Windshield glass centering and clamping device

Abstract

The utility model discloses a windscreen centering and clamping device which comprises a centering reference support, an X-direction centering mechanism and a Y-direction centering mechanism, wherein the X-direction centering mechanism and the Y-direction centering mechanism are arranged on the centering reference support. The X-direction centering mechanism comprises a first rodless air cylinder, a first centering blocking column assembly, a first synchronous belt, a first rotary encoder and a first auxiliary connecting piece. The Y-direction centering mechanism comprises a second rodless air cylinder, a second centering blocking column assembly, a second synchronous belt, a second rotary encoder and a second auxiliary connecting piece. According to the utility model, the rotary encoder and the synchronous belt are arranged, so that the running speed and stroke data of the middle-holding stop column assembly can be obtained during centering and clamping, the subsequent propulsion process of the air cylinder is further optimized and controlled, the centering control precision is improved, and the extensibility of the synchronous belt reduces the impact and friction caused by rigid centering. Therefore, the abrasion of the blocking cylinder is reduced, and the precision influence caused by rigidity on the aging of the neutralizing device is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of glass glue coating equipment, in particular to a windshield glass centering clamping device. Background Art

[0002] Windshield gluing is an important process in automobile manufacturing. The automatic gluing robot arm performs the gluing work according to the operating program written by the automation engineer. The accuracy of windshield positioning directly affects the quality of gluing. In the glass gluing process in the prior art, a gluing machine centering device is used to push and guide the glass to the accurate position and clamp it through movable centering components set in multiple directions, thereby ensuring the quality of gluing. For example, Chinese patent document CN210922552U discloses a car glass centering device, which drives the gear through a cylinder and uses the meshing of the gear and the rack to achieve the hard centering of the relative limiting wheel assembly. Common centering components are driven by their respective driving mechanisms, or a single drive plus connecting rod and rack transmission. After long-term use, the wear conditions of each driving mechanism and transmission mechanism are different, and the driving accuracy of each driving mechanism also changes accordingly. Moreover, during centering and clamping, there is a certain tangential rolling friction and axial sliding friction between the windshield and each retaining cylinder. Therefore, as time goes by, the side walls of each retaining cylinder used in the centering mechanism of the glue coating equipment will always be worn to a certain extent, and the circumferential surface after wear will be uneven. This situation will affect the automatic recognition of the glue coating equipment and the accuracy of the clamping centering. Therefore, it is particularly important to reduce the accuracy impact caused by hard centering and equipment aging. To achieve this, it is necessary to collect the running speed and stroke data of each retaining cylinder during centering in order to further optimize the control and improve the accuracy of the centering control. Utility Model Content

[0003] The purpose of the utility model is to address the deficiencies in the above-mentioned prior art and provide a windshield centering clamping device, which can obtain the running speed and stroke data of each baffle cylinder during centering clamping, so as to further optimize the subsequent propulsion process of the cylinder and improve the centering control accuracy.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0005] A windshield centering clamping device comprises a centering reference bracket and an X-direction centering mechanism and a Y-direction centering mechanism arranged on the centering reference bracket; the X-direction centering mechanism comprises a first rodless cylinder, a first center-end column assembly, a first synchronous belt, a first rotary encoder and a first auxiliary connecting member, the first auxiliary connecting member is slidably connected to two first center-end column assemblies arranged opposite to each other, the first auxiliary connecting member is provided with the first synchronous belt, a rotating wheel connected to the first synchronous belt is provided with a first rotary encoder, the two first center-end column assemblies are fixedly connected to the opposite sides of the first synchronous belt respectively, The first rodless cylinder is connected to one of the first mid-range column assemblies; the Y-axis centering mechanism includes a second rodless cylinder, a second mid-range column assembly, a second synchronous belt, a second rotary encoder and a second auxiliary connecting member, the second auxiliary connecting member is slidably connected to two second mid-range column assemblies arranged opposite to each other, the second auxiliary connecting member is provided with the second synchronous belt, a second rotary encoder is provided on a rotating wheel connected to the second synchronous belt, the two second mid-range column assemblies are respectively fixedly connected to the opposite sides of the second synchronous belt, and the second rodless cylinder is connected to one of the second mid-range column assemblies.

