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CN-120133945-B - Loading device for main bearing cap bolts

CN120133945BCN 120133945 BCN120133945 BCN 120133945BCN-120133945-B

Abstract

The invention discloses a loading device of a main bearing cap bolt, which relates to the technical field of engine processing, and comprises a supporting frame; the locking device comprises a locking frame, two mutually parallel laminating plates and two embedding grooves, wherein the locking frame is arranged on a supporting frame and provided with rotatable clamping blocks, the two laminating plates are respectively positioned on two sides of the locking frame, and the embedding grooves on the laminating plates correspond to the clamping blocks on the locking frame. According to the loading device for the bolts of the main bearing cap, the supporting frame is used as the supporting body of the bolts of the seven groups, and the seven groups can be simultaneously installed on the main bearing cap, so that repeated operation of a mechanical arm is reduced, the technical problems that the installation time is overlong and the stability is poor when the existing loading device for the bolts of the main bearing cap is used are effectively solved, rapid positioning of the bolts is further realized, meanwhile, the working efficiency of the mechanical arm is improved, and the installation stability of the bolts is improved.

Inventors

  • XIE RIDONG
  • WANG CHUNFENG
  • WANG JIAHONG
  • JIANG RONGHUAN

Assignees

  • 广西玉柴机器股份有限公司

Dates

Publication Date
20260508
Application Date
20250430

Claims (8)

  1. 1. A loading device for a main bearing cap bolt, the loading device comprising: A supporting frame (1); the locking frame (2) comprises a center rod (21) and a clamping block (23), wherein the center rod (21) is arranged on the supporting frame (1), and the clamping block (23) is rotatably arranged on the center rod (21); Two mutually parallel attaching plates (31), wherein the two attaching plates (31) are respectively positioned at two sides of the locking frame (2), and an embedded groove on the attaching plate (31) corresponds to a clamping block (23) on the central rod (21); when the clamping block (23) is attached to the attaching plate (31), the attaching plate (31) is positioned at the opening of the embedded groove, and the moving range of the bearing cap bolt in the embedded groove is limited; The clamping block (23) is driven to rotate by a driving mechanism on the supporting frame (1), the driving mechanism comprises a movable rod (24) which is connected to the outer side of the center rod (21) in a sliding mode, and a limiting pin (26) on the movable rod (24) is inserted into a strip-shaped groove (233) on the surface of the clamping block (23); when the movable rod (24) moves, the clamping block (23) rotates under the traction of the limiting pin (26), and the limiting pin (26) slides in the strip-shaped groove (233); the two ends of the clamping block (23) are respectively connected with a stop block, the end part of the clamping block (23) and the position corresponding to the stop block are subjected to round corner treatment, and when the clamping block (23) rotates, the round corner part outside the clamping block is not contacted with the attaching plate (31).
  2. 2. A loading device for a main bearing cap bolt according to claim 1, wherein the end of the movable rod (24) is connected with a toothed plate (25), the toothed plate (25) corresponds to a motor (27) on the support frame (1), the motor (27) is meshed with the toothed plate (25) through a gear (28) on the motor, and the movable rod (24) can be driven to move along the length direction of the toothed plate when the gear (28) rotates.
  3. 3. A loading device for a main bearing cap bolt is characterized in that the bearing cap bolt is divided into an upper part, a middle part and a lower part, the upper part is a bolt cap, the middle part is a middle screw rod, the lower part is a lower screw rod, the middle screw rod and the lower screw rod are cylindrical, the outer diameter of the lower screw rod is larger than that of the middle screw rod, and the inner diameter and the length of the embedded groove are consistent with those of the middle screw rod.
  4. 4. A loading device for a main bearing cap bolt according to any one of claims 1 to 3, wherein a central rotating shaft (32) is inserted into the fitting plate (31), and the end of the central rotating shaft (32) is connected with a turnover mechanism, so that the side with the embedded groove can be turned upwards during the movement of the fitting plate (31).
  5. 5. A loading device for a main bearing cap bolt according to claim 4, wherein the turning mechanism comprises a connecting rod (34) connected to the end of the central rotating shaft (32), and the connecting rod (34) is Z-shaped and corresponds to the rotation auxiliary member (4) on the support frame (1); The rotating auxiliary piece (4) comprises two mutually parallel side plates (41), wherein a strip-shaped flat-mouth groove (42) is formed in the outer part of one side plate (41), and a Z-shaped steering groove (43) is formed in the outer part of the other side plate (41); Both ends of the connecting rod (34) move along the plain slot (42) and the steering slot (43) respectively.
  6. 6. A loading device for a main bearing cap bolt according to claim 5, wherein when one end of the connecting rod (34) horizontally slides along the plain groove (42), the other end is guided by the steering groove (43) to rotate about the center rotation shaft (32), and when one end of the connecting rod (34) moves to the end of the plain groove (42), the side of the attaching plate (31) with the embedded groove is upward.
  7. 7. A loading device for a main bearing cap bolt according to claim 6, wherein the attaching plate (31) is connected with a cylinder (33) on the supporting frame (1) and can be driven by the cylinder (33) to approach or separate from the direction in which the central rod (21) is located.
  8. 8. A loading device for a main bearing cap bolt according to claim 7, wherein a gap is formed on one side of the attaching plate (31) facing the cylinder (33), the center rotating shaft (32) passes through the gap, and the end of the cylinder (33) corresponds to the gap of the attaching plate (31) and is hinged to the center rotating shaft (32) in the gap.

