Excavator chassis tailor-welding tool with detection function

Abstract

The utility model provides an excavator chassis tailor-welding tool with a detection function, which belongs to the technical field of mechanical manufacturing and comprises a bearing mechanism, a supporting frame, a workbench fixedly mounted at the top of the supporting frame, a driving component arranged in the center of the bottom of the workbench and a bearing component arranged at the top of the workbench. The welding mechanism comprises a lifting table fixedly installed at the top of the workbench, a lifting rod installed in an inner cavity of the lifting table in a matched mode and a rotary disc fixedly installed at the end of the lifting rod. Accurate bearing and positioning of the excavator chassis component can be achieved through the bearing mechanism, and the laser welding head can flexibly reach all welding positions of the chassis component through the welding mechanism. The detection assembly is integrated on the end portion of the arm rod of the welding mechanism, integrated operation of detection and welding is achieved, detection can be conducted immediately in the welding process or before and after welding, and working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical manufacturing technical field, concretely relates to excavator chassis tailor welding frock with detection function. BACKGROUND

[0002] In the manufacturing process of the excavator, the chassis is an important component, the excavator chassis structure is complex, is composed of multiple components, includes frame, crawler frame etc., since the chassis needs to bear huge weight, pressure and complex stress, its manufacturing precision and quality requirement are extremely high, along with the excavator market demand's continuous growth, the requirement of production efficiency and product quality stability is also increasingly improved, therefore will use excavator chassis tailor welding frock, it becomes the key equipment of ensuring that excavator chassis can be efficiently, accurately tailor welded.

[0003] At present, due to the complex structure of excavator chassis, the shape and layout of each component are irregular, detection equipment needs to be used to detect each part, and the angle is not adjustable during detection, so there will be a detection blind area, for example, some corners of the chassis, recessed parts or areas blocked by other components, the fixed-angle detection equipment cannot accurately obtain the information of these areas, which may lead to problems such as welding defects of these parts, component splicing deviation, etc. cannot be found, thereby affecting the overall quality and performance of the chassis. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of excavator chassis tailor welding frock with detection function, to solve the problems presented in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme;

[0006] A kind of excavator chassis tailor welding frock with detection function, comprising,

[0007] Bearing mechanism, including support frame, workbench fixedly installed in the top of the support frame, drive assembly arranged in the bottom center of the workbench, and bearing assembly arranged on the top of the workbench;

[0008] Welding mechanism, including lifting platform fixedly installed in the top of the workbench, lifting rod adaptively installed in the inner cavity of the lifting platform, rotary table fixedly installed in the end of the lifting rod, multi-axis mechanical arm adaptively installed in the top of the rotary table, arm lever hinged in the top of the multi-axis mechanical arm, and detection assembly arranged in the end of the arm lever.

[0009] As a preferred scheme of the utility model, the detection assembly includes a housing fixedly installed at the end of the arm, an ultrasonic transducer fixedly installed at the top of the housing, a photoelectric detector fixedly installed at the outer side of the housing, a signal generator fixedly installed at the outer side of the housing, an optical lens fixedly installed at the bottom of the signal generator and located at the outer side of the housing, a laser welding head fixedly installed at the bottom of the housing, and a light head fixedly installed at the outer surface of the laser welding head.

[0010] As a preferred scheme of the utility model, the driving assembly includes a positioning frame fixedly installed at the center of the bottom of the workbench, a servo motor fixedly installed at the outer side of the positioning frame, a threaded rod fixedly installed at the output end of the servo motor through a shaft coupling, and a driving guide plate threadedly sleeved on the outer surface of the threaded rod.

[0011] As a preferred scheme of the utility model, the bearing assembly includes a support rod fixedly installed at the top of the workbench, a shaft fixedly installed at the inner surface of the support rod, an electric telescopic rod sleeved on the outer surface of the shaft, and an inclined rod fixedly installed at the end of the electric telescopic rod.

[0012] As a preferred scheme of the utility model, the bearing assembly further includes a positioning disc fixedly installed at the top of the inclined rod, a shaft seat fixedly installed at the end of the inclined rod, a placing groove seat fixedly installed at the top of the inclined rod, an air cylinder fixedly installed at the top of the placing groove seat, and a clamping plate fixedly installed at the end of the air cylinder.

[0013] As a preferred scheme of the utility model, the bottom of the shaft seat penetrates the opening in the center of the workbench and is fixedly connected with the top of the driving guide plate.

[0014] As a preferred scheme of the utility model, the positioning disc is circular in shape, and a damping rubber ring is arranged at the top of the positioning disc.

