Long and short guide rail motion structure and welding equipment

Abstract

The application belongs to the technical field of welding equipment and relates to a long-short guide rail movement structure and welding equipment. The long-short guide rail movement structure comprises a first guide rail and a second guide rail. The length of the second guide rail is smaller than that of the first guide rail, and the second guide rail is movably connected to the first guide rail. In the movement direction of the second guide rail, the two oppositely arranged end faces of the second guide rail form a movement stroke during the movement of the second guide rail, and the movement stroke is within the length range of the first guide rail. The two end faces of the second guide rail form a movement stroke during the movement of the second guide rail, and the movement stroke is within the length range of the first guide rail. Therefore, during the process of connecting the second guide rail to the work platform and driving the work platform to move, each part of the second guide rail always abuts against the first guide rail, and there is no part exceeding the first guide rail, so that the stress of the second guide rail is always uniform, the consistency is good, and the quality of the processed product is high.

Description

Technical Field

[0001] This application relates to the field of welding equipment technology, and more specifically, to a long and short guide rail motion structure and welding equipment. Background Technology

[0002] With the rapid development of the electronics industry, the demand for the production of microelectronic devices is constantly increasing. In the field of semiconductor packaging, soldering and bonding technology is a key process. Each working platform is a basic component of the soldering and bonding machine. The working platform needs to be able to move according to actual processing requirements. Therefore, the motion structure that connects the working platform to the other devices is very important, as it can affect the motion stability of the working platform and thus affect the soldering quality.

[0003] Existing technologies in the welding process, such as Figure 1 As shown, the motion structure in a work platform typically employs a dual-rail configuration: rail A is connected to the work platform, and rail B is connected to other components (including another work platform). When the other components connected to rail B are driven by motors or other devices, rail B will move relative to rail A until rails A and B intersect in the length direction. Figure 2 As shown, when guide rails A and B are interleaved, the portion of guide rail B that extends beyond guide rail A is no longer supported by the work platform and guide rail A. Therefore, its stress state will change. Figure 1 All parts of it are subjected to force and become Figure 2 Uneven stress distribution within the guide rail causes a decrease in the rigidity of the remaining components connected to guide rail B, thus affecting the performance of guide rail B. Figure 2 The consistency of motion at time compared to Figure 1 Poor timing resulted in a decrease in the quality of soldering on the remaining components.

[0004] In summary, the existing technology suffers from poor consistency in the motion structure, which in turn leads to a decline in welding quality. Utility Model Content

[0005] The technical problem to be solved by the embodiments of this application is that the consistency of the motion structure in the prior art is poor, which leads to a decline in welding quality.

[0006] To solve the above-mentioned technical problems, the embodiments of this application adopt the following solution:

[0007] A long and short guide rail motion structure, comprising:

[0008] First guide rail;

[0009] The second guide rail has a length less than that of the first guide rail and is movably connected to the first guide rail. Along the direction of movement of the second guide rail, the two opposite end faces of the second guide rail form a moving stroke when the second guide rail moves, and the moving stroke is within the length range of the first guide rail.

[0010] Furthermore, the first guide rail has a connecting protrusion on the side facing the second guide rail, and the second guide rail has a connecting groove on the side facing the first guide rail. The connecting protrusion matches the shape of the connecting groove and abuts against the connecting groove.

[0011] Furthermore, the first guide rail is provided with a first connecting surface, a first inclined surface, and a second inclined surface for connecting external devices; the first inclined surface forms an obtuse angle with the first connecting surface, and the second inclined surface is disposed opposite to the side of the first guide rail where the first connecting surface is not disposed, and the first inclined surface and the second inclined surface together define the connecting protrusion.

[0012] Furthermore, the long and short guide rail movement structure also includes an intermediate frame, which is disposed between the first guide rail and the second guide rail. The intermediate frame includes a first rolling element and a second rolling element connected to each other. The first rolling element and the second rolling element respectively abut against the first inclined surface and the second inclined surface. Along the length direction of the first guide rail, the first rolling element and the second rolling element are each provided with a plurality of rolling parts, which are balls or needle rollers.

