Clamping mechanism
By designing a clamping mechanism containing pneumatic fingers and guide components, the problem of poor flexibility of existing clamping mechanisms is solved, flexible adaptability clamping and accuracy improvement for products of different sizes is achieved, and the demand for multiple clamping mechanisms is reduced.
Patent Information
- Application Number
- CN202421703755.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-18
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-07-18
AI Technical Summary
The existing clamping mechanism can only be used for one or some products, and has poor flexibility and cannot adapt to products with large size changes, resulting in the need to be equipped with multiple clamping mechanisms, which increases the investment cost.
A clamping mechanism including a first support assembly, a pneumatic finger, a connecting plate, a jaw assembly and a guide assembly is designed. The connecting plate and jaw assembly are driven by the pneumatic fingers, combined with multiple mounting positions and guide assembly, to achieve flexible clamping of products of different sizes, and to improve clamping accuracy and accuracy through photoelectric sensors and laser sensors.
It realizes flexible and adaptable clamping for products of different sizes, improves clamping accuracy and structural accuracy, reduces the demand for multiple clamping mechanisms, and reduces costs.
Smart Images
Figure CN223160949U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automation equipment, in particular to a clamping mechanism. Background Art
[0002] At present, automation equipment is mostly used for product processing, assembly, inspection, etc., so as to achieve unmanned or less direct human participation in production and improve production efficiency. The clamping mechanism is used to fix the product so that it is located at an accurate position for processing, assembly or inspection. The existing clamping mechanisms can only be applied to clamping of one or some products, with poor flexibility. For products with large size variations, a variety of different clamping mechanisms need to be equipped, increasing the input cost. Content of the Utility Model
[0003] The purpose of the utility model is to provide a clamping mechanism with good flexibility, which can be applied to products of different sizes.
[0004] To achieve the above object, the utility model adopts the following technical solutions:
[0005] A clamping mechanism, comprising:
[0006] A first support assembly, including a first horizontal plate and two first vertical plates connected to the first horizontal plate, the first horizontal plate and the two first vertical plates being in a gate shape;
[0007] A pneumatic finger, arranged on the first horizontal plate, two clamping fingers of the pneumatic finger are respectively connected with connecting plates, and a plurality of mounting positions are arranged on the connecting plates;
[0008] Two jaw assemblies, correspondingly connected to the two connecting plates, and the jaw assemblies are alternatively arranged at the mounting positions of the connecting plates;
[0009] A first guiding assembly, including a first guide rail and a first slider slidably connected to the first guide rail, the first guide rail is arranged on the connecting plate, and the first slider is arranged on the first vertical plate.
[0010] In some possible implementation manners, the jaw assembly and the connecting plate are snap-connected.
[0011] In some possible implementation manners, a scale is arranged on the side surface of the connecting plate.
[0012] In some possible implementation manners, the jaw assembly includes a jaw body and a buffer pad, the buffer pad is arranged inside the jaw body, and the jaw body is arranged on the connecting plate.
[0013] In some possible implementation manners, the jaw assembly further includes a proximity sensor, the proximity sensor is arranged inside the jaw body and above the buffer pad.
[0014] In some possible embodiments, it further includes a first optoelectronic sensor and a first light-shielding sheet. The first optoelectronic sensor is disposed on the connecting plate, and the first light-shielding sheet is disposed on the first vertical plate. The first optoelectronic sensor can detect the first light-shielding sheet.
[0015] In some possible embodiments, it further includes a second support assembly, a limiting member, and an elastic member. The second support assembly includes a second horizontal plate and two second vertical plates connected to the second horizontal plate. The second horizontal plate and the two second vertical plates are in a "door" shape. The elastic member connects the second horizontal plate and the first horizontal plate, and the limiting member is disposed between the second horizontal plate and the first horizontal plate and connected to one of them.
[0016] In some possible embodiments, it further includes a second guiding assembly. The second guiding assembly includes a second guide rail and a second slider slidably connected to the second guide rail. The second guide rail is disposed on the first vertical plate, and the second slider is disposed on the second vertical plate.
[0017] In some possible embodiments, it further includes a second optoelectronic sensor and a second light-shielding sheet. The second optoelectronic sensor is disposed on the second vertical plate, and the second light-shielding sheet is disposed on the first horizontal plate. The second optoelectronic sensor can detect the second light-shielding sheet.
[0018] In some possible embodiments, it further includes a laser sensor disposed on the second horizontal plate.
