An eccentricity compensation fixture for a machine case and a clamping method

Abstract

This invention relates to the field of casing clamping technology, specifically to an eccentricity compensation clamp and clamping method for casings. The eccentricity compensation clamp for casings includes: a base with a fixed cylinder; a fixing component disposed on the base and used to clamp and fix the bottom of the casing; and a centrifugal deformation control component, which includes a moving block, an adjustment mechanism one, an adjustment mechanism two, and a clamping mechanism. By using this invention, the operational difficulty of fixing casings with complex structures, protruding and asymmetrical casing holes, and high-speed rotation required during processing can be reduced, effectively improving production efficiency. This invention has a simple and easy-to-use structure, strong operability, and can be quickly replaced to improve processing efficiency. Different specifications of casings can be clamped by changing different specifications of parts, making it worthy of widespread promotion.

Description

Technical Field

[0001] This invention relates to the field of casing clamping technology, specifically to an eccentric compensation clamping fixture and clamping method for a casing. Background Technology

[0002] The casing plays a crucial role in aviation, aerospace, and shipbuilding, and its machining quality directly impacts the performance and reliability of the equipment. As a thin-walled component, the casing is highly susceptible to deformation during machining, and some casings are asymmetrical, with one side not aligned with the other. The high-speed rotation required during casing machining exacerbates centrifugal deformation due to structural asymmetry.

[0003] Most existing casing clamps are designed for symmetrical casings, and the clamping and fixing devices are suitable for circumferentially symmetrical structures. No clamps have been designed for asymmetrical casings. Therefore, it is of great significance to provide a clamp suitable for asymmetrical casings to suppress deformation caused by centrifugal force imbalance during high-speed rotation. Summary of the Invention

[0004] The purpose of this invention is to provide an eccentric compensation fixture and clamping method for a casing, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] On the one hand, an eccentricity compensation fixture for a casing is provided, comprising:

[0007] The base has a fixed cylinder.

[0008] A fixing component, wherein the fixing component is disposed on the base and is used to clamp and fix the bottom of the casing; and

[0009] The centrifugal deformation control assembly includes a moving block, an adjustment mechanism one, an adjustment mechanism two, and a clamping mechanism. The adjustment mechanism one is used to adjust the position of the moving block on the fixed cylinder, the adjustment mechanism two is used to adjust the relative position between the clamping mechanism and the moving block, and the clamping mechanism is used to clamp and fix the casing hole.

[0010] Preferably, the base is provided with a worktable at its bottom.

[0011] Preferably, the fixing assembly includes a fixing rod and a fastening bolt. The fixing rod is arranged around the base and connected to the base by the fastening bolt. The fixing rod is provided with a snap-fit ​​groove. The fixing rod is fixed to the base by snapping the snap-fit ​​groove onto the bottom edge of the outer edge of the casing and fixing it with the fastening bolt.

[0012] Preferably, the adjustment mechanism includes a mounting block and a threaded rod. The mounting block is disposed on the fixed cylinder, and the threaded rod is disposed on the mounting block. The threaded rod and the movable block are interconnected, and the position of the movable block on the fixed cylinder is adjusted by rotating the threaded rod.

[0013] Preferably, the second adjustment mechanism includes a mounting rod and a connecting rod. The mounting rod is disposed on the moving block and is threadedly connected to the connecting rod. The clamping mechanism is disposed at the end of the connecting rod away from the mounting rod. The relative position between the clamping mechanism and the moving block is adjusted by rotating the connecting rod.

[0014] Preferably, the connecting rod is provided with a graduated groove.

[0015] Preferably, the mounting rod has a first fixing hole, and the connecting rod has a plurality of second fixing holes corresponding to the first fixing hole. The second adjusting mechanism also includes fixing bolts. When the first fixing hole and the second fixing holes are aligned with each other, the fixing bolts are sequentially connected to the first fixing hole and the second fixing hole to further restrict the relative movement of the mounting rod and the connecting rod.

[0016] Preferably, the clamping mechanism includes a clamping disc, a slider, and a sliding nut. The clamping disc is threaded to the connecting rod. The clamping disc has several sliding grooves. The slider is disposed in the sliding grooves. The slider is fixed by rotating the sliding nut.