[0013] Furthermore, the long and short guide rail motion structure also includes a first gear, a first receiving groove is provided between the first inclined surface and the second inclined surface, a first gear rack is provided in the first receiving groove, a second receiving groove is provided in the connecting groove, the first receiving groove and the second receiving groove are arranged opposite to each other, a second gear rack is provided in the second receiving groove, a first gear hole is provided between the first rolling element and the second rolling element, the first gear is rotatably connected to the inner wall of the first gear hole, and the first gear meshes with the first gear rack and the second gear rack.

[0014] Furthermore, along the movement direction of the second guide rail, axial end faces are provided on both sides of the second guide rail, and the connecting groove penetrates the axial end faces;

[0015] Wherein, the connection between the axial end face and the connecting groove is provided with a chamfer; and / or,

[0016] The connection between the axial end face and the connecting groove is provided with a rounded corner.

[0017] Furthermore, there are two first guide rails, and the two first guide rails are respectively movably connected to both sides of the second guide rail.

[0018] Furthermore, the long and short guide rail moving structure also includes an intermediate frame, which is disposed between the first guide rail and the second guide rail and is rotatably connected to both the first guide rail and the second guide rail; the first guide rail is provided with a first connecting surface for connecting external devices;

[0019] The long and short guide rail motion structure also includes a second gear, a third gear rack and a fourth gear rack. The third gear rack is connected to the first connecting surface, and the fourth gear rack is disposed on the second guide rail and located on the side of the second guide rail away from the first connecting surface. The second gear passes through the intermediate frame, and one end of the second gear meshes with the third gear rack, and the other end meshes with the fourth gear rack.

[0020] Accordingly, this application also provides a welding device, which includes the long and short guide rail motion structure described in any of the above embodiments.

[0021] Furthermore, the welding equipment includes a first workbench and a second workbench, with the second workbench stacked on top of the first workbench. One of the first workbench and the second workbench is connected to the first guide rail, and the other is connected to the second guide rail.

[0022] In this configuration, the second guide rail is positioned on a side further away from the center of the first worktable, compared to the first guide rail; or...

[0023] Compared to the first guide rail, the second guide rail is located on the side closer to the center of the first worktable.

[0024] Compared with the prior art, the embodiments of this application have the following main advantages:

[0025] The two end faces of the second guide rail form a travel distance when the second guide rail moves, and this travel distance is within the length range of the first guide rail. Therefore, even when the second guide rail moves to its own limit in the Y direction, it cannot intersect with the first guide rail. Thus, when the second guide rail is connected to the work platform and the work platform is driven to move, all parts of the second guide rail are always in contact with the first guide rail, with no part exceeding the first guide rail's range. Therefore, the force on the second guide rail is always uniform, resulting in good consistency and improved welding quality. Attached Figure Description

[0026] To more clearly illustrate the solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the existing technology when guide rails A and B are aligned.

[0028] Figure 2 This is a schematic diagram of the existing technology when guide rails A and B are intersected;

[0029] Figure 3 This is a schematic diagram of the long and short guide rail motion structure and the connection structure of the first worktable and the second worktable according to an embodiment of this application;

[0030] Figure 4 This is an exploded view of the long and short guide rail motion structure and the first and second worktables according to an embodiment of this application.

[0031] Figure 5 This is a schematic diagram of the long and short guide rail motion structure according to an embodiment of this application;

[0032] Figure 6 yes Figure 5 An enlarged view of point A in the diagram;

[0033] Figure 7 This is an exploded structural diagram of the long and short guide rail motion structure according to an embodiment of this application;

[0034] Figure 8 This is another schematic diagram of the long and short guide rail motion structure according to an embodiment of this application;

[0035] Figure 9 This is a schematic diagram of the structure when the second guide rail is connected to two first guide rails in this application;

[0036] Figure 10 yes Figure 9 A structural diagram omitting the second guide rail and one first guide rail;

