An extra-long bolt deburring device

Abstract

The present invention relates to the technical field of machine tool accessories, and specifically discloses an extra-long bolt deburring device, comprising a machine body and a step-by-step loading unit located at the rear side of the machine body, the step-by-step loading unit comprising a loading assembly and an adaptive assembly located at the unloading end of the loading assembly. In the present application, an integrated coaxial locking is performed between the cutting blade, the guide assembly and the left loading rack through a locking pin, thereby eliminating the position deviation when the cutting blade and the loading rack are independently installed, ensuring that the axis of the cutting blade is strictly coaxial with the axis of the bolt, achieving a one-time insertion and automatic calibration effect, thereby greatly improving the coaxiality between the cutting blade and the bolt, and forming a rigid force transmission path starting from the bolt, passing through the guide plate, the connecting frame, the locking pin, the locking sleeve, and finally to the cutting blade, eliminating radial clearance, and avoiding uneven cutting of the bolt thread by the cutting blade when the cutting blade rotates at high speed due to axis offset, resulting in burr residue or thread damage.

Description

Technical Field

[0001] The present invention relates to the technical field of machine tool accessories, and more particularly to a deburring device for an extra-long bolt. Background Art

[0002] At present, the existing technology for deburring overlong bolts usually uses a chuck fixture to clamp the bolt to keep it stationary, and uses a cylinder to push the bolt at a uniform speed close to the high-speed rotating cutting blade (a sleeve with a spiral cutting edge processed on the inner wall). The rotation center of the chuck fixture is coaxial with the rotation center of the high-speed rotating cutting blade to ensure the coaxiality of the bolt and the cutting blade. The bolt thread is then processed using the inner wall of the cutting blade. This technology can remove burrs from overlong bolts and is also widely used in related production fields, but it still has certain defects:

[0003] During the process of approaching the bolt to the high-speed rotating cutting blade and deburring, the coaxiality between the bolt and the cutting blade depends on the coaxiality of the rotation center of the chuck fixture and the rotation center of the cutting blade. In actual operation, in order to achieve high-precision coaxiality between the rotation axis of the chuck fixture and the rotation axis of the cutting blade, the installation and debugging process is extremely complicated and time-consuming, and may cause a decrease in accuracy due to wear and affect the coaxiality. As a result, there is a lack of effective measures to ensure that the bolt and the cutting blade always remain coaxial.

[0004] Once coaxiality deviates, the contact pressure between the inner wall of the cutting insert and the bolt thread surface will be unevenly distributed. In areas with large coaxiality deviation, the contact pressure between the deburring component and the thread surface may be too high, resulting in excessive burr removal in that area, and even damage to the thread itself (for example, changing the thread profile angle, resulting in uneven clearance when the thread is fitted), affecting the strength and precision of the bolt. In areas with small coaxiality deviation or reverse deviation, the contact pressure is insufficient, making it impossible to completely remove the burr, resulting in some burrs remaining. This uneven deburring effect seriously affects the surface quality of the bolt thread, making it difficult to meet the requirements of high-precision assembly.

[0005] Therefore, how to achieve efficient and accurate deburring of extra-long bolts has become a technical problem that needs to be solved urgently in this field. Summary of the Invention

[0006] The present invention provides an extra-long bolt deburring device to solve the above technical problems.

[0007] The present invention provides an extra-long bolt deburring device, comprising a machine body and a step-by-step loading unit located at the rear side of the machine body, the step-by-step loading unit comprising a loading assembly and an adaptive assembly located at the unloading end of the loading assembly, a driving member and a support plate are fixedly installed on the top of the machine body, a cylinder is fixedly installed on the right side of the support plate, a cutting blade for performing bolt deburring operations is fixedly installed on the output end of the driving member, two front-to-back symmetrical guide rods are jointly installed between the support plate and the driving member, and the device is characterized in that a clamping portion, a locking portion and a guide portion are sequentially provided on the outer side of the guide rod from right to left.

