A high-precision drill press special fixture convenient to use

Abstract

The application discloses a high-precision drilling machine special clamp convenient to use, relates to the technical field of machining, and comprises a drilling machine body and a supporting platform movably installed on the drilling machine body, a clamping mechanism is movably installed on the upper surface of the supporting platform, the clamping mechanism comprises a positioning assembly, a first linear extension component and a supporting assembly, the supporting assembly is slidably connected with the positioning assembly, the first linear extension component is fixedly installed on the supporting assembly, and the supporting assembly comprises a limiting plate, two groups of movable units are movably connected in the limiting plate, the fork-shaped structure composed of the supporting rod and the limiting plate is arranged, the first linear extension component pushes the supporting assembly to move upwards, the fork-shaped structure is attached to the inner wall of a workpiece, reverse supporting force is provided from the inner wall of the workpiece, the downward axial thrust of a drill bit during drilling is effectively offset, the recess deformation of the side wall and the drilling position of the frame-shaped thin-wall workpiece is avoided, and therefore the machining precision of the hole position is remarkably improved.

Description

Technical Field

[0001] This invention belongs to the field of machining technology, specifically relating to a high-precision drilling machine fixture that is easy to use. Background Technology

[0002] A drilling machine is a machine tool mainly used to machine holes in solid materials. Its core working principle is that the workpiece is fixed and the drill bit rotates at high speed while feeding downwards, thereby drilling round holes in materials such as metal and wood. In addition to the most basic drilling, drilling machines can also perform various processing operations such as reaming, boring, countersinking, and tapping after being equipped with special cutting tools.

[0003] A fixture is an auxiliary device specifically designed and manufactured for a particular workpiece or a specific drilling process. It mainly consists of positioning elements and clamping elements. The positioning elements determine the position of the workpiece in the fixture, and the clamping elements push the positioning elements to press the workpiece tightly, preventing the workpiece from loosening or shifting during drilling.

[0004] During drilling, the drill bit generates a huge axial thrust and radial cutting force on the workpiece. For frame-shaped thin-walled workpieces, the thin wall thickness results in poor overall structural rigidity. When the drill bit contacts the workpiece, the pressure of the drill bit can easily bend the frame-shaped thin-walled workpiece. The bending points are mainly concentrated on the vertical side wall of the frame-shaped thin-walled workpiece and the side wall of the frame-shaped thin-walled workpiece that contacts the drill bit. In addition, a certain degree of indentation will also be generated at the contact point between the frame-shaped thin-walled workpiece and the drill bit. At this time, the drill bit is actually cutting in a "deformed" position. Ultimately, this type of frame-shaped thin-walled workpiece is prone to deformation and vibration during drilling, which in turn leads to poor hole position accuracy. Summary of the Invention

[0005] One objective of this invention is to provide a high-precision drilling machine fixture that is easy to use, thereby solving the technical problem in related technologies where frame-shaped thin-walled workpieces are prone to sidewall bending and drilling deformation due to poor structural rigidity under the axial thrust of the drill bit during drilling, resulting in poor hole position accuracy.

