Shaving razor blade protection machining mechanical arm with position-changeable machined part

Abstract

The invention relates to the technical field of razor production equipment, in particular to a razor blade protection machining mechanical arm with a position-changeable machined part, which comprises a supporting column, a shifting structure, a supporting plate, a moving structure, a drilling structure, a shielding structure, a clamping structure, an indicating structure and a mounting hole, in the process of installing the tool holder, the drilling position can be marked through the indicating structure, so that the situation that the position of the tool holder deviates after manual installation is avoided, the drilling accuracy is effectively improved, chippings generated in the drilling process can be shielded through the shielding structure, the chippings can be prevented from splashing all around, and the drilling efficiency is improved. According to the mechanical arm, cleaning of the periphery of the mechanical arm is effectively guaranteed, rapid disassembly of the shielding structure can be achieved through the clamping structure, so that the shielding structure does not shield a drilling assembly in the drilling structure, and replacement and overhaul of the drilling assembly in the drilling structure are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of razor production equipment, in particular to a mechanical arm for processing razor blade guards with a displaceable processing part. Background Art

[0002] A razor is a tool used by people to shave beards and hair. The blade is mainly sharpened by rubbing raw cowhide. The blade of a razor is relatively sharp. If it is directly exposed to the outside, it is not only easy to hurt people, but also easy to be damaged by impact. Therefore, when the razor is not needed, the blade of the razor needs to be folded inside the handle, so that the handle can protect the blade of the razor. During the processing of the razor handle, a robot arm needs to drill holes on its side.

[0003] However, a traditional drilling robot arm will generate debris when drilling a razor handle. These debris are easily blown around by the high-speed rotation of the drill bit, making it inconvenient to clean the area around the robot arm. In addition, the handle needs to be manually installed and fixed before drilling. Since the drilling position of the drill bit cannot be known before drilling, when the installation position of the handle deviates, it is easy to cause a deviation in the drilling position, resulting in lower accuracy in use. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides a robot arm for processing razor blade guards with a displaceable processing part.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a mechanical arm for processing a razor blade guard with a displaceable processing part, comprising a support column, a displacement structure is provided on the support column, a support plate is provided on the displacement structure, a moving structure is provided on the support plate, a drilling structure is provided on the moving structure, a shielding structure is provided on the moving structure, a positioning structure is provided on the moving structure, an indication structure is provided on the support plate, and a plurality of mounting holes are provided on the support column;

[0006] The movable structure includes a connecting cylinder and a sliding rod. The connecting cylinder is fixedly connected to the support plate, an electric push rod is installed on the top of the connecting cylinder, and the sliding rod is slidably connected to the connecting cylinder. The top of the sliding rod is rotatably connected to the bottom end of the electric push rod. A first guide shaft is fixedly connected to the sliding rod, and a first guide groove is provided on the connecting cylinder. The end of the first guide shaft extends to the inside of the first guide groove and is slidably connected to the connecting cylinder. The bottom end of the sliding rod is fixedly connected to a connecting seat, and a drilling structure is provided on the connecting seat.

[0007] Specifically, the drilling structure includes a fourth motor and a connecting shaft. The fourth motor is installed on the connecting seat. The connecting shaft is rotatably connected to the connecting seat. The output shaft of the fourth motor is fixedly connected to the top of the connecting shaft. A drill bit is installed at the bottom end of the connecting shaft through multiple locking bolts.

[0008] Specifically, the indicating structure includes a mounting plate and an infrared irradiation pen. The mounting plate is fixedly connected to the supporting plate, and the infrared irradiation pen is installed on the mounting plate.

[0009] Specifically, the shielding structure includes a connecting ring and a connecting rod. The connecting seat is clamped with a connecting ring, a plurality of connecting rods are threadedly connected to the connecting ring, and the plurality of connecting rods are slidably connected to the same shielding cover.

