Air bag clamping mechanism of SAB air bag folding device

Abstract

The utility model provides an air bag clamping mechanism of an SAB air bag folding device, and the air bag clamping mechanism is characterized in that a tail clamping assembly is arranged in a first mounting space and slidably arranged at the top of a rack, the tail clamping assembly comprises a plurality of tail grabbing and clamping groups, and each tail grabbing and clamping group comprises two tail grabbing and clamping parts which are used for grabbing and clamping the side, away from a jig generator, of an air bag to be folded; the jig clamping assembly is arranged in the first installation space and comprises a clamping frame body, the clamping frame body is arranged on the base in a sliding mode, a first clamping assembly is installed on the clamping frame body, a positioning plate is detachably installed on the side, away from the base, of the first clamping assembly, and a positioning hole is formed in the positioning plate. A generator positioning assembly of the jig generator penetrates through the positioning hole and then is clamped by the first clamping assembly. According to the structure, the positioning plate (provided with the positioning hole) in the jig clamping assembly is matched with the generator positioning assembly (bolt column) of the jig generator in an inserted mode, so that three-dimensional space accurate positioning of the jig generator is achieved, and the consistency of the folding path of the air bag is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile airbag, in particular to a gas bag clamping mechanism of SAB gas bag folding device. BACKGROUND

[0002] In the existing SAB gas bag folding device, the gas bag clamping mechanism mostly adopts a fixed clamping structure, which has the following defects: during the process of loading (clamping the gas bag to be folded to facilitate subsequent folding), the relative position of the tail of the gas bag and the generator of the jig is adjusted manually, which is prone to misalignment of the gas bag folding due to operation errors, affecting the consistency of the product. CONTENT OF THE UTILITY MODEL

[0003] In view of the above defects or deficiencies in the prior art, the present application aims to provide a gas bag clamping mechanism of SAB gas bag folding device to improve the positioning accuracy of loading and provide accurate guarantee for subsequent folding.

[0004] The SAB gas bag folding device comprises a base, a rack is arranged on the base, a first mounting space is formed between the base and the rack; the gas bag clamping mechanism comprises:

[0005] A tail clamping assembly is arranged in the first mounting space and is slidably arranged on the top of the rack, the tail clamping assembly comprises a plurality of tail clamping groups, each tail clamping group comprises two tail clamping groups for clamping the side of the gas bag to be folded away from the generator of the jig;

[0006] A jig clamping assembly is arranged in the first mounting space, the jig clamping assembly comprises a clamping frame body, the clamping frame body is slidably arranged on the base, a first clamping assembly is mounted on the clamping frame body, a positioning plate is detachably mounted on the side of the first clamping assembly away from the base, a positioning hole is arranged on the positioning plate, and the generator positioning assembly of the generator of the jig penetrates through the positioning hole and is clamped by the first clamping assembly.

[0007] According to the technical scheme provided by the embodiment of the present application, the generator of the jig has a recessed end at one end along its extension direction; a positioning block is arranged on the positioning plate, the positioning block is matched with the shape of the recessed end of the generator of the jig, and the installation position of the positioning block on the positioning plate corresponds to the working direction of the recessed end.

[0008] According to the technical scheme provided by the embodiment of the present application, a first sliding rail is arranged on the base, the clamping frame body comprises a bottom plate, the bottom plate is slidably arranged on the first sliding rail, two opposite side plates are arranged on the bottom plate, a second mounting space is formed between the bottom plate and the side plates, and the first clamping assembly is mounted in the second mounting space.

[0009] According to the technical scheme provided by the embodiment of the present application, the positioning plate is detachably mounted on the side plate.

[0010] According to the technical scheme provided by the embodiment of the present application, the first detection assembly is arranged in the second mounting space and is used to detect whether the jig generator is mounted on the jig clamping assembly.

[0011] According to the technical scheme provided by the embodiment of the present application, the jig clamping assembly further comprises clamping plates arranged on both sides of the positioning plate along the width direction of the positioning plate, and the clamping plates are used to abut against both sides of the jig generator.