[0006] According to an embodiment of the present invention, a user-friendly high-precision drilling machine fixture includes a drilling machine body and a support platform movably mounted on the drilling machine body. A clamping mechanism is movably mounted on the upper surface of the support platform. The clamping mechanism includes a positioning component, a first linear telescopic component, and a support component. The support component is slidably connected to the positioning component. The first linear telescopic component is fixedly mounted on the support component, and its output end is fixedly connected to the support component. The support component includes a limiting plate, and two sets of movable units are movably connected inside the limiting plate. The two sets of movable units are symmetrically arranged, and each set of movable units includes a support rod. The rods are perpendicular to the limiting plate. Two sets of support rods and the limiting plate form a fork-shaped structure. This fork-shaped structure supports the inner wall of the frame-shaped thin-walled workpiece. The output end of the first linear telescopic component is connected to the limiting plate via a horizontally arranged telescopic member. This horizontally arranged telescopic member consists of two slidably connected plates. The end of one plate is fixedly connected to the output end of the first linear telescopic component, and the end of the other plate is fixedly connected to the limiting plate. Therefore, when the first linear telescopic component drives one plate to rise, it also drives the support assembly to rise. Simultaneously, when the support assembly moves laterally, the two plates can... The adaptive sliding mechanism prevents separation and thus does not affect the up-and-down movement of the support assembly driven by the first linear telescopic component. The clamping mechanism is used to determine the position of the frame-shaped thin-walled workpiece. The clamping mechanism is movably mounted on the support platform, which is movably connected to the main body of the drilling machine. In use, after fixing the workpiece with the clamping mechanism, the workpiece is aligned with the drill bit of the main body of the drilling machine by moving the support platform. When fixing the frame-shaped thin-walled workpiece, it is placed onto the two sets of movable units. Then, the first linear telescopic component is activated to push the limit plate upwards. The first linear telescopic component is an electric cylinder. During the upward movement, the two support rods of the movable unit will fit against the inner wall of the frame-shaped thin-walled workpiece. The support rods will support the part of the frame-shaped thin-walled workpiece to be drilled. During subsequent drilling, the drill bit of the drill body moves downward. During this process, the pressure exerted by the drill bit on the frame-shaped thin-walled workpiece will be offset by the support rods, thereby preventing deformation of the side wall of the frame-shaped thin-walled workpiece and the side wall in contact with the drill bit. Furthermore, the fork-shaped structure formed by the support rods and the limiting plate is located at the edge of the drilling part. During the process of the drill bit drilling through the frame-shaped thin-walled workpiece, it can reduce the concavity of the through hole, thereby ensuring the drilling accuracy.

[0007] In a preferred embodiment, one end of the support rod is fixedly connected to a first movable block, the first movable block is slidably connected inside the limiting plate, and a first strip hole is provided at the junction of the limiting plate and the first movable block.

[0008] In a preferred embodiment, a control lever is rotatably mounted inside the limiting plate. The control lever is arranged along the length direction of the limiting plate, and two threaded grooves are symmetrically opened on the surface of the control lever. The first movable block is threadedly connected to the control lever through the threaded grooves.

[0009] In a preferred embodiment, the positioning assembly includes a base, a positioning plate, and a mounting connecting plate. A first linear telescopic component is fixedly installed on one side of the mounting connecting plate, the positioning plate is fixedly installed on one end of the base, and a second linear telescopic component is fixedly installed on one side of the positioning plate. The output end of the second linear telescopic component is fixedly connected to the mounting connecting plate, which is located on one side of the positioning plate.

[0010] In a preferred embodiment, the base is movably mounted on the upper surface of the support platform, and the other end of the base is threadedly connected to a threaded rod. One end of the threaded rod facing the first positioning plate is rotatably connected to a limit block, and the bottom of the limit block is slidably connected to the base.

[0011] In a preferred embodiment, a raised strip is integrally formed on one side of the mounting connecting plate, a baffle is integrally formed between the two raised strips, a limiting plate is slidably connected to the raised strip, and a second strip-shaped hole is provided inside the mounting connecting plate.

[0012] In a preferred embodiment, a second movable block is sleeved on the other end of the support rod, a fixed block is fixedly installed on the rod body of the support rod, a spring is fixedly connected between the fixed block and the second movable block, and a third linear telescopic component is movably installed on the side of the limiting block facing the movable unit.

[0013] In a preferred embodiment, a push rod is fixedly installed on the top of the second movable block, and a driven rod is rotatably installed on the top of the fixed block. One end of the push rod is slidably connected to the driven rod, and a third strip hole is provided at the junction of the driven rod and the push rod. A contact plate is rotatably connected to the end of the driven rod.

