A kind of drilling positioning device for rescue vehicle suspension beam processing

Abstract

The present application belongs to the technical field of drilling positioning, and discloses a drilling positioning device for rescue vehicle suspension beam machining, which comprises a base, a mounting seat fixedly installed on the top of the base, a positioning mechanism arranged on the mounting seat and used for clamping the suspension beam, and a driving mechanism arranged in the mounting seat and used for adjusting the position of the positioning mechanism. The positioning mechanism comprises a movable plate connected to the driving mechanism, and a fixed block rotatably arranged on the movable plate. Two clamping pieces are arranged on the two sides of the fixed block and used for abutting against and fixing the suspension beam. The two clamping pieces can be switched by the rotating mechanism, so that the two clamping pieces can adapt to the hollow pipe suspension beam and the flat plate suspension beam, and can quickly and compatibly accommodate suspension beams of different specifications without replacing the whole positioning device, thereby greatly reducing the tooling cost and the changeover time, improving the accuracy of installation and positioning, and further improving the machining efficiency.

Description

Technical Field

[0001] This invention belongs to the field of drilling positioning technology, and specifically relates to a drilling positioning device for processing the suspension crossbeam of a rescue vehicle. Background Technology

[0002] The drilling and positioning device for machining suspension crossbeams of rescue vehicles is a specialized high-precision tooling designed specifically for drilling and machining suspension crossbeams of rescue vehicles. It is suitable for machining suspension crossbeams (channel steel, I-beams, welded irregular beams, etc.) of various rescue vehicles such as fire trucks, ambulances, and engineering rescue vehicles. The automotive suspension crossbeam is a crucial component of the vehicle frame, providing mounting points for the powertrain, bearing part of the powertrain's weight, and transmitting torque from the powertrain. Drilling holes in the suspension crossbeam is a vital step in the automotive manufacturing process. It can be used in conjunction with bench drills, radial drills, CNC drilling machines, and other machining equipment. Through an integrated design of precise positioning, rigid clamping, and drill bit guidance, it ensures the positional accuracy, coaxiality, and perpendicularity of the drilled holes in the suspension crossbeam, meeting the high load-bearing and high reliability assembly requirements of rescue vehicle suspensions.

[0003] In existing technology, it is necessary to locate the position where the suspension crossbeam needs to be drilled, and then clamp and fix it before drilling. However, when clamping and fixing hollow tube suspension crossbeams and flat plate suspension crossbeams, different clamping blocks need to be replaced to adapt to suspension crossbeams of different shapes, which affects the accuracy of installation and positioning, and thus makes it difficult to improve processing efficiency.

[0004] Therefore, it is necessary to invent a drilling and positioning device for processing the suspension beam of a rescue vehicle to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a drilling and positioning device for machining the suspension crossbeam of a rescue vehicle, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a drilling and positioning device for processing the suspension crossbeam of a rescue vehicle, comprising a base, a mounting seat fixedly installed on the top of the base, and a positioning mechanism provided on the mounting seat for clamping the suspension crossbeam; The drive mechanism, located within the mounting base, is used to adjust the position of the positioning mechanism; Positioning mechanisms include: A movable plate is connected to the drive mechanism, and a fixed block is rotatably mounted on the movable plate; Two clamping components are respectively set on both sides of the fixing block to fit and fix the suspension crossbeam; The rotating mechanism, located on the movable plate and the fixed block, is used to switch the clamping parts on both sides of the fixed block.

[0007] Furthermore, the drive mechanism includes a drive component and a movable block. The mounting base has a mounting groove, the drive component is located in the mounting groove, and two movable blocks are provided on the drive component. Each of the two movable blocks has a movable groove on its top. A telescopic rod is rotatably connected in the movable groove. The telescopic rod passes through the movable plate and is fixedly connected to the bottom of the fixed block. A first spring is provided in the telescopic rod, and the two ends of the first spring are fixedly connected to the inner wall of the bottom of the movable groove and the bottom of the fixed block, respectively.

[0008] Furthermore, the rotating mechanism includes a fixed rod, a limiting member, and a limiting structure. Fixed rods are fixedly connected to both sides of the bottom of the fixed block. The fixed rods are inserted into the movable plate. The fixed rods and the movable plate are connected by the limiting member. The fixed rods are located on both sides of the telescopic rod, and a limiting structure is provided between the fixed rods and the telescopic rod.