[0008] The guide part includes a guide assembly and a control assembly for controlling the guide assembly. The guide assembly is used to clamp the top bolt that falls on the top of the adaptive assembly as the clamping part moves to the left and limit the bolt. The locking part includes a locking assembly for coaxially locking the guide assembly, the adaptive assembly and the cutting blade as an integrated whole. A pushing assembly for pushing the locking assembly is provided between the locking assembly and the clamping part.

[0009] Furthermore, the adaptive component includes two loading racks fixedly installed on the front side of the loading component, a slide rail is fixedly installed on the front side of the right loading rack, an adjustment bracket is slidably installed on the front side of the slide rail, the adjustment bracket and the left loading rack are used together to support the bolts, and a strong spring is arranged between the adjustment bracket and the right inner wall of the slide rail, and the strong spring is used to pull the adjustment bracket close to the right inner wall of the slide rail.

[0010] Furthermore, the guide assembly includes a mounting frame fixedly installed at the bottom of the left loading rack, and two front-to-back symmetrical rotating shafts are rotatably installed on the left side of the mounting frame. The left end of the rotating shaft passes through the mounting frame and is fixedly installed with a connecting frame. The two connecting frames are symmetrical to each other, and a guide plate is fixedly installed on the adjacent side of the two connecting frames, and a number of ball bearings are rotatably installed on the inner wall of the guide plate to ensure the freedom of the bolt in the left and right directions.

[0011] Furthermore, the locking assembly includes two fixed plates fixedly installed at the bottom of the left material loading rack and symmetrically front and back, and respectively fixedly mounted on the two guide rods. A return spring 1 that is slidably mounted on the guide rod is fixedly installed on the right side of the fixed plate, and a return plate slidably connected to the guide rod is installed on the right end of the two return springs.

[0012] Furthermore, two locking pins symmetrically arranged front and back are fixedly installed on the left side of the reset plate, and a locking sleeve mounted on the outside of the cutting blade is fixedly installed on the right side of the driving member. The locking sleeve is connected to the cutting blade through a bearing, and pin holes are provided on the locking sleeve, the connecting frame and the loading frame.

[0013] Furthermore, the control component includes a gear connected to the rotating shaft key, and a rack is meshed between the two gears. The rack is slidably connected to a sliding groove opened on the right inner wall of the mounting frame through a slider, and a thrust spring is arranged between the rack and the right inner wall of the mounting frame.

[0014] Furthermore, a control rod is fixedly installed at the bottom of the rack, and a trapezoidal plate that matches the control rod is fixedly installed on the left side of the reset plate through a fixing rod.

[0015] Furthermore, the clamping part includes a driving frame fixedly mounted on the output end of the cylinder and slidably connected to the two guide rods, a mounting plate is fixedly mounted on the inner wall of the driving frame, a claw for clamping the bolt end is hinged on the left side of the mounting plate, a hinged sleeve is hinged between the claws, a reset rod for resisting the bolt end is fixedly mounted on the inner wall of the hinged sleeve, the right end of the reset rod slides through the mounting plate and is fixedly mounted with a circular plate, and a reset spring 2 arranged on the outside of the reset rod is jointly installed between the circular plate and the mounting plate.

[0016] Furthermore, the pushing assembly includes two mounting rods fixedly mounted on the left side of the driving frame and symmetrical in front and back, and a push plate for pushing the reset plate is mounted on the left ends of the two mounting rods.

[0017] The beneficial effects of the present invention are:

[0018] In the present application, the cutting blade, the guide assembly and the left-side carrier are coaxially locked in an integrated manner through a locking pin, thereby eliminating the position deviation of the cutting blade and the carrier when they are installed independently, ensuring that the axis of the cutting blade is strictly coaxial with the axis of the bolt, and achieving the effect of one-time insertion and automatic calibration, thereby greatly improving the coaxiality between the cutting blade and the bolt, and forming a rigid force transmission path starting from the bolt, passing through the guide plate, the connecting frame, the locking pin, the locking sleeve, and finally to the cutting blade, eliminating radial clearance, avoiding uneven cutting of the bolt thread during high-speed rotation of the cutting blade due to axis offset, resulting in residual burrs or thread damage, and significantly improving the deburring accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the support plate, guide rod, cylinder, blanking rack and cutting blade part of the present invention.