[0037] Figure 11 yes Figure 10 Enlarged diagram of point B in the diagram;

[0038] Figure 12 This is a schematic diagram of the structure of the second guide rail according to an embodiment of this application;

[0039] Figure 13 This is a schematic diagram of a second guide rail connected to a first guide rail according to an embodiment of this application;

[0040] Figure 14 yes Figure 13 Force diagram of the second worktable when the medium-length and short-length guide rail motion structure is connected to the first worktable and the second worktable;

[0041] Figure 15 yes Figure 9Force diagram of the second worktable when the medium-length and short-length guide rail motion structure is connected to the first worktable and the second worktable;

[0042] Figure 16 This is a force diagram of the second guide rail disposed on the side near the center of the first worktable in an embodiment of this application;

[0043] Figure 17 The force diagram of the first guide rail disposed on the side near the center of the first worktable in this embodiment of the application.

[0044] Figure label:

[0045] 10. Guide rail A; 20. Guide rail B; 100. Long and short guide rail motion structure; 110. First guide rail; 111. First inclined surface; 112. Second inclined surface; 113. First receiving groove; 114. First connecting surface; 120. Second guide rail; 121. Connecting groove; 122. Second receiving groove; 123. Axial end face; 124. Chamfer; 130. Intermediate frame; 131. First rolling element; 132. Second rolling element; 133. Rolling part; 200. Driving element; 300. First worktable; 400. Second worktable; 510. First gear; 610. Second gear; 620. Third gear rack; 630. Fourth gear rack; 640. First gear rack; 650. Second gear rack; 660. Baffle. Detailed Implementation

[0046] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0047] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "joined," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0050] Example 1

[0051] To solve the above problems, please refer to... Figures 3-6 In the figure, the Y direction is the movement direction of the second guide rail 120. This application provides a long and short guide rail motion structure 100, including:

[0052] First guide rail 110;

[0053] The second guide rail 120 has a length less than that of the first guide rail 110 and is movably connected to the first guide rail 110. Along the direction of movement of the second guide rail 120, the two opposite end faces (axial end faces 123) of the second guide rail 120 form a moving stroke when the second guide rail 120 moves, and the moving stroke is within the length range of the first guide rail 110.

[0054] In this embodiment, because the two end faces of the second guide rail 120 form a travel distance when the second guide rail 120 moves, and this travel distance is within the length range of the first guide rail 110, the second guide rail 120 cannot intersect with the first guide rail 110 even when it moves to its own limit along the Y direction. Therefore, in this embodiment, when the second guide rail 120 is connected to the work platform and the work platform (second worktable 400) is driven to move along the Y direction in the figure, all parts of the second guide rail 120 are always in contact with the first guide rail 110, and there is no part that exceeds the first guide rail 110. At this time, if Figure 5 As shown, the force on the second guide rail 120 is always uniform, with good consistency, resulting in high-quality products.

[0055] In summary, the long and short guide rail motion structure 100 of this embodiment exhibits good consistency during use, resulting in high-quality manufactured products.

[0056] Further, please refer to Figures 5-6 The first guide rail 110 has a connecting protrusion on the side facing the second guide rail 120, and the second guide rail 120 has a connecting groove 121 on the side facing the first guide rail 110. The connecting protrusion matches the shape of the connecting groove 121 and abuts against the connecting groove 121.

[0057] In this embodiment, the connecting protrusion can mechanically engage with the connecting groove 121 to play a bidirectional guiding and positioning role. This facilitates the assembly of the first guide rail 110 and the second guide rail 120, and also prevents the second guide rail 120 and the first guide rail 110 from shaking and disengaging along the Z-axis during movement, thereby improving the stability of the long and short guide rail movement structure 100.

[0058] It should be understood that the connecting protrusion of this application can also be provided on the second guide rail 120, in which case, such as Figures 7-8 As shown, the first guide rail 110 has a groove corresponding to the connecting protrusion on the side facing the second guide rail 120. The specific position of the connecting protrusion can be adjusted according to actual production needs.

