High-precision integrated positioning tool and using method thereof

Abstract

The invention discloses a high-precision integrated positioning tool and a using method thereof, and belongs to the technical field of machining positioning equipment.The high-precision integrated positioning tool comprises a tool base body, and a plurality of guide mechanisms arranged in parallel are arranged on the tool base body; the at least two linkage pieces are connected to the upper surface of the guide mechanism and are in sliding fit with the guide mechanism, a containing cavity is formed in one side of each linkage piece, a boss is further arranged in the middle of each linkage piece, and a penetrating type connecting hole is formed in each boss; and the at least two positioning and clamping assemblies are arranged in one-to-one correspondence with the linkage pieces, each positioning and clamping assembly comprises a positioning piece, a movable clamping piece and a first elastic piece, the positioning pieces are arranged on the upper surface of the tool base body, and the movable clamping pieces and the first elastic pieces are embedded in the containing cavity. Due to the fact that the positioning and clamping assembly can avoid accumulative errors and adapt to workpieces of different sizes, the positioning precision is improved, meanwhile, the structure is simplified through the integrated design, the assembling procedures are reduced, and therefore the machining efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of machining positioning equipment technology, specifically to a high-precision integrated positioning fixture and its usage method. Background Technology

[0002] In the field of machining, the positioning accuracy of a workpiece directly determines the final product's processing quality. This is especially true for the batch processing of square workpieces, where the stability and compatibility of the positioning fixture are crucial. In existing technologies, the positioning of square workpieces typically employs a double-fixed V-block structure, where both sides of the workpiece are clamped and positioned by V-blocks. However, this structure suffers from drawbacks such as large cumulative errors and susceptibility to workpiece damage.

[0003] Patent document discloses a high-precision universal adjustable V-shaped positioning fixture (application number CN201711428880.2). This technical solution discloses a base on one of two V-shaped support assemblies, comprising left and right adjustable shim assemblies. The base has relatively separate left and right slider assemblies, each with a slip ring forming a helical pair with an adjusting screw. The adjusting screws under the left and right slider assemblies have threads with opposite directions of rotation, and their adjacent ends are fixedly connected by a clamp coupling assembly. The adjustable shim assembly includes a lower base, whose adjusting bolt forms a helical pair with a middle slider. The upper surface of the middle slider is in contact with the lower surface of the upper pressure block, and the upper pressure block forms a vertical sliding pair with the base. The adjusting bolts of the left and right adjustable shim assemblies have end-face meshing structures at their opposite ends, achieving a constrained coupling through meshing with corresponding structures at both ends of the coupling assembly. This fixture is suitable for various specifications of stepped shaft parts, offering good versatility, convenient operation, and high precision.

[0004] However, the aforementioned tooling has significant drawbacks. First, dimensional deviations arising from the machining and installation of its positioning components cannot be compensated for, easily leading to cumulative and amplified errors that severely affect positioning accuracy. Second, the structure cannot automatically adapt to workpieces of different sizes, requiring frequent tooling adjustments during batch processing, significantly reducing processing efficiency. Furthermore, the non-adjustable clamping force results in poor adaptability when switching between large and small workpieces. In particular, excessive clamping force can easily cause edge chipping and surface scratches when clamping large workpieces, while insufficient clamping force can lead to unstable clamping and workpiece deformation. In addition, its components are scattered, and the assembly process is cumbersome, increasing maintenance difficulty and cost, and reducing operational efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a high-precision integrated positioning fixture and its usage method to solve the problems of the aforementioned related technologies.

[0006] To achieve the above technical objectives, the technical solution adopted in this disclosure is as follows: A high-precision integrated positioning fixture includes: a fixture base on which multiple parallel guide mechanisms are arranged; at least two linkage bearing components connected to the upper surface of the guide mechanisms and slidingly engaged with the guide mechanisms, each linkage bearing component having a receiving cavity on one side and a boss in the middle with a through-hole; at least two positioning clamping components corresponding to the linkage bearing components, each positioning clamping component including a positioning element, a movable clamping element, and a first elastic element, the positioning element being disposed on the upper surface of the fixture base, the movable clamping element and the first elastic element being embedded in the receiving cavity; and a linkage clamping component including a drive connector, a first connector, and a second connector, one end of the drive connector being connected to an external drive mechanism and the other end being connected to the first connector, one end of the first connector being connected to one of the linkage bearing components, and both ends of the second connector being connected to the two linkage bearing components respectively.