[0009] Furthermore, the limiting structure includes a connecting plate, a push rod, a push block, and a limiting rod. The connecting plate is fixedly connected to the fixed rod, and the push rod is fixedly connected to the bottom of the connecting plate. A push block is provided at the bottom of the push rod, and the limiting rod is fixedly connected to the side of the push block away from the fixed rod. The limiting rod is inserted into the fixed end of the telescopic rod.

[0010] Furthermore, grooves are provided on both sides of the movable plate, and the grooves are connected to the movable slot. The push block is movably connected to the inner wall of the groove. A round protrusion is provided at the bottom of the push rod, and the side of the push block near the round protrusion is inclined, with the round protrusion located at the bottom end of the inclined surface.

[0011] Furthermore, a second spring is provided in the middle of the limiting rod, and the limiting rod extends through the groove into the movable groove. The fixed rod, connecting plate, push rod, moving block, limiting rod and second spring are arranged symmetrically about the center of the telescopic rod.

[0012] Furthermore, protective blocks are provided on the outer sides of the clamping parts on both sides of the mounting base. Two movable rods are fixedly connected to the bottom of the protective blocks. The movable rods are movably connected to the movable plate. A third spring is sleeved on the outer side of the movable rods. The movable rods are located on both sides of the fixed rods.

[0013] Furthermore, the clamping component includes a first clamping block, a second clamping block, a connecting block, and an arc-shaped block. The first clamping block is fixedly connected to the bottom end of one side of the fixed block. The connecting block is movably connected to the top of the first clamping block via a rotating shaft. The second clamping block is located at the top of the fixed block. The top of the fixed block is inserted into the second clamping block via a limiting block. An arc-shaped block is fixedly connected to the bottom end of the other side of the fixed block.

[0014] Furthermore, an electric telescopic plate is fixedly connected inside the first clamping block. The electric telescopic plate is located on the side of the connecting block away from the fixed block. The second clamping block is set perpendicular to the fixed block, and one end of the connecting block near the center of the mounting base is located at the top of the first clamping block. The top of the electric telescopic plate abuts against the bottom of the second clamping block.

[0015] Furthermore, a mounting bracket is fixedly connected to the top of the protective block. The mounting bracket is L-shaped, and a first electric push rod is fixedly connected to the bottom of the mounting bracket. The first electric push rod is located on top of the second clamping block, and the first electric push rod is connected to the second clamping block through a fastener.

[0016] The technical effects and advantages of this invention are as follows: 1. This invention enables one-click switching of the clamping components on both sides of the fixed block via a rotating mechanism, allowing for quick adaptation to suspension beams with different cross-sections, such as hollow tubes and flat plates, without the need to replace the entire set of tooling. This significantly reduces costs and shortens changeover time. It can quickly accommodate beams of different specifications without replacing the entire positioning device, greatly reducing tooling costs and changeover time. It also avoids clamping loosening due to processing vibration, improves clamping coaxiality and positional accuracy, ensures drilling processing accuracy, and improves installation and positioning accuracy, thereby facilitating improved processing efficiency.

[0017] 2. This invention, through the foldable storage design of the clamping block, effectively avoids tool interference, meets the machining needs of complex hole positions such as inner holes and oblique holes, expands the machining scenarios, improves clamping and part removal efficiency, and allows the use of protective blocks and elastic buffer structures after switching between the arc-shaped block and the first clamping block and the second clamping block to extend the service life of the core clamping components and prevent damage to the first clamping block, connecting block and the second clamping block, which would affect the clamping and fixing effect. By simplifying the entire process of clamping, part removal and shape change, the operating space is larger, and it is suitable for quick clamping of heavy and irregular crossbeams, significantly improving the overall machining efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a cross-sectional view of the base and mounting bracket according to an embodiment of the present invention; Figure 3 This is a cross-sectional view of the drive mechanism according to an embodiment of the present invention; Figure 4 This is a structural diagram of the protective block and clamping member according to an embodiment of the present invention; Figure 5 This is a cross-sectional view of the second clamping block according to an embodiment of the present invention; Figure 6 This is a structural diagram of the rotating mechanism according to an embodiment of the present invention; Figure 7 This is an embodiment of the present invention. Figure 6 Enlarged view of point A; Figure 8 This is a structural diagram of the movable plate, arc-shaped block, and fixed block according to an embodiment of the present invention.

