Multi-station clamping device based on variable pitch

Abstract

The utility model discloses a multi-station clamping device based on variable pitch. The multi-station clamping device comprises an objective table, a pressing unlocking mechanism and a clamping variable pitch mechanism. Due to the fact that the clamping pitch-changing mechanism is composed of the independent clamping pitch-changing assemblies, according to the sizes of the different modules, the different sizes of modules can be clamped at the same time, and then pitch changing of the distances between the different sizes of modules can be adjusted. The device is simple in structure, high in compatibility and wide in application range.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a variable-distance multi-station clamping device. Background Art

[0002] During the assembly process of new energy vehicle battery packs, it is often necessary to clamp the battery cell modules or battery cell tray carriers containing battery cells, and then transfer them to the assembly line processing position for subsequent processing and assembly steps.

[0003] Since different battery cell modules or battery tray carriers with battery cells usually have different sizes, and in the prior art, the size of a clamp module of a robot arm usually only corresponds to the size of a certain battery cell module or battery tray carrier, the adaptability range of the clamp module is relatively single; the sizes of battery cell modules or battery tray carriers of different sizes require adjusting the size of the clamp module of the robot arm to meet the clamping of different battery cell modules or battery tray carriers, which makes the working structure of the clamp module of the robot arm complex, difficult to assemble and difficult to maintain. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a variable-distance multi-station clamping device with simple structure, strong compatibility and wide application range.

[0005] The technical solution of the utility model is:

[0006] A variable-distance multi-station clamping device, characterized in that it includes:

[0007] The carrier stage comprises a base and a guide rod, wherein the base is provided with an upper stage and a lower stage parallel to each other in the axial direction, and the guide rod is provided on both sides of the upper stage along the length direction of the upper stage;

[0008] The clamping and unlocking mechanism comprises a driving motor arranged along the axial direction of the carrier platform and a driving bracket arranged at the top of the driving end of the driving motor; the driving motor is fixed on the lower stage and the two sides of the driving bracket along the length direction of the stage are respectively located on the two sides of the upper stage and below the guide rod;

[0009] The clamping and pitch-changing mechanism comprises a plurality of sets of clamping and pitch-changing components slidably mounted in parallel on the guide rod, and the clamping and pitch-changing components are independent of each other; each clamping and pitch-changing component comprises a clamping part and a pitch-changing part, and each clamping part and the pitch-changing part are movably connected, and the upper end of each pitch-changing part is slidably mounted on the guide rod, and the lower end of each pitch-changing part is slidably mounted on the driving bracket.

[0010] Furthermore, each of the clamping parts includes two module positioning brackets and a module positioning plate fixedly connected to the top surfaces of the two module positioning brackets; each module positioning bracket is provided with a through-hole-shaped bracket rail, the module positioning plate is perpendicular to the length direction of the upper stage and is placed on the upper stage, and the two module positioning brackets are respectively located between the upper stage and the driving bracket; a module limiting plate is provided at one end of the upper surface of the module positioning plate, and a pushing component with the driving direction toward the limiting plate is fixedly connected to the other end of the upper surface of the module positioning plate; the two module positioning brackets are movably connected to the variable distance part.

[0011] Furthermore, the pushing assembly includes a pushing cylinder arranged with the driving direction facing the module limiting plate and a clamping pushing block fixed to the top end of the driving end of the pushing cylinder.

[0012] Furthermore, a module side baffle is provided on one side of the module positioning plate along the length direction.

[0013] Furthermore, a variable pitch portion is provided next to the other side edge of the module positioning plate relative to the module side baffle, and the variable pitch portion includes a clamping rod arranged parallel to the length direction of the module positioning plate, and a clamping rod support frame is provided downwardly at each end of the clamping rod, and a clamping rod through hole is provided at the lower end of each clamping rod support frame, and each guide rod on the side of the upper loading platform passes through each clamping rod through hole so that each clamping rod is placed above the upper loading platform; the bottom end of each clamping rod support frame is movably connected to one end of a swing rod, and the other end of each swing rod is fixedly connected to a sliding connection component, and the other end of the sliding connection component is slidably connected to the bracket track of its corresponding module positioning bracket, and the end of the sliding connection component is slidably connected to the driving bracket.

