Positioning device for longitudinal beam on lower portion of floor

Abstract

The utility model discloses a floor lower longitudinal beam positioning device, which relates to the technical field of automobile production and comprises a positioning base body, an adjusting mechanism is fixedly mounted at the top of the positioning base body, a longitudinal beam fixing mechanism is arranged at the top of the adjusting mechanism, and the positioning base body comprises a base box. The base box is provided with a positioning driving cabin, a positioning motor is fixedly installed on the left side of the base box, an output shaft of the positioning motor penetrates into an inner cavity of the positioning driving cabin and is fixedly provided with a right-hand and left-hand threaded rod, and threaded walls with opposite threads are arranged on the left side and the right side of the outer wall of the right-hand and left-hand threaded rod correspondingly; and movable plates are mounted on the outer walls of the two threaded walls in a threaded manner. The base plate and the longitudinal beam clamp main body are matched with each other, so that the longitudinal beams with different widths can be stably clamped and positioned, and the applicability of the positioning device for fixing the types of the longitudinal beams is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile production, in particular to a positioning device for a longitudinal beam under a floor. Background Art

[0002] The front floor longitudinal beam is an important component of the lower body frame. Its main function is to support the overall structure of the vehicle body, transmit collision energy, and ensure sufficient rigidity of the vehicle body. Generally, the front floor longitudinal beam consists of the front floor longitudinal beam and longitudinal beam connectors. It is straight. The front end of the front floor longitudinal beam is connected to the rear section of the front cabin longitudinal beam, and the rear end of the front floor longitudinal beam is staggered with the rear floor longitudinal beam. Both floor longitudinal beams are welded and reinforced to the vehicle chassis using welding technology. The existing technology has the following problems:

[0003] When welding the underfloor longitudinal beam to the chassis, it needs to be precisely positioned using a positioning device and fixed in a specified position before welding can proceed. However, existing positioning devices for underfloor longitudinal beams are difficult to adapt to underfloor longitudinal beams of different sizes and cannot stably fix them according to the different sizes of underfloor longitudinal beams. As a result, the positioning devices are less usable and cannot adapt to the different sizes of underfloor longitudinal beams of different vehicles. Utility Model Content

[0004] The utility model provides a positioning device for a longitudinal beam under a floor, so as to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] The top of the two movable plates are connected with the support frame, and the top center of the two movable plates is connected with the support frame, and the two movable plates are connected with the support frame.

[0007] The adjustment mechanism includes an L-shaped adjustment plate 1 and an L-shaped adjustment plate 2. The bottoms of the L-shaped adjustment plate 1 and the L-shaped adjustment plate 2 are fixedly connected to the tops of the two movable plates respectively. The opposite back surfaces of the two L-shaped adjustment plates 1 are fixedly installed with L-shaped positioning plates. Roller grooves are provided above the vertical opposite surfaces of the two L-shaped positioning plates. Rollers are movably installed between the front and rear sides of the inner walls of the two roller grooves. The tops of the L-shaped adjustment plate 1 and the L-shaped adjustment plate 2 are both provided with a driving telescopic mechanism.

[0008] A further improvement of the technical solution of the present utility model is that: the driving telescopic mechanism includes a telescopic mechanism, a driving box is provided on the right side of the telescopic mechanism, a rotating motor is fixedly installed on the top of the inner wall of the driving box, a gear is fixedly installed on the output shaft of the rotating motor, a rack groove is opened on the left side of the vertical part of the second L-shaped adjustment plate, a rack is fixedly installed on the right side of the inner wall of the rack groove, and the right end of the gear passes through the right side of the driving box and engages with the left side of the rack.

[0009] A further improvement of the technical solution of the present utility model is that a limiting slide groove is provided on the right side of the vertical part of the L-shaped adjustment plate, a limiting slide rod is fixedly installed between the front and rear sides of the inner wall of the limiting slide groove, a connecting block is provided on the left side of the telescopic mechanism, a slider is fixedly installed on the left side of the connecting block, and the slider is slidably connected to the limiting slide rod.

