Flexible assembly welding clamp for bent plate and cover plate

Abstract

The utility model relates to the technical field of welding clamps, and discloses a bending plate and cover plate flexible assembly welding clamp which comprises a mechanism body assembly, a head end movable pressing assembly, a centering driving assembly, a middle fixed pressing assembly and a tail end movable pressing assembly. The centering driving assembly, the middle fixing and pressing assembly and the mechanism body assembly are fixedly connected through bolts, and the mechanism body assembly is composed of a body frame, a first linear guide rail and a second linear guide rail. According to the utility model, an assembling and welding integrated tool is adopted, a servo motor and a hydraulic system are controlled by a plc system to adjust a clamp positioning and clamping module, a sensor system detects information of materials, rapid remodeling can be realized, flexible production can be realized, in the welding process, the clamp can be automatically opened and clamped, all welding seams can be welded at one time, and the production efficiency is improved. The automatic welding device is high in positioning precision and good in consistency, the welding quality is effectively guaranteed, flexible, intelligent and efficient production is achieved, and the automatic welding device is practical and suitable for wide application and popularization.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding fixtures, and in particular relates to a flexible assembly welding fixture for a bending plate and a cover plate. Background Art

[0002] When processing bent plates and cover plates, the current method used for workpieces such as bent plates and cover plates is manual positioning spot welding and welding by special welding machines. If the product is changed, it is necessary to manually adjust the clamping component module and the position of the special welding machine, which is time-consuming and inefficient, and is not conducive to the flexible production of various models. In view of this, the utility model is specially proposed to provide a bending plate and cover plate flexible assembly welding fixture to solve the above problems. Utility Model Content

[0003] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0004] A bending plate and cover plate flexible assembly butt welding fixture, including a mechanism body component, a head end moving clamping component, a centering drive component, an intermediate fixed clamping component and a tail end moving clamping component, the centering drive component, the intermediate fixed clamping component and the mechanism body component are bolted and fixedly connected, the mechanism body component is composed of a body frame, a linear guide rail 1 and a linear guide rail 2, the linear guide rail 2 and the body frame are bolted, the head end moving clamping component is composed of a slide plate, a slider, a rotating clamping component, a cover plate positioning component, a bending plate positioning support component and an end positioning and clamping assembly, the rotating clamping assembly is composed of a mounting seat 1, an in-place detection sensor, a cylinder 1, a guide shaft 1, a clamping arm and a contoured positioning block, the cover plate positioning assembly is composed of a mounting seat 2, a cylinder 2, a guide shaft 2, a sleeve, a positioning block, an in-place detection sensor 1 and an in-place detection sensor 2, the bending plate positioning support assembly is composed of a mounting seat 3, a support seat and a proximity switch sensor 1, the end positioning and clamping assembly is composed of a mounting seat 4, a corner cylinder, a pressure plate, a proximity switch sensor 2 and an end positioning block.

[0005] As a preferred implementation mode of the present utility model, the support seat positions and supports the workpiece, and the proximity switch sensor detects the presence or absence of the workpiece.

[0006] As a preferred embodiment of the utility model, the tail end movable clamping assembly has the same structure as the head end movable clamping assembly, and the sliders of the head end movable clamping assembly and the tail end movable clamping assembly are slidably connected with the linear guide rails 1 and 2 on the mechanism body assembly.

[0007] As a preferred embodiment of the utility model, the centering drive assembly is composed of a servo motor, a reducer, a reducer mounting seat, a coupling, a screw fixing seat, a positive screw nut seat, a trapezoidal centering screw, a negative screw nut seat and a screw support seat.

[0008] As a preferred embodiment of the present utility model, the centering drive assembly drives the head-end movable clamping assembly and the tail-end movable clamping assembly through a servo motor to center the workpiece in the length direction, and the bending plate positioning support assembly of the head-end movable clamping assembly and the tail-end movable clamping assembly and the bending plate positioning support seat of the middle fixed clamping assembly position the bending plate in the width direction.

