Tray for automobile chassis production

Abstract

The invention discloses a tray for automobile chassis production, and relates to the technical field of automobile production, the tray comprises a base, a mounting disc is fixedly connected to the top of the base, a plurality of mounting holes are formed in the mounting disc, a plurality of adjusting assemblies are arranged on the mounting disc, each adjusting assembly comprises a mounting plate connected to the mounting disc through a bolt, and a first adjusting strip is fixedly connected to the mounting plate; a first sliding sleeve is slidably connected to the first adjusting strip, a second adjusting strip is fixedly connected to the top of the first sliding sleeve, a second fastening bolt is in threaded connection 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 an output shaft of the motor, and a clamping groove is formed in the top of the threaded rod. And through movement of a second adjusting strip and a second sliding sleeve, a threaded rod can synchronously move, at the moment, the threaded rod can drive a fixing head to synchronously move through a threaded sleeve, then the position of a bolt can be adjusted, the purpose of installing automobile chassis of different models can be achieved, the flexibility of installing the automobile chassis is improved, and the applicability is higher.

Description

Technical Field

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

[0002] During the automobile production process, the main parts of the automobile are concentrated on the chassis. When assembling the automobile, the engine, subframe bracket, suspension system parts, brake system parts, fuel tank pipes, etc. of the automobile are first placed on the pallet. The existing pallet is mainly used to position the parts of the automobile chassis in automobile assembly production. After preliminary assembly on the pallet, they are installed as a whole with the car body. The pallet is designed with a specific positioning device, wherein the positioning device is an electric bolt tightening device, which can ensure that these parts can be accurately placed in the predetermined position during assembly; The positioning device on the existing pallet is generally difficult to adjust the position and cannot be installed on automobile chassis of different models, 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

[0003] In order to solve the above technical problems, the present invention provides a pallet for producing automobile chassis.

[0004] The technical solution is as follows: The cam is provided with a plurality of holes, and the adjusting assemblies are provided with a plurality of adjusting components. The adjusting assembly comprises a mounting plate connected to the mounting plate by bolts. The mounting plate is fixed with an adjusting strip, a sliding sleeve is slidably connected to the adjusting strip, a fastening bolt is threadedly connected to the sliding sleeve, an adjusting strip is fixedly connected to the top of the sliding sleeve, a sliding sleeve is slidably connected to the adjusting strip, a fastening bolt is threadedly connected to the sliding sleeve, a motor is fixedly connected to the top of the sliding sleeve, a threaded rod is fixedly connected to the output shaft of the motor, a slot is provided at the top of the threaded rod, a threaded sleeve is threadedly connected to the outer side of the threaded rod, a fixing head is fixedly connected to the top of the threaded sleeve, a placement groove is provided at the top of the fixing head, a limiting groove is provided, a stabilizing rod is fixedly connected to the outer side of the threaded sleeve, a clamping rod is slidably connected to the inner side of the threaded sleeve, the shape of the clamping rod is matched with the slot, the clamping rod passes through the limiting groove and is slidably connected to the stabilizing rod, and a spring is provided between the clamping rod and the stabilizing rod.

[0005] Furthermore, it also includes a positioning component, which includes an electric slide rail fixedly connected to the middle of the base, an electric slider slidably connected inside the electric slide rail, two slide slot rods 1 fixedly connected to the top of the electric slider, two slide plates slidably connected between the two slide slot rods 1, and the two slide plates are fixedly connected to two guide rods, and the end of the guide rod away from the connection with the slide plate passes through the adjacent slide slot rod 1 and is slidably connected to the adjacent slide slot rod 1, a spring 1 is sleeved on the outer surface of the guide rod, and the two ends of the spring 1 are respectively fixedly connected to the outer surface of the guide rod and the adjacent slide slot rod 1, and the upper surfaces of the two slide plates are fixedly connected to a hinge, and the two hinges are rotatably connected to a A support rod, the tops of the two support rods are connected to a placing platform by rotation together, and four slide rods 2 are fixedly connected to the lower surface of the placing platform, and the slide rods 2 form a group of two, and two groups of slide rods 2 are slidably connected to a positioning frame, and the positioning frame is composed of two spring telescopic rods and a flat plate, wherein the spring telescopic rod is slidably connected to the slide rod 2, and each hinge is fixedly connected to two telescopic frames, and the telescopic frames on the two hinges are respectively arranged corresponding to the positions of the two positioning frames, and the top of the telescopic frame is fixedly connected to the spring telescopic rod of the adjacent positioning frame, and the bottom of the placing platform is symmetrically fixedly connected to two electric telescopic rods, and the telescopic shaft of the electric telescopic rod is fixedly connected to the positioning rod.

