Connecting device and workpiece assembling method

Abstract

The invention discloses a connecting device and a workpiece assembling method, and belongs to the technical field of mechanical connecting structures. The connecting device comprises a driving assembly which is provided with two output ends; the two locking pieces comprise connecting parts and locking parts, the two connecting parts are connected with the output ends in a one-to-one correspondence mode, and the two connecting parts are connected with the locking parts in a one-to-one correspondence mode; the size of the locking parts is smaller than that of the mounting holes, so that the two locking parts can penetrate through the corresponding mounting holes, and are driven by the output end to move relative to the first external workpiece and the second external workpiece to the positions where local parts of the locking parts are overlapped with the peripheries of the mounting holes; and therefore, the locking part and the driving assembly jointly clamp the first external workpiece and the second external workpiece. According to the workpiece assembling method, the first external workpiece and the second external workpiece are temporarily fixed through the connecting device. The structure to be connected can be conveniently connected and fixed, the connection stability is ensured, disassembly is convenient, meanwhile, operation is easy, and use is convenient.

Description

Technical Field

[0001] The present application belongs to the technical field of mechanical connection structures, and in particular, relates to a connection device and a workpiece assembly method. Background Art

[0002] Mechanical connection refers to the connection of two or more components by mechanical means to achieve force transmission, structural support or coordination of movement. This connection method is widely used in many fields such as machinery, automobiles, aerospace, and construction. Mechanical connection mainly relies on fasteners (such as bolts, rivets, pins, etc.) or connectors (such as keys, splines, retaining rings, etc.) to fasten two or more components together.

[0003] In the automotive manufacturing industry, mechanical connection structures are a key link in vehicle structural design and production, such as steel plate connection. In the prior art, body steel plates are generally connected by fasteners such as bolts and rivets, or by welding; if the purpose is not for permanent connection, but for workpiece assembly and fastening, bolts are generally used because they can be removed later.

[0004] However, for the workpiece assembly structure, the current connection method is not convenient for disassembly. For example, there are certain shortcomings in using bolts to assemble two steel plates. For example, if the two steel plates are to be prevented from rotating relative to each other, at least two sets of bolts are required. Both sets of bolts are tightened and unscrewed manually, which is troublesome to operate and takes a long time to load and unload. Auxiliary tools such as wrenches are also required. In addition, bolt-connected components are also prone to loosening due to shaking. Especially when used for workpiece assembly and subsequently need to be disassembled, the bolts will not be tightened very tightly. Summary of the invention

[0005] The present application aims to solve the technical problem of disassembly of workpiece assembly structure at least to a certain extent. To this end, the present application provides a connecting device and a workpiece assembly method, which can conveniently connect and fix the structures to be connected, ensure the stability of the connection, and facilitate disassembly. At the same time, it is simple to operate and easy to use.

[0006] In a first aspect, an embodiment of the present application provides a connecting device for connecting a first external workpiece with at least two mounting holes and a second external workpiece, the connecting device comprising:

[0007] A drive assembly having two output ends moving in opposite directions;

[0008] Two locking members, the locking members include a connecting portion and a locking portion, one end of the two connecting portions are respectively connected to the output ends in a one-to-one correspondence, and the other ends of the two connecting portions are respectively connected to the locking portions in a one-to-one correspondence;

[0009] Among them, the size of the locking part is smaller than the mounting hole, so that the two locking parts can pass through the corresponding mounting holes, and move relative to the first external workpiece and the second external workpiece under the drive of the output end, and move to a position where a part of the locking part overlaps with the periphery of the mounting hole, so that the locking part and the driving assembly can jointly clamp the first external workpiece and the second external workpiece.

[0010] In an optional embodiment, the drive assembly includes:

[0011] An adjusting member, used for transmitting driving force;

[0012] The transmission member includes a transmission body and a transmission rod, and a first adjustment block and a second adjustment block as output ends. Both ends of the transmission rod are connected to the transmission body, the transmission rod is transmission-connected to the adjustment member, the first adjustment block and the second adjustment block are transmission-connected to the transmission rod respectively, and driven by the adjustment member, the first adjustment block and the second adjustment block move synchronously toward or in the opposite direction relative to the transmission rod.

[0013] In an optional embodiment, the transmission rod is provided with symmetrically arranged threaded sections, and the two threaded sections are respectively matched with the threads between the first adjustment block and the second adjustment block.

[0014] In an optional embodiment, the transmission member is provided with a driven wheel connected to the transmission rod, and the driven wheel is transmission-connected to the adjusting member.

