A multi-model welding fixture switching system

Abstract

The present application relates to the technical field of welding fixtures, and in particular to a multi-vehicle welding fixture switching system. The multi-vehicle welding fixture switching system includes a base, a fixture slide and a flap mechanism, wherein a guide rail is provided on the base, and a first limit unit and a second limit unit are provided at both ends of the base respectively; the fixture slide is slid on the guide rail and limited between the first limit unit and the second limit unit; the flap mechanism is provided on the fixture slide, including a flip member, which is movably connected to the fixture slide, and the fixture slide is configured as follows: when the fixture slide is located at the edge position, the fixture slide is connected to the first limit unit or the second limit unit, and when the fixture slide is located in the middle position, the flip member is connected to the first limit unit or the second limit unit. The embodiment of the present application provides a multi-vehicle welding fixture switching system to solve the problems of complex structure and high cost of the existing multi-vehicle welding fixture switching system in the related art.

Description

Technical Field

[0001] The present application relates to the technical field of welding fixtures, and in particular to a multi-vehicle welding fixture switching system. Background Art

[0002] With the increasing variety of automobile body-in-white, many fixtures need to be used for mixed production of more than three wheelbase or width models in the same series. When producing different models, the fixture positioning and clamping unit needs to switch more than three positions in the length or width direction.

[0003] Multi-model fixture switching systems and turntable fixture systems are often used in body-in-white welding lines. In the related technologies, there are two commonly used methods. The first is to use a single servo cylinder for switching, but the cost of the servo cylinder is too high and difficult to implement; the second is to use multiple cylinders and combine them with multi-layer guide rails to achieve superimposed switching. Although the cylinder cost is lower, the superposition of multiple layers of guide rails will cause the clamp volume to be too large, and the cylinder uses a pneumatic control method. During the process of stopping at the middle position, even if a three-position center sealing valve is used, the accuracy and reliability of the fixture positioning and clamping unit cannot be guaranteed. Therefore, a reliable and low-cost multi-model welding fixture switching device and method is urgently needed. Summary of the invention

[0004] The embodiment of the present application provides a multi-vehicle welding fixture switching system to solve the problem of complex structure and high cost of the existing multi-vehicle welding fixture switching system in the related art.

[0005] To achieve the above objectives, the present application provides a multi-vehicle welding fixture switching system, which includes:

[0006] A base, wherein a guide rail is disposed on the base, and a first limiting unit and a second limiting unit are respectively disposed at two ends of the base along the length direction of the guide rail;

[0007] A fixture slide, which is slidably disposed on the guide rail and is limited between the first limiting unit and the second limiting unit;

[0008] A flap mechanism is arranged on the fixture slide, the flap mechanism includes a flip member, the flip member is movably connected to the fixture slide, the fixture slide has an edge position and a middle position, and the fixture slide is configured as follows:

[0009] When the fixture slide is located at an edge position, the fixture slide is connected to the first limiting unit or the second limiting unit, and when the fixture slide is located at a middle position, the flipping member is connected to the first limiting unit or the second limiting unit;

[0010] The flap mechanism comprises a mounting plate, the mounting plate is connected to the fixture slide, and the flip member is movably connected to the mounting plate;

[0011] The flip member comprises a mounting arm and a flap, one end of the mounting arm is rotatably connected to the mounting plate, and the other end is fixedly connected to the flap;

[0012] A third limiting unit is provided at one end of the mounting plate close to the flap, and the flap mechanism is configured such that when the fixture slide is located at the middle position, the flip member abuts against the third limiting unit;

[0013] The length direction of the flap is parallel to the length direction of the guide rail;

[0014] Along the length direction of the flap, at least one end of the flap is provided with an adjustment block, and the adjustment block is rotatably connected to the flap.

[0015] In some embodiments, a clamping portion is provided at one end of the mounting arm facing the mounting plate, and the flip member is configured such that when the flip member abuts against the third limiting unit, the clamping portion is clamped with the third limiting unit.

[0016] In some embodiments, the flip-plate mechanism is disposed at one end of the clamp slide close to the first limit unit or the second limit unit, or, there are at least two flip-plate mechanisms, and the two flip-plate mechanisms are respectively disposed at one end of the clamp slide close to the first limit unit and the clamp slide close to the second limit unit.

[0017] In some embodiments, the flap mechanism includes a second control member, which is connected to the flip member and is used to control the flip member to rotate relative to the mounting plate.