[0007] The integrated design of the tooling base, linkage bearing assembly, positioning and clamping assembly, and linkage clamping assembly results in a compact structure. The guiding mechanism provides a stable sliding foundation for the linkage bearing assembly, and the receiving cavity allows for the embedded installation of the movable clamping component and the first elastic element, enhancing structural stability. The first elastic element, together with the movable clamping component and the positioning component, can adaptively compensate for accumulated errors during positioning and clamping, thus meeting the clamping requirements of workpieces of different sizes and preventing damage to the workpiece from excessively loose or tight clamping. The linkage clamping assembly, through the cooperation of the first and second connecting components, drives the linkage bearing assembly to move synchronously, enabling the coordinated operation of multiple sets of positioning and clamping assemblies to meet the needs of large-scale integrated processing. Simultaneously, the boss strengthens the structural strength of the linkage bearing assembly, and the connecting holes provide installation positions for subsequent component expansion or fixation.

[0008] Optionally, the positioning clamping assembly further includes a connecting beam, and the positioning elements within the same positioning clamping assembly are connected as one unit through the connecting beam.

[0009] The connecting beam integrates multiple positioning components within the same positioning and clamping assembly into a stable whole, ensuring a unified reference for all positioning points and avoiding reference offset caused by the dispersed arrangement of positioning components. The integrated design enables synchronous clamping at multiple points, ensuring uniform force on the clamped workpiece and preventing workpiece deformation or clamping instability due to excessive localized force. Simultaneously, the integrated structure simplifies the installation and debugging process of the positioning components, reduces cumulative assembly errors, and adapts to large-scale processing scenarios.

[0010] Optionally, a whole-plate elastic component is connected to the outer wall of one of the linkage bearing components located away from the first connector.

[0011] The entire elastic assembly provides the reset power for the linkage bearing assembly, enabling automatic reset after tooling unlocking without the need for an additional drive mechanism, thus reducing energy consumption and equipment complexity. The elastic assembly can buffer the impact force during the clamping and locking process, preventing the linkage bearing assembly from colliding with other components, reducing wear, and extending the tooling's service life.

[0012] Optionally, the whole-plate elastic component includes a limiting block, a guide post, and a second elastic element. The limiting block has a hollow structure and is connected to the upper surface of the tooling base. The second elastic element is disposed at one end of the limiting block and is connected to the linkage bearing component. The guide post passes through the inner holes of the limiting block and the second elastic element and is connected to the linkage bearing component.

[0013] The limiting block provides a stable mounting and limiting base for the second elastic element, preventing it from shifting during expansion and contraction. The guide post passes through the limiting block and the second elastic element, preventing positional deviation of the linkage bearing assembly during movement, ensuring smooth movement of the linkage bearing assembly along a preset trajectory. The elastic potential energy of the second elastic element can be converted into the reset force of the linkage bearing assembly.

[0014] Optionally, the positioning member has a first contour fitting part on one side, and the movable clamping member has a second contour fitting part on one side. Both the first contour fitting part and the second contour fitting part are fully open structures and are arranged vertically along the height direction.

[0015] The fully open first and second contour fitting parts facilitate quick placement and removal of workpieces, while the through-type structure can be applied to workpieces of different heights, ensuring that the upper and lower surfaces are unobstructed during workpiece clamping, thus facilitating subsequent machining operations. The corresponding fit between the first and second contour fitting parts allows for a tight fit to the workpiece contour, improving clamping stability and consequently enhancing machining accuracy.

[0016] Optionally, the first contour adapter portion has a first V-shaped surface with a 90° angle opening, and the second contour adapter portion has a second V-shaped surface with a 90° angle opening, with the first V-shaped surface and the second V-shaped surface facing each other.