[0014] Furthermore, each of the sliding connection components includes: a driving wheel, a driven wheel and a connecting rod; one end of each connecting rod is connected to the driving wheel, and the other end is connected to the driven wheel after passing through the bottom end of the swing rod, and each driving wheel is slidably connected to its corresponding driving bracket, and the driven wheel is slidably connected to its corresponding bracket track.

[0015] Furthermore, an elastic member is connected to the bottom surface of one end of each swing rod fixed to the sliding connection assembly, and the other end of each elastic member is connected to the bottom end of its corresponding module positioning bracket.

[0016] Furthermore, a plurality of clamping and variable distance mechanism positioning blocks are arranged at intervals on the upper loading platform.

[0017] The beneficial technical effect of the utility model is as follows: the utility model provides a variable-distance multi-station clamping device, including a loading platform, a clamping and unlocking mechanism, and a clamping and variable-distance mechanism. Since the clamping and variable-distance mechanism is composed of independent clamping and variable-distance components, it can adjust the variable distance between modules of different sizes after clamping modules of different sizes at the same time according to the sizes of modules of different sizes. The utility model has a simple structure, strong compatibility, and a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of the utility model (including the case of two pressing and unlocking mechanisms);

[0019] Figure 2 It is a schematic diagram of the loading platform in the utility model;

[0020] Figure 3 It is a schematic diagram of the compression and unlocking mechanism in the utility model;

[0021] Figure 4 This is a schematic diagram of a clamping module of a clamping variable pitch component in the utility model;

[0022] Figure 5 This is a schematic diagram of the clamping and pitch-changing component removal module in the utility model;

[0023] Figure 6 This is a schematic diagram of the clamping and variable pitch assembly in the utility model from another angle;

[0024] Figure 7 It is a schematic diagram of a sliding connection component in the utility model. DETAILED DESCRIPTION

[0025] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0026] like Figure 1-Figure 7 As shown, the utility model provides a variable-distance multi-station clamping device, which includes a carrier platform, on which a clamping and unlocking mechanism and a clamping and variable-distance mechanism are provided, wherein the clamping and variable-distance mechanism includes a plurality of clamping and variable-distance components.

[0027] like Figure 2As shown, the carrier platform includes a base and a guide rod 103. The base is provided with a lower stage 102 in the horizontal direction. A plurality of upper stage columns are provided on the upper surface of the lower stage 102 in parallel with each other. The top surfaces of all upper stage columns are connected to an upper stage 101 parallel to the lower stage 102. A guide rod column 105 is symmetrically provided at intervals on each of the four ends of the upper surface of the lower stage 102. A guide rod 103 is connected between two guide rod columns along the length direction of the upper stage 101, and each guide rod 103 is placed parallel to the side of the upper stage 101.

[0028] In addition, a plurality of clamping and pitch-changing mechanism positioning blocks 104 are disposed at intervals on the upper stage 101 to position each clamping and pitch-changing assembly.

[0029] like Figure 3 As shown, the pressing and unlocking mechanism includes a driving motor 201 whose driving direction is arranged along the axial direction of the carrier platform and a driving bracket 202 arranged at the top of the driving end of the driving motor 201. The driving motor 201 is fixed below the lower stage 102, and the driving end of the driving motor 201 passes through the lower stage 102. The top of the driving end of the driving motor 201 faces the direction of the upper stage and is fixed with a driving bracket 202. The driving motor 201 can drive the driving bracket 202 to rise and fall along the axial direction of the carrier platform.

[0030] The driving bracket 202 includes two driving bracket fixing parts 2021 and a driving bracket lifting part 2022. In the utility model, the two driving bracket fixing parts 2021 are respectively fixed on the two sides of the lower stage 102 along the length direction, and the driving bracket lifting part 2022 is slidably connected between the two driving bracket fixing parts 2021. The driving bracket lifting part 2022 includes an open rectangular frame with an opening and the opening faces the upper stage, and the columns on each side of the open rectangular frame are slidably connected to the corresponding driving bracket fixing part 2021, and the top surface of the columns on each side of the open rectangular frame is jointly fixed with a clamping unlocking rod 203 along the length direction of the lower stage, and each clamping unlocking rod 203 is provided with a groove on the side facing the upper stage and is placed below the corresponding side of the upper stage. The width between the two clamping unlocking rods 203 is greater than the width of the upper stage 101 and the width between the two guide rods 103, and the position is adapted to realize the sliding connection of each clamping variable pitch component. When the driving motor 201 is running, the driving bracket 202 is lifted and lowered toward the upper stage, and because the driving bracket is slidably connected to the driving bracket fixing portion 2021, the driving bracket is more stable during the lifting process.