[0006] Furthermore, a pressure sensor is fixedly connected to a side of the positioning rod close to the electric telescopic rod.

[0007] Furthermore, the adjusting strip 1 is provided with a fastening groove 1, and one end of the fastening bolt 1 close to the adjusting strip 1 abuts against the fastening groove 1.

[0008] Furthermore, the second adjusting strip is provided with a second fastening groove, and one end of the second fastening bolt close to the second adjusting strip abuts against the second fastening groove.

[0009] Furthermore, the first adjustment bar is fixedly connected with a baffle plate for limiting the movement of the first sliding sleeve, and the second adjustment bar is fixedly connected with a baffle plate for limiting the movement of the second sliding sleeve.

[0010] Furthermore, the card slot is arranged in a cross shape, and the shape of the card rod is adapted to the card slot.

[0011] From the above, the beneficial effects of the present invention are as follows: The positioning rod pushes the sub-frame bracket placed on the placement table, and then pushes and calibrates the sub-frame bracket, so that the electric slide rail quickly drives the sub-frame bracket to align with the bolts placed on the fixing head, so that the bolts can be inserted into the mounting holes of the sub-frame bracket more smoothly, further improving the installation efficiency; The elastic deformation of the spring 1 can buffer the descending movement of the placement platform, thereby slowing down the descending speed of the sub-frame bracket, and cooperating with the positioning rod to correct the centering of the sub-frame bracket, so as to prevent the sub-frame bracket from hitting the fixing head and causing damage or the bolts from falling off during the placement of the sub-frame bracket, and avoid collision damage caused by too fast a falling speed; By adjusting the movement of the second adjustment strip and the second sliding sleeve, the threaded rod can be made to 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 installation for different models of automobile chassis, thereby improving the flexibility of automobile chassis installation and making it more applicable. Through the clamping relationship between the clamping rod and the clamping slot, the threaded sleeve cannot rotate outside the threaded rod, thereby adjusting the height of the fixing head, thereby realizing installation on different models of automobile chassis, reducing the time spent on replacing or readjusting equipment, and thus improving the overall installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 It is a three-dimensional schematic diagram of components such as the electric slide rail, the mounting plate and the placement table of the present invention; Figure 3 It is a three-dimensional schematic diagram of the electric slide rail, electric slider, slide slot rod and other components of the present invention; Figure 4 It is a three-dimensional schematic diagram of the supporting rod, telescopic frame, slide rod 2 and positioning frame of the present invention; Figure 5 It is a three-dimensional schematic diagram of the components such as the mounting plate, the adjusting strip 1 and the fixing head of the present invention; Figure 6 It is a three-dimensional schematic diagram of the components such as the first adjusting strip, the second adjusting strip, the threaded rod and the clamping slot of the present invention; Figure 7 It is a three-dimensional schematic diagram of the threaded rod, the clamping rod and the placement groove and other components of the present invention; Figure 8 It is a three-dimensional schematic diagram of the threaded sleeve, the clamping rod, the limiting groove and other components of the present invention.