[0017] The 90° V-shaped surface has great advantages for square, rectangular and other workpieces. It can be positioned by two adjacent sides of the workpiece, and the V-shaped surfaces arranged in opposite directions form a symmetrical clamping structure, so that the workpiece is subjected to balanced force and avoids workpiece displacement or deformation caused by unilateral force.

[0018] Optionally, a cylindrical first rounded corner is provided at the right-angle connection of the first contour adapter portion, and a cylindrical second rounded corner is provided at the right-angle connection of the second contour adapter portion.

[0019] The first and second fillets effectively remove debris, dust, and other impurities generated during processing, preventing them from accumulating at the right angles of the V-shaped surface and affecting the fit between the workpiece and the clamping surface. This prevents increased gaps that could lead to positioning datum shifts and ensures processing accuracy. Simultaneously, it avoids stress concentration at the right angles of the V-shaped surface, strengthening the structural strength of the first and second contour fitting parts and extending their service life. Furthermore, it reduces contact interference between the V-shaped surface and the workpiece, preventing workpiece edges from colliding with the clamping surface and causing damage.

[0020] Optionally, the guiding mechanism comprises multiple linear slide rails, each including a guide rail and a slider. The guide rail has positioning holes and is mounted on the tooling base through these holes. Both ends of the linkage bearing assembly and the lower end of the boss are provided with connecting slots. Each connecting slot has multiple assembly holes, and each connecting slot is connected to a slider using fasteners through its own assembly holes, thereby driving the linkage bearing assembly to slide along the length of the guide rail. The number of sliders corresponds one-to-one with the number of connecting slots.

[0021] Linear guide rails, as guiding mechanisms, offer advantages such as low sliding resistance and high positioning accuracy. They allow the linkage load-bearing components to slide smoothly along the guide rails, reducing friction, wear, and jamming during their movement. The guide rails are mounted on the tooling base via positioning holes, ensuring consistent parallelism among multiple rails. The linkage load-bearing components are fixed to the slider via connecting grooves at both ends and the boss, forming a multi-point support structure that evenly distributes the load and improves the stability of the linkage load-bearing components during sliding. Assembly holes and fasteners ensure a secure connection between the linkage load-bearing components and the slider, facilitating disassembly and maintenance. Furthermore, the one-to-one correspondence between the slider and the connecting groove further enhances guiding accuracy.

[0022] Optionally, at least one extension seat is provided on both sides of the tooling base, and the extension seat has a through extension hole for installing extension components.

[0023] The expansion mount and through-hole expansion hole provide flexible expansion space, allowing for the installation of various expansion components according to specific work requirements.

[0024] A method for using a high-precision integrated positioning fixture mainly includes the following steps: Step 1, tooling reset preparation: Control the external drive mechanism to stop outputting power, the second elastic element of the whole plate elastic component releases the rebound force, pushes the linkage bearing component connected to it, and drives another linkage bearing component to slide synchronously to the initial position along the guide mechanism through the second connector. At this time, the movable clamping part of the positioning clamping component opens under the elastic reset force of the first elastic element, so that the first contour adaptation part and the second contour adaptation part form a clamping opening. Step 2: Workpiece positioning and placement. Place the workpiece to be positioned at the first contour fitting part of the positioning part, so that the edge of the workpiece is closely fitted with the first V-shaped surface to achieve preliminary positioning. Step 3: Clamping and locking. Activate the external drive mechanism. The drive connector drives the first connector, the linkage bearing assembly, and the second connector to slide towards the whole disc elastic assembly, thereby compressing the second elastic element of the whole disc elastic assembly to store rebound potential energy. Simultaneously, the linkage bearing assembly drives the movable clamping component in the receiving cavity to move towards the workpiece, compressing the first elastic element to accumulate elastic potential energy, until the second V-shaped surface of the second contour fitting part is tightly fitted with the other side of the workpiece, thus achieving workpiece clamping and locking. Step four: Unlock and place the workpiece, stop the power output of the external drive mechanism, release the rebound potential energy of the entire elastic component, drive the linkage bearing component, and move the movable clamping part away from the positioning part, thereby releasing the clamping constraint on the workpiece. After the workpiece is removed, one operation is completed.

