Balancing shaft housing automatic assembly and tightening device and method

Abstract

The application discloses a balanced axle shell automatic assembling and tightening device and method, relates to the technical field of balanced axle shell, and aims at improving the assembling efficiency; the tightening device comprises a base and a tightening part; the fixed column is rotationally connected to the outer wall of the top of the base, and the circumferential outer wall of the fixed column is connected with a gear through a key; the tightening method comprises the following steps: placing the balanced axle shell to be assembled on the top of the placing plate; the four-square clamping groove column can clamp the bolt required by the balanced axle shell assembling, the square clamping groove is arranged in the four-square clamping groove column, so that the bolt can be prevented from rotating, the gasket is arranged, the nut can be embeddedly arranged on the inner wall of the screwing block, the nut in the screwing block can be driven to rotate by the rotating motor when the bolt is limited by the four-square clamping groove column, and the nut and the bolt can be quickly tightened.

Description

Technical Field

[0001] This invention relates to the field of balance shaft housing technology, and in particular to an automatic assembly and tightening device and method for balance shaft housing. Background Technology

[0002] The balance shaft housing used in heavy trucks is divided into two separate parts, a housing cover and a housing seat, due to structural requirements. During assembly, the housing cover and housing seat are assembled together using reamed bolts and hexagonal nuts. In order to ensure the cylindricity and roundness tolerance of the large hole feature after the housing cover and housing seat are assembled together, in actual production, the mating surfaces of the housing cover and housing seat and the two pin holes need to be machined separately first. Then, the housing cover and housing seat are connected by reamed bolts and hexagonal nuts, and the large hole and other mating features are subsequently machined.

[0003] Currently, in automated production lines, a manual installation station is reserved. The robot places the shell cover and shell seat, after the mating surfaces and pin holes have been machined, together at the manual installation station. The manual assembly is then placed at the robot's gripping station. The robot grips the assembled balance shaft shell and places it on the subsequent machine tool for processing large holes and other mating features. According to the current production process, the manual installation station on the automated production line requires frequent handling, flipping of workpieces, and tightening of their connecting bolts. This process is labor-intensive, tedious, and monotonous. Working for long periods of time may result in the assembled balance shaft shell being placed in the wrong orientation when placed at the robot's gripping station, causing collisions in subsequent processes and hindering automated mass production.

[0004] Therefore, it is necessary to design this automatic assembly and tightening device for the balance shaft housing, so that it can serve as an automatic installation and tightening station in the automated production line. This successfully replaces the manual installation station in the production line, freeing people from the tedious and boring work of frequent handling, flipping, and tightening, achieving truly fully automated production and improving production efficiency. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automatic assembly and tightening device and method for balance shaft housings.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The automatic assembly and tightening device for the balance shaft housing includes a base and a tightening part, wherein the tightening part includes:

[0008] Fixed column: It is rotatably connected to the outer wall of the top of the base, and the outer wall of the fixed column is connected to a gear by a key;

[0009] Vertical plate: It is fixed to the top outer wall of the base by screws, and the inner wall of the through hole opened on the surface of the vertical plate is slidably connected to a limit rod, and a rack that meshes with a gear is fixed to one side of the outer wall of the limit rod by screws;

[0010] Guide plates: The two guide plates are respectively fixed to the outer wall of one side of the two racks by screws;

[0011] Drive rod two: It is fixed to the top outer wall of one of the guide plates by screws, and a rotary motor is fixed to one end of drive rod two by screws;

[0012] Tightening block: It is fixed to the output end of the rotary motor by a pin, and a gasket is welded to the inner surface of the tightening block;

[0013] Drive rod one: It is fixed to the top outer wall of another guide plate by screws, and a disc is welded to one end of drive rod one;

[0014] T-shaped rod: It is slidably connected to the inner wall of the through hole opened on the surface of the disc;

[0015] Spring: It is sleeved on the outer wall of the T-shaped rod, and the two ends of the spring are respectively fixed to the outer wall of one side of the disc and the inner wall of one side of the T-shaped rod by pins;

[0016] Square plate: It is fixed to one end of a T-shaped rod by a pin, and the outer wall of the T-shaped rod is welded with a square slotted post.