[0013] Among them, the accompanying drawings in the present invention are: 1. Base; 2. Mounting plate; 31, electric slide rail; 32, electric slider; 33, slide rod 1; 34, slide plate; 35, guide rod; 36, spring 1; 37, hinge; 38, support rod; 39, placement table; 310, slide rod 2; 311, positioning frame; 312, telescopic frame; 313, electric telescopic rod; 314, positioning rod; 41, mounting plate; 42, adjusting strip one; 43, fastening groove one; 44, sliding sleeve one; 45, fastening bolt one; 46, adjusting strip two; 47, fastening groove two; 48, sliding sleeve two; 49, fastening bolt two; 410, threaded rod; 4101, motor; 411, clamping groove; 412, threaded sleeve; 413, limiting groove; 414, stabilizing rod; 415, spring two; 416, clamping rod; 417, fixing head; 418, placement groove. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0015] The embodiments provided by the present invention will be described in detail below: like Figures 1 to 4As shown, a pallet 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 opened on the upper surface of the mounting plate 2, a positioning assembly is arranged in the middle of the mounting plate 2, and the positioning assembly 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 slide groove rods 33 are fixedly connected to the top of the electric slider 32, two slide groove rods 33 are slidably connected between the two slide groove rods 33, and two slide plates 34 are fixedly connected to the two slide plates 34. Two guide rods 35 are fixedly connected to the two slide plates 34, and the guide rods 35 pass through the adjacent slide groove rods 33 and are connected to the slide plates 34 at one end away from the guide rods 35. The guide rod 35 is slidably connected to the adjacent slide rod 1 33, and a spring 1 36 is sleeved on the outer surface of the guide rod 35. The two ends of the spring 1 36 are respectively fixedly connected to the outer surface of the guide rod 35 and the adjacent slide rod 1 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. The lower surface of the placement platform 39 is fixedly connected to four slide rods 2 310. The four slide rods 2 310 form a group of two, the two middle slide rods 2 310 form a group, and the two slide rods 2 310 on both sides form a group. The two groups of slide rods 2 310 are all slidably connected with a positioning frame 311, and 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 second slide rod 310, and a spring is built between the fixed end and the telescopic end. When the spring telescopic rod is stretched and extended, it can store force, and then it can automatically shrink when it is not stretched. Each slide rod 310 is provided with a T-slot, and the shape of the spring telescopic rod of the positioning frame 311 is adapted to the shape of the T-slot of the second slide rod 310, which is used to prevent instability when the positioning frame 311 slides. In the present invention, a telescopic frame 312 is fixedly connected to both sides of each hinge 37, and the structure of the telescopic frame 312 is similar to the spring telescopic rod of the positioning frame 311. The telescopic frames 312 on the two hinges 37 are respectively arranged corresponding to the positions of the two positioning frames 311, and the telescopic ends at the top of the telescopic frames 312 are fixedly connected to the telescopic ends of the spring telescopic rods of the corresponding positioning frames 311. Two electric telescopic rods 313 are symmetrically fixedly connected to the bottom of the placement table 39, and a positioning rod 314 is fixedly connected to the telescopic shaft at one end of the electric telescopic rod 313 away from each other, and a pressure sensor is fixedly connected to the side of the positioning rod 314 close to the electric telescopic rod 313.

[0016] like Figure 1 and Figures 5 to 8As shown, a plurality of adjustment components are arranged on the mounting plate 2, and the adjustment components include a mounting plate 41 fixedly connected to the mounting plate 2 by bolts, an adjustment strip 42 is fixedly connected to the upper surface of the mounting plate 41, and fastening grooves 43 are provided on both sides of the adjustment strip 42, two sliding sleeves 44 are slidably connected to the adjustment strip 42, and a baffle is fixedly connected to the adjustment strip 42 to prevent the sliding sleeve 44 from slipping when sliding on the adjustment strip 42, and a threaded hole is provided in the sliding sleeve 44, and a fastening bolt 45 is threadedly connected in the threaded hole of the sliding sleeve 44, and one end of the fastening bolt 45 close to the adjustment strip 42 conflicts with the adjacent fastening groove 43, and the two sliding sleeves An adjusting bar 2 46 is fixedly connected to the top of one 44, and fastening grooves 2 47 are provided on both sides of the adjusting bar 2 46. Two sliding sleeves 2 48 are slidably connected to the adjusting bar 2 46. Baffles are fixedly connected to both ends of the adjusting bar 2 46 to prevent the sliding sleeve 2 48 from slipping when sliding on the adjusting bar 2 46. A threaded hole is provided in the sliding sleeve 2 48, and a fastening bolt 2 49 is threadedly connected to the threaded hole of the sliding sleeve 2 48. One end of the fastening bolt 2 49 close to the adjusting bar 2 46 conflicts with the adjacent fastening groove 2 47. The fastening groove 2 47 and the fastening groove one 43 are both frosted to increase the friction force of contact with the fastening bolt 1 45 and the fastening bolt 2 49.

