Positioning tool for axle assembly

Abstract

The utility model discloses a positioning tool for axle assembly, which belongs to the technical field of axles and comprises a workbench, a control assembly is mounted on the workbench, a groove is further arranged on the workbench, a rotating shaft is arranged in the groove and controlled by a driver to rotate, two screw grooves with opposite thread directions are symmetrically arranged on the rotating shaft, and the screw grooves are connected with the control assembly. A mounting block is matched with the screw groove and is in sliding connection with the open groove, a lifting machine is arranged on the mounting block, a first fixing mechanism is arranged at the top end of the lifting machine, a telescopic control table is further arranged on the inner side wall of the mounting block, and a second fixing mechanism for assisting in fixing is arranged on the telescopic control table. The pressure sensors are arranged on the sides, close to the axle, of the fixing plate, the pressing plate and the squeezing plate, the pressure can be correspondingly monitored and adjusted according to clamping force needed by positioning, and therefore damage to the axle body caused by too large pressure can be prevented, and the situation that positioning is not firm enough due to too small pressure can be prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle axles, and in particular relates to a positioning tool for assembling axles. Background Art

[0002] The axle is a bridge structure connected to the frame through the suspension and with car wheels installed at both ends. It is the main component of the vehicle running system. The function of the axle is to transmit the forces and torques in all directions between the frame and the wheels, which has an important impact on the dynamics, stability, load-bearing capacity and other performances of the car. According to the different suspension structures, the axle is divided into two types: integral and disconnected. When a non-independent suspension is used, the middle part of the axle is a solid or hollow center beam, and this type of axle is an integral axle; the disconnected axle is a movable joint structure and is used with an independent suspension. According to different drive modes, the axle is also divided into four types: steering axle, drive axle, steering drive axle and support axle. Among them, the steering axle and the support axle are both driven axles. Gear sets and drive shafts used to connect the transmission system are installed inside the axle.

[0003] During the production of axles, they need to be fixed for ease of assembly. However, existing axles are mostly fixed by clamping with robots, which require manual control. This makes it difficult to control the clamping force, and it is difficult to detect when the clamping force decreases, which poses a safety hazard. In addition, when the clamped axle is large or heavy, the fixing ability of the robot is limited, which can easily cause loose clamping and also pose a safety hazard. Utility Model Content

[0004] The utility model aims to provide a positioning tool for axle assembly, so as to solve the problems faced in the above-mentioned background technology.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A positioning tool for axle assembly includes a workbench, a control assembly is installed on the workbench, a slot is provided on the workbench, a rotating shaft is provided in the slot, the rotating shaft is controlled to rotate by a driver, two screw grooves with opposite thread directions are symmetrically provided on the rotating shaft, the screw groove is matched with a mounting block, the mounting block is slidably connected to the slot, a lift is provided on the mounting block, a first fixing mechanism is provided on the top of the lift, a telescopic control console is also provided on the inner side wall of the mounting block, and a second fixing mechanism for auxiliary fixing is provided on the telescopic control console.

[0007] The first fixing mechanism includes a fixing block, a sliding groove is provided on the top of the fixing block, two pressure plates are slidably connected in the sliding groove, the pressure plates are driven by a first cylinder installed in the sliding groove, a first extension groove is provided on the pressure plate, two connecting holes are provided on the top of the pressure plate, and an extrusion mechanism is detachably connected in the connecting holes.

[0008] The extrusion mechanism includes a U-shaped plate, a second cylinder is provided on the top of the U-shaped plate, second extension grooves matching the first extension grooves are provided on both sides of the inner wall of the U-shaped plate, an extrusion plate is slidably connected between the two second extension grooves, the output end of the second cylinder is connected to the extrusion plate, and two connecting columns are provided at the bottom of the U-shaped plate, and the connecting columns match the connecting holes.

[0009] Electromagnets are arranged on the top of the pressing plate and the bottom of the U-shaped plate, and the two electromagnets attract each other when energized.

[0010] The second fixing mechanism comprises a hydraulic push rod, the output end of the hydraulic push rod is connected to a U-shaped seat, third cylinders are symmetrically arranged on both sides of the inner wall of the U-shaped seat, and the output end of the third cylinder is connected to a fixing plate.

[0011] Pressure sensors are provided on the sides of the fixing plate, the pressure plate and the extrusion plate close to the axle, and the pressure sensors are electrically connected to the control assembly.

[0012] Beneficial effects of the utility model:

[0013] The utility model can limit and fix the vehicle axle through the first fixing mechanism. In order to increase the firmness of the fixation, a squeezing mechanism is arranged on the first fixing mechanism, which can further fix the vehicle axle from the top, so as to increase the firmness during positioning. At the same time, a second fixing mechanism is also provided. When the vehicle axle is large or heavy, the vehicle axle is auxiliary fixed from both sides through two fixing plates on the second fixing mechanism.