[0059] Further, please refer to Figures 5-8 The first guide rail 110 is provided with a first connecting surface 114, a first inclined surface 111 and a second inclined surface 112 for connecting external devices; the first inclined surface 111 and the first connecting surface 114 form an obtuse angle, and the second inclined surface 112 is disposed opposite to the side of the first guide rail 110 where the first connecting surface 114 is not disposed, and the first inclined surface 111 and the second inclined surface 112 together define a connecting protrusion.

[0060] In this embodiment, the first inclined surface 111 and the second inclined surface 112 together define an angular connecting protrusion that convexes toward the X-axis. This angular connecting protrusion structure can cooperate with the connecting groove 121 (V-groove) to effectively prevent the second guide rail 120 and the first guide rail 110 from separating along the Z-axis direction in the figure.

[0061] Further, please refer to Figures 5-8 The long and short guide rail motion structure 100 also includes an intermediate frame 130, which is located between the first guide rail 110 and the second guide rail 120. The intermediate frame 130 includes a first rolling element 131 and a second rolling element 132 connected to each other. The first rolling element 131 and the second rolling element 132 respectively abut against the first inclined surface 111 and the second inclined surface 112. Along the length direction of the first guide rail 110, the first rolling element 131 and the second rolling element 132 are each provided with a plurality of rolling parts 133, which are balls or needle rollers.

[0062] In this embodiment, the rolling part 133 provided in the intermediate frame 130 can make the load generated between the first guide rail 110 and the second guide rail 120 evenly distributed to the first inclined surface 111, the second inclined surface 112 and the connecting groove 121. At the same time, the intermediate frame 130 can also prevent the first guide rail 110 and the second guide rail 120 from directly contacting each other, so as to reduce the friction and noise generated between them.

[0063] Further, please refer to Figures 5-8 The long and short guide rail motion structure 100 also includes a first gear 510, a first receiving groove 113 is provided between the first inclined surface 111 and the second inclined surface 112, a first gear rack 640 is provided in the first receiving groove 113, a second receiving groove 122 is provided in the connecting groove 121, the first receiving groove 113 and the second receiving groove 122 are arranged opposite to each other, a second gear rack 650 is provided in the second receiving groove 122, a first gear hole is provided between the first rolling element 131 and the second rolling element 132, the first gear 510 is rotatably connected to the inner wall of the first gear hole, and the first gear 510 meshes with the first gear rack 640 and the second gear rack 650.

[0064] It should be understood that the first gear rack 640 can be detachably connected to the first guide rail 110 or integrally formed, and the second gear rack 650 can be detachably connected to the second guide rail or integrally formed. For details, see [link to details]. Figures 7-8 At this point, the first gear rack 640 is detachably connected to the first guide rail 110, while the second guide rail 120 and the second gear rack 650 are integrally formed. Figure 7As shown, the long and short guide rail motion structure 100 may also include a baffle 660. The baffle is disposed on both sides of the length direction (Y direction) of the first guide rail 110 and / or the second guide rail 120. In this case, the baffle 660 can prevent the intermediate frame 130 from leaving the preset position along the Y direction in the figure, and can also prevent the first gear rack 640 from leaving the preset position along the Y direction in the figure.

[0065] In this embodiment, a first gear rack 640 and a second gear rack 650 are respectively provided in the first receiving groove 113 and the second receiving groove 122. The first gear rack 640 and the second gear rack 650 are meshed with a first gear 510. Therefore, when the first guide rail 110 and the second guide rail 120 move relative to each other, the first gear 510 will remain relatively stationary, that is, to prevent the intermediate frame 130 from leaving the preset position. At the same time, the meshing of the first gear 510 with the first gear rack 640 and the second gear rack 650 enables the first guide rail 110 and the second guide rail 120 to move relatively stably, thereby reducing the vibration of the long and short guide rail moving structure 100 and improving its service life.

[0066] Further, please refer to Figure 12 Along the movement direction of the second guide rail 120, axial end faces 123 are provided on both sides of the second guide rail 120, and the connecting groove 121 passes through the axial end faces 123.