[0019] In the diagram: 1. Base; 2. Mounting base; 3. Movable plate; 4. Fixed block; 5. Moving block; 6. Motor; 7. Bidirectional adjusting screw; 8. Telescopic rod; 9. First spring; 10. Fixed rod; 11. Connecting plate; 12. Push rod; 13. Pushing block; 14. Limiting rod; 15. Second spring; 16. Protective block; 17. Movable rod; 18. First clamping block; 19. Second clamping block; 20. Connecting block; 21. Arc-shaped block; 22. Limiting block; 23. Electric telescopic plate; 24. Mounting frame; 25. First electric push rod; 26. Second electric push rod. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0021] This invention provides a drilling and positioning device for machining the suspension crossbeam of a rescue vehicle, such as... Figures 1 to 3 As shown, the device includes a base 1, a mounting base 2, a positioning mechanism, and a drive mechanism. The mounting base 2 is fixedly mounted on the top of the base 1. The positioning mechanism is provided on the mounting base 2 for clamping the suspension crossbeam. The drive mechanism is located inside the mounting base 2 for adjusting the position of the positioning mechanism. The positioning mechanism includes a movable plate 3, two clamping parts, a fixed block 4, and a rotating mechanism. The movable plate 3 is connected to the drive mechanism. The fixed block 4 is rotatably mounted on the movable plate 3. The movable plate 3 is slidably connected to the top of the mounting base 2. The two clamping parts are respectively located on both sides of the fixed block 4 for fitting and fixing the suspension crossbeam. The rotating mechanism is located on the movable plate 3 and the fixed block 4 for switching the clamping parts on both sides of the fixed block 4.

[0022] The drive mechanism includes a drive component and a moving block 5. The mounting base 2 has a mounting groove, and the drive component is located in the mounting groove. Two moving blocks 5 are set on the drive component. The drive component includes a motor 6 and a bidirectional adjusting screw 7. The motor 6 is fixedly connected to one side of the mounting base 2. The output end of the motor 6 is fixedly connected to the bidirectional adjusting screw 7. The bidirectional adjusting screw 7 passes through the mounting base 2 and is rotatably connected to the inner wall of the mounting groove. The two ends of the bidirectional adjusting screw 7 are respectively threaded to the two moving blocks 5. The two moving blocks 5 are slidably connected to the inner wall of the mounting groove. The two moving blocks 5 are fixedly connected to the bottom of the movable plate 3. The top of the two moving blocks 5 is provided with a movable groove. A telescopic rod 8 is rotatably connected in the movable groove. The telescopic rod 8 passes through the movable plate 3 and is fixedly connected to the bottom of the fixed block 4. A first spring 9 is set in the telescopic rod 8. The two ends of the first spring 9 are fixedly connected to the bottom inner wall of the movable groove and the bottom of the fixed block 4, respectively.

[0023] By placing the suspension crossbeam on the mounting base 2, the starter motor 6 drives the bidirectional adjusting screw 7 to rotate, causing the two moving blocks 5 to move synchronously towards the center. This moves the movable plate 3 and the positioning mechanism closer to the suspension crossbeam. The moving blocks 5 then bring the clamping component on one side of the fixed block 4 into contact with the suspension crossbeam. When the bidirectional adjusting screw 7 stops rotating, the moving blocks 5 lock in place, and the suspension crossbeam is stably clamped, providing precise positioning for subsequent drilling and other processing steps. When different shaped crossbeams need to be adapted, the motor 6 rotates in the opposite direction, the moving blocks 5 move in opposite directions, the clamping component separates from the crossbeam, and the beam returns to its initial position. The rotation mechanism then starts, causing the fixed block 4 to rotate 180° on the movable plate 3, rotating the clamping component on the other side to the working position. The drive mechanism is then restarted, causing the moving blocks 5 to bring the new clamping component to fit the crossbeam, completing a quick changeover to adapt to new specifications of suspension crossbeams. By switching between the two clamping components, multiple specifications of crossbeams can be adapted without changing tooling, solving the pain point of small-batch, multi-variety production of rescue vehicles.