[0010] Specifically, a first spring is sleeved on the outside of the connecting rod, one end of the first spring abuts against the connecting ring, and the other end of the first spring abuts against the shielding cover.

[0011] Specifically, one end of the connecting rod is provided with a boss with a hexagonal cross section, and the other end of the connecting rod has a T-shaped cross section.

[0012] Specifically, the locking structure includes a swivel and a protrusion. The swivel is rotatably connected to the connecting seat. The swivel is provided with a plurality of second guide grooves. The connecting seat is slidably connected to a plurality of locking blocks. The locking blocks are fixedly connected to a second guide shaft. The second guide shaft extends to the interior of the second guide groove and is slidably connected to the swivel. A second spring is provided between the locking block and the connecting seat.

[0013] Specifically, a plurality of protrusions are fixedly connected to the rotating ring, and the plurality of protrusions are distributed in a circular array about the center of the rotating ring.

[0014] Specifically, one end of the block cross section is in a trapezoidal structure, and a plurality of the second guide grooves are distributed in a circular array about the center of the rotating ring.

[0015] Specifically, the displacement structure includes a first motor and a screw rod, the first motor is installed on the support column, the support column is rotatably connected with a screw rod, the top end of the screw rod is fixedly connected to the output shaft of the first motor, the screw rod is threadedly connected with a slide, the slide is slidably connected to the support column, the slide is rotatably connected with a first connecting arm, the first connecting arm is rotatably connected with a second connecting arm, the second motor is installed on the slide, the output shaft of the second motor is fixedly connected to the first connecting arm, the first connecting arm is installed with a third motor, the output shaft of the third motor is fixedly connected to the second connecting arm, and the second connecting arm is fixedly connected with a support plate.

[0016] The beneficial effects of the present invention are:

[0017] (1) The present invention discloses a robot arm for machining a razor blade with a displaceable machining part. During the process of installing the handle, the position of the drilling hole can be marked by an indicating structure, thereby avoiding the deviation of the handle position after manual installation, thereby effectively improving the accuracy of drilling. When the handle is installed, the drilling structure can be driven by the moving structure to move to the top of the handle, and the drilling structure will continue to move to drill the handle. When the drilling is completed, the moving structure will drive the drilling structure to deviate from the top of the handle. Therefore, when the handle is taken out, the drilling structure can be avoided from blocking the handle, thereby effectively improving the convenience of use.

[0018] (2) The present invention discloses a robot arm for machining razor blades with a displaceable workpiece. The shielding structure can shield the debris generated during the drilling process, thereby preventing the debris from splashing around and effectively ensuring the cleanliness of the robot arm.

[0019] (3) The present invention provides a robot arm for processing a razor blade guard with a displaceable processing part. The blocking structure can be quickly disassembled through a locking structure, so that the blocking structure does not block the drilling assembly inside the drilling structure, thereby facilitating the replacement and maintenance of the drilling assembly inside the drilling structure. After the support column is installed, the position of the drilling structure can be adjusted according to the installation position of the fixed assembly of the handle through the shifting structure, thereby effectively improving the flexibility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 A schematic diagram of the overall structure of a preferred embodiment of a razor blade guard processing robot arm with a displaceable processing piece provided by the present invention;

[0022] Figure 2 It is a schematic diagram of the connection structure between the second connecting arm and the support plate of the present invention;

[0023] Figure 3 for Figure 2 An enlarged schematic diagram of the structure of section A is shown;

[0024] Figure 4 It is a schematic diagram of the connection structure between the support plate and the connection tube of the present invention;

[0025] Figure 5 for Figure 4 An enlarged schematic diagram of the structure of part B is shown;

[0026] Figure 6 It is a schematic diagram of the connection structure between the slide table and the first connecting arm of the present invention;

[0027] Figure 7 It is a schematic diagram of the connection structure between the protrusion and the rotating ring of the present invention;

[0028] Figure 8 It is a schematic structural diagram of the connecting rod of the present invention.

