A precision mechanical equipment assembly jig assembly

Abstract

This utility model discloses a jig assembly for assembling precision mechanical equipment, relating to the field of auxiliary jig technology. It includes a base, with lifting chambers fixedly connected to both ends of the top of the base. An electric guide rail device is fixedly connected between the side walls of the lifting chambers at both ends. A first hydraulic rod is fixedly connected to the drive end of the electric guide rail device. An upper adjusting jig device is fixedly connected to the bottom of the device with the first hydraulic rod. A first hydraulic jig device is fixedly connected to the cavity of each of the lifting chambers at both ends via a lifting mechanism. The base provided by this utility model facilitates the assembly and adjustment of the auxiliary jig while simultaneously achieving shock absorption to prevent vibration transmission from affecting assembly accuracy. This solves the problems of existing jig assemblies for assembling precision mechanical equipment, which often have fixed or single-dimensional adjustment designs, poor adaptability, low assembly efficiency and accuracy consistency, and inadequate shock absorption and isolation performance, leading to workpiece displacement and micro-damage due to easy vibration transmission.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary clamping technology, specifically to a clamping assembly for assembling precision mechanical equipment. Background Technology

[0002] Precision mechanical equipment assembly fixtures are specialized device systems that precisely position and stably clamp the parts to be assembled, and assist in the assembly operation. Their core function is to ensure the positional accuracy, posture stability, and operational consistency of precision equipment during assembly, which directly affects the assembly accuracy of the equipment.

[0003] A search revealed that the publication (announcement) number is CN219404053U, and the title is: "A positioning fixture for assembling mechanical equipment." It includes a limiting sleeve, a fixing column, and a fixing sleeve. The inner wall of the limiting sleeve is fitted with the fixing column, and the bottom of the outer wall of the fixing column is fitted with the fixing sleeve. The inner wall of the limiting sleeve is fitted with connecting blocks, etc., which can drive the fixing column to rotate. The rotation of the fixing column can adjust the movement of the clamping platform, thereby improving the flexibility of the clamping platform.

[0004] The above technical solution has the following shortcomings;

[0005] The above-mentioned solutions suffer from insufficient flexibility in clamping and adjustment during practical use. Their clamping mechanisms are mostly fixed or single-dimensional adjustment designs, making it difficult to achieve multi-axis linkage adjustment for precision workpieces of different specifications and irregular shapes. Especially in complex assembly processes, it is impossible to quickly and accurately adjust the clamping angle and position, resulting in poor adaptability to multi-station assembly requirements. This leads to long workpiece clamping and positioning times, affecting overall assembly efficiency and accuracy consistency. Furthermore, the vibration damping and isolation performance is poor. After clamping the workpiece, the vibration generated during assembly can be directly transmitted to other related clamps through the clamp body, triggering a chain vibration reaction. This not only causes the relative position of the workpieces on each clamp to shift, affecting assembly accuracy, but may also cause micro-damage to the surface of precision workpieces due to continuous vibration. Especially for components with high-precision fitting requirements, vibration transmission will exacerbate assembly errors, making it difficult to guarantee the stability of the assembly quality of precision equipment. Utility Model Content

[0006] In view of the problems existing in the above-mentioned fixture assembly for assembling precision mechanical equipment, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a fixture assembly for assembling precision mechanical equipment, which solves the problems that the existing fixture assemblies for assembling precision mechanical equipment are mostly fixed or single-dimensional adjustable, with poor adaptability, low assembly efficiency and accuracy consistency, poor shock absorption and isolation performance, and easy transmission of vibration causing workpiece displacement and micro-damage.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A jig assembly for assembling precision mechanical equipment includes a base, with lifting chambers fixedly connected to both ends of the top of the base, an electric guide rail device fixedly connected between the side walls of the lifting chambers at both ends, a first hydraulic rod fixedly connected to the drive end of the electric guide rail device, an upper adjusting jig device fixedly connected to the bottom of the device with the first hydraulic rod, and a first hydraulic jig device fixedly connected to the cavity of each of the lifting chambers at both ends through a lifting mechanism.

[0010] The top of the base is fixedly connected to a support base via a buffer mechanism. The top of the support base is fixedly connected to an X-axis moving device. The top of the X-axis moving device is fixedly connected to a Y-axis moving device. The moving end of the Y-axis moving device is fixedly connected to a worktable. A moving positioning clamp is fixedly connected to the cavity of the worktable via a drive mechanism. A fixed positioning clamp is fixedly connected to one end of the top of the worktable. A display controller is fixedly connected to the side wall of the base.