[0015] Compared with the prior art, the utility model has the beneficial effects that the bearing mechanism can realize accurate bearing and positioning of the chassis components of the excavator, the welding mechanism enables the laser welding head to flexibly reach each welding position of the chassis components, the detection assembly is integrated at the end of the arm of the welding mechanism, realizes integrated operation of detection and welding, and can immediately perform detection during or before and after welding, thereby improving work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained from these drawings without creative labor, and therefore the present application is not limited to the specific embodiments disclosed below.

[0017] Fig. 1 It is a schematic diagram of the overall structure of the present application.

[0018] Fig. 2 It is a schematic diagram of the bearing assembly structure of the present application.

[0019] Fig. 3 It is a schematic diagram of the detection assembly structure of the present application.

[0020] Fig. 4 It is a schematic diagram of the driving assembly structure of the present application.

[0021] In the figure; 100, bearing mechanism; 101, support frame; 102, workbench; 103, driving assembly; 103a, positioning frame; 103b, servo motor; 103c, threaded rod; 103d, driving guide plate; 104, bearing assembly; 104a, support rod; 104b, shaft; 104c, electric telescopic rod; 104d, inclined rod; 104e, positioning disc; 104f, shaft seat; 104g, placing groove seat; 104h, air cylinder; 104i, clamping plate; 200, welding mechanism; 201, lifting platform; 202, lifting rod; 203, turntable; 204, multi-axis mechanical arm; 205, arm rod; 206, detection assembly; 206a, shell; 206b, ultrasonic transducer; 206c, photoelectric detector; 206d, signal generator; 206e, optical lens; 206f, laser welding head; 206g, illuminating lamp holder. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings of the specification.

[0023] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0024] Secondly, the "one embodiment" or "embodiment" referred to herein means a specific feature, structure, or characteristic that is included in at least one implementation of the present application. The appearances of "in one embodiment" or "in an embodiment" at various places in the specification do not necessarily refer to the same embodiment, nor do they necessarily represent a separate or alternative embodiment, mutually exclusive from other embodiments.

[0025] Embodiment

[0026] With reference to Figs. 1-4 For the embodiment of the present application, the embodiment provides a excavator chassis tailor welding tool with detection function, comprising,

[0027] The bearing mechanism 100 comprises a support frame 101, a workbench 102 fixedly installed on the top of the support frame 101, a driving assembly 103 arranged at the bottom center of the workbench 102, and a bearing assembly 104 arranged on the top of the workbench 102.

[0028] The welding mechanism 200 comprises a lifting platform 201 fixedly installed on the top of the workbench 102, a lifting rod 202 adaptively installed in the inner cavity of the lifting platform 201, a turntable 203 fixedly installed on the end of the lifting rod 202, a multi-axis mechanical arm 204 adaptively installed on the top of the turntable 203, an arm rod 205 hingedly arranged on the top of the multi-axis mechanical arm 204, and a detection assembly 206 arranged on the end of the arm rod 205.

[0029] Among them, the support frame 101 and the workbench 102 in the bearing mechanism 100 provide a stable basic structure for the whole tailor welding tool, through the cooperative work of the driving assembly 103 and the bearing assembly 104, the accurate bearing and positioning of the excavator chassis parts can be realized, the combination of the lifting platform 201, the lifting rod 202, the turntable 203 and the multi-axis mechanical arm 204 in the welding mechanism 200 makes the laser welding head 206f can flexibly reach each welding position of the chassis parts; the detection assembly 206 is integrated on the end of the arm rod 205, which realizes the integrated operation of detection and welding, and the detection can be immediately carried out during or before and after welding, which improves the work efficiency.

[0030] Specifically, the detection assembly 206 comprises a shell 206a fixedly installed on the end of the arm rod 205, an ultrasonic transducer 206b fixedly installed on the top of the shell 206a, a photoelectric detector 206c fixedly installed on the outer side of the shell 206a, a signal generator 206d fixedly installed on the outer side of the shell 206a, an optical lens 206e fixedly installed on the outer side of the shell 206a and located at the bottom of the signal generator 206d, a laser welding head 206f fixedly installed on the bottom of the shell 206a, and a lamp holder 206g fixedly installed on the outer surface of the laser welding head 206f.

[0031] The ultrasonic transducer 206b can detect defects inside the weld, such as slag inclusion and incomplete fusion; the photoelectric detector 206c and the optical lens 206e can detect the appearance shape and surface quality of the weld; the signal generator 206d provides the necessary signal for the ultrasonic transducer 206b to ensure the normal operation of the detection function; the laser welding head 206f uses laser welding technology, which has the advantages of fast welding speed and high weld quality; and the illuminating lamp head 206g can provide sufficient illumination during welding and detection, facilitating the operator to observe the welding and detection conditions, and further improving the accuracy and efficiency of the work.

