Automatic tightening machine for automobile parts

Abstract

The utility model relates to the technical field of automobile part machining, and provides an automatic tightening machine for automobile parts, which comprises a support and an overhanging arm mounted at the top end of the support, a multi-workpiece mounting column is arranged below the overhanging arm, eight workpiece mounting holes are uniformly formed in the multi-workpiece mounting column, and the workpiece mounting holes are connected with the support. A plurality of workpiece mounting holes are formed in the support, tightening workpieces are mounted in the workpiece mounting holes, a connecting shaft is mounted in the center of the top of the multi-workpiece mounting column, the top end of the connecting shaft is in butt joint with the output end of a station conversion driving mechanism mounted on the cantilever arm, a stepping air cylinder is mounted in the support, and the output end of the stepping air cylinder is in butt joint with a tightening driving part. The automatic tightening machine for the automobile parts has the remarkable beneficial effects of improving the production efficiency, being accurate in positioning, flexible in adaptability, safe, reliable, personalized in design, reducing manual intervention and the like, and is an important component of a modern production line in the automobile manufacturing industry.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts processing, in particular to an automatic tightening machine for automobile parts. Background Art

[0002] In the automotive manufacturing industry, efficient, accurate and safe production lines are essential to ensure product quality and improve production efficiency. The manufacturing of automotive parts involves a large number of tightening operations, such as installing screws and nuts, which are directly related to the overall quality and performance of the car. Traditional production lines often rely on manual operations, which are prone to operational errors, low production efficiency and safety hazards.

[0003] Disadvantages of existing automotive parts tightening machines:

[0004] Inaccurate positioning: Traditional tightening machines have certain difficulties in switching and positioning workpieces. This may cause the tightening tool to be unable to accurately align with the target position, causing product quality problems, and also increasing the time cost of adjustment and correction.

[0005] Lack of flexibility: Due to the fixed design of traditional tightening machines, it is difficult to adapt to parts of different specifications and sizes. Each change of part type requires a lot of time to adjust and adapt, which limits the flexibility of the production line.

[0006] Lack of personalized design: Traditional tightening machines often use the same type of tightening tools, and have limited adaptability to different types of nuts, leading to certain production bottlenecks.

[0007] Over-reliance on manual intervention: Traditional tightening machines often require manual operation to complete tasks such as workpiece switching, positioning and monitoring. Excessive manual intervention can easily introduce errors and reduce the level of automation of the production line.

[0008] Therefore, this invention proposes a kind of automatic tightening machine for automobile parts to solve the above problems. Utility Model Content

[0009] In order to overcome the defects of the prior art, the utility model aims to provide an automatic tightening machine for automobile parts.

[0010] To achieve the above-mentioned purpose, the technical solution of the utility model is implemented as follows: an automated tightening machine for automotive parts, comprising a bracket and a cantilever arm installed on the top of the bracket, a multi-workpiece mounting column is arranged below the cantilever arm, 8 workpiece mounting holes are evenly opened on the multi-workpiece mounting column, tightening workpieces are installed inside the workpiece mounting holes, a connecting shaft is installed at the top center of the multi-workpiece mounting column, the top end of the connecting shaft is connected to the output end of the workstation conversion drive mechanism installed on the cantilever arm, a stepping cylinder is installed inside the bracket, and the output end of the stepping cylinder is connected to the tightening drive member.

[0011] Preferably, the station conversion drive mechanism comprises:

[0012] A transmission gear connected to the top end of the connecting shaft;

[0013] a driving gear meshed with the right side of the transmission gear;

[0014] A stepper motor is installed at the front end of the cantilever arm, and a driving end of the stepper motor is connected to the center of the driving gear.

[0015] Preferably, the tightening workpiece comprises:

[0016] A tightening stud is arranged inside the corresponding workpiece mounting hole, and the bottom end of the tightening stud is configured to fit the shape of the nut to be tightened;

[0017] The fixing sleeve is rotatably sleeved on the middle section of the outer side of the tightening stud, and the fixing sleeve is slidably engaged with the inside of the workpiece mounting hole as a whole;

[0018] A return spring is installed at the bottom end of the workpiece installation hole, and the top end of the return spring is pressed tightly against the lower end surface of the fixed sleeve.

[0019] Preferably, the tightening drive comprises:

[0020] A side support arm connected to the upper and lower telescopic driving ends of the stepping cylinder;

[0021] A driving motor installed at the front end of the side support arm;

[0022] A butt joint cap butted against the output end of the driving motor, the butt joint cap being located just above the tightening workpiece on the far left.

[0023] Preferably, the inner shape of the butt cap is the same as the top shape of each of the tightening workpieces.

[0024] Preferably, the transmission ratio between the driving gear and the transmission gear is set to 1:1.