[0009] As a preferred embodiment of the utility model, the cover plate positioning assembly of the head end movable clamping assembly and the tail end movable clamping assembly positions the cover plate in the width direction, the end positioning clamping assembly and the middle fixed clamping assembly of the head end movable clamping assembly and the tail end movable clamping assembly clamp the workpiece in the vertical direction, and the rotating clamping assembly of the head end movable clamping assembly and the tail end movable clamping assembly clamps the workpiece in the width direction.

[0010] As a preferred embodiment of the utility model, the intermediate fixed clamping assembly is composed of a mounting seat five, a bending plate positioning support seat, a pressure arm, a cylinder mounting seat and a cylinder three. The bending plate positioning support seat positions and supports the workpiece, and the cylinder three controls the rotation of the pressure arm.

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

[0012] The utility model adopts an integrated welding tool, controls the servo motor and the hydraulic system through the PLC system to adjust the fixture positioning and clamping module, and the sensor system detects the information of the material, which can quickly change the model and realize flexible production. In the welding process, the fixture can be automatically opened and clamped, and all welds can be welded at one time. The positioning accuracy is high and the consistency is good. The welding quality is effectively guaranteed, which saves the time of manual assembly spot welding and repair welding, improves the production efficiency, and realizes flexible, intelligent and efficient production. The extension and retraction and rotation of the clamping arm 0235 are controlled by the extension and retraction of the oil cylinder 0233 and the guide shaft 0233, which can realize the positioning of the width of the bending plate and the cover plate. Positioning and clamping. When the welding is completed, the oil cylinder 0233 extends out, the clamping arm 0235 retreats and rotates 90° to avoid the position of the weld that needs to be welded. The in-place detection sensor 0232 detects the position signal and transmits the signal to the PLC. The PLC and the welding robot interact with each other to achieve one-time welding of all welds with a welding success rate of 100%. When the welding is completed, the oil cylinder 0242 drives the positioning block 0245 to retract to avoid the position of the weld that needs to be welded. The in-place detection sensor 0247 detects the position signal and transmits the signal to the PLC. The PLC and the welding robot interact with each other to achieve one-time welding of all welds with a welding success rate of 100%.

[0013] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In the attached picture:

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the main body component of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the head end moving clamping assembly of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the rotary clamping assembly of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the cover plate positioning assembly of the utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the bending plate positioning support assembly of the utility model;

[0021] Figure 7 This is a schematic diagram of the structure of the end positioning and clamping assembly of the utility model;

[0022] Figure 8 This is a schematic diagram of the structure of the centering drive assembly of the utility model;

[0023] Fig. 9 It is a schematic diagram of the structure of the intermediate fixed pressing component of the utility model.

[0024] In the figure: 01, mechanism body assembly; 011, linear guide rail 1; 012, body frame; 013, linear guide rail 2; 02, head end moving clamping assembly; 021, slide plate; 022, slider; 023, rotating clamping assembly; 024, cover plate positioning assembly; 025, bending plate positioning support assembly; 026, end positioning clamping assembly; 0231, mounting seat 1; 0232, in-place detection sensor; 0233, oil cylinder 1; 0234, guide shaft 1; 0235, clamping arm; 0236, contour positioning block; 0241, mounting seat 2; 0242, oil cylinder 2; 0243, guide shaft 2; 0244, bushing; 0245, positioning block; 0246, in-place detection sensor 1; 0247, in-place detection sensor 2; 02 51. Mounting seat three; 0252. Support seat; 0253. Proximity switch sensor one; 0261. Mounting seat four; 0262. Angle cylinder; 0263. Pressure plate; 0264. Proximity switch sensor two; 0265. End positioning block; 03. Centering drive assembly; 031. Servo motor; 032. Reducer; 033. Reducer mounting seat; 034. Coupling; 035. Screw fixing seat; 036. Orthogonal screw nut seat; 037. Trapezoidal centering screw; 038. Reverse screw nut seat; 039. Screw supporting seat; 04. Intermediate fixed clamping assembly; 041. Mounting seat five; 042. Bending plate positioning support seat; 043. Pressure arm; 044. Cylinder mounting seat; 045. Cylinder three; 05. Tail end moving clamping assembly. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model.