[0029] In the figure: 1, support column; 2, shift structure; 201, first motor; 202, screw rod; 203, slide; 204, first connecting arm; 205, second connecting arm; 206, second motor; 207, third motor; 3, support plate; 4, moving structure; 401, connecting cylinder; 402, electric push rod; 403, slide rod; 404, first guide shaft; 405, first guide groove; 406, connecting seat; 5, drilling structure; 501, fourth Motor; 502, connecting shaft; 503, drill bit; 504, locking bolt; 6, shielding structure; 601, connecting ring; 602, connecting rod; 603, first spring; 604, shielding cover; 7, positioning structure; 701, protrusion; 702, rotating ring; 703, second guide groove; 704, second guide shaft; 705, blocking block; 706, second spring; 8, indicating structure; 801, mounting plate; 802, infrared irradiation pen; 9, mounting hole. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0031] like Figure 1 , Figure 3 , Figure 4 , Figure 5 As shown, a robot arm for processing a razor blade with a displaceable processing part described in the present invention comprises a support column 1, a displacement structure 2 is provided on the support column 1, a support plate 3 is provided on the displacement structure 2, a moving structure 4 is provided on the support plate 3, a drilling structure 5 is provided on the moving structure 4, a shielding structure 6 is provided on the moving structure 4, a locking structure 7 is provided on the moving structure 4, an indication structure 8 is provided on the support plate 3, and a plurality of mounting holes 9 are provided on the support column 1.

[0032] like Figure 2 , Figure 3 and Figure 4As shown, the movable structure 4 includes a connecting cylinder 401 and a sliding rod 403, the supporting plate 3 is fixedly connected with the connecting cylinder 401, the top of the connecting cylinder 401 is installed with an electric push rod 402, the connecting cylinder 401 is slidably connected with the sliding rod 403, the top of the sliding rod 403 is rotatably connected with the bottom end of the electric push rod 402, the sliding rod 403 is fixedly connected with a first guide shaft 404, the connecting cylinder 401 is provided with a first guide groove 405, the end of the first guide shaft 404 extends to the inside of the first guide groove 405 and is slidably connected with the connecting cylinder 401, the bottom end of the sliding rod 403 is fixedly connected with a connecting seat 406, the connecting seat 406 is provided with a drilling structure 5, and the drilling structure 5 includes a fourth electric The connecting seat 406 is provided with a fourth motor 501, and the connecting seat 406 is rotatably connected with the connecting shaft 502. The output shaft of the fourth motor 501 is fixedly connected to the top of the connecting shaft 502. The bottom end of the connecting shaft 502 is provided with a drill bit 503 through a plurality of locking bolts 504. The indicating structure 8 comprises a mounting plate 801, and the mounting plate 801 is fixedly connected to the supporting plate 3. The mounting plate 801 is provided with an infrared irradiation pen 802, that is, the infrared irradiation pen 802 can emit infrared rays during the installation of the knife handle, and the emitted infrared light beam will irradiate the knife handle when the knife handle is installed, so that the position of the knife handle on the knife handle can be adjusted according to the position of the infrared irradiation on the knife handle when the knife handle is installed. The position of the tool handle is adjusted accordingly, so as to avoid the occurrence of deviation in the drilling position, and effectively improve the accuracy of drilling. When the tool handle position is installed, the electric push rod 402 can be started. The extension of the electric push rod 402 will drive the sliding rod 403 to move, and the sliding rod 403 drives the first guide shaft 404 to move inside the first guide groove 405. Since the first guide shaft 404 starts to move at a vertical position at the top of the first guide groove 405, the sliding rod 403 will not rotate during the movement. When the first guide shaft 404 moves to the middle of the first guide groove 405, the sliding rod 403 will rotate in the cooperation of the first guide shaft 404 and the first guide groove 405, and the rotation of the sliding rod 403 drives the connecting seat 406 to rotate. , the rotation of the connecting seat 406 will drive the drill bit 503 to move. After the drill bit 503 rotates 90 degrees around the axis of the sliding rod 403, the first guide shaft 404 will be located at the vertical position at the bottom end of the first guide groove 405. At this time, the sliding rod 403 will not rotate inside the connecting tube 401. At this time, the axis of the drill bit 503 will coincide with the axis of the light column of the infrared irradiation pen 802. Then, the fourth motor 501 can be started, and the output shaft of the fourth motor 501 will rotate to drive the connecting shaft 502 to rotate, and the connecting shaft 502 will rotate to drive the drill bit 503 to rotate. As the drill bit 503 continues to move, the high-speed rotating drill bit 503 will contact the tool handle and realize drilling of the tool handle. When the drilling is completed, the electric push rod 402 will shrink and drive the drill bit 503 to reset.When the drill bit 503 is reset, it will deviate from the top of the handle, so it can avoid the drill bit 503 from blocking the body of the worker when taking and installing the handle, thereby effectively improving the convenience of use.

