Polishing device for elevator door plate welding spots

Abstract

The utility model relates to the technical field of elevator door plate welding spots, and discloses a polishing device for elevator door plate welding spots, and movable cleaning mechanisms are arranged on the front side and the rear side of a bottom plate. A cleaning mechanism is moved, a first motor is started, a screw is made to rotate, the screw rotates to drive a movable frame to move left and right, the movable frame is moved to the leftmost end above a bottom plate, then an elevator door is fixed to the top of the bottom plate, an air cylinder is started, and a fixed plate moves downwards; a fixing plate can drive a third connecting frame and a fourth connecting frame to move downwards, the third connecting frame moves downwards to make the bottom of a cleaning block make contact with the elevator door, then a moving frame moves rightwards through work of a first motor, and the third connecting frame moves rightwards to drive the cleaning block to move rightwards; and dust, dirt and other impurities on the surface of the elevator door are cleaned, the polishing effect of a polishing roller on welding spots on the surface of the elevator door is better, a second motor is started while a moving frame moves rightwards, and the polishing roller rotates.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator door panel welding points, in particular to a grinding device for elevator door panel welding points. Background Art

[0002] When the welding points of elevator door panels are manually polished, the polishing work is time-consuming and laborious, and is affected by the limitation and instability of manual skills. The efficiency of manual polishing is low, and the appearance quality of the polished welding points is unstable, making it difficult for elevator door panels to meet the acceptance standards.

[0003] According to case application number 201811036837.6, a grinding device for welding points of elevator door panels includes a base, a support frame is provided on the base, a guide roller is provided on the support frame, a lifting plate is provided below the guide roller, a clamping motor is provided on the lifting plate, a lead screw is connected to the clamping motor, a slide rail is provided below the lead screw, two sliders are connected to the slide rail, the two sliders are respectively provided with threaded holes matching the lead screw, the threads of the threaded holes on the two sliders are in opposite directions, clamping block mounting plates are respectively provided on the tops of the two sliders, the two clamping block mounting plates are respectively connected with clamping blocks through pin shafts, and each clamping block can extend from the gap between adjacent guide rollers, a flipping motor is provided on the outer side of one of the clamping block mounting plates, and the flipping motor is connected to a first bevel gear through a rotating shaft, and the shaft pin extends to the outer side of the clamping block mounting plate and is provided with a second bevel gear meshing with the first bevel gear.

[0004] In this case, the welding points on the surface of the elevator door were polished by grinding sandpaper. However, when the elevator door is produced, its surface will contain dirt and other impurities, which will affect the grinding of the welding points on the surface of the elevator door by the grinding sandpaper, resulting in poor grinding effect. Utility Model Content

[0005] The purpose of the utility model is to provide a grinding device for elevator door panel welding points to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a grinding device for welding points of elevator door panels, comprising a bottom plate, a support leg is fixedly connected to the bottom of the bottom plate, a movable cleaning mechanism is arranged at the front and rear sides of the bottom plate, and a fixing mechanism is arranged at the bottom of the bottom plate;

[0007] The mobile cleaning mechanism comprises a mobile component and a cleaning component. The mobile component is arranged at the front and rear sides of the bottom plate, and the cleaning component is arranged inside the mobile component.

[0008] Preferably, the movable assembly includes a first connecting frame and a second connecting frame, the first connecting frame is fixedly connected to the back side of the base plate, the second connecting frame is fixedly connected to the front side of the base plate, a screw rod is rotatably connected to the left side of the first connecting frame, a motor is fixedly connected to the right side of the first connecting frame, a movable frame is threadedly connected to the surface of the screw rod, and limiting rods are fixedly connected to the left and right sides of the second connecting frame.

[0009] Preferably, the right end of the screw is fixedly connected to the output end of the first motor, and the front end of the movable frame is slidably connected to the surface of the limiting rod, and the limiting rod limits the movable frame so that the movable frame can only move left and right with the rotation of the screw.

[0010] Preferably, the cleaning assembly includes a cylinder, the cylinder is fixedly connected to the top of the moving frame, the cylinder output end is fixedly connected to a fixed plate, the front and rear sides of the top of the moving frame are fixedly connected to sliding sleeves, the sliding sleeves are slidably connected to sliding rods, the right side of the bottom plate of the fixed plate is fixedly connected to a third connecting frame, the bottom of the third connecting frame is slidably connected to a connecting rod, the top of the connecting rod is fixedly connected to a connecting plate, the top of the connecting plate is fixedly connected to a spring, the bottom end of the connecting rod is fixedly connected to a cleaning block, the left side of the bottom of the fixed plate is fixedly connected to a fourth connecting frame, the back side of the fourth connecting frame is rotatably connected to a grinding roller, and the front side of the fourth connecting frame is fixedly connected to a second motor.