[0017] like Figures 5 to 8 As shown, the adjustment component also includes a motor 4101, the tops of the two sliding sleeves 48 are fixedly connected to the motor 4101, the output shaft at the top of the motor 4101 is fixedly connected to a threaded rod 410, the top of the threaded rod 410 is provided with a slot 411, the slot 411 is set in a cross shape, the outer surface of the threaded rod 410 is threadedly connected to a threaded sleeve 412, the top of the threaded sleeve 412 is fixedly connected to a fixed head 417, the top of the fixed head 417 is provided with a placement groove 418 for placing a bolt, the placement groove 418 is the same shape as the existing hexagonal bolt head, and is used to drive the bolt to rotate, the threaded sleeve 412 Limiting grooves 413 are provided on both sides, and stabilizing rods 414 are fixedly connected to both sides of the threaded sleeve 412. A spring 2 415 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. The two ends of the clamping rod 416 respectively pass through the two limiting grooves 413 and are slidably connected to the limiting grooves 413. The two ends of the clamping rod 416 located outside the threaded sleeve 412 slide on the outer surfaces of the two stabilizing rods 414 respectively, and the two ends of the spring 2 415 are fixedly connected to the lower surface of the clamping rod 416 and the bottom of the stabilizing rod 414 respectively.

[0018] In combination with the above preferred embodiments, the following is the entire working process and working principle of the above embodiments: The initial state is: The spring 1 36 is in a stretched state, so that the ends of the two slides 34 that are close to each other are in conflict with each other. The slide 34 drives the placement table 39 to the highest position through the hinge 37 so that the support rod 38 drives the placement table 39 to the highest position. The two positioning frames 311 are in a state of moving away from each other, the telescopic frame 312 is not retracted, the sliding sleeve 1 44 is in the middle of the adjusting bar 1 42, the sliding sleeve 2 48 is in the middle of the adjusting bar 2 46, the threaded sleeve 412 is in the lowest position of the threaded rod 410, the clamping rod 416 is in conflict with the clamping groove 411, and the spring 2 415 is in a stretched state.

[0019] Adjust the installation on the vehicle chassis: For some different models of cars, the positions of the mounting holes on the car chassis are different due to the different car models. There will be problems of different horizontal installation positions and different installation height positions. Therefore, when installing the chassis of different models of cars, the position of the bolt installation needs to be adjusted.