[0006] Preferably, the first centering column assembly includes a first stop cylinder, a side stop cylinder, a first centering reference plate and a swing shaft, the side stop cylinder and the swing shaft are arranged on the first centering reference plate, and the swing shaft connects the first stop cylinder and the side stop cylinder.

[0007] Preferably, the second centering stop column assembly includes a second stop cylinder and a second centering reference plate, and the second stop cylinder is arranged on the second centering reference plate.

[0008] Preferably, the first retaining cylinder and the second retaining cylinder are made of nylon.

[0009] Preferably, the first retaining cylinder and the second retaining cylinder are segmented and detachable structures.

[0010] Preferably, the windshield centering clamping device also includes a lifting suction cup assembly, which includes a top column assembly, a detection switch and a lifting assembly; the top column assembly includes a first lifting cylinder and a top column head; the lifting assembly includes a second lifting cylinder, a mounting plate assembly and a suction cup; the detection switch and the suction cup are arranged on the upper part of the mounting plate assembly, and the second lifting cylinder is connected to the mounting plate assembly.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model can obtain the running speed and stroke data of the center-holding column assembly during centering and clamping by setting a rotary encoder and a synchronous belt, so as to further optimize the control of the cylinder's propulsion process and improve the centering control accuracy. In addition, the extensibility of the synchronous belt reduces the impact and friction caused by rigid centering, thereby reducing the wear of the retaining cylinder and the accuracy impact caused by rigid centering and equipment aging. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solution of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of the structure of the windshield centering and clamping device of the utility model;

[0015] Figure 2 for Figure 1 Sectional view at AA in the middle;

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the X-axis centering mechanism;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the Y-axis centering mechanism;

[0018] Figure 5 It is a schematic diagram of the three-dimensional structure of the lifting suction cup assembly.

[0019] Description of reference numerals:

[0020] 1. Centering reference bracket;

[0021] 2. X-axis centering mechanism; 21. first rodless cylinder; 22. first centering column assembly; 221. first stopper cylinder; 222. side stopper cylinder; 223. first centering reference plate; 224. swing shaft; 23. first synchronous belt; 24. first rotary encoder; 25. first auxiliary connecting member;

[0022] 3. Y-axis centering mechanism; 31. second rodless cylinder; 32. second centering column assembly; 321. second stopper cylinder; 322. second centering reference plate; 33. second synchronous belt; 34. second rotary encoder; 35. second auxiliary connecting member;

[0023] 4. Lifting suction cup assembly; 41. Top column assembly; 411. First lifting cylinder; 412. Top column head; 42. Detection switch; 43. Lifting assembly; 431. Second lifting cylinder; 432. Mounting plate assembly; 433. Suction cup.

[0024] 5. Line transmission mechanism. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] like Figures 1 to 4 As shown, a windshield centering clamping device comprises a centering reference bracket 1 and an X-direction centering mechanism 2 and a Y-direction centering mechanism 3 arranged on the centering reference bracket 1; the X-direction centering mechanism 2 comprises a first rodless cylinder 21, a first center-end column assembly 22, a first synchronous belt 23, a first rotary encoder 24 and a first auxiliary connecting member 25, the first auxiliary connecting member 25 is slidably connected to two first center-end column assemblies 22 arranged opposite to each other, the first auxiliary connecting member 25 is provided with the first synchronous belt 23, a rotating wheel connected to the first synchronous belt 23 is provided with the first rotary encoder 24, the two first center-end column assemblies 22 are respectively fixedly connected to the opposite sides of the first synchronous belt 23, The first rodless cylinder 21 is connected to one of the first mid-range column assemblies 22; the Y-axis centering mechanism 3 includes a second rodless cylinder 31, a second mid-range column assembly 32, a second synchronous belt 33, a second rotary encoder 34 and a second auxiliary connecting member 35, the second auxiliary connecting member 35 is slidably connected to two second mid-range column assemblies 32 arranged opposite to each other, the second auxiliary connecting member 35 is provided with the second synchronous belt 33, a second rotary encoder 34 is provided on a rotating wheel connected to the second synchronous belt 33, the two second mid-range column assemblies 32 are respectively fixedly connected to the opposite sides of the second synchronous belt 33, and the second rodless cylinder 31 is connected to one of the second mid-range column assemblies 32.