[0031] The clamping and pitch-changing mechanism comprises a plurality of sets of clamping and pitch-changing components which are slidably mounted in parallel on the guide rod 103, and the clamping and pitch-changing components are independent of each other; each clamping and pitch-changing component comprises a clamping part and a pitch-changing part.

[0032] Each clamping part includes two module positioning brackets 3011 and a module positioning plate 3012 fixedly connected to the top surface of the module positioning brackets. The module positioning plate 3012 is perpendicular to the length direction of the upper stage and is fixedly placed on the clamping variable pitch mechanism positioning block 104; the two module positioning brackets are respectively located between the upper stage 101 and the driving bracket 202. A module limiting plate 302 is provided at one end of the upper surface of the module positioning plate 3012, and a pushing component with a driving direction toward the limiting plate 302 is fixedly connected to the other end of the upper surface of the module positioning plate 3012. The module 6 is placed on the module positioning plate 3012 and is located between the module limiting plate 302 and the pushing component, wherein the sizes of the modules 6 may be the same or different.

[0033] Each push assembly includes a push cylinder 303 arranged with the driving direction facing the module limit plate 302 and a clamp push block 304 fixed to the top of the driving end of the push cylinder 303. When the mold 6 is placed on the module positioning plate 3012, the push cylinder 303 is started, and the driving end of the push cylinder 303 drives the clamp push block 304 to move synchronously toward the module limit plate 302. When the clamp push block 304 contacts the outer surface of one side of the module 6, it continues to push the module 6 toward the module limit plate 302 until the module 6 contacts the module limit plate 302, and the module 6 is clamped at this time.

[0034] In addition, each module positioning plate 3012 is provided with a module side baffle 305 on one side along the length direction to prevent the module 6 from falling from the side. The lower ends of the two module positioning brackets 3011 connected to each module positioning plate 3012 are provided with through-hole bracket rails 306 for subsequent continuous sliding connection components.

[0035] Each module positioning plate 3012 is provided with a variable pitch portion next to the other side of the module side baffle 305. Each variable pitch portion includes a clamping rod 401 parallel to the length direction of the module side baffle 305, and a clamping rod support frame 402 is provided downward at each end of the clamping rod 401, and each clamping support rod 402 is provided with a clamping rod through hole at each lower end, and the position of the clamping rod through hole is at the same height as the module positioning plate 3012, and the guide rod 103 on the side of each upper stage 101 passes through each clamping rod through hole, so that each clamping rod 401 is placed above the upper stage 101, and at this time, the top surface of the clamping rod 401 is at the same height as the top surface of the module side baffle 305, so as to ensure that the subsequent clamping rod 401 moves toward the module side baffle 305, and clamps each module 6 from the side, thereby adjusting the spacing between each module 6, thereby completing the variable pitch action.

[0036] In addition, a through-hole sleeve 4011 can be sleeved in each of the above-mentioned clamping rod through holes, so that after the guide rod 103 on the side of each upper stage 101 passes through the through-hole sleeve 4011 of each clamping rod through hole, the sliding resistance along the guide rod 103 after the clamping rod 401 is subjected to force is reduced.

[0037] The bottom end of each clamping rod support frame 402 is rotatably connected to one end of a swing rod 403, and the other end of each swing rod 403 is fixedly connected to a sliding connection component, and the other end of the sliding connection component is slidably connected to the bracket track at the lower end of its corresponding module positioning bracket 3011. At this time, the swing rod 403 is in a slanted downward state between the clamping rod support frame 402 and the module positioning bracket 3011, and the lowest point of the slope is located on the module positioning bracket 3011.

[0038] At this point, the clamping portion and the variable distance portion are movably connected.