[0015] In an optional embodiment, the adjusting member includes an adjusting column and a driving wheel, the driving wheel is connected to the adjusting column, and the driving wheel is meshed with the driven wheel.

[0016] In an optional embodiment, the connecting part includes a vertical cylinder, an inner rod and a first elastic member, the vertical cylinder is connected to the output end, the first elastic member is fixed in the vertical cylinder, one end of the inner rod is connected to the first elastic member, and the other end of the inner rod is connected to the locking part.

[0017] In an optional embodiment, the connecting part also includes a vertical rod, a pressure plate and a second elastic member. The inner rod is recessed with an inner cavity, and the pressure plate and the second elastic member are placed in the inner cavity. One end of the vertical rod is connected to the pressure plate, and the other end of the vertical rod passes through the inner rod and is connected to the locking part. One end of the second elastic member is connected to the pressure plate, and the other end is connected to the inner wall of the inner rod.

[0018] In an optional embodiment, a lateral adjustment member is further included, a guide slope is provided on the side of the inner rod, the slope at the guide slope is inclined toward the locking portion, the guide slope is located in the vertical cylinder, and the lateral adjustment member is movably connected to the vertical cylinder.

[0019] In an optional embodiment, the lateral adjustment member includes a side column, a mounting plate and an oblique push block, one end of the side column passes through and protrudes from the vertical tube, the mounting plate is connected to the other end of the side column and limits the side column, the oblique push block is connected to the mounting plate, and the oblique push block is used to act laterally with the guide inclined surface.

[0020] In a second aspect, an embodiment of the present application provides a workpiece assembly method of a connecting device, which uses the above-mentioned connecting device, and the workpiece assembly method includes:

[0021] Stacking the first external workpiece and the second external workpiece, and adjusting the relative positions of the first external workpiece and the second external workpiece so that the mounting hole of the first external workpiece is aligned with the mounting hole of the second external workpiece;

[0022] Start the driving assembly to separate or approach the two output ends from each other until the distance between the two output ends reaches the distance between the two mounting holes on the first external workpiece and the second external workpiece, and then stop the driving assembly;

[0023] Acting laterally on the lateral adjustment member, so that the lateral adjustment member is pressed against the guide inclined surface; then the two locking parts are placed into the corresponding mounting holes and passed through, so that the locking parts are exposed;

[0024] After the locking part is completely exposed, the driving assembly is started again to adjust the distance between the two locking parts so that a part of the locking part overlaps with the periphery of the mounting hole, and the driving assembly is stopped; at the same time, the lateral adjustment member is constrained by the mounting hole and acts on the guide slope so that the locking part and the driving assembly jointly clamp the first external workpiece and the second external workpiece; the connection between the first external workpiece and the second external workpiece is completed.

[0025] It can be seen from the above technical solution that the beneficial effects of this application are:

[0026] 1. The connecting device of the present application can conveniently temporarily fix the two mounting holes of the first external workpiece and the second external workpiece. The driving component drives the two locking parts to be relatively close to or separated through the opposite or opposite movements of the output end, so that the spacing between the two locking parts can be adjusted to adapt to the spacing of two of the mounting holes. By placing the locking part in the mounting hole and passing it through, the locking part can be moved out of the mounting hole and clamp the first external workpiece or the second external workpiece when they are close to or separated from each other. In this way, the driving component is used on one side of the first external workpiece and the locking part is used on the other side. Both can clamp the first external workpiece and the second external workpiece at the same time to achieve connection and form a workpiece assembly. In this way, the structures to be connected can be conveniently connected and fixed, the stability of the connection is ensured, and disassembly is convenient. At the same time, the operation is simple and easy to use.

[0027] 2. The method of the present application does not use bolts. Through the driving assembly, the two locking parts can be matched with the mounting holes, and then the locking parts are placed in the mounting holes. The spacing is adjusted, and the locking parts are clamped on the close side or the separated side of the two mounting holes. In this way, the locking parts can be on one side of the first external workpiece and the second external workpiece, and the driving assembly is on the other side, and the workpieces are clamped at the same time to form a workpiece assembly. When disassembling, the position of the locking parts can be adjusted to remove it. The above whole process is simple to operate and easy to use, and realizes rapid disassembly and assembly between the external mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other embodiments and drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 A schematic diagram showing an application of an embodiment of the connection device of the present invention is shown;

[0030] Figure 2 A schematic diagram showing an application of an embodiment of the connection device of the present invention is shown;

[0031] Figure 3 A half-section view of an embodiment of a connecting device of the present invention is shown;

[0032] Figure 4 A cross-sectional view of an embodiment of a connecting device of the present invention is shown;