[0017] Preferably, an L-shaped plate is fixed to the top outer wall of the base by screws, and a rotating column is rotatably connected to the inner wall of the through hole opened at the top of the L-shaped plate. The outer circumference of the rotating column and the output end of the drive motor are both fixed with pulleys by pins, and the two pulleys are driven by a belt.

[0018] Preferably, a rotating seat 2 is welded to the bottom of the rotating column, and a slot 2 is provided on the inner circumference of the rotating seat 2.

[0019] As a preferred embodiment of the present invention: a connecting block 1 is welded to the outer wall of the top of the gear, and a cylinder 2 is fixed to one side of the outer wall of the connecting block 1 by screws, and a plug 1 that is compatible with the slot 2 is fixed to the output end of the cylinder 2 by a pin.

[0020] As a preferred embodiment of the present invention: a rotating seat is welded to the outer wall of the top of the rotating column, a connecting block is rotatably connected to the inner wall of the bottom of the rotating seat, and an eccentric disk is fixed to the outer wall of the top of the connecting block by a pin. A swing arm is rotatably connected to the outer wall of the top of the eccentric disk by a rotating shaft, and an intermediate rod is rotatably connected to the end of the swing arm away from the eccentric disk.

[0021] As a preferred embodiment of the present invention: a rectangular block is welded to one end of the intermediate rod, and a bent rod is fixed to the top outer wall of the rectangular block by a pin, and a clamp is welded to one end of the bent rod.

[0022] Furthermore: a placement plate is welded to the top outer wall of the base via a connecting rod, and an electromagnet is fixed to the outer circumference of the bent rod via a pin, with the outer wall of the electromagnet slidably connected to the inner wall of a sliding hole opened at the top of the placement plate.

[0023] As a further embodiment of the present invention: a cylinder is fixed to one side of the outer wall of the connecting block 2 by screws, and a plug 2 is fixed to the output end of the cylinder 1 by a pin. A slot 1 that is compatible with the plug 2 is opened on the inner circumference of the rotating seat 1.

[0024] The automatic assembly and tightening method for the balance shaft housing includes the following steps:

[0025] S1: Place the balance shaft housing that needs to be assembled on top of the placement plate;

[0026] S2: Connect plug two and slot one, and use the drive motor to drive the eccentric disk to rotate, so that the two clamps clamp and fix the balance shaft housing after relative movement.

[0027] S3: Disconnect plug 2 from slot 1, connect plug 1 and slot 2, and use the drive motor to drive the gear to rotate, so that the two racks move in opposite directions.

[0028] S4: Use the feeding equipment to insert the bolt into the inner wall of the square slot column and embed the nut into the surface of the washer in the tightening block;

[0029] S5: Use a rotary motor to drive the nut to rotate so that it is assembled onto the bolt, thus completing the assembly of the balance shaft housing.

[0030] The beneficial effects of this invention are as follows:

[0031] 1. The four-square slot post can be used to clamp the bolts required for assembling the balance shaft housing. The square slot inside the four-square slot post can prevent the bolt from rotating. The washer allows the nut to be installed on the inner wall of the tightening block by embedding. After the bolt is limited by the four-square slot post, the nut inside the tightening block can be rotated by the rotary motor, thereby quickly tightening the nut and bolt.

[0032] 2. By incorporating a spring, when the screwing block tightens the bolt during rotation, the bolt inside the square slot post can always remain in contact with the surface of the balance shaft housing.

[0033] 3. The drive motor can drive the rotating column to rotate by the transmission of the belt. The cylinder can drive the plug to move laterally and insert into the inner wall of the slot. The plug and slot can limit the rotation between the rotating column and the gear, so that the drive motor can indirectly drive the gear to rotate, thereby driving the two racks to move in opposite directions, thus automatically assembling the balance shaft housing.