[0010] A further improvement of the technical solution of the present utility model is that: the telescopic mechanism includes a telescopic box, the right side of the telescopic box is fixedly connected to the left side of the driving box, the inner cavity of the telescopic box is slidably installed with a limit plate, the left side of the limit plate is fixedly installed with a telescopic plate, and the left end of the telescopic plate is fixedly connected to the right side of the connecting block.

[0011] A further improvement of the technical solution of the present utility model is that: the longitudinal beam fixing mechanism includes two width adjustment plates, and the two width adjustment plates are respectively fixedly mounted on the top of the connecting block and the driving box, and the top of the two width adjustment plates is provided with a slide groove, and the opposite surfaces of the inner walls of the two slide grooves are fixedly mounted with motors, and the output shafts of the two motors are fixedly mounted with a threaded rod, and the outer walls of the two threaded rods are threadedly mounted with adjustment blocks, and the tops of the two adjustment blocks are fixedly mounted with base plates, and longitudinal beam clamp bodies are provided on the front and rear sides of the tops of the two base plates.

[0012] A further improvement of the technical solution of the present utility model is that: the longitudinal beam clamp body includes a vertical plate, the vertical plate is fixedly connected to the top of the base plate, a placement plate is fixedly installed on the top of the vertical plate, a slide groove 2 is opened on the top of the placement plate, a bidirectional axis motor is fixedly installed in the middle of the inner cavity of the slide groove 2, and the left and right output shafts of the bidirectional axis motor are respectively fixedly installed with two threaded rods with opposite threads, the outer walls of the two threaded rods are threadedly installed with clamping movable plates, and the tops of the two clamping movable plates are fixedly installed with longitudinal beam clamps.

[0013] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0014] 1. The utility model provides a positioning device for the longitudinal beam under the floor. Through the mutual cooperation between the base plate and the longitudinal beam clamp body, longitudinal beams of different widths can be stably clamped and positioned, thereby improving the applicability of the positioning device for fixing longitudinal beam types.

[0015] 2. The utility model provides a positioning device for the longitudinal beam under the floor. Through the mutual cooperation between the positioning base body, L-shaped adjustment plate 1, L-shaped adjustment plate 2, and width adjustment plate, the overall positioning device can be quickly fixed to the bottom of the frame, and the front and rear positions and spacing of the longitudinal beam to be fixed can be adjusted quickly and conveniently, thereby improving the positioning efficiency and applicability to different vehicle chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the positioning base body and adjustment mechanism of the utility model structure;

[0018] Figure 3 This is a cross-sectional diagram of an L-shaped adjustment plate 1 and an L-shaped adjustment plate 2 of the structure of the present invention;

[0019] Figure 4 Schematic diagram of the telescopic mechanism of the utility model

[0020] Figure 5 This is a schematic diagram of the width adjustment plate of the utility model structure;

[0021] Figure 6 This is a schematic diagram of the longitudinal beam clamp main body of the utility model structure.