[0024] like Figure 3 , Figure 5 As shown, the rotating mechanism includes a fixed rod 10, a limiting member, and a limiting structure. The fixed rod 10 is fixedly connected to both sides of the bottom of the fixed block 4. The fixed rod 10 is inserted into the movable plate 3. The fixed rod 10 and the movable plate 3 are connected by the limiting member. The fixed rod 10 is located on both sides of the telescopic rod 8, and a limiting structure is provided between the fixed rod 10 and the telescopic rod 8.

[0025] The fixed rods 10 are symmetrically arranged on both sides of the telescopic rod 8 to improve the stability of the rotation of the fixed block 4. They are also connected to the movable plate 3 to restrict the radial movement of the fixed block 4. When the fixed rods 10 are connected to the movable plate 3, the limiting and fixing parts are both the second electric push rods 26. The second electric push rods 26 are fixedly connected inside the movable plate 3. The second electric push rods 26 pass through the movable plate 3 and are connected to the fixed rods 10. In the non-switching state, the fixed block 4 is fixed on the movable plate 3 to prevent the fixed block 4 from loosening due to processing vibration. The limiting structure restricts the rotation angle of the fixed block 4 to ensure that the clamping parts on both sides are switched into place.

[0026] like Figures 5 to 7As shown, the limiting structure includes a connecting plate 11, a pushing rod 12, a pushing block 13, and a limiting rod 14. The connecting plate 11 is fixedly connected to the fixed rod 10. The bottom of the connecting plate 11 is fixedly connected to the pushing rod 12. The bottom of the pushing rod 12 is provided with a pushing block 13. The side of the pushing block 13 away from the fixed rod 10 is fixedly connected to the limiting rod 14. The limiting rod 14 is inserted into the fixed end of the telescopic rod 8. Grooves are provided on both sides of the movable plate 3. The grooves are connected to the movable groove. The pushing block 13 is movably connected to the inner wall of the groove. The bottom of the pushing rod 12 is provided with a round protrusion. The side of the pushing block 13 near the round protrusion is inclined. The round protrusion is located at the bottom end of the inclined surface. A second spring 15 is provided in the middle of the limiting rod 14. The limiting rod 14 extends through the groove into the movable groove. The fixed rod 10, the connecting plate 11, the pushing rod 12, the movable block 5, the limiting rod 14, and the second spring 15 are symmetrically arranged with respect to the center of the telescopic rod 8.

[0027] When it is necessary to switch the clamping parts, move the fixed block 4 upward, so that the fixed rod 10 drives the connecting plate 11 and the push rod 12 to move upward, so that the push rod 12 drives the round convex to move upward synchronously. At the same time, the telescopic rod 8 at the bottom of the fixed block 4 and the first spring 9 are stretched. When the fixed rod 10 moves out of the movable plate 3, the push rod 12 and the round convex no longer squeeze the push block 13. The push block 13 moves towards the fixed rod 10. Under the action of the second spring 15, the limiting rod 14 moves from the movable groove to the recess, no longer inserting with the telescopic rod 8, releasing the limitation on the telescopic rod 8. Then rotate the fixed block 4. After the fixed block 4 rotates 180°, the clamping parts on both sides of the fixed block 4 are interchanged. Then move the fixed block 4 downward. Under the action of the second spring 15, This causes the telescopic rod 8 to retract, and the fixing block 4 drives the fixing rod 10 and the connecting plate 11 to move towards the movable plate 3. When the bottom of the fixing block 4 is in contact with the top of the movable plate 3, the telescopic rod 8 and the first spring 9 return to their original state, and the fixing rod 10 is inserted into the movable plate 3. The round protrusion of the push rod 12 slides to the bottom along the inclined surface of the push block 13, pushing the push block 13 to return to horizontal reset towards the telescopic rod 8, so that the second spring 15 is compressed. Under the elastic force of the second spring 15, the limiting rod 14 is reinserted into the fixed end of the telescopic rod 8 to limit the telescopic rod 8. At the same time, after the fixing rod 10 rotates 180 degrees, the fixing rod 10 and the limiting part on the movable plate 3 are re-fixed. After being fixed again, the posture of the fixing block 4 is completely locked, and the switching of the clamping parts is completed.

