A hole making tool for end frame or middle frame

Abstract

The application discloses a kind of hole making tool for end frame or middle frame, including: support, base body, mould, drilling mechanism.The application is supported by the support rolling element on base body to workpiece, limiting piece is used to position and limit the inner side of workpiece, so workpiece can be manually driven to rotate around base body under the action of support rolling element and limiting piece, and rotation is stable and reliable;After the adjustment of roller positioning element, the distance between horizontal drilling element and the vertical direction of roller positioning element corresponds to the distance between riveting hole on mould and riveting hole on workpiece, then by driving horizontal drilling element to drill, it can be drilled and formed at one time, and there will be no deviation;Then drive workpiece to rotate around base body, the next hole on workpiece can be continuously machined, continuous drilling is realized, and under the action of roller positioning element, the uniformly processed holes are uniform, improve drilling precision, and also improve drilling speed.

Description

Technical Field

[0001] This invention relates to the field of hole-making tooling technology, and specifically to a hole-making tooling for end frames or middle frames. Background Technology

[0002] The description of the background art in this invention pertains to related technologies and is used merely for illustration and to facilitate understanding of the invention. It should not be construed as the applicant explicitly believing or presuming that the invention was prior art on the filing date of the first application.

[0003] Currently, the maximum diameter of rocket hull end frames and middle frames is generally classified into three types according to national regulations: Φ3346, Φ3800, and Φ4200. The existing method for drilling holes in the riveting surfaces of the end and middle frames generally uses a film-applying method. Traditionally, the end and middle frames are annular structures, divided into four arcs according to quadrants. The annular surfaces of the end and middle frames are unfolded into planes. A 1mm thick stainless steel plate is placed on a laser cutting machine to cut out the shape of the riveting surface as a template. This template is then attached to the riveting surfaces of the end and middle frames and fixed with clamps. A marker is then used to mark the holes on the template. The template is then removed, and finally, drilling tools such as a pneumatic drill are used to drill the riveting holes marked on the middle and end frames. Because the template is very thin, to prevent damage during drilling, the drill bit cannot be directly passed through the template holes to drill the riveting holes on the middle and end frames. The following defects exist when drilling holes in the existing end frame and middle frame:

[0004] (1) Because the hole making is carried out by marking points, the hole making is entirely based on the naked eye, resulting in low hole making accuracy;

[0005] (2) Slow hole-making speed. Summary of the Invention

[0006] The purpose of this invention is to provide a hole-making fixture for end frames or middle frames, so as to solve the problems of low hole-making accuracy and slow hole-making speed when making holes in end frames or middle frames.

[0007] The technical solution of the present invention to solve the above-mentioned technical problems is as follows:

[0008] A hole-making fixture for end frames or middle frames includes: a bracket, a base body, a mold, and a drilling mechanism. The base body is connected to the top of the bracket, the drilling mechanism is connected to the top outer edge of the base body, the workpiece is placed on the supporting rolling element of the base body, and the inner side of the workpiece is positioned by the limiting element in the base body. The mold is connected to the top of the workpiece.

[0009] After the roller positioning components in the drilling mechanism position the same row of positioning holes on the mold in sequence, the horizontal drilling component in the drilling mechanism drills a row of holes at the corresponding position of the workpiece.

[0010] The workpiece of this invention is the end frame or middle frame of an existing rocket cabin. Supporting rolling elements on the base body support the end frame or middle frame, and limiting elements are used to position and limit the inner surface of the end frame or middle frame. Therefore, the end frame or middle frame can be manually driven to rotate around the base body under the action of the supporting rolling elements and limiting elements, and the rotation is stable and reliable, facilitating real-time adjustment of the position of the end frame or middle frame. Roller positioning elements are used to contact and position the mold. After the roller positioning elements are adjusted, the vertical distance between the horizontal drilling element and the roller positioning element corresponds to the distance between the positioning hole on the mold and the riveting hole to be processed on the end frame and middle frame. Then, by driving the horizontal drilling element to perform the drilling action, a hole can be drilled in one go without deviation. After processing one hole, the end frame or middle frame can be driven to rotate around the base body to continue processing the next hole above or below the end frame or middle frame, achieving continuous drilling of a row of holes. When multiple rows of holes need to be drilled, only the positions of the roller positioning elements and the horizontal drilling elements need to be adjusted. The roller positioning component ensures that the continuously machined holes are uniform and consistent, without any positional deviation, thus improving drilling accuracy and increasing drilling speed.

[0011] Furthermore, the aforementioned drilling mechanism also includes a support connector connected to the top outer edge of the base body, a vertical stand set on the support connector, and a lifting component that slides vertically with the stand. The horizontal drilling component slides laterally with the lifting component. The drilling component in the horizontal drilling component corresponds to the roller positioning component. After the roller positioning component is positioned with the positioning hole of the mold, it pushes the horizontal drilling component to drill at the corresponding position of the workpiece.

[0012] The roller positioning component includes a positioning seat connected to the lifting component, an adjusting screw rotatably connected to the top of the positioning seat, a positioning block threadedly connected to the adjusting screw, and an adjusting rod connected to the top of the positioning seat and parallel to the adjusting screw. The adjusting rod slides with the positioning block, and the positioning block is provided with a positioning component corresponding to the drilling component.