[0033] Specifically, Figure 3 , Figure 4 , Figure 5 and Figure 8 As shown, the shielding structure 6 includes a connecting ring 601 and a connecting rod 602. The connecting seat 406 is engaged with the connecting ring 601. The connecting ring 601 is threadedly connected with multiple connecting rods 602. The multiple connecting rods 602 are slidably connected with the same shielding cover 604. The outer sleeve of the connecting rod 602 is provided with a first spring 603. One end of the first spring 603 abuts against the connecting ring 601, and the other end of the first spring 603 abuts against the shielding cover 604. One end of the connecting rod 602 is provided with a boss with a hexagonal cross section. The other end of the cross section 2 is in a T-shaped structure, that is, during the drilling process, the shielding cover 604 will move with the drill bit 503. Before the drill bit 503 contacts the tool handle, the shielding cover 604 will first contact the tool handle. At this time, as the connecting seat 406 continues to move, the shielding cover 604 will slide between the multiple connecting rods 602, and the multiple first springs 603 will shrink. Therefore, during the drilling process of the drill bit 503, the shielding cover 604 can shield the surroundings of the drill bit 503, thereby preventing the debris generated by the drilling from splashing around, and effectively ensuring the cleanliness of the surroundings of the robot arm.

[0034] Specifically, Figure 3 , Figure 5 and Figure 7As shown, the clamping structure 7 includes a swivel 702 and a protrusion 701, the swivel 702 is rotatably connected to the connecting seat 406, the swivel 702 is provided with a plurality of second guide grooves 703, the connecting seat 406 is slidably connected with a plurality of clamping blocks 705, the clamping block 705 is fixedly connected with a second guide shaft 704, the second guide shaft 704 extends to the inside of the second guide groove 703 and is slidably connected to the swivel 702, a second spring 706 is abutted between the clamping block 705 and the connecting seat 406, a plurality of protrusions 701 are fixedly connected to the swivel 702, the plurality of protrusions 701 are distributed in a circular array about the center of the swivel 702, one end of the cross section of the clamping block 705 is a trapezoidal structure, and the plurality of second guide grooves 703 are distributed in a circular array about the center of the swivel 702, that is, when the drill bit 503 needs to be replaced and repaired The rotating ring 702 can be rotated by holding the protrusion 701. As the rotating ring 702 rotates, the second guide shaft 704 will move inside the second guide groove 703. When the second guide shaft 704 moves inside the second guide groove 703, the block 705 will move away from the connecting ring 601, and the first spring 603 will shrink. When multiple blocks 705 are not engaged with the connecting ring 601 at the same time, the connecting ring 601 can be removed from the connecting seat 406. When the connecting ring 601 is removed from the connecting seat 406, the shielding cover 604 will not block the drill bit 503. At this time, the multiple locking bolts 504 that fix the drill bit 503 can be twisted off the connecting shaft 502 and the drill bit 503 can be taken out from the bottom end of the connecting shaft 502. By quickly disassembling the shielding cover 604, the shielding cover 604 can stop blocking the drill bit 503, thereby facilitating the replacement and maintenance of the drill bit 503.

