New energy automobile motor bolt tightening tool

Abstract

The utility model belongs to the field of automatic assembly, and discloses a new energy automobile motor bolt tightening tool which comprises a base. The base is rotationally connected with a first guide rod which is vertically arranged; the first guide rod is slidably sleeved with a lifting part, the lifting part is provided with a horizontally-arranged sliding rod, and the sliding rod is slidably connected with the lifting part. Connecting blocks are fixed to the two ends of the sliding rod, and the lifting part is located between the two connecting blocks. Any connecting block is fixedly connected with a fixing block, the lower end of each fixing block is rotationally connected with a rotating shaft which is vertically and downwards placed, the lower end of each rotating shaft is fixedly connected with a limiting sleeve, an electric tightening gun which is horizontally placed is installed on each limiting sleeve, and the output end of each electric tightening gun is detachably connected with a tightening head; a first pneumatic locker is fixedly mounted on the connecting block, the rotating shaft is rotationally sleeved with the first pneumatic locker, and the rotating shaft can be locked and fixed when the first pneumatic locker is opened; the problem that in the prior art, an operator exerts force for a long time to overcome torque to support an electric tightening gun inconveniently is solved.

Description

Technical Field

[0001] This utility model belongs to the field of automated assembly, specifically relating to a bolt tightening fixture for a new energy vehicle motor. Background Technology

[0002] In the field of automotive automated manufacturing and assembly, bolt tightening for new energy vehicle motors is one of the important processes in the assembly line. With the continuous improvement of automation levels and the increasing variety of new energy vehicle motors, the functional requirements for tightening fixtures at multiple angles and positions on the line are becoming increasingly stringent. Traditional bolt tightening fixtures for new energy vehicle motors typically include a resistance arm and an electric tightening gun. The electric tightening gun is horizontally mounted at one end of the resistance arm and is rotatably connected to it to adjust its horizontal orientation. The electric tightening gun can be adjusted horizontally or vertically by manually operating the resistance arm. In use, the motor to be assembled is placed on a rotary table. Then, the resistance arm is manually operated to move the electric tightening gun to the desired position, and the horizontal orientation of the electric tightening gun is adjusted so that it faces the bolts to be tightened horizontally. This, combined with the rotation of the rotary table, drives the motor to be assembled to rotate and adjust, completing the tightening of all horizontal bolts around the motor. Finally, by flipping the motor to be assembled, the tightening of all bolts on the motor is completed.

[0003] To facilitate the horizontal adjustment of the electric tightening gun, it needs to be rotatably connected to the resistance arm. However, the electric tightening gun generates a large torque during operation, which can cause it to misalign and deflect in the horizontal plane. To prevent this misalignment, the operator usually needs to hold the electric tightening gun firmly with both hands. However, during prolonged tightening operations, manually supporting the electric tightening gun is not only physically demanding but also poses a safety hazard after a certain period of time. Therefore, the existing technology suffers from the inconvenience of operators having to exert force to overcome torque and support the electric tightening gun for extended periods. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a bolt tightening fixture for new energy vehicle motors, which solves the problem of the inconvenience of operators having to exert force for a long time to overcome torque and support the electric tightening gun in the existing technology.

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

[0006] A bolt tightening fixture for a new energy vehicle motor, including a base;

[0007] A vertically placed first guide rod is rotatably connected to the base;

[0008] A lifting part is slidably sleeved on the first guide rod, and a horizontally placed slide rod is provided on the lifting part, with the slide rod slidably connected to the lifting part;

[0009] Both ends of the slide bar are fixed with connecting blocks, and the lifting part is located between the two connecting blocks;

[0010] A fixed block is fixedly connected to any connecting block, and a vertically downward rotating shaft is rotatably connected to the lower end of the fixed block. A limit sleeve is fixedly connected to the lower end of the rotating shaft, and a horizontally placed electric tightening gun is installed on the limit sleeve. A tightening head is detachably connected to the output end of the electric tightening gun.

[0011] A first pneumatic locking device is fixedly installed on the connecting block. The first pneumatic locking device is rotatably sleeved on the rotating shaft. When the first pneumatic locking device is opened, it can lock and fix the rotating shaft.

