A pallet for automobile chassis production

Abstract

The present invention discloses a tray for automobile chassis production, which relates to the technical field of automobile production. It includes a base, on the top of which an installation plate is fixedly connected. The installation plate is provided with a plurality of installation holes, and a plurality of adjusting components are arranged on the installation plate. The adjusting component includes an installation plate connected to the installation plate by bolts. A first adjusting bar is fixedly connected to the installation plate. A first sliding sleeve is slidably connected to the first adjusting bar. A second adjusting bar is fixedly connected to the top of the first sliding sleeve. A second fastening bolt is threadedly connected to the second sliding sleeve. A motor is fixedly connected to the top of the second sliding sleeve. A threaded rod is fixedly connected to the output shaft of the motor. A card slot is opened at the top of the threaded rod. Through the movement of the second adjusting bar and the second sliding sleeve, the threaded rod can move synchronously. At this time, the threaded rod will drive the fixed head to move synchronously through the threaded sleeve, and then the position of the bolt can be adjusted to achieve the purpose of installing different models of automobile chassis, improving the flexibility of installing the automobile chassis and having stronger applicability.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile production, and more particularly to a pallet for automobile chassis production. Background Art

[0002] During the process of automobile production, the main components of the automobile are concentrated on the chassis. Therefore, when assembling the automobile, the engine, subframe bracket, suspension system components, braking system components, fuel tank and fuel pipe, etc. of the automobile will be placed on the pallet first. The existing pallet is mainly used to position the components of the automobile chassis in automobile assembly production. After preliminary assembly on the pallet, it is then integrally installed with the vehicle body. The pallet is designed with specific positioning devices, and the positioning device is a device for electrically screwing bolts, which can ensure that these components can be accurately placed in the predetermined position during assembly;

[0003] Generally, the positioning device on the existing pallet is difficult to adjust its position and cannot be installed on different models of automobile chassis, resulting in poor applicability of the device and low flexibility in installing the automobile chassis. Therefore, a pallet for automobile chassis production is proposed. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a pallet for automobile chassis production.

[0005] The technical solution is as follows:

[0006] A pallet for automobile chassis production includes a base, an installation plate is fixedly connected to the top of the base, a plurality of installation holes are opened on the installation plate, and a plurality of adjusting components are arranged on the installation plate. The adjusting component includes an installation plate connected to the installation plate by bolts, a first adjusting bar is fixedly connected to the installation plate, a first sliding sleeve is slidably connected to the first adjusting bar, a first fastening bolt is threadedly connected to the first sliding sleeve, a second adjusting bar is fixedly connected to the top of the first sliding sleeve, a second sliding sleeve is slidably connected to the second adjusting bar, a second fastening bolt is threadedly connected to the second sliding sleeve, a motor is fixedly connected to the top of the second sliding sleeve, a threaded rod is fixedly connected to the output shaft of the motor, a card slot is opened at the top of the threaded rod, a threaded sleeve is threadedly connected to the outside of the threaded rod, a fixing head is fixedly connected to the top of the threaded sleeve, a placement groove is opened at the top of the fixing head, a limiting groove is opened in the threaded sleeve, a stabilizing rod is fixedly connected to the outside of the threaded sleeve, a clamping rod is slidably connected in the threaded sleeve, the shape of the clamping rod is adapted to the card slot, the clamping rod passes through the limiting groove and is slidably connected to the stabilizing rod, and a second spring is arranged between the clamping rod and the stabilizing rod.

[0007] Further, it further includes a positioning component. The positioning component includes an electric slide rail fixedly connected to the middle of the base. An electric slider is slidably connected inside the electric slide rail. Two slide bar 1s are fixedly connected to the top of the electric slider. Two slide plates are slidably connected between the two slide bar 1s. Two guide rods are fixedly connected to both slide plates. The end of the guide rod far from the connection with the slide plate passes through the adjacent slide bar 1 and is slidably connected to the adjacent slide bar 1. A first spring is sleeved on the outer surface of the guide rod. The two ends of the first spring are respectively fixedly connected to the outer surface of the guide rod and the adjacent slide bar 1. One hinge is fixedly connected to the upper surface of each of the two slide plates. One support rod is rotatably connected to each of the two hinges. The tops of the two support rods are jointly rotatably connected to a placement table. Four slide bar 2s are fixedly connected to the lower surface of the placement table. The slide bar 2s are grouped in two. One positioning frame is slidably connected to each of the two groups of slide bar 2s. The positioning frame consists of two spring telescopic rods and a flat plate. The spring telescopic rods are slidably connected to the slide bar 2s. Two telescopic frames are fixedly connected to each hinge. The telescopic frames on the two hinges are arranged corresponding to the positions of the two positioning frames respectively. The top of the telescopic frame is fixedly connected to the spring telescopic rod of the adjacent positioning frame. Two electric telescopic rods are symmetrically and fixedly connected to the bottom of the placement table. A positioning rod is fixedly connected to the telescopic shaft of the electric telescopic rod.