[0020] The staff can now use the tool to remove the bolts of the mounting plate 41 and then adjust the position of the adjusting assembly. At this time, the mounting plate 41 is aligned with the other mounting holes on the mounting plate 2, and then the mounting plate 41 is re-installed on the mounting plate 2 by passing the bolts through the mounting holes. Because the mounting holes are fixed in position, after the mounting plate 41 is installed, if the installation position of the bolts needs to be further adjusted, the fastening bolt 45 can be rotated so that the fastening bolt 45 moves toward the side away from the adjusting strip 42 under the action of the threaded hole. At this time, the end of the fastening bolt 45 close to the adjusting strip 42 no longer conflicts with the fastening groove 43. The staff can dial the adjusting strip 46, and the adjusting strip 46 drives the sliding sleeve 44 to slide horizontally on the adjusting strip 42. After adjusting the position of the sliding sleeve 44 on the adjusting strip 42, the fastening bolt 45 is rotated again at this time so that the fastening bolt 45 moves in the threaded hole toward the side close to the fastening groove 43. At this time, the fastening bolt 45 is close to the end of the adjusting strip 42 The second fastening bolt 49 is rotated to make the second fastening bolt 49 move away from the second fastening groove 47. At this time, the second fastening bolt 49 no longer contacts the second fastening groove 47. Then, the second sliding sleeve 48 is moved to make the second sliding sleeve 48 slide on the adjustment strip 46. After the position of the second sliding sleeve 48 on the adjustment strip 46 is adjusted, the second fastening bolt 49 is rotated to make the second fastening bolt 49 move closer to the fastening groove 1 43. When one side of the groove 47 moves, the end of the fastening bolt 49 close to the adjusting bar 46 will contact the fastening groove 47 again. Through the movement of 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 fixing head 417 to move synchronously through the threaded sleeve 412, and then the position of the bolt can be adjusted to achieve the purpose of installation for different models of automobile chassis, thereby improving the flexibility of automobile chassis installation.

[0021] 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 conflicts with the clamping slot 411, and then manually rotate the threaded sleeve 412. The threaded sleeve 412 moves upward under the threaded action of the threaded rod 410, and the threaded sleeve 412 drives the fixed head 417 to move upward. When the height of the fixed head 417 is adjusted, the staff releases the clamping rod 416, and the clamping rod 416 moves downward inside the limiting groove 413 under the elastic reset action of the spring 2 415. At this time, the clamping rod 416 will continue to be stuck in the inside of the clamping slot 411 after moving downward. At this time, through the clamping relationship between the clamping rod 416 and the clamping slot 411, the threaded sleeve 412 cannot rotate outside the threaded rod 410, and the height of the fixed head 417 is adjusted, thereby realizing the installation of automobile chassis of different models, reducing the time spent on replacing or readjusting equipment, thereby improving the overall installation efficiency.

[0022] Finally, the bolts to be installed are placed one by one in the placement groove 418, and then the existing robot arm will match the car body with the car chassis supported by the installation plate 2. Then, during the later assembly, the motor 4101 can be started, and the output shaft of the motor 4101 drives the threaded rod 410 to rotate. The threaded rod 410 passes through the slot 411 so that the clamping rod 416 drives the threaded sleeve 412 to rotate, and the threaded sleeve 412 drives the fixing head 417 to screw the bolt into the threaded installation hole of the car body.

[0023] It should be noted that: in 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 limit groove 413. In the process of the rotation of the clamping rod 416, the clamping rod 416 will not overlap with the clamping groove 411, and then the clamping rod 416 cannot move downward to be clamped in the clamping groove 411. At this time, the threaded sleeve 412 can be rotated slightly again, and the threaded sleeve 412 drives the clamping rod 416 to continue to rotate slightly through the limit groove 413 until the clamping rod 416 rotates to the position corresponding to the clamping groove 411. Under the elastic reset action of the spring 2 415, the clamping rod 416 moves downward and is clamped with the clamping groove 411, so that the clamping rod 416 locks the threaded sleeve 412 through the limit groove 413. In addition, when the threaded rod 410 drives the threaded sleeve 412 to rotate, so that the bolt is spirally rotated and tightened, the bolt will move upward inside the placement groove 418. If the height of the fixed head 417 is adjusted to deviate 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 automobile chassis and body are subsequently fixed, the slightly higher bolts will first conflict with the threaded mounting holes on the body during the movement of the body from top to bottom. In the process of tightening the bolts, the bolts that conflict with the threaded mounting holes of the body will gradually be screwed into the threaded mounting holes of the body during the rotation. At this time, the body gradually moves downward, thereby causing other bolts to conflict with the body. At this time, the other bolts can be gradually screwed into the interior of the body mounting holes during the rotation. In the process of screwing in, the bolts will spirally move upward in the threaded mounting holes of the body, that is, move upward in the placement groove 418, thereby achieving the above-mentioned effect of screwing in all the bolts.