[0018] In some embodiments, the second control member includes a cylinder.

[0019] In some embodiments, there are two first limiting units, and the two first limiting units are arranged on both sides of the guide rail along the width direction of the guide rail;

[0020] There are two flap mechanisms, which are arranged at one end of the fixture slide close to the first limit unit. When the fixture slide is located in the middle position, the two flap mechanisms are respectively in contact with the two first limit units.

[0021] In some embodiments, it also includes:

[0022] The first control component comprises an output end, one end of the first control component is connected to the base, and the output end is connected to the fixture slide. The first control component is used to drive the fixture slide to move along the guide rail.

[0023] The beneficial effects of the technical solution provided by this application include:

[0024] The embodiment of the present application provides a multi-vehicle type welding fixture switching system. Since one or more intermediate switching positions are added to the fixture slide through the contact between the flap mechanism and the first limit unit or the second limit unit, there is no need to use a servo cylinder for fine control. A low-cost cylinder can be used to control whether the flip part of the flap mechanism is connected to the first limit unit or the second limit unit to control the hovering of the fixture slide at a certain position, thereby ensuring the accuracy and reliability of the fixture in place. The length of the flip part can be made according to different stroke switching requirements to achieve switching of vehicles with multiple wheelbases or widths in the same series. It has the characteristics of easy operation, simple structure and low investment cost. Therefore, it can solve the problems of complex structure and high cost of the existing multi-vehicle type welding fixture switching system in the related technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, 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 present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 A top view of the fixture slide provided in an embodiment of the present application abutting against the first limiting unit;

[0027] Figure 2 A top view of the fixture slide provided in an embodiment of the present application abutting against the second limiting unit;

[0028] Figure 3 A top view of the flap mechanism provided in an embodiment of the present application abutting against the second limiting unit;

[0029] Figure 4 A schematic diagram of the structure of the flap mechanism provided in the embodiment of the present application when it is opened;

[0030] Figure 5 This is a schematic diagram of the flap mechanism provided in an embodiment of the present application when it is flipped into place.

[0031] In the figure: 1. fixture slide; 2. base; 21. guide rail; 3. first limit unit; 4. second limit unit; 5. first control member; 6. flap mechanism; 61. mounting plate; 62. third limit unit; 7. flip member; 71. flap; 711. adjustment block; 72. mounting arm; 721. clamping part; 73. connecting plate; 8. second control member. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0033] The embodiment of the present application provides a multi-vehicle welding fixture switching system, which can solve the problems of complex structure and high cost of the existing multi-vehicle welding fixture switching system in the related technology.

[0034] See also Figures 1 to 5 As shown, the embodiment of the present application provides a multi-vehicle welding fixture switching system, which includes a base 2, a fixture slide 1 and a flap mechanism 6, wherein, in combination with Figures 1 to 3 As shown, a guide rail 21 is provided on the base 2, and along the length direction of the guide rail 21, a first limiting unit 3 and a second limiting unit 4 are respectively provided at both ends of the base 2; specifically, the first limiting unit 3 and the second limiting unit 4 are used to limit the sliding of the fixture slide 1.

[0035] Furthermore, combined with Figures 1 to 3 As shown, the fixture slide 1 is slidably disposed on the guide rail 21 , and the sliding range of the fixture slide 1 is between the first limiting unit 3 and the second limiting unit 4 .

[0036] Furthermore, the flap mechanism 6 is arranged on the fixture slide 1. Figure 4 and Figure 5 As shown, the flap mechanism 6 includes a flip member 7, and the flip member 7 can move relative to the fixture slide 1, and the fixture slide 1 has an edge position and a middle position:

[0037] Combination Figure 1 and Figure 2 As shown, at this time, the fixture slide 1 is located at the edge position, and the fixture slide 1 is connected to the first limiting unit 3 or the second limiting unit 4, wherein Figure 1 The fixture slide 1 is shown connected to the first limit unit 3, which is the first position of the fixture. Figure 2 The fixture slide 1 is shown connected to the second limit unit 4, which is the second position of the fixture; Figure 3 As shown, at this time, the clamp slide 1 is located in the middle position, and the clamp slide 1 is connected to the second limit unit 4 through the flip member 7. This is the third position of the clamp. At this time, the clamp slide 1 is between the first position and the second position, providing more stop positions for the clamp slide 1.