[0011] Preferably, the bottom end of the sliding sleeve extends into the movable frame, the bottom end of the sliding rod is fixedly connected to the top of the fixed plate, the bottom end of the connecting rod extends to the bottom of the third connecting frame, the top end of the spring is fixedly connected to the bottom of the fixed plate, and the front end of the grinding roller is fixedly connected to the output end of the second motor. The sliding sleeve and the sliding rod can make the movement of the fixed plate more stable.

[0012] Preferably, the fixing mechanism includes a slide groove, which is opened at the bottom of the base plate, a bidirectional screw is rotatably connected to the left side of the slide groove, a third motor is fixedly connected to the right side of the base plate, a T-block is threadedly connected to the surface of the bidirectional screw near the left end, an L-block is symmetrically fixedly connected to the left side of the T-block, and a connecting block is fixedly connected to the right side of the L-block near the top.

[0013] Preferably, the right end of the bidirectional screw is fixedly connected to the output end of the third motor, the top end of the T-block is slidably connected in the slide groove, and there are two groups of T-blocks, L-blocks and connecting blocks, which are symmetrically arranged on the surface of the bidirectional screw. Since the top end of the T-block is slidably connected in the slide groove, the two T-blocks can only move toward each other as the bidirectional screw rotates.

[0014] Compared with the prior art, the utility model provides a grinding device for elevator door panel welding points, which has the following beneficial effects:

[0015] 1. The grinding device for the welding point of the elevator door panel starts the first motor through the mobile cleaning mechanism to rotate the screw, and the rotation of the screw drives the moving frame to move left and right, and moves the moving frame to the leftmost end above the bottom plate, and then fixes the elevator door on the top of the bottom plate, and then starts the cylinder to move the fixed plate downward, and the fixed plate drives the third connecting frame and the fourth connecting frame to move downward, and the downward movement of the third connecting frame causes the bottom of the cleaning block to contact the elevator door, and then the moving frame moves to the right through the operation of the first motor, and the right movement of the third connecting frame drives the cleaning block to move to the right, and the cleaning block is subjected to the elastic force of the spring to more closely contact the surface of the elevator door, and dust, dirt and other impurities on the surface of the elevator door are cleaned, so that the grinding roller has a better effect on grinding the welding point on the surface of the elevator door, and the second motor is started while the moving frame moves to the right to rotate the grinding roller.

[0016] 2. The grinding device for the welding points of elevator door panels places the elevator door on the top of the bottom plate through a fixing mechanism, and then starts the third motor to rotate the bidirectional screw. The rotation of the bidirectional screw will drive the two T-blocks to move toward each other, thereby causing the two connecting blocks to move toward each other to fix and clamp the elevator door. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0018] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the mobile component of the structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the cleaning components of the utility model structure;

[0021] Figure 4 It is a three-dimensional schematic diagram of the cleaning components of the utility model structure;

[0022] Figure 5 It is a three-dimensional schematic diagram of the grinding components of the structure of the utility model;

[0023] Figure 6 It is a schematic diagram of the structural fixing mechanism of the utility model.

[0024] In the figure: 1, bottom plate; 2, supporting leg; 3, mobile cleaning mechanism; 31, mobile assembly; 311, first connecting frame; 312, screw; 313, first motor; 314, mobile frame; 315, second connecting frame; 316, limit rod; 32, cleaning assembly; 321, cylinder; 322, sliding sleeve; 323, sliding rod; 324, fixed plate; 325, third connecting frame; 3213, connecting plate; 327, spring; 328, cleaning block; 329, fourth connecting frame; 3211, grinding roller; 3212, second motor; 4, fixing mechanism; 41, slide groove; 42, bidirectional screw; 43, third motor; 44, T-block; 45, L-block; 46, connecting block. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The utility model provides the following technical solutions:

[0028] Embodiment 1

[0029] See also Figure 1-5 The utility model provides a technical solution: a grinding device for welding points of elevator door panels, comprising a bottom plate 1, a supporting leg 2 is fixedly connected to the bottom of the bottom plate 1, a mobile cleaning mechanism 3 is arranged at the front and rear sides of the bottom plate 1, and a fixing mechanism 4 is arranged at the bottom of the bottom plate 1;

[0030] The mobile cleaning mechanism 3 includes a mobile component 31 and a cleaning component 32 . The mobile component 31 is arranged at the front and rear sides of the bottom plate 1 , and the cleaning component 32 is arranged inside the mobile component 31 .