[0008] Further, a pressure sensor is fixedly connected to the surface of the positioning rod close to the electric telescopic rod.

[0009] Further, a first fastening groove is formed in the first adjusting strip. One end of the first fastening bolt close to the first adjusting strip abuts against the first fastening groove.

[0010] Further, a second fastening groove is formed in the second adjusting strip. One end of the second fastening bolt close to the second adjusting strip abuts against the second fastening groove.

[0011] Further, a baffle for restricting the movement of the first sliding sleeve is fixedly connected to the first adjusting strip, and a baffle for restricting the movement of the second sliding sleeve is fixedly connected to the second adjusting strip.

[0012] Further, the card slot is set in a cross shape, and the shape of the card rod is adapted to the card slot.

[0013] As described above, the beneficial effects of the present invention are as follows:

[0014] By pushing the subframe bracket placed on the placement table with the positioning rod, the subframe bracket is further pushed and calibrated, which is convenient for the electric slide rail to quickly drive the subframe bracket to align with the bolt placed on the fixed head, so that the bolt can be inserted into the installation hole of the subframe bracket more smoothly, further improving the installation efficiency;

[0015] Through the elastic deformation of spring one, the descending movement of the placement table can be buffered, thereby slowing down the descending speed of the subframe bracket. In cooperation with the above-mentioned positioning rod for centering and correcting the subframe bracket, it can prevent the subframe bracket from hitting the fixed head during the placement process, resulting in damage or bolt dropping, and avoid the situation of collision damage caused by too fast falling speed.

[0016] By moving the adjusting bar two and the sliding sleeve two, the threaded rod can move synchronously. At this time, the threaded rod will drive the fixed head to move synchronously through the threaded sleeve, and then the position of the bolt can be adjusted to achieve the purpose of being able to install for different models of vehicle chassis, improving the flexibility of the installation on the vehicle chassis and having stronger applicability.

[0017] Through the clamping relationship between the clamping rod and the clamping groove, the threaded sleeve cannot rotate outside the threaded rod, thereby adjusting the height of the fixed head, so as to install different models of vehicle chassis, reducing the time spent on replacing or readjusting the equipment, and thus improving the overall installation efficiency. Brief Description of the Drawings

[0018] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a three-dimensional schematic diagram of components such as the electric slide rail, mounting plate, and placement table of the present invention;

[0020] Figure 3 It is a three-dimensional schematic diagram of components such as the electric slide rail, electric slider, and chute rod one of the present invention;

[0021] Figure 4 It is a three-dimensional schematic diagram of components such as the support rod, telescopic frame, chute rod two, and positioning frame of the present invention;

[0022] Figure 5 It is a three-dimensional schematic diagram of components such as the mounting plate, adjusting bar one, and fixed head of the present invention;

[0023] Figure 6 It is a three-dimensional schematic diagram of components such as the adjusting bar one, adjusting bar two, threaded rod, and clamping groove of the present invention;

[0024] Figure 7 It is a three-dimensional schematic diagram of components such as the threaded rod, clamping rod, and placement groove of the present invention;

[0025] Figure 8 It is a three-dimensional schematic diagram of components such as the threaded sleeve, clamping rod, and limiting groove of the present invention.