[0022] In the figure: 1. Positioning base body; 11. Base box; 12. Positioning drive cabin; 13. Clamping slide; 14. Positioning motor; 15. Positive and negative threaded rod; 16. Moving plate; 17. Support leg; 2. Adjustment mechanism; 21. L-shaped adjustment plate 1; 211. Limiting slide; 212. Limiting slide; 22. L-shaped adjustment plate 2; 221. Rack groove; 222. Rack; 23. Driving telescopic mechanism; 231. Telescopic mechanism; 2311. Telescopic box; 2312. Limiting plate; 2313. Telescopic plate; 232. Connecting block ; 233. Drive box; 2331. Rotating motor; 2332. Gear; 234. Slider; 24. L-shaped positioning plate; 25. Roller groove; 26. Roller; 3. Longitudinal beam fixing mechanism; 31. Width adjustment plate; 32. Slide groove one; 33. Motor; 34. Threaded rod one; 35. Adjustment block; 36. Base plate; 37. Longitudinal beam fixture body; 371. Vertical plate; 372. Placement plate; 373. Slide groove two; 374. Bidirectional axis motor; 375. Threaded rod two; 376. Clamping movable plate; 377. Longitudinal beam splint. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1 、 Figure 2As shown, the utility model provides a positioning device for the longitudinal beam under the floor, including a positioning base body 1, an adjusting mechanism 2 is fixedly installed on the top of the positioning base body 1, a longitudinal beam fixing mechanism 3 is provided on the top of the adjusting mechanism 2, the positioning base body 1 includes a base box 11, the base box 11 is provided with a positioning drive cabin 12, a positioning motor 14 is fixedly installed on the left side of the base box 11, the output shaft of the positioning motor 14 passes through the inner cavity of the positioning drive cabin 12 and is fixedly installed with a positive and negative threaded rod 15, the outer wall of the positive and negative threaded rod 15 is respectively provided with threaded walls with opposite threads on the left and right sides, and the outer walls of the two threaded walls are threadedly installed with a movable plate 16, the top of the base box 11 is provided with a clamping groove 13 that passes through its inner cavity, and the two movable plates 16 are fixed with a plurality of movable plates 16. The center of the top is penetrated by the clamping slide 13 to the top of the base box 11, and two supporting legs 17 are fixedly installed on the front and rear sides of the base box 11 to facilitate the overall positioning base body 1 to be lifted off the ground. The adjustment mechanism 2 includes an L-shaped adjustment plate 1 21 and an L-shaped adjustment plate 22. The bottoms of the L-shaped adjustment plate 1 21 and the L-shaped adjustment plate 22 are respectively fixedly connected to the tops of the two movable plates 16. The opposite back surfaces of the two L-shaped adjustment plates 21 are fixedly installed with L-shaped positioning plates 24. Roller grooves 25 are provided above the vertical opposite surfaces of the two L-shaped positioning plates 24. Rollers 26 are movably installed between the front and rear sides of the inner walls of the two roller grooves 25. The tops of the L-shaped adjustment plates 1 21 and the L-shaped adjustment plates 22 are both provided with a driving telescopic mechanism 23;

[0025] By starting the positioning motor 14 output shaft on the left side of the base box 11 to rotate forward or reverse, the forward and reverse threaded rods 15 in the positioning drive cabin 12 can be driven to rotate forward and reverse, so that the movable plates 16 on the outer walls of the opposite threaded walls on the left and right sides of the outer wall of the forward and reverse threaded rods 15 can be separated from or approached to each other, and the L-shaped adjustment plate 1 21 and the L-shaped adjustment plate 2 22 connected to the clamping groove 13 at the top can be used to allow them to move closer to or separate from each other as a whole. At the same time, when the L-shaped adjustment plate 1 21 and the L-shaped adjustment plate 22 move, they can drive the L-shaped positioning plates 24 installed on their respective sides to move closer to each other, clamping the left and right sides of the frame, so that the L-shaped adjustment plate 1 21 and the L-shaped adjustment plate 2 22 are stabilized under the bottom of the frame, and then the frame is slowly lowered, and the contact between the roller 26 and the frame is used to reduce friction until the chassis contacts the top of the clamped longitudinal beam and stops.

[0026] like Figure 3 、 Figure 4As shown, the driving telescopic mechanism 23 includes a telescopic mechanism 231, a driving box 233 is provided on the right side of the telescopic mechanism 231, a rotating motor 2331 is fixedly installed on the top of the inner wall of the driving box 233, and a gear 2332 is fixedly installed on the output shaft of the rotating motor 2331. A rack groove 221 is provided on the left side of the vertical part of the L-shaped adjustment plate 22, and a rack 222 is fixedly installed on the right side of the inner wall of the rack groove 221. The right end of the gear 2332 passes through the right side of the driving box 233 and meshes with the left side of the rack 222. A limiting slide groove 211 is provided on the right side of the vertical part of the L-shaped adjustment plate 1 21. A limit slide bar 212 is fixedly installed between the front and rear sides of the inner wall of the slide groove 211. A connecting block 232 is provided on the left side of the telescopic mechanism 231. A slider 234 is fixedly installed on the left side of the connecting block 232. The slider 234 is slidably connected to the limit slide bar 212. The telescopic mechanism 231 includes a telescopic box 2311. The right side of the telescopic box 2311 is fixedly connected to the left side of the driving box 233. A limit plate 2312 is slidably installed in the inner cavity of the telescopic box 2311. A telescopic plate 2313 is fixedly installed on the left side of the limiting plate 2312. The left end of the telescopic plate 2313 is fixedly connected to the right side of the connecting block 232.