[0033] Figure 5 A half-section view of an embodiment of a locking member and a transmission member of the present invention is shown;

[0034] Figure 6 A half-section view of an embodiment of a locking member of the present invention is shown;

[0035] Figure 7 A schematic diagram showing a workpiece assembly method of the connection device of the present invention is shown;

[0036] Figure 8 A schematic diagram showing a workpiece assembly method of the connection device of the present invention is shown;

[0037] 13. The axial displacement of the first and second ends of the axial displacement rods is shown in FIG. 13. The axial displacement of the first and second ends of the axial displacement rods is shown in FIG. 13. The axial displacement of the second and second ends of the axial displacement rods is shown in FIG. 13. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0042] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0043] Please refer to Figure 1 In a first aspect of the present application, a connecting device is provided for connecting an external component 200 with at least two mounting holes 201. The external component 200 may include at least two, such as the external component 200 includes a first external workpiece 210 and a second external workpiece 220. The first external workpiece 210 and the second external workpiece 220 are respectively provided with mounting holes 201 for facilitating installation in a subsequent process, and the number is greater than or equal to two. The connecting device 100 can connect two of the mounting holes 201. The connecting device 100 is used to connect the first external workpiece 210 and the second external workpiece 220. The second external workpiece 220 is temporarily connected to facilitate the positioning of the two. In actual use, the first external workpiece 210 is such as a door outer panel, and the second external workpiece 220 is such as a reinforcement plate. When the door outer panel and the reinforcement plate need to be processed at the same time, such as partially welding the two, the existing method of using bolts to connect is inconvenient, and the connecting bolts need to be aligned at at least two mounting holes 201, and then removed after processing. The entire disassembly and assembly process is relatively cumbersome. The use of the connecting device 100 can quickly temporarily fix the door outer panel and the reinforcement plate, and then quickly remove them, which is easy to operate.

[0044] The connecting device 100 includes a driving component and two locking members 130. The driving component has two output ends that move toward or in opposite directions. The output ends correspond to the locking members 130 one by one. The two output ends can simultaneously drive the two locking members 130 to move closer to or separate from each other. The driving component can adopt a dual-axis stepper motor. The driving component works by electrical drive. The output shafts of the dual-axis stepper motor are respectively located on both sides thereof. The driving component has a shell on the outside. The ends of the two output shafts are respectively fixed at the two ends inside the shell. The bottom of the shell is recessed with a groove for inserting a slider. The output end includes an output shaft and a slider. The slider is threadedly matched with the output shaft. In this way, the two sliders can be driven closer to or separate from each other through the corresponding output ends in the groove, and the slider is connected to the locking member 130, thereby driving the two locking members 130 to move closer to or separate from each other. The locking member 130 includes a connecting portion 131 and a locking portion 132. One ends of the two connecting portions 131 are connected to the output ends one by one, and the other ends of the two connecting portions 131 are connected to the locking portions 132 one by one. Taking one locking member 130 as an example, the end of the connecting portion 131 is connected to the output end, such as the end of the connecting portion 131 is welded to the slider, and the other end of the connecting portion 131 is connected to the locking member 130. Welding, screw connection or other connection methods can be used. The length of the connecting portion 131 is designed to be the distance between the outer sides of the first external workpiece 210 and the second external workpiece 220 at the corresponding mounting hole 201 after the first external workpiece 210 and the second external workpiece 220 are positioned, such as the distance from the top of the first external workpiece 210 to the bottom of the second external workpiece 220. If the first external workpiece 210 and the second external workpiece 220 are plate-shaped, the length of the connecting portion 131 is equal to the thickness of the two. On the other hand, if the connecting portion 131 is designed as a height-adjustable structure, the length of the connecting portion 131 is less than or equal to the above distance.

[0045] Please refer to Figure 2The locking portion 132 may adopt different structural forms, such as a rod-shaped structure, a plate-shaped structure or a block-shaped structure. The size of the locking portion 132 is smaller than the mounting hole 201, so that the two locking portions 132 can pass through the corresponding mounting holes 201. If the locking portion 132 is a rod-shaped structure, the length of the locking portion 132 is slightly smaller than the inner diameter of the mounting hole 201. If the locking portion 132 is a circular plate or a cylindrical structure, the outer diameter of the locking portion 132 is slightly smaller than the inner diameter of the mounting hole 201. In this way, the locking portion 132 can be inserted from the mounting hole 201 of the first external workpiece 210, and then inserted into the mounting hole 201 of the second external workpiece 220, and finally extended from the mounting hole 201 of the second external workpiece 220; when the locking portion 132 is extended from the mounting hole 201 of the second external workpiece 220, After 01 is extended outward, the two locking parts 132 are driven by the connecting part 131 at the output end to move relative to the first external workpiece 210 and the second external workpiece 220 to a position where a part of the locking part 132 overlaps with the periphery of the mounting hole 201, such as an edge or end of the locking part 132 is stuck at the edge of the periphery of the mounting hole 201 of the second external workpiece 220, so that the locking part 132 is stuck to the surface of the second external workpiece 220, and the shell of the driving component is tightly stuck on the surface of the first external workpiece 210, so that the locking part 132 and the driving component jointly clamp the first external workpiece 210 and the second external workpiece 220, thereby realizing temporary fixation of the first external workpiece 210 and the second external workpiece 220.