[0014] In a preferred embodiment, extension rods are integrally formed on both sides of the contact plate. The extension rods are located on both sides of the second movable block and are slidably engaged with the second movable block. A transverse guide sleeve is slidably connected between the two extension rods and fits against the second movable block.

[0015] In a preferred embodiment, the contact plate has a receiving groove inside, a third linear telescopic component is fixedly installed on the inner wall of the receiving groove, a movable plate is fixedly connected to the output end of the third linear telescopic component, and a squeezing plate is provided on both sides of the receiving groove. The squeezing plate is in contact with the movable plate, and an airbag is provided between the squeezing plate and the receiving groove.

[0016] The beneficial effects of this invention are: 1. The present invention sets up a fork-shaped structure composed of a support rod and a limiting plate. The first linear telescopic component pushes the support assembly to move upward, so that the fork-shaped structure fits against the inner wall of the workpiece and provides a reverse support force from the inner wall of the workpiece. This effectively counteracts the downward axial thrust of the drill bit during drilling, avoids the concave deformation of the side wall of the frame-shaped thin-walled workpiece and the drilling part, and thus significantly improves the machining accuracy of the hole.

[0017] 2. This invention solves the problem that the support rod cannot effectively reinforce workpieces with protruding structures by setting a deformable structure composed of a driven rod and a push rod. When encountering a protruding structure on the workpiece, it can push the contact plate upward so that the contact plate contacts the protruding structure. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a front view of the present invention.

[0020] Figure 3 This is a three-dimensional structural diagram of the clamping mechanism of the present invention.

[0021] Figure 4 This is a schematic diagram of the planar structure of the support component of the present invention.

[0022] Figure 5 This is a schematic diagram showing the disassembled structure of the positioning plate and the mounting connection plate of the present invention.

[0023] Figure 6 This is a schematic diagram showing the disassembled structure of the limiting plate and the movable unit of the present invention.

[0024] Figure 7 This is a schematic diagram of the planar structure of the support rod, driven rod, and arc rod of the present invention.

[0025] Figure 8 This is a schematic diagram of the internal structure of the support rod of the present invention.

[0026] Figure 9 This is a schematic diagram of the contact plane structure between the contact plate and the workpiece according to the present invention.

[0027] Figure 10 This is a schematic diagram of the planar structure of the movable plate, airbag, and compression plate of the present invention.

[0028] In the diagram: 1. Drilling machine body; 2. Support platform; 3. Clamping mechanism; 31. Base; 32. Positioning plate; 33. Mounting connection plate; 34. First linear telescopic component; 35. Threaded rod; 36. Limiting block; 37. Support assembly; 371. Limiting plate; 372. Control lever; 373. Protrusion; 374. First movable block; 375. First slotted hole; 376. Threaded groove; 38. Movable unit; 381. Support rod; 382. Second movable block 383. Spring; 384. Fixed block; 385. Driven rod; 386. Contact plate; 387. Movable plate; 388. Extension rod; 389. Push rod; 3810. Third strip hole; 3811. Receiving groove; 3812. Extrusion plate; 3813. Transverse guide sleeve; 3814. Airbag; 3815. Elastic connector; 39. Baffle; 310. Second strip hole; 311. Second linear telescopic component; 312. Third linear telescopic component. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0030] Example 1 like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a user-friendly high-precision drilling machine fixture includes a drilling machine body 1 and a support platform 2 movably mounted on the drilling machine body 1. A clamping mechanism 3 is movably mounted on the upper surface of the support platform 2. The clamping mechanism 3 includes a positioning component, a first linear telescopic component 34, and a support component 37. The support component 37 is slidably connected to the positioning component. The first linear telescopic component 34 is fixedly mounted on the support component 37. The support component 37 includes a limiting plate 371. Two sets of movable units 38 are movably connected inside the limiting plate 371. The two sets of movable units 38 are symmetrically arranged. Each set of movable units 38 includes a support rod 381. The support rod 381 is perpendicular to the limiting plate 371. The two sets of support rods 381 and the limiting plate 371 form a fork-shaped structure. The fork-shaped structure is used to support the inner wall of the frame-shaped thin-walled workpiece. The output end of the first linear telescopic component 34 is connected to the limiting plate 371 through a horizontally arranged telescopic component.