[0028] Since the fixed rod 10, connecting plate 11, push rod 12, moving block 5, limiting rod 14 and second spring 15 are symmetrically arranged with the center of telescopic rod 8, the limiting structures on both sides move synchronously and the force is completely balanced. There is no unilateral offset when processing vibration, and the locking state is more stable. After the two clamping parts are switched, the drive mechanism can directly drive the moving block 5 to move towards each other to complete the clamping of the new clamping part. The entire process is seamless and has high changeover efficiency.

[0029] like Figures 4 to 5 As shown, protective blocks 16 are provided on the outer side of the clamping parts on both sides of the mounting base 2. One side of the protective block 16 is in contact with the fixed block 4. Two movable rods 17 are fixedly connected to the bottom of the protective block 16. The movable rods 17 are movably connected to the movable plate 3. A third spring is sleeved on the outer side of the movable rod 17. One end of the third spring is fixedly connected to the protective block 16, and the other end is fixedly connected to the inner wall of the movable plate 3. The movable rods 17 are located on both sides of the fixed rod 10.

[0030] The protective block 16 completely covers the outer area of ​​the fixing block 4 and the clamping parts, preventing iron filings and dust from accumulating on the contact surfaces of the fixing block 4 and the clamping parts. It also prevents damage to the fixing block 4 or the clamping parts when the tooling is idle. When it is necessary to switch the clamping parts, the protective block 16 is moved away from the fixing block 4, causing the movable rod 17 to move synchronously, stretching the third spring. When the clamping parts on both sides of the fixing block 4 are fully exposed, the fixing block 4 is rotated to switch the positions of the clamping parts on both sides. After the switch is complete, the protective block 16 is moved, the third spring contracts, and the movable rod 17 moves into the movable plate 3, so that the protective block 16 is in contact with one side of the fixing block 4, protecting the switched clamping parts and extending their service life.

[0031] like Figure 4 , Figure 7 As shown, the clamping components include a first clamping block 18, a second clamping block 19, a connecting block 20, and an arc-shaped block 21. The first clamping block 18 is fixedly connected to the bottom end of one side of the fixed block 4. The connecting block 20 is movably connected inside the first clamping block 18. The top of the connecting block 20 is rotatably connected to the second clamping block 19 via a pivot. The second clamping block 19 is located at the top of the fixed block 4 and is adapted to crossbeams of different heights. A limiting block 22 is fixedly connected to one side of the fixed block 4. The limiting block 22 is inserted into the middle of the second clamping block 19 to facilitate the connection between the second clamping block 19 and the fixed block 4. Block 4 remains parallel. An arc-shaped block 21 is fixedly connected to the bottom of the other side of the fixed block 4. An electric telescopic plate 23 is fixedly connected inside the first clamping block 18. The electric telescopic plate 23 is located on the side of the connecting block 20 away from the fixed block 4. The second clamping block 19 is set perpendicular to the fixed block 4, and one end of the connecting block 20 near the center of the mounting base 2 is located at the top of the first clamping block 18. The top of the electric telescopic plate 23 abuts against the bottom of the second clamping block 19. The height adjustment and posture locking of the second clamping block 19 are achieved by telescopic movement, providing a stable clamping force.

[0032] The first clamping block 18 and the second clamping block 19 are adapted to rectangular or flat suspension crossbeams, while the arc-shaped block 21 is adapted to circular or hollow tube suspension crossbeams. Switching between these two structures eliminates the need to replace the clamping components, resolving the pain point of clamping crossbeams of various specifications and cross sections in rescue vehicles. The movable connecting block 20 and the second clamping block 19 are adapted to rectangular suspension crossbeams of different heights. By rotating the second clamping block 19 to a parallel position with the fixed block 4, the protective block 16 can protect the first clamping block 18 and the second clamping block 19 after switching positions with the arc-shaped block 21. Furthermore, by rotating the second clamping block 19, when the suspension crossbeam requires machining inner holes, multi-angle oblique holes, or holes close to the clamping area, the second clamping block 18 can be rotated. 9. Fold up or down to completely avoid the movement path of the tool and prevent the tooling from colliding with the drill bit or milling cutter. During the clamping stage, first rotate the second clamping block 19 to a vertical position to provide more operating space for the hoisting and positioning of the suspension beam, and avoid positioning difficulties caused by the second clamping block 19 blocking the beam. It is especially suitable for clamping heavy and irregular beams. After processing, fold up the second clamping block 19 to prevent scratching the anti-corrosion coating or machined holes on the beam surface, reduce the risk of workpiece damage, and speed up the workpiece removal process.