[0046] The workpiece assembly structure of the prior art is not convenient to disassemble, especially when multiple sets of connections are used, the assembly and disassembly time is long and auxiliary tools are required. The present application uses a connecting device 100 to conveniently temporarily fix the two mounting holes 201 of the first external workpiece 210 and the second external workpiece 220. The driving component drives the two locking parts 132 to be relatively close to or separated by the output end, so that the spacing between the two locking parts 132 can be adjusted to adapt to the spacing between two of the mounting holes 201. By placing the locking part 132 into the mounting hole 201 and passing it through, the locking part 132 can be moved out of the mounting hole 201, and the first external workpiece 210 or the second external workpiece 220 can be clamped close to or separated from each other. In this way, the driving component is used on one side of the first external workpiece 210 and the second external workpiece 220, and the locking part 132 is used on the other side. Both can clamp the first external workpiece 210 and the second external workpiece 220 at the same time to achieve connection and form a workpiece assembly. In this way, the structures to be connected can be conveniently connected and fixed, the stability of the connection is ensured, and disassembly is convenient. At the same time, the operation is simple and easy to use.

[0047] Please refer to Figure 3In an optional embodiment, the driving assembly is not an electric device. The driving assembly includes an adjusting member 110 and a transmission member 120. The adjusting member 110 is used to transmit the driving force. The adjusting member 110 can be manually operated or connected to an external driving device to drive. The adjusting member 110 has a handheld end to facilitate the handheld adjusting member 110 to rotate; the transmission member 120 includes a transmission body 121 and a transmission rod 122, and a first adjustment block 124 and a second adjustment block 125 as output ends. The bottom of the transmission body 121 is recessed to form a slide groove 121a, and the transmission rod 122 is placed in the installation space. The two ends of the transmission rod 122 are connected to the inner walls of the two ends of the transmission body 121. The transmission rod 122 is rotatable relative to the transmission body 121. The transmission rod 122 is connected to the adjusting member 110 in transmission connection. The middle part of the transmission rod 122 is provided with a transmission structure matching the adjusting member 110, such as gear transmission, belt transmission, etc., which can be 2 is provided with a gear, and the adjusting member 110 is also provided with a matching gear, so that the transmission rod 122 and the adjusting member 110 can transmit the driving force, and the first adjusting block 124 and the second adjusting block 125 are respectively connected to the transmission rod 122 in transmission mode, such as the first adjusting block 124 and the second adjusting block 125 are respectively placed in the slide groove 121a, the first adjusting block 124 and the second adjusting block 125 are spaced from each other, and the first adjusting block 124 and the second adjusting block 125 are respectively matched with the transmission rod 122 thread. Under the drive of the adjusting member 110, the first adjusting block 124 and the second adjusting block 125 move synchronously toward or in the opposite direction relative to the transmission rod 122, such as the transmission rod 122 is provided with symmetrically arranged thread segments, and the two thread segments are respectively matched with the first adjusting block 124 and the second adjusting block 125 thread. When the transmission rod 122 rotates, the transmission rod 122 can drive the first adjusting block 124 and the second adjusting block 125 to approach or separate from each other.