[0013] The support connector of this invention is easy to engage with the outer edge of the base body to achieve overall fixation of the drilling mechanism. The lifting component moves up and down along the upright to adjust the position of the roller positioning component and the horizontal drilling component. The adjusting screw in the roller positioning component is rotatably engaged with the top of the positioning seat, and the positioning block is slidably engaged with the adjusting rod. At the same time, the positioning block is threadedly connected to the adjusting screw. Under the action of the adjusting screw, the positioning block and the adjusting rod, the function of the screw module is realized. By rotating the adjusting screw, the positioning block and the positioning component can be driven to move up and down along the adjusting screw and the adjusting rod, thereby further finely adjusting the distance between the positioning component and the drilling component, and enabling the positioning component to make positioning contact with the mold, which facilitates the drilling operation of the drilling component.

[0014] Furthermore, the above-mentioned mold includes multiple arc-shaped pieces, a connector for connecting adjacent arc-shaped pieces, all arc-shaped pieces are combined to form a ring, and the ring is installed on the top of the workpiece, and at least one arc-shaped piece has a connecting block at its bottom for connecting with the top of the workpiece.

[0015] The outer wall of the ring is surrounded by a template, and there are multiple positioning holes distributed in a ring on the template. The positioning component is used to abut against the positioning holes.

[0016] All the arc-shaped pieces of the present invention are connected to form a ring. The ring is installed on the top of the workpiece and connected to the workpiece through a connecting block. When the workpiece is driven to rotate around the base body, the workpiece and the mold as a whole can rotate together. When the positioning component positions the mold, no displacement will occur, which facilitates continuous drilling.

[0017] Furthermore, the positioning block is provided with a horizontal through hole, and the positioning assembly includes a positioning screw, a spring and a positioning rod distributed along the axial direction of the horizontal through hole. The two ends of the spring are in contact with the positioning screw and the positioning rod respectively. The positioning screw is threadedly connected to the horizontal through hole, and the end of the positioning rod away from the spring is equipped with a ball corresponding to the drilling component.

[0018] This invention adjusts the position of the drilling components in the roller positioning component and the horizontal drilling component using a lifting component. Then, by rotating the adjusting screw, the positioning block and positioning assembly move up and down along the adjusting screw and adjusting rod, further adjusting the distance between the positioning assembly and the drilling component, and aligning the ball bearing with the positioning hole on the template. At this point, rotating the positioning screw compresses the spring and pushes out the positioning rod and ball bearing, causing the ball bearing to contact the positioning hole. The positioning screw restricts the spring's return to its original position, while simultaneously applying pressure to the ball bearing. This causes the horizontal drilling component to slide laterally along the lifting component to drill the workpiece, and also causes the workpiece and mold to rotate around the base body. Under pressure, the ball bearing can roll into the next hole on the template, enabling continuous drilling of the workpiece, increasing drilling speed, and ensuring that each hole's position corresponds to the others.

[0019] Furthermore, the aforementioned base body includes a base plate connected to the top of the support and a fixed plate connected to the top of the base plate and coaxially arranged with the base plate, and the support connector is snapped into the edge of the base plate;

[0020] The fixed plate includes a support ring connected to the top of the base plate and a circular ring connected to the top of the support ring, wherein the central axis of the support ring coincides with the central axis of the central hole on the base plate;

[0021] The limiting members are provided in multiple rings distributed along the inner edge of the fixed plate. The supporting rolling members include multiple first rolling parts and multiple second rolling parts. All the first rolling parts are distributed in rings on the inner edge of the ring, and all the second rolling parts are distributed in rings on the outer edge of the ring.

[0022] Furthermore, the aforementioned limiting member includes an L-shaped connecting plate connected to the inner edge of the ring and a horizontal limiting member connected to the L-shaped connecting plate for positioning the inner side of the end frame or middle frame. The vertical connecting part of the L-shaped connecting plate is located near the inner edge of the ring.

[0023] The horizontal limiting component includes an upper connecting plate and a lower connecting plate symmetrically connected to the outer side wall of the vertical connecting part, and a limiting wheel rotatably connected between the upper connecting plate and the lower connecting plate. The limiting wheel rotates in the horizontal direction, and the outer edge of the limiting wheel is tangent to the inner ring of the workpiece.

[0024] Furthermore, the aforementioned support connector includes a support plate, an L-shaped pin seat connected to the bottom wall of the end of the support plate, and a fastening screw threaded onto the transverse connecting portion of the L-shaped pin seat. The L-shaped pin seat and the bottom of the support plate form an installation cavity, and the support is connected to the top of the support plate.

[0025] The mounting cavity formed by the L-shaped pin seat and the bottom of the support plate of the present invention facilitates the mating with the outer edge of the base plate, and the outer edge of the base plate is pressed together by fastening screws, thereby realizing a detachable connection between the support connector and the base plate, and the connection structure is simple and reliable.

[0026] Furthermore, the aforementioned lifting component includes a slide rail vertically connected to the stand, a slide plate that slides vertically with the slide rail, and a limiting block connected to the stand and located at the top of the slide rail. The back side of the slide plate is connected to a first slider that cooperates with the slide rail. A guide screw is threaded onto the limiting block, and the guide screw passes through the limiting block and rotates with the slide plate. The end of the slide plate is connected to a positioning seat.

[0027] In this invention, the sliding plate slides along the slide rail via a first slider. A limiting block is located at the top of the slider to limit the sliding position of the first slider. A guide screw is provided on the limiting block, and the end of the guide screw is rotatably engaged with the sliding plate. By rotating the guide screw, the sliding plate is driven to move up and down along the stand. At the same time, the guide screw and the limiting block are threaded together to prevent the sliding plate from moving, making the structure reliable.