[0026] Among them, the reference numerals in the present invention are:

[0027] 1, base; 2, mounting plate;

[0028] 31, Electric slide rail; 32, Electric slider; 33, First chute rod; 34, Slide plate; 35, Guide rod; 36, First spring; 37, Hinge; 38, Support rod; 39, Placing table; 310, Second chute rod; 311, Positioning frame; 312, Telescopic frame; 313, Electric telescopic rod; 314, Positioning rod;

[0029] 41, Mounting plate; 42, First adjusting strip; 43, First fastening groove; 44, First sliding sleeve; 45, First fastening bolt; 46, Second adjusting strip; 47, Second fastening groove; 48, Second sliding sleeve; 49, Second fastening bolt; 410, Threaded rod; 4101, Motor; 411, Card slot; 412, Threaded sleeve; 413, Limit groove; 414, Stabilizing rod; 415, Second spring; 416, Card rod; 417, Fixed head; 418, Placing groove. Detailed implementation mode

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] The embodiments provided by the present invention will be elaborated in detail below:

[0032] As Figures 1 to 4As shown in the figure, a tray for automobile chassis production includes a base 1. A mounting plate 2 is fixedly connected to the top of the base 1. A plurality of mounting holes arranged in a rectangular array are provided on the upper surface of the mounting plate 2. A positioning component is arranged in the middle of the mounting plate 2. The positioning component includes an electric slide rail 31 fixedly connected to the middle of the base 1. An electric slider 32 is slidably connected inside the electric slide rail 31. Two chute rods 33 are fixedly connected to the top of the electric slider 32. Two slide plates 34 are slidably connected between the two chute rods 33. Two guide rods 35 are fixedly connected to each of the two slide plates 34. The end of the guide rod 35 far from the connection with the slide plate 34 passes through the adjacent chute rod 33 and is slidably connected to the adjacent chute rod 33. A first spring 36 is sleeved on the outer surface of the guide rod 35. The two ends of the first spring 36 are respectively fixedly connected to the outer surface of the guide rod 35 and the adjacent chute rod 33. A hinge member 37 is fixedly connected to the upper surface of each of the two slide plates 34. A support rod 38 is rotatably connected to each of the two hinge members 37. The tops of the two support rods 38 are jointly rotatably connected to a placement table 39. Four chute rods 310 are fixedly connected to the lower surface of the placement table 39. Four chute rods 310 are divided into two groups. The two middle chute rods 310 are in one group, and the two chute rods 310 on both sides are in one group. A positioning frame 311 is slidably connected to each of the two groups of chute rods 310. The positioning frame 311 is composed of two spring telescopic rods and a flat plate. The spring telescopic rod is a telescopic long rod, including a fixed end and a telescopic end. The fixed end is fixedly connected to the flat plate of the positioning frame 311, and the telescopic end is slidably connected to the chute rod 310. A spring is built in between the fixed end and the telescopic end. When the spring telescopic rod is stretched, it can store energy, and then it can automatically contract when not stretched. A T-shaped groove is provided on each chute rod 310. The shape of the spring telescopic rod of the positioning frame 311 is adapted to the shape of the T-shaped groove of the chute rod 310 to prevent instability when the positioning frame 311 slides. A telescopic frame 312 is fixedly connected to both sides of each hinge member 37. The structure of the telescopic frame 312 is similar to that of the spring telescopic rod of the positioning frame 311. The telescopic frames 312 on the two hinge members 37 are arranged corresponding to the positions of the two positioning frames 311. The telescopic end at the top of the telescopic frame 312 is fixedly connected to the telescopic end of the spring telescopic rod of the corresponding positioning frame 311. Two electric telescopic rods 313 are symmetrically and fixedly connected to the bottom of the placement table 39. A positioning rod 314 is fixedly connected to the telescopic shaft at the end of the electric telescopic rod 313 away from each other. A pressure sensor is fixedly connected to the side of the positioning rod 314 close to the electric telescopic rod 313.

[0033] As Figure 1 and Figures 5 to 8As shown in the figure, a plurality of adjusting components are arranged on the mounting disk 2. The adjusting component includes a mounting plate 41 fixedly connected to the mounting disk 2 by bolts. A first adjusting bar 42 is fixedly connected to the upper surface of the mounting plate 41. First fastening grooves 43 are formed on both sides of the first adjusting bar 42. Two first sliding sleeves 44 are slidably connected to the first adjusting bar 42. The first adjusting bar 42 is fixedly connected with a baffle to prevent the first sliding sleeve 44 from slipping off when sliding on the first adjusting bar 42. A threaded hole is formed in the first sliding sleeve 44, and a first fastening bolt 45 is threadedly connected to the threaded hole of the first sliding sleeve 44. One end of the first fastening bolt 45 close to the first adjusting bar 42 abuts against the adjacent first fastening groove 43. The tops of the two first sliding sleeves 44 are fixedly connected to a second adjusting bar 46 together. Second fastening grooves 47 are formed on both sides of the second adjusting bar 46. Two second sliding sleeves 48 are slidably connected to the second adjusting bar 46. Both ends of the second adjusting bar 46 are fixedly connected with baffles to prevent the second sliding sleeve 48 from slipping off when sliding on the second adjusting bar 46. A threaded hole is formed in the second sliding sleeve 48, and a second fastening bolt 49 is threadedly connected to the threaded hole of the second sliding sleeve 48. One end of the second fastening bolt 49 close to the second adjusting bar 46 abuts against the adjacent second fastening groove 47. Both the second fastening groove 47 and the first fastening groove 43 are subjected to frosting treatment, which can increase the friction force in contact with the first fastening bolt 45 and the second fastening bolt 49.