[0012] According to the technical scheme provided by the embodiment of the present application, the side plate is further provided with a second detection assembly, and the second detection assembly is used to identify the model category of the air bag to be folded placed on the jig clamping assembly.

[0013] According to the technical scheme provided by the embodiment of the present application, the first sliding part is arranged on the top of the rack, the tail clamping assembly comprises a first support frame slidably arranged on the first sliding part, two mounting columns are arranged on the side of the first support frame away from the first sliding part, and the tail clamping assembly is arranged on the mounting columns.

[0014] According to the technical scheme provided by the embodiment of the present application, two groups of tail clamping assemblies are arranged on the mounting columns along the extension direction of the mounting columns, and the two groups of tail clamping assemblies are arranged on opposite surfaces of the mounting columns, respectively. The tail clamping assembly comprises a U-shaped placement part, the U-shaped placement part is used to place the tail of the air bag, one side of the U-shaped placement part is provided with a clamping part, the clamping end of the clamping part penetrates one surface of the U-shaped placement part and extends into the U-shaped placement part, and the clamping end of the clamping part and the other inner wall of the U-shaped placement part together clamp the tail of the air bag.

[0015] According to the technical scheme provided by the embodiment of the present application, the inner wall of each U-shaped placement part is provided with a third detection assembly, the third detection assembly is used to detect whether the tail of the air bag is placed in the U-shaped placement part, the bottom of the base is provided with a control pedal, and the control pedal is used to control the clamping action of the clamping part corresponding to at least one U-shaped placement part in which the tail of the air bag is detected to be placed.

[0016] Compared with the prior art, the beneficial effects of the present application are: 1. High-precision positioning: through the insertion fitting of the positioning plate (providing positioning holes) in the jig clamping assembly and the generator positioning assembly (bolt column) of the jig generator, combined with the shape adaptation of the positioning block and the recessed end of the jig generator, three-dimensional space accurate positioning of the jig generator is realized, eliminating manual positioning errors and ensuring the consistency of the air bag folding path. 2. Automatic identification of product number and improvement of compatibility: the second detection assembly is integrated on the side plate, which can automatically identify the characteristic marks (such as two-dimensional code, size mark) of different product number air bags, trigger adaptive adjustment of clamping parameters (position correspondence of tail clamping assembly and jig clamping assembly, synchronous movement, etc.), when the air bag product number is changed, only the positioning plate needs to be replaced to realize the positioning of air bags of different product numbers, significantly improving the efficiency of mixed production of multiple varieties, facilitating quick replacement of positioning modules according to the type of jig generator, and reducing the cost of equipment modification. 3. Enhanced clamping stability: the U-shaped placement part and clamping part of the tail clamping assembly are designed in cooperation, and the linkage control of the third detection assembly and the control pedal is used to trigger the clamping action only after detecting that the air bag tail is in place, avoiding empty clamping or insufficient clamping force. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The structure schematic diagram of the jig clamping assembly provided by the embodiment of the present application is shown in the figure.

[0018] Figure 2 The structure schematic diagram of the positioning plate provided by the embodiment of the present application is shown in the figure.

[0019] Figure 3 The structure schematic diagram of the tail clamping assembly provided by the embodiment of the present application is shown in the figure.

[0020] Figure 4 The structure schematic diagram of the first sliding part of the tail clamping assembly provided by the embodiment of the present application is shown in the figure.

[0021] Figure 5 The structure schematic diagram of the air bag clamping mechanism of the SAB air bag folding device provided by the embodiment of the present application is shown in the figure.