[0026] like Figures 1 to 9 Shown

[0027] A flexible assembly welding fixture for a bending plate and a cover plate, comprising a mechanism body component 01, a head end moving clamping component 02, a centering drive component 03, an intermediate fixed clamping component 04 and a tail end moving clamping component 05, wherein the centering drive component 03 and the intermediate fixed clamping component 04 are bolted and fixedly connected with the mechanism body component 01, the mechanism body component 01 is composed of a body frame 012, a linear guide rail 1 011 and a linear guide rail 2 013, the linear guide rail 2 013 and the body frame 012 are bolted, the head end moving clamping component 02 is composed of a slide plate 021, a slider 022, a rotating clamping component 023, a telescopic positioning component 024, a bending plate positioning support component 025 and an end positioning clamping component The rotary clamping assembly 023 is composed of a mounting seat 0231, an in-position detection sensor 0232, a cylinder 0233, a guide shaft 0233, a clamping arm 0235 and a contour positioning block 0236. The extension and retraction of the clamping arm 0235 are controlled by the extension and retraction of the cylinder 0233 and the guide shaft 0233, so as to realize the positioning and clamping of the width of the bending plate and the cover plate. When the welding is completed, the cylinder 0233 is extended, the clamping arm 0235 is retracted and rotated 90° to avoid the weld position to be welded. The in-position detection sensor 0232 detects the position signal and transmits the signal to the PLC. The PLC and the welding robot signal interact with each other. To achieve one-time welding of all welds with a welding rate of 100%, the cover positioning assembly 024 is composed of a mounting seat 2 0241, a cylinder 2 0242, a guide shaft 2 0243, a sleeve 0244, a positioning block 0245, an in-place detection sensor 1 0246 and an in-place detection sensor 2 0247. The cylinder 2 0242 is extended to position the cover in the width direction through the positioning block 0245. When the positioning welding is completed, the cylinder 2 0242 drives the positioning block 0245 to retract to avoid the weld position to be welded. The in-place detection sensor 2 0247 detects the position signal and transmits the signal to the PLC. The PLC and the welding robot signal interact to achieve one-time welding of all welds. , welding rate is 100%, the bending plate positioning support assembly 025 is composed of a mounting seat three 0251, a support seat 0252 and a proximity switch sensor one 0253, the support seat 0252 positions and supports the workpiece, and the proximity switch sensor one 0253 detects the presence of the workpiece. The end positioning and clamping assembly 026 is composed of a mounting seat four 0261, a corner cylinder 0262, a pressure plate 0263, a proximity switch sensor two 0264 and an end positioning block 0265. The slide plate 021 moves as a whole, and the length of the workpiece is positioned by the end positioning block 0265. The corner cylinder 0262 drives the pressure plate 0263 to clamp the workpiece, and detects whether the workpiece is clamped in place through the proximity switch sensor two 0264.

[0028] In a specific embodiment, the tail end moving clamping assembly 05 has the same structure as the head end moving clamping assembly 02, and the sliders 022 of the head end moving clamping assembly 02 and the tail end moving clamping assembly 05 are slidably connected to the linear guide rails 1 011 and 2 013 on the mechanism body assembly 01, and can perform linear motion along the guide rails. The centering drive assembly 03 is composed of a servo motor 031, a reducer 032, a reducer mounting seat 033, a coupling 034, a screw fixing seat 035, a positive thread screw nut seat 036, a trapezoidal centering screw 037, a negative thread screw nut seat 038 and a screw support seat 039. The servo motor 031 is used to control the forward and reverse movement of the screw nut seat and the slide plate 021, and the servo motor 031 drives the head end moving clamping assembly 02 and the tail end moving clamping assembly 05 to move in a straight line. The workpiece is centered in the length direction, thereby realizing the positioning of the workpiece in the length direction; the bending plate positioning support assembly 025 of the head end moving clamping assembly 02 and the tail end moving clamping assembly 05 and the bending plate positioning support seat 042 of the middle fixed clamping assembly 04 position the bending plate in the width direction; the cover plate positioning assembly 024 of the head end moving clamping assembly 02 and the tail end moving clamping assembly 05 positions the cover plate in the width direction; the end positioning clamping assembly 026 of the head end moving clamping assembly 02 and the tail end moving clamping assembly 05 and the middle fixed clamping assembly 04 clamp the workpiece in the vertical direction; the rotating clamping assembly 023 of the head end moving clamping assembly 02 and the tail end moving clamping assembly 05 clamps the workpiece in the width direction, which can realize automatic positioning, clamping and welding of bending plates and cover plates of different lengths and widths.