[0012] The principle and effect of the above technical solution are as follows:

[0013] When the electric tightening gun is rotated to the desired position, rotate it around the axis of rotation to align it with the bolt to be tightened. This will adjust the position and angle of the electric tightening gun. After the angle of the electric tightening gun is adjusted, lock the axis of rotation with the first pneumatic locking device. Then start the electric tightening gun to work. This can prevent the electric tightening gun from being misaligned or deflected due to torque during the bolt tightening process. The operator only needs to stabilize the slide rod. There is no need to manually hold the electric tightening gun to overcome the torque and maintain its stability.

[0014] Two sliding rods are placed symmetrically between the two connecting blocks, and both sliding rods pass horizontally through the lifting part and slide in connection with the lifting part.

[0015] The lifting unit includes a sliding sleeve that is slidably sleeved on the first guide rod. A pair of mounting blocks are fixedly sleeved on the sliding sleeve. A horizontally placed sleeve is fixedly connected to each of the two mounting blocks. Both ends of the sleeve are open, and the diameter of the inner circumferential wall of the sleeve is equal to the diameter of the sliding rod. The two sleeves correspond one-to-one with the two sliding rods, and the sliding rods are slidably sleeved in the corresponding sleeves.

[0016] A balancer is installed at the top of the first guide rod, and the hook of the balancer is detachably connected to any of the slide rods;

[0017] The first guide rod is fixedly fitted with an ear plate near the base end. The upper end of the ear plate is fixed with a second guide rod placed vertically upward. A second pneumatic locking device is fixedly installed on any sleeve. The second pneumatic locking device is slidably fitted on the second guide rod. When the second pneumatic locking device is opened, the second guide rod can be locked and fixed.

[0018] The tightening heads are available in various sizes, and all types of tightening heads can be detachably connected to the output end of the electric tightening gun;

[0019] The output end of the electric tightening gun is equipped with a threaded connector, and one end of the tightening head is equipped with threaded teeth that are compatible with the threaded connector. The tightening head and the threaded connector are detachably connected.

[0020] The explanations of the nouns, conjunctions, or adjectives used in the above technical solutions are as follows:

[0021] A fixed connection refers to a connection in which parts or components are fixed in place and there is no relative movement between them.

[0022] A rotating connection is a connection between parts that allows the parts to rotate relative to each other.

[0023] The beneficial effects of this utility model are:

[0024] In use, the motor to be assembled is installed on the rotary worktable. First, the first pneumatic locking device is loosened to lock the rotating shaft. By manually pushing and pulling the slide rod and adjusting the height of the lifting part, and in conjunction with the rotation of the first guide rod around the base, the slide rod drives the electric tightening gun to rotate around the first guide rod, thereby adjusting the position of the electric tightening gun. When the electric tightening gun rotates to the desired position, the electric tightening gun is then rotated around the axis of rotation to face the bolt to be tightened, thus completing the adjustment of the position and angle of the electric tightening gun. After the angle of the electric tightening gun is adjusted, the rotating shaft is locked and fixed by the first pneumatic locking device, and then the electric tightening gun is turned on for operation. This avoids the electric tightening gun from misalignment and deflection due to torque during bolt tightening. The operator only needs to stabilize the slide rod, eliminating the need to manually hold the electric tightening gun to overcome torque and maintain its stability. This solves the problem of the inconvenience of operators having to exert force to overcome torque and support the electric tightening gun for a long time in the existing technology. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 These are schematic diagrams of the overall structure of this utility model from different perspectives;

[0028] Figure 3 This is a schematic diagram of the structure of the rotating shaft of this utility model. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0030] This combination Figures 1 to 3 This describes an embodiment of a bolt tightening fixture for a new energy vehicle motor. Specifically, the bolt tightening fixture for a new energy vehicle motor is constructed as a split structure, comprising a base 100, a first guide tube 200, a lifting part 300, a slide rod 400, a connecting block 500, a fixing block 600, a rotating shaft 601, a limiting sleeve 602, an electric tightening gun 700, and a first pneumatic locking device 603. In use, the first pneumatic locking device 603 first loosens the locking fixation on the rotating shaft 601, and then the electric tightening gun 700 is manually rotated. The limit sleeve 602 and the rotating shaft 601 are rotated. When the electric tightening gun 700 rotates to the required angle, the first pneumatic locking device 603 is activated to lock and fix the rotating shaft 601. At the same time, the lifting part 300 is pushed up and down along the first guide rod 200 by manual operation, and the slide rod 400 is pushed and pulled through the lifting part 300 to move horizontally, so as to adjust the position height and horizontal orientation of the electric tightening gun 700, thus making it suitable for tightening bolts at various positions and angles.