[0022] The text annotations in the figure represent:

[0023] 1. Jig clamping assembly; 11. Sliding plate; 12. Clamping frame; 121. Bottom plate; 122. Side plate; 13. Second detection assembly; 14. First clamping assembly; 15. Clamping plate; 16. First sliding rail; 2. Tail clamping assembly; 21. First support frame; 22. Mounting column; 23. Tail clamping; 231. U-shaped placement part; 24. Clamping part; 25. First sliding part; 3. Control pedal; 4. Base; 5. Rack. DETAILED DESCRIPTION

[0024] The application will be described in further detail below with reference to the drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not intended to limit the application. In addition, it should be noted that only parts related to the application are shown in the drawings for ease of description.

[0025] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and embodiments.

[0026] Embodiment 1

[0027] As mentioned in the background, in order to solve the problems in the prior art, the present application provides a gas bag clamping mechanism of a SAB gas bag folding device. The SAB gas bag folding device comprises a base 4, wherein a rack 5 is arranged on the base 4, and an installation space is formed between the base 4 and the rack 5; a gas bag clamping mechanism is arranged in the installation space, and is used for clamping a to-be-folded gas bag and moving the to-be-folded gas bag to an upper part work station or a folding work station; a folding mechanism comprises a left inserting and folding assembly and a right inserting and folding assembly which are arranged in the installation space and are distributed on both sides of the folding work station along a first direction, the left inserting and folding assembly comprises a plurality of positive inserting pieces which are movable along the first direction, the right inserting and folding assembly comprises a plurality of negative inserting pieces which are movable towards the positive inserting pieces, the negative inserting pieces and the positive inserting pieces are arranged in a staggered manner along a second direction, and the second direction is perpendicular to the first direction; a clamping mechanism is arranged on a side of the folding work station which is away from the upper part work station along a third direction, and the third direction is perpendicular to the first direction and the second direction, respectively; the clamping mechanism is mechanically linked with a driving unit of the positive inserting pieces and the negative inserting pieces; when the positive inserting pieces and the negative inserting pieces complete a folding action, the clamping mechanism clamps a folding part, and after the clamping mechanism clamps the folding part, the driving unit triggers the positive inserting pieces and the negative inserting pieces to be withdrawn in sequence.

[0028] As Figures 1-5 shown, the gas bag clamping mechanism comprises:

[0029] a tail clamping assembly 2 which is arranged in the first installation space and is slidably arranged on the top of the rack 5, and the tail clamping assembly 2 comprises a plurality of tail clamping groups 23, each of the tail clamping groups 23 comprises two tail clamps 23 which are used for clamping a side of the to-be-folded gas bag which is away from a jig generator;

[0030] The jig clamping assembly 1 is arranged in the first mounting space, and the jig clamping assembly 1 comprises a clamping frame body 12 which is slidably arranged on the base 4, and a first clamping assembly 14 is arranged on the clamping frame body 12, and a positioning plate is detachably arranged on the side of the first clamping assembly 14 away from the base 4, and the positioning plate is provided with a positioning hole, and the generator positioning assembly of the jig generator is clamped by the first clamping assembly 14 after penetrating through the positioning hole.

[0031] Specifically, the first mounting space is a vertical area between the base 4 and the rack 5, and is used for accommodating various mechanisms (including clamping mechanisms) of the folding device. The tail clamping group 23 is composed of two clamping units of clamping jaws which are symmetrically distributed and are used for fixing the tail of the air bag. The base 4 and the rack 5 are fixed by bolts, and the top of the rack 5 is processed into a first sliding part 25; the clamping frame body 12 is embedded into the first sliding rail 16 of the base 4 through the bottom plate 121 to realize sliding. The positioning plate is detachably arranged on the side plate 122 of the clamping frame body 12 by bolts, and the diameter of the positioning hole matches the positioning bolt column of the jig generator. The tail clamping assembly 2 and the jig clamping assembly 1 are first adapted in position through the sliding rail to match air bags of different sizes, and then are matched through the positioning hole and the bolt column: the jig generator is initially positioned by inserting the positioning bolt column into the positioning hole, and then is clamped by the first clamping assembly 14.