[0031] It should be noted that the horizontally arranged telescopic component consists of two slidably connected plates. The end of one plate is fixedly connected to the output end of the first linear telescopic component 34, and the end of the other plate is fixedly connected to the limiting plate 371. Thus, when the first linear telescopic component 34 drives one plate to rise, causing the other plate to rise, the support assembly 37 can also rise. Simultaneously, when the support assembly 37 moves laterally, the two plates can slide adaptively without separating, thus not affecting the vertical movement of the support assembly 37 driven by the first linear telescopic component 34. The clamping mechanism 3 is used to determine the position of the frame-shaped thin-walled workpiece. The clamping mechanism 3 is movably mounted on the support platform 2, which is movably connected to the drilling machine body 1. In use, after fixing the workpiece with the clamping mechanism 3, the workpiece is aligned with the drill bit of the drilling machine body 1 by moving the support platform 2. When drilling thin-walled workpieces, the frame-shaped thin-walled workpiece is placed on the two sets of movable units 38. Then, the first linear telescopic component 34 is activated to push the limiting plate 371 upward. The first linear telescopic component 34 is an electric cylinder. During the upward movement of the support assembly 37, the two support rods 381 of the movable unit 38 will fit against the inner wall of the frame-shaped thin-walled workpiece. The support rods 381 support the part of the frame-shaped thin-walled workpiece to be drilled. During subsequent drilling, the drill bit of the drill body 1 moves downward. During this process, the pressure applied by the drill bit to the frame-shaped thin-walled workpiece will be offset by the support rods 381, thereby preventing deformation of the side wall of the frame-shaped thin-walled workpiece and the side wall in contact with the drill bit. Furthermore, the fork-shaped structure formed by the support rods 381 and the limiting plate 371 is located at the edge of the drilling part. During the process of the drill bit drilling through the frame-shaped thin-walled workpiece, it can reduce the concavity of the through hole, thereby ensuring the drilling accuracy.

[0032] Furthermore, such as Figure 2 and Figure 3 As shown, one end of the support rod 381 is fixedly connected to a first movable block 374. The first movable block 374 is slidably connected inside the limiting plate 371. A first strip hole 375 is provided at the junction of the limiting plate 371 and the first movable block 374. A control rod 372 is rotatably installed inside the limiting plate 371. The control rod 372 is set along the length direction of the limiting plate 371. Two threaded grooves 376 are symmetrically provided on the surface of the control rod 372. The first movable block 374 is threadedly connected to the control rod 372 through the threaded grooves 376.

[0033] It should be noted that the size of the through hole varies depending on the drilling requirements. By rotating the control lever 372, the position of the first movable block 374 is adjusted through the threaded groove 376. Since the two threaded grooves 376 are in opposite directions, the movement directions of the two first movable blocks 374 are also opposite. When the two first movable blocks 374 are close to each other, the distance between the two support rods 381 is smaller, which can accommodate smaller through holes. When the two first movable blocks 374 are far apart, the distance between the two support rods 381 is larger, which can accommodate larger through holes. The first strip hole 375 determines the position of the first movable block 374 and also prevents the first movable block 374 from rotating with the control lever 372.