[0021] Figure 3 It is a partial three-dimensional structural schematic diagram of the step-by-step loading unit of the present invention.

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the material carrier, slide rail, adjustment bracket and cutting blade part of the present invention.

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the fixing plate, locking sleeve, reset spring and reset plate of the present invention.

[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the mounting rod, push plate, material carrier and bolt part of the present invention.

[0025] Figure 7 This invention Figure 6 A partial enlarged view of part A.

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the mounting frame, rotating shaft, connecting frame and guide plate of the present invention.

[0027] Figure 9 It is a schematic diagram of the three-dimensional structure of the control rod, rack, gear and mounting frame of the present invention.

[0028] In the figure: 1. Body; 2. Step-type loading unit; 21. Loading assembly; 22. Adaptive assembly; 221. Loading rack; 222. Slide rail; 223. Adjustment bracket; 3. Bolt; 4. Mounting seat; 5. Guide portion; 51. Guide assembly; 511. Mounting frame; 512. Rotating shaft; 513. Connecting frame; 514. Guide plate; 52. Control assembly; 521. Control lever; 522. Rack; 523. Gear; 524. Trapezoidal plate; 6. Locking portion; 61. Locking assembly ;611, reset plate;612, locking pin;613, reset spring 1;614, fixing plate;615, pin hole;616, locking sleeve;62, pushing assembly;621, mounting rod;622, push plate;7, clamping part;71, driving frame;72, mounting plate;73, claw;74, hinge sleeve;75, reset rod;76, reset spring 2;77, circular plate;8, support plate;9, guide rod;10, cylinder;11, unloading frame;12, cutting blade;13, driving part. DETAILED DESCRIPTION

[0029] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that these embodiments are discussed to enable those skilled in the art to better understand and implement the subject matter described herein. The functions and arrangements of the elements discussed may be varied without departing from the scope of protection of this specification. Various examples may omit, substitute, or add various processes or components as needed. In addition, features described with respect to some examples may also be combined in other examples.

[0030] See Figure 1 、 Figure 2 and Figure 3In this embodiment, a deburring device for extra-long bolts is proposed, including a body 1 and a step-by-step loading unit 2 located at the rear side of the body 1 for loading bolts 3. The step-by-step loading unit 2 includes a loading component 21 and an adaptive component 22 located in front of the loading component 21. A driving member 13 and a support plate 8 are fixedly installed on the top of the body 1 through a mounting seat 4. A cylinder 10 is fixedly installed on the right side of the support plate 8. A cutting blade 12 for deburring the thread of the bolt 3 is fixedly installed on the output end of the driving member 13. Two front-to-back symmetrical guide rods 9 are installed between the support plate 8 and the driving member 13. A clamping portion 7, a locking portion 6 and a guide portion 5 are sequentially provided on the outer side of the guide rod 9 from right to left.

[0031] See Figure 1 、 Figure 2 and Figure 3 The guide portion 5 includes a guide component 51 for first clamping the top bolt 3 that falls on the top of the adaptive component 22 as the clamping portion 7 moves left, and limiting the bolt 3 in the circumferential and front-to-back directions, and a control component 52 for controlling the guide component 51. The locking portion 6 includes a locking component 61 for moving left with the clamping portion 7 and, after guiding the bolt 3 in the guide component 51, horizontally penetrating the guide component 51 and the adaptive component 22, and performing integrated coaxial locking on the guide component 51, the adaptive component 22 and the cutting blade 12.

[0032] See Figure 3 and Figure 4 The adaptive component 22 includes two loading racks 221 fixedly installed on the front side of the loading component 21, a slide rail 222 is fixedly installed on the front side of the right loading rack 221, and an adjusting bracket 223 is slidably installed on the front side of the slide rail 222. The adjusting bracket 223 and the left loading rack 221 are used together to support the bolt 3. A strong spring (not shown in the figure) is arranged between the adjusting bracket 223 and the right inner wall of the slide rail 222. The strong spring is used to pull the adjusting bracket 223 close to the right inner wall of the slide rail 222.