[0032] The use process is described: the operator inserts the positioning bolt column on the jig generator side of the air bag to be folded into the positioning hole of the positioning plate, starts the first clamping assembly 14 (which can be selected as a clamping cylinder) to clamp the positioning bolt column, completes the positioning and fixing of the generator end, then manually lifts the air bag away from the generator end and clamps it on the tail clamping assembly 2 (at this time, the tail clamping assembly 2 and the jig clamping assembly 1 have been adaptively matched in position), when both are clamped, the workpiece is completed, the air bag clamping mechanism is rotated by 90 degrees to change from horizontal to vertical, and moves from the upper position to the folding position to complete the subsequent folding action, and when the folding action is to be performed, the tail clamping 23 of the tail clamping assembly 2 releases the clamping of the air bag to be folded at the beginning of the folding action.

[0033] In a preferred embodiment, one end of the jig generator along its extension direction has a recessed end; the positioning plate is provided with a positioning block which is matched in shape with the recessed end of the jig generator, and the installation position of the positioning block on the positioning plate corresponds to the working position of the recessed end.

[0034] Specifically, the jig generator has a concave end, a positioning block with a shape matching the concave end is installed on the positioning plate, and the position of the positioning block corresponds to the working position of the concave end. Concave end: the groove structure of the end of the jig generator, used for embedding with the positioning block. Positioning block: a metal block with a protrusion, the shape of which is complementary to the concave end. The positioning block is integrally formed with the positioning plate and fixed on the edge side of the positioning plate, and the height of the protrusion is consistent with the depth of the concave end. Not only does it realize shape interlocking: the concave-convex matching of the concave end and the positioning block restricts the lateral displacement and rotational freedom of the jig generator, but also it can be physically identified to judge whether the direction of the air bag is correct. SAB air bags are divided into left and right parts, and when the direction is reversed, the air bag cannot be placed down and is blocked by the positioning block, prompting the person placing the part to correct the direction.

[0035] In a preferred embodiment, a first sliding rail 16 is arranged on the base 4, the clamping frame body 12 comprises a bottom plate 121, the bottom plate 121 is slidably arranged on the first sliding rail 16, two opposite side plates 122 are arranged on the bottom plate 121, and a second mounting space is formed between the bottom plate 121 and the side plates 122, and the second mounting space is used for mounting the first clamping assembly 14.

[0036] Specifically, the bottom plate 121 is slidably arranged on the first sliding rail 16 through the sliding plate 11,

[0037] In a preferred embodiment, the positioning plate is detachably mounted on the side plate 122.

[0038] Specifically, the positioning plate is detachably mounted on the side plate 122. The positioning plate is fixed on the front end of the side plate 122 by four groups of bolts, and the bolt hole positions are universal for different types of positioning plates. Quick model switching: different jig generators can be adapted by replacing the positioning plate. When switching the air bag model, only the positioning plate needs to be replaced (time consumption <5 minutes), and the overall structure does not need to be adjusted.

[0039] In a preferred embodiment, a first detection assembly is further arranged in the second mounting space, and the first detection assembly is used for detecting whether the jig generator is mounted on the jig clamping assembly 1.

[0040] Specifically, the first detection assembly is arranged in the second mounting space for detecting whether the jig generator is mounted in place. The first detection assembly can be an optical sensor, and the emitting end and the receiving end are arranged on the two sides of the second mounting space. The optical sensor is fixed on the center of the bottom plate 121 by a bracket, and the detection light beam is flush with the bottom of the jig generator. Light path blocking detection: the jig generator blocks the light beam when it is in place, triggering the clamping action. Prevents the clamping mechanism from malfunctioning and improves safety.

[0041] In a preferred embodiment, the jig clamping assembly 1 further comprises clamping plates 15 arranged on both sides of the positioning plate along the width direction thereof, which are used to abut against both sides of the jig generator.

[0042] Specifically, the clamping plates 15 are arranged on both sides of the positioning plate and are L-shaped steel plates fixed on both sides of the positioning plate by bolts, and the inner side of each clamping plate 15 can be attached with a rubber buffer layer. Lateral limiting: the clamping plates 15 are in contact with the side surface of the jig generator to offset the lateral force in the folding process and prevent the jig generator from being laterally deviated in high-speed folding.

