Auxiliary tightening device for battery car assembly production

Abstract

According to the technical scheme, the auxiliary tightening device for assembling and producing the battery car comprises a barrel, a driving motor is arranged on the upper portion in the barrel, a tool bit used for tightening is arranged at the output end of the driving motor in a transmission mode, a limiting block with the hollow middle is arranged at the bottom of the barrel through a connecting rod, and the limiting block is connected with the driving motor. An opening for a screw to penetrate through is formed in one side of the limiting block, and a limiting groove used for limiting the screw is formed between the limiting block and the barrel. The screw mounting device has the advantages that the screw is inserted into the limiting groove between the barrel and the limiting block, the tool bit abuts against the top of the screw, the screw is rotated to enable the tool bit to be inserted into the notch in the top of the screw, and the driving motor works to drive the tool bit to rotate so as to drive the screw to rotate, so that mounting work is conducted; the stability of the position between the screw and the tool bit is guaranteed, and the possibility that the screw is deviated or cannot be aligned with the screw is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of battery car, concretely is a kind of auxiliary tightening device for battery car assembly production. BACKGROUND

[0002] Battery car is also called "electric vehicle", it is a kind of life traffic tool, it is the pure electric vehicle driven by battery (battery) provides electric energy, electric motor (direct current, alternating current, series excitation, he excitation), battery car needs to assemble its each accessory during production process, to be assembled into a whole vehicle.

[0003] When battery car is produced and assembled, a large number of screws are needed to be used to fix and install some parts, during use, staff need to put screw into screw hole, then screwdriver head is aligned with screw to be installed and fixed, but screw will be offset after being put into screw hole, so that screw is hit off target or cannot be aligned with screw. INVENTION CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model aims at providing a kind of auxiliary tightening device for battery car assembly production.

[0005] To achieve the above-mentioned purpose, the utility model is technical scheme as follows:

[0006] A kind of auxiliary tightening device for battery car assembly production, including cylinder, driving motor is arranged in the upper part of the cylinder, driving motor output end transmission is provided with the head for tightening, the bottom of the cylinder is provided with the limit block with middle hollow by connecting rod, the limit block is opened with the opening for screw to pass through one side, and the limit block and the cylinder form the limit slot for limiting the screw.

[0007] Preferably, the driving motor output end is provided with a fixed plate through a rotating shaft transmission, the fixed plate is slidably provided with a fixed rod connected with the head, and the fixed rod and the rotating shaft are provided with a compression spring wound on the fixed plate.

[0008] Preferably, when the compression spring is in normal state, the head penetrates the limit block.

[0009] Preferably, when the screw is located in the limit slot, the screw bottom penetrates the limit block, and the length of the screw extending out of the bottom of the limit block is at least one third of the total length of the screw.

[0010] Preferably, the limit block is composed of two arc-shaped magnetic blocks rotatably connected with the connecting rod, the two arc-shaped magnetic blocks are hingedly arranged at one end through the connecting rod, and the other ends of the two arc-shaped magnetic blocks are attracted by opposite poles.

[0011] Preferably, the inner diameter of the limiting block gradually decreases from the side closer to the cylinder to the side farther away from the cylinder.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model uses a compression spring to insert the screw into the limiting groove between the cylinder and the limiting block. The return force of the compression spring causes the cutting head to contact the top of the screw. Rotating the screw causes the cutting head to insert into the groove at the top of the screw. The drive motor drives the cutting head to rotate, thereby rotating the screw to perform the installation work. This ensures the stability of the position between the screw and the cutting head, reducing the possibility of the screw being misaligned or not being able to be installed. After the screw part extending out of the bottom of the limiting block is installed, the limiting block is separated from the screw through the opening. The return force of the compression spring causes the cutting head to penetrate the limiting block to continue the screw installation work.

[0014] 2. This utility model achieves the limitation of screws of different diameters by using a limiting block that is hinged at one end and attracted to the other end, thereby making the device suitable for more installation work and increasing the applicability of the device. Attached Figure Description

[0015] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the cylindrical body of this utility model;

[0018] Figure 3 This is a schematic diagram of the screw structure of this utility model.

[0019] The diagram shows: 1. Cylinder body; 2. Connecting rod; 3. Limiting block; 4. Screw;

[0020] 5. Drive motor; 6. Shaft; 7. Fixing plate; 8. Pressure spring; 9. Fixing rod; 10. Cutting head. Detailed Implementation

[0021] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0022] like Figure 1 As shown, this utility model discloses an auxiliary tightening device for electric vehicle assembly and production, comprising a cylinder 1, wherein a drive motor 5 is disposed in the upper part of the cylinder 1, such as... Figure 3 As shown, a fixed plate 7 is installed at the output end of the drive motor 5 via a rotating shaft 6. A fixed rod 9 is slidably installed at the lower part of the fixed plate 7, and a pressure spring 8 is wound around the fixed plate 7 between the fixed rod 9 and the rotating shaft 6. A cutter head 10 is installed at the bottom of the fixed rod 9. The fixed plate 7 is a square plate, which ensures that the fixed rod 9 will rotate when the fixed plate 7 rotates, thereby ensuring the stable rotation of the cutter head 10 and thus ensuring the stable progress of the installation work.