[0028] Furthermore, the aforementioned horizontal drilling component also includes a horizontal sliding plate that slides laterally with the sliding plate and a clamping assembly disposed on the horizontal sliding plate. The drilling component is placed on the horizontal sliding plate and clamped by the clamping assembly.

[0029] The clamping assembly includes a first clamping block connected to a horizontal slide plate and a second clamping block located on top of the first clamping block. The drilling component is locked by the first clamping block and the second clamping block.

[0030] The present invention uses locking blocks one and two in the locking assembly to lock the drilling component, and pushes the horizontal sliding plate to slide along the sliding plate to drive the drilling component to perform drilling action, which is simple and convenient to operate.

[0031] Furthermore, a pusher is provided at the end of the upper horizontal slide plate, and a pusher is connected to the pusher;

[0032] The horizontal sliding plate has a through groove corresponding to the side wall of the drilling component. A movable block is installed in the through groove. A clamping rod is connected to the top of the movable block. A clamping bolt is threaded to the side wall of the push seat. The clamping bolt passes through the push seat and the through groove and abuts against the outer wall of the movable block.

[0033] This invention utilizes a rotating clamping bolt. The clamping bolt rotates around the push seat and extends into the through groove to further contact the movable block, thereby pushing the movable block to move within the through groove until the clamping rod contacts and abuts against the side wall of the drilling component. Through the movable block, clamping rod, clamping bolt, and locking assembly, multi-directional clamping of the drilling component is achieved, preventing positional deviations during subsequent drilling and enabling precise drilling.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 1. The present invention discloses a hole-making fixture for an end frame or middle frame. The workpiece is an end frame or middle frame of an existing rocket cabin. Multiple supporting rolling elements on the base body support the end frame or middle frame, and multiple limiting elements are used to position and limit the inner side of the end frame or middle frame. This can distribute the force and reduce the deformation of the end frame or middle frame. It is easy to manually drive the end frame or middle frame to rotate around the base body under the action of the supporting rolling elements and limiting elements. The rotation is stable and reliable, and it is easy to adjust the position of the end frame or middle frame in real time.

[0036] 2. The positioning component in the roller positioning part of the present invention is used to contact and position with the positioning hole on the template in the mold. After the positioning component is adjusted, the vertical distance between the horizontal drilling part and the positioning component corresponds to the distance between the positioning hole on the template and the hole on the end frame and the middle frame. Then, by pushing the horizontal drilling part to perform the drilling action, the hole can be drilled in one go without deviation.

[0037] 3. After the previous hole is drilled, the present invention can further drive the end frame or middle frame to rotate around the supporting rolling element. Under the action of spring pressure, the ball in the positioning component can roll into the next positioning hole on the template, and then push the horizontal drilling component to drill, realizing continuous drilling of the end frame or middle frame, improving the drilling speed. Under the action of the positioning component in the roller positioning component, the continuously processed holes are uniform and consistent, and at the same time, it can ensure that the position of each drilled hole corresponds to each other and there is no positional deviation, thus improving the drilling accuracy and drilling speed. Attached Figure Description

[0038] Figure 1 A schematic diagram of the overall structure of the hole-making fixture;

[0039] Figure 2 This is a structural diagram of the support frame and base body;

[0040] Figure 3 This is a schematic diagram of the base body.

[0041] Figure 4 for Figure 3 A magnified structural diagram of part A;

[0042] Figure 5 This is a structural schematic diagram of the limiting component;

[0043] Figure 6 This is a schematic diagram of the cross-section of the end frame mounted on the rotating base.

[0044] Figure 7 This is a structural schematic diagram of the cross-section of the middle frame mounted on the rotating base;

[0045] Figure 8 This is a schematic diagram of the mold structure;

[0046] Figure 9 for Figure 8 A schematic diagram of the enlarged structure of part B;

[0047] Figure 10 for Figure 8 A magnified structural diagram of section C;

[0048] Figure 11 This is a schematic diagram of the drilling mechanism;

[0049] Figure 12 A schematic diagram of the roller positioning component;

[0050] Figure 13 This is a cross-sectional view of the positioning component.

[0051] Figure 14 This is a structural schematic diagram of the support connector;

[0052] Figure 15 A structural schematic diagram of the lifting component.

[0053] Figure 16 This is a structural schematic diagram of a horizontal drilling component;

[0054] Figure 17 This is a schematic diagram of the drilling mechanism during drilling.

[0055] In the diagram: 100-Bracket, 200-Base body, 210-Base plate, 211-Center hole, 220-Fixing plate, 221-Support ring, 222-Ring, 230-Limiting component, 231-L-shaped connecting plate, 2311-Vertical connecting part, 232-Upper connecting plate, 233-Lower connecting plate, 234-Limiting wheel, 240-Support rolling component, 241-First rolling part, 242-Second rolling part, 300-Mold, 310-Arc-shaped piece, 311-Connecting block, 320-Connecting component, 330-Template, 400-Drilling mechanism, 410-Support connecting component, 411-Support plate, 412-L-shaped pin seat, 413-Fasting screw, 420-Standard, 430-Lifting component, 431-Slide rail, 43 2-Sliding plate, 433-Limiting block, 434-First slider, 435-Guide screw, 436-Horizontal slide rail, 440-Horizontal drilled part, 441-Horizontal sliding plate, 4411-Through groove, 4412-Modible block, 4413-Pressure rod, 442-Drilled part, 443-Clamping assembly, 4431-Clamping block one, 4432-Clamping block two, 444-Second slider, 445-Push seat, 4451-Pressure bolt, 446-Push handle, 450-Roller positioning part, 451-Positioning seat, 452-Adjusting screw, 453-Positioning block, 454-Adjusting rod, 455-Positioning assembly, 4551-Positioning screw, 4552-Spring, 4553-Positioning rod, 4554-Ball, 500-Workpiece. Detailed Implementation

[0056] The technical solution 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.