[0017] On the other hand, a clamping method is provided for using the above-mentioned eccentric compensation fixture for the casing, comprising the following steps:

[0018] A. Install the base on the workbench and fix the base and the workbench together with bolts. Place the casing on the base and adjust its position so that the center of the casing is collinear with the fixed cylinder.

[0019] B. Connect the fixing rod to the base, snap it into the bottom edge of the outer edge of the casing through the snap-fit ​​groove, and then fix the fixing rod with the fastening bolts;

[0020] C. Install the mounting block onto the fixed cylinder, and adjust the height of the moving block by rotating the threaded rod according to the height of the casing hole;

[0021] D. Adjust the relative positions of the connecting rod and the mounting rod by rotating the connecting rod according to the length from the casing hole to the fixed cylinder;

[0022] E. Insert the mounting rod into the housing through the housing hole and fix the mounting rod to the moving block;

[0023] F, after aligning the clamping plate and the connecting rod with each other, rotate the clamping plate to fix the clamping plate and the connecting rod while the clamping block fits into the round hole of the casing;

[0024] G. Adjust the slider so that it fits against the inner wall of the casing's circular hole. Rotate the sliding nut to adjust and fix the position of the slider, thus completing the clamping process.

[0025] Compared with the prior art, the beneficial effects of this invention are as follows: This application is applicable to casings with complex structures, protruding and asymmetrical round holes, and requiring high-speed rotation during processing. After the casing is initially fixed by the fixing components, the clamping mechanism is used by adjusting mechanism one and adjusting mechanism two to clamp and fix the round hole of the casing again. It can clamp according to the shape and geometric features of the casing, thereby ensuring that the workpiece is accurately clamped and improving the subsequent processing accuracy and quality of the casing. By using this application, the operational difficulty of fixing casings with complex structures, protruding and asymmetrical round holes, and requiring high-speed rotation during processing can be reduced, which can effectively improve production efficiency. This invention has a simple and easy-to-use structure, strong operability, and can be quickly replaced to improve processing efficiency. Different specifications of casings can be clamped by changing different specifications of parts, which is worthy of widespread promotion. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the clamping state structure of the casing according to the present invention;

[0027] Figure 2 This is a schematic diagram of the isometric structure of the present invention;

[0028] Figure 3 This is a schematic diagram of the connection structure between the mounting block and the moving block of the present invention;

[0029] Figure 4 This is a schematic diagram of the connection structure between the mounting block and the threaded rod of the present invention;

[0030] Figure 5 This is a schematic diagram of the connection structure between the connecting rod and the mounting rod of the present invention;

[0031] Figure 6 This is a schematic diagram of the connection structure between the connecting rod and the clamping plate of the present invention;

[0032] Figure 7 This is a schematic diagram of the moving block and mounting rod structure of the present invention.

[0033] In the diagram: 1. Base, 2. Fixed cylinder, 3. Worktable, 4. Moving block, 5. Fixed pressure rod, 6. Fastening bolt, 7. Mounting block, 8. Threaded rod, 9. Mounting rod, 10. Connecting rod, 11. Scale groove, 12. Fixed bolt, 13. Clamping plate, 14. Slider, 15. Sliding nut, 100. Casing. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figure 1-7 The present invention provides a technical solution:

[0036] An eccentric compensation fixture for a housing, as shown in the instruction manual. Figure 1 As shown, it includes:

[0037] The base 1 is used to install and fix the components and the fixed cylinder 2. The base 1 is provided with the fixed cylinder 2. There are three threaded holes at the center of the base 1 and three corresponding threaded holes on the fixed cylinder 2. The threaded holes are spaced 120° apart. The middle cylinder is fixed to the base 1 with bolts, so that the center of the cylinder is collinear with the center of the base 1. The bottom of the base 1 is provided with a worktable 3, which is used to fix the base 1.

[0038] The fixing component is disposed on the base 1 and is used to clamp and fix the bottom of the housing 100; and

[0039] The centrifugal deformation control assembly includes a moving block 4, an adjustment mechanism one, an adjustment mechanism two, and a clamping mechanism. The adjustment mechanism one is used to adjust the position of the moving block 4 on the fixed cylinder 2, the adjustment mechanism two is used to adjust the relative position between the clamping mechanism and the moving block 4, and the clamping mechanism is used to clamp and fix the casing 100 circular hole.