[0034] As Figures 5 to 8 shown, the adjusting component further includes a motor 4101. The tops of the two second sliding sleeves 48 are fixedly connected to the motor 4101 together. A threaded rod 410 is fixedly connected to the output shaft at the top of the motor 4101. A clamping groove 411 is formed at the top of the threaded rod 410. The clamping groove 411 is arranged in a cross shape. A threaded sleeve 412 is threadedly connected to the outer surface of the threaded rod 410. A fixing head 417 is fixedly connected to the top of the threaded sleeve 412. A placing groove 418 for placing a bolt is formed at the top of the fixing head 417. This placing groove 418 has the same shape as the existing hexagonal bolt head and is used to drive the bolt to rotate. Limiting grooves 413 are formed on both sides of the threaded sleeve 412. Stabilizing rods 414 are fixedly connected to both sides of the threaded sleeve 412. A second spring 415 is sleeved on the outer surface of the stabilizing rod 414. A clamping rod 416 is slidably connected to the inside of the threaded sleeve 412. The shape of the clamping rod 416 is adapted to the shape of the clamping groove 411. Both ends of the clamping rod 416 pass through the two limiting grooves 413 respectively and are slidably connected to the limiting grooves 413. Both ends of the clamping rod 416 located outside the threaded sleeve 412 slide on the outer surfaces of the two stabilizing rods 414 respectively. Both ends of the second spring 415 are fixedly connected to the lower surface of the clamping rod 416 and the bottom of the stabilizing rod 414 respectively.

[0035] Combined with the above preferred embodiments, the following is the entire working process and working principle of the above embodiments:

[0036] The initial state is:

[0037] Spring 1-36 is in a stretched state, causing the mutually approaching ends of the two slide plates 34 to abut against each other. The slide plates 34 drive the support rod 38 to drive the placement table 39 to be in the highest position through the hinge 37. The two positioning frames 311 are in a state of moving away from each other. The telescopic frame 312 is not contracted. The first sliding sleeve 44 is in the middle of the first adjusting bar 42. The second sliding sleeve 48 is in the middle of the second adjusting bar 46. The threaded sleeve 412 is in the lowest position of the threaded rod 410. The locking bar 416 abuts against the card slot 411. The second spring 415 is in a stretched state.

[0038] Adjust the installation of the vehicle chassis:

[0039] For some vehicles of different models, due to the differences in vehicle models, the positions of the mounting holes on the vehicle chassis are all different. There will be problems such as different horizontal mounting positions and different mounting heights. Therefore, when installing the chassis of vehicles of different models, it is necessary to adjust the positions of the bolt installations.