[0031] The moving assembly 31 includes a first connecting frame 311 and a second connecting frame 315. The first connecting frame 311 is fixedly connected to the back side of the base plate 1, and the second connecting frame 315 is fixedly connected to the front side of the base plate 1. A screw rod 312 is rotatably connected to the left side of the first connecting frame 311, and a motor is fixedly connected to the right side of the first connecting frame 311. A moving frame 314 is threadedly connected to the surface of the screw rod 312. Limiting rods 316 are fixedly connected to the left and right sides of the second connecting frame 315.

[0032] The right end of the screw rod 312 is fixedly connected to the output end of the first motor 313 , and the front end of the moving frame 314 is slidably connected to the surface of the limiting rod 316 . The limiting rod 316 limits the moving frame 314 so that the moving frame 314 can only move left and right as the screw rod 312 rotates.

[0033] The cleaning assembly 32 includes a cylinder 321, which is fixedly connected to the top of the moving frame 314. The output end of the cylinder 321 is fixedly connected to a fixed plate 324. The front and rear sides of the top of the moving frame 314 are fixedly connected to a sliding sleeve 322. A sliding rod 323 is slidably connected to the sliding sleeve 322. A third connecting frame 325 is fixedly connected to the right side of the bottom plate 1 of the fixed plate 324. A connecting rod 326 is slidably connected to the bottom of the third connecting frame 325. A connecting plate 3213 is fixedly connected to the top of the connecting rod 326. A spring 327 is fixedly connected to the top of the connecting plate 3213. A cleaning block 328 is fixedly connected to the bottom end of the connecting rod 326. A fourth connecting frame 329 is fixedly connected to the left side of the bottom of the fixed plate 324. A grinding roller 3211 is rotatably connected to the back of the fourth connecting frame 329. A second motor 3212 is fixedly connected to the front of the fourth connecting frame 329.

[0034] The bottom end of the sleeve 322 extends into the movable frame 314, the bottom end of the slide rod 323 is fixedly connected to the top of the fixed plate 324, the bottom end of the connecting rod 326 extends to the bottom of the third connecting frame 325, the top end of the spring 327 is fixedly connected to the bottom of the fixed plate 324, and the front end of the grinding roller 3211 is fixedly connected to the output end of the second motor 3212. The sleeve 322 and the slide rod 323 can make the movement of the fixed plate 324 more stable.

[0035] Embodiment 2

[0036] See also Figure 6 , and on the basis of the first embodiment, a fixing mechanism 4 is further obtained.

[0037] The fixing mechanism 4 includes a slide groove 41, which is opened at the bottom of the base plate 1. A bidirectional screw rod 42 is rotatably connected to the left side of the slide groove 41. A third motor 43 is fixedly connected to the right side of the base plate 1. A T-block 44 is threadedly connected to the surface of the bidirectional screw rod 42 near the left end. An L-block 45 is symmetrically fixedly connected to the left side of the T-block 44. A connecting block 46 is fixedly connected to the right side of the L-block 45 near the top.

[0038] The right end of the bidirectional screw 42 is fixedly connected to the output end of the third motor 43, and the top end of the T-block 44 is slidably connected to the slide groove 41. There are two groups of T-blocks 44, L blocks 45 and connecting blocks 46, and they are symmetrically arranged on the surface of the bidirectional screw 42. Since the top end of the T-block 44 is slidably connected to the slide groove 41, the two T-blocks 44 can only move towards each other as the bidirectional screw 42 rotates.

[0039] In actual operation, when the device is used, the first motor 313 is started to rotate the screw rod 312, and the rotation of the screw rod 312 drives the movable frame 314 to move left and right, and the movable frame 314 is moved to the leftmost end above the bottom plate 1, and then the elevator door is fixed on the top of the bottom plate 1, and then the cylinder 321 is started to move the fixed plate 324 downward, and the fixed plate 324 will drive the third connecting frame 325 and the fourth connecting frame 329 to move downward, and the downward movement of the third connecting frame 325 will cause the bottom of the cleaning block 328 to move downward. The first motor 313 then moves the moving frame 314 to the right, and the third connecting frame 325 moves to the right, which drives the cleaning block 328 to move to the right. The cleaning block 328 is more closely in contact with the surface of the elevator door due to the elastic force of the spring 327, so as to clean the dust, dirt and other impurities on the surface of the elevator door, so that the grinding roller 3211 can grind the welding points on the surface of the elevator door better. When the moving frame 314 moves to the right, the second motor 3212 is started to rotate the grinding roller 3211.