[0029] Furthermore, the intermediate fixed clamping assembly 04 is composed of a mounting seat 5 041, a bending plate positioning support seat 042, a pressing arm 043, a cylinder mounting seat 044 and a cylinder three 045. The bending plate positioning support seat 042 positions and supports the workpiece, and the rotation of the pressing arm 043 is controlled by the cylinder three 045, thereby achieving the clamping of the workpiece.

[0030] The implementation principle of a bending plate and cover plate flexible assembly welding fixture of this embodiment is as follows:

[0031] During specific use, a rotating clamping assembly 023 is set, and the rotating clamping assembly 023 is composed of a mounting seat 0231, an in-position detection sensor 0232, a cylinder 0233, a guide shaft 0233, a clamping arm 0235 and a contoured positioning block 0236. The extension and retraction of the clamping arm 0235 are controlled by the extension and retraction of the cylinder 0233 and the guide shaft 0233, so as to realize the positioning and clamping of the width of the bending plate and the cover plate. When the positioning welding is completed, the cylinder 0233 is extended, the clamping arm 0235 is retracted and rotated 90° to avoid the weld position to be welded. The in-position detection sensor 0232 detects the position signal and transmits the signal to the PLC. The PLC and the welding robot signal The cover plate positioning assembly 024 is set up, and the cover plate positioning assembly 024 is composed of a mounting seat 2 0241, a cylinder 2 0242, a guide shaft 2 0243, a sleeve 0244, a positioning block 0245, an in-place detection sensor 1 0246 and an in-place detection sensor 2 0247. The cylinder 2 0242 is extended, and the positioning block 0245 is used to position the cover plate in the width direction. When the positioning welding is completed, the cylinder 2 0242 drives the positioning block 0245 to retract to avoid the weld position to be welded. The in-place detection sensor 2 0247 detects the position signal and transmits the signal to the PLC. The PLC and the welding robot signal interact to achieve All welds are welded at one time with a welding rate of 100%. Then, the bending plate positioning support assembly 025 is set, and the bending plate positioning support assembly 025 is composed of a mounting seat three 0251, a support seat 0252 and a proximity switch sensor one 0253, wherein the support seat 0252 can position and support the workpiece, and the proximity switch sensor one 0253 can detect the presence or absence of the workpiece. Through the end positioning clamping assembly 026 composed of a mounting seat four 0261, an angle cylinder 0262, a pressure plate 0263, a proximity switch sensor two 0264 and an end positioning block 0265, the slide plate 021 moves as a whole, and the length of the workpiece is positioned by the end positioning block 0265, and the angle cylinder 0262 drives the pressure plate 026 3. Clamp the workpiece, and detect whether the workpiece is clamped in place through the proximity switch sensor 2 0264, and then control the screw nut seat and the slide plate 021 to move in the forward and reverse directions through the servo motor 031, and drive the head end moving clamping assembly 02 and the tail end moving clamping assembly 05 to center the workpiece in the length direction through the servo motor 031, so as to realize the positioning of the workpiece in the length direction, the bending plate positioning support assembly 025 of the head end moving clamping assembly 02 and the tail end moving clamping assembly 05 and the bending plate positioning support seat 042 of the middle fixed clamping assembly 04 position the bending plate in the width direction, and the cover plate positioning assembly 024 of the head end moving clamping assembly 02 and the tail end moving clamping assembly 05 positions the cover plate in the width direction.The end positioning clamping assembly 026 and the middle fixed clamping assembly 04 of the head end moving clamping assembly 02 and the tail end moving clamping assembly 05 clamp the workpiece in the vertical direction, and the rotating clamping assembly 023 of the head end moving clamping assembly 02 and the tail end moving clamping assembly 05 clamp the workpiece in the width direction, which can realize the automatic positioning, clamping and welding of bending plates and cover plates of different lengths and widths.

