Polishing and overturning mechanical arm

Abstract

The polishing and overturning mechanical arm comprises a mechanical arm body provided with a polishing head and a wire harness and further comprises a protection piece arranged on the outer side of the wire harness in a sleeved mode, the protection piece is divided into a main sleeve and an auxiliary sleeve according to functions, a screw channel is formed in the inner side of the main sleeve, and a plurality of screw protrusions connected with the screw channel in an embedded mode are fixedly arranged on the outer side wall of the auxiliary sleeve in a sleeved mode. According to the polishing and overturning mechanical arm, the screw protrusions on the auxiliary sleeve are embedded into the screw channels in the inner side wall of the main sleeve, so that the protection piece can protect the wire harness, the screw protrusions can provide double interception protection, the situation that chippings and sparks permeate into the protection piece after being cooled, and consequently the wire harness is abraded is effectively reduced, and the service life of the wire harness is prolonged. And the spiral channel which is located in the main sleeve made of rubber and is spirally arranged can provide a multi-layer blocking effect, and finally, the elastic protection strip abutting against the connecting position of the mechanical arm and the grinding head is matched for supporting protection, so that abrasion to the outer side walls of the main sleeve and the auxiliary sleeve is effectively reduced, and the service life of the protection part is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a polishing mechanical arm technical field, concretely relates to a polishing overturning mechanical arm. BACKGROUND

[0002] Polishing is common in mechanical manufacturing, used for removing the processing marks of metal workpieces in the previous process, and can make the metal workpiece surface smooth, generally using a mechanical arm to assemble a polishing head for accurate processing.

[0003] According to the disclosure (announcement) number: CN114473759A, the disclosure (announcement) day: May 13, 2022, a kind of composite material mechanical arm polishing device is disclosed.

[0004] In the prior art including the above patent, the polishing head assembled at the end of the mechanical arm usually needs to be controlled separately using a wire, and some polishing heads for workpieces with serious spark smoke polishing also have a cover outside the polishing head to extract smoke, but in order to solve the anti-interference problem during the operation of the mechanical arm, the suction pipeline and the line are bundled together, and the line on the mechanical arm is routed in the same way. The line at the end of the mechanical arm is necessarily in a bare state, so when the polishing head polishes the workpiece from bottom to top, the metal sparks generated are easily impacted on the bare line, causing damage to the line and even failure, affecting the normal work of the polishing head and reducing the workshop processing efficiency. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a kind of polishing overturning mechanical arm, to solve the problem generated above.

[0006] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0007] A kind of polishing overturning mechanical arm, including the mechanical arm provided with polishing head and wire harness, further including the protective piece of sleeve setting on the outer side of wire harness, the protective piece is divided into main sleeve and vice sleeve according to function;

[0008] Screw channel is opened in the inner side of the main sleeve, a plurality of screw convexes are fixedly sleeved on the outer wall of the vice sleeve and embeddedly connected with the screw channel, and a plurality of elastic guard strips are also circumferentially arranged on the outer wall of the main sleeve and abut against the end of the mechanical arm.

[0009] Preferably, the main sleeve cooperates with the vice sleeve and the wire harness to form an air cavity, and the end of the vice sleeve is provided with a suction hole communicating with the air cavity.

[0010] Preferably, a plurality of exhaust ports are opened on the outer wall of the vice sleeve and communicate with the suction hole, and the exhaust ports communicate with the plurality of screw channels.

[0011] Preferably, the vice sleeve is sleeved on the outer side of the main sleeve, so that the elastic guard strips are insertedly connected with the suction hole.

[0012] Preferably, the secondary sleeve in the plug-in fit makes the plurality of screw bosses abut the mechanical arm.

[0013] In the above technical solution, the polishing and overturning mechanical arm has the following beneficial effects: the screw boss on the secondary sleeve is embedded in the screw channel of the inner side wall of the primary sleeve, so that the protection member can provide stable outer protection for the wire harness, and the screw boss with two screw rings can provide double interception protection, effectively reducing the penetration of the cooled debris and sparks into the protection member to cause wear of the wire harness, the screw channel in the primary sleeve made of rubber material and arranged in a spiral manner can also provide multi-layer blocking effect, making it more difficult for the debris and sparks to penetrate, and finally the elastic guard strip abutting the connection position of the mechanical arm and the polishing head is used for supporting and protecting, effectively reducing the wear of the outer side walls of the primary sleeve and the secondary sleeve, and prolonging the service life of the protection member. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0015] Figure 1 The mechanical arm, the polishing head thereon, the wire harness and the protection member assembly schematic diagram provided by the embodiment of the present application;

[0016] Figure 2 The protection member structure schematic diagram provided by the embodiment of the present application;

[0017] Figure 3 The protection member side sectional view schematic diagram provided by the embodiment of the present application;

[0018] Figure 4 The Figure 3 enlarged schematic diagram of A.