[0024] The positioning assembly positions and lifts the subframe bracket: After the bolts are placed on the fixing head 417, the pre-installed sub-frame bracket needs to be placed on the fixing 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 slide groove rod 1 33. The slide plate 34 drives the placement table 39 to move synchronously through the hinge 37. When the placement table 39 moves to the position where the pre-installed sub-frame bracket needs to be placed, the staff can place the pre-installed sub-frame bracket. After placing the sub-frame bracket on the placement table 39, the placement table 39 moves downward under the action of the gravity of the sub-frame bracket. During the downward movement of the placement table 39, the hinge 37 pushes the two slide plates 34 to move to both sides inside the slide groove rod 1 33 through the support rod 38, and the slide plate 34 stretches the spring 1 36 through the guide rod 35.

[0025] In addition, when the slide plate 34 moves to both sides inside the slide groove rod 1 33, the slide plate 34 will also drive the telescopic frame 312 to move to both sides synchronously through the hinge 37, and the telescopic frame 312 will drive the spring telescopic rod of the positioning frame 311 to move inside the T-slot of the slide groove rod 2 310. At the same time, the telescopic frame 312 will shrink 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 conflict with the auxiliary frame bracket. The sides of the two positioning frames 311 flat plates that are close to each other are made of soft rubber material, so that they can fit the conflicting auxiliary frame bracket. At the same time, the electric telescopic rod 313 is started, and the electric telescopic rod 31 The contraction of the telescopic shaft 314 drives the positioning rod 314 to move toward the side close to the placement platform 39. At this time, the movement of the positioning rod 314 will abut against the two sides of the sub-frame bracket. At the same time, the pressure sensor on the positioning rod 314 will abut against the sub-frame bracket, and the sub-frame bracket will move on the placement platform 39 under the pushing action of the positioning rod 314. The positioning rod 314 pushes the sub-frame bracket placed on the placement platform 39, and then pushes and calibrates the sub-frame bracket, so that the electric slide rail 31 quickly drives the sub-frame bracket to align with the bolts placed on the fixing head 417, so that the bolts can be more smoothly inserted into the mounting holes of the sub-frame bracket, further improving the installation efficiency.

[0026] It should be noted that: after the flat plate of the positioning frame 311 hits the sub-frame bracket, the flat plate of the positioning frame 311 cannot continue to converge toward the middle, and when the sub-frame 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 to move. At this time, the telescopic frame 312 will continue to stretch the spring telescopic rod of the positioning frame 311, and will not affect the downward movement of the placement table 39, and the sub-frame bracket will continue to move downward until the bolt can be inserted into the mounting hole of the sub-frame bracket. In addition, after the positioning rod 314 pushes the sub-frame bracket, the telescopic shaft of the electric telescopic rod 313 continues to contract, and the pressure on the pressure sensor on the electric telescopic rod 313 gradually increases. When the preset value is reached, the electric telescopic rod 313 will be controlled to stop contracting.

[0027] When the slide plate 34 stretches the spring 1 36 through the guide rod 35, the elastic deformation of the spring 1 36 can buffer the descending movement of the placement platform 39, thereby slowing down the descending speed of the sub-frame bracket, and cooperating with the centering correction of the sub-frame bracket by the above-mentioned positioning rod 314 to prevent the sub-frame bracket from hitting the fixing head 417 and causing damage or bolts falling off during the placement of the sub-frame bracket.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in 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). ) is provided with a slot (411) at the top, 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 at 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 locking rod (416) is slidably connected to the inside of the threaded sleeve (412), the shape of the locking rod (416) is compatible with the slot (411), the locking 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 locking rod (416) and the stabilizing rod (414).

2. A pallet for automobile chassis production according to claim 1, characterized in that: 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).

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

4. 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).

5. 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).

6. The pallet for automobile chassis production according to claim 3, 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).

7. The pallet for automobile chassis production according to claim 3, 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).

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