[0034] Example 2 like Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the positioning assembly includes a base 31, a positioning plate 32, and a mounting connecting plate 33. A first linear telescopic component 34 is fixedly installed on one side of the mounting connecting plate 33. The positioning plate 32 is fixedly installed on one end of the base 31. A second linear telescopic component 311 is fixedly installed on one side of the positioning plate 32. The output end of the second linear telescopic component 311 is fixedly connected to the mounting connecting plate 33. The mounting connecting plate 33 is located on one side of the positioning plate 32. The base 31 is movably installed on the upper surface of the support platform 2. A threaded rod 35 is threadedly connected to the other end of the base 31. A limit block 36 is rotatably connected to one end of the threaded rod 35 facing the first positioning plate 32. The bottom of the limit block 36 is slidably connected to the base 31. A protrusion 373 is integrally formed on one side of the mounting connecting plate 33. A baffle 39 is integrally formed between the two protrusions 373. The limit plate 371 is slidably connected to the protrusion 373. A second strip-shaped hole 310 is opened inside the mounting connecting plate 33.

[0035] It should be noted that the positioning plate 32 is used to determine the position of the mounting connecting plate 33, the mounting connecting plate 33 determines the position of the first linear telescopic component 34, and the second linear telescopic component 311 is used to push the mounting connecting plate 33. The second linear telescopic component 311 is an electric cylinder and is horizontally set to adjust the horizontal position of the support assembly 37 and the movable unit 38. After the support assembly 37 and the movable unit 38 determine the position of the frame-shaped thin-walled workpiece, the threaded rod 35 is rotated, which drives the limiting block 36 along the direction of the base 31 toward the first positioning plate 32. The first linear telescopic component 34 moves in the direction of the first linear telescopic component 34 and pushes the mounting connecting plate 33 to clamp and fix the thin-walled or tubular workpiece from the long axis. The protrusion 373 provided on the mounting connecting plate 33 is used to determine the movement path of the limiting plate 371. The protrusion 373 is trapezoidal to prevent the limiting plate 371 from detaching from the protrusion 373. The baffle 39 between the two protrusions 373 is used to determine the maximum rising height of the limiting plate 371. The second strip hole 310 in the mounting connecting plate 33 is used to accommodate the telescopic component connecting the first linear telescopic component 34 and the limiting plate 371.

[0036] Example 3 like Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, in order to improve the stability of splicing with other workpieces and ensure the structural strength of the splicing parts, some frame-shaped thin-walled workpieces usually have protruding structures at the jointing parts. At this time, holes need to be made in these protruding structures to install connecting parts. The support rod 381 cannot support and reinforce the rectangular protruding structure. In order to ensure that the support rod 381 can support the protruding structure of the frame-shaped thin-walled workpiece, this application further provides the following technical solution.

[0037] When the top wall of the protruding structure is a flat structure, this embodiment adopts the following scheme: the other end of the support rod 381 is fitted with a second movable block 382, ​​a fixing block 384 is fixedly installed on the rod body of the support rod 381, a spring 383 is fixedly connected between the fixing block 384 and the second movable block 382, ​​a third linear telescopic component 312 is movably installed on the side of the limiting block 36 facing the movable unit 38, a push rod 389 is fixedly installed on the top of the second movable block 382, ​​a driven rod 385 is rotatably installed on the top of the fixing block 384, one end of the push rod 389 is slidably connected to the driven rod 385, a third strip hole 3810 is opened at the junction of the driven rod 385 and the push rod 389, and a contact plate 386 is rotatably connected to the end of the driven rod 385. Both sides of the 86 are integrally formed with extension rods 388. The two extension rods 388 are located on both sides of the second movable block 382. A transverse guide sleeve 3813 is slidably connected between the two extension rods 388. The transverse guide sleeve 3813 fits against the second movable block 382 and can slide laterally along the length of the second movable block 382. The inside of the contact plate 386 is provided with a receiving groove 3811. An elastic connector 3815 is fixedly installed inside the receiving groove 3811. A movable plate 387 is fixedly connected to the top of the elastic connector 3815. Both sides of the receiving groove 3811 are provided with extrusion plates 3812. The extrusion plates 3812 fit against the movable plate 387. An airbag 3814 is provided between the extrusion plates 3812 and the receiving groove 3811.