[0032] Further, the driving assembly 103 includes a positioning frame 103a fixedly installed at the bottom center of the workbench 102, a servo motor 103b fixedly installed outside the positioning frame 103a, a threaded rod 103c fixedly installed at the output end of the servo motor 103b through a shaft coupling, and a driving guide plate 103d threadedly sleeved on the outer surface of the threaded rod 103c.

[0033] The servo motor 103b, the threaded rod 103c and the driving guide plate 103d in the driving assembly 103 can accurately control and adjust the position of the bearing assembly 104. When placing bottom disc parts of different sizes or shapes, the height or horizontal position of the bearing assembly 104 can be adjusted as needed to ensure accurate placement of the parts during the tailor-welding process.

[0034] Preferably, the bearing assembly 104 includes a support rod 104a fixedly installed at the top of the workbench 102, a shaft rod 104b hingedly connected to the inner surface of the support rod 104a, an electric telescopic rod 104c sleeved on the outer surface of the shaft rod 104b, and an inclined rod 104d hingedly connected to the end of the electric telescopic rod 104c. The bearing assembly 104 further includes a positioning disc 104e fixedly installed at the top of the inclined rod 104d, a shaft seat 104f fixedly installed at the end of the inclined rod 104d, a placement groove seat 104g fixedly installed at the top of the inclined rod 104d, a pneumatic cylinder 104h fixedly installed at the top of the placement groove seat 104g, and a clamping plate 104i fixedly installed at the end of the pneumatic cylinder 104h.

[0035] The electric telescopic rod 104c is sleeved on the outer surface of the shaft rod 104b and hingedly connected to the inner surface of the support rod 104a at one end and to the inclined rod 104d at the other end. The extension and retraction of the electric telescopic rod 104c changes the angle of the inclined rod 104d, thereby adjusting the position and posture of the positioning disc 104e, the placement groove seat 104g and other components to adapt to the shape of the bottom disc part.

[0036] Further, the bottom of the shaft seat 104f penetrates the opening in the center of the workbench 102, and is fixedly connected with the top of the driving guide plate 103d. The positioning disc 104e is circular in shape, and the top of the positioning disc 104e is provided with a damping rubber ring.

[0037] The damping rubber ring can reduce the influence of external vibration on the chassis component when the chassis component is carried and positioned, can prevent the chassis component from being damaged due to collision during placement, and helps to improve the surface quality and overall performance of the chassis component.

[0038] In use, first, the excavator chassis component is placed on the positioning disc 104e, the cylinder 104h is started, the clamping plate 104i is driven to move towards the chassis component, the component is clamped, displacement during the process of stitch welding and detection is ensured, the servo motor 103b in the driving assembly 103 is started, the threaded rod 103c is rotated, the driving guide plate 103d moves horizontally according to the rotation of the threaded rod 103c, and the movement of the driving guide plate 103d drives the overall movement of the carrying assembly 104, so that the carrying assembly 104 is adjusted to a suitable angle.

[0039] Then, the electric telescopic rod 104c is controlled to be extended and retracted, the extension and retraction of the electric telescopic rod 104c changes the angle of the inclined rod 104d, so that the position and posture of the positioning disc 104e, the placing groove seat 104g and other components are adjusted to adapt to the shape of the chassis component, the welding mechanism 200 starts to work, the lifting platform 201 and the lifting rod 202 cooperate to adjust the height of the turntable 203, so that the multi-axis mechanical arm 204 can reach a suitable working height, then the turntable 203 can be rotated as needed to adjust the direction of the multi-axis mechanical arm 204.

[0040] The multi-axis mechanical arm 204 moves the laser welding head 206f to the first welding position of the excavator chassis component through the movement of the arm rod 205, starts the laser welding head 206f to start welding operation, the illuminating lamp head 206g provides illumination to facilitate the operator to observe the welding condition, the signal generator 206d in the detection assembly 206 provides a signal for the ultrasonic transducer 206b, the ultrasonic transducer 206b emits ultrasonic waves to the welding position, and whether there is slag inclusion, incomplete fusion and other defects in the welding seam is detected by receiving the reflected ultrasonic wave signals, at the same time, the photoelectric detector 206c and the optical lens 206e detect the appearance shape and surface quality of the welding seam, the photoelectric detector 206c receives the light reflected by the welding position, the optical lens 206e focuses the light, and the two work cooperatively to detect whether the welding seam surface is smooth and whether there are pores or undercut defects.