[0038] Furthermore, the flap mechanism 6 can be arranged at any end of the fixture slide 1 along the length direction of the guide rail 21 , so the flip member 7 can be connected to the first limiting unit 3 or the second limiting unit 4 .

[0039] Of course, a flap mechanism 6 can also be provided at both ends of the fixture slide 1. When the fixture slide 1 slides toward the first limit unit 3, the flap mechanism 6 located at one side of the first limit unit 3 abuts against the first limit unit 3 to achieve positioning; when the fixture slide 1 slides toward the second limit unit 4, the flap mechanism 6 located at one side of the second limit unit 4 abuts against the second limit unit 4 to achieve positioning. In this way, the fixture slide 1 can be positioned at four positions.

[0040] Furthermore, the size of the flip member 7 in the flap mechanism 6 can be set according to the needs of different vehicle models to achieve the purpose of limiting different positions.

[0041] The multi-vehicle welding fixture switching system provided in the embodiment of the present application adds one or more intermediate switching positions to the fixture slide 1 through the contact between the flap mechanism 6 and the first limit unit 3 or the second limit unit 4. There is no need to use a servo cylinder for fine control. A low-cost cylinder can be used to control whether the flip part 7 of the flap mechanism 6 is connected to the first limit unit 3 or the second limit unit 4 to control the fixture slide 1 to hover at a certain position, thereby ensuring the accuracy and reliability of the fixture in place. The length of the flip part 7 can be made according to different stroke switching requirements to achieve switching of vehicles with multiple wheelbases or widths in the same series. It has the characteristics of easy operation, simple structure and low investment cost. Therefore, it can solve the problems of complex structure and high cost of the existing multi-vehicle welding fixture switching system in the related technology.

[0042] In some optional embodiments, see Figure 4 and Figure 5 As shown, the flip mechanism 6 includes a mounting plate 61 , the mounting plate 61 is connected to the fixture slide 1 , and the flip member 7 is movably connected to the mounting plate 61 .

[0043] Specifically, combined Figure 4 As shown, Figure 4 is a schematic diagram of the flap mechanism 6 when it is opened, and the flip member 7 is as shown in FIG. Figure 1 and Figure 2 As shown, it is in the lifted state and does not contact the first limiting unit 3 or the second limiting unit 4, so as to avoid interference between the fixture slide 1 and the base 2 when sliding; Figure 5 is a schematic diagram of the flap mechanism 6 being flipped into position, at which time the flip member 7 is as shown in FIG. Figure 3 As shown, the flip member 7 is flipped and abuts against the first limit unit 3 or the second limit unit 4, so that the fixture slide 1 stays in the middle position. Figure 3 As shown, it abuts against the second limiting unit 4 .

[0044] Alternatively, see Figure 4 and Figure 5 As shown, the flip member 7 includes a mounting arm 72 and a flap 71. One end of the mounting arm 72 is rotatably connected to the mounting plate 61, and the other end is fixedly connected to the flap 71. The flap 71 is lifted and flipped into place by relative rotation between the mounting arm 72 and the mounting plate 61.

[0045] Preferably, the mounting arm 72 is vertically arranged with the flap 71. When the flip member 7 is flipped into place, the flap 71 is Figure 5 As shown, the flap 71 is arranged parallel to the guide rail 21 , and one end of the flap 71 abuts against the first limiting unit 3 or the second limiting unit 4 .

[0046] Furthermore, combined with Figure 4 and Figure 5 As shown, a third limiting unit 62 is provided at one end of the mounting plate 61 close to the flap 71 , and the flap mechanism 6 is configured such that when the fixture slide 1 is located in the middle position, the flip member 7 abuts against the third limiting unit 62 .

[0047] Specifically, the flip member 7 is as follows Figure 5 When the flap 71 is flipped into place, the length direction of the flap 71 is parallel to the length direction of the guide rail 21; along the length direction of the flap 71, at least one end of the flap 71 is provided with an adjustment block 711, and the adjustment block 711 is rotatably connected to the flap 71. At this time, the adjustment block 711 abuts against the first limiting unit 3 or the second limiting unit 4.

[0048] Optionally, there are two adjustment blocks 711, which are respectively arranged at both ends of the flap 71. The adjustment block 711 is detachably connected to the flap 71, and by replacing the adjustment blocks 711 of different lengths, the length of the flap 71 can be changed to adapt to the production of models with different wheelbases or widths.