[0025] The above-described method is simple and streamlined, enabling the tooling to complete operations from reset, loading, clamping, unlocking, to part removal. It is suitable for automated and large-scale processing needs and can effectively improve operational efficiency. Step one involves automatic reset via elastic elements, eliminating the need for additional drives, simplifying the operation process, and reducing energy consumption. Step two uses the first and second V-shaped surfaces to quickly and accurately position the workpiece, reducing positioning adjustment time. Step three uses the first and second elastic elements to accumulate potential energy, achieving stable clamping and locking, avoiding damage to the workpiece from rigid clamping, while ensuring clamping strength. Step four involves automatic unlocking via the rebound of the elastic elements. The entire method satisfies both operational efficiency and positioning accuracy, and can be widely applied to high-precision positioning and processing scenarios for various workpieces.

[0026] This invention compensates for machining and installation deviations of positioning components through a flexible and coordinated design, avoiding cumulative errors. It can adapt to workpieces of different sizes. The elastic structure allows for adjustable clamping force, preventing damage to large workpieces and loosening or deformation of small workpieces. Furthermore, the integrated design simplifies components and processes, reduces maintenance costs, and improves operational efficiency. Attached Figure Description

[0027] The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings; Figure 1 This is a three-dimensional structural diagram of the connection between the present invention and the hoist and support frame; Figure 2 This is a schematic diagram of the structure of the processing equipment equipped with an embodiment of the present invention; Figure 3 This is a schematic diagram of a high-precision integrated positioning tooling embodiment of the present invention; Figure 4 for Figure 3 A magnified schematic diagram of the partial structure at point A in the middle; Figure 5 for Figure 3 A magnified schematic diagram of the local structure at point B; Figure 6 for Figure 3 A magnified schematic diagram of the local structure at point C; Figure 7 This is a schematic diagram of the structure of the linkage bearing component in an embodiment of the present invention; Figure 8 This is a top view of the linkage bearing component in an embodiment of the present invention; Figure 9 This is a bottom view of the positioning component in an embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of the movable clamping member in an embodiment of the present invention; Figure 11 This is a schematic diagram of the positioning component in an embodiment of the present invention.

[0028] Figure label: 1. Tooling base; 2. Guiding mechanism; 21. Linear slide rail; 211. Guide rail; 212. Slider; 213. Positioning hole; 3. Linkage bearing component; 31. Receiving cavity; 32. Boss; 33. Connecting hole; 34. Connecting groove; 341. Assembly hole; 4. Positioning and clamping assembly; 41. Positioning component; 42. Movable clamping component; 43. First elastic component; 44. Connecting beam; 411, First contour fitting part; 421, Second contour fitting part; 411a, First V-shaped surface; 421a, Second V-shaped surface; 411b, First fillet; 421b, Second fillet; 5. Linkage clamping assembly; 51. Drive connector; 52. First connector; 53. Second connector; 6. Whole-plate elastic component; 61. Limiting block; 62. Guide post; 63. Second elastic element; 7. Expansion mount; 71. Expansion hole; 8. Hoist; 9. Support frame. Detailed Implementation

[0029] To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] The above provides a detailed description of a high-precision integrated positioning fixture and its usage method provided by the present invention. The specific embodiments described are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0031] like Figures 1 to 11 As shown, a high-precision integrated positioning fixture of the present invention includes: a fixture base 1, on which a plurality of parallel-arranged guide mechanisms 2 are provided; at least two linkage bearing components 3 are connected to the upper surface of the guide mechanisms 2 and slide in cooperation with the guide mechanisms 2, a receiving cavity 31 is provided on one side of the linkage bearing component 3, and a boss 32 is provided in the middle of the linkage bearing component 3, the boss 32 having a through connecting hole 33; at least two positioning clamping components 4 are provided corresponding to the linkage bearing components 3 one by one, the positioning clamping components 4 including positioning elements 41, movable elements 42, etc. The clamping member 42 and the first elastic member 43, and the positioning member 41 are disposed on the upper surface of the tooling base 1. The movable clamping member 42 and the first elastic member 43 are both embedded in the receiving cavity 31. The linkage clamping assembly 5 includes a drive connector 51, a first connector 52, and a second connector 53. One end of the drive connector 51 is connected to an external drive mechanism, and the other end is connected to the first connector 52. One end of the first connector 52 is connected to one of the linkage bearing assemblies 3, and both ends of the second connector 53 are connected to two linkage bearing assemblies 3 respectively.