[0025] The beneficial effects of the utility model are embodied in:

[0026] Precise positioning: The stepper motor and transmission gear system of the station conversion drive mechanism ensure the accurate angle rotation of the connecting shaft, so that the tightening workpiece can be accurately positioned to the required tightening station, ensuring that each component can be processed correctly.

[0027] Flexible adaptability: The workpiece mounting holes set on the multi-workpiece mounting column allow fastening workpieces of different specifications and sizes to be processed simultaneously. This increases the adaptability of the equipment and enables it to be used in the production of diversified automotive parts.

[0028] Safe and reliable: The design of the tightening workpiece takes into account the use of a return spring to ensure that the tightening workpiece can be safely recovered into the workpiece mounting hole during non-tightening operations, reducing possible interference and safety risks.

[0029] Personalized design: The bottom end of the tightening stud in each tightening workpiece has a different shape, such as plum blossom, flat, hexagonal, etc., which ensures the adaptation to different types of nuts and increases the flexibility of the equipment.

[0030] Reduce manual intervention: The use of stepping cylinders and tightening drive parts reduces dependence on manual operation and the possibility of manual intervention, thereby reducing human operation errors and improving the stability and reliability of the production line.

[0031] In summary, this type of automated tightening machine for automotive parts has significant beneficial effects in improving production efficiency, precise positioning, flexible adaptability, safety and reliability, personalized design, and reducing manual intervention. It is an important part of the modern production line in the automotive manufacturing industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In the attached picture:

[0033] Figure 1 It is a structural schematic diagram of the utility model;

[0034] Figure 2 It is a half-cut structural schematic diagram of the utility model;

[0035] Figure 3 It is a schematic diagram of the structure of the utility model without a bracket and in a cantilever arm state;

[0036] Figure 4 It is a structural schematic diagram of the station conversion drive mechanism of the utility model;

[0037] Figure 5 It is a structural schematic diagram of a workpiece mounting column of the utility model;

[0038] Figure 6 This is a schematic diagram of the explosive separation structure of the tightening workpiece of the utility model

[0039] Figure 7 This is a structural diagram of the tightening drive component of the utility model

[0040] Description of reference numerals:

[0041] 1. Bracket; 2. Cantilever arm; 3. Workstation conversion drive mechanism; 4. Connecting shaft; 5. Workpiece mounting column; 6. Tightening workpiece; 7. Tightening drive member; 8. Stepping cylinder;

[0042] 31. Transmission gear; 32. Driving gear; 33. Stepping motor;

[0043] 51. Workpiece mounting hole;

[0044] 61. Tighten the stud; 62. Fix the sleeve; 63. Return spring;

[0045] 71. Side support arm; 72. Driving motor; 73. Docking cap. DETAILED DESCRIPTION

[0046] The utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in 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.

[0047] It should be noted that if the utility model embodiments involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0048] In addition, "multiple" means more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0049] Please refer to the instruction manual Figure 1-Figure 7 The utility model provides an automatic tightening machine for automobile parts:

[0050] It includes a bracket 1 and a cantilever arm 2 installed on the top of the bracket 1, a multi-workpiece mounting column 5 is arranged below the cantilever arm 2, 8 workpiece mounting holes 51 are evenly opened on the multi-workpiece mounting column 5, a tightening workpiece 6 is installed inside the workpiece mounting hole 51, a connecting shaft 4 is installed at the top center of the multi-workpiece mounting column 5, the top of the connecting shaft 4 is connected to the output end of the workstation conversion drive mechanism 3 installed on the cantilever arm 2, a stepping cylinder 8 is installed inside the bracket 1, and the output end of the stepping cylinder 8 is connected to the tightening drive component 7.

[0051] The station conversion drive mechanism 3 comprises:

[0052] A transmission gear 31 connected to the top of the connecting shaft 4;

[0053] A driving gear 32 meshed with the right side of the transmission gear 31;

[0054] A stepper motor 33 is installed at the front end of the cantilever arm 2, and the driving end of the stepper motor 33 is connected to the center of the driving gear 32;

[0055] Among them, the station conversion drive mechanism 3 is used to drive the connecting shaft 4 to rotate at a specific angle, and then drive the workpiece mounting column 5 to rotate at a specific angle, so that the tightening workpiece 6 suitable for this screw tightening operation can be rotated to the leftmost tightening station.

[0056] The tightening workpiece 6 comprises:

[0057] A tightening stud 61 is arranged inside the corresponding workpiece mounting hole 51, and the bottom end of the tightening stud 61 is configured to fit the shape of the nut to be tightened;

[0058] The fixing sleeve 62 which is sleeved on the middle section of the outer side of the tightening stud 61 is rotated, and the fixing sleeve 62 as a whole slides up and down to be clamped in the inside of the workpiece mounting hole 51;

[0059] A return spring 63 is installed at the bottom end of the workpiece mounting hole 51, and the top end of the return spring 63 is pressed tightly against the lower end surface of the fixed sleeve 62;

[0060] Among them, the design of the tightening workpiece 6 can retract its bottom end into the workpiece mounting hole 51 when the screw tightening operation is not performed, and no subsequent interference operation occurs. The shape of the bottom end of the tightening stud 61 in each tightening workpiece 61 is different, including plum blossom shape, straight shape, external hexagonal shape and other screwdriver end shapes.