[0049] Optionally, the adjustment block 711 is connected to the flap 71 via bolts.

[0050] Further, see Figure 4 and Figure 5 As shown, a clamping portion 721 is provided at one end of the mounting arm 72 facing the mounting plate 61 , and the flip member 7 is configured such that when the flip member 7 abuts against the third limiting unit 62 , the clamping portion 721 is clamped with the third limiting unit 62 .

[0051] Specifically, the third limiting unit 62 is arranged on the flap 71. Figure 4 Raised position shown to Figure 5 The end of the flipped position shown is used to limit the further rotation of the mounting arm 72. After flipping into place, the combination Figure 5As shown, one end of the flap 71 away from the mounting plate 61 abuts against the first limiting unit 3 or the second limiting unit 4, and the end of the flap 71 toward the mounting plate 61 is clamped with the third limiting unit 62 through the clamping portion 721 to limit rotation. Both ends of the flip member 7 are directly subjected to force to ensure the accuracy and reliability of the clamp in place.

[0052] Optionally, combined Figure 4 and Figure 5 As shown, the flip member 7 further includes a connecting plate 73. Specifically, one end of the connecting plate 73 is rotatably connected to the mounting plate 61, and the other end is connected to the mounting arm 72. Preferably, the connecting plate 73 and the mounting arm 72 are as shown in FIG. Figure 5 The staggered connection shown, that is, Figure 5 In the schematic diagram of the flip member 7 flipped into place, the mounting arm 72 is located at one end of the connecting plate 73 close to the mounting plate 61. In this way, the clamping portion 721 provided on the mounting arm 72 can be arranged closer to the third limiting unit 62, and the thickness of the junction between the flip member 7 and the third limiting unit 62 can be increased, so that when the flip plate 71 is limited between the second limiting unit 4 and the third limiting unit 62, it has sufficient strength, reducing the risk of breaking.

[0053] In some optional embodiments, the flip mechanism 6 is arranged at one end of the clamp slide 1 close to the first limit unit 3 or the second limit unit 4, or there are at least two flip mechanisms 6, and the two flip mechanisms 6 are respectively arranged at one end of the clamp slide 1 close to the first limit unit 3 and one end of the clamp slide 1 close to the second limit unit 4.

[0054] Figures 1 to 3 The embodiment shown is one in which the flap mechanism 6 is arranged on one side, that is, the flap mechanism 6 is arranged at one end close to the second limiting unit 4 .

[0055] In some optional embodiments, combined with Figure 4 and Figure 5 As shown, the flap mechanism 6 includes a second control member 8 , which is connected to the flip member 7 and is used to control the flip member 7 to rotate relative to the mounting plate 61 .

[0056] Optionally, the second control member 8 comprises a cylinder, combined with Figure 4 As shown, during the clamp vehicle type switching movement, the cylinder drives the flap 71 to open upward to avoid interference with the first limiting unit 3 or the second limiting unit 4 on the clamp; Figure 5 As shown, after the vehicle model is switched into place, the flap 71 is flipped downward under the drive of the cylinder, and the adjustment block 711 at the end of the flap 71 away from the mounting plate 61 is clamped with the second limiting unit 4, and the end of the flip member 7 close to the mounting plate 61 is clamped with the third limiting unit 62 through the clamping portion 721, the flap 71 stops rotating, and the two ends of the flap 71 are directly subjected to force, thereby ensuring the accuracy and reliability of the clamp in place and achieving the limiting effect.

[0057] Furthermore, flaps 71 of different lengths can be manufactured according to different travel switching requirements. The mechanism can realize the switching of vehicles with multiple wheelbases or widths in the same series, and has the characteristics of convenient operation, simple structure and low investment cost.

[0058] In some optional embodiments, see Figure 2 and Figure 3 As shown, there are two first limiting units 3, and the two first limiting units 3 are arranged on both sides of the guide rail 21 along the width direction of the guide rail 21;

[0059] Correspondingly, there are two flap mechanisms 6 , which are arranged at one end of the fixture slide 1 close to the first limit unit 3 . When the fixture slide 1 is located in the middle position, the two flap mechanisms 6 abut against the two first limit units 3 respectively.

[0060] like Figures 1 to 3 As shown, the present application provides an embodiment, that is, two flap mechanisms 6 are arranged at one end close to the second limiting unit 4. Optionally, the second limiting unit 4 is a limiting block, and is arranged on the guide rail 21 to limit the fixture slide 1.