Description

Loading device for main bearing cap bolts Technical Field The invention relates to the technical field of engine machining, in particular to a loading device for a main bearing cap bolt. Background When the bearing cover is installed on the engine cylinder body, the bearing cover is required to be covered on the engine cylinder body, then the bolts are used for reinforcement, and the installation of the bolts is required to strictly follow the specifications, so that the sealing and the structural strength are ensured. The method comprises the steps of cleaning contact surfaces and bolts, pre-coating lubricant to reduce friction, preliminarily assembling the bolts according to a symmetrical sequence, gradually screwing the bolts to a standard torque for 2-3 times, and finally rechecking the torque. However, in the implementation process of the technical scheme, at least the following technical problems are found: the existing main bearing cap bolt installation equipment is overlong in installation time and poor in stability, the equipment depends on mechanical arm operation, the existing mechanical arm can only grasp and install 2 bolts each time, the main bearing cap is generally provided with 7 groups of bolts, the mechanical arm can complete installation only by 7 times of cyclic operation, the process is complicated, the installation time is greatly prolonged, the operation of a production line is hindered, and the adverse effect of the limit of the single operation quantity of the mechanical arm on the production efficiency is highlighted. During installation, the bolts and the bolt holes of the main bearing cover are required to be accurately positioned, but the accurate positioning of each installation can be difficult to ensure in the prior art. Once the deviation is generated, uneven stress is generated when the bolts are fastened, so that the bolts slide, fracture or the main bearing cover deforms and cracks, equipment parts are damaged, the cost is increased, even the production line is stopped, and serious consequences caused by insufficient positioning accuracy are reflected. And secondly, under the condition of long-term repeated operation, the mechanical structure of the equipment is easy to wear and accumulate deviation. The bearings and gears of the mechanical arm joints are worn, and the transmission chains and the screw rods deform, so that the positioning accuracy is reduced. In order to maintain normal operation of equipment, frequent correction and maintenance are required, the operation is complex, manpower and material resources are consumed, the shutdown time is prolonged, the production continuity is disturbed, the interference of wear of a mechanical structure and accumulation of deviation on stable operation of the equipment is reflected, and therefore, the loading device of the main bearing cap bolt is provided. Disclosure of Invention (One) solving the technical problems Aiming at the defects of the prior art, the invention provides a loading device for a main bearing cap bolt, which solves the technical problems of overlong installation time and poor stability of the existing main bearing cap bolt loading equipment when in use. (II) technical scheme In order to achieve the above purpose, the invention is realized by the following technical scheme: A loading device for a main bearing cap bolt, the loading device comprising: A supporting frame; the center rod is arranged on the support frame and provided with a rotatable clamping block; The two mutually parallel attaching plates are respectively positioned at two sides of the locking frame, and the embedded groove on the attaching plate corresponds to the clamping block on the central rod; When the clamping block is attached to the attaching plate, the attaching plate is located at the opening of the embedded groove, and the movable range of the bearing cover bolt in the embedded groove is limited. Preferably, the clamping block is driven to rotate by a driving mechanism on the supporting frame, the driving mechanism comprises a movable rod which is connected to the outer side of the central rod in a sliding way, and a limiting pin on the movable rod is inserted into a strip-shaped groove on the surface of the clamping block; When the movable rod moves, the clamping block rotates under the traction of the limiting pin, and the limiting pin slides in the strip-shaped groove. Preferably, the end part of the movable rod is connected with a toothed plate, the toothed plate corresponds to a motor on the support frame, the motor is meshed with the toothed plate through a gear on the motor, and the movable rod can be driven to move along the length direction of the movable rod when the gear rotates. Preferably, the bearing cover bolt is divided into an upper part, a middle part and a lower part, wherein the upper part is a bolt cap, the middle part is a middle screw rod, the lower part is a lower screw rod, the middle screw rod and the