[0067] Wherein, a chamfer 124 is provided at the connection between the axial end face 123 and the connecting groove 121; and / or,

[0068] The connection between the axial end face 123 and the connecting groove 121 is provided with a rounded corner.

[0069] In this embodiment, the chamfer 124 and the rounded corners enable the rolling part 133 of the intermediate frame 130 to move more smoothly into the second guide rail 120 during the movement of the second guide rail 120 relative to the first guide rail 110, thereby avoiding collision between the rolling part 133 and the axial end face 123.

[0070] Further, please refer to Figure 9 , Figures 13-15 There are two first guide rails 110, and the two first guide rails 110 are respectively movably connected to both sides of the second guide rail 120.

[0071] In this embodiment, when a dual-rail system is used as the long and short rail motion structure 100, such as... Figure 13As shown, typically one guide rail (such as the first guide rail 110) is connected to the first worktable 300 (as a base), and another guide rail (such as the second guide rail 120) is connected to the second worktable 400 (as a moving part). Therefore, after the first guide rail 110 and the second guide rail 120 are fitted together, a preload force will be generated between the two guide rails (horizontal arrow in the figure). This preload force is as follows: Figure 14 As shown, this will affect the second worktable 400, which is a moving part. That is, the preload is not directed towards the center of mass of the overall structure formed by the second worktable 400 and the second guide rail 120. Therefore, two torques of equal magnitude and opposite direction will be generated (arc arrows located on the second worktable 400 in the figure), which will eventually cause the second worktable 400 to deform and affect the positioning accuracy of the second worktable 400.

[0072] In this embodiment, the first guide rail 110 and the second guide rail 120 can be connected as follows: Figure 9 The three-rail structure shown has the second guide rail 120, which is a moving part, with the first guide rail 110 abutting on both sides. At this time, the preload applied by the two first guide rails 110 to the second guide rail 120 will cancel each other out (the preload brought by the first guide rails 110 on both sides of the second guide rail 120 cancels each other out in the figure). Therefore, it cannot form a torque relative to the center of mass of the second worktable 400, and the second worktable 400 will not deform, resulting in higher positioning accuracy.

[0073] Example 2

[0074] The difference between this embodiment and Embodiment 1 is that the first guide rail 110 does not have a connecting protrusion, but instead has a groove similar in structure to the connecting groove in the second guide rail 120, which is positioned opposite to the connecting groove 121. In this case, the intermediate frame protrudes towards the aforementioned groove and connecting groove 121. Please refer to... Figures 9-11 The long and short guide rail motion structure 100 also includes an intermediate frame 130, which is located between the first guide rail 110 and the second guide rail 120 and is tumbledly connected to both the first guide rail 110 and the second guide rail 120; the first guide rail 110 is provided with a first connecting surface 114 for connecting external devices.

[0075] The long and short guide rail motion structure 100 also includes a second gear 610, a third gear rack 620 and a fourth gear rack 630. The third gear rack 620 is connected to the first connecting surface 114, and the fourth gear rack 630 is disposed on the second guide rail 120 and located on the side of the second guide rail 120 away from the first connecting surface 114. The second gear 610 passes through the intermediate frame 130, and one end of the second gear 610 meshes with the third gear rack 620, and the other end meshes with the fourth gear rack 630.

[0076] In this embodiment, the connection method between the intermediate frame 130 and the first guide rail 110 and the second guide rail 120 varies depending on the structure of the intermediate frame 130. In this embodiment, the third gear rack 620 and the fourth gear rack 630 do not need to be disposed inside the first guide rail 110 and the second guide rail 120, thus reducing the processing cost of the first guide rail 110 and the second guide rail 120. At the same time, the third gear rack 620 is connected to the first connecting surface 114, so its position can be adjusted according to actual needs, and it is easy to disassemble and install; similarly, the fourth gear rack 630 can also be quickly installed and disassembled with the second guide rail 120 through a through hole, and the relative distance between the fourth gear rack 630 and the second guide rail 120 is easy to adjust.