[0033] like Figures 2 to 4 As shown, a mounting bracket 24 is fixedly connected to the top of the protective block 16. The mounting bracket 24 is L-shaped. A first electric push rod 25 is fixedly connected to the bottom of the mounting bracket 24. The first electric push rod 25 is located on the top of the second clamping block 19, and the first electric push rod 25 is connected to the second clamping block 19 through a fastener. The first electric push rod 25 is inserted into the top of the second clamping block 19. The fastener is located inside the second clamping block 19. A limiting opening is provided at the bottom of the first electric push rod 25 and in the middle of the limiting block 22. The fastener is connected to the first electric push rod 25 through the limiting opening.

[0034] Since the fixing component is the second electric push rod 26, the second electric push rod 26 is inserted into the limiting block 22 and the first electric push rod 25 through the limiting port respectively. When the second clamping block 19 rotates to a state parallel to the fixing block 4, the limiting block 22 is inserted into the middle of the second clamping block 19. Then the second electric push rod 26 is activated to insert into the limiting port, thereby connecting the second clamping block 19 with the fixing block 4 and keeping the second clamping block 19 stable. The electric telescopic plate 23 is activated to adjust the height of the second clamping block 19 to accommodate rectangular cross-section beams of different heights, so that the second clamping block 19 fits against the top of the cross-section beam. The electric telescopic plate 23 then extends and retracts to press against the second clamping block 19, supporting its posture. The second electric push rod 26 is fixed by interlocking with the first electric push rod, and the first electric push rod 25 restricts the second clamping block 19 from gaps caused by vibration between the connecting block 20 and the electric telescopic plate 23, further ensuring clamping accuracy and preventing hole displacement. When drilling is completed and the cross-section beam needs to be released, or when the fixed block 4 needs to be rotated to switch to the arc-shaped block 21 for clamping, the telescopic end of the first electric push rod 25 retracts upward, and the second electric push rod 26 is no longer interlocked with the limiting port, separating the first electric push rod 25 from the second clamping block 19, releasing the top restriction of the second clamping block 19, restoring the freedom of movement of the second clamping block 19, and facilitating the removal of parts and switching of clamping parts.

[0035] Working principle of this invention: Reference Figures 1 to 7 As shown, in use, the flat suspension crossbeam is first placed on the mounting base 2. The motor 6 is started to drive the bidirectional adjusting screw 7 to rotate, causing the two moving blocks 5 to move the movable plate 3 towards the suspension crossbeam. This moves the movable plate 3 and the fixed block 4 to both sides of the suspension crossbeam, so that the two ends of the suspension crossbeam are moved between the first clamping block 18 and the second clamping block 19. Then, the first electric push rod 25 is started to push the second clamping block 19 and the connecting block 20 to move, so that the second clamping block 19 moves to the top of the suspension crossbeam. At the same time, the electric telescopic plate 23 extends and retracts, so that the second clamping block 19 fits between the top of the suspension crossbeam and the bottom of the electric telescopic plate 23, supporting and limiting the second clamping block 19, and improving the stability of the clamping and limiting of the suspension crossbeam by the first clamping block 18 and the second clamping block 19. After the suspension crossbeam is clamped and fixed, holes are drilled in the suspension crossbeam for processing.