[0027] When the L-shaped adjusting plate 1 21 and the L-shaped adjusting plate 22 move left and right, the extension plate 2313 slidably connected in the extension box 2311 can be used to maintain stability, and the limit plate 2312 can be used to prevent the extension plate 2313 from falling off. At the same time, the rotating motor 2331 in the drive box 233 can be started to drive the gear 2332 to rotate, thereby cooperating with the rack 222 in the rack groove 221 to mesh with the rack 222, thereby driving the top width adjusting plate 31 together with the longitudinal beam clamp body 37 and the connecting block 232 connected by the extension mechanism 231 to move forward and backward together with the longitudinal beam clamp body 37, and when moving, the slider 234 on the left side of the connecting block 232 can slide on the outer wall of the limiting slide rod 212 in the limiting slide groove 211 to maintain the stability of the forward and backward movement, thereby facilitating the forward and backward adjustment of the longitudinal beam after the L-shaped adjusting plate 1 21 and the L-shaped adjusting plate 22 are positioned at the bottom of the frame.

[0028] like Figure 5 、 Figure 6As shown, the longitudinal beam fixing mechanism 3 includes two width adjustment plates 31, and the two width adjustment plates 31 are fixedly mounted on the top of the connecting block 232 and the driving box 233 respectively. The top of the two width adjustment plates 31 is provided with a slide groove 32, and the opposite surfaces of the inner walls of the two slide grooves 32 are fixedly mounted with motors 33. The output shafts of the two motors 33 are fixedly mounted with threaded rods 34, and the outer walls of the two threaded rods 34 are threadedly mounted with adjustment blocks 35. The tops of the two adjustment blocks 35 are fixedly mounted with base plates 36, and the tops of the two base plates 36 are provided with longitudinal beam clamp main bodies on both sides. The longitudinal beam fixture body 37 includes a vertical plate 371, which is fixedly connected to the top of the base plate 36. A placement plate 372 is fixedly installed on the top of the vertical plate 371. A second slide 373 is provided on the top of the placement plate 372. A bidirectional axis motor 374 is fixedly installed in the middle of the inner cavity of the second slide 373. The left and right output shafts of the bidirectional axis motor 374 are respectively fixedly installed with two threaded rods 375 with opposite threads. The outer walls of the two threaded rods 375 are threadedly installed with clamping and moving plates 376. The tops of the two clamping and moving plates 376 are fixedly installed with longitudinal beam clamping plates 377.

[0029] When in use, it is necessary to first place the two longitudinal beams on the two placement plates 372 on the top of the two base plates 36 respectively, and then by simultaneously starting the bidirectional axis motor 374 in the slide slot 2 373, the threaded rod 2 375 with opposite threads fixedly connected to the output shafts on the left and right sides can be driven to rotate, thereby driving the two clamping moving plates 376 to approach each other, and finally driving the two longitudinal beam clamps 377 to clamp and fix the longitudinal beams. Then, by lifting the frame and moving the overall positioning device to the bottom of the frame chassis, by simultaneously starting the motor 33 in the slide slot 1 32 on the top of the two width adjustment plates 31, the threaded rod 1 34 can be driven to rotate, and the adjustment block 35 installed with the thread on its outer wall can drive the two base plates 36 to move relative to each other, which is convenient for adjusting the width between the longitudinal beams fixed by the two longitudinal beam clamp bodies 37 on the top of the two base plates 36. After the position is finally determined, welding or connection with the front and rear anti-collision beams can be carried out.

[0030] The working principle of the positioning device of the lower longitudinal beam of the floor will be described in detail below.

