Positioning device for welding cab assembly

Abstract

The utility model provides a positioning device for cab assembly welding, which comprises a limit bottom block, a support sleeve rod, a positioning abutting rod and a vertical support rod, the vertical support rod is arranged on the upper end face of the limit bottom block, the support sleeve rod is sleeved on the upper side of the annular side face of the vertical support rod, and the positioning abutting rod is installed in the support block. The transverse using position of the vertical supporting rod can be adjusted left and right by screwing a positioning screw, and the supporting sleeve rod can be moved up and down or rotationally adjusted by unscrewing a positioning screw, so that the using height or using direction of the positioning abutting rod is adjusted, and the positioning abutting rod abuts against and fixes external cab assemblies of different sizes and types. And when the positioning abutting rod rotates forwards, the positioning abutting rod can move towards the inner side to abut against and fix the external cab assembly placed on the upper end face of the supporting workbench, and the displacement condition of the external cab assembly in the welding process is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cab assembly welding, in particular to a positioning device used for cab assembly welding. Background Art

[0002] The cab assembly is an important part of the body of a truck and a special vehicle, and is where professional drivers work day and night. Its structure is directly related to the driver's safety, work efficiency and health. The cab generally adopts a metal thin shell structure and is flexibly connected to the frame. It does not bear load and is a non-load-bearing body. Welding operations are required during the manufacturing process of the cab assembly, and corresponding positioning devices are used during the welding and manufacturing process of the cab assembly to support and position the cab assembly to avoid displacement of the cab assembly during the welding and manufacturing process.

[0003] In the past, the positioning devices used for cab assembly welding had a small adjustable range, which resulted in only being able to position cab assemblies of the same type and size. Once a cab assembly of a different size and type needed to be positioned, another set of positioning devices had to be re-equipped to position a cab assembly of another type and size, thereby increasing the cost of use for the manufacturer. Although some positioning devices in the prior art have the ability to position cab assemblies of different types and sizes, their use height is fixed, resulting in the inability of welders to adjust the use height of the positioning device according to their own use habits, resulting in poor practicality. Utility Model Content

[0004] The utility model aims to provide a positioning device for welding a cab assembly to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A positioning device for welding a cab assembly comprises a base plate, a fixed support and a supporting workbench, wherein the fixed supports are symmetrically fixedly connected to the left and right sides of the lower end surface of the base plate, a supporting workbench is arranged above the base plate, an adjustment component is arranged between the base plate and the supporting workbench, and the adjustment component is used to adjust the height of the supporting workbench for use by welders with different usage habits, and a positioning component for fixing the cab assembly to the outside is arranged on the upper end surface of the supporting workbench.

[0007] Preferably, the positioning assembly includes a guide groove, a limiting bottom block, a support sleeve, a positioning interference rod, a support block and a vertical strut rod. The upper end surface of the support workbench is provided with a guide groove, and the limiting bottom blocks are inserted into the left and right sides of the guide groove. The upper end surface of the limiting bottom block is provided with a vertical strut rod, and the upper side of the annular side of the vertical strut rod is provided with a support sleeve rod, the upper end of the support sleeve rod is provided with a support block, and the positioning interference rod is installed inside the support block.

[0008] Preferably, the adjustment assembly includes a lifting column, a limit column, a vertical screw, a rotating worm, a driven worm wheel and a low-speed motor. The limit column is fixedly connected to the middle position of the upper end surface of the base substrate, and a lifting column is arranged in the middle position of the lower end surface of the support workbench. A vertical screw is installed inside the lifting column, and a driven worm wheel is arranged at the bottom of the vertical screw. The rear side of the annular side surface of the driven worm wheel is meshed with a rotating worm, and a low-speed motor is installed at the right end of the rotating worm.

[0009] Preferably, a blocking cover is installed on the upper end surface of the limiting column, a limiting groove is provided on the left side of the inner annular side surface of the limiting column, a follower block is provided on the left side of the annular side surface of the lifting column, and the follower block matches the limiting groove.