[0040] The fixing assembly includes a fixing rod 5 and fastening bolts 6. The fixing rod 5 is arranged around the base 1 and connected to the base 1 by the fastening bolts 6. The fixing rod 5 is provided with a snap-fit ​​groove. The fixing rod 5 is fixed to the bottom edge of the outer edge of the housing 100 by snapping the snap-fit ​​groove and fixing it with the fastening bolts 6. The fixing rod 5 is used to fix the bottom outer edge of the housing 100. In this embodiment, there are six fixing rods 5 and six fastening bolts 6 corresponding to the fixing rods 5.

[0041] The adjustment mechanism includes a mounting block 7 and a threaded rod 8. The mounting block 7 is mounted on a fixed cylinder 2. The fixed cylinder 2 has several threaded holes 1 for fixing the mounting rod 9. The mounting block 7 has corresponding threaded holes 2. The mounting block 7 is fixedly connected to the fixed cylinder 2 by interlocking the threaded holes 1 and 2 and fastening them with bolts. The threaded rod 8 is mounted on the mounting block 7 and is connected to the movable block 4. The position of the movable block 4 on the fixed cylinder 2 is adjusted by rotating the threaded rod 8. As shown in the attached diagram of the instruction manual, there are three threaded rods 8. The threaded rods 8 are segmented with threads. These threads cooperate with the internal threads on the movable block 4 so that when a single threaded rod 8 is moved, only a single movable block 4 will move. The other two threaded rods 8 limit the movement of the movable block 4, so that it can only move along the threaded rods 8. The mounting block 7 and the threaded rod 8 are rotatably connected, so when the threaded rod 8 is rotated, the threaded rod 8 will only rotate around the threaded holes.

[0042] The second adjustment mechanism includes a mounting rod 9 and a connecting rod 10. The mounting rod 9 is threaded to the moving block 4, and the mounting rod 9 is threaded to the connecting rod 10. The clamping mechanism is located at the end of the connecting rod 10 away from the mounting rod 9. The relative position between the clamping mechanism and the moving block 4 is adjusted by rotating the connecting rod 10.

[0043] The connecting rod 10 is provided with a scale groove 11 to assist the user in adjusting the total length of the mounting rod 9 and the connecting rod 10, thereby ensuring the accuracy of the connection.

[0044] Mounting rod 9 has a fixing hole 1, and connecting rod 10 has several fixing holes 2 corresponding to fixing hole 1. Fixing hole 1 and fixing hole 2 are both threaded holes and are used to cooperate with fixing bolt 12 to restrict the relative movement of mounting rod 9 and connecting rod 10. Adjustment mechanism 2 also includes fixing bolt 12. When fixing hole 1 and fixing hole 2 are aligned with each other, fixing bolt 12 is connected to fixing hole 1 and fixing hole 2 in sequence to restrict the relative movement of mounting rod 9 and connecting rod 10 again.

[0045] The clamping mechanism includes a clamping plate 13, a slider 14, and a sliding nut 15. The clamping plate 13 is threaded to the connecting rod 10. The clamping plate 13 is used to install the slider 14 and the sliding nut 15. The clamping plate 13 has several sliding grooves. The slider 14 is set in the sliding grooves and is provided with a screw. The sliding nut 15 and the screw cooperate with each other. The slider 14 is fixed by rotating the sliding nut 15. The contact end between the slider 14 and the housing is made of polyurethane plastic to prevent the inner wall of the circular hole of the housing 100 from being worn during clamping.