[0035] Specifically, Figure 1 and Figure 6As shown, the displacement structure 2 includes a first motor 201 and a screw rod 202, the first motor 201 is installed on the support column 1, the screw rod 202 is rotatably connected to the support column 1, the top of the screw rod 202 is fixedly connected to the output shaft of the first motor 201, a slide 203 is threadedly connected to the screw rod 202, the slide 203 is slidably connected to the support column 1, the slide 203 is rotatably connected to the first connecting arm 204, the first connecting arm 204 is rotatably connected to the second connecting arm 205, the second motor 206 is installed on the slide 203, the output shaft of the second motor 206 is fixedly connected to the first connecting arm 204, the first connecting arm 204 is installed with a third motor 207, the output shaft of the third motor 207 is fixedly connected to the second connecting arm 205, and the second connecting arm 205 is fixedly connected to a support plate 3, that is: when in use, first install the support column 1 through the multiple mounting holes 9 with bolts, when the support column 1 is installed, the output shaft of the first motor 201 can be rotated to drive the screw rod 202 to rotate, and the screw rod 202 can drive the slide 203 to slide on the support column 1 through the thread, and the initial height of the drill bit 503 can be adjusted by adjusting the height of the slide 203. When the height adjustment of the drill bit 503 is completed, the second motor 206 can be started, and the rotation of the output shaft of the second motor 206 will drive the first connecting arm 204 to rotate. At the same time, the third motor 207 can be started, and the output shaft of the third motor 207 can be rotated to drive the second connecting arm 205 to rotate, and the movement of the second connecting arm 205 will drive the drill bit 503 to move, so that the initial position of the drill bit 503 can be adjusted according to the actual installation position of the tool handle fixing assembly, thereby effectively improving the flexibility of use.

[0036] When the present invention is in use, the support column 1 is first installed through the plurality of mounting holes 9 with the bolts. When the support column 1 is installed, the output shaft of the first motor 201 can be rotated to drive the screw rod 202 to rotate. The screw rod 202 threadably drives the slide 203 to slide on the support column 1. The initial height of the drill bit 503 can be adjusted by adjusting the height of the slide 203. When the height adjustment of the drill bit 503 is completed, the second motor 206 can be started. The rotation of the output shaft of the second motor 206 will drive the first connecting arm 204 to rotate. At the same time, the third motor 207 can be started. The rotation of the output shaft of the third motor 207 will drive the second connecting arm 205 to rotate. The movement of the second connecting arm 205 will drive the drill bit 503 Movement, so that the initial position of the drill bit 503 can be adjusted according to the actual installation position of the tool handle fixing component, thereby effectively improving the flexibility of use, and then the tool handle can be installed on the tool handle fixing component. During the installation of the tool handle, infrared rays can be emitted by the infrared irradiation pen 802, and the emitted infrared light beam will irradiate the tool handle when the tool handle is installed. Therefore, when the tool handle is installed, the position of the tool handle can be adjusted accordingly according to the position where the infrared rays are irradiated on the tool handle, thereby avoiding the occurrence of deviation in the drilling position, and effectively improving the accuracy of drilling. When the tool handle position is installed, the electric push rod 402 can be started, and the extension of the electric push rod 402 will drive the sliding rod 403 to move, and the sliding rod 40 3 drives the first guide shaft 404 to move inside the first guide groove 405. Since the first guide shaft 404 moves at a vertical position at the top of the first guide groove 405 at the beginning, the slide bar 403 will not rotate during the movement. When the first guide shaft 404 moves to the middle of the first guide groove 405, the slide bar 403 will rotate under the cooperation of the first guide shaft 404 and the first guide groove 405. The rotation of the slide bar 403 drives the connecting seat 406 to rotate. The rotation of the connecting seat 406 will drive the drill bit 503 to move. After the drill bit 503 rotates 90 degrees around the axis of the slide bar 403, the first guide shaft 404 will be located at a vertical position at the bottom of the first guide groove 405. At this time, the slide bar 403 will not rotate in the connecting tube. 401 rotates internally, at this time, the axis of the drill bit 503 will coincide with the axis of the light column of the infrared irradiation pen 802, and then the fourth motor 501 can be started, and the output shaft of the fourth motor 501 rotates to drive the connecting shaft 502 to rotate, and the connecting shaft 502 rotates to drive the drill bit 503 to rotate. As the drill bit 503 continues to move, the high-speed rotating drill bit 503 will contact the tool handle and realize drilling of the tool handle. When the drilling is completed, the electric push rod 402 will shrink and drive the drill bit 503 to reset. When the drill bit 503 is reset, the drill bit 503 will deviate from the top of the tool handle, so that it can avoid the drill bit 503 from resisting the body of the staff when taking and installing the tool handle, thereby effectively improving the convenience of use;