[0010] Preferably, a limit ring is provided on the lower side of the annular side surface of the vertical screw rod, an anti-slip ring is installed at the middle position of the lower end surface of the bottom substrate, and supporting side plates are installed on both left and right sides of the lower end surface of the bottom substrate.

[0011] Preferably, a fixing nut is installed on the lower side of the annular side of the vertical support rod, a positioning screw is installed on the lower side of the inner part of the support sleeve rod, a hand turntable is provided on the right end of the positioning resistance rod, and a soft rubber block is bonded to the left end of the positioning resistance rod.

[0012] Preferably, storage boxes are placed on both the left and right sides and the front and back sides of the upper end surface of the bottom substrate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. Before the external cab assembly is welded, the horizontal position of the vertical support rod can be adjusted left and right by loosening the fixing nut, and the support sleeve rod can be moved up and down or rotated by loosening the positioning screw, so as to adjust the use height or use direction of the positioning and contact rod, so that the positioning and contact rod can contact and fix external cab assemblies of different sizes and types, thereby reducing the use cost of the production enterprise;

[0015] 2. By controlling the low-speed motor to rotate forward, the utility model can make the low-speed motor drive the vertical screw to reverse by rotating the worm and the driven worm gear, so that the vertical screw rotates to engage the internal thread cavity, and then the lifting column drives the supporting workbench to move upward. Similarly, when the low-speed motor is controlled to reverse, the lifting column will drive the supporting workbench to move downward, so that the welding personnel can adjust the use height of the supporting workbench according to their own usage habits, which has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a front cross-sectional view of the positioning component and the adjustment component in the utility model;

[0018] Figure 3 It is a structural diagram of the positioning component in the utility model;

[0019] Figure 4 It is a partial structural diagram of the regulating component in the utility model;

[0020] Figure 5 It is a partial structural diagram of the positioning component in the utility model.

[0021] In the figure: 1. bottom base plate; 11. storage box; 2. fixed support; 3. adjustment assembly; 31. lifting column; 311. follower block; 32. limiting column; 321. blocking cover; 322. limiting groove; 33. vertical screw; 331. limiting ring; 332. anti-dropping ring; 34. supporting side plate; 35. rotating worm; 36. driven worm gear; 37. low-speed motor; 4. supporting workbench; 5. positioning assembly; 51. guide groove; 52. limiting bottom block; 53. fixing nut; 54. positioning screw; 55. supporting sleeve rod; 56. positioning resistance rod; 561. hand turntable; 562. soft rubber block; 57. supporting block; 58. vertical support rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 , the utility model provides a technical solution:

[0024] Embodiment 1:

[0025] A positioning device for cab assembly welding includes a base plate 1, a fixed support 2 and a support workbench 4. The fixed supports 2 are symmetrically fixedly connected to the left and right sides of the lower end surface of the base plate 1. The fixed supports 2 are installed and fixed to a specified position on the external ground through external expansion bolts. The fixed supports 2 support and fix the base plate 1. A support workbench 4 is arranged above the base plate 1. The support workbench 4 supports the positioning component 5 and the external cab assembly. Storage boxes 11 are placed on the left and right sides and the front and rear sides of the upper end surface of the base plate 1. The storage box 11 is convenient for welders to store some tools or items required for welding. A control panel is installed on the right side of the front end surface of the base plate 1, and the control panel is connected to the low-speed motor 37 through a wire. The control panel is convenient for welders to control the forward and reverse rotation of the low-speed motor 37. Since the internal detailed structure and working principle of the control panel are relatively mature technologies in the prior art, they will not be described in detail here.

[0026] An adjustment component 3 is provided between the base plate 1 and the support workbench 4, and the adjustment component 3 is used to adjust the use height of the support workbench 4 so that welding personnel with different usage habits can use it. A positioning component 5 is provided on the upper end surface of the support workbench 4 for fixing the cab assembly to the outside.