[0034] 4. By setting up a swing arm, the circular motion of the eccentric disc can be converted into the lateral motion of the intermediate rod, so that the two clamps can move relative to each other in opposite directions. This allows the two clamps to hold and fix the balance shaft housing, thereby ensuring the stability and safety of the balance shaft housing during assembly.

[0035] 5. By setting a cylinder one to drive plug two to move laterally, when plug two is inserted into the inner wall of slot one, the drive motor can drive the eccentric disk to rotate, thereby realizing automatic clamping of the balance shaft housing. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of the automatic assembly and tightening device for the balance shaft housing proposed in this invention;

[0037] Figure 2 This is a schematic diagram of the main structure of the automatic assembly and tightening device for the balance shaft housing proposed in this invention;

[0038] Figure 3 This is a partial structural diagram of the clamping part of the automatic assembly and tightening device for the balance shaft housing proposed in this invention;

[0039] Figure 4 This is a schematic diagram of the overall structure of the drive unit of the automatic assembly and tightening device for the balance shaft housing proposed in this invention.

[0040] Figure 5 This is a partially exploded structural diagram of the drive unit of the automatic assembly and tightening device for balance shaft housing proposed in this invention;

[0041] Figure 6 This is a schematic diagram of the screw tightening assembly structure of the automatic assembly and tightening device for the balance shaft housing proposed in this invention;

[0042] Figure 7 This is a schematic diagram of the nut tightening assembly of the automatic assembly and tightening device for the balance shaft housing proposed in this invention.

[0043] In the diagram: 1-Base, 2-Connecting rod, 3-Placement plate, 4-Clamp, 5-Tightening block, 6-Drive rod one, 7-Swing arm, 8-Eccentric plate, 9-Drive rod two, 10-Gear, 11-Intermediate rod, 12-Bent rod, 13-Cylinder one, 14-Rotating seat one, 15-Rotating column, 16-L-shaped plate, 17-Rotating seat two, 18-Cylinder two, 19-Connecting block one, 20-Plug one, 21-Belt. 22-Pulley, 23-Drive motor, 24-Rectangular block, 25-Plug II, 26-Connecting block II, 27-Slot I, 28-Fixing post, 29-Slot II, 30-Disc, 31-Square plate, 32-Square slot post, 33-T-shaped rod, 34-Spring, 35-Washer, 36-Rotating motor, 37-Guide plate, 38-Limiting rod, 39-Vertical plate, 40-Rack and pinion, 41-Electromagnet. Detailed Implementation

[0044] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0045] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0046] In the description of this patent, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not limit the device, structure or element to have a specific orientation, or to be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

[0047] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0048] Example 1:

[0049] Automatic assembly and tightening device for balance shaft housing, such as Figure 1-7 As shown, it includes a base 1 and a tightening part, the tightening part including:

[0050] Fixed column 28: It is rotatably connected to the top outer wall of the base 1, and the outer circumference of the fixed column 28 is connected to the gear 10 by a key;

[0051] Vertical plate 39: It is fixed to the top outer wall of the base 1 by screws, and the inner wall of the through hole opened on the surface of the vertical plate 39 is slidably connected to the limit rod 38, and the outer wall of one side of the limit rod 38 is fixed with a rack 40 that meshes with the gear 10 by screws.

[0052] Guide plate 37: Two guide plates 37 are respectively fixed to the outer wall of one side of the two racks 40 by screws;

[0053] Drive rod 2 9: It is fixed to the top outer wall of one of the guide plates 37 by screws, and a rotary motor 36 is fixed to one end of drive rod 2 9 by screws.