[0011] Preferably, the lifting mechanism includes a second hydraulic rod, a first limiting slide, and a first support arm. The top of the cavity of each of the two lifting chambers is fixedly connected to the second hydraulic rod. The side walls of each of the two lifting chambers are provided with a first limiting slide and are slidably connected to a first support arm. The top of one end of the first support arm at each end is fixedly connected to one end of the corresponding second hydraulic rod. The side walls of the first support arms at each end are fixedly connected to the side walls of the first hydraulic clamping device.

[0012] Preferably, the buffer mechanism includes friction ports, friction sleeves, hydraulic spring buffers, and polyurethane support pads. Friction ports are provided around the bottom of the support base. Friction sleeves are fixedly connected to the top of the base. Hydraulic spring buffers are fixedly connected to the bottom of the support base. The tops of the friction sleeves around the base pass through the corresponding friction ports and are fixedly connected to one end of the hydraulic spring buffers. A polyurethane support pad is fixedly connected between the side walls of the base and the support base.

[0013] Preferably, the driving mechanism includes an electric push rod, a second limiting slide, and a second support arm. The electric push rod is fixedly connected to one end of the cavity of the worktable. The second limiting slide is opened at one end of the top of the worktable and is slidably connected to the second support arm. The side wall of the second support arm is fixedly connected to one end of the electric push rod, and the top of the second support arm is fixedly connected to the bottom of the movable positioning clamp.

[0014] Preferably, the upper adjusting clamp device includes a support plate, a third hydraulic rod is rotatably connected to the side wall of the support plate, a U-shaped rotating seat is fixedly connected to the bottom of the support plate, a connecting arm is rotatably connected between the two ends of the U-shaped rotating seat, a second hydraulic clamp device is fixedly connected to one end of the connecting arm, and one end of the third hydraulic rod is rotatably connected to one end of the connecting arm.

[0015] Furthermore, both the movable positioning clamp and the fixed positioning clamp have buffer corrosion-resistant pads fixedly connected to their sidewall surfaces.

[0016] Preferably, the friction sleeve is made of a composite of nitrile rubber and carbon fiber, and has an aluminum titanium nitride coating on its surface.

[0017] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0018] 1. This utility model utilizes an electric guide rail device and a first hydraulic rod to drive an upper adjusting fixture device to achieve horizontal and vertical adjustment. A lifting mechanism drives the first hydraulic fixture device to rise and fall, and an X / Y axis moving device drives the worktable to move precisely. Angle adjustment is achieved through the upper adjusting fixture device via a third hydraulic rod. The cooperation of multiple mechanisms breaks through the limitations of single-dimensional adjustment, adapts to precision workpieces of different specifications and angles, and solves the problems of poor adaptability and low assembly efficiency.

[0019] 2. This utility model utilizes the friction port and friction sleeve set in the buffer mechanism to consume vibration energy, the hydraulic spring buffer absorbs the impact, and the polyurethane support pad assists in shock absorption. The friction sleeve is made of nitrile rubber-carbon fiber composite material and has an aluminum titanium nitride coating to enhance shock absorption and wear resistance, effectively block vibration transmission, avoid workpiece displacement or micro-damage, and ensure consistent assembly accuracy.

[0020] 3. This utility model utilizes a driving mechanism to quickly position and clamp the moving positioning clamping plate and the fixed positioning clamping plate. The buffer corrosion-resistant pads on the side walls of the clamping plates buffer the clamping force and prevent corrosion. The first / second hydraulic clamping device provides stable clamping force, ensuring that the workpiece assembly is free from deviation, while protecting the surface quality of the workpiece and improving the assembly qualification rate and precision. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a front sectional view of the present invention;

[0024] Figure 3 This is a side sectional view of the upper adjusting clamp device of this utility model;

[0025] Figure 4 For the present utility model Figure 2 Enlarged schematic diagram of part A.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Base; 2. Lifting chamber; 3. Electric guide rail device; 4. First hydraulic rod; 5. Upper adjusting clamp device; 6. First hydraulic clamp device; 7. Support seat; 8. X-axis moving device; 9. Y-axis moving device; 10. Worktable; 11. Moving positioning clamp; 12. Fixed positioning clamp; 13. Display controller; 14. Second hydraulic rod; 15. First limit slide; 16. First support arm; 17. Friction port; 18. Friction sleeve; 19. Hydraulic spring buffer; 20. Polyurethane support pad; 21. Electric push rod; 22. Second limit slide; 23. Second support arm; 24. Support plate; 25. Third hydraulic rod; 26. U-shaped rotating seat; 27. Connecting arm; 28. Second hydraulic clamp device; 29. ​​Buffer corrosion-resistant pad. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] This utility model discloses a fixture assembly for assembling precision mechanical equipment.