[0033] It should be noted that the drive element 13 uses a servo motor, and its speed can be adjusted according to the size and number of burrs. If the burrs are large and numerous, a higher speed and power (1500-2500 r / min) are required for quick and effective removal; if the burrs are small and few, a lower speed (1000-1500 r / min) can be selected. The above-mentioned loading assembly 21 is common knowledge to those skilled in the art and will not be described in detail in this application.

[0034] During specific use, the loading assembly 21 transports the bolt 3 to the top of the two carriers 221, and then the bolt 3 slides forward along the top surface of the carrier 221 and falls on the top of the adjustment bracket 223, thereby achieving preliminary positioning and support for the bolt 3, ensuring that the bolt 3 is coaxial with the cutting blade 12.

[0035] See Figure 4 、 Figure 5 and Figure 6 The clamping part 7 includes a driving frame 71 fixedly installed at the output end of the cylinder 10 and slidingly connected to the two guide rods 9. A pushing component 62 for pushing the locking component 61 to move horizontally is provided between the locking component 61 and the clamping part 7. After the pushing component 62 pushes the locking component 61 to lock the guide component 51, the adaptive component 22 and the cutting blade 12, the clamping part 7 contacts and squeezes the end of the bolt 3 to clamp the end of the bolt 3, and finally pushes the bolt 3 and the adaptive part to move close to the cutting blade 12 to perform the deburring operation of the bolt 3.

[0036] See Figure 4 、 Figure 5 and Figure 6 The pushing assembly 62 includes two mounting rods 621 fixedly mounted on the left side of the driving frame 71 and symmetrically front and back, and the left ends of the two mounting rods 621 are jointly mounted with a pushing plate 622 for pushing the reset plate 611. The locking assembly 61 includes two fixed plates 614 fixedly mounted on the bottom of the left loading rack 221 and symmetrically front and back, and respectively fixedly sleeved on the outside of the two guide rods 9. The right side of the fixed plate 614 is fixedly mounted with a reset spring 613 sleeved on the outside of the corresponding guide rod 9. The right ends of the two reset springs 613 are jointly mounted with a reset plate 611, and the reset plate 611 is slidably mounted on the outside of the two guide rods 9.

[0037] During specific use, after the bolt 3 falls on the top of the adjustment bracket 223, the cylinder 10 is started to push the driving frame 71 to move to the left along the guide rod 9. As the driving frame 71 moves to the left, the clamping part 7 will gradually approach the end of the bolt 3. At the same time, the push plate 622 gradually approaches and contacts the reset plate 611, and then pushes the reset plate 611 to move to the left.

[0038] See Figure 5 、 Figure 8 and Figure 9 The guide assembly 51 includes a mounting frame 511 fixedly mounted on the bottom of the left material carrier 221. Two front-to-back symmetrical rotating shafts 512 are rotatably mounted on the left side of the mounting frame 511. The left end of the rotating shaft 512 passes through the mounting frame 511 and is fixedly mounted with a connecting frame 513. The two connecting frames 513 are symmetrical to each other, and a guide plate 514 is fixedly mounted on one side of the two connecting frames 513. A plurality of balls are rotatably mounted on the inner wall of the guide plate 514. When the guide plate 514 clamps the bolt 3, the balls contact the bolt 3, so as to limit the bolt 3 in the circumferential and front-to-back directions without hindering the left and right movement of the bolt 3.

[0039] It should be noted that the guide plate 514 is an arc-shaped plate (the curvature radius matches the bolt shank), and 9 balls are evenly distributed on the inner wall to form a rolling friction pair.