[0054] Tightening block 5: It is fixed to the output end of the rotary motor 36 by a pin, and a gasket 35 is welded to the inner surface of the tightening block 5;

[0055] Drive rod 6: It is fixed to the top outer wall of another guide plate 37 by screws, and a disc 30 is welded to one end of drive rod 6;

[0056] T-shaped rod 33: It is slidably connected to the inner wall of the through hole opened on the surface of the disk 30;

[0057] Spring 34: It is sleeved on the outer circumference of the T-shaped rod 33, and the two ends of the spring 34 are respectively fixed to the outer wall of one side of the disc 30 and the inner wall of one side of the T-shaped rod 33 by pins;

[0058] Square plate 31: It is fixed to one end of T-shaped rod 33 by a pin, and a square slotted post 32 is welded to the outer wall of T-shaped rod 33;

[0059] When the gear 10 rotates via the fixed column 28, the two racks 40 can move in opposite directions under the guidance of the limit rod 38 and the vertical plate 39, so that when the balance shaft housing needs to be assembled, the screwing block 5 and the square slot column 32 can move in opposite directions.

[0060] The square slot post 32 can be used to clamp the bolts required for assembling the balance shaft housing. The square slot post 32 has a square groove inside, which can prevent the bolt from rotating. The washer 35 can be used to install the nut on the inner wall of the tightening block 5 by embedding. After the bolt is limited by the square slot post 32, the rotary motor 36 can drive the nut in the tightening block 5 to rotate, thereby quickly tightening the nut and bolt. A certain gap is left between the washer 35 and the inner wall of one side of the tightening block 5 for the bolt to pass through.

[0061] By incorporating a spring 34, when the screwing block 5 tightens the bolt during rotation, the bolt inside the square slot post 32 can always remain in contact with the surface of the balance shaft housing.

[0062] Furthermore, an L-shaped plate 16 is fixed to the top outer wall of the base 1 by screws. A rotating column 15 is rotatably connected to the inner wall of the through hole opened at the top of the L-shaped plate 16. A pulley 22 is fixed to the outer circumference of the rotating column 15 and the output end of the drive motor 23 by pins. The two pulleys 22 are driven by a belt 21. A rotating seat 27 is welded to the bottom of the rotating column 15. A slot 29 is opened on the inner circumference of the rotating seat 27. A connecting block 19 is welded to the top outer wall of the gear 10. A cylinder 28 is fixed to one side outer wall of the connecting block 19 by screws. A plug 20 that matches the slot 29 is fixed to the output end of the cylinder 28 by pins.

[0063] The drive motor 23 drives the rotating column 15 to rotate by the transmission action of the belt 21. The cylinder 28 drives the plug 20 to move laterally and insert it into the inner wall of the slot 29. The plug 20 and the slot 29 limit the movement between the rotating column 15 and the gear 10, so that the drive motor 23 can indirectly drive the gear 10 to rotate, thereby driving the two racks 40 to move in opposite directions, thus automatically assembling the balance shaft housing.

[0064] Furthermore, a rotating seat 14 is welded to the top outer wall of the rotating column 15. A connecting block 26 is rotatably connected to the bottom inner wall of the rotating seat 14. An eccentric disk 8 is fixed to the top outer wall of the connecting block 26 by a pin. A swing arm 7 is rotatably connected to the top outer wall of the eccentric disk 8 by a rotating shaft. An intermediate rod 11 is rotatably connected to the end of the swing arm 7 away from the eccentric disk 8. A rectangular block 24 is welded to one end of the intermediate rod 11. A bent rod 12 is fixed to the top outer wall of the rectangular block 24 by a pin. A clamp 4 is welded to one end of the bent rod 12.

[0065] The outer wall of the top of the base 1 is welded with a placement plate 3 via a connecting rod 2. The outer wall of the circumference of the bent rod 12 is fixed with an electromagnet 41 by a pin, and the outer wall of the electromagnet 41 is slidably connected to the inner wall of the sliding hole opened on the top of the placement plate 3.