[0030] This utility model provides, for example Figure 1-4 The fixture assembly for assembling precision mechanical equipment shown includes a base 1, with lifting chambers 2 fixedly connected to both ends of the top of the base 1, an electric guide rail device 3 fixedly connected between the side walls of the lifting chambers 2, a first hydraulic rod 4 fixedly connected to the drive end of the electric guide rail device 3, an upper adjusting fixture device 5 fixedly connected to the bottom of the first hydraulic rod 4, and a first hydraulic fixture device 6 fixedly connected to the cavity of the lifting chambers 2 through a lifting mechanism.

[0031] A support base 7 is fixedly connected to the top of the base 1 via a buffer mechanism. An X-axis moving device 8 is fixedly connected to the top of the support base 7. A Y-axis moving device 9 is fixedly connected to the top of the X-axis moving device 8. A worktable 10 is fixedly connected to the moving end of the Y-axis moving device 9. A moving positioning clamp 11 is fixedly connected to the cavity of the worktable 10 via a drive mechanism. A fixed positioning clamp 12 is fixedly connected to one end of the top of the worktable 10. A display controller 13 is fixedly connected to the side wall of the base 1. The lifting chamber 2 provides installation and protection space for the lifting mechanism, preventing external impurities from affecting the lifting action. The electric guide rail device 3 drives the first hydraulic rod 4 and the upper adjusting clamp device 5 to move flexibly in the horizontal direction, realizing the lateral adjustment of the clamping position. The first hydraulic rod 4 provides vertical lifting power to the upper adjusting clamp device 5, adapting to the clamping requirements of workpieces of different heights. The upper adjusting clamp device 5 can adjust the clamping angle and force. The clamping device 6 provides auxiliary clamping from both sides, and the two work together to achieve stable clamping in multiple directions, improving adaptability. The buffer mechanism prevents the vibration of the base 1 from being transmitted to the support seat 7, protecting the workpiece from vibration damage. The support seat 7 provides a stable mounting platform for the X-axis moving device 8. The X-axis moving device 8 works in conjunction with the Y-axis moving device 9 to drive the worktable 10 to achieve precise horizontal displacement, facilitating the adjustment of the workpiece to the optimal assembly position. The drive mechanism drives the moving positioning clamp 11 to work in conjunction with the fixed positioning clamp 12 to achieve rapid positioning and clamping of the workpiece. The display controller 13 allows operators to monitor equipment operating parameters and adjust clamping and moving parameters, achieving intelligent operation. This solves the problems of existing clamping mechanisms for precision machinery assembly, which are mostly fixed or single-dimensional adjustment designs, resulting in poor adaptability, low assembly efficiency and accuracy consistency, poor shock absorption and isolation performance, and easy transmission of vibration causing workpiece displacement and micro-damage.

[0032] To achieve precise lifting and lowering of the first hydraulic clamping device and adapt to clamping workpieces of different heights, such as... Figure 1 and 2As shown, the lifting mechanism includes a second hydraulic rod 14, a first limiting slide 15, and a first support arm 16. The top of the cavity of each of the two lifting chambers 2 is fixedly connected to the second hydraulic rod 14. The side walls of each of the two lifting chambers 2 are provided with the first limiting slide 15 and are slidably connected to the first support arm 16. The top of one end of the first support arm 16 at both ends is fixedly connected to one end of the corresponding second hydraulic rod 14. The side walls of the first support arms 16 at both ends are fixedly connected to the side walls of the first hydraulic clamping device 6. The second hydraulic rod 14 provides stable lifting power, and the lifting height of the first support arm 16 can be precisely controlled to meet the clamping requirements of workpieces of different specifications. The first limiting slide 15 restricts the movement trajectory of the first support arm 16 to prevent deviation during lifting. The first support arm 16 connects the second hydraulic rod 14 and the first hydraulic clamping device 6 to ensure stable power transmission and realize the smooth lifting of the first hydraulic clamping device 6.