[0043] In a preferred embodiment, the side plate 122 is further provided with a second detection assembly 13, which is used to identify the model category of the air bag to be folded placed on the jig clamping assembly 1.

[0044] Specifically, the second detection assembly 13 is arranged on the side plate 122 and includes three sensors. Optionally, the three sensors can have different sequences according to the size or shape of the air bag, such as 100, 101, 111, etc., which correspond to different models of air bags. The second detection assembly 13 identifies the model category of the air bag. After identifying the model, the system automatically retrieves the corresponding clamping parameters (such as the positional relationship of the tail clamping assembly 2 relative to the jig clamping assembly 1). This implementation realizes mixed-line production of multiple models and reduces manual switching time (efficiency is improved by 30%).

[0045] In a preferred embodiment, the top of the rack 5 is provided with a first sliding part 25, and the tail clamping assembly 2 includes a first support frame 21 slidably arranged on the first sliding part 25, and two mounting columns 22 are arranged on the side of the first support frame 21 away from the first sliding part 25, and the tail clamping assembly 23 is arranged on the mounting columns 22.

[0046] In a preferred embodiment, the mounting columns 22 are provided with two groups of tail clamping assemblies 23 arranged on opposite sides of the mounting columns 22 along the extension direction thereof, and each tail clamping assembly 23 includes a U-shaped placement part 231 for placing the tail of the air bag, and a clamping part 24 arranged on one side of the U-shaped placement part 231, and the clamping end of the clamping part 24 penetrates through one side of the U-shaped placement part 231 and extends into the U-shaped placement part 231 to clamp the tail of the air bag together with the inner wall of the other side of the U-shaped placement part 231.

[0047] Specifically, the U-shaped groove is made of aluminum alloy, and the clamping part 24 is a pneumatic clamping jaw driven by a pneumatic cylinder, and the clamping force can be adjusted (50-200N). Three-point clamping can be realized: the U-shaped groove supports the air bag, the clamping part 24 applies pressure from the side to form stable clamping, avoids wrinkles on the tail of the air bag, and increases the clamping contact area.

[0048] In a preferred embodiment, the inner wall of each U-shaped placement portion 231 is provided with a third detection assembly for detecting whether the air bag tail is placed in the U-shaped placement portion 231; and the bottom of the base 4 is provided with a control pedal 3 for controlling the clamping action of the clamping portion 24 corresponding to the U-shaped placement portion 231 in which the air bag tail is detected to be placed.

[0049] Specifically, the inner wall of the U-shaped placement portion 231 is provided with a third detection assembly, and the bottom of the base 4 is provided with a control pedal 3, which triggers clamping after detecting the air bag. The third detection assembly can be an infrared transmission sensor, which detects whether the air bag is placed. The sensor is embedded in one side of the U-shaped groove and is signal-linked with the control pedal 3. Only when the sensor detects the air bag and the pedal is stepped down, the clamping portion 24 will act. This avoids empty clamping or damage to the air bag due to excessive clamping force. The operator places the air bag tail into the U-shaped groove, steps on the control pedal 3, and the sensor triggers clamping after detecting the air bag. If the air bag is not detected, the pedal is invalid.

[0050] The principles and implementation modes of the present application are described by using specific examples in the present application. The above examples are only used to help understand the method of the present application and its core idea. The above description is only the preferred embodiment of the present application. It should be pointed out that due to the limitation of language expression, there are infinite specific structures. For ordinary skilled persons in the art, without departing from the principles of the present application, some improvements, refinements or changes can be made, or the above technical features can be combined in an appropriate way; these improvements, refinements, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, shall be regarded as the protection scope of the present application.