[0031] like Figure 1-5As shown, when in use, the two longitudinal beams need to be placed on the two placement plates 372 on the top of the two base plates 36 respectively, and then by simultaneously starting the two-way shaft motor 374 in the second slide slot 373, the threaded rod 375 with opposite threads fixedly connected to the output shafts on the left and right sides can be driven to rotate, thereby driving the two clamping moving plates 376 to approach each other, and finally driving the two longitudinal beam clamping plates 377 to clamp and fix the longitudinal beams, and then by lifting the frame and moving the entire positioning device to the bottom of the frame chassis, and then starting the positioning motor 14 on the left side of the base box 11 to rotate forward or reverse, the forward and reverse threaded rods 15 in the positioning drive cabin 12 can be driven forward and reverse, so that The movable plates 16 on the outer walls of the opposite threaded walls on the left and right sides of the outer walls of the positive and negative threaded rods 15 are separated from or approached to each other, and the L-shaped adjustment plates 1 and 2, which are connected by the clamping grooves 13 at the top, are used to allow them to move closer to or separate from each other as a whole. At the same time, when the L-shaped adjustment plates 1 and 2 move, they can drive the L-shaped positioning plates 24 installed on their respective sides to move closer to each other, clamping the left and right sides of the frame so that the L-shaped adjustment plates 1 and 2, 22, are stabilized under the bottom of the frame, and then the frame is slowly lowered, and the contact between the rollers 26 and the frame is used to reduce friction until the chassis contacts the top of the clamped longitudinal beam and stops. When the L-shaped adjustment plate 1 21 and the L-shaped adjustment plate 22 move left and right, the telescopic plate 2313 slidably connected in the telescopic box 2311 can be used to maintain stability, and the limit plate 2312 can be used to prevent the telescopic plate 2313 from falling off. At the same time, the rotating motor 2331 in the driving box 233 can be started to drive the gear 2332 to rotate, thereby engaging with the rack 222 in the rack groove 221, thereby driving the top width adjustment plate 31 together with the longitudinal beam fixture body 37 and the connecting block 232 connected by the telescopic mechanism 231 together with the top width adjustment plate 31 and the longitudinal beam fixture body 37 to move forward and backward, and when moving, the connecting block 232 can be used to The slider 234 on the left side of 32 slides on the outer wall of the limiting slide rod 212 in the limiting slide groove 211 to maintain the stability of the forward and backward movement, so that the L-shaped adjustment plate 1 21 and the L-shaped adjustment plate 2 22 can be positioned at the bottom of the frame to adjust the longitudinal beam forward and backward. By simultaneously starting the motor 33 in the slide groove 1 32 at the top of the two width adjustment plates 31, the threaded rod 1 34 can be driven to rotate, and the adjustment block 35 installed with threads on its outer wall can drive the two base plates 36 to move relative to each other, so as to facilitate the adjustment of the width between the longitudinal beams fixed by the two longitudinal beam clamp bodies 37 on the top of the two base plates 36. After the position is finally determined, welding or connection with the front and rear anti-collision beams can be carried out.

[0032] While the present invention has been generally described above, it is readily apparent to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A positioning device for a longitudinal beam under a floor, comprising a positioning base body (1), characterized in that: The top of the positioning base body (1) is fixedly installed with an adjustment mechanism (2), and the top of the adjustment mechanism (2) is provided with a longitudinal beam fixing mechanism (3). The positioning base body (1) includes a base box (11), and the base box (11) is provided with a positioning drive cabin (12). A positioning motor (14) is fixedly installed on the left side of the base box (11), and the output shaft of the positioning motor (14) passes through the inner cavity of the positioning drive cabin (12) and is fixedly installed with a positive and negative threaded rod (15). The outer wall of the positive and negative threaded rod (15) is provided with threaded walls with opposite threads on the left and right sides respectively, and the outer walls of the two threaded walls are threadedly installed with a movable plate (16). The top of the base box (11) is provided with a clamping groove (13) passing through its inner cavity, and the top centers of the two movable plates (16) pass through the clamping groove (13) to the top of the base box (11), and two supporting legs (17) are fixedly installed on the front and back sides of the base box (11); The adjustment mechanism (2) includes an L-shaped adjustment plate (21) and an L-shaped adjustment plate (22). The bottoms of the L-shaped adjustment plate (21) and the L-shaped adjustment plate (22) are fixedly connected to the tops of the two movable plates (16) respectively. L-shaped positioning plates (24) are fixedly installed on the opposite back surfaces of the two L-shaped adjustment plates (21). Roller grooves (25) are provided above the vertical opposite surfaces of the two L-shaped positioning plates (24). Rollers (26) are movably installed between the front and rear sides of the inner walls of the two roller grooves (25). A driving telescopic mechanism (23) is provided on the tops of the L-shaped adjustment plate (21) and the L-shaped adjustment plate (22).