[0077] It should be understood that the third gear rack 620 and the first connecting surface 114 can be fixed by means of snap-fit ​​connection, threaded connection, key pin connection, etc.

[0078] Example 3

[0079] Please refer to Figure 3 and Figure 4 This application also provides a welding device, which includes the long and short guide rail movement structure 100 of any of the above embodiments.

[0080] In this embodiment, since the welding equipment includes the long and short guide rail movement structure 100 of any of the above embodiments, the two end faces of the second guide rail 120 form a moving stroke when the second guide rail 120 moves, and the moving stroke is within the length range of the first guide rail 110. Therefore, even if the second guide rail 120 moves to its own movement limit in the Y direction, it cannot intersect with the first guide rail 110. Therefore, in this embodiment, when the second guide rail 120 is connected to the second worktable 400 and the second worktable 400 is driven to move in the Y direction, all parts of the second guide rail 120 are always in contact with the first guide rail 110, and there is no part that exceeds the first guide rail 110. Therefore, the force on the second guide rail 120 is always in a uniform state, with good consistency, and the processed product has high quality.

[0081] In summary, the welding equipment of this embodiment can avoid ensuring the consistency of the first guide rail 110 and the second guide rail 120 when the work platforms move relative to each other, thereby improving the welding quality.

[0082] Further, please refer to Figure 3 and Figure 4 , Figure 16 and Figure 17 The welding equipment includes a first workbench 300 and a second workbench 400. The second workbench 400 is stacked on the first workbench 300. One of the first workbench 300 and the second workbench 400 is connected to the first guide rail 110 and the other is connected to the second guide rail 120.

[0083] In this configuration, compared to the first guide rail 110, the second guide rail 120 is positioned on a side away from the center of the first worktable 300; or,

[0084] Compared to the first guide rail 110, the second guide rail 120 is located on one side closer to the center of the first worktable 300.

[0085] In this embodiment, when installing the first guide rail 110 and the second guide rail 120, the guide rail closer to the center of the first worktable 300 is typically installed first, followed by the guide rail farther from the center of the first worktable 300. Therefore, as... Figure 16 As shown in the diagram, the dashed arrow indicates the direction of force. If the guide rail furthest from the center of the first worktable 300 is the first guide rail 110, then the first guide rail 110 is longer than the already fixed second guide rail 120. The portion extending beyond the second guide rail 120 will be subjected to a force towards the center of the first worktable 300 during installation. Therefore, the first guide rail 110 may bend and deform in the direction shown by arrow D in the diagram, ultimately leading to a decrease in positioning accuracy. Figure 17 As shown, when the second guide rail 120 is located on the side away from the center of the first worktable 300, the first guide rail 110 has already been installed, and the second guide rail 120 does not extend beyond the first guide rail 110. Therefore, even if a force is applied to the second guide rail 120 toward the center of the first worktable 300 during the installation of the second guide rail 120, the first guide rail 110 can still support the second guide rail 120 to prevent the second guide rail 120 from bending.

[0086] In summary, when the second guide rail 120 is located on the side away from the center of the first worktable 300, its positioning accuracy and welding quality are high after installation.

[0087] It should be understood that typically, a long and short guide rail motion structure 100 is connected to each side of a first worktable 300, or it can be like... Figure 4 As shown, two long and short guide rail motion structures 100 are connected to each side of the first worktable 300, and the second guide rails 120 of the two long and short guide rail motion structures 100 can be arranged opposite each other. At this time, the force on the first worktable 300 is balanced, and it is not easily deformed. The welding equipment of this application may also include a drive component 200, which can drive the second worktable 400 to reciprocate through the long and short guide rail motion structures. The drive component 200 can be a motor.

[0088] It is understood that the above-mentioned technical features can be used in any combination without limitation. The above embodiments only illustrate specific implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that for those skilled in the art, without departing from the concept of this utility model, the above-mentioned technical features can be freely combined, and several modifications and improvements can be made, all of which fall within the protection scope of this utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of this utility model should fall within the coverage of the claims of this utility model.