[0061] The tightening drive member 7 comprises:

[0062] A side arm 71 connected to the upper and lower telescopic driving end of the stepping cylinder 8;

[0063] A driving motor 72 installed at the front end of the side arm 71;

[0064] A butt-jointed cap 73 on the output end of the driving motor 72, wherein the butt-jointed cap 73 is located just above the tightening workpiece 6 on the far left;

[0065] Among them, the docking cap 73 can slide downward along the output end of the stepping cylinder 8 until the docking cap 73 is sleeved on the top of the tightening workpiece 6 on the far left, and then the tightening workpiece 6 can be driven to rotate rapidly by the driving motor 72, and can continue to be pressed down to press the bottom end of the tightening workpiece 6 out of the bottom of the workpiece mounting hole 51, and the screw tightening operation can be performed.

[0066] The internal shape of the butt joint cap 73 is the same as the top shape of each of the tightening workpieces 6, ensuring that when the butt joint cap 73 is sleeved on the top of the tightening workpiece 6, it can drive the top of the tightening workpiece 6 to rotate.

[0067] The transmission ratio between the driving gear 32 and the transmission gear 31 is set to 1:1;

[0068] How it works

[0069] Start the stepper motor 33 inside the station conversion drive mechanism 3, and drive the connecting shaft 4 to rotate a certain angle through the driving gear 32 and the transmission gear 31, so as to rotate the tightening workpiece 6 that meets the screw tightening operation of this batch of automobile parts to the leftmost work station, and then start the stepper cylinder 8 to drive the tightening drive part 7 to slide downward until the docking cap 73 inside it moves down and is sleeved on the top of the tightening workpiece 6 at this position, thus completing the driving docking operation. Thereafter, continue to press down to compress the reset spring 63 inside the tightening workpiece 6. At this time, the bottom end of the tightening stud 61 inside it passes through the bottom of the workpiece mounting hole 51, and then docks with the top of the screw to be tightened. Then, start the driving motor 72 to drive the tightening stud 61 to rotate quickly, thereby realizing the screw tightening operation.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0071] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0072] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automated tightening machine for automobile parts, comprising a bracket (1) and a cantilever arm (2) mounted on the top of the bracket (1), characterized in that: A multi-workpiece mounting column (5) is arranged below the cantilever arm (2), and eight workpiece mounting holes (51) are evenly arranged on the multi-workpiece mounting column (5), and tightening workpieces (6) are installed inside the workpiece mounting holes (51). A connecting shaft (4) is installed at the top center of the multi-workpiece mounting column (5), and the top end of the connecting shaft (4) is connected to the output end of the workstation conversion drive mechanism (3) installed on the cantilever arm (2). A stepping cylinder (8) is installed inside the bracket (1), and the output end of the stepping cylinder (8) is connected to the tightening drive component (7).

2. The automatic tightening machine for automobile parts according to claim 1, characterized in that: The workstation conversion drive mechanism (3) comprises: A transmission gear (31) connected to the top end of the connecting shaft (4); A driving gear (32) meshed with the right side of the transmission gear (31); A stepper motor (33) is mounted on the front end of the cantilever arm (2), and a driving end of the stepper motor (33) is butted against the center of the driving gear (32).

3. The automatic tightening machine for automobile parts according to claim 1, characterized in that: The tightening workpiece (6) comprises: A tightening stud (61) is arranged inside the corresponding workpiece mounting hole (51), and the bottom end of the tightening stud (61) is configured to fit the shape of a nut to be tightened; A fixing sleeve (62) is rotatably sleeved on the middle section of the outer side of the tightening stud (61), and the fixing sleeve (62) is integrally slid up and down to be clamped inside the workpiece mounting hole (51); A return spring (63) is mounted on the bottom end of the workpiece mounting hole (51), and the top end of the return spring (63) is pressed tightly against the lower end surface of the fixing sleeve (62).

4. The automatic tightening machine for automobile parts according to claim 1, characterized in that: The tightening drive member (7) comprises: A side support arm (71) connected to the upper and lower telescopic driving end of the stepping cylinder (8); A driving motor (72) mounted on the front end of the side support arm (71); A butt joint cap (73) butt jointed to the output end of the drive motor (72), the butt joint cap (73) being located directly above the tightening workpiece (6) on the far left.

5. The automatic tightening machine for automobile parts according to claim 4, characterized in that: The internal shape of the butt joint cap (73) is the same as the top shape of each of the tightening workpieces (6).

6. The automatic tightening machine for automobile parts according to claim 2, characterized in that: The transmission ratio between the driving gear (32) and the transmission gear (31) is set to 1:1.

Images