[0040] At this time, the staff can use tools to remove the bolts of the mounting plate 41, and then adjust the position of the adjusting component. At this time, align the mounting plate 41 with other mounting holes on the mounting disc 2, and then reinstall the mounting plate 41 on the mounting disc 2 by passing bolts through the mounting holes again. Since the mounting holes are in fixed positions, after the mounting plate 41 is installed, if further adjustment of the bolt installation position is required, the fastening bolt 45 can be rotated, so that the fastening bolt 45 moves away from the adjusting bar 42 under the action of the threaded hole. At this time, the end of the fastening bolt 45 close to the adjusting bar 42 no longer abuts against the fastening groove 43. The staff can move the adjusting bar 46, and the adjusting bar 46 drives the sliding sleeve 44 to slide horizontally on the adjusting bar 42. After adjusting the position of the sliding sleeve 44 on the adjusting bar 42, rotate the fastening bolt 45 again, so that the fastening bolt 45 moves towards the side close to the fastening groove 43 in the threaded hole. At this time, the end of the fastening bolt 45 close to the adjusting bar 42 abuts against the fastening groove 43 again, thereby fixing the position of the fastening bolt 45. Then, by rotating the fastening bolt 49, the fastening bolt 49 moves away from the fastening groove 47. At this time, the fastening bolt 49 no longer abuts against the fastening groove 47, and then move the sliding sleeve 48, so that the sliding sleeve 48 slides on the adjusting bar 46. After adjusting the position of the sliding sleeve 48 on the adjusting bar 46, rotate the fastening bolt 49 again, so that the fastening bolt 49 moves towards the side close to the fastening groove 47. The end of the fastening bolt 49 close to the adjusting bar 46 will abut against the fastening groove 47 again. By moving the adjusting bar 46 and the sliding sleeve 48, the motor 4101 can drive the threaded rod 410 to move synchronously. At this time, the threaded rod 410 will drive the fixed head 417 to move synchronously through the threaded sleeve 412, thereby adjusting the position of the bolt to achieve the purpose of installing different models of vehicle chassis and improving the flexibility of vehicle chassis installation.

[0041] In addition, the staff can pull the clamping rod 416 to slide upward on the stabilizing rod 414, so that the clamping rod 416 no longer abuts against the clamping groove 411. Then manually rotate the threaded sleeve 412, and the threaded sleeve 412 moves upward under the threaded action of the threaded rod 410. The threaded sleeve 412 drives the fixed head 417 to move upward. After adjusting the height of the fixed head 417, the staff releases the clamping rod 416 at this time. Under the elastic reset action of the spring 415, the clamping rod 416 moves downward inside the limiting groove 413. At this time, after the clamping rod 416 moves downward, it will continue to be stuck inside the clamping groove 411. At this time, due to the clamping relationship between the clamping rod 416 and the clamping groove 411, the threaded sleeve 412 cannot rotate outside the threaded rod 410, thereby adjusting the height of the fixed head 417, so as to install different models of vehicle chassis, reducing the time spent on replacing or readjusting the equipment, and thus improving the overall installation efficiency.

[0042] Finally, the bolts to be installed are placed in the placement grooves 418 one by one. Then, the existing manipulator will align the vehicle body with the vehicle chassis lifted by the mounting disc 2. During the subsequent assembly, the motor 4101 can be started. The output shaft of the motor 4101 drives the threaded rod 410 to rotate. The threaded rod 410 drives the clamping rod 416 to drive the threaded sleeve 412 to rotate through the card slot 411. The threaded sleeve 412 drives the fixed head 417 to screw the bolt into the threaded mounting hole of the vehicle body.

[0043] It should be noted that: during the process of the above-mentioned staff manually rotating the threaded sleeve 412, the threaded sleeve 412 will drive the clamping rod 416 to rotate synchronously through the limiting groove 413. During the rotation of the clamping rod 416, the clamping rod 416 may not coincide with the card slot 411, and thus the clamping rod 416 cannot move downward to be clamped in the card slot 411. At this time, the threaded sleeve 412 can be rotated slightly again. The threaded sleeve 412 drives the clamping rod 416 to continue to rotate slightly through the limiting groove 413 until the clamping rod 416 rotates to a position corresponding to the card slot 411. Under the elastic reset action of the second spring 415, the clamping rod 416 moves downward and is clamped with the card slot 411, so that the clamping rod 416 locks the threaded sleeve 412 through the limiting groove 413. In addition, during the process of the threaded rod 410 driving the threaded sleeve 412 to rotate and the bolt rotating and tightening, the bolt will move upward inside the placement groove 418. If the height of the fixed head 417 is adjusted with a deviation from the standard installation height, the height of the fixed head 417 can be adjusted to be slightly higher than the installation position. When the assembled vehicle chassis and the vehicle body are fixed subsequently, during the process of the vehicle body moving downward from top to bottom, the bolt with a slightly higher position will first contact the threaded mounting hole on the vehicle body. During the process of screwing the bolt, the bolt in contact with the threaded mounting hole on the vehicle body will gradually be screwed into the threaded mounting hole of the vehicle body during rotation. At this time, the vehicle body gradually moves downward, so that other bolts contact the vehicle body. At this time, other bolts can gradually be screwed into the interior of the vehicle body mounting hole during rotation. And during the process of screwing in, the bolt will spiral upward in the threaded mounting hole of the vehicle body, that is, move upward in the placement groove 418, and the above effect of screwing in all bolts can be achieved.