[0033] To block vibration transmission and protect the workpiece from micro-damage, such as Figure 2 and 4 As shown, the buffer mechanism includes friction ports 17, friction sleeves 18, hydraulic spring buffers 19, and polyurethane support pads 20. Friction ports 17 are provided around the bottom of the support base 7. Friction sleeves 18 are fixedly connected to the top of the base 1 around the four sides. Hydraulic spring buffers 19 are fixedly connected to the bottom of the support base 7 around the four sides. The tops of the friction sleeves 18 pass through the corresponding friction ports 17 and are fixedly connected to one end of the hydraulic spring buffers 19. Polyurethane support pads 20 are fixedly connected between the side walls of the base 1 and the support base 7. By using the friction ports 17 and friction sleeves 18 to cooperate, some vibration energy is consumed through friction, limiting the vibration direction of the support base 7. The hydraulic spring buffers 19 absorb vibration impact through elastic deformation, reducing vibration transmission. The polyurethane support pads 20 further buffer vibration in the side wall direction, forming multiple shock absorption to avoid workpiece displacement or micro-damage caused by vibration, and to ensure consistent assembly accuracy.

[0034] To drive the moving positioning clamp to move and achieve rapid workpiece positioning, such as... Figure 1 and 2As shown, the driving mechanism includes an electric push rod 21, a second limiting slide 22, and a second support arm 23. The electric push rod 21 is fixedly connected to one end of the cavity of the worktable 10. A second limiting slide 22 is provided at one end of the top of the worktable 10, and a second support arm 23 is slidably connected thereto. The side wall of the second support arm 23 is fixedly connected to one end of the electric push rod 21, and the top of the second support arm 23 is fixedly connected to the bottom of the movable positioning clamp 11. The electric push rod 21 provides a stable linear driving force, which can precisely control the moving distance of the movable positioning clamp 11, adapting to the positioning requirements of workpieces of different widths. The second limiting slide 22 restricts the movement trajectory of the second support arm 23 to prevent deviation during movement. The second support arm 23 connects the electric push rod 21 and the movable positioning clamp 11, ensuring stable power transmission and achieving precise cooperation between the movable positioning clamp 11 and the fixed positioning clamp 12 for rapid workpiece clamping.

[0035] To achieve angle adjustment of the upper adjusting fixture device and adapt to the clamping of complex workpieces, such as... Figure 1-3 As shown, the upper adjusting clamping device 5 includes a support plate 24. A third hydraulic rod 25 is rotatably connected to the side wall of the support plate 24. A U-shaped rotating seat 26 is fixedly connected to the bottom of the support plate 24. A connecting arm 27 is rotatably connected between the two ends of the U-shaped rotating seat 26. A second hydraulic clamping device 28 is fixedly connected to one end of the connecting arm 27. One end of the third hydraulic rod 25 is rotatably connected to one end of the connecting arm 27. The support plate 24 provides mounting support for the third hydraulic rod 25 and the U-shaped rotating seat 26. The third hydraulic rod 25 drives the connecting arm 27 to rotate around the U-shaped rotating seat 26 through telescopic movement, thereby adjusting the angle of the second hydraulic clamping device 28 to adapt to the clamping requirements of workpieces with different tilt angles. The connecting arm 27 connects the U-shaped rotating seat 26 and the second hydraulic clamping device 28 to ensure smooth angle adjustment. The second hydraulic clamping device 28 provides a stable clamping force, improving the assembly adaptability of complex workpieces.

[0036] To enhance the cushioning protection and corrosion resistance of the clamping plate and the workpiece, such as Figure 1 and 2 As shown, both the moving positioning clamp 11 and the fixed positioning clamp 12 have buffer corrosion-resistant pads 29 fixedly connected to their side wall surfaces. The buffer corrosion-resistant pads 29 can buffer the clamping impact force of the clamp on the workpiece, avoid pressure damage to the workpiece surface, and at the same time, their corrosion resistance can prevent corrosion when the workpiece comes into contact with the clamp, protect the surface quality of the workpiece, and improve the qualification rate of the assembled workpiece.