[0014] The utility model provides pressure sensors on the fixed plate, the pressure plate and the extrusion plate on one side close to the axle, which can monitor and adjust the pressure accordingly according to the clamping force required for positioning, thereby preventing damage to the axle body caused by excessive pressure and insufficient positioning caused by insufficient pressure.

[0015] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the first fixing mechanism in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the extrusion mechanism in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the second fixing mechanism in the utility model.

[0021] Description of the accompanying drawings:

[0022] 1. Workbench; 2. Slot; 3. Rotating shaft; 4. Driver; 5. Screw groove; 6. Mounting block; 7. Lifter; 8. First fixing mechanism; 9. Second fixing mechanism; 10. Telescopic control console; 11. Control assembly; 12. Pressure sensor; 801. Fixing block; 802. Slide; 803. Pressing plate; 804. First cylinder; 805. First extension groove; 806. Connecting hole; 807. Extrusion mechanism; 808. U-shaped plate; 809. Second cylinder; 810. Second extension groove; 811. Extrusion plate; 812. Connecting column; 813. Electromagnet; 901. Hydraulic push rod; 902. U-shaped seat; 903. Third cylinder; 904. Fixing plate. DETAILED DESCRIPTION

[0023] 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 of 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.

[0024] A positioning tool for axle assembly, such as Figure 1-Figure 4As shown, it includes a workbench 1, on which is installed a control assembly 11, which can control all electrical parts on the positioning tooling, so as to facilitate workers' operation and control. The workbench 1 is also provided with a slot 2, in which a rotating shaft 3 is provided, and the rotating shaft 3 is controlled to rotate by a driver 4. Two screw grooves 5 with opposite thread directions are symmetrically provided on the rotating shaft 3, and the screw groove 5 is matched with a mounting block 6, which is slidably connected to the slot 2. A lift 7 is provided on the mounting block 6, and a first fixing mechanism 8 is provided at the top of the lift 7. A telescopic control console 10 is also provided on the inner side wall of the mounting block 6, and a second fixing mechanism 9 for auxiliary fixing is provided on the telescopic control console 10. The driver 4 can drive the rotating shaft 3 to rotate. Through the cooperation of the two screw grooves 5 with opposite thread directions and the mounting blocks 6, the two mounting blocks 6 can be driven to move in the slots 2, so that the distance between the two first fixing mechanisms 8 can be adjusted, so that the first fixing mechanisms 8 can be conveniently used to position axles of different sizes; and the telescopic control console 10 can be extended when needed to control the second fixing mechanism 9 to move to the corresponding position. When the axle is large or heavy, the second fixing mechanism 9 can be used for auxiliary fixing, thereby increasing the firmness of the positioning tooling during clamping, making it less likely for the axle to shake during assembly, and facilitating assembly.

[0025] like Figure 2 , Figure 3As shown, the first fixing mechanism 8 includes a fixing block 801, a slide groove 802 is provided on the top of the fixing block 801, two pressing plates 803 are slidably connected in the slide groove 802, the pressing plate 803 is driven by a first cylinder 804 installed in the slide groove 802, a first extension groove 805 is provided on the pressing plate 803, two connecting holes 806 are provided on the top of the pressing plate 803, and an extrusion mechanism 807 is detachably connected in the connecting hole 806, the extrusion mechanism 807 includes a U-shaped plate 808, a second cylinder 809 is provided on the top of the U-shaped plate 808, second extension grooves 810 matching the first extension grooves 805 are provided on both sides of the inner wall of the U-shaped plate 808, an extrusion plate 811 is slidably connected between the two second extension grooves 810, the output end of the second cylinder 809 is connected to the extrusion plate 811, and two connecting columns 812 are provided at the bottom of the U-shaped plate 808, and the connecting columns 812 match the connecting holes 806. When the axle is assembled, it is placed on the fixed block 801. The two pressure plates 803 are driven to move by the first cylinder 804, so that the axle is limited and fixed from both sides, and the top is detachably connected with an extrusion mechanism 807. After the pressure plate 803 is extruded and fixed, the extrusion mechanism 807 is installed on the first fixing mechanism 8 through the connection column 812 and the connection hole 806. At the same time, the top of the pressure plate 803 and the bottom of the U-shaped plate 808 are provided with an electromagnet 813. The two electromagnets 813 attract each other when energized to fix the two so that the two can be tightly connected. In this way, the first extension groove 805 is also connected to the second extension groove 810. The second cylinder 809 is extended and retracted to drive the extrusion plate 811 to move downward, so that the axle is extruded and fixed from the top to increase the firmness during positioning.