[0019] Explanation of reference signs:

[0020] 1, mechanical arm; 2, polishing head; 21, wire harness; 3, protection member; 31, primary sleeve; 311, screw channel; 312, air cavity; 32, secondary sleeve; 321, screw boss; 322, suction hole; 323, discharge port; 33, elastic guard strip. DETAILED DESCRIPTION

[0021] In order to make those skilled in the art better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0022] As Figures 1-4As shown, a kind of polishing overturns mechanical arm, including the mechanical arm 1 being provided with polishing head 2 and wiring harness 21, also including the protective member 3 being sleeved on the outside of wiring harness 21, protective member 3 is divided into main sleeve 31 and vice sleeve 32 according to function;

[0023] Screw channel 311 is set in the inside of main sleeve 31, and a plurality of screw bosses 321 are fixedly sleeved on the outer wall of vice sleeve 32 and are embeddedly connected with screw channel 311, and elastic guard strip 33 is circumferentially arranged on the outer wall of main sleeve 31 and abuts against the end of mechanical arm 1.

[0024] Specifically, wiring harness 21 supplies power to polishing head 2 and extracts smoke dust, and the prior art is not described here, the connecting position of main sleeve 31 and vice sleeve 32 adopts rubber material, so that the two can achieve high sealing capacity, and the outer sides of main sleeve 31 and vice sleeve 32 are coated with corrosion-resistant and high-temperature-resistant coating, and the coating material is the prior art, which is not described here.

[0025] Further, screw boss 321 is specifically a hard plastic ring, and screw channel 311 is a recess set in the inner wall of main sleeve 31, so that when screw boss 321 is embedded in the inside of screw channel 311, the sealing between main sleeve 31 and vice sleeve 32 is higher.

[0026] Further, elastic guard strip 33 is specifically a hard elastic plastic strip, so that the raised elastic guard strip 33 can effectively reduce the direct wear of mechanical arm 1 on protective member 3.

[0027] By embedding screw boss 321 on vice sleeve 32 into screw channel 311 on the inner wall of main sleeve 31, protective member 3 can provide stable outside protection for wiring harness 21, and screw boss 321 with two spiral rings can provide double interception protection, effectively reducing the wear of wiring harness 21 caused by the penetration of cooled debris and sparks into the inside of protective member 3, and screw channel 311 in rubber material and arranged in a spiral can also provide a multi-layer blocking effect, making it more difficult for debris and sparks to penetrate, and finally supporting and protecting the elastic guard strip 33 abutting against the connecting position of mechanical arm 1 and polishing head 2, effectively reducing the wear on the outer walls of main sleeve 31 and vice sleeve 32, improving the service life of protective member 3, and changing the position of screw boss 321 embedded in screw channel 311 during the process of directly pulling main sleeve 31 and vice sleeve 32, the purpose is to extend the length of protective member 3 to adapt to the length of wiring harness 21, and increase the protection area of protective member 3.

[0028] As a further embodiment of the utility model, main sleeve 31 cooperates with vice sleeve 32 and wiring harness 21 to form air cavity 312, and vice sleeve 32 is provided with suction hole 322 communicating with air cavity 312 at the end.

[0029] Specifically, the main sleeve 31 protruding outside the secondary sleeve 32 will inevitably cause some air in the air cavity 312, so that the air in the air cavity 312 is in a flowing state when the fitting position is bent synchronously by the bending of the wire harness 21.

[0030] When the wire harness 21 is bent as the polishing head 2 moves, the air in the air cavity 312 is compressed and discharged from the suction hole 322, so that the gap between the outer wall of the secondary sleeve 32 and the inner wall of the main sleeve 31 is blown during the air flow discharge process, reducing the problem of residual and infiltration of debris, and the spiral arranged spiral channel 311 blocks the entering debris ash during the air flow replenishment process, reducing the infiltration of debris sparks.