[0023] like Figure 2 As shown, a hollowed-out limiting block 3 is provided at the bottom of the cylinder 1 via a connecting rod 2. When the pressure spring 8 is in its normal state, the cutter head 10 passes through the limiting block 3, ensuring that the cutter head 10 can stably tighten the thread 4. An opening for the screw 4 to pass through is provided on one side of the limiting block 3, and a limiting groove for limiting the screw 4 is formed between the limiting block 3 and the cylinder 1. The compression of the pressure spring 8 inserts the screw 4 into the limiting groove between the cylinder 1 and the limiting block 3. The rebound force of the pressure spring 8 causes the cutter head 10 to contact the top of the screw 4, rotating the screw. The screw 4 allows the cutting head 10 to be inserted into the slot at the top of the screw 4. The drive motor 5 drives the cutting head 10 to rotate, which in turn drives the screw 4 to rotate, thus performing the installation work. This ensures the stability of the position between the screw 4 and the cutting head 10, reducing the possibility of the screw 4 being misaligned or not being able to be installed. After the screw 4 part extending out of the bottom of the limiting block 3 is installed, the limiting block 3 is separated from the screw 4 through the opening. The return force of the pressure spring 8 allows the cutting head 10 to pass through the limiting block 3, thus continuing the installation work on the screw 4.

[0024] The limiting block 3 consists of two arc-shaped magnetic blocks, both rotatably connected to the connecting rod 2. One end of the two arc-shaped magnetic blocks is hinged to the connecting rod 2, and the other end of the two arc-shaped magnetic blocks is attracted by opposite poles. By changing the opening distance of the limiting block 3, which is hinged at one end and attracted at the other end, the device can limit screws 4 of different diameters, thus making the device suitable for more installation work and increasing its applicability. When the screw 4 is located in the limiting groove, the bottom of the screw 4 penetrates the limiting block 3, and the length of the screw 4 extending out of the bottom of the limiting block 3 is at least one-third of the total length of the screw 4. By extending the screw 4 out of the bottom of the limiting block 3 to a sufficient length, it is possible to install part of the screw 4 when the screw 4 and the cutter head 10 are in a stable position. The stability of the screw 4 is ensured by the installed part, which is conducive to the subsequent stable and complete installation of the screw 4. The inner diameter of the limiting block 3 gradually decreases from the side closer to the cylinder 1 to the side farther away from the cylinder 1. This setting can increase the length of the screw extending out of the bottom of the limiting block 3, thereby increasing the stability of the screw 4 and further facilitating the subsequent stable and complete installation of the screw 4.

[0025] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. An auxiliary tightening device for electric vehicle assembly and production, characterized in that: The device includes a cylindrical body (1), a drive motor (5) is provided in the upper part of the cylindrical body (1), and a screwdriver (10) for tightening is provided at the output end of the drive motor (5). A limiting block (3) with a hollowed-out middle is provided at the bottom of the cylindrical body (1) through a connecting rod (2). An opening for a screw (4) to pass through is provided on one side of the limiting block (3), and a limiting groove for limiting the screw (4) is formed between the limiting block (3) and the cylindrical body (1).

2. The auxiliary tightening device for electric vehicle assembly production according to claim 1, characterized in that: The output end of the drive motor (5) is connected to a fixed plate (7) via a rotating shaft (6). A fixed rod (9) connected to the cutter head (10) is slidably provided on the lower part of the fixed plate (7), and a pressure spring (8) is wound around the fixed plate (7) between the fixed rod (9) and the rotating shaft (6).

3. The auxiliary tightening device for electric vehicle assembly production according to claim 2, characterized in that: When the pressure spring (8) is in its normal state, the cutter head (10) penetrates the limiting block (3).

4. The auxiliary tightening device for electric vehicle assembly production according to claim 3, characterized in that: When the screw (4) is located in the limiting groove, the bottom of the screw (4) penetrates the limiting block (3), and the length of the screw (4) extending out of the bottom of the limiting block (3) is at least one-third of the total length of the screw (4).

5. The auxiliary tightening device for electric vehicle assembly production according to claim 1, characterized in that: The limiting block (3) consists of two arc-shaped magnetic blocks that are rotatably connected to the connecting rod (2). One end of the two arc-shaped magnetic blocks is hinged through the connecting rod (2), and the other end of the two arc-shaped magnetic blocks is attracted by opposite polarities.

6. The auxiliary tightening device for electric vehicle assembly production according to claim 5, characterized in that: The inner diameter of the limiting block (3) gradually decreases from the side closer to the cylinder (1) to the side farther away from the cylinder (1).

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