[0057] like Figure 1 and Figure 2 As shown, the present invention provides a hole-making fixture for end frames or middle frames, including: a bracket 100, a base body 200, a mold 300, and a drilling mechanism 400. The base body 200 is connected to the top of the bracket 100. The bracket 100 can be welded from existing steel plates, angle steel, rectangular steel, and other profiles. Multiple profiles are welded together to form a frame structure. The shape of the frame structure can be a circular structure, a rectangular structure, a cube structure, or a polygonal structure, etc., without specific limitations. The bracket 100 is used to support the base body 200, and the base plate 210 in the base body 200 is connected and fixed to the bracket 100 by bolts.

[0058] The drilling mechanism 400 is connected to the top outer edge of the base body 200. The workpiece 500 is placed on the supporting rolling element 240 of the base body 200. The workpiece 500 is the end frame or middle frame of the existing rocket cabin. The inner side of the workpiece 500 is positioned by the limiting element 230 in the base body 200. The mold 300 is connected to the top of the workpiece 500. After the roller positioning element 450 in the drilling mechanism 400 positions the same row of positioning holes on the mold 300 in sequence, the horizontal drilling element 440 in the drilling mechanism 400 drills a row of holes at the corresponding position of the workpiece 500. The supporting roller 240 is used to support the end frame or middle frame. The supporting roller 240, together with the limiting member 230, ensures that there is no positional deviation when the end frame or middle frame is rotated. At the same time, the roller positioning member 450 is used to position with the positioning hole on the mold 300. After the roller positioning member 450 is adjusted, the vertical distance between the horizontal drilling member 440 and the roller positioning member 450 corresponds to the distance between the positioning hole on the mold 300 and the riveting hole to be processed on the end frame and middle frame. Then, the horizontal drilling member 440 is pushed to perform the drilling action, which can drill and form in one go. Furthermore, the end frame or middle frame is driven to rotate around the base body 200, which facilitates continuous drilling of the end frame or middle frame.

[0059] like Figures 3 to 7 As shown, the base body 200 includes a base plate 210 connected to the top of the bracket 100 and a fixed plate 220 connected to the top of the base plate 210 and coaxially arranged with the base plate 210. The support connector 410 is snapped onto the edge of the base plate 210. The fixed plate 220 includes a support ring 221 connected to the top of the base plate 210 and a circular ring 222 connected to the top of the support ring 221. The design of the support ring 221 is such that there is a certain distance between the circular ring 222 and the base plate 210, which facilitates the installation of the end frame and the middle frame. The central axis of the support ring 221 coincides with the central axis of the central hole 211 on the base plate 210. The central hole 211 facilitates the installation of the end frame and the middle frame.

[0060] Multiple limiting members 230 are provided and are distributed in a ring along the inner edge of the fixing plate 220. The limiting members 230 are distributed in a ring along the inner edge of the ring 222. The existing end frame and middle frame are both ring structures. The multiple limiting members 230 distributed in a ring along the inner edge of the ring 222 can provide ring positioning for the inner surface of the end frame or middle frame. Specifically, the limiting member 230 includes an L-shaped connecting plate 231 connected to the inner edge of the ring 222 and a horizontal limiting component connected to the L-shaped connecting plate 231 for positioning the inner surface of the end frame or middle frame. The vertical connecting portion 2311 of the L-shaped connecting plate 231 is located near the inner edge of the ring 222; the side of the vertical connecting portion 2311 near the center hole 211 is the inner side, and the opposite side is the outer side. The horizontal limiting component includes an upper connecting plate 232 and a lower connecting plate 233 symmetrically connected to the outer side wall of the vertical connecting part 2311, and a limiting wheel 234 rotatably connected between the upper connecting plate 232 and the lower connecting plate 233. The limiting wheel 234 rotates in the horizontal direction, and the outer edge of the limiting wheel 234 is tangent to the inner ring of the workpiece 500. The limiting wheel 234 can limit the radial direction of the end frame or the middle frame. At the same time, since the drilling is from the outside to the inside, the design of the limiting wheel 234 can distribute the force on the end frame and the middle frame, reduce the deformation of the end frame and the middle frame, and the rotation design of the limiting wheel 234 can reduce the wear on the end frame and the middle frame when rotating the end frame and the middle frame. In this embodiment, a pin is connected between the upper connecting plate 232 and the lower connecting plate 233, and the limiting wheel 234 is rotatably engaged with the pin. In other embodiments of the present invention, a rotating shaft is rotatably connected between the upper connecting plate 232 and the lower connecting plate 233, and the limiting wheel 234 is fixedly connected to the rotating shaft. Rotation is achieved by rotating the rotating shaft along the upper and lower connecting plates.

[0061] like Figure 4 As shown, the supporting rolling element 240 includes multiple first rolling portions 241 and multiple second rolling portions 242. All first rolling portions 241 are distributed in a ring along the inner edge of the ring 222, and all second rolling portions 242 are distributed in a ring along the outer edge of the ring 222. Both the first rolling portions 241 and the second rolling portions 242 are existing omnidirectional balls, also known as bullseye rollers. The omnidirectional balls allow the end frames or middle frames on them to slide flexibly. The omnidirectional balls are connected to the ring 222 by screws. By distributing multiple omnidirectional balls in a ring along the inner and outer edges of the ring 222, two sets of ring tracks with different diameters can be formed, thereby supporting end frames or middle frames of different sizes.