[0039] The sliding connection assembly includes a driving wheel 501, a driven wheel 502 and a connecting rod 503. One end of each connecting rod 503 is connected to the driving wheel 501, and the other end is passed through the bottom end of the swing rod 403 and then connected to the driven wheel 502. Each driving wheel 501 is slidably connected to the groove of the pressing and unlocking rod 203 on its corresponding driving bracket 202, and the driving wheel 501 can slide along the length direction of the groove of the pressing and unlocking rod 203 under force; the driven wheel 502 is slidably connected to the bracket track 306 at the lower end of the corresponding module positioning bracket 3011.

[0040] Among them, the middle part of the peripheral surface in the through hole of the bracket track 306 protrudes toward its central axis to form an annular boss; the driven wheel 502 includes two pulleys, and the two pulleys are spaced and sleeved on the same end of the connecting rod 503, and the distance between the two pulleys can just clamp the annular boss in the through hole of the bracket track 306, thereby forming a sliding track for the driven wheel 502.

[0041] In summary, each clamping and pitch-changing assembly is connected to the guide rod and the driving bracket in the above manner, and each clamping and pitch-changing assembly is oriented in the same direction, thereby forming the clamping and pitch-changing mechanism of the present utility model.

[0042] The operating principle and operation process of the utility model are as follows:

[0043] S1, after placing each module 6 on the corresponding module positioning plate 3012, start each pushing cylinder 303, and each clamping pushing block 304 moves synchronously toward its corresponding module limiting plate 302. When the clamping pushing block 304 hits the outer surface of one side of the module 6, it continues to push the module 6 toward the module limiting plate 302 until the module 6 hits the module limiting plate 302. At this time, each module 6 is clamped.

[0044] S2, start the driving motor 201, so that the driving end of the driving motor 201 drives the driving bracket 202 and the clamping and unlocking rod 203 on the driving bracket to descend synchronously, and each driving wheel 501 in the groove of the two clamping and unlocking rods 203 descends synchronously with the clamping and unlocking rods 203. At this time, each driving wheel 501 drives each driven wheel 502 to descend along the bracket track 306, thereby driving each swing rod 403 to move obliquely downward, and then each clamping rod support frame 402 drives its corresponding clamping rod 401 to slide along the guide rod 103 toward the module positioning plate 3012. When the clamping rod 401 is tightly against the outer surface of the corresponding module 6, the distance between each module 6 on the stage along the length direction of the stage is changed.

[0045] S3, when it is necessary to take out the above module 6, start the driving motor 201, so that the driving end of the driving motor 201 drives the driving bracket 202 and the clamping and unlocking rod 203 on the driving bracket to rise synchronously, and each driving wheel 501 in the groove of the two clamping and unlocking rods 203 rises synchronously with the clamping and unlocking rods 203. At this time, each driving wheel 501 drives each driven wheel 502 to rise along the bracket track 306, thereby driving each swing rod 403 to move obliquely upward, and then each clamping rod support frame 402 drives its corresponding clamping rod 401 to slide along the guide rod 103 away from the module positioning plate 3012, so that the clamping rod 401 leaves the outer surface of the module 6, and realizes the variable pitch unlocking of the module 6. Then, start the push cylinder 303, so that the clamping push block 304 moves synchronously in the direction away from the corresponding module limit plate 302, so that the clamping push block 304 leaves the side surface of the module 6, and realizes the clamping and unlocking of each module 6.

[0046] In addition, an elastic member 404 is connected to the bottom end of one end of each swing rod 403 connected to the driving wheel 501, and the other end of each elastic member 404 is connected to the bottom end of its corresponding module positioning bracket 3011. The elastic member 404 is used to buffer the rising and falling processes of the slider connecting assembly and the swing rod 403, making it more stable during operation.

[0047] The above-mentioned clamping and pitch-changing mechanism is controlled by a clamping and unlocking mechanism to control the pitch-changing action of the modules on each clamping and pitch-changing component. When the length of the loading platform is lengthened or the number of clamping and pitch-changing components on the loading platform is increased, a clamping and unlocking mechanism can be added accordingly to improve work efficiency. At this time, the operating principle and process are the same as above.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as within the protection scope of the present invention.