[0040] See Figure 5 、 Figure 8 and Figure 9 The control component 52 includes a gear 523 fixedly mounted on the outside of the rotating shaft 512, and a rack 522 is meshed between the two gears 523. The rack 522 is slidably connected to the sliding groove opened on the right inner wall of the mounting frame 511 through a slider, and a thrust spring (not shown in the figure) is provided between the rack 522 and the right inner wall of the mounting frame 511 to push the rack 522 downward so that the slider contacts the bottom wall of the sliding groove, driving the rack 522 to drive the gear 523 to control the guide plate 514 to clamp the bolt 3.

[0041] See Figure 5 、 Figure 8 and Figure 9 A control rod 521 is fixedly installed at the bottom of the rack 522, and a trapezoidal plate 524 that cooperates with the control rod 521 is fixedly installed on the left side of the reset plate 611 through a fixed rod. The slope on the right side of the trapezoidal plate 524 is used to reset the extrusion control rod 521 along with the locking assembly 61 after the deburring operation is completed, driving the guide assembly 51 to release the clamping of the bolt 3.

[0042] During specific use, when the reset plate 611 is pushed to the left by the push plate 622, the trapezoidal plate 524 first gradually disengages from the control rod 521. As the trapezoidal plate 524 disengages from the control rod 521, the rack 522 moves downward under the action of the thrust spring, and the gear 523 drives the rotating shaft 512 to rotate, driving the top ends of the two connecting frames 513 to approach each other, so that the two guide plates 514 rotate and close synchronously toward the side close to the bolt 3 until the balls on the inner wall of the guide plate 514 contact the rod of the bolt 3. Since the balls can rotate freely, rolling friction is formed during contact, which can not only limit the bolt 3 circumferentially (limit rotation) and in the front and rear directions (limit radial swing), but also allow the bolt 3 to slide axially (left and right), avoiding the rigid clamping from hindering the feeding of subsequent deburring operations.

[0043] See Figure 4 、 Figure 5 、 Figure 6 and Figure 8 The locking assembly 61 also includes two locking pins 612 fixedly installed on the left side of the reset plate 611 and symmetrically arranged front to back. A locking sleeve 616 is fixedly installed on the right side of the driving member 13 and is sleeved on the outside of the cutting blade 12. The locking sleeve 616 is connected to the cutting blade 12 through a bearing. Pin holes 615 are provided on the locking sleeve 616, the connecting frame 513 and the left side carrier 221. There are two pin holes 615 on the carrier 221 and the locking sleeve 616, and the three pin holes 615 on the same side correspond to each other.

[0044] When in use, the reset plate 611 will also synchronously drive the locking pin 612 to move during its movement. As the reset plate 611 continues to move left, after the guide plate 514 closes the clamping bolt 3, the reset plate 611 continues to drive the two locking pins 612 to move left, causing the locking pins 612 to pass through the corresponding pin holes 615 on the left carrier 221, the connecting frame 513 and the locking sleeve 616 from right to left. While rigidly locking the guide assembly 51, the cutting blade 12, the guide assembly 51 and the left carrier 221 are integrated and coaxially locked, eliminating the position deviation of the cutting blade 12 and the carrier 221 when they are installed independently. Differences (such as processing errors, assembly clearances, wear after long-term use, etc.) are eliminated to ensure that the axis of the cutting blade 12 is strictly coaxial with the axis of the bolt 3, and the effect of one-time insertion and automatic calibration is achieved, thereby greatly improving the coaxiality between the cutting blade 12 and the bolt 3, and forming a rigid force transmission path starting from the bolt 3, passing through the guide plate 514, the connecting frame 513, the locking pin 612, the locking sleeve 616, and finally transmitted to the cutting blade 12, eliminating radial clearance, avoiding uneven cutting of the bolt 3 thread during high-speed rotation of the cutting blade 12 due to axis offset, resulting in burr residue or thread damage, and significantly improving the deburring accuracy.

[0045] See Figure 6 and Figure 7 The clamping portion 7 also includes a mounting plate 72 fixedly mounted on the inner wall of the driving frame 71. The left side of the mounting plate 72 is hinged with a plurality of claws 73 for clamping the end of the bolt 3. A hinge sleeve 74 is hinged between the plurality of claws 73. A reset rod 75 for resisting the end of the bolt 3 is fixedly mounted on the inner wall of the hinge sleeve 74. The right end of the reset rod 75 slides through the mounting plate 72 and is fixedly mounted with a circular plate 77. A reset spring 2 76 is installed between the circular plate 77 and the mounting plate 72 and is sleeved on the outside of the reset rod 75.