[0044] The positioning component positions and supports the subframe bracket:

[0045] After placing the bolt on the fixed head 417, it is necessary to place the pre-installed subframe bracket on the fixed head 417. At this time, the staff can start the electric slide rail 31, and the electric slide rail 31 will drive the electric slider 32 to move. The electric slider 32 drives the slide plate 34 to move synchronously through the chute rod 1 33. The slide plate 34 makes the support rod 38 drive the placement table 39 to move synchronously through the hinge 37. When the placement table 39 moves to the position where the pre-installed subframe bracket needs to be placed, the staff can place the pre-installed subframe bracket at this time. After placing the subframe bracket on the placement table 39, the gravity of the subframe bracket causes the placement table 39 to move downward. During the downward movement of the placement table 39, the hinge 37 is pushed by the support rod 38 to make the two slide plates 34 move to both sides inside the chute rod 1 33, and the slide plate 34 stretches the spring 1 36 through the guide rod 35.

[0046] In addition, when the slide plate 34 moves to both sides inside the chute rod 1 33, the slide plate 34 will also drive the telescopic frame 312 to move to both sides synchronously through the hinge 37. The telescopic frame 312 will drive the spring telescopic rod of the positioning frame 311 to move inside the T-shaped groove of the chute rod 2 310. At the same time, the telescopic frame 312 will contract synchronously when the placement table 39 moves downward. At this time, the flat plates of the two positioning frames 311 will approach the placement table 39. At this time, the flat plates of the positioning frames 311 will contact the subframe bracket. The mutually approaching surfaces of the flat plates of the two positioning frames 311 are made of soft rubber material, so that they can fit the contacted subframe bracket. At the same time, the electric telescopic rod 313 is started, and the telescopic shaft of the electric telescopic rod 313 contracts to drive the positioning rod 314 to move toward the side close to the placement table 39. At this time, the movement of the positioning rod 314 will contact both sides of the subframe bracket. At the same time, the pressure sensor on the positioning rod 314 will contact the subframe bracket, and under the pushing action of the positioning rod 314, the subframe bracket will move on the placement table 39. By pushing the subframe bracket placed on the placement table 39 with the positioning rod 314, the subframe bracket is pushed and calibrated, which is convenient for the electric slide rail 31 to quickly drive the subframe bracket to align with the bolt placed on the fixed head 417, so that the bolt can be inserted into the installation hole of the subframe bracket more smoothly, further improving the installation efficiency.

[0047] It should be noted that: after the flat plate of the positioning frame 311 touches the subframe bracket, the flat plate of the positioning frame 311 cannot continue to converge towards the middle. When the subframe bracket and the placement table 39 continue to move downward, the telescopic frame 312 will continue to drive the spring telescopic rod of the positioning frame 311. At this time, the telescopic frame 312 will continue to stretch the spring telescopic rod of the positioning frame 311, thus not affecting the downward movement of the placement table 39. Furthermore, the subframe bracket will still continue to move downward until the bolt can be inserted into the mounting hole of the subframe bracket. In addition, after the positioning rod 314 pushes the subframe bracket, the telescopic shaft of the electric telescopic rod 313 continuously contracts, and the pressure received by the pressure sensor on the electric telescopic rod 313 gradually increases. When it reaches the preset value, it will control the electric telescopic rod 313 to stop contracting.

[0048] When the sliding plate 34 stretches the first spring 36 through the guide rod 35, through the elastic deformation of the first spring 36, the downward movement of the placement table 39 can be buffered, thereby slowing down the downward speed of the subframe bracket. Cooperating with the above-mentioned centering correction of the subframe bracket by the positioning rod 314, it can prevent the subframe bracket from hitting the fixed head 417 during the process of placing the subframe bracket, resulting in damage or bolt dropping.