Claims

1. A variable-distance multi-station clamping device, Features: include: The carrier platform comprises a base and a guide rod (103); the base is provided with an upper loading platform (101) and a lower loading platform (102) parallel to each other in an axial direction; the guide rod (103) is provided on both sides of the upper loading platform (101) along the length direction of the upper loading platform; The clamping and unlocking mechanism comprises a driving motor (201) arranged along the axial direction of the carrier platform and a driving bracket (202) arranged at the top of the driving end of the driving motor (201); the driving motor (201) is fixed on the lower stage (102) and the two side edges of the driving bracket (202) along the length direction of the stage are respectively located on the two sides of the upper stage (101) and below the guide rod (103); The clamping and pitch-changing mechanism comprises a plurality of sets of clamping and pitch-changing components which are slidably mounted in parallel on a guide rod (103), and the clamping and pitch-changing components are independent of each other; each clamping and pitch-changing component comprises a clamping part and a pitch-changing part, and each clamping part and pitch-changing part are movably connected, and the upper end of each pitch-changing part is slidably mounted on the guide rod (103), and the lower end of each pitch-changing part is slidably mounted on a driving bracket (202).

2. The variable-distance multi-station clamping device according to claim 1, Features: Each of the clamping parts comprises two module positioning brackets (3011) and a module positioning plate (3012) fixedly connected to the top surfaces of the two module positioning brackets; each module positioning bracket (3011) is provided with a through-hole-shaped bracket track (306); the module positioning plate (3012) is perpendicular to the length direction of the upper stage and is placed on the upper stage (101); the two module positioning brackets are respectively located between the upper stage (101) and the driving bracket (202); a module limiting plate (302) is provided at one end of the upper surface of the module positioning plate (3012); the other end of the upper surface of the module positioning plate (3012) is fixedly connected to a pushing component with the driving direction facing the limiting plate (302); and the two module positioning brackets (3011) are movably connected to a variable pitch part.

3. The variable-distance multi-station clamping device according to claim 2, Features: The pushing component comprises a pushing cylinder (303) arranged with its driving direction facing the module limiting plate (302) and a clamping pushing block (304) fixed to the top end of the driving end of the pushing cylinder (303).

4. The variable-distance multi-station clamping device according to claim 2, Features: A module side baffle (305) is provided on one side of the module positioning plate (3012) along the length direction.

5. The variable-distance multi-station clamping device according to claim 4, Features: A variable pitch portion is provided beside the other side of the module positioning plate (3012) relative to the module side baffle (305), and the variable pitch portion includes a clamping rod (401) arranged parallel to the length direction of the module positioning plate (3012), and a clamping rod support frame (402) is provided downward at each end of the clamping rod (401), and a clamping rod through hole is provided at the lower end of each clamping rod support frame (402), and each guide rod (103) on the side of the upper loading platform (101) passes through the guide rod (103) Each clamping rod has a through hole so that each clamping rod (401) can be placed above the upper loading platform (101); the bottom end of each clamping rod support frame (402) is movably connected to one end of a swing rod (403), and the other end of each swing rod (403) is fixedly connected to a sliding connection component, and the other end of the sliding connection component is slidably connected to the bracket track (306) of its corresponding module positioning bracket (3011), and the end of the sliding connection component is slidably connected to the driving bracket (202).

6. The variable-distance multi-station clamping device according to claim 5, Features: Each of the sliding connection components comprises: a driving wheel (501), a driven wheel (502) and a connecting rod (503); one end of each connecting rod (503) is connected to the driving wheel (501), and the other end passes through the bottom end of the swing rod (403) and is connected to the driven wheel (502); each driving wheel is slidably connected to its corresponding driving bracket (202), and the driven wheel (502) is slidably connected to its corresponding bracket track (306).

7. The variable-distance multi-station clamping device according to claim 5, Features: The bottom end surface of one end of each swing rod (403) fixed to the sliding connection assembly is connected to an elastic member (404), and the other end of each elastic member (404) is connected to the bottom end of its corresponding module positioning bracket (3011).

8. The variable-distance multi-station clamping device according to claim 1, Features: A plurality of clamping and variable distance mechanism positioning blocks (104) are arranged at intervals on the upper loading platform (101).

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