[0027] The positioning assembly 5 includes a guide groove 51, a limiting bottom block 52, a supporting sleeve rod 55, a positioning abutment rod 56, a supporting block 57 and a vertical strut 58. A guide groove 51 is provided on the upper end surface of the supporting workbench 4, and the guide groove 51 matches the limiting bottom block 52. There are multiple guide grooves 51, and the multiple guide grooves 51 have the same specifications. The multiple guide grooves 51 will not only limit the limiting bottom block 52, but also facilitate the limiting bottom block 52 to be inserted into different positions inside the supporting workbench 4. The limiting bottom blocks 52 are inserted into the left and right sides of the guide groove 51. There are multiple limiting bottom blocks 52, and the multiple limiting bottom blocks 52 have the same specifications. The limiting bottom block 52 is connected to the vertical strut 58 by welding, and the limiting bottom block 52 will limit the vertical strut 58.

[0028] A vertical support rod 58 is provided on the upper end surface of the limiting bottom block 52. There are multiple vertical support rods 58, and the multiple vertical support rods 58 have the same specifications. The vertical support rod 58 will support the support sleeve rod 55. A support sleeve rod 55 is sleeved on the upper side of the annular side surface of the vertical support rod 58. There are multiple support sleeve rods 55, and the multiple support sleeve rods 55 have the same specifications. The support sleeve rod 55 is connected to the support block 57 by welding. The support sleeve rod 55 will support the support block 57. A support block 57 is provided on the upper end of the support sleeve rod 55. There are multiple support blocks 57, and the multiple support blocks 57 have the same specifications. The support block 57 will support the positioning resistance rod 56. A positioning resistance rod 56 is installed inside the support block 57. There are multiple positioning resistance rods 56, and the multiple positioning resistance rods 56 have the same specifications. The multiple positioning resistance rods 56 will resist and fix the side of the external cab assembly.

[0029] A first external thread is provided on the annular side surface of the positioning and abutting rod 56, an internal threaded through hole is provided inside the support block 57, and the internal threaded through hole is meshed with the first external thread. The meshed internal threaded through hole and the first external thread enable the positioning and abutting rod 56 to move left and right, a fixing nut 53 is installed on the lower side of the annular side surface of the vertical support rod 58, and multiple fixing nuts 53 are installed, and the multiple fixing nuts 53 have the same specifications, a second external thread is provided on the lower side of the annular side surface of the vertical support rod 58, and the second external thread is meshed with the fixing nut 53, and the meshed second external thread and the fixing nut 53 will fix the vertical support rod 58, a positioning screw 54 is installed on the lower side of the support sleeve rod 55, and the positioning screw 54 is installed Multiple positioning screws 54 are installed, and the specifications of the multiple positioning screws 54 are the same. An internal threaded through hole is opened on the lower side of the inner part of the support sleeve rod 55, and the internal threaded through hole is meshed with the positioning screw 54. The meshed internal threaded through hole and the positioning screw 54 will fix the support sleeve rod 55. A hand turntable 561 is provided at the right end of the positioning resistance rod 56. The hand turntable 561 is connected to the positioning resistance rod 56 by welding. The hand turntable 561 is convenient for the welding personnel to rotate the positioning resistance rod 56 by hand. A soft rubber block 562 is bonded to the left end of the positioning resistance rod 56. The soft rubber block 562 not only avoids hard contact between the positioning resistance rod 56 and the external cab assembly, but also makes the left end of the positioning resistance rod 56 more anti-slip.

[0030] Embodiment 2:

[0031] On the basis of Example 1, in this embodiment, by controlling the low-speed motor 37 to rotate forward, the low-speed motor 37 can drive the vertical screw 33 to reverse by rotating the worm 35 and the driven worm gear 36, so that the vertical screw 33 rotates to engage the internal threaded cavity, and then the lifting column 31 drives the support workbench 4 to move upward. Similarly, when the low-speed motor 37 is controlled to reverse, the lifting column 31 will drive the support workbench 4 to move downward, so that the welder can adjust the use height of the support workbench 4 according to his own usage habits.