[0031] Please refer to Figures 1 to 3 A bolt tightening fixture for a new energy vehicle motor, including a base 100;

[0032] A vertically placed first guide rod 200 is rotatably connected to the base 100;

[0033] A lifting part 300 is slidably sleeved on the first guide rod 200, and a horizontally placed slide rod 400 is provided on the lifting part 300. The slide rod 400 is slidably connected to the lifting part 300.

[0034] Both ends of the slide bar 400 are fixed with connecting blocks 500, and the lifting part 300 is located between the two connecting blocks 500;

[0035] A fixing block 600 is fixedly connected to any connecting block 500. A vertically downward rotating shaft 601 is rotatably connected to the lower end of the fixing block 600. A limit sleeve 602 is fixedly connected to the lower end of the rotating shaft 601. A horizontally placed electric tightening gun 700 is installed on the limit sleeve 602. A tightening head 701 is detachably connected to the output end of the electric tightening gun 700.

[0036] A first pneumatic locking device 603 is fixedly installed on the connecting block 500. The first pneumatic locking device 603 is rotatably sleeved on the rotating shaft 601. When the first pneumatic locking device 603 is opened, it can lock and fix the rotating shaft 601.

[0037] In use, the motor to be assembled is installed on the rotary worktable. First, the first pneumatic locking device 603 is loosened from the locking of the rotating shaft 601. By manually pushing and pulling the slide rod 400 and adjusting the height of the lifting part, and in conjunction with the rotation of the first guide rod 200 around the base 100, the slide rod 400 drives the electric tightening gun 700 to rotate around the first guide rod 200, thereby adjusting the position of the electric tightening gun 700. When the electric tightening gun 700 rotates to the desired position, it then rotates around the axis of the rotating shaft 601. Rotating the electric tightening gun 700 and pointing it toward the bolt to be tightened will adjust the position and angle of the electric tightening gun 700. After the angle of the electric tightening gun 700 is adjusted, the rotating shaft 601 is locked and fixed by the first pneumatic locking device 603 to prevent the electric tightening gun 700 from being misaligned or deflected due to torque during the bolt tightening process. The operator only needs to stabilize the slide bar 400, and there is no need to manually hold the electric tightening gun 700 to overcome the torque and maintain its stability.

[0038] To prevent the electric tightening gun 700 from deflecting or misaligning due to the slide rod 400 rotating around its own axis, two slide rods 400 are placed symmetrically between the two connecting blocks 500. Both slide rods 400 pass horizontally through the lifting part 300 and are slidably connected to the lifting part 300. By setting up double slide rods 400, the rotation of the slide rod 400 around its own axis can be prevented.

[0039] To further improve the guiding performance of the slide bar 400 during movement, the lifting unit 300 includes a slide sleeve 301 slidably sleeved on the first guide rod 200. A pair of mounting blocks 302 are fixedly sleeved on the slide sleeve 301. A horizontally placed sleeve 303 is fixedly connected to each of the two mounting blocks 302. Both ends of the sleeve 303 are open, and the diameter of the inner peripheral wall of the sleeve 303 is equal to the diameter of the slide bar 400. The two sleeves 303 correspond one-to-one with the two slide bars 400, and the slide bars 400 are slidably sleeved in the corresponding sleeves 303. The guiding performance of the slide bar 400 during horizontal movement is improved by setting the sleeves 303.

[0040] To reduce the labor intensity of manually adjusting the height of the lifting unit 300 and the electric tightening gun 700, a balancer 800 is installed on the top of the first guide rod 200. The hook of the balancer 800 is detachably connected to any slide rod 400. With the assistance of the balance ball, a certain amount of gravity generated by the lifting unit 300 and the electric tightening gun 700 is offset, making it easier to manually push the lifting unit 300 and the electric tightening gun 700 to adjust their height.