[0027] like Figure 3 As shown, the first centering column assembly 22 includes a first block cylinder 221, a side block cylinder 222, a first centering reference plate 223 and a swing shaft 224, and the side block cylinder 222 and the swing shaft 224 are arranged on the first centering reference plate 223, and the swing shaft 224 connects the first block cylinder 221 and the side block cylinder 222.

[0028] like Figure 4 As shown, the second centering column assembly 32 includes a second stop cylinder 321 and a second centering reference plate 322, and the second stop cylinder 321 is arranged on the second centering reference plate 322.

[0029] The first retaining cylinder 221 and the second retaining cylinder 321 are made of nylon.

[0030] The first retaining cylinder 221 and the second retaining cylinder 321 are segmented and detachable structures, which are easy to replace.

[0031] like Figure 5 As shown, the windshield centering clamping device also includes a lifting suction cup assembly 4, and the lifting suction cup assembly 4 includes a top column assembly 41, a detection switch 42 and a lifting assembly 43; the top column assembly 41 includes a first lifting cylinder 411 and a top column head 412; the lifting assembly 43 includes a second lifting cylinder 431, a mounting plate assembly 432 and a suction cup 433; the detection switch 42 and the suction cup 433 are arranged on the upper part of the mounting plate assembly 432, and the second lifting cylinder 431 is connected to the mounting plate assembly 432.

[0032] When the windshield centering clamping device is used: the worker places the windshield on the line conveying mechanism 5, and when the line conveying mechanism 5 conveys the windshield to the top of the lifting suction cup assembly 4, after the detection switch 42 detects the glass, the line conveying mechanism 5 stops conveying, the first lifting cylinder 411 extends, and the top column head 412 lifts the glass. The side blocking cylinder 222 in the X-axis centering mechanism 2 retracts, and the first blocking cylinder 221 is raised. The first rodless cylinder 21 operates to push the first holding middle column assembly 22 and drives the first holding middle column assembly 22 on the opposite side to move toward each other through the first synchronous belt 23 for centering. The first blocking cylinder 221 arranged oppositely centers and tightens the windshield. At the same time, the second rodless cylinder 31 in the Y-axis centering mechanism 3 operates to push the second holding middle column assembly 32 and drives the second holding middle column assembly 32 on the opposite side to move toward each other through the second synchronous belt 33 for centering. The second blocking cylinder 321 arranged oppositely centers and tightens the windshield. After the glass is centered, the second lifting cylinder 431 rises, driving the mounting plate assembly 432 to move, and finally the suction cup 433 sucks the glass. The first rodless cylinder 21, the second rodless cylinder 31, the side block cylinder 222, and the first lifting cylinder 411 return to their original positions, completing the return of the X-axis centering mechanism 2, the Y-axis centering mechanism 3, and the top column assembly 41. Then, the gluing work is performed, and the gluing work of the windshield centering is completed.

[0033] Each time the centering is completed, the first rotary encoder 24 and the second rotary encoder 34 can respectively detect and feedback the rotation speed and stroke of the first synchronous belt 23 and the second synchronous belt 33, so as to facilitate the subsequent optimization control of the cylinder propulsion process and improve the centering control accuracy.

[0034] The running state of each retaining cylinder, i.e., the running speed and stroke data, can be derived from the rotation speed and stroke of the first synchronous belt 23 and the second synchronous belt 33. In the next cycle, the control system can adjust the air supply volume and air supply pressure of the first rodless cylinder 21 and the second rodless cylinder 31 respectively, so as to reduce the tangential rolling friction and axial sliding friction. In addition, the ductility of the synchronous belt reduces the impact and friction caused by rigid hard centering, thereby reducing the wear of the retaining cylinder and reducing the accuracy impact caused by hard centering and equipment aging.