[0048] Please refer to Figure 4In an optional embodiment, the transmission member 120 is provided with a driven wheel 123 connected to the transmission rod 122, and the driven wheel 123 is transmission-connected to the adjusting member 110, and the driven wheel 123 is a bevel gear, which is arranged in the middle of the transmission rod 122 and is located between the two sections of the thread of the transmission rod 122; the adjusting member 110 includes an adjusting column 111 and a driving wheel 112, the adjusting column 111 is columnar, and the transmission body 121 is provided with a through hole for installing the adjusting column 111, one end of the adjusting column 111 is located outside the transmission body 121, and the other end of the adjusting column 111 passes through the through hole and is placed in the slide groove 121a, and a convex edge can be provided on the outer periphery of the adjusting column 111, so that the adjusting column 111 can be partially limited in the transmission body 121 to prevent the adjusting column 111 from disengaging, and the driving wheel 112 is connected to the adjusting column 111 in the slide groove 121a. 11. The driving wheel 112 may also adopt a bevel gear, so that the driving wheel 112 is meshed with the driven wheel 123. The transmission rod 122 is arranged horizontally as shown in the figure, and the adjusting column 111 is arranged vertically as shown in the figure. In this way, the transmission can be realized with the transmission rod 122 by horizontally rotating the adjusting column 111. The adjusting member 110 can be driven by an external force and drive the transmission rod 122 to rotate. At the same time, the transmission rod 122 drives the first adjustment block 124 and the second adjustment block 125 to approach or separate from each other. The two locking portions 132 approach or separate from each other with the first adjustment block 124 and the second adjustment block 125. When the locking portions 132 are opposite to the two mounting holes 201, the two locking portions 132 can pass through the corresponding mounting holes 201 and be stuck with the second external workpiece 220, and at the same time, the transmission body 121 presses the first external workpiece 210 tightly on the other side.

[0049] Please refer to Figure 5In an optional embodiment, the connecting portion 131 includes a vertical cylinder 133, an inner rod 134 and a first elastic member 135. The vertical cylinder 133 is cylindrical and hollow inside. The vertical cylinder 133 is connected to the output end, such as the bottom of the first adjustment block 124 is connected to the top of the vertical cylinder 133, and the bottom of the second adjustment block 125 is connected to the top of another vertical cylinder 133. In order to adjust the relative position between the output end and the vertical cylinder 133 and facilitate connection, a block 126-shaped or sheet-shaped connecting portion 131 can also be connected to the top of the vertical cylinder 133, and the connecting portion 131 is further connected to the first adjustment block 124 or the second adjustment block 125. The above connection method can be welded, screwed or the connected parts can be integrally formed; the first elastic member 135 is fixed to the vertical cylinder 1 33, the first elastic member 135 adopts a spring, and other devices providing elastic force can also be used. The top end of the spring is stuck in the top wall of the vertical tube 133, and a card-embedded connection form can be adopted, such as the top end of the spring is embedded in the top wall of the vertical tube 133, one end of the inner rod 134 is connected to the first elastic member 135, such as the top end of the inner rod 134 is embedded in the bottom end of the spring, and the other end of the inner rod 134 is connected to the locking part 132, such as the bottom end of the inner rod 134 is directly connected to the top end of the locking part 132, and is fixed by welding, so that the locking part 132 can adjust the distance relative to the transmission body 121, and the locking part 132 can be exposed outside the mounting hole 201 by pulling the locking part 132, so as to facilitate the surface of the second external workpiece 220 to be clamped.

[0050] In an optional embodiment, the connecting portion 131 further includes a vertical rod 136, a pressure plate 137 and a second elastic member 138. The inner rod 134 is recessed with an inner cavity 134b. The inner cavity 134b is provided with a circular hole at one end of the inner rod 134 facing the locking portion 132, so that the vertical rod 136 can be extended. The pressure plate 137 and the second elastic member 138 are placed in the inner cavity 134b. The second elastic member 138 is a spring, and other elastic devices can also be used. The second elastic member 138 is sleeved on the outside of the vertical rod 136. The size of the second elastic member 138 is larger than the circular hole. One end of the second elastic member 138 is connected to the pressure plate 137, and the other end is connected to the inner wall of the inner rod 134. In this way, the second elastic member 138 is always limited to the inner cavity 134b. One end of the vertical rod 136 is connected to the pressure plate 137. The vertical rod 136 and the pressure plate 137 can be used. Threaded connection or integral molding, the other end of the vertical rod 136 passes through the inner rod 134 through the circular hole and is connected to the locking part 132, and the vertical rod 136 is threadedly connected to the locking part 132, such as a threaded hole is provided at the top of the locking part 132, and a matching external thread is provided at the bottom end of the vertical rod 136; through the above arrangement, the locking part 132 has a secondary adjustment function, and the distance between the locking part 132 and the transmission body 121 can be adjusted by the first elastic member 135, and the distance between the locking part 132 and the transmission body 121 can be adjusted by the second elastic member 138, and the first elastic member 135 and the second elastic member 138 can provide a greater elastic force, so that the locking part 132 and the transmission body 121 can clamp the first external workpiece 210 and the second external workpiece 220 more tightly, and the temporary connection is more stable.