[0038] It should be noted that the output end of the third linear telescopic component 312 is fixedly connected to a rod whose shape matches the second movable block 382, ​​and the rod has a circular hole whose shape matches the support rod 381. The third linear telescopic component 312 pushes the second movable block 382 through the rod, which is only one driving method of this application. In actual use, other methods can be used, as long as they can drive the second movable block 382 to move along the support rod 381. The connection method between the third linear telescopic component 312 and the limiting block 36 can be referred to the support rod 381. The connection between 81 and the limiting plate 371 only requires the free movement of the third linear telescopic component 312, which can be aligned with the second movable block 382 if necessary. When a rectangular protruding structure needs to be supported, the third linear telescopic component 312 on the limiting block 36 is first adjusted to be coaxial with the support rod 381. The third linear telescopic component 312 is an electric cylinder. When the piston rod of the third linear telescopic component 312 extends, it pushes the second movable block 382. The second movable block 382 drives the push rod 389. Since the push rod 389 is rotatably connected to the driven rod 385, and the driven rod... A third strip-shaped hole 3810 is provided at the connection between push rod 385 and push rod 389. As push rod 389 moves with the second movable block 382, ​​its connection with driven rod 385 moves along the third strip-shaped hole 3810, changing the angle of driven rod 385 through the hole wall. Since one end of driven rod 385 is rotatably connected to fixed block 384, and the angle of push rod 389 is fixed, driven rod 385 rotates around its connection point with fixed block 384, thereby raising the height of contact plate 386 and contacting... The extension rods 388 on both sides of plate 386 slide in contact with the second movable block 382. At the same time, the transverse guide sleeve 3813 between the two extension rods 388 is engaged with the second movable block 382 to limit the angle of the contact plate 386, ensuring that the contact plate 386 is always in a horizontal state. After the top of the contact plate 386 contacts the rectangular protruding structure, its upward thrust will continue to drive the entire frame-shaped thin-walled workpiece, thereby causing the bottom of the frame-shaped thin-walled workpiece to contact the straight rod at the bottom of the mounting connecting plate 33, thus completing the automatic positioning of the frame-shaped thin-walled workpiece. Furthermore, when the top wall of some protruding structures is set to be arc-shaped according to usage requirements, this embodiment also provides the following solution: the air inlet end of the airbag 3814 is connected to an external air supply device; multiple movable plates 387 are provided, and the movable plates 387 are arranged along the width direction of the contact plate 386 and fit together with each other; each movable plate 387 is supported by an elastic connector 3815; the elastic connector 3815 consists of a thick hollow rod, a thin hollow rod, and a spring; the two ends of the spring are respectively connected to the inner wall of the thin hollow rod and the thick hollow rod. The hollow rod is fixedly connected to the inner wall. The movable plate 387 contacts the arc-shaped part under the support of the elastic connector 3815. After contact, it inflates the airbag 3814. The expansion of the airbag 3814 pushes the extrusion plate 3812. The two extrusion plates 3812 apply extrusion force in opposite directions to the movable plate 387, thereby increasing the friction coefficient between the two movable plates 387 and fixing the height of the movable plate 387. While providing support, it can also adapt to the arc shape of the protruding structure.

[0039] It should be noted that the above-mentioned method of using airbag 3814 for inflation mainly relies on air as a fluid for filling. Using air is only one of the methods used in this embodiment. At the same time, when necessary, liquid media that can withstand and provide higher pressure, such as water or hydraulic oil, can also be used. In addition, the number of movable plates 387 in the attached drawings is set to a small number for the convenience of showing the structure. In fact, more movable plates 387 can be set. Multiple movable plates 387 can contact the protruding structure to improve the support effect.