[0032] Specifically, two guide mechanisms are arranged in parallel on the tooling base. Multiple linkage bearing components and multiple positioning clamping components are configured, with each linkage bearing component corresponding to one of the positioning clamping components. The linkage bearing components are connected to the upper surface of the guide mechanisms. One side of each linkage bearing component has a receiving cavity, and a boss is located in the middle, with a through-hole in the center of the boss. The positioning component is fixed to the tooling base, and the movable clamping component and the first elastic component are embedded in the receiving cavity. The linkage clamping component drives the linkage bearing component to move synchronously through the first and second connecting components.

[0033] like Figure 3 , Figure 9 As shown, in the embodiment, the positioning clamping assembly 4 also includes a connecting beam 44, and each positioning element 41 in the same positioning clamping assembly 4 is connected into one unit by the connecting beam 44.

[0034] Multiple positioning components are set in the same positioning clamping assembly. For example, a positioning clamping assembly has 3 positioning components, which are then connected into one unit by a connecting beam. The two ends of the connecting beam are fastened to the positioning components by bolts. The length of the linkage bearing assembly is selected according to the operation requirements. The receiving cavity is used to carry the movable clamping component and the first elastic component. The guide mechanism works with the linkage clamping assembly to realize the synchronous clamping of multiple positioning components, thereby improving the consistency of batch processing.

[0035] like Figure 3 As shown, in the embodiment, a linkage bearing component 3, which is away from the first connector 52, has a whole-plate elastic component 6 connected to its outer wall.

[0036] Understandably, the configured multiple positioning clamping components and multiple linkage bearing components are set one-to-one and connected in series through the second connector to achieve synchronous clamping and reset. The outer wall of a linkage bearing component away from the first connector is connected to a whole-plate elastic component. The function of the whole-plate elastic component is to push all linkage bearing components to their original positions.

[0037] like Figure 5 As shown, in the embodiment, the whole plate elastic component 6 includes a limiting block 61, a guide post 62 and a second elastic element 63. The limiting block 61 has a hollow structure and is connected to the upper surface of the tooling base 1. The second elastic element 63 is disposed at one end of the limiting block 61 and is connected to the linkage bearing component 3. The guide post 62 passes through the inner hole of the limiting block 61 and the second elastic element 63 and is connected to the linkage bearing component 3.

[0038] Specifically, the limiting block has a hollow stepped structure and is fixed to the upper surface of the tooling base, maintaining a distance from the linkage bearing assembly. The second elastic element can be made of multiple stacked springs, installed between the limiting block and the linkage bearing assembly. After the guide post passes through the inner hole of the limiting block and the second elastic element, it connects to the linkage bearing assembly. The guide post can limit the movement trajectory of the linkage bearing assembly and prevent deviation. The second elastic element, through its rebound action, resets the tooling. The overall structure meets the requirements of high-frequency operation.

[0039] like Figure 4 , Figure 9 As shown, in the embodiment, the positioning member 41 has a first contour fitting part 411 on one side, and the movable clamping member 42 has a second contour fitting part 421 on one side. Both the first contour fitting part 411 and the second contour fitting part 421 are fully open structures and are arranged vertically along the height direction.

[0040] Specifically, both the first contour fitting part of the positioning component and the second contour fitting part of the movable clamping component are designed as fully open structures, extending vertically along the height direction to accommodate workpieces of different heights. The inner walls of the first and second contour fitting parts are smooth and burr-free to ensure a tight fit with the workpiece. The size of the receiving cavity of the linkage bearing assembly is determined according to the size of the movable clamping component, ensuring smooth sliding of the movable clamping component. This, combined with the first elastic component, enables adaptive clamping. Simultaneously, the vertically extending structure facilitates workpiece loading and unloading and subsequent processing operations, improving work efficiency.