[0037] To enhance the shock absorption and wear resistance of the friction sleeve and extend the life of the buffer mechanism, such as... Figure 2 and 4As shown, the friction sleeve 18 is made of nitrile rubber and carbon fiber composite, and has an aluminum titanium nitride coating on its surface. The nitrile rubber has excellent elasticity and shock absorption, and the carbon fiber enhances the structural strength of the friction sleeve 18. The combination of the two improves the overall mechanical properties of the friction sleeve. The aluminum titanium nitride coating has high hardness and strong wear resistance, which can reduce the friction loss between the friction sleeve 18 and the friction port 17, extend the service life of the buffer mechanism, and ensure stable long-term shock absorption effect.

[0038] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A jig assembly for assembling precision mechanical devices, comprising a base (1), characterized in that, The top two ends of the base (1) are fixedly connected to lifting chambers (2), and electric guide rail devices (3) are fixedly connected between the side walls of the lifting chambers (2) at both ends. The drive end of the electric guide rail device (3) is fixedly connected to a first hydraulic rod (4), and the bottom of the first hydraulic rod (4) is fixedly connected to an upper adjusting clamp device (5). The cavity of the lifting chambers (2) at both ends is fixedly connected to a first hydraulic clamp device (6) through a lifting mechanism. The top of the base (1) is fixedly connected to a support seat (7) via a buffer mechanism. The top of the support seat (7) is fixedly connected to an X-axis moving device (8). The top of the X-axis moving device (8) is fixedly connected to a Y-axis moving device (9). The moving end of the Y-axis moving device (9) is fixedly connected to a worktable (10). The cavity of the worktable (10) is fixedly connected to a moving positioning clamp (11) via a drive mechanism. One end of the top of the worktable (10) is fixedly connected to a fixed positioning clamp (12). The side wall of the base (1) is fixedly connected to a display controller (13).

2. The fixture assembly of claim 1, wherein, The lifting mechanism includes a second hydraulic rod (14), a first limiting slide (15), and a first support arm (16). The top of the cavity of the lifting chamber (2) at both ends is fixedly connected to the second hydraulic rod (14). The side walls of the lifting chamber (2) at both ends are provided with the first limiting slide (15) and are slidably connected to the first support arm (16). The top of one end of the first support arm (16) at both ends is fixedly connected to one end of the corresponding second hydraulic rod (14). The side walls of the first support arm (16) at both ends are fixedly connected to the side walls of the first hydraulic clamp device (6).

3. The fixture assembly for assembling precision mechanical equipment according to claim 1, characterized in that, The buffer mechanism includes a friction port (17), a friction sleeve (18), a hydraulic spring buffer (19), and a polyurethane support pad (20). The bottom of the support base (7) is provided with friction ports (17). The top of the base (1) is fixedly connected with friction sleeves (18). The bottom of the support base (7) is fixedly connected with hydraulic spring buffers (19). The top of the friction sleeves (18) on all four sides passes through the corresponding friction ports (17) and is fixedly connected to one end of the hydraulic spring buffers (19). A polyurethane support pad (20) is fixedly connected between the side walls of the base (1) and the support base (7).

4. The fixture assembly of claim 1, wherein, The driving mechanism includes an electric push rod (21), a second limiting slide (22), and a second support arm (23). The electric push rod (21) is fixedly connected to one end of the cavity of the worktable (10). The second limiting slide (22) is opened at one end of the top of the worktable (10) and is slidably connected to the second support arm (23). The side wall of the second support arm (23) is fixedly connected to one end of the electric push rod (21), and the top of the second support arm (23) is fixedly connected to the bottom of the movable positioning clamp (11).

5. The fixture assembly of claim 1, wherein, The upper adjusting clamp device (5) includes a support plate (24), a third hydraulic rod (25) is rotatably connected to the side wall of the support plate (24), a U-shaped rotating seat (26) is fixedly connected to the bottom of the support plate (24), a connecting arm (27) is rotatably connected between the two ends of the U-shaped rotating seat (26), a second hydraulic clamp device (28) is fixedly connected to one end of the connecting arm (27), and one end of the third hydraulic rod (25) is rotatably connected to one end of the connecting arm (27).

6. The fixture assembly of claim 1, wherein, Both the movable positioning clamp (11) and the fixed positioning clamp (12) have a buffer corrosion-resistant pad (29) fixedly connected to their side wall surfaces.

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