Claims

1. A flexible assembly welding fixture for a bent plate and a cover plate, comprising a mechanism body component (01), a head end movable clamping component (02), a centering drive component (03), an intermediate fixed clamping component (04) and a tail end movable clamping component (05), characterized in that: The centering drive assembly (03) and the intermediate fixed clamping assembly (04) are bolted and fixedly connected to the mechanism body assembly (01); the mechanism body assembly (01) is composed of a body frame (012), a linear guide rail 1 (011) and a linear guide rail 2 (013); the linear guide rail 2 (013) and the body frame (012) are connected by bolts; the head end moving clamping assembly (02) is composed of a slide plate (021), a slider (022), a rotating clamping assembly (023), a cover plate positioning assembly (024), a bending plate positioning support assembly (025) and an end positioning clamping assembly (026); the rotating clamping assembly (023) is composed of a mounting seat 1 (0231), an in-position detection sensor (0232), an oil cylinder 1 (0233), a guide shaft 1 (0234), and a plurality of guide shafts (026). 0234), a clamping arm (0235) and a contoured positioning block (0236); the cover plate positioning assembly (024) is composed of a mounting seat 2 (0241), a cylinder 2 (0242), a guide shaft 2 (0243), a sleeve (0244), a positioning block (0245), an in-place detection sensor 1 (0246) and an in-place detection sensor 2 (0247); the bending plate positioning support assembly (025) is composed of a mounting seat 3 (0251), a support seat (0252) and a proximity switch sensor 1 (0253); the end positioning clamping assembly (026) is composed of a mounting seat 4 (0261), an angle cylinder (0262), a pressure plate (0263), a proximity switch sensor 2 (0264) and an end positioning block (0265).

2. A flexible assembly welding fixture for a bent plate and a cover plate according to claim 1, characterized in that: The support seat (0252) positions and supports the workpiece, and the proximity switch sensor 1 (0253) detects the presence or absence of the workpiece.

3. A flexible assembly welding fixture for a bent plate and a cover plate according to claim 1, characterized in that: The tail end movable clamping assembly (05) has the same structure as the head end movable clamping assembly (02), and the sliders (022) of the head end movable clamping assembly (02) and the tail end movable clamping assembly (05) are slidably connected to the linear guide rail 1 (011) and the linear guide rail 2 (013) on the mechanism body assembly (01).

4. A bending plate and cover plate flexible assembly welding fixture according to claim 1, characterized in that: The centering drive assembly (03) is composed of a servo motor (031), a reducer (032), a reducer mounting seat (033), a coupling (034), a screw fixing seat (035), a positive thread screw nut seat (036), a trapezoidal centering screw (037), a negative thread screw nut seat (038) and a screw support seat (039).

5. A flexible assembly welding fixture for a bent plate and a cover plate according to claim 4, characterized in that: The centering drive assembly (03) drives the head end movable clamping assembly (02) and the tail end movable clamping assembly (05) through a servo motor (031) to center and position the workpiece in the length direction, and the bending plate positioning support assembly (025) of the head end movable clamping assembly (02) and the tail end movable clamping assembly (05) and the bending plate positioning support seat (042) of the middle fixed clamping assembly (04) position the bending plate in the width direction.

6. A bending plate and cover plate flexible assembly welding fixture according to claim 5, characterized in that: The cover plate positioning assembly (024) of the head end movable clamping assembly (02) and the tail end movable clamping assembly (05) positions the cover plate in the width direction, the end positioning clamping assembly (026) and the middle fixed clamping assembly (04) of the head end movable clamping assembly (02) and the tail end movable clamping assembly (05) clamp the workpiece in the vertical direction, and the rotating clamping assembly (023) of the head end movable clamping assembly (02) and the tail end movable clamping assembly (05) clamps the workpiece in the width direction.

7. A bending plate and cover plate flexible assembly welding fixture according to claim 1, characterized in that: The intermediate fixed clamping assembly (04) is composed of a mounting seat five (041), a bending plate positioning support seat (042), a pressing arm (043), a cylinder mounting seat (044) and a cylinder three (045). The bending plate positioning support seat (042) positions and supports the workpiece, and the cylinder three (045) controls the rotation of the pressing arm (043).

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