[0046] It should be noted that the elastic coefficient of the strong spring is greater than the elastic coefficient of the second return spring 76, the number of the claws 73 is 3, and the inner side is processed with anti-slip teeth.

[0047] When the locking cam 75 is in the unlocking state, the locking cam 71 is in the unlocking state, and the locking cam 71 is in the unlocking state, so that the locking cam 71 is locked and the locking cam 71 is in the unlocking state.

[0048] Next, the cutting blade 12 is driven to rotate at high speed by the driving member 13, and at the same time, the driving frame 71 continues to push the bolt 3 that has been clamped, limited and guided, and coaxially corrected to move to the left to contact the high-speed rotating cutting blade 12, and then gradually extends into the interior of the cutting blade 12 to deburr the entire external thread of the bolt 3.

[0049] It should be noted that the length of the cutting blade 12 is greater than the length of the bolt 3, and the inner wall of the cutting blade 12 is processed with a spiral cutting edge that is opposite to the thread of the bolt 3 (the cutting edge angle is 30°-60°, and the pitch is consistent with the thread of the bolt 3). The cutting blade 12 is rotated to shear and cut the thread surface of the bolt 3 to remove burrs.

[0050] See Figure 1 and Figure 2 A blanking rack 11 is fixedly mounted on the top of the machine body 1 and is located in front of the mounting seat 4 and is used to cooperate with the external blanking assembly.

[0051] During specific use, after the deburring operation is completed, the output end of the control cylinder 10 contracts, driving the drive plate to move to the right for reset. During the entire reset process, the strong spring first gradually resets, driving the adjusting bracket 223 to move right, thereby driving the processed bolt 3 to move to the right for discharge. When the bolt 3 is completely pulled out of the cutting blade 12, the reset plate 611 continues to reset and will first gradually drive the locking pin 612 to be pulled out from the pin hole 615, releasing the lock between the cutting blade 12, the bolt 3 and the left support frame, and then drive the right slope of the trapezoidal plate 524 to squeeze the control rod 521, driving the control rod 521 to push the rack 522 upward and drive the gear 523 to rotate, thereby driving the left end of the rotating shaft 512, and then driving the two connecting frames 513 away from the bolt 3, releasing the clamping of the bolt 3, and finally, the bolt 3 that has completed the deburring operation is transferred to the top of the blanking frame 11 for blanking through the external blanking assembly.

[0052] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all embodiments. However, obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A deburring device for extra-long bolts, comprising a machine body (1) and a step-by-step feeding unit (2) located at the rear side of the machine body (1), the step-by-step feeding unit (2) comprising a feeding assembly (21) and an adaptive assembly (22) located at the unloading end of the feeding assembly (21), a driving member (13) and a support plate (8) are fixedly mounted on the top of the machine body (1), a cylinder (10) is fixedly mounted on the right side of the support plate (8), a cutting blade (12) for deburring the bolt (3) is fixedly mounted on the output end of the driving member (13), two guide rods (9) symmetrically mounted front and back are commonly mounted between the support plate (8) and the driving member (13), and the device is characterized in that: The outer side of the guide rod (9) is provided with a clamping portion (7), a locking portion (6) and a guiding portion (5) in sequence from right to left; The guide portion (5) comprises a guide assembly (51) and a control assembly (52) for controlling the guide assembly (51); the guide assembly (51) is used to clamp the bolt (3) that falls on the top of the adaptive assembly (22) as the clamping portion (7) moves leftward and limits the position of the bolt (3); the locking portion (6) comprises a locking assembly (61) for integrally coaxially locking the guide assembly (51), the adaptive assembly (22) and the cutting blade (12); and a pushing assembly (62) for pushing the locking assembly (61) is provided between the locking assembly (61) and the clamping portion (7).