[0041] like Figure 10 , Figure 11 As shown, in the embodiment, the first contour fitting part 411 has a first V-shaped surface 411a with a 90° angle opening, and the second contour fitting part 421 has a second V-shaped surface 421a with a 90° angle opening. The first V-shaped surface 411a and the second V-shaped surface 421a are arranged facing each other.

[0042] Both the first V-shaped surface of the first contour adapter and the second V-shaped surface of the second contour adapter are designed with a 90-degree angled opening, and they are arranged facing each other to form a symmetrical clamping structure. The V-shaped surfaces conform to the side of the workpiece for positioning, and together with the buffering effect of the first elastic element, the workpiece is subjected to balanced force, avoiding positioning displacement caused by unilateral force. This structure can improve clamping stability through surface contact and meet the clamping requirements of workpieces of various sizes.

[0043] like Figure 10 , Figure 11 As shown in the embodiment, a cylindrical first rounded corner 411b is provided at the right-angle connection of the first contour adapter 411, and a cylindrical second rounded corner 421b is provided at the right-angle connection of the second contour adapter 421.

[0044] The first contour adapter has a cylindrical first fillet at the right-angle connection point, and the second contour adapter has a corresponding cylindrical second fillet at the right-angle connection point. The first and second fillets can remove small impurities generated during processing, preventing impurities from accumulating at the right angle of the V-shaped surface, ensuring a tight fit between the workpiece and the V-shaped surface, and preventing the fitting gap from affecting the positioning accuracy.

[0045] like Figure 2 , Figure 6As shown, in this embodiment, the guide mechanism 2 consists of multiple linear slide rails 21. Each linear slide rail 21 includes a guide rail 211 and a slider 212. The guide rail 211 has a positioning hole 213. The guide rail 211 is mounted on the tooling base 1 through the positioning hole 213. Both ends of the linkage bearing component 3 and the lower end of the boss 32 are provided with connecting grooves 34. Each connecting groove 34 has multiple assembly holes 341. Each connecting groove 34 is connected to a slider 212 through its own assembly hole 341 using a fastener, thereby driving the linkage bearing component 3 to slide along the length direction of the guide rail 211. The number of sliders 212 corresponds one-to-one with the number of connecting grooves 34.

[0046] Specifically, the guiding mechanism uses multiple linear guides, each consisting of a guide rail and a slider. Positioning holes are provided on the guide rails, which are then fixed to the tooling base to ensure consistent parallelism among the multiple guide rails. Connecting slots are provided at both ends of the linkage bearing assembly and at the lower end of the boss. These connecting slots have multiple mounting holes, and each connecting slot is connected to its corresponding slider via a fastener, forming a multi-point support structure. The number of sliders corresponds one-to-one with the number of connecting slots, allowing the linkage bearing assembly to slide smoothly along the guide rails, reducing movement jamming and wear.

[0047] like Figure 6 As shown in the embodiment, at least one extension seat 7 is provided on both sides of the tooling base 1, and the extension seat 7 is provided with a through extension hole 71 for installing extension components.

[0048] The extension base is connected to the tooling base, and the extension hole enables the secure installation of the extension components through fasteners. This design provides the tooling with expansion space, allowing for the addition of components according to actual operational needs without modifying the main structure of the tooling.

[0049] The tooling of this invention is suitable for mass production. Each tooling is stably mounted on the ground via a support frame. Anti-slip pads and leveling bolts can be added to the bottom of the support frame to increase stability and ensure that the tooling does not wobble during lifting and processing. A hoist is mounted below the tooling, which controls the smooth up and down movement of the tooling. After one tooling completes workpiece positioning and processing, the hoist drives it down to the unloading station. Once the previous tooling is reset, the hoist transports the next tooling fully loaded with workpieces to the processing station, realizing the cyclical flow and continuous operation of the tooling.