[0066] By setting the swing arm 7, the circular motion of the eccentric disk 8 can be converted into the lateral motion of the intermediate rod 11, thereby allowing the two clamps 4 to move relative to each other in opposite directions. This allows the two clamps 4 to hold and fix the balance shaft housing, ensuring the stability and safety of the balance shaft housing during assembly. After the two clamps 4 hold and fix the balance shaft housing, by energizing the electromagnet 41, the electromagnet 41 can be magnetically attracted to the inner wall of the sliding hole at the top of the placement plate 3, thereby limiting the position of the two clamps 4.

[0067] Furthermore, a cylinder 13 is fixed to one side of the outer wall of the connecting block 26 by screws, and a plug 25 is fixed to the output end of the cylinder 13 by a pin. The inner circumference of the rotating seat 14 is provided with a slot 27 that is compatible with the plug 25.

[0068] By setting a cylinder 13 to drive the plug 25 to move laterally, when the plug 25 is inserted into the inner wall of the slot 27, the drive motor 23 can drive the eccentric disk 8 to rotate, thereby achieving automatic clamping of the balance shaft housing.

[0069] In this embodiment, the balance shaft housing to be assembled is first placed on top of the placement plate 3. Then, cylinder 13 drives plug 25 to move laterally and insert it into the inner wall of slot 27. Drive motor 23 drives rotating seat 14 and eccentric disk 8 to rotate, causing the two clamps 4 to clamp and fix the balance shaft housing after relative movement. Simultaneously, electromagnet 41 is energized, causing it to attract to the inner wall of the sliding hole at the top of the placement plate 3. Then, plug 25 is separated from slot 27, and cylinder 218 drives plug 2... After the 20 moves laterally, it is inserted into the inner wall of slot 29. The drive motor 23 drives the gear 10 to rotate. During the rotation, the gear 10 can drive the two racks 40 to move relative to each other in the same direction, so that the square slot post 32 and the screwing block 5 gradually move closer to each other. Then, the feeding device is used to insert the bolt into the inner wall of the square slot post 32, and at the same time, the nut is embedded in the inner wall of the washer 35. Then, the rotary motor 36 is started, and the rotary motor 36 drives the nut to be screwed into the outer wall of the bolt circumference, thereby realizing the assembly of the balance shaft housing.

[0070] Example 2:

[0071] The automatic assembly and tightening method for the balance shaft housing includes the following steps:

[0072] S1: Place the balance shaft housing to be assembled on top of the placement plate 3;

[0073] S2: Connect plug 25 and slot 27, and use drive motor 23 to drive eccentric disk 8 to rotate, so that the two clamps 4 clamp and fix the balance shaft shell after relative movement.

[0074] S3: Disconnect plug 25 and slot 1 27, connect plug 1 20 and slot 2 29, and use drive motor 23 to drive gear 10 to rotate, so that the two racks 40 move in opposite directions.

[0075] S4: Use the feeding equipment to insert the bolt into the inner wall of the square slot post 32, and embed the nut into the surface of the washer 35 in the tightening block 5;

[0076] S5: Use rotary motor 36 to drive the nut to rotate so that it is assembled onto the bolt, thus completing the assembly of the balance shaft housing.

[0077] The above description represents a preferred embodiment of the present invention, but it is not the only embodiment of the present invention. Any modifications, equivalent substitutions, and improvements made by those skilled in the art within the scope of the technology disclosed in the present invention, combined with existing technology or common knowledge, and within the spirit and principles of the present invention, should be covered within the protection scope of the present invention.