Claims

1. A motion structure with long and short guide rails, characterized in that, include: First guide rail; The second guide rail has a length less than that of the first guide rail and is movably connected to the first guide rail. Along the direction of movement of the second guide rail, the two opposite end faces of the second guide rail form a moving stroke when the second guide rail moves, and the moving stroke is within the length range of the first guide rail.

2. The long and short guide rail motion structure according to claim 1, characterized in that, The first guide rail has a connecting protrusion on the side facing the second guide rail, and the second guide rail has a connecting groove on the side facing the first guide rail. The connecting protrusion matches the shape of the connecting groove and abuts against the connecting groove.

3. The long and short guide rail motion structure according to claim 2, characterized in that, The first guide rail is provided with a first connecting surface, a first inclined surface and a second inclined surface for connecting external devices; the first inclined surface and the first connecting surface form an obtuse angle, and the second inclined surface is disposed opposite to the side of the first guide rail where the first connecting surface is not disposed, and the first inclined surface and the second inclined surface together define the connecting protrusion.

4. The long and short guide rail motion structure according to claim 3, characterized in that, The long and short guide rail motion structure also includes an intermediate frame, which is disposed between the first guide rail and the second guide rail. The intermediate frame includes a first rolling element and a second rolling element that are connected to each other. The first rolling element and the second rolling element abut against the first inclined surface and the second inclined surface, respectively. Along the length direction of the first guide rail, the first rolling element and the second rolling element are each provided with a plurality of rolling parts, which are balls or needle rollers.

5. The long and short guide rail motion structure according to claim 4, characterized in that, The long and short guide rail motion structure also includes a first gear, a first receiving groove is provided between the first inclined surface and the second inclined surface, a first gear rack is provided in the first receiving groove, a second receiving groove is provided in the connecting groove, the first receiving groove and the second receiving groove are arranged opposite to each other, a second gear rack is provided in the second receiving groove, a first gear hole is provided between the first rolling element and the second rolling element, the first gear is rotatably connected to the inner wall of the first gear hole, and the first gear meshes with the first gear rack and the second gear rack.

6. The long and short guide rail motion structure according to claim 2, characterized in that, Along the movement direction of the second guide rail, axial end faces are provided on both sides of the second guide rail, and the connecting groove penetrates the axial end faces; Wherein, the connection between the axial end face and the connecting groove is provided with a chamfer; and / or, The connection between the axial end face and the connecting groove is provided with a rounded corner.

7. The long and short guide rail motion structure according to claim 1, characterized in that, The first guide rail has two sections, and the two first guide rails are respectively movably connected to both sides of the second guide rail.

8. The long and short guide rail motion structure according to claim 1, characterized in that, The long and short guide rail motion structure also includes an intermediate frame, which is disposed between the first guide rail and the second guide rail and is rotatably connected to both the first guide rail and the second guide rail; the first guide rail is provided with a first connecting surface for connecting external devices. The long and short guide rail motion structure also includes a second gear, a third gear rack and a fourth gear rack. The third gear rack is connected to the first connecting surface, and the fourth gear rack is disposed on the second guide rail and located on the side of the second guide rail away from the first connecting surface. The second gear passes through the intermediate frame, and one end of the second gear meshes with the third gear rack, and the other end meshes with the fourth gear rack.

9. A welding device, characterized in that, The welding equipment includes the long and short guide rail motion structure described in any one of claims 1 to 8.

10. The welding equipment according to claim 9, characterized in that, The welding equipment includes a first workbench and a second workbench, with the second workbench stacked on top of the first workbench. One of the first workbench and the second workbench is connected to the first guide rail, and the other is connected to the second guide rail. In this configuration, the second guide rail is positioned on a side further away from the center of the first worktable, compared to the first guide rail; or... Compared to the first guide rail, the second guide rail is located on the side closer to the center of the first worktable.

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