[0051] Please refer to Figure 6In an optional embodiment, a lateral adjustment member 140 is further included. An adjustment port is provided on the side wall of the vertical tube 133. One end of the lateral adjustment member 140 is inserted into the vertical tube 133 through the adjustment port, and the other end of the lateral adjustment member 140 is exposed outside the vertical tube 133. The middle part of the lateral adjustment member 140 matches the size of the adjustment port, so that the lateral adjustment member 140 can move laterally along the vertical tube 133 to adjust the length of the lateral adjustment member 140 inside the vertical tube 133. A convex edge can be provided at the outer periphery of the adjustment member 110 inside the vertical tube 133, so that the adjustment member 110 is limited to the vertical tube 133 to prevent the adjustment member 110 from detaching. A guide slope 134a is provided on the side of the inner rod 134. The guide slope 134a is the outer side of the inner rod 134. The guide bevel 134a is formed by being concave inwardly, and is plane. The bevel at the guide bevel 134a is inclined toward the locking portion 132, that is, the guide bevel 134a is inclined downward in the figure, and the guide bevel 134a is located in the vertical cylinder 133, that is, the guide bevel 134a is arranged at the position of the inner rod 134 located in the vertical cylinder 133, and the lateral adjustment member 140 is movably connected to the vertical cylinder 133, so that the lateral adjustment member 140 can act laterally on the guide bevel 134a. When the lateral adjustment member 140 is pushed inwardly, a lateral force can be applied to the guide bevel 134a, driving the inner rod 134 to move upward, and the locking portion 132 gradually approaches the lateral adjustment member 140, thereby adjusting the distance between the locking portion 132 and the transmission body 121.

[0052] In an optional embodiment, a plurality of lateral adjustment members 140 may be provided, and the plurality of lateral adjustment members 140 may be arranged in a ring at intervals on the outer circumference of the vertical cylinder 133. The lateral adjustment member 140 includes a side column 141, a mounting plate 142 and an oblique push block 143. The oblique push block 143, the mounting plate 142 and the side column 141 may adopt an integrally formed structure. The side column 141 is a cylinder, and is arranged horizontally as shown in the figure. One end of the side column 141 passes through the adjustment port of the vertical cylinder 133 and protrudes from the vertical cylinder 133. The mounting plate 142 is connected to the other end of the side column 141 and limits the side column 141. The size of the mounting plate 142 is larger than the outer diameter of the side column 141 and the adjustment port. The size is such that the mounting plate 142 can always be located in the vertical cylinder 133, so that the side column 141 cannot be separated from the vertical cylinder 133, and the oblique push block 143 is connected to the mounting plate 142. The oblique push block 143 adopts a block structure, a rod structure or a plate structure. The oblique push block 143 is located in the vertical cylinder 133, and is located corresponding to the guide inclined surface 134a. The oblique push block 143 is used to act laterally with the guide inclined surface 134a. When the side column 141 is pressed on the outside of the vertical cylinder 133 or the vertical cylinder 133 is constrained by the inner wall of the mounting hole 201, the oblique push block 143 can act with the guide inclined surface 134a to make the locking portion 132 approach the direction of the transmission body 121.

[0053] Please refer to Figure 7 and Figure 8In a second aspect of the present application, a method for assembling a workpiece of a connection device is provided, which uses the above-mentioned connection device 100 to connect the connection device 100 with a first external workpiece 210 and a second external workpiece 220 to form a temporary fixation, and then welds, grinds or performs other processes on the first external workpiece 210 and the second external workpiece 220. After the end, the direction operation of the method is used to quickly disassemble the connection device 100 from the first external workpiece 210 and the second external workpiece 220. The workpiece assembly method includes:

[0054] S1. The first external workpiece 210 and the second external workpiece 220 are stacked in an up-and-down manner. The second external workpiece 220 is first placed on two gaskets so that there is a gap between the middle and lower part of the second external workpiece 220 and the ground, so as to facilitate subsequent connection with the connecting device 100. The first external workpiece 210 is then laid on the second external workpiece 220, and the relative positions of the first external workpiece 210 and the second external workpiece 220 are adjusted so that the mounting hole 201 of the first external workpiece 210 is aligned with the mounting hole 201 of the second external workpiece 220, so that two mounting holes 201 are reserved for subsequent connection. In other embodiments, the first external workpiece 210 and the second external workpiece 220 can also be placed vertically against each other so that the first external workpiece 210 and the second external workpiece 220 are stacked left and right, and it is also necessary to ensure that the mounting holes 201 are aligned.