[0032] The adjusting assembly 3 includes a lifting column 31, a limiting column 32, a vertical screw 33, a rotating worm 35, a driven worm gear 36 and a low-speed motor 37. The limiting column 32 is fixedly connected to the middle position of the upper end surface of the bottom substrate 1. The limiting column 32 will limit the lifting column 31 to prevent the lifting column 31 from shaking during the lifting process. The lifting column 31 is arranged at the middle position of the lower end surface of the supporting workbench 4. The lifting column 31 is connected to the supporting workbench 4 by welding. The lifting column 31 will The workbench 4 is supported and driven to move up and down. A vertical screw rod 33 is installed inside the lifting column 31. The vertical screw rod 33 is connected to the limit ring 331 and the driven worm gear 36 by welding. An internal threaded cavity is provided inside the lifting column 31, and the internal threaded cavity is engaged with the vertical screw rod 33. The internal threaded cavity enables the vertical screw rod 33 to drive the lifting column 31 to move up and down when it is rotated forward and reversed. A driven worm gear 36 is provided at the bottom of the vertical screw rod 33, and the driven worm gear 36 drives the vertical screw rod 33 to rotate.

[0033] A rotating worm 35 is meshed with the rear side of the annular side of the driven worm wheel 36, and the rotating worm 35 will drive the driven worm wheel 36 to rotate. A low-speed motor 37 is installed at the right end of the rotating worm 35, and the low-speed motor 37 will drive the rotating worm 35 to rotate. A blocking cover 321 is installed on the upper end surface of the limiting column 32, and the blocking cover 321 will block and limit the follower block 311 to prevent the lifting column 31 from slipping during the rising process. A limiting groove 322 is provided on the left side of the inner annular side of the limiting column 32, and a follower block 311 is provided on the left side of the annular side of the lifting column 31. The follower block 311 and the lifting column 31 are connected through They are connected by welding, and the follower block 311 matches the limit groove 322. The matching follower block 311 and the limit groove 322 prevent the lifting column 31 from rotating during the lifting process. A limit ring 331 is arranged on the lower side of the annular side of the vertical screw rod 33, and an anti-disengagement ring 332 is installed in the middle position of the lower end surface of the bottom substrate 1. The limit ring 331 and the anti-disengagement ring 332 prevent the vertical screw rod 33 from being displaced during the rotation process. Support side plates 34 are installed on both sides of the lower end surface of the bottom substrate 1. The support side plates 34 support the rotating worm 35 and the low-speed motor 37.

[0034] Working principle: When welding and manufacturing of the external cab assembly is required, the welder first controls the low-speed motor 37 to rotate forward through the control panel, so that the low-speed motor 37 drives the rotating worm 35 to rotate forward together, and the rotating worm 35 drives the vertical screw 33 to rotate reversely through the driven worm gear 36, so that the vertical screw 33 drives the supporting workbench 4 to move upward through the lifting column 31. Similarly, when the low-speed motor 37 is controlled to rotate reversely, the rotating worm 35 drives the vertical screw 33 to rotate forward through the driven worm gear 36, so that the vertical screw 33 drives the supporting workbench 4 to move upward through the lifting column 31. The lowering column 31 drives the support workbench 4 to move downward, so that the welding personnel can adjust the use height of the support workbench 4 according to their own use habits; when the use height of the support workbench 4 is adjusted to the required height, the external cab assembly to be welded can be placed at the required position on the upper end surface of the support workbench 4 with the help of external lifting equipment, and then the multiple limit bottom blocks 52 are respectively inserted into the required guide grooves 51, and then the horizontal use position of the vertical support rod 58 is adjusted left and right, and after adjusting to the required position, it can be separated with the help of external wrenches. The plurality of fixing nuts 53 are tightened separately to fix the plurality of vertical struts 58; subsequently, the plurality of positioning screws 54 are loosened respectively with the help of an external wrench, at which time the welding personnel can move up and down or rotate the plurality of supporting sleeve rods 55 according to the welding requirements respectively, so as to adjust the use height or use direction of the positioning and contacting rods 56, and when adjusted to the required height and direction, the plurality of positioning screws 54 can be tightened respectively with the help of an external wrench to fix the plurality of supporting sleeve rods 55; finally, the plurality of hand turntables 561 are rotated forwardly respectively, so that the plurality of positioning and contacting rods 56 can be moved inward to contact and fix the external cab assembly placed on the upper end surface of the supporting workbench 4, so as to avoid displacement of the external cab assembly during the welding manufacturing process; when the external cab assembly is welded, the welding personnel first loosen the plurality of fixing nuts 53 respectively with the help of an external wrench, at which time the plurality of vertical struts 58 can be moved outward respectively, and then the welded external cab assembly can be lifted away with the help of external lifting equipment.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning device for cab assembly welding, comprising a base plate (1), a fixed support (2) and a supporting workbench (4), characterized in that: The lower end surface of the base plate (1) is symmetrically fixedly connected to fixed supports (2) on both sides thereof; a support workbench (4) is arranged above the base plate (1); an adjustment component (3) is arranged between the base plate (1) and the support workbench (4); and the adjustment component (3) is used to adjust the height of the support workbench (4) so ​​as to facilitate use by welders with different usage habits; and a positioning component (5) is arranged on the upper end surface of the support workbench (4) for fixing the cab assembly to the outside.