[0026] like Figure 4As shown, the second fixing mechanism 9 includes a hydraulic push rod 901, the output end of the hydraulic push rod 901 is connected to a U-shaped seat 902, and third cylinders 903 are symmetrically provided on both sides of the inner wall of the U-shaped seat 902, and the output end of the third cylinder 903 is connected to a fixing plate 904; the fixing plate 904, the pressure plate 803 and the extrusion plate 811 are all provided with a pressure sensor 12 on the side close to the axle, and the pressure sensor 12 is electrically connected to the control assembly 11. The second fixing mechanism 9 can play the role of auxiliary fixing to further increase the firmness during positioning. Specifically, the telescopic control console 10 is moved to a suitable position, and then the hydraulic push rod 901 is driven to extend the U-shaped seat 902 into the axle. The two fixing plates 904 are driven by the third cylinder 903 to move, and the axle is auxiliary fixed from both sides; and the fixing plate 904, the pressure plate 803 and the extrusion plate 811 are provided with a pressure sensor 12 on the side close to the axle. Through the setting of the pressure sensor 12, the pressure can be adjusted accordingly according to the clamping force required for positioning. When the detection pressure is too large, it can be appropriately reduced. When the detection pressure is too small, the pressure can be appropriately increased. This can prevent the axle body from being damaged by excessive pressure and prevent the positioning from being insufficiently firm due to too small pressure.

[0027] When in use, according to the size of the axle to be positioned, the driver 4 is controlled to drive the rotating shaft 3 to rotate, thereby adjusting the positions of the two first fixing mechanisms 8; then the axle is placed on the fixing block 801, the first cylinder 804 is controlled to operate, and the two pressing plates 803 are driven to squeeze and position the axle from both sides; the connecting column 812 on the squeezing mechanism 807 is matched with the connecting hole 806, and the electromagnet 813 is energized, the squeezing mechanism 807 is installed on the first fixing mechanism 8, and the second cylinder 809 is driven to extend and retract, driving the squeezing plate 811 to move downward, so that the axle is squeezed and fixed from the top, thereby, the axle can fix the axle axis from four sides, thereby increasing the firmness during positioning. When the axle is large or heavy, the second fixing mechanism 9 is moved to a suitable position by extending and retracting the telescopic console 10, and then the hydraulic push rod 901 is driven to extend the U-shaped seat 902 into the axle, and the two fixing plates 904 are driven to move by the drive of the third cylinder 903 to assist in fixing the axle from both sides.

[0028] The above contents are merely examples and explanations of the concept of the present utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the present utility model.

Claims

1. A positioning tool for axle assembly, comprising a workbench (1), characterized in that: A control assembly (11) is installed on the workbench (1). The workbench (1) is also provided with a slot (2). A rotating shaft (3) is provided in the slot (2). The rotating shaft (3) is controlled to rotate by a driver (4). Two screw grooves (5) with opposite thread directions are symmetrically provided on the rotating shaft (3). The screw groove (5) is matched with a mounting block (6). The mounting block (6) is slidably connected to the slot (2). The mounting block (6) is provided with a lift (7). A first fixing mechanism (8) is provided at the top of the lift (7). A telescopic control console (10) is also provided on the inner side wall of the mounting block (6). A second fixing mechanism (9) for auxiliary fixing is provided on the telescopic control console (10).

2. The positioning tool for axle assembly according to claim 1, characterized in that: The first fixing mechanism (8) comprises a fixing block (801), a sliding groove (802) is provided on the top of the fixing block (801), two pressing plates (803) are slidably connected in the sliding groove (802), the pressing plates (803) are driven by a first cylinder (804) installed in the sliding groove (802), a first extension groove (805) is provided on the pressing plate (803), two connecting holes (806) are provided on the top of the pressing plate (803), and a pressing mechanism (807) is detachably connected in the connecting holes (806).

3. The positioning tool for axle assembly according to claim 2, characterized in that: The extrusion mechanism (807) comprises a U-shaped plate (808), a second cylinder (809) is provided on the top of the U-shaped plate (808), second extension grooves (810) cooperating with the first extension groove (805) are provided on both sides of the inner wall of the U-shaped plate (808), an extrusion plate (811) is slidably connected between the two second extension grooves (810), the output end of the second cylinder (809) is connected to the extrusion plate (811), and two connecting columns (812) are provided at the bottom of the U-shaped plate (808), and the connecting columns (812) cooperate with the connecting holes (806).

4. The positioning tool for axle assembly according to claim 3, characterized in that: Electromagnets (813) are provided on the top of the pressing plate (803) and the bottom of the U-shaped plate (808), and the two electromagnets (813) attract each other when electricity is supplied.

5. The positioning tool for axle assembly according to claim 4, characterized in that: The second fixing mechanism (9) comprises a hydraulic push rod (901), the output end of the hydraulic push rod (901) is connected to a U-shaped seat (902), a third cylinder (903) is symmetrically provided on both sides of the inner wall of the U-shaped seat (902), and the output end of the third cylinder (903) is connected to a fixing plate (904).

6. The positioning tool for axle assembly according to claim 5, characterized in that: The fixing plate (904), the pressure plate (803) and the extrusion plate (811) are all provided with a pressure sensor (12) on one side close to the axle, and the pressure sensor (12) is electrically connected to the control assembly (11).

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