Claims

1. A gas bag clamping mechanism of a SAB gas bag folding device, the SAB gas bag folding device comprising a base (4) provided with a frame (5), a first installation space being formed between the base (4) and the frame (5); characterized in that, The air bag clamping mechanism comprises: A tail clamping assembly (2) is arranged in the first mounting space and is slidably arranged on the top of the rack. The tail clamping assembly (2) comprises a plurality of tail clamping groups, and each tail clamping group comprises two tail clamps (23) for clamping the side of the air bag away from the jig generator. A jig clamping assembly (1) is arranged in the first mounting space. The jig clamping assembly (1) comprises a clamping frame (12) slidably arranged on the base. A first clamping assembly (14) is arranged on the clamping frame (12). A positioning plate is detachably arranged on the side of the first clamping assembly (14) away from the base. The positioning plate is provided with a positioning hole. After the generator positioning assembly of the jig generator penetrates the positioning hole, the jig generator is clamped by the first clamping assembly (14).

2. The air bag clamping mechanism of the SAB air bag folding apparatus according to claim 1, characterized by: The jig generator has a recessed end at one end along its extension direction. The positioning plate is provided with a positioning block. The positioning block is matched with the shape of the recessed end of the jig generator. The installation position of the positioning block on the positioning plate corresponds to the working position of the recessed end.

3. The air bag clamping mechanism of the SAB air bag folding apparatus according to claim 1, characterized by: The base is provided with a first sliding rail (16). The clamping frame (12) comprises a bottom plate (121) slidably arranged on the first sliding rail (16). The bottom plate (121) is provided with two oppositely arranged side plates (122). A second mounting space is formed between the bottom plate (121) and the side plates (122). The second mounting space is used for mounting the first clamping assembly (14).

4. The airbag clamping mechanism of the SAB airbag folding apparatus according to claim 3, characterized by: The positioning plate is detachably arranged on the side plate (122).

5. The airbag clamping mechanism of the SAB airbag folding apparatus according to claim 3, characterized by: The second mounting space is further provided with a first detection assembly. The first detection assembly is used for detecting whether the jig generator is arranged on the jig clamping assembly (1).

6. The airbag clamping mechanism of the SAB airbag folding apparatus according to claim 1, characterized by: The jig clamping assembly (1) further comprises clamping plates (15) arranged on both sides of the positioning plate along the width direction. The clamping plates (15) are used for abutting against both sides of the jig generator.

7. The airbag clamping mechanism of the SAB airbag folding apparatus according to claim 3, characterized by: The side plate (122) is further provided with a second detection assembly (13). The second detection assembly (13) is used for identifying the model number category of the air bag to be folded arranged on the jig clamping assembly (1).

8. The airbag clamping mechanism of the SAB airbag folding apparatus according to claim 1, characterized by: The top of the rack is provided with a first sliding part (25). The tail clamping assembly (2) comprises a first support frame (21) slidably arranged on the first sliding part (25). The first support frame (21) is provided with two mounting columns (22) away from the first sliding part (25). The mounting columns (22) are provided with the tail clamps (23).

9. The airbag clamping mechanism of the SAB airbag folding device according to claim 8, characterized in that: The mounting column (22) is provided with two groups of tail clamping (23) along the extension direction, and the two groups of tail clamping (23) are respectively arranged on the opposite surfaces of the mounting column (22). The tail clamping (23) comprises a U-shaped placing part (231) for placing the tail of the air bag. One side of the U-shaped placing part (231) is provided with a clamping part (24), and the clamping end of the clamping part (24) penetrates one side of the U-shaped placing part (231) and extends into the U-shaped placing part (231) to clamp the air bag tail together with the inner wall of the other side of the U-shaped placing part (231).

10. The airbag clamping mechanism of the SAB airbag folding device according to claim 9, characterized in that: The inner wall of each U-shaped placing part (231) is provided with a third detection assembly for detecting whether the air bag tail is placed in the U-shaped placing part (231). The base bottom is provided with a control pedal (3) for controlling the clamping action of the clamping part (24) corresponding to at least one U-shaped placing part (231) where the air bag tail is detected to be placed.

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