[0040] Working principle of the invention: In use, first, the frame-shaped thin-walled workpiece is placed on the two sets of movable units 38. Then, the first linear telescopic component 34 is activated, which pushes the support component 37 upward, so that the two support rods 381 fit against the inner wall of the workpiece to provide internal support, thereby offsetting the downward pressure of the drill bit during drilling and preventing deformation of the workpiece sidewall. At the same time, through the cooperation of the second linear telescopic component 311 and the threaded rod 35, the limiting block 36 and the mounting connecting plate 33 are driven to move relative to each other, thereby clamping and fixing the workpiece from the long axis. Finally, the support platform 2 is moved, and the part of the workpiece to be drilled is precisely aligned with the drill bit of the drilling machine body 1 for processing.

[0041] To meet the requirements of different sized through holes, the operator can rotate the control lever 372. Since the two threaded grooves 376 symmetrically opened on the surface of the control lever 372 are in opposite directions, they will drive the two first movable blocks 374 to move in opposite directions, thereby changing the distance between the two support rods 381. In this process, the first strip hole 375 not only determines the position of the first movable block 374, but also effectively prevents it from rotating with the control lever 372, ensuring the adaptability of the hole diameter and the stability of the structure.

[0042] During the operation of the clamping mechanism, the trapezoidal protrusions 373 on the mounting connecting plate 33 provide a sliding guide path for the limiting plate 371 and prevent it from disengaging. The baffle 39 between the two protrusions 373 is used to limit the maximum rising height of the limiting plate 371. In addition, the first strip hole 375 in the mounting connecting plate 33 provides a space for the connection of the first linear telescopic component 34, ensuring that the components do not interfere with each other.

[0043] When the workpiece has a protruding structure in the middle due to docking, the support rod 41 cannot enter the inside of the protruding structure to support it. The third linear telescopic component 312 on the limiting block 36 is adjusted to be coaxial with the support rod 381. When the piston rod of the third linear telescopic component 312 extends, it pushes the second movable block 382 through the rod body. The second movable block 382 changes the angle of the driven rod 385 through the push rod 389. The driven rod 385 will rotate around the connection point with the fixed block 384, thereby raising the height of the contact plate 386. The transverse guide sleeve 3813 between the two extension rods 388 fits with the second movable block 382, ​​limiting the angle of the contact plate 386 to ensure that the contact plate 386 is always in a horizontal state. After the top of the contact plate 386 contacts the protruding structure, its upward thrust will continue to drive the entire frame-shaped thin-walled workpiece, so that the bottom of the frame-shaped thin-walled workpiece contacts the straight rod at the bottom of the mounting connecting plate 33, thereby completing the automatic positioning of the frame-shaped thin-walled workpiece.

[0044] When the protruding structure is set to be arc-shaped as required, the air inlet of the airbag 3814 is connected to the external air supply equipment before drilling. The movable plate 387 contacts the arc-shaped part under the support of the elastic connector 3815. After contact, air is inflated into the airbag 3814. The expansion of the airbag 3814 after inflation is used to push the extrusion plate 3812. The two extrusion plates 3812 apply extrusion force in opposite directions to the movable plate 387, thereby increasing the friction coefficient between the two movable plates 387 and fixing the height of the movable plate 387. The movable plate 387 can not only provide support, but also adapt to the shape of the arc-shaped part of the protruding structure.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A user-friendly, high-precision drilling machine fixture, comprising a drilling machine body (1) and a support platform (2) movably mounted on the drilling machine body (1), characterized in that, The upper surface of the support platform (2) is movably mounted with a clamping mechanism (3). The clamping mechanism (3) includes a positioning component, a first linear telescopic component (34), and a support component (37). The support component (37) is slidably connected to the positioning component, and the first linear telescopic component (34) is fixedly mounted on the support component (37). The support component (37) includes a limiting plate (371), and two sets of movable units (38) are movably connected inside the limiting plate (371). The two sets of movable units (38) are symmetrically arranged, and each set of movable units (38) includes a support rod (381). The support rod (381) is perpendicular to the limiting plate (371). The two sets of support rods (381) and the limiting plate (371) form a fork structure. The fork structure is used to support the inner wall of the frame-shaped thin-walled workpiece. The output end of the first linear telescopic component (34) is connected to the limiting plate (371) through a horizontally arranged telescopic component.