[0049] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A pallet for automobile chassis production, comprising a base (1), a mounting plate (2) fixedly connected to the top of the base (1), the mounting plate (2) being provided with a plurality of mounting holes, characterized in that: A plurality of adjustment components are arranged on the mounting plate (2), the adjustment components comprising a mounting plate (41) connected to the mounting plate (2) by bolts, an adjustment strip (42) being fixedly connected to the mounting plate (41), a sliding sleeve (44) being slidably connected to the adjustment strip (42), a fastening bolt (45) being threadedly connected to the sliding sleeve (44), an adjustment strip (46) being fixedly connected to the top of the sliding sleeve (44), a sliding sleeve (48) being slidably connected to the adjustment strip (46), a fastening bolt (49) being threadedly connected to the sliding sleeve (48), a motor (4101) being fixedly connected to the top of the sliding sleeve (48), a threaded rod (410) being fixedly connected to the output shaft of the motor (4101), and the threaded rod (410) being fixedly connected to the output shaft of the motor (4101). ) a clamping groove (411) is provided on the top of the threaded rod (410), a threaded sleeve (412) is threadedly connected to the outside of the threaded rod (410), a fixed head (417) is fixedly connected to the top of the threaded sleeve (412), a placement groove (418) is provided on the top of the fixed head (417), a limiting groove (413) is provided on the threaded sleeve (412), a stabilizing rod (414) is fixedly connected to the outside of the threaded sleeve (412), a clamping rod (416) is slidably connected to the inside of the threaded sleeve (412), the shape of the clamping rod (416) is matched with the clamping groove (411), the clamping rod (416) passes through the limiting groove (413) and is slidably connected to the stabilizing rod (414), and a second spring (415) is provided between the clamping rod (416) and the stabilizing rod (414); The positioning assembly also includes a positioning assembly, which includes an electric slide rail (31) fixedly connected to the middle of the base (1), an electric slider (32) slidably connected inside the electric slide rail (31), two slide slot rods (33) fixedly connected to the top of the electric slider (32), two slide slot rods (34) slidably connected between the two slide slot rods (33), and two slide plates (34) fixedly connected to two guide rods (35), one end of the guide rod (35) away from the connection with the slide plate (34) passes through the adjacent slide slot rod (33) and is slidably connected to the adjacent slide slot rod (33), a spring (36) is sleeved on the outer surface of the guide rod (35), and the two ends of the spring (36) are respectively fixedly connected to the outer surface of the guide rod (35) and the adjacent slide slot rod (33), the upper surfaces of the two slide plates (34) are fixedly connected to a hinge (37), and the two hinges (37) are rotatably connected to a support rod (38), The tops of the two support rods (38) are rotatably connected to a placement platform (39), and the lower surface of the placement platform (39) is fixedly connected to four second slide slot rods (310), two of which form a group, and the two groups of second slide slot rods (310) are slidably connected to a positioning frame (311), the positioning frame (311) is composed of two spring telescopic rods and a flat plate, wherein the spring telescopic rods are slidably connected to the second slide slot rods (310), each hinge (37) is fixedly connected to two telescopic frames (312), the telescopic frames (312) on the two hinges (37) are respectively arranged corresponding to the positions of the two positioning frames (311), the top of the telescopic frame (312) is fixedly connected to the spring telescopic rod of the adjacent positioning frame (311), and the bottom of the placement platform (39) is symmetrically fixedly connected to two electric telescopic rods (313), and the telescopic shaft of the electric telescopic rod (313) is fixedly connected to a positioning rod (314).

2. A pallet for automobile chassis production according to claim 1, characterized in that: A pressure sensor is fixedly connected to a surface of the positioning rod (314) close to the electric telescopic rod (313).

3. The pallet for automobile chassis production according to claim 1, characterized in that: The adjusting strip 1 (42) is provided with a fastening groove 1 (43), and one end of the fastening bolt 1 (45) close to the adjusting strip 1 (42) abuts against the fastening groove 1 (43).

4. The pallet for automobile chassis production according to claim 1, characterized in that: The second adjusting strip (46) is provided with a second fastening groove (47), and one end of the second fastening bolt (49) close to the second adjusting strip (46) abuts against the second fastening groove (47).

5. The pallet for automobile chassis production according to claim 2, characterized in that: The first adjustment bar (42) is fixedly connected to a baffle plate for limiting the movement of the first sliding sleeve (44), and the second adjustment bar (46) is fixedly connected to a baffle plate for limiting the movement of the second sliding sleeve (48).

6. A pallet for automobile chassis production according to claim 2, characterized in that: The clamping slot (411) is arranged in a cross shape, and the shape of the clamping rod (416) is adapted to the clamping slot (411).

Images