[0031] As a further embodiment of the utility model, a discharge port 323 is provided on the outer wall of the secondary sleeve 32, which is communicated with the suction hole 322, and the discharge port 323 is communicated and matched with the multi-turn spiral channel 311.

[0032] Specifically, the discharge port 323 covers multiple turns of the spiral channel 311, so that the air flow has a larger transmission area when acting on the spiral channel 311.

[0033] During the process of discharging air flow through the suction hole 322, the multi-turn spiral channel 311 is blown, which can effectively reduce the residual gap spark particles in the spiral channel 311 and ensure the sealing effect of the connecting position of the protective piece 3.

[0034] As another embodiment of the utility model further provided, the secondary sleeve 32 is sleeved outside the main sleeve 31, and the elastic guard strip 33 is inserted and matched with the suction hole 322.

[0035] After long-term use of the protective piece 3, the secondary sleeve 32 is pulled off from the main sleeve 31, and the secondary sleeve 32 is sleeved outside the main sleeve 31 for use, which can also make the protective piece 3 be used twice. At this time, the plurality of elastic guard strips 33 are inserted into the suction hole 322, which can make the main sleeve 31 and the secondary sleeve 32 be connected stably again, increase the use cycle of the protective piece 3 and the protection effect.

[0036] As a further embodiment of the utility model, the secondary sleeve 32 inserted and matched makes the plurality of spiral protrusions 321 abut and cooperate with the mechanical arm 1.

[0037] By using the main sleeve 31 and the secondary sleeve 32 inside and outside, the turned-out spiral protrusion 321 is at the wear position outside the protective piece 3, that is, corresponding to the wear of the spiral protrusion 321 by the mechanical arm 1, so that the spiral protrusion 321 of hard plastic has a longer wear time, and the secondary use efficiency of the protective piece 3 is higher. At the same time, the spiral channel 311 turned to the inside provides friction with the wire harness 21, increases the stability of the protective piece 3 during the secondary use process, and makes the protective piece 3 not easy to slip off.

[0038] Working principle: through the screw convex 321 on the vice sleeve 32 embedded in the screw channel 311 of the inner wall of the main sleeve 31, the protective piece 3 can provide stable outside protection function for the wire harness 21, and the screw convex 321 with two screw rings can provide double interception protection, effectively reduce the cooling of the debris spark into the inside of the protective piece 3 and cause wear to the wire harness 21, and the screw channel 311 in the rubber material of the main sleeve 31 and arranged in a spiral can also provide multi-layer blocking effect, finally the elastic guard strip 33 at the connecting position of the mechanical arm 1 and the polishing head 2 is supported and protected, effectively reducing the wear of the outer wall of the main sleeve 31 and the vice sleeve 32.

[0039] The above only describes certain exemplary embodiments of the present application by way of illustration, without doubt, for those skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present application.

Claims

1. A grinding turnable robot arm comprising a robot arm (1) provided with a grinding head (2) and a wire harness (21), characterized in that, The protective member (3) is sleeved outside the wire harness (21), and is divided into a main sleeve (31) and a secondary sleeve (32) according to functions; A screw channel (311) is arranged in the inner side of the main sleeve (31), a plurality of screw convexes (321) are fixedly sleeved on the outer side wall of the secondary sleeve (32) and are embeddedly connected with the screw channel (311), and a plurality of elastic guard strips (33) are circumferentially arranged on the outer side wall of the main sleeve (31) and abut against the end of the mechanical arm (1).

2. The polishing flipper arm of claim 1, wherein, The main sleeve (31), the secondary sleeve (32) and the wire harness (21) are matched to form an air cavity (312), and a suction hole (322) is arranged in the end of the secondary sleeve (32) and is communicated with the air cavity (312).

3. A polishing flipper arm according to claim 2, wherein, A discharge port (323) is arranged in the outer side wall of the secondary sleeve (32) and is communicated with the suction hole (322).

4. A polishing flipper arm according to claim 3, wherein, The secondary sleeve (32) is sleeved outside the main sleeve (31), so that the elastic guard strips (33) are insertedly matched with the suction hole (322).

5. A polishing flipper arm according to claim 4, wherein, The secondary sleeve (32) in the inserted matching state makes the plurality of screw convexes (321) abut against the mechanical arm (1).

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