2. The easy-to-use high-precision drilling machine fixture according to claim 1, characterized in that, One end of the support rod (381) is fixedly connected to a first movable block (374), which is slidably connected inside the limiting plate (371). A first strip hole (375) is provided at the junction of the limiting plate (371) and the first movable block (374).

3. The easy-to-use high-precision drilling machine fixture according to claim 1, characterized in that, The control lever (372) is rotatably installed inside the limiting plate (371). The control lever (372) is arranged along the length direction of the limiting plate (371). Two threaded grooves (376) are symmetrically opened on the surface of the control lever (372). The first movable block (374) is threadedly connected to the control lever (372) through the threaded grooves (376).

4. The easy-to-use high-precision drilling machine fixture according to claim 2, characterized in that, The positioning assembly includes a base (31), a positioning plate (32), and a mounting connecting plate (33). A first linear telescopic component (34) is fixedly installed on one side of the mounting connecting plate (33), and the positioning plate (32) is fixedly installed on one end of the base (31). A second linear telescopic component (311) is fixedly installed on one side of the positioning plate (32). The output end of the second linear telescopic component (311) is fixedly connected to the mounting connecting plate (33), and the mounting connecting plate (33) is located on one side of the positioning plate (32).

5. A user-friendly, high-precision drilling machine fixture according to claim 3, characterized in that, The base (31) is movably installed on the upper surface of the support platform (2). The other end of the base (31) is threadedly connected to a threaded rod (35). One end of the threaded rod (35) facing the first positioning plate (32) is rotatably connected to a limit block (36). The bottom of the limit block (36) is slidably connected to the base (31).

6. The easy-to-use high-precision drilling machine fixture according to claim 1, characterized in that, The mounting connecting plate (33) has a protrusion (373) integrally formed on one side, and a baffle (39) integrally formed between the two protrusions (373). The limiting plate (371) is slidably connected to the protrusion (373), and a second strip hole (310) is opened inside the mounting connecting plate (33).

7. The easy-to-use high-precision drilling machine fixture according to claim 1, characterized in that, The other end of the support rod (381) is fitted with a second movable block (382). A fixed block (384) is fixedly installed on the rod body of the support rod (381). A spring (383) is fixedly connected between the fixed block (384) and the second movable block (382). A third linear telescopic component (312) is movably installed on the side of the limiting block (36) facing the movable unit (38).

8. A user-friendly, high-precision drilling machine fixture according to claim 6, characterized in that, A push rod (389) is fixedly installed on the top of the second movable block (382), and a driven rod (385) is rotatably installed on the top of the fixed block (384). One end of the push rod (389) is slidably connected to the driven rod (385). A third strip hole (3810) is provided at the junction of the driven rod (385) and the push rod (389). A contact plate (386) is rotatably connected to the end of the driven rod (385).

9. A user-friendly, high-precision drilling machine fixture according to claim 8, characterized in that, Both sides of the contact plate (386) are integrally formed with extension rods (388). The extension rods (388) are located on both sides of the second movable block (382), and the extension rods (388) are slidably engaged with the second movable block (382). A transverse guide sleeve (3813) is slidably connected between the two extension rods (388), and the transverse guide sleeve (3813) is in contact with the second movable block (382).

10. A user-friendly, high-precision drilling machine fixture according to claim 9, characterized in that, The contact plate (386) has an internal receiving groove (3811). An elastic connector (3815) is fixedly installed on the inner wall of the receiving groove (3811). A movable plate (387) is fixedly connected to the top of the elastic connector (3815). A pressing plate (3812) is provided on both sides of the receiving groove (3811). The pressing plate (3812) is in contact with the movable plate (387). An airbag (3814) is provided between the pressing plate (3812) and the receiving groove (3811).

Images