[0062] like Figures 8 to 10As shown, the mold 300 includes multiple arc-shaped pieces 310 and a connector 320 for connecting adjacent arc-shaped pieces 310. In this embodiment, the connector 320 consists of a connecting piece and two sets of screws. The connecting piece is located on the top of the adjacent arc-shaped pieces 310, and the two sets of screws pass through the connecting piece and connect to the adjacent arc-shaped pieces 310, thereby achieving the connection and fixation between the adjacent arc-shaped pieces 310. All the arc-shaped pieces 310 are combined to form a ring, and the ring is installed on the top of the workpiece 500. At least one arc-shaped piece 310 has a connecting block 311 at its bottom for connecting to the top of the workpiece 500. The outer wall of the ring is surrounded by a template 330, which is fixed to the outer wall of the ring by screws. Multiple positioning holes are distributed in a ring on the template 330. Multiple positioning holes are provided on the template 330 and distributed in a ring along the template 330. The positioning component 455 in the roller positioning component 450 is used to abut against the positioning holes. The connecting block 311 is connected to the top of the end frame or the middle frame by screws, so that when the end frame or the middle frame is rotated, the ring and the template 330 can rotate together with the end frame and the middle frame. When the positioning component 455 positions the mold 300, no displacement will occur, which facilitates continuous drilling. In this embodiment, there is one connecting block 311, which is welded to the bottom of one of the arc-shaped pieces 310. In other embodiments of the present invention, the connecting block 311 can be set to two, three, four, etc., and no specific limitation is made here.

[0063] like Figure 11As shown, the drilling mechanism 400 also includes a support connector 410 connected to the top outer edge of the base body 200, a stand 420 vertically arranged on the support connector 410, and a lifting member 430 that slides vertically with the stand 420. The support connector 410 is convenient to be engaged with the outer edge of the base plate 210 in the base body 200. The horizontal drilling member 440 slides laterally with the lifting member 430. The drilling component 442 in the horizontal drilling member 440 corresponds to the roller positioning member 450. After the roller positioning member 450 is positioned with the positioning hole of the mold 300, it pushes the horizontal drilling member 440 to drill at the corresponding position of the workpiece 500. The horizontal drilling component 440 is pushed to slide horizontally along the lifting component 430 to realize the drilling action of the drilling component 442. The lifting component 430 can be raised and lowered along the stand 420. Therefore, when the lifting component 430 is raised and lowered, it can drive the roller positioning component 450 and the horizontal drilling component 440 to be raised and lowered. This is used to adjust the position of the roller positioning component 450 and the drilling component 442 in the horizontal drilling component 440. The roller positioning component 450 is used to contact and position the positioning hole on the template 330. Since the drilling component 442 corresponds to the roller positioning component 450, the vertical distance between the drill bit of the drilling component 442 and the roller positioning component 450 corresponds to the distance between the positioning hole on the template 330 and the riveting hole to be processed on the end frame and the middle frame. Thus, when the roller positioning component 450 contacts the positioning hole on the template 330, the horizontal drilling component 440 is pushed to slide horizontally along the lifting component 430 to realize the drilling action of the drilling component 442.

[0064] like Figure 12 , Figure 13 and Figure 17As shown, the roller positioning component 450 includes a positioning seat 451 connected to the lifting component 430, an adjusting screw 452 rotatably connected to the top of the positioning seat 451, a positioning block 453 threadedly connected to the adjusting screw 452, and an adjusting rod 454 connected to the top of the positioning seat 451 and parallel to the adjusting screw 452. The adjusting rod 454 and the positioning block 453 are slidably engaged. The positioning block 453 is provided with a positioning component 455 corresponding to the drilling component 442. The positioning block 453 has a through hole adapted to the rod diameter of the adjusting rod 454. The top of the positioning seat 451 has a rotating cavity that engages with the bottom of the adjusting screw 452. A bearing seat can be embedded in the rotating cavity. Through the rotating engagement of the bearing seat and the adjusting screw 452, the adjusting screw 452 rotates but does not move up or down. The adjusting screw 452, the adjusting rod 454, and the positioning block 453 are combined to form a simple screw module structure. In this embodiment, by rotating the adjusting screw 452, the positioning block 453 can be driven to move up and down along the adjusting screw 452 and the adjusting rod 454, thereby driving the positioning component 455 on the positioning block 453 to move, thereby adjusting the distance between the positioning component 455 and the drilling component 442, and finally making the distance between the positioning component 455 and the drill bit of the drilling component 442 correspond to the distance between the positioning hole on the template 330 and the riveting hole to be processed on the end frame or middle frame, so as to facilitate the drilling component 442 to perform drilling operations.