[0036] When it is necessary to clamp and fix the hollow tube suspension crossbeam, first activate the first electric push rod 25 to move the second clamping block 19 to the top of the fixing block 4, so that the second electric push rod 26 retracts and is no longer inserted with the first electric push rod 25. At the same time, the first electric push rod 25 retracts and separates from the second clamping block 19. Rotate the second clamping block 19 to rotate it to a vertical position and insert it with the limiting block 22. Activate the second electric push rod 26 again to insert it with the limiting slot of the limiting block 22 to fix the position of the second clamping block 19. Remove the flat plate suspension crossbeam and move the protective block 16 away from the fixing block 4, so that the protective block 16 drives the mounting bracket 24 and the first electric push rod 25. As the movable rod 17 moves away from the movable plate 3, the third spring stretches. When the arc-shaped block 21 is fully exposed, the second electric push rod 26 inside the movable plate 3 retracts and is no longer inserted into the fixed rod 10. The fixed block 4 then moves upward, causing the fixed rod 10 to drive the connecting plate 11 and the push rod 12 to move upward. This causes the push rod 12 to drive the round convex to move upward synchronously. At the same time, the telescopic rod 8 at the bottom of the fixed block 4 and the first spring 9 stretch. When the fixed rod 10 moves out of the movable plate 3, the push rod 12 and the round convex no longer press against the push block 13. The push block 13 moves towards the fixed rod 10. Under the action of the second spring 15, the limiting rod 14 moves from the movable groove to the concave groove. Inside the slot, the telescopic rod 8 is no longer inserted, releasing the restriction on the telescopic rod 8. Then, the fixing block 4 is rotated. After the fixing block 4 rotates 180°, the clamping parts on both sides of the fixing block 4 are interchanged. Then, the fixing block 4 is moved downward. Under the action of the second spring 15, the telescopic rod 8 retracts, and the fixing block 4 drives the fixing rod 10 and the connecting plate 11 to move towards the movable plate 3. When the bottom of the fixing block 4 is in contact with the top of the movable plate 3, the telescopic rod 8 and the first spring 9 return to their original state, and the fixing rod 10 is inserted into the movable plate 3. The round protrusion of the push rod 12 slides to the bottom along the inclined surface of the push block 13, pushing the push block 13 to return to its horizontal position closer to the telescopic rod 8, so that the second spring 15... Under the action of the second spring 15, the compression limiting rod 14 is reinserted into the fixed end of the telescopic rod 8 to limit the telescopic rod 8. At the same time, after the fixed rod 10 rotates 180 degrees, it extends through the second electric push rod 26 in the movable plate 3 and inserts into the fixed rod 10, so that the fixed rod 10 and the movable plate 3 are fixed again by the limiting component, and the posture of the fixed block 4 is completely locked. The moving protective block 16, under the action of the third spring, causes the movable rod 17 to move into the movable plate 3, and one side of the protective block 16 fits against the fixed block 4 to protect the first clamping block 18 and the second clamping block 19. At the same time, the mounting bracket 24 and the first electric push rod 25 move to their original positions, thereby completing the switching of the two clamping components.

[0037] Next, place the hollow tube suspension crossbeam on the mounting base 2. The driving mechanism causes the moving block 5 to move the movable plate 3 and the fixed block 4, moving the arc block 21 to both sides of the hollow tube suspension crossbeam to position the hollow tube suspension crossbeam. Then, drill holes in the fixed hollow tube suspension crossbeam and continue processing.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A drilling and positioning device for machining the suspension crossbeam of a rescue vehicle, characterized in that, include: The base (1) has a mounting seat (2) fixedly installed on its top. The mounting seat (2) is provided with a positioning mechanism for clamping the suspension beam. The drive mechanism is located inside the mounting base (2) and is used to adjust the position of the positioning mechanism; The positioning mechanism includes: A movable plate (3) is connected to a drive mechanism, and a fixed block (4) is rotatably provided on the movable plate (3). Two clamping parts are respectively set on both sides of the fixing block (4) to fit and fix the suspension crossbeam; The rotating mechanism is set on the movable plate (3) and the fixed block (4) and is used to switch the clamping parts on both sides of the fixed block (4).

2. The drilling and positioning device for processing the suspension crossbeam of a rescue vehicle according to claim 1, characterized in that: The driving mechanism includes a driving component and a moving block (5). The mounting base (2) has a mounting groove. The driving component is located in the mounting groove. The driving component is provided with two moving blocks (5). The top of each of the two moving blocks (5) has a movable groove. A telescopic rod (8) is rotatably connected in the movable groove. The telescopic rod (8) passes through the movable plate (3) and is fixedly connected to the bottom of the fixed block (4). A first spring (9) is provided in the telescopic rod (8). The two ends of the first spring (9) are fixedly connected to the inner wall of the bottom of the movable groove and the bottom of the fixed block (4), respectively.