[0046] Working principle: The base 1 is installed on the workbench 3, and the edge of the base 1 is fixed to the T-slot of the workbench 3 with bolts. The housing 100 is placed on the base 1, and its position is adjusted so that the center of the housing 100 is collinear with the fixed cylinder 2. The fixing rod 5 is connected to the base 1, and the bottom edge of the outer edge of the housing 100 is snapped into place using a snap-fit ​​groove. The fixing rod 5 is then fixed with fastening bolts 6. The mounting block 7 is installed on the fixed cylinder 2, and the height of the moving block 4 is adjusted by rotating the threaded rod 8 according to the height of the circular hole in the housing 100. The height of the moving block 4 is adjusted according to the height of the circular hole in the housing 100. The length of the fixed cylinder 2 is adjusted by rotating the connecting rod 10 to adjust the relative position of the connecting rod 10 and the mounting rod 9; the mounting rod 9 is inserted into the housing 100 through the round hole and fixed to the moving block 4; after aligning the clamping plate 13 and the connecting rod 10, the clamping plate 13 is rotated to fix the clamping plate 13 and the connecting rod 10 while the clamping block is attached to the round hole of the housing 100; the slider 14 is adjusted so that the slider 14 is attached to the inner wall of the round hole of the housing 100, and the position of the slider 14 is adjusted and fixed by rotating the sliding nut 15, thus completing the clamping.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An eccentricity compensation fixture for a housing, characterized in that, include: The base has a fixed cylinder. A fixing component, which is disposed on the base and used to clamp and fix the bottom of the casing; as well as A centrifugal deformation control assembly includes a moving block, an adjustment mechanism one, an adjustment mechanism two, and a clamping mechanism. The adjustment mechanism one is used to adjust the position of the moving block on the fixed cylinder, the adjustment mechanism two is used to adjust the relative position between the clamping mechanism and the moving block, and the clamping mechanism is used to clamp and fix the casing hole. The adjustment mechanism includes a mounting block and a threaded rod. The mounting block is disposed on the fixed cylinder, and the threaded rod is disposed on the mounting block. The threaded rod and the movable block are connected to each other. Rotating the threaded rod is used to adjust the position of the movable block on the fixed cylinder. The second adjustment mechanism includes a mounting rod and a connecting rod. The mounting rod is disposed on the movable block and is threadedly connected to the connecting rod. The clamping mechanism is disposed at the end of the connecting rod away from the mounting rod. The relative position between the clamping mechanism and the movable block is adjusted by rotating the connecting rod. The clamping mechanism includes a clamping disc, a slider, and a sliding nut. The clamping disc is threaded to the connecting rod. The clamping disc has several sliding grooves. The slider is disposed in the sliding grooves. The slider is fixed by rotating the sliding nut. The system comprises three threaded rods, each with a segmented thread. These threads engage with the internal threads on the movable block, ensuring that moving a single threaded rod only moves that single movable block. The other two threaded rods limit the movement of the movable block, restricting its movement to the threaded rods. The mounting block and the threaded rods are rotatably connected, so rotating the threaded rods only causes them to rotate around the threaded holes.

2. The eccentricity compensation fixture for a casing according to claim 1, characterized in that: A workbench is provided at the bottom of the base.

3. The eccentricity compensation fixture for a casing according to claim 1, characterized in that: The fixing assembly includes a fixing rod and a fastening bolt. The fixing rod is arranged around the base and connected to the base by the fastening bolt. The fixing rod is provided with a snap-fit ​​groove. The fixing rod is fixed to the base by snapping the snap-fit ​​groove onto the bottom edge of the outer edge of the casing and fixing it with the fastening bolt.

4. The eccentricity compensation fixture for a casing according to claim 1, characterized in that: The connecting rod is provided with a graduated groove.

5. The eccentricity compensation fixture for a casing according to claim 1, characterized in that: The mounting rod has a first fixing hole, and the connecting rod has several second fixing holes corresponding to the first fixing hole. The second adjustment mechanism also includes fixing bolts. When the first fixing hole and the second fixing hole are aligned with each other, the fixing bolts are connected to the first fixing hole and the second fixing hole in sequence to further restrict the relative movement of the mounting rod and the connecting rod.

6. A clamping method, characterized in that: The eccentricity compensation fixture for the casing according to any one of claims 1-5 comprises the following steps: A. Install the base on the workbench and fix the base and the workbench together with bolts. Place the casing on the base and adjust its position so that the center of the casing is collinear with the fixed cylinder. B. Connect the fixing rod to the base, snap it into the bottom edge of the outer edge of the casing through the snap-fit ​​groove, and then fix the fixing rod with the fastening bolts; C. Install the mounting block onto the fixed cylinder, and adjust the height of the moving block by rotating the threaded rod according to the height of the casing hole; D. Adjust the relative positions of the connecting rod and the mounting rod by rotating the connecting rod according to the length from the casing hole to the fixed cylinder; E. Insert the mounting rod into the housing through the housing hole and fix the mounting rod to the moving block; F, after aligning the clamping plate and the connecting rod with each other, rotate the clamping plate to fix the clamping plate and the connecting rod while the clamping block fits into the round hole of the casing; G. Adjust the slider so that it fits against the inner wall of the casing's circular hole. Rotate the sliding nut to adjust and fix the position of the slider, thus completing the clamping process.

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