[0065] The positioning block 453 has a horizontal through hole. The positioning assembly 455 includes a positioning screw 4551, a spring 4552, and a positioning rod 4553, all distributed axially along the horizontal through hole. The two ends of the spring 4552 contact the positioning screw 4551 and the positioning rod 4553, respectively. The spring 4552 is axially placed within the horizontal through hole, and its two ends do not need to be connected to the positioning screw 4551 or the positioning rod 4553. The positioning screw 4551 is threaded into the horizontal through hole. A ball bearing 4554, corresponding to the drilling component 442, is installed at the end of the positioning rod 4553 furthest from the spring 4552. After the positioning block 453 is adjusted, rotating the positioning screw 4551 compresses the spring 4552. The rotating positioning screw 4551 compresses the spring 4552, which in turn pushes out the positioning rod 4553 and the ball 4554, causing the ball 4554 to contact the positioning hole on the template 330. The positioning screw 4551 can limit the return of the spring 4552, while also giving the ball 4554 a certain pressure. This drives the horizontal drilling component 440 to slide laterally along the lifting component 430 to drill the workpiece 500. It also drives the workpiece 500 and the mold 300 to rotate around the base body 200. Under the pressure, the ball 4554 can roll into the next positioning hole on the template 330, and then push the horizontal drilling component 440 to continue drilling. This allows for continuous drilling of the workpiece 500, increasing the drilling speed and ensuring that the position of each hole corresponds to the other.

[0066] like Figure 14 As shown, the support connector 410 includes a support plate 411, an L-shaped pin seat 412 connected to the bottom wall of the end of the support plate 411, and a fastening screw 413 threaded onto the transverse connecting portion of the L-shaped pin seat 412. The L-shaped pin seat 412 and the bottom of the support plate 411 form a mounting cavity. The L-shaped pin seat 412 has a vertical connecting portion and a transverse connecting portion. The vertical connecting portion of the L-shaped pin seat 412 is connected to the bottom wall of the end of the support plate 411. The mounting cavity formed by the L-shaped pin seat 412 and the bottom of the support plate 411 facilitates fitting with the outer edge of the base plate 210. Then, by rotating the fastening screw 413, the base plate 210 is pressed against the bottom of the support plate 411, thereby achieving the purpose of fixing the drilling mechanism 400. In this embodiment, there are two sets of L-shaped pin seats 412 and fastening screws 413, and the two sets of L-shaped pin seats 412 and fastening screws 413 are located on the same side.

[0067] like Figure 15 As shown, the lifting component 430 includes a slide rail 431 vertically connected to the stand 420, a slide plate 432 that slides vertically with the slide rail 431, and a limiting block 433 connected to the stand 420 and located at the top of the slide rail 431. The back side of the slide plate 432 is connected to a first slider 434 that cooperates with the slide rail 431. A guide screw 435 is threaded onto the limiting block 433, and the guide screw 435 passes through the limiting block 433 and rotates with the slide plate 432. The end of the slide plate 432 is connected to the positioning seat 451. In this embodiment, a groove is provided on the top of the sliding plate 432, and a rotating block is placed in the groove. The rod of the guide screw 435 is threadedly engaged with the threaded hole on the limiting block 433. The bottom of the guide screw 435 extends into the groove and is connected to the rotating block. The limiting block 433 is used to limit the upward movement of the sliding plate 432. By rotating the guide screw 435, the rotating block connected to the bottom of the guide screw 435 can rotate in the groove. Then, the guide screw 435 drives the first slider 434 of the sliding plate 432 to move up and down along the slide rail 431, thereby adjusting the position of the horizontal drilling part 440 and the roller positioning part 450.

[0068] like Figure 16As shown, the horizontal drilling component 440 also includes a horizontal sliding plate 441 that slides laterally with the sliding plate 432, and a clamping assembly 443 disposed on the horizontal sliding plate 441. The drilling component 442 is placed on the horizontal sliding plate 441 and clamped by the clamping assembly 443. The side wall of the sliding plate 432 is provided with a horizontal slide rail 436, and the side wall of the sliding plate 432 has a slot for engaging the horizontal slide rail 436. The horizontal slide rail 436 is fixed to the sliding plate 432 by screws. The side wall of the horizontal sliding plate 441 is connected to a second slider 444 that engages with the horizontal slide rail 436. The second slider 444 is connected to the side wall of the horizontal sliding plate 441 by screws. The clamping assembly 443 is used to clamp the drilling component 442 onto the horizontal sliding plate 441. The clamping assembly 443 includes a first clamping block 4431 connected to a horizontal sliding plate 441 and a second clamping block 4432 located on top of the first clamping block 4431. The drilling component 442 is locked by the first clamping block 4431 and the second clamping block 4432. Specifically, a clamping cavity is formed between the first clamping block 4431 and the second clamping block 4432. The first clamping block 4431 has two threaded holes, and the second clamping block 4432 has two through holes corresponding to the threaded holes. A threaded rod is rotatably fitted to one of the through holes on the second clamping block 4432. The top outer wall of the threaded rod is smooth and fits the through hole. The thread on the bottom outer wall of the threaded rod is threadedly connected to a threaded hole on the first clamping block 4431. A sliding rod is threadedly connected to the two threaded holes on the first clamping block 4431. The top of the sliding rod passes through the two through holes on the second clamping block 4432 and extends to the outside. The second clamping block 4432 can be locked onto the first clamping block 4431 by the threaded rod. In other embodiments of the invention, the second locking block 4432 can be locked to the top of the first locking block 4431 by two sets of screws.

[0069] In this embodiment, two sets of clamping components 443 are provided. The first set of clamping components 443 is used to clamp the drill bit of the drilling component 442, and the second set of clamping components 443 is used to clamp the outer casing handle of the drilling component 442, thereby achieving multi-directional fixation of the drilling component 442.