[0050] A method for using a high-precision integrated positioning fixture mainly includes four steps: fixture reset preparation, workpiece positioning and placement, clamping and locking, and workpiece unlocking and removal. 1. Tooling reset preparation: Control the external drive mechanism to stop outputting power, the second elastic element 63 of the whole plate elastic component 6 releases the rebound force, pushes the linkage bearing component 3 connected to it, and drives another linkage bearing component 3 to slide synchronously to the initial position along the guide mechanism 2 through the second connector 53. At this time, the movable clamping part 42 of the positioning clamping component 4 opens under the elastic reset force of the first elastic element 43, so that the first contour adaptation part 411 and the second contour adaptation part 421 form a clamping opening; Second, workpiece positioning and placement: the workpiece to be positioned is placed at the first contour adaptation part 411 of the positioning part 41, so that the edge of the workpiece is closely attached to the first V-shaped surface 411a to achieve preliminary positioning. Third, clamping and locking: the external drive mechanism is activated, and the first connector 52, the linkage bearing component 3 and the second connector 53 are driven to slide towards the whole plate elastic component 6 through the drive connector 51, thereby compressing the second elastic element 63 of the whole plate elastic component 6 to store rebound potential energy. The linkage bearing component 3 simultaneously drives the movable clamping member 42 in the receiving cavity 31 to move towards the workpiece, compressing the first elastic element 43 to accumulate elastic potential energy, until the second V-shaped surface 421a of the second contour adaptation part 421 is tightly fitted with the other side of the workpiece, thereby realizing workpiece clamping and locking. Fourth, the workpiece is unlocked and placed, the power output of the external drive mechanism is stopped, the whole plate elastic component 6 releases the rebound potential energy, drives the linkage bearing component 3, so that the movable clamping part 42 moves away from the positioning part 41, thereby releasing the clamping constraint on the workpiece, and after the workpiece is taken out, one operation is completed.

[0051] In summary, this application avoids cumulative errors by having the positioning component, the movable clamping component, and the first elastic component of the positioning and clamping assembly work together; the elastic buffer can match workpieces of various specifications, preventing damage to large workpieces and deformation of small workpieces; the integrated design simplifies components and processes, improves structural compactness, and meets the needs of automated batch processing.

[0052] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0053] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0054] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A high-precision integrated positioning fixture, characterized in that, include: Tooling base (1), on which multiple parallel guide mechanisms (2) are provided; At least two linkage bearing components (3) are connected to the upper surface of the guide mechanism (2) and slide in cooperation with the guide mechanism (2). One side of the linkage bearing component (3) is provided with a receiving cavity (31), and the middle of the linkage bearing component (3) is also provided with a boss (32). The boss (32) has a through-type connecting hole (33). At least two positioning clamping components (4) are provided one-to-one with the linkage bearing component (3). The positioning clamping component (4) includes a positioning element (41), a movable clamping element (42) and a first elastic element (43). The positioning element (41) is provided on the upper surface of the tooling base (1). The movable clamping element (42) and the first elastic element (43) are both embedded in the receiving cavity (31). The linkage clamping assembly (5) includes a drive connector (51), a first connector (52), and a second connector (53). One end of the drive connector (51) is connected to an external drive mechanism, and the other end is connected to the first connector (52). One end of the first connector (52) is connected to one of the linkage bearing assemblies (3), and both ends of the second connector (53) are connected to two of the linkage bearing assemblies (3).

2. The high-precision integrated positioning fixture according to claim 1, characterized in that, The positioning clamping assembly (4) also includes a connecting beam (44), and each positioning element (41) in the same positioning clamping assembly (4) is connected as a whole through the connecting beam (44).

3. The high-precision integrated positioning fixture according to claim 2, characterized in that, One of the linkage bearing components (3) located away from the first connector (52) has a whole disc elastic component (6) connected to its outer wall.