[0055] S2, start the driving component. If the driving component is electric, directly turn on the power button of the driving component, such as the output end directly drives the locking part 132 to move closer to or away from each other; if the driving component is manual, operate by holding the driving end of the driving component, such as the output end works and transmits with the transmission rod 122, drives the transmission rod 122 to rotate, and then drives the first adjustment block 124 and the second adjustment block 125 to move relative to each other, so that the two output ends are separated from or close to each other, until the distance between the two output ends reaches the distance between the two mounting holes 201 on the first external workpiece 210 and the second external workpiece 220, that is, the distance between the two locking parts 132 is equivalent to the distance between the two mounting holes 201, and the middle of the locking part 132 is aligned with the middle of the mounting hole 201, stop the driving component, cut off the power, or stop the hand-held operation.

[0056] S3, act laterally on the lateral adjustment member 140, so that the lateral adjustment member 140 is pressed against the guide inclined surface 134a, and the lateral adjustment member 140 is pressed into the vertical cylinder 133. The lateral adjustment member 140 slightly applies force to the guide inclined surface 134a, so that the lateral adjustment member 140 can smoothly enter the installation hole 201. After the lateral adjustment member 140 enters the installation hole 201, the lateral adjustment member 140 returns to its position, so that the locking portion 132 is in contact with the transmission The spacing between the main body 121 is enlarged so that the locking portion 132 can extend out of the surface of the second external workpiece 220 as much as possible and be exposed in the mounting hole 201; then the two locking portions 132 are placed in the corresponding mounting holes 201 and pass through the mounting holes 201. The locking portions 132 first pass through the mounting hole 201 of the first external workpiece 210, and then pass through the mounting hole 201 of the second external workpiece 220, so that the locking portions 132 are exposed in the mounting hole 201 of the second external workpiece 220.

[0057] S4, after the locking portion 132 is completely exposed, the driving assembly is started again, and the start and stop are in the same manner as in the above step S2, the output end works and drives the locking member 130 to adjust the distance between the two locking portions 132, so that a part of the locking portion 132 overlaps with the periphery of the mounting hole 201, such as the edge of the locking portion 132 overlaps with the periphery of the bottom mounting hole 201 of the second external workpiece 220, the edge of the locking portion 132 can be stuck in the periphery of the mounting hole 201 of the second external workpiece 220, and the locking member 130 stops. Driving assembly; at this time, since the vertical cylinder 133 is as close to the inner wall of the mounting hole 201 as possible, and the lateral adjustment member 140 is constrained by the mounting hole 201, one end of the lateral adjustment member 140 acts on the guiding inclined surface 134a in the vertical cylinder 133. Under the action of the inclined surface, the locking portion 132 approaches the driving assembly or the transmission body 121, so that the locking portion 132 and the driving assembly jointly clamp the first external workpiece 210 and the second external workpiece 220, and the connection between the first external workpiece 210 and the second external workpiece 220 is completed.

[0058] The workpiece assembly method of the prior art uses bolts for connection, which all rely on manual tightening and unscrewing, which is cumbersome to operate and takes a long time to assemble and unassemble. In addition, bolted connection components are also prone to loosening due to shaking. However, the present application does not use bolts. Through the drive assembly, the two locking parts 132 can be matched with the mounting holes 201, and then the locking parts 132 are placed in the mounting holes 201. The spacing is adjusted, and the locking parts 132 are stuck on the adjacent side or the separated side of the two mounting holes 201. In this way, the locking parts 132 can be on one side of the first external workpiece 210 and the second external workpiece 220, and the drive assembly is on the other side, and the workpiece assembly is clamped at the same time. When disassembling, the position of the locking part 132 can be adjusted to remove it. The above-mentioned whole process is simple to operate and easy to use, and realizes rapid disassembly and assembly between the external mechanism.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", "optional example" or "optional implementation" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0060] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0061] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A connection device, characterized in that: A connecting device for connecting a first external workpiece (210) and a second external workpiece (220) having at least two mounting holes (201), the connecting device comprising: A drive assembly having two output ends moving in opposite directions; Two locking members (130), the locking members (130) comprising a connecting portion (131) and a locking portion (132), one end of the two connecting portions (131) being connected to the output ends in a one-to-one correspondence, and the other end of the two connecting portions (131) being connected to the locking portions (132) in a one-to-one correspondence; The size of the locking portion (132) is smaller than the mounting hole (201), so that the two locking portions (132) can pass through the corresponding mounting holes (201) and move relative to the first external workpiece (210) and the second external workpiece (220) under the drive of the output end, and move to a position where a part of the locking portion (132) overlaps with the periphery of the mounting hole (201), so that the locking portion (132) and the driving assembly can jointly clamp the first external workpiece (210) and the second external workpiece (220).