[0041] In summary, the bearing mechanism 100 can realize the accurate bearing and positioning of the excavator chassis components, the welding mechanism 200 enables the laser welding head 206f to flexibly reach various welding positions of the chassis components; the detection assembly 206 is integrated at the end of the arm rod 205, realizing the integrated operation of detection and welding, and the detection can be immediately performed during or before and after the welding, improving the work efficiency.

[0042] Importantly, it should be noted that the constructions and arrangements of the present application shown in the various different exemplary embodiments are merely illustrative. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described in the application. For example, elements shown as integrally formed can be constructed of multiple parts or elements, the position of elements can be reversed or otherwise varied, and the nature or number of elements or positions can be altered or varied. Accordingly, all such modifications are intended to be included within the scope of the present application. The order or sequence of any process or method steps can be varied or re-sequenced without materially affecting the application. Any "means plus function" clauses are intended to cover the structures described herein as performing the recited functions and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of the present application. Accordingly, the present application is not limited to the particular embodiments described and illustrated herein, but extends to equivalents of which the foregoing describes are intended to cover.

[0043] Furthermore, in order to provide a concise description of exemplary embodiments, all features of an actual implementation can not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the present application, or those unrelated to enabling the present application).

[0044] It is to be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions can be made. Such development efforts can be complex and time-consuming, but would be a routine undertaking for those of ordinary skill in the art having the benefit of this disclosure.

[0045] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A digging machine chassis tailor-welding tooling with a detection function, characterized in that: include, A bearing mechanism (100) comprises a support frame (101), a workbench (102) fixedly mounted on the top of the support frame (101), a driving assembly (103) arranged at the center of the bottom of the workbench (102), and a bearing assembly (104) arranged on the top of the workbench (102); The welding mechanism (200) comprises a lifting platform (201) fixedly mounted on the top of the workbench (102), a lifting rod (202) adapted to be mounted in the inner cavity of the lifting platform (201), a turntable (203) fixedly mounted at the end of the lifting rod (202), a multi-axis mechanical arm (204) adapted to be mounted on the top of the turntable (203), an arm (205) hinged on the top of the multi-axis mechanical arm (204), and a detection component (206) arranged at the end of the arm (205).

2. The excavator chassis tailor-welding tooling with a detection function according to claim 1, characterized in that: The detection assembly (206) includes a shell (206a) fixedly mounted on the end of the arm (205), an ultrasonic transducer (206b) fixedly mounted on the top of the shell (206a), a photoelectric detector (206c) fixedly mounted on the outside of the shell (206a), a signal generator (206d) fixedly mounted on the outside of the shell (206a), an optical lens (206e) fixedly mounted on the outside of the shell (206a) and located at the bottom of the signal generator (206d), a laser welding head (206f) fixedly mounted on the bottom of the shell (206a), and a lighting lamp head (206g) fixedly mounted on the outer surface of the laser welding head (206f).

3. The work fixture for spot welding the chassis of the excavator with the detecting function according to claim 2, characterized in that: The driving assembly (103) comprises a positioning frame (103a) fixedly mounted at the center of the bottom of the workbench (102), a servo motor (103b) fixedly mounted on the outside of the positioning frame (103a), a threaded rod (103c) fixedly mounted on the output end of the servo motor (103b) via a coupling, and a driving guide plate (103d) threadedly sleeved on the outer surface of the threaded rod (103c).

4. The excavator chassis tailor-welding tooling with a detection function according to claim 3, characterized in that: The bearing assembly (104) comprises a support rod (104a) fixedly mounted on the top of the workbench (102), a shaft rod (104b) hingedly connected to the inner surface of the support rod (104a), an electric telescopic rod (104c) sleeved on the outer surface of the shaft rod (104b), and an inclined rod (104d) hingedly connected to the end of the electric telescopic rod (104c).

5. The excavator chassis tailor-welding tooling with a detection function according to claim 4, characterized in that: The bearing assembly (104) further includes a positioning plate (104e) fixedly mounted on the top of the inclined rod (104d), an axle seat (104f) fixedly mounted on the end of the inclined rod (104d), a placement slot seat (104g) fixedly mounted on the top of the inclined rod (104d), a cylinder (104h) fixedly mounted on the top of the placement slot seat (104g), and a clamping plate (104i) fixedly mounted on the end of the cylinder (104h).

6. The excavator chassis tailor-welding tooling with a detection function according to claim 5, characterized in that: The bottom of the shaft seat (104f) passes through the opening in the center of the workbench (102) and is fixedly connected to the top of the driving guide plate (103d).

7. The excavator chassis tailor-welding tooling with a detection function according to claim 6, characterized in that: The positioning disc (104e) is circular in shape, and a damping rubber ring is arranged on the top of the positioning disc (104e).

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