[0040] The elevator door is placed on the top of the bottom plate 1, and then the third motor 43 is started to rotate the bidirectional screw 42. The rotation of the bidirectional screw 42 drives the two T-blocks 44 to move toward each other, thereby causing the two connecting blocks 46 to move toward each other to fix and clamp the elevator door.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A grinding device for welding points of elevator door panels, comprising a bottom plate (1), characterized in that: The bottom of the base plate (1) is fixedly connected to a supporting leg (2), a movable cleaning mechanism (3) is provided on the front and rear sides of the base plate (1), and a fixing mechanism (4) is provided at the bottom of the base plate (1); The mobile cleaning mechanism (3) comprises a mobile component (31) and a cleaning component (32), wherein the mobile component (31) is arranged on the front and rear sides of the bottom plate (1), and the cleaning component (32) is arranged inside the mobile component (31); The cleaning assembly (32) comprises a cylinder (321), wherein the cylinder (321) is fixedly connected to the top of the moving frame (314), the output end of the cylinder (321) is fixedly connected to a fixed plate (324), the front and rear sides of the top of the moving frame (314) are fixedly connected to sliding sleeves (322), a sliding rod (323) is slidably connected up and down in the sliding sleeves (322), a third connecting frame (325) is fixedly connected to the right side of the bottom plate (1) of the fixing plate (324), and the bottom of the third connecting frame (325) is slidably connected up and down A connecting rod (326) is provided, the top end of the connecting rod (326) is fixedly connected to a connecting plate (3213), the top of the connecting plate (3213) is fixedly connected to a spring (327), the bottom end of the connecting rod (326) is fixedly connected to a cleaning block (328), the bottom left side of the fixed plate (324) is fixedly connected to a fourth connecting frame (329), the back side of the fourth connecting frame (329) is rotatably connected to a grinding roller (3211), and the front side of the fourth connecting frame (329) is fixedly connected to a second motor (3212).

2. A grinding device for elevator door panel welding points according to claim 1, characterized in that: The moving assembly (31) comprises a first connecting frame (311) and a second connecting frame (315), wherein the first connecting frame (311) is fixedly connected to the back side of the base plate (1), and the second connecting frame (315) is fixedly connected to the front side of the base plate (1); a screw rod (312) is rotatably connected to the left side of the first connecting frame (311), a motor is fixedly connected to the right side of the first connecting frame (311), a moving frame (314) is threadedly connected to the surface of the screw rod (312), and limit rods (316) are fixedly connected to the left and right sides of the second connecting frame (315).

3. A grinding device for elevator door panel welding points according to claim 2, characterized in that: The right end of the screw rod (312) is fixedly connected to the output end of the first motor (313), and the front end of the moving frame (314) is slidably connected to the surface of the limiting rod (316).

4. The grinding device for elevator door panel welding points according to claim 1, characterized in that: The bottom end of the sliding sleeve (322) extends into the movable frame (314), the bottom end of the sliding rod (323) is fixedly connected to the top of the fixed plate (324), the bottom end of the connecting rod (326) extends to the bottom of the third connecting frame (325), the top end of the spring (327) is fixedly connected to the bottom of the fixed plate (324), and the front end of the grinding roller (3211) is fixedly connected to the output end of the second motor (3212).

5. The grinding device for elevator door panel welding points according to claim 1, characterized in that: The fixing mechanism (4) comprises a slide groove (41), wherein the slide groove (41) is provided at the bottom of the base plate (1), a bidirectional screw rod (42) is rotatably connected to the left side of the slide groove (41), a third motor (43) is fixedly connected to the right side of the base plate (1), a T-shaped block (44) is threadedly connected to the surface of the bidirectional screw rod (42) near the left end, an L-shaped block (45) is fixedly connected to the left side of the T-shaped block (44) in a front-to-rear symmetrical manner, and a connecting block (46) is fixedly connected to the right side of the L-shaped block (45) near the top.

6. A grinding device for elevator door panel welding points according to claim 5, characterized in that: The right end of the bidirectional screw (42) is fixedly connected to the output end of the third motor (43), and the top end of the T-shaped block (44) is slidably connected to the slide groove (41). There are two groups of the T-shaped block (44), the L block (45) and the connecting block (46), which are symmetrically arranged on the surface of the bidirectional screw (42).

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