2. The connection device according to claim 1, characterized in that: The drive assembly comprises: An adjusting member (110) for transmitting a driving force; The transmission member (120) comprises a transmission body (121) and a transmission rod (122), and a first adjustment block (124) and a second adjustment block (125) as output ends, wherein both ends of the transmission rod (122) are connected to the transmission body (121), the transmission rod (122) is in transmission connection with the adjustment member (110), the first adjustment block (124) and the second adjustment block (125) are respectively in transmission connection with the transmission rod (122), and driven by the adjustment member (110), the first adjustment block (124) and the second adjustment block (125) move synchronously towards or in the opposite direction relative to the transmission rod (122).

3. The connection device according to claim 2, characterized in that: The transmission rod (122) is provided with symmetrically arranged threaded sections, and the two threaded sections are respectively threadably matched with the first adjustment block (124) and the second adjustment block (125).

4. The connection device according to claim 2, characterized in that: The transmission member (120) is provided with a driven wheel (123) connected to the transmission rod (122), and the driven wheel (123) is in transmission connection with the adjustment member (110).

5. The connection device according to claim 4, characterized in that: The adjusting member (110) comprises an adjusting column (111) and a driving wheel (112); the driving wheel (112) is connected to the adjusting column (111); and the driving wheel (112) is meshed with the driven wheel (123).

6. The connecting device according to any one of claims 1 to 5, characterized in that: The connecting portion (131) comprises a vertical tube (133), an inner rod (134) and a first elastic member (135); the vertical tube (133) is connected to the output end; the first elastic member (135) is fixed in the vertical tube (133); one end of the inner rod (134) is connected to the first elastic member (135); and the other end of the inner rod (134) is connected to the locking portion (132).

7. The connection device according to claim 6, characterized in that: The connecting portion (131) further comprises a vertical rod (136), a pressure plate (137) and a second elastic member (138); the inner rod (134) is provided with an inner cavity (134b); the pressure plate (137) and the second elastic member (138) are arranged in the inner cavity (134b); one end of the vertical rod (136) is connected to the pressure plate (137); the other end of the vertical rod (136) passes through the inner rod (134) and is connected to the locking portion (132); one end of the second elastic member (138) is connected to the pressure plate (137) and the other end is connected to the inner wall of the inner rod (134).

8. The connection device according to claim 6, characterized in that: It also includes a lateral adjustment member (140), a side surface of the inner rod (134) is provided with a guide slope (134a), the slope of the guide slope (134a) is inclined toward the locking portion (132), the guide slope (134a) is located in the vertical tube (133), and the lateral adjustment member (140) is movably connected to the vertical tube (133).

9. The connection device according to claim 8, characterized in that: The lateral adjustment member (140) comprises a side column (141), a mounting plate (142) and an inclined push block (143); one end of the side column (141) passes through and protrudes from the vertical tube (133); the mounting plate (142) is connected to the other end of the side column (141) and limits the side column (141); the inclined push block (143) is connected to the mounting plate (142); and the inclined push block (143) is used to act laterally with the guide inclined surface (134a).

10. A workpiece assembly method for a connecting device, characterized in that: Using the connecting device according to claim 8 or 9, the workpiece assembly method comprises: The first external workpiece (210) and the second external workpiece (220) are stacked, and the relative positions of the first external workpiece (210) and the second external workpiece (220) are adjusted so that the mounting hole (201) of the first external workpiece (210) and the mounting hole (201) of the second external workpiece (220) are aligned; Starting the driving component to separate or approach the two output ends from each other until the distance between the two output ends reaches the distance between the two mounting holes (201) on the first external workpiece (210) and the second external workpiece (220), and stopping the driving component; Acting laterally on the lateral adjustment member (140) so that the lateral adjustment member (140) is pressed against the guide inclined surface (134a); then placing the two locking portions (132) into the corresponding mounting holes (201) and passing through them so that the locking portions (132) are exposed; After the locking portion (132) is completely exposed, the driving assembly is started again to adjust the distance between the two locking portions (132) so that a part of the locking portion (132) overlaps with the periphery of the mounting hole (201), and the driving assembly is stopped; at the same time, the lateral adjustment member (140) is constrained by the mounting hole (201) and acts on the guiding inclined surface (134a), so that the locking portion (132) and the driving assembly jointly clamp the first external workpiece (210) and the second external workpiece (220); the connection between the first external workpiece (210) and the second external workpiece (220) is completed.

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