Claims

1. An automatic assembly and tightening device for balance shaft housing, comprising a base (1) and a tightening part, characterized in that, The tightening part includes: Fixed column (28): It is rotatably connected to the top outer wall of the base (1), and the outer circumference of the fixed column (28) is connected to a gear (10) by a key. Vertical plate (39): It is fixed to the top outer wall of the base (1) by screws, and the inner wall of the through hole opened on the surface of the vertical plate (39) is slidably connected to the limit rod (38), and the outer wall of the limit rod (38) is fixed with a rack (40) that meshes with the gear (10) by screws. Guide plate (37): Two guide plates (37) are respectively fixed to the outer wall of one side of two racks (40) by screws; Drive rod 2 (9): It is fixed to the top outer wall of one of the guide plates (37) by screws, and a rotary motor (36) is fixed to one end of drive rod 2 (9) by screws. Tightening block (5): It is fixed to the output end of the rotary motor (36) by a pin, and a gasket (35) is welded to the inner surface of the tightening block (5). Drive rod 1 (6): It is fixed to the top outer wall of another guide plate (37) by screws, and a disc (30) is welded to one end of drive rod 1 (6). T-shaped rod (33): It is slidably connected to the inner wall of the through hole opened on the surface of the disc (30); Spring (34): It is sleeved on the outer wall of the circumference of the T-shaped rod (33), and the two ends of the spring (34) are respectively fixed to the outer wall of one side of the disc (30) and the inner wall of one side of the T-shaped rod (33) by pins; Square plate (31): It is fixed to one end of T-shaped rod (33) by a pin, and a square slotted post (32) is welded to the outer wall of T-shaped rod (33). The base (1) has an L-shaped plate (16) fixed to its top outer wall by screws. The inner wall of the through hole at the top of the L-shaped plate (16) is rotatably connected to a rotating column (15). The outer wall of the rotating column (15) and the output end of the drive motor (23) are both fixed with pulleys (22) by pins. The two pulleys (22) are driven by a belt (21). The bottom of the rotating column (15) is welded with a rotating seat (17), and the inner wall of the rotating seat (17) is provided with a slot (29). The gear (10) has a connecting block (19) welded to the top outer wall, and a cylinder (18) is fixed to one side outer wall of the connecting block (19) by screws, and a plug (20) that matches the slot (29) is fixed to the output end of the cylinder (18) by a pin. The rotating column (15) has a rotating seat (14) welded to the top outer wall. The rotating seat (14) has a connecting block (26) rotatably connected to the bottom inner wall. The connecting block (26) has an eccentric disk (8) fixed to the top outer wall by a pin. The eccentric disk (8) has a swing arm (7) rotatably connected to the top outer wall by a rotating shaft. The swing arm (7) has an intermediate rod (11) rotatably connected to the end away from the eccentric disk (8). A rectangular block (24) is welded to one end of the intermediate rod (11), and a bent rod (12) is fixed to the top outer wall of the rectangular block (24) by a pin. A clamp (4) is welded to one end of the bent rod (12). The outer wall of the base (1) is welded with a placement plate (3) via a connecting rod (2), and the outer wall of the bent rod (12) is fixed with an electromagnet (41) via a pin. The outer wall of the electromagnet (41) is slidably connected to the inner wall of the sliding hole opened on the top of the placement plate (3). The outer wall of the connecting block 2 (26) is fixed with a cylinder 1 (13) by screws, and the output end of the cylinder 1 (13) is fixed with a plug 2 (25) by a pin. The inner wall of the rotating seat 1 (14) is provided with a slot 1 (27) that is compatible with the plug 2 (25).

2. An automatic assembly and tightening method for balance shaft housing, wherein the automatic assembly and tightening device for balance shaft housing as described in claim 1 is used for tightening, characterized in that... Includes the following steps: S1: Place the balance shaft housing to be assembled on top of the placement plate (3); S2: Connect plug two (25) and slot one (27), and use drive motor (23) to drive eccentric disk (8) to rotate, so that the two clamps (4) clamp and fix the balance shaft shell after relative movement; S3: Disconnect plug 2 (25) and slot 1 (27), connect plug 1 (20) and slot 2 (29), and use drive motor (23) to drive gear (10) to rotate, so that the two racks (40) move in opposite directions; S4: Use the feeding equipment to insert the bolt into the inner wall of the square slot post (32) and embed the nut into the surface of the washer (35) in the tightening block (5); S5: Use a rotary motor (36) to drive the nut to rotate so that it is assembled onto the bolt, thus completing the assembly of the balance shaft housing.

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