2. A positioning device for cab assembly welding according to claim 1, characterized in that: The positioning assembly (5) comprises a guide groove (51), a limiting bottom block (52), a support sleeve rod (55), a positioning abutment rod (56), a support block (57) and a vertical support rod (58). The upper end surface of the support workbench (4) is provided with a guide groove (51), the limiting bottom block (52) is inserted into the left and right sides of the guide groove (51), the upper end surface of the limiting bottom block (52) is provided with a vertical support rod (58), the upper side of the annular side surface of the vertical support rod (58) is sleeved with a support sleeve rod (55), the upper end of the support sleeve rod (55) is provided with a support block (57), and the positioning abutment rod (56) is installed inside the support block (57).

3. The positioning device for cab assembly welding according to claim 1, characterized in that: The adjustment assembly (3) comprises a lifting column (31), a limiting column (32), a vertical screw (33), a rotating worm (35), a driven worm wheel (36) and a low-speed motor (37); the limiting column (32) is fixedly connected to the middle position of the upper end surface of the base plate (1); the lifting column (31) is arranged at the middle position of the lower end surface of the support workbench (4); the vertical screw (33) is installed inside the lifting column (31); the bottom of the vertical screw (33) is arranged with a driven worm wheel (36); the rear side of the annular side surface of the driven worm wheel (36) is meshed with a rotating worm (35); the right end of the rotating worm (35) is installed with a low-speed motor (37).

4. A positioning device for cab assembly welding according to claim 3, characterized in that: A blocking cover (321) is installed on the upper end surface of the limiting column (32), a limiting groove (322) is provided on the left side of the inner annular side surface of the limiting column (32), and a follower block (311) is provided on the left side of the annular side surface of the lifting column (31), and the follower block (311) matches the limiting groove (322).

5. The positioning device for cab assembly welding according to claim 3 is characterized in that: A limit ring (331) is provided on the lower side of the annular side surface of the vertical screw rod (33), an anti-slip ring (332) is installed in the middle of the lower end surface of the bottom substrate (1), and supporting side plates (34) are installed on both left and right sides of the lower end surface of the bottom substrate (1).

6. A positioning device for cab assembly welding according to claim 2, characterized in that: A fixing nut (53) is installed on the lower side of the annular side of the vertical support rod (58), a positioning screw (54) is installed on the lower side of the inner part of the support sleeve rod (55), a hand turntable (561) is arranged on the right end of the positioning and abutting rod (56), and a soft rubber block (562) is bonded to the left end of the positioning and abutting rod (56).

7. The positioning device for cab assembly welding according to claim 1, characterized in that: Storage boxes (11) are placed on the left and right sides and the front and back sides of the upper end surface of the bottom substrate (1).

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