[0037] During the drilling process, the shielding cover 604 will move with the drill bit 503. Before the drill bit 503 contacts the tool handle, the shielding cover 604 will first contact the tool handle. At this time, as the connecting seat 406 continues to move, the shielding cover 604 will slide between the multiple connecting rods 602, and the multiple first springs 603 will shrink. Therefore, during the drilling process of the drill bit 503, the shielding cover 604 can shield the drill bit 503 around, thereby preventing the debris generated by the drilling from splashing around, effectively ensuring the cleanliness of the robot arm around. As the rotating ring 702 rotates, the second guide shaft 704 will move inside the second guide groove 703. The second guide shaft 704 in the second guide groove When moving toward the inside of the groove 703, the block 705 will move away from the connecting ring 601, and the first spring 603 will contract. When multiple blocks 705 are not engaged with the connecting ring 601 at the same time, the connecting ring 601 can be removed from the connecting seat 406. When the connecting ring 601 is removed from the connecting seat 406, the shielding cover 604 will not block the drill bit 503. At this time, the multiple locking bolts 504 that fix the drill bit 503 can be twisted off the connecting shaft 502 and the drill bit 503 can be taken out from the bottom end of the connecting shaft 502. By quickly disassembling the shielding cover 604, the shielding cover 604 can stop blocking the drill bit 503, thereby facilitating the replacement and maintenance of the drill bit 503.

[0038] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A robot arm for machining razor blade guards with a displaceable workpiece, characterized in that: The invention comprises a support column (1), wherein a displacement structure (2) is provided on the support column (1), a support plate (3) is provided on the displacement structure (2), a moving structure (4) is provided on the support plate (3), a drilling structure (5) is provided on the moving structure (4), a shielding structure (6) is provided on the moving structure (4), a locking structure (7) is provided on the moving structure (4), an indicating structure (8) is provided on the support plate (3), and a plurality of mounting holes (9) are provided on the support column (1); The movable structure (4) comprises a connecting tube (401) and a sliding rod (403); the connecting tube (401) is fixedly connected to the support plate (3); an electric push rod (402) is installed at the top end of the connecting tube (401); the sliding rod (403) is slidably connected to the connecting tube (401); the top end of the sliding rod (403) is rotatably connected to the bottom end of the electric push rod (402); a first guide shaft (404) is fixedly connected to the sliding rod (403); a first guide groove (405) is provided on the connecting tube (401); an end of the first guide shaft (404) extends to the inside of the first guide groove (405) and is slidably connected to the connecting tube (401); a connecting seat (406) is fixedly connected to the bottom end of the sliding rod (403); a drilling structure (5) is provided on the connecting seat (406).