[0019] Advantages of the present utility model:
[0020] A clamping mechanism provided by the present utility model. The pneumatic fingers perform a clamping action, driving the two connecting plates and the jaw assemblies on the connecting plates to move towards each other, thereby clamping the product. When replacing the product, the jaw assemblies are manually adjusted and installed at corresponding installation positions according to the product size. For example, when the product size is larger, the distance between the two jaw assemblies is correspondingly increased; when the product size is smaller, the distance between the two jaw assemblies is correspondingly decreased, so that it can be applicable to clamping products of different sizes, with good flexibility. A plurality of installation positions are arranged along the length direction of the connecting plate. By increasing the length of the connecting plate, the number of installation positions is increased to be applicable to clamping products of larger sizes. The first guiding assembly can ensure that the connecting plate and the jaw assemblies move along a preset direction, improving the structural accuracy and further improving the clamping accuracy. Description of the Drawings
[0021] Figure 1 is a schematic diagram of the clamping mechanism provided by the specific embodiment of the present utility model.
[0022] In the figure:
[0023] 1. First support assembly; 11. First horizontal plate; 12. First vertical plate; 2. Pneumatic finger; 3. Connecting plate; 31. Scale; 4. Claw assembly; 41. Claw body; 42. Buffer pad; 43. Proximity sensor; 44. Adapter; 45. Connecting piece; 5. First guiding assembly; 51. First guide rail; 52. First slider; 6. First photoelectric sensor; 7. First light-shielding piece; 8. Second support assembly; 81. Second horizontal plate; 82. Second vertical plate; 9. Limiting piece; 10. Elastic piece; 20. Second guiding assembly; 201. Second guide rail; 202. Second slider; 30. Second photoelectric sensor; 40. Second light-shielding piece; 50. Laser sensor. Detailed implementation manners
[0024] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present utility model clearer, the technical solutions of the embodiments of the present utility model will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present utility model.
[0025] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0026] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above and over", and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below and under", and "under the bottom of" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.
[0027] This embodiment provides a clamping mechanism, as Figure 1As shown in the figure, it includes a first support assembly 1, a pneumatic finger 2, two connecting plates 3, two jaw assemblies 4, and a first guiding assembly 5. The first support assembly 1 includes a first horizontal plate 11 and two first vertical plates 12 connected to the first horizontal plate 11. The first horizontal plate 11 and the two first vertical plates 12 are in a gate shape. The pneumatic finger 2 is arranged on the first horizontal plate 11, and the two fingers of the pneumatic finger 2 are correspondingly connected to the two connecting plates 3. Multiple mounting positions are provided on the connecting plates 3. The two jaw assemblies 4 are correspondingly connected to the two connecting plates 3, and the jaw assembly 4 is alternatively arranged at the mounting positions on the connecting plates 3. The first guiding assembly 5 includes a first guide rail 51 and a first slider 52 slidably connected to the first guide rail 51. The first guide rail 51 is arranged on the connecting plate 3, and the first slider 52 is arranged on the first vertical plate 12.
[0028] During use, the pneumatic finger 2 performs a clamping action, driving the two connecting plates 3 and the jaw assemblies 4 on the connecting plates 3 to move towards each other, thereby clamping the product. When replacing the product, the jaw assembly 4 is manually adjusted and installed at the corresponding mounting position according to the product size. For example, when the product size is larger, the distance between the two jaw assemblies 4 is correspondingly increased; when the product size is smaller, the distance between the two jaw assemblies 4 is correspondingly decreased, so that it can be suitable for clamping products of different sizes and has good flexibility. The multiple mounting positions are arranged along the length direction of the connecting plate 3. By increasing the length of the connecting plate 3, the number of mounting positions is increased to be suitable for clamping larger-sized products. The first guiding assembly 5 can ensure that the connecting plate 3 and the jaw assemblies 4 move along a preset direction, improve the structural accuracy, and further improve the clamping accuracy.
[0029] The clamping mechanism further includes a first photoelectric sensor 6 and a first light-shielding sheet 7. The first photoelectric sensor 6 is arranged on the connecting plate 3, and the first light-shielding sheet 7 is arranged on the first vertical plate 12. The first photoelectric sensor ⑥ can detect the first light-shielding sheet 7. When the pneumatic finger 2 is used to clamp the product, the fingers drive the connecting plate 3 and the first photoelectric sensor 6 on the connecting plate 3 to move relative to the first vertical plate 12, that is, the first photoelectric sensor 6 moves relative to the first light-shielding sheet 7. When the first photoelectric sensor 6 detects the first light-shielding sheet 7, the first photoelectric sensor 6 feeds back a signal that the product has been clamped, and the next action can be performed, such as detecting or assembling the product.