[0041] The first guide rod 200 is fixedly fitted with an ear plate near the base 100. A second guide rod 900 is fixedly placed vertically at the upper end of the ear plate. A second pneumatic locking device 901 is fixedly installed on any sleeve 303. The second pneumatic locking device 901 is slidably fitted on the second guide rod 900. When the second pneumatic locking device 901 is opened, it can lock and fix the second guide rod 900. When the electric tightening gun 700 is adjusted to the required position height, the second pneumatic locking device 901 can be opened to lock the second pneumatic locking device 901 with the second guide rod 900, thereby locking the position height of the electric tightening gun 700.

[0042] The tightening head 701 is available in various specifications, and all types of tightening heads 701 can be detachably connected to the output end of the electric tightening gun 700; this allows for the replacement of different specifications of tightening heads 701 according to actual needs, enabling the tightening of bolts of different specifications.

[0043] The output end of the electric tightening gun 700 is provided with a threaded connector, and one end of the tightening head 701 is provided with threaded teeth that are compatible with the threaded connector. The tightening head 701 and the threaded connector are detachably connected. This embodiment is only one optional way to connect the tightening head 701 to the output end of the electric tightening gun 700.

[0044] Another detachable connection method between the tightening head 701 and the electric tightening gun 700 in this application is as follows: the output end of the electric tightening gun 700 is provided with a quick connector with a plug slot, and one end of the tightening head 701 is provided with a plug block that is compatible with the quick connector.

[0045] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims of this utility model.

Claims

1. A new energy automobile motor bolt tightening tool, comprising a base (100), characterized in that: a first guide rod (200) is rotatably connected to the base (100) and arranged vertically; a lifting part (300) is slidably sleeved on the first guide rod (200); a slide rod (400) is arranged horizontally on the lifting part (300) and slidably connected with the lifting part (300); a connecting block (500) is fixedly connected to each end of the slide rod (400); the lifting part (300) is located between the two connecting blocks (500); a fixed block (600) is fixedly connected to any connecting block (500); a rotating shaft (601) is rotatably connected to the lower end of the fixed block (600) and arranged vertically downward; a limiting sleeve (602) is fixedly connected to the lower end of the rotating shaft (601); an electric tightening gun (700) is mounted on the limiting sleeve (602) and arranged horizontally; a tightening head (701) is detachably connected to the output end of the electric tightening gun (700); a first pneumatic locker (603) is fixedly installed on the connecting block (500) and rotatably sleeved on the rotating shaft (601); the first pneumatic locker (603) can lock and fix the rotating shaft (601) when it is opened. The slide rod (400) between the two connecting blocks (500) is arranged symmetrically and has two slide rods (400) which horizontally pass through the lifting part (300) and are slidably connected with the lifting part (300). The lifting part (300) comprises a sliding sleeve (301) which is slidably sleeved on the first guide rod (200); a pair of mounting blocks (302) are fixedly sleeved on the sliding sleeve (301); a sleeve pipe (303) is fixedly connected to each mounting block (302) and arranged horizontally; the sleeve pipe (303) has an open end; the inner side wall diameter of the sleeve pipe (303) is equal to the diameter of the slide rod (400); the two sleeve pipes (303) correspond to the two slide rods (400); the slide rod (400) is slidably sleeved in the corresponding sleeve pipe (303). A balancer (800) is mounted on the top of the first guide rod (200); a hook of the balancer (800) is detachably connected with any slide rod (400). An ear plate is fixedly sleeved on the first guide rod (200) close to the base (100); a second guide rod (900) is fixedly arranged vertically upward on the upper end of the ear plate; a second pneumatic locker (901) is fixedly installed on any sleeve pipe (303) and slidably sleeved on the second guide rod (900); the second pneumatic locker (901) can lock and fix the second guide rod (900) when it is opened. The tightening head (701) has different specifications; the tightening head (701) is detachably connected with the output end of the electric tightening gun (700). 2.The new energy vehicle motor bolt tightening tool of claim 1, characterized in that, The output end of the electric tightening gun (700) is provided with a threaded joint; one end of the tightening head (701) is provided with a threaded tooth matched with the threaded joint; the tightening head (701) is detachably connected with the threaded joint.

3. The new energy vehicle motor screw tightening tool of claim 2, wherein, ​ 4. The new energy vehicle motor screw tightening tool of claim 3, wherein, ​ 5. The new energy vehicle motor bolt tightening tool of claim 4, wherein, ​ 6.The new energy vehicle motor bolt tightening tool of claim 5, characterized in that, ​ 7. The new energy vehicle motor screw tightening tool of claim 6, wherein, ​

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