2. A razor edge processing robot arm with a displaceable workpiece according to claim 1, characterized in that: The drilling structure (5) comprises a fourth motor (501) and a connecting shaft (502); the fourth motor (501) is mounted on the connecting seat (406); the connecting shaft (502) is rotatably connected to the connecting seat (406); the output shaft of the fourth motor (501) is fixedly connected to the top end of the connecting shaft (502); and a drill bit (503) is mounted on the bottom end of the connecting shaft (502) via a plurality of locking bolts (504).

3. A razor edge processing robot arm with a displaceable processing workpiece according to claim 1, characterized in that: The indicating structure (8) comprises a mounting plate (801) and an infrared irradiation pen (802); the mounting plate (801) is fixedly connected to the support plate (3); and the infrared irradiation pen (802) is mounted on the mounting plate (801).

4. A razor blade guard processing robot arm with a displaceable processing workpiece according to claim 2, characterized in that: The shielding structure (6) comprises a connecting ring (601) and a connecting rod (602); the connecting seat (406) is clamped with the connecting ring (601); a plurality of connecting rods (602) are threadedly connected to the connecting ring (601); and a same shielding cover (604) is slidably connected to the plurality of connecting rods (602).

5. A razor edge processing robot arm with a displaceable processing workpiece according to claim 4, characterized in that: A first spring (603) is sleeved on the outside of the connecting rod (602), one end of the first spring (603) abuts against the connecting ring (601), and the other end of the first spring (603) abuts against the shielding cover (604).

6. A razor edge processing robot arm with a displaceable processing workpiece according to claim 5, characterized in that: One end of the connecting rod (602) is provided with a boss with a hexagonal cross section, and the other end of the connecting rod (602) has a T-shaped cross section.

7. A razor edge processing robot arm with a displaceable processing workpiece according to claim 5, characterized in that: The locking structure (7) comprises a rotating ring (702) and a protrusion (701); the connecting seat (406) is rotatably connected with the rotating ring (702); the rotating ring (702) is provided with a plurality of second guide grooves (703); the connecting seat (406) is slidably connected with a plurality of locking blocks (705); the locking blocks (705) are fixedly connected with a second guide shaft (704); the second guide shaft (704) extends to the inside of the second guide groove (703) and is slidably connected to the rotating ring (702); a second spring (706) is provided between the locking block (705) and the connecting seat (406) to abut against each other.

8. The robot arm for processing razor blade guards with a displaceable processing workpiece according to claim 7, characterized in that: A plurality of protrusions (701) are fixedly connected to the rotating ring (702), and the plurality of protrusions (701) are distributed in a circular array about the center of the rotating ring (702).

9. The robot arm for processing razor blade guards with a displaceable processing workpiece according to claim 7, characterized in that: One end of the cross section of the clamping block (705) is in a trapezoidal structure, and a plurality of the second guide grooves (703) are distributed in a circular array about the center of the rotating ring (702).

10. The robot arm for processing razor blade guards with a displaceable processing workpiece according to claim 1, characterized in that: The displacement structure (2) comprises a first motor (201) and a screw rod (202); the first motor (201) is mounted on the support column (1); the screw rod (202) is rotatably connected to the support column (1); the top end of the screw rod (202) is fixedly connected to the output shaft of the first motor (201); a slide table (203) is threadedly connected to the screw rod (202); the slide table (203) is slidably connected to the support column (1); and the slide table (203) is rotatably connected to the first connecting arm (201). 04), the first connecting arm (204) is rotatably connected to a second connecting arm (205), the slide (203) is equipped with a second motor (206), the output shaft of the second motor (206) is fixedly connected to the first connecting arm (204), the first connecting arm (204) is equipped with a third motor (207), the output shaft of the third motor (207) is fixedly connected to the second connecting arm (205), and the second connecting arm (205) is fixedly connected to a support plate (3).

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