4. The high-precision integrated positioning fixture according to claim 3, characterized in that, The whole plate elastic component (6) includes a limiting block (61), a guide post (62) and a second elastic element (63). The limiting block (61) is a hollow structure and is connected to the upper surface of the tooling base (1). The second elastic element (63) is located at one end of the limiting block (61) and is connected to the linkage bearing component (3). The guide post (62) passes through the inner hole of the limiting block (61) and the second elastic element (63) and is connected to the linkage bearing component (3).

5. A high-precision integrated positioning fixture according to any one of claims 1 to 4, characterized in that, The positioning member (41) has a first contour fitting part (411) on one side, and the movable clamping member (42) has a second contour fitting part (421) on one side. Both the first contour fitting part (411) and the second contour fitting part (421) are fully open structures and are arranged vertically along the height direction.

6. The high-precision integrated positioning fixture according to claim 5, characterized in that, The first contour adapter (411) has a first V-shaped surface (411a) with a 90° angle opening, and the second contour adapter (421) has a second V-shaped surface (421a) with a 90° angle opening. The first V-shaped surface (411a) and the second V-shaped surface (421a) are arranged facing each other.

7. A high-precision integrated positioning fixture according to claim 6, characterized in that, The first contour adapter (411) has a first rounded corner (411b) at the right-angle connection point, and the second contour adapter (421) has a second rounded corner (421b) at the right-angle connection point.

8. A high-precision integrated positioning fixture according to any one of claims 1 to 4, characterized in that, The guiding mechanism (2) consists of multiple linear slide rails (21). Each linear slide rail (21) includes a guide rail (211) and a slider (212). The guide rail (211) has a positioning hole (213). The guide rail (211) is installed on the tooling base (1) through the positioning hole (213). Both ends of the linkage bearing assembly (3) and the lower end of the boss (32) are provided with connecting grooves (34). The connecting grooves (34) have multiple assembly holes (341). Each connecting groove (34) is connected to a slider (212) through its own assembly hole (341) using a fastener, thereby driving the linkage bearing assembly (3) to slide along the length direction of the guide rail (211). The number of sliders (212) corresponds one-to-one with the number of connecting grooves (34).

9. A high-precision integrated positioning fixture according to claim 8, characterized in that, The tooling base (1) is provided with at least one expansion seat (7) on both sides, and the expansion seat (7) is provided with a through expansion hole (71) for installing expansion components.

10. A method of using a high-precision integrated positioning fixture according to any one of claims 6 to 9, characterized in that, The main steps include: Step 1, tooling reset preparation: Control the external drive mechanism to stop outputting power, the second elastic element (63) of the whole plate elastic component (6) releases the rebound force, pushes the linkage bearing component (3) connected to it, and drives another linkage bearing component (3) to slide synchronously to the initial position along the guide mechanism (2) through the second connector (53). At this time, the movable clamping part (42) of the positioning clamping component (4) opens under the elastic reset force of the first elastic element (43), so that the first contour fitting part (411) and the second contour fitting part (421) form a clamping opening; Step 2, workpiece positioning and placement: place the workpiece to be positioned at the first contour fitting part (411) of the positioning part (41), so that the edge of the workpiece is closely fitted with the first V-shaped surface (411a) to achieve preliminary positioning. Step 3, clamping and locking: Activate the external drive mechanism, and drive the first connector (52), the linkage bearing assembly (3) and the second connector (53) to slide towards the whole plate elastic assembly (6) through the drive connector (51), thereby compressing the second elastic element (63) of the whole plate elastic assembly (6) to store rebound potential energy. The linkage bearing assembly (3) simultaneously drives the movable clamping member (42) in the receiving cavity (31) to move towards the workpiece, compressing the first elastic element (43) to accumulate elastic potential energy, until the second V-shaped surface (421a) of the second contour fitting part (421) is tightly fitted with the other side of the workpiece, thereby realizing workpiece clamping and locking. Step 4: Unlock and pick up the workpiece, stop the power output of the external drive mechanism, release the rebound potential energy of the whole plate elastic component (6), drive the linkage bearing component (3), so that the movable clamping part (42) moves away from the positioning part (41), thereby releasing the clamping constraint on the workpiece, and after taking out the workpiece, one operation is completed.

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