[0070] like Figure 16As shown, a pusher 445 is provided at the end of the horizontal slide plate 441, and a pusher 446 is connected to the pusher 445; a through groove 4411 corresponding to the side wall of the drilling component 442 is provided on the horizontal slide plate 441; a movable block 4412 is provided in the through groove 4411; a clamping rod 4413 is connected to the top of the movable block 4412; a clamping bolt 4451 is threadedly connected to the side wall of the pusher 445; the clamping bolt 4451 passes through the pusher 445 and the through groove 4411 and abuts against the outer wall of the movable block 4412. The side wall of the push base 445 is provided with a threaded through hole corresponding to the through groove 4411. The groove diameter of the through groove 4411 matches the size of the movable block 4412. The clamping bolt 4451 passes through the threaded hole on the push base 445, extends into the through groove 4411, and contacts the side wall of the movable block 4412. Further rotation of the clamping bolt 4451 can push the movable block 4412 to move along the through groove 4411 until the clamping rod 4413 abuts against the side wall of the drilling component 442. Thus, the clamping rod 4413 and the clamping assembly 443 achieve multi-directional fixation of the drilling component 442, resulting in higher drilling accuracy.

[0071] The specific steps for using the hole-making fixture for the end frame or middle frame of the present invention are as follows:

[0072] (1) Pre-fix the drilling mechanism 400 to the top outer edge of the base plate 210, determine whether holes need to be made in the end frame or the middle frame, and prepare the mold 300.

[0073] Multiple arc-shaped pieces 310 are connected by a connector 320 to form a ring. The connector 320 can prevent adjacent arc-shaped pieces 310 from sliding against each other.

[0074] (2) Place the end frame or middle frame of the rivet hole to be processed on the support rolling element 240 of the base body 200, while the limiting element 230 positions the inner side of the end frame or middle frame, and then place the above-mentioned ring on the top of the end frame or middle frame. The connecting block 311 in one of the arc-shaped pieces 310 is connected and fixed to the top of the end frame or middle frame by screws.

[0075] (3) Cut the template 330 using a laser cutter, wrap the template 330 around the outer wall of the ring, and fix the template 330 to the outer wall of the ring with screws;

[0076] (4) Use clamping assembly 443 to clamp the drill bit of drilling component 442, then rotate clamping bolt 4451, and push movable block 4412 and clamping rod 4413 to move through clamping bolt 4451 until clamping rod 4413 presses against the outer wall of drilling component 442.

[0077] (5) Rotate the guide screw 435 and drive the sliding plate 432 to move up and down along the stand 420 to adjust the position of the horizontal drilling part 440 and the roller positioning part 450, so that the positioning component 455 in the roller positioning part 450 initially corresponds to the positioning hole on the template 330.

[0078] (6) Remove the positioning screw 4551, further rotate the adjusting screw 452, and drive the positioning block 453 to move up and down along the adjusting screw 452 and adjusting rod 454, thereby driving the positioning component 455 on the positioning block 453 to move, so that the ball 4554 in the positioning component 455 corresponds to the positioning hole on the template 330.

[0079] At this time, the distance between the ball bearing 4554 in the positioning component 455 and the drill bit of the drilling component 442 is equal to the distance between the positioning hole on the template 330 and the rivet hole to be processed on the end frame or middle frame.

[0080] (7) Install and rotate the positioning screw 4551. The positioning screw 4551 compresses the spring 4552 and pushes out the positioning rod 4553 and the ball 4554. Then, rotate the positioning screw 4551 further so that the ball 4554 abuts against the positioning hole on the template 330.

[0081] (8) The drilling component 442 is connected to the power source to make the drill bit rotate, and then pushes the push handle 446 and the push seat 445. The push seat 445 drives the horizontal slide plate 441 to slide along the sliding plate 432, and the drill bit of the drilling component 442 drills the end frame or the middle frame.

[0082] The aforementioned drilling component 442 can be an existing air gun drill, or other components capable of drilling can be used.

[0083] (9) After drilling is completed, pull back the push handle 446 and rotate the end frame or middle frame. The ball bearing 4554 disengages from the first hole and slides into the next hole. Stop the rotation of the end frame or middle frame and start machining the next hole.

[0084] It enables continuous drilling, allowing drilling of a continuous row of holes. When multiple rows of holes need to be drilled, simply adjust the positions of the roller positioning component 450 and the horizontal drilling component 440. The drilling can be completed in one go. By repeating the above operation, all the riveting holes of the end frame and middle frame can be drilled, and the drilling accuracy is high.

