion of the bending relief die (801a) is semicircular in design. The center line of the semicircular ring surface is provided with an annular groove (8011a) that cooperates with the positioning steel ball (501) in the lower holder (5). The annular end is provided with a limiting concave platform (8012a) that cooperates with the limiting boss (503). The lower portion of the bending relief die (801a) is provided with a threaded fixing surface, which is provided with a serrated structure (8013a). The upper part of the bending relief die 2 (802a) is semicircular in design, and the center line of the semicircular ring surface is provided with an annular groove 4 (8021a) that cooperates with the positioning steel ball 1 (601) in the upper clamping seat (6), and the annular end is provided with a limiting recess 4 (8022a) that cooperates with the limiting boss 2 (603). The lower part of the bending relief die 2 (802a) is provided with two supporting legs (8023a), and a notch space for the nut to pass through is provided in the middle of the two supporting legs, and the supporting surface of the supporting leg (8023a) is provided with a serrated structure 1 (8024a).

2. The handheld anti-loosening pad automatic bending and bending relief device according to claim 1 is characterized in that: The integrated power system (2) comprises a motor (201), a hydraulic pump (202), a closed hydraulic oil circuit system (203), a piston rod (204) and a circuit board (205), all of which are arranged in a housing (3); the bottom of the circuit board (205) is electrically connected to a charging power source (1); the output end of the motor (201) is connected to the hydraulic pump (202); one side of the closed hydraulic oil circuit system (203) is connected to one end of the hydraulic pump (202) away from the motor (201), and the other side is connected to the piston rod (204).

3. The handheld anti-loosening pad automatic bending and bending relief device according to claim 1 is characterized in that: The connecting seat (4) is provided with two hinge holes, each of which is provided with a pin shaft (403), an elastic retaining ring (404) is inserted on the outer side of the pin shaft (403), and the two ends are rotatably connected to the upper clamping seat (6) and the locking finger (7) through the pin shaft (403), and a torsion spring (405) is provided in each of the two hinge holes. A limiting groove (401) is provided inside the connecting seat (4), and the internal thread of the connecting seat (4) is connected to a locking screw (402) that is tightly pressed against the integrated power system (2).

4. The handheld anti-loosening pad automatic bending and bending relief device according to claim 1 is characterized in that: The lower card seat (5) is designed as a semicircular groove, and two positioning steel balls (501) are arranged on the annular center line of the groove. The two positioning steel balls (501) are symmetrically arranged at a certain angle. The lower card seat (5) is equipped with a spring (502) that is tightly pressed against the positioning steel balls (501). Both ends of the semicircular groove of the lower card seat (5) are provided with a limiting boss (503).

5. The handheld anti-loosening pad automatic bending and bending relief device according to claim 4 is characterized in that: The upper clamping seat (6) is designed as a semicircular groove, and two positioning steel balls (601) are arranged on the annular center line of the groove. The two positioning steel balls (601) are symmetrically arranged at a certain angle. The upper clamping seat (6) is equipped with a spring (602) that is tightly pressed against the positioning steel ball (601). Both ends of the semicircular groove of the upper clamping seat (6) are provided with a limiting boss (603), and a clamping groove (604) is provided on the outer side of the upper clamping seat (6).

6. The handheld anti-loosening pad automatic bending and bending relief device according to claim 5 is characterized in that: The die assembly (8) comprises a bending die 1 (801) and a bending die 2 (802), which are detachably connected to the lower card seat (5) and the upper card seat (6) respectively; The upper portion of the bending die (801) is semicircular in design, and the center line of the semicircular ring is provided with an annular groove (8011) that cooperates with the positioning steel ball (501) in the lower clamping seat (5), and the annular end is provided with a limiting concave platform (8012) that cooperates with the limiting boss (503), and the lower portion of the bending die (801) is provided with a boss (8013); The upper part of the bending die 2 (802) is designed to be semicircular, and the center line of the semicircular ring surface is provided with an annular groove 2 (8021) that cooperates with the positioning steel ball 1 (601) in the upper clamping seat (6), and the annular end is provided with a limiting concave platform 2 (8022) that cooperates with the limiting boss 2 (603), and the lower part of the bending die 2 (802) is provided with a nut fitting surface.

Images