[0061] In some optional embodiments, the multi-model welding fixture switching system provided in the present application further includes a first control component 5, specifically, in combination with Figure 1 As shown, the output end of the first control member 5 is connected to the fixture slide 1, and the other end is connected to the base 2, and is used to drive the fixture slide 1 to move along the guide rail 21. Specifically, the first control member 5 can use a cylinder. On the one hand, the cylinder is relatively cheap. On the other hand, due to the provision of the flip member 7, the fixture slide 1 can be suspended at the middle position by lifting and lowering the flap 71 (flipping in place or not), and the suspension position of the fixture slide 1 can be controlled by controlling the length of the flap 71, so that the accuracy and reliability of the switching of the fixture positioning and clamping can be effectively guaranteed.

[0062] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0063] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0064] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A multi-model welding fixture switching system, It is characterized in that It includes: A base (2), wherein a guide rail (21) is arranged on the base (2), and along the length direction of the guide rail (21), a first limiting unit (3) and a second limiting unit (4) are respectively arranged at two ends of the base (2); A fixture slide (1) which is slidably mounted on the guide rail (21) and is limited between the first limiting unit (3) and the second limiting unit (4); A flap mechanism (6) is arranged on the fixture slide (1), the flap mechanism (6) comprises a flip member (7), the flip member (7) is movably connected to the fixture slide (1), the fixture slide (1) has an edge position and a middle position, and the fixture slide (1) is configured as follows: When the clamp slide (1) is located at an edge position, the clamp slide (1) is connected to the first limit unit (3) or the second limit unit (4); when the clamp slide (1) is located at a middle position, the flip member (7) is connected to the first limit unit (3) or the second limit unit (4); the flip mechanism (6) comprises a mounting plate (61), the mounting plate (61) is connected to the clamp slide (1), and the flip member (7) is movably connected to the mounting plate (61); The flip member (7) comprises a mounting arm (72) and a flap (71); one end of the mounting arm (72) is rotatably connected to the mounting plate (61), and the other end is fixedly connected to the flap (71); A third limiting unit (62) is provided at one end of the mounting plate (61) close to the flap (71), and the flap mechanism (6) is configured such that when the fixture slide (1) is located at a middle position, the flip member (7) abuts against the third limiting unit (62); The length direction of the flap (71) is parallel to the length direction of the guide rail (21); Along the length direction of the flap (71), at least one end of the flap (71) is provided with an adjustment block (711), and the adjustment block (711) is rotatably connected to the flap (71).

2. The multi-model welding fixture switching system as claimed in claim 1, Features: A clamping portion (721) is provided at one end of the mounting arm (72) facing the mounting plate (61), and the flip member (7) is configured such that when the flip member (7) abuts against the third limiting unit (62), the clamping portion (721) is clamped with the third limiting unit (62).

3. The multi-model welding fixture switching system as claimed in claim 1, Features: The flap mechanism (6) is arranged at one end of the clamp slide (1) close to the first limit unit (3) or the second limit unit (4), or there are at least two flap mechanisms (6), and the two flap mechanisms (6) are respectively arranged at one end of the clamp slide (1) close to the first limit unit (3) and one end of the clamp slide (1) close to the second limit unit (4).

4. The multi-model welding fixture switching system as claimed in claim 1, Features: The flap mechanism (6) comprises a second control member (8), which is connected to the flip member (7) and is used to control the flip member (7) to rotate relative to the mounting plate (61).

5. The multi-model welding fixture switching system as claimed in claim 4, Features: The second control member (8) comprises a cylinder.

6. The multi-model welding fixture switching system as claimed in claim 1, Features: There are two first limiting units (3), and the two first limiting units (3) are arranged on both sides of the guide rail (21) along the width direction of the guide rail (21); There are two flap mechanisms (6), and the two flap mechanisms (6) are arranged at one end of the clamp slide (1) close to the first limit unit (3). When the clamp slide (1) is located in the middle position, the two flap mechanisms (6) are respectively in contact with the two first limit units (3).

7. The multi-model welding fixture switching system as claimed in claim 1, It is characterized in that It also includes: A first control component (5) comprises an output end, one end of the first control component (5) is connected to the base (2), and the output end is connected to the clamp slide (1), and the first control component (5) is used to drive the clamp slide (1) to move along the guide rail (21).

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