[0085] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tooling for drilling holes in an end frame or middle frame, characterized in that, include: The bracket (100), base body (200), mold (300), and drilling mechanism (400) are provided. The base body (200) is connected to the top of the bracket (100), and the drilling mechanism (400) is connected to the top outer edge of the base body (200). The workpiece (500) is placed on the supporting roller (240) of the base body (200), and the inner side of the workpiece (500) is positioned by the limiting member (230) in the base body (200). The mold (300) is connected to the top of the workpiece (500). After the roller positioning component (450) in the drilling mechanism (400) positions the same row of positioning holes on the mold (300) in sequence, the horizontal drilling component (440) in the drilling mechanism (400) drills a row of holes at the corresponding position of the workpiece (500). The drilling mechanism (400) further includes a support connector (410) connected to the top outer edge of the base body (200), a stand (420) vertically arranged on the support connector (410), and a lifting member (430) that slides vertically with the stand (420). The horizontal drilling member (440) slides laterally with the lifting member (430). The drilling component (442) in the horizontal drilling member (440) corresponds to the roller positioning member (450). After the roller positioning member (450) is positioned with the positioning hole of the mold (300), it pushes the horizontal drilling member (440) to drill at the corresponding position of the workpiece (500). The roller positioning component (450) includes a positioning seat (451) connected to the lifting component (430), an adjusting screw (452) rotatably connected to the top of the positioning seat (451), a positioning block (453) threadedly connected to the adjusting screw (452), and an adjusting rod (454) connected to the top of the positioning seat (451) and parallel to the adjusting screw (452). The adjusting rod (454) slides with the positioning block (453), and the positioning block (453) is provided with a positioning component (455) corresponding to the drilling component (442). The mold (300) includes a plurality of arc-shaped pieces (310) and a connector (320) for connecting adjacent arc-shaped pieces (310). All the arc-shaped pieces (310) are combined to form a ring, and the ring is installed on the top of the workpiece (500). At least one of the arc-shaped pieces (310) has a connecting block (311) at its bottom for connecting to the top of the workpiece (500). The outer wall of the ring is surrounded by a template (330), and the positioning holes are multiple and distributed in a ring on the template (330). The positioning component (455) is used to abut against the positioning holes. The base body (200) includes a base plate (210) connected to the top of the bracket (100) and a fixed plate (220) connected to the top of the base plate (210) and coaxially arranged with the base plate (210). The support connector (410) is snapped onto the edge of the base plate (210). The fixed disk (220) includes a support ring (221) connected to the top of the base disk (210) and a ring (222) connected to the top of the support ring (221). The central axis of the support ring (221) coincides with the central axis of the central hole (211) on the base disk (210). The limiting member (230) is provided with a plurality of rings distributed along the inner edge of the fixed disk (220). The supporting rolling member (240) includes a plurality of first rolling parts (241) and a plurality of second rolling parts (242). All the first rolling parts (241) are distributed in a ring along the inner edge of the ring (222), and all the second rolling parts (242) are distributed in a ring along the outer edge of the ring (222).

2. The hole-making fixture for the end frame or middle frame according to claim 1, characterized in that, The positioning block (453) has a horizontal through hole. The positioning assembly (455) includes a positioning screw (4551), a spring (4552) and a positioning rod (4553) distributed along the axial direction of the horizontal through hole. The two ends of the spring (4552) are in contact with the positioning screw (4551) and the positioning rod (4553) respectively. The positioning screw (4551) is threadedly connected to the horizontal through hole. The end of the positioning rod (4553) away from the spring (4552) is equipped with a ball (4554) corresponding to the drilling component (442).

3. The hole-making fixture for the end frame or middle frame according to claim 1, characterized in that, The limiting member (230) includes an L-shaped connecting plate (231) connected to the inner edge of the ring (222) and a horizontal limiting member connected to the L-shaped connecting plate (231) for positioning the inner side of the end frame or the middle frame. The vertical connecting part (2311) of the L-shaped connecting plate (231) is located near the inner edge of the ring (222). The horizontal limiting component includes an upper connecting plate (232) and a lower connecting plate (233) symmetrically connected to the outer side wall of the vertical connecting part (2311), and a limiting wheel (234) rotatably connected between the upper connecting plate (232) and the lower connecting plate (233). The limiting wheel (234) rotates in the horizontal direction, and the outer edge of the limiting wheel (234) is tangent to the inner ring of the workpiece (500).

4. The hole-making fixture for the end frame or middle frame according to claim 1, characterized in that, The support connector (410) includes a support plate (411), an L-shaped pin seat (412) connected to the bottom wall of the end of the support plate (411), and a fastening screw (413) threaded to the transverse connecting part of the L-shaped pin seat (412). The L-shaped pin seat (412) and the bottom of the support plate (411) form an installation cavity, and the stand (420) is connected to the top of the support plate (411).

5. The hole-making fixture for the end frame or middle frame according to claim 4, characterized in that, The lifting component (430) includes a slide rail (431) vertically connected to the stand (420), a slide plate (432) that slides vertically with the slide rail (431), and a limiting block (433) connected to the stand (420) and located at the top of the slide rail (431). The back side of the slide plate (432) is connected to a first slider (434) that cooperates with the slide rail (431). A guide screw (435) is threaded onto the limiting block (433), and the guide screw (435) passes through the limiting block (433) and rotates with the slide plate (432). The end of the slide plate (432) is connected to the positioning seat (451).

6. The hole-making fixture for the end frame or middle frame according to claim 5, characterized in that, The horizontal drilling component (440) further includes a horizontal sliding plate (441) that slides laterally with the sliding plate (432) and a clamping assembly (443) disposed on the horizontal sliding plate (441). The drilling component (442) is placed on the horizontal sliding plate (441) and clamped by the clamping assembly (443). The clamping assembly (443) includes a first clamping block (4431) connected to the horizontal slide plate (441) and a second clamping block (4432) located on top of the first clamping block (4431), and the drilling component (442) is locked by the first clamping block (4431) and the second clamping block (4432).

7. The hole-making fixture for the end frame or middle frame according to claim 6, characterized in that, The end of the horizontal sliding plate (441) is provided with a push seat (445), and a push handle (446) is connected to the push seat (445). The horizontal sliding plate (441) has a through groove (4411) corresponding to the side wall of the drilling component (442). A movable block (4412) is provided in the through groove (4411). A clamping rod (4413) is connected to the top of the movable block (4412). A clamping bolt (4451) is threadedly connected to the side wall of the push seat (445). The clamping bolt (4451) passes through the push seat (445) and the through groove (4411) and abuts against the outer wall of the movable block (4412).

Images