2. The extra-long bolt deburring device according to claim 1, characterized in that: The adaptive component (22) includes two loading racks (221) fixedly mounted on the front side of the loading component (21), a slide rail (222) fixedly mounted on the front side of the right loading rack (221), an adjustment bracket (223) slidably mounted on the front side of the slide rail (222), the adjustment bracket (223) and the left loading rack (221) are used together to support the bolt (3), a strong spring is provided between the adjustment bracket (223) and the right inner wall of the slide rail (222), and the strong spring is used to pull the adjustment bracket (223) close to the right inner wall of the slide rail (222).

3. The extra-long bolt deburring device according to claim 2, characterized in that: The guide assembly (51) comprises a mounting frame (511) fixedly mounted on the bottom of the left material carrier (221); two rotating shafts (512) symmetrically mounted front and rear are rotatably mounted on the left side of the mounting frame (511); the left end of the rotating shaft (512) passes through the mounting frame (511) and is fixedly mounted with a connecting frame (513); the two connecting frames (513) are symmetrical to each other, and a guide plate (514) is fixedly mounted on the adjacent side of the two connecting frames (513); and a plurality of balls are rotatably mounted on the inner wall of the guide plate (514) for ensuring the left and right freedom of the bolt (3).

4. The extra-long bolt deburring device according to claim 3, characterized in that: The locking assembly (61) includes two fixing plates (614) fixedly mounted on the bottom of the left material carrier (221) and symmetrically arranged front to back, and respectively fixedly mounted on the two guide rods (9). A return spring (613) slidably mounted on the right side of the fixing plate (614) is fixedly mounted, and a return plate (611) slidably mounted on the guide rod (9) is mounted on the right end of the two return springs (613).

5. The extra-long bolt deburring device according to claim 4, characterized in that: Two locking pins (612) are fixedly installed on the left side of the reset plate (611) and are symmetrical in front and back. A locking sleeve (616) is fixedly installed on the right side of the driving member (13) and is sleeved on the outside of the cutting blade (12). The locking sleeve (616) and the cutting blade (12) are connected through a bearing. Pin holes (615) are provided on the locking sleeve (616), the connecting frame (513) and the loading frame (221).

6. The extra-long bolt deburring device according to claim 4, characterized in that: The control assembly (52) includes a gear (523) key-connected to the rotating shaft (512), a rack (522) meshing between the two gears (523), the rack (522) being slidably connected to a slide groove provided on the right inner wall of the mounting frame (511) via a slider, and a thrust spring being provided between the rack (522) and the right inner wall of the mounting frame (511).

7. The extra-long bolt deburring device according to claim 6, characterized in that: A control rod (521) is fixedly mounted on the bottom of the rack (522), and a trapezoidal plate (524) matching the control rod (521) is fixedly mounted on the left side of the reset plate (611) via a fixing rod.

8. The extra-long bolt deburring device according to claim 4, characterized in that: The clamping portion (7) comprises a driving frame (71) fixedly mounted on the output end of the cylinder (10) and slidably connected to the two guide rods (9); a mounting plate (72) is fixedly mounted on the inner wall of the driving frame (71); a clamping claw (73) for clamping the end of the bolt (3) is hingedly connected to the left side of the mounting plate (72); a hinge sleeve (74) is hingedly connected between the clamping claws (73); a reset rod (75) for resisting the end of the bolt (3) is fixedly mounted on the inner wall of the hinge sleeve (74); the right end of the reset rod (75) slides through the mounting plate (72) and is fixedly mounted with a circular plate (77); a reset spring (76) sleeved on the outer side of the reset rod (75) is commonly mounted between the circular plate (77) and the mounting plate (72).

9. The extra-long bolt deburring device according to claim 8, characterized in that: The pushing assembly (62) includes two mounting rods (621) fixedly mounted on the left side of the driving frame (71) and symmetrically arranged front to back. The left ends of the two mounting rods (621) are mounted with a pushing plate (622) for pushing the reset plate (611).

Images