3. The drilling and positioning device for processing the suspension crossbeam of a rescue vehicle according to claim 2, characterized in that: The rotating mechanism includes a fixed rod (10), a limiting member and a limiting structure. The fixed rod (10) is fixedly connected to both sides of the bottom of the fixed block (4). The fixed rod (10) is inserted into the movable plate (3). The fixed rod (10) and the movable plate (3) are connected by the limiting member. The fixed rod (10) is located on both sides of the telescopic rod (8), and a limiting structure is provided between the fixed rod (10) and the telescopic rod (8).

4. The drilling and positioning device for processing the suspension crossbeam of a rescue vehicle according to claim 3, characterized in that: The limiting structure includes a connecting plate (11), a push rod (12), a push block (13), and a limiting rod (14). The connecting plate (11) is fixedly connected to the fixed rod (10). The bottom of the connecting plate (11) is fixedly connected to the push rod (12). The bottom of the push rod (12) is provided with a push block (13). The pushing block (13) is fixedly connected to the limiting rod (14) on the side away from the fixed rod (10). The limiting rod (14) is inserted into the fixed end of the telescopic rod (8).

5. The drilling and positioning device for processing the suspension crossbeam of a rescue vehicle according to claim 4, characterized in that: The movable plate (3) has grooves on both sides, the grooves are connected to the movable slot, the push block (13) is movably connected to the inner wall of the groove, the bottom of the push rod (12) is provided with a round protrusion, the side of the push block (13) near the round protrusion is an inclined surface, and the round protrusion is located at the bottom end of the inclined surface.

6. The drilling and positioning device for processing the suspension crossbeam of a rescue vehicle according to claim 5, characterized in that: A second spring (15) is provided in the middle of the limiting rod (14). The limiting rod (14) extends through the groove into the movable groove. The fixed rod (10), connecting plate (11), push rod (12), moving block (5), limiting rod (14) and second spring (15) are arranged symmetrically with respect to the center of the telescopic rod (8).

7. The drilling and positioning device for processing the suspension crossbeam of a rescue vehicle according to claim 6, characterized in that: Protective blocks (16) are provided on the outside of the clamping parts on both sides of the mounting base (2). Two movable rods (17) are fixedly connected to the bottom of the protective blocks (16). The movable rods (17) are movably connected to the movable plate (3). A third spring is sleeved on the outside of the movable rods (17). The movable rods (17) are located on both sides of the fixed rod (10).

8. The drilling and positioning device for processing the suspension crossbeam of a rescue vehicle according to claim 7, characterized in that: The clamping component includes a first clamping block (18), a second clamping block (19), a connecting block (20), and an arc-shaped block (21). The first clamping block (18) is fixedly connected to the bottom end of one side of the fixed block (4). The connecting block (20) is movably connected inside the first clamping block (18). The top of the connecting block (20) is rotatably connected to the second clamping block (19) via a rotating shaft. The second clamping block (19) is located at the top of the fixed block (4). The top of the fixed block (4) is inserted into the second clamping block (19) via a limiting block (22). The bottom end of the other side of the fixed block (4) is fixedly connected to the arc-shaped block (21).

9. The drilling and positioning device for processing the suspension crossbeam of a rescue vehicle according to claim 8, characterized in that: An electric telescopic plate (23) is fixedly connected inside the first clamping block (18). The electric telescopic plate (23) is located on the side of the connecting block (20) away from the fixed block (4). The second clamping block (19) is set perpendicular to the fixed block (4), and one end of the connecting block (20) near the center of the mounting base (2) is located at the top of the first clamping block (18). The top of the electric telescopic plate (23) abuts against the bottom of the second clamping block (19).

10. The drilling and positioning device for processing the suspension crossbeam of a rescue vehicle according to claim 9, characterized in that: The top of the protective block (16) is fixedly connected to a mounting bracket (24), which is L-shaped. The bottom of the mounting bracket (24) is fixedly connected to a first electric push rod (25), which is located on the top of the second clamping block (19) and is connected to the second clamping block (19) by a fastener.

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