[0035] The above embodiments of the utility model are described in detail through examples, but the contents described are only exemplary embodiments of the utility model embodiments and cannot be considered to limit the scope of implementation of the utility model embodiments. The protection scope of the utility model embodiments is defined by the claims. Anyone who utilizes the technical solutions described in the utility model embodiments, or who is inspired by the technical solutions of the utility model embodiments, designs similar technical solutions within the essence and protection scope of the utility model embodiments to achieve the above technical effects, or who makes equal changes and improvements to the scope of application, shall still be included in the protection scope of the patent coverage of the utility model embodiments.

Claims

1. A windshield centering clamping device, characterized in that: The invention comprises a centering reference bracket (1) and an X-direction centering mechanism (2) and a Y-direction centering mechanism (3) arranged on the centering reference bracket (1); the X-direction centering mechanism (2) comprises a first rodless cylinder (21), a first centering column assembly (22), a first synchronous belt (23), a first rotary encoder (24) and a first auxiliary connecting member (25); the first auxiliary connecting member (25) is slidably connected to two first centering column assemblies (22) arranged opposite to each other; the first auxiliary connecting member (25) is provided with the first synchronous belt (23); a rotating wheel connected to the first synchronous belt (23) is provided with the first rotary encoder (24); the two first centering column assemblies (22) are respectively fixedly connected to the opposite sides of the first synchronous belt (23); the first rodless cylinder (21) is provided with a first rotating wheel connected to the first synchronous belt (23); the first rotating wheel connected to the first rotating wheel (23) is provided with a first rotary encoder (24); the two first centering column assemblies (22) are respectively fixedly connected to the opposite sides of the first synchronous belt (23); the first rodless cylinder (21) is provided with a first rotating wheel connected to the first rotating wheel (23); the first rotating wheel connected to the first rotating wheel (23) is provided with a first rotating wheel (24 ... (21) is connected to one of the first mid-range column assemblies (22); the Y-axis centering mechanism (3) comprises a second rodless cylinder (31), a second mid-range column assembly (32), a second synchronous belt (33), a second rotary encoder (34) and a second auxiliary connecting member (35); the second auxiliary connecting member (35) is slidably connected to two second mid-range column assemblies (32) arranged opposite to each other; the second auxiliary connecting member (35) is provided with the second synchronous belt (33); a second rotary encoder (34) is provided on a rotating wheel connected to the second synchronous belt (33); the two second mid-range column assemblies (32) are respectively fixedly connected to the opposite sides of the second synchronous belt (33); the second rodless cylinder (31) is connected to one of the second mid-range column assemblies (32).

2. The windshield centering clamping device according to claim 1, characterized in that: The first centering column assembly (22) comprises a first block cylinder (221), a side block cylinder (222), a first centering reference plate (223) and a swing shaft (224); the side block cylinder (222) and the swing shaft (224) are arranged on the first centering reference plate (223); and the swing shaft (224) connects the first block cylinder (221) and the side block cylinder (222).

3. The windshield centering clamping device according to claim 2, characterized in that: The second centering column assembly (32) comprises a second stop cylinder (321) and a second centering reference plate (322), wherein the second stop cylinder (321) is arranged on the second centering reference plate (322).

4. The windshield centering clamping device according to claim 3, characterized in that: The first retaining cylinder (221) and the second retaining cylinder (321) are made of nylon.

5. The windshield centering clamping device according to claim 4, characterized in that: The first retaining cylinder (221) and the second retaining cylinder (321) are segmented and detachable structures.

6. The windshield centering clamping device according to claim 1, characterized in that: The invention also comprises a lifting suction cup assembly (4), wherein the lifting suction cup assembly (4) comprises a top column assembly (41), a detection switch (42) and a lifting assembly (43); the top column assembly (41) comprises a first lifting cylinder (411) and a top column head (412); the lifting assembly (43) comprises a second lifting cylinder (431), a mounting plate assembly (432) and a suction cup (433); the detection switch (42) and the suction cup (433) are arranged on the upper part of the mounting plate assembly (432), and the second lifting cylinder (431) is connected to the mounting plate assembly (432).

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