2. The positioning device for a lower floor longitudinal beam according to claim 1, characterized in that: The driving telescopic mechanism (23) includes a telescopic mechanism (231), a driving box (233) is provided on the right side of the telescopic mechanism (231), a rotating motor (2331) is fixedly installed on the top of the inner wall of the driving box (233), and a gear (2332) is fixedly installed on the output shaft of the rotating motor (2331), a rack groove (221) is provided on the left side of the vertical part of the second L-shaped adjustment plate (22), a rack (222) is fixedly installed on the right side of the inner wall of the rack groove (221), and the right end of the gear (2332) passes through the right side of the driving box (233) and meshes with the left side of the rack (222).

3. The positioning device for a lower floor longitudinal beam according to claim 2, characterized in that: A limiting slide groove (211) is provided on the right side of the vertical portion of the L-shaped adjustment plate (21), and a limiting slide bar (212) is fixedly installed between the front and rear sides of the inner wall of the limiting slide groove (211). A connecting block (232) is provided on the left side of the telescopic mechanism (231), and a sliding block (234) is fixedly installed on the left side of the connecting block (232), and the sliding block (234) is slidably connected to the limiting slide bar (212).

4. The positioning device for a lower floor longitudinal beam according to claim 3, characterized in that: The telescopic mechanism (231) includes a telescopic box (2311), the right side of the telescopic box (2311) is fixedly connected to the left side of the driving box (233), a limiting plate (2312) is slidably installed in the inner cavity of the telescopic box (2311), a telescopic plate (2313) is fixedly installed on the left side of the limiting plate (2312), and the left end of the telescopic plate (2313) is fixedly connected to the right side of the connecting block (232).

5. The positioning device for a lower floor longitudinal beam according to claim 4, characterized in that: The longitudinal beam fixing mechanism (3) includes two width adjustment plates (31), the two width adjustment plates (31) are fixedly mounted on the top of the connecting block (232) and the driving box (233), the tops of the two width adjustment plates (31) are each provided with a slide groove (32), the inner walls of the two slide grooves (32) are oppositely fixedly mounted with a motor (33), the output shafts of the two motors (33) are each fixedly mounted with a threaded rod (34), the outer walls of the two threaded rods (34) are each threadedly mounted with an adjustment block (35), the tops of the two adjustment blocks (35) are each fixedly mounted with a base plate (36), and the front and rear sides of the tops of the two base plates (36) are each provided with a longitudinal beam clamp body (37).

6. The positioning device for a lower floor longitudinal beam according to claim 5, characterized in that: The longitudinal beam clamp body (37) includes a vertical plate (371), the vertical plate (371) is fixedly connected to the top of the base plate (36), the top of the vertical plate (371) is fixedly installed with a placement plate (372), the top of the placement plate (372) is provided with a second slide groove (373), the middle part of the inner cavity of the second slide groove (373) is fixedly installed with a bidirectional axis motor (374), the left and right output shafts of the bidirectional axis motor (374) are respectively fixedly installed with two threaded rods (375) with opposite threads, the outer walls of the two threaded rods (375) are threadedly installed with clamping movable plates (376), and the tops of the two clamping movable plates (376) are fixedly installed with longitudinal beam clamps (377).

Images