[0030] The jaw assembly 4 and the connecting plate 3 are snap-connected, that is, multiple continuous mounting positions are formed on the connecting plate 3, which can realize continuous adjustment of the position of the jaw assembly 4 on the connecting plate 3 and be suitable for more size products. A scale 31 is provided on the side of the connecting plate 3, and precise adjustment is carried out according to the scale 31, improving the accuracy. In other embodiments, mounting holes are formed on the connecting plate 3 to form mounting positions, and the jaw assembly 4 is installed in the mounting holes.
[0031] The jaw assembly 4 includes a jaw body 41 and a buffer pad 42. The buffer pad 42 is arranged inside the jaw body 41, and the jaw body 41 is arranged on the connecting plate 3. The buffer pad 42 is made of an elastic material. The buffer pad 42 is in direct contact with the product to protect the product, prevent the jaw body 41 from directly contacting the product, and avoid damage to the product due to excessive clamping force or other reasons. Specifically, the buffer pad 42 can be a rubber pad or the like and can be adhered to the jaw body 41. The shape of the buffer pad 42 is set according to actual needs, such as being U-shaped.
[0032] The jaw assembly 4 further includes a proximity sensor 43. The proximity sensor 43 is arranged inside the jaw body 41 and above the buffer pad 42. The proximity sensor 43 is used to detect the product, to detect whether the product is clamped when the clamping mechanism clamps the product, or to detect whether the product falls off during the process of the clamping mechanism carrying the product to move. Exemplarily, the jaw assembly 4 further includes an L-shaped adapter 44. The jaw body 41 is connected to one side of the adapter 44, the other side of the adapter 44 is connected to the lower side of the connecting plate 3, and the upper side of the connecting plate 3 is connected to the finger. The buffer pad 42 is connected to the inside of the jaw body 41. Two connecting pieces 45 are connected to the inside of the adapter 44 and above the buffer pad 42, and the proximity sensor 43 is clamped between the two connecting pieces 45.
[0033] The clamping mechanism further includes a second support assembly 8, a limiting member 9 and an elastic member 10. The second support assembly 8 includes a second cross plate 81 and two second vertical plates 82 connected to the second cross plate 81. The second cross plate 81 and the two second vertical plates 82 are in a door shape. The elastic member 10 connects the second cross plate 81 and the first cross plate 11. The limiting member 9 is arranged between the second cross plate 81 and the first cross plate 11 and is connected to one of them. When the clamping mechanism picks up the product, buffering between the jaw assembly 4 and the product is achieved through the action of the elastic member 10 to prevent damage to the product. The limiting member 9 plays a role of starting and stopping limit. As the elastic member 10 is compressed, until the length of the compressed elastic member 10 is the same as the length of the limiting member 9, the elastic member 10 stops being compressed. The elastic member 10 can be a spring, and the limiting member 9 can be a limiting post or a limiting block. In this embodiment, two springs and two limiting posts are provided and symmetrically installed to make the force uniform. In this embodiment, the first cross plate 11 is located between the two second vertical plates 82, and the limiting member 9 is installed on the side of the first cross plate 11 facing the second cross plate 81.
[0034] The clamping mechanism further includes a second guiding component 20, which includes a second guide rail 201 and a second slider 202 slidably connected to the second guide rail 201. The second guide rail 201 is provided on the first vertical plate 12, and the second slider 202 is provided on the second vertical plate 82. This improves the relative movement accuracy of the first support component 1 and the second support component 8, enabling the pneumatic finger 2 and the jaw assembly 4 to move in a preset direction. Specifically, the second guide rail 201 is installed on the outer side of the first vertical plate 12, and the second slider 202 is installed on the inner side of the second vertical plate 82, with a compact structure.
[0035] The clamping mechanism further includes a second photoelectric sensor 30 and a second light-shielding sheet 40. The second photoelectric sensor 30 is provided on the second vertical plate 82, and the second light-shielding sheet 40 is provided on the first horizontal plate 11. The second photoelectric sensor 30 can detect the second light-shielding sheet 40. When the elastic member 10 deforms, the first support component 1 and the second support component 8 move relative to each other, and the second vertical plate 82 and the first horizontal plate 11 move relative to each other. The second photoelectric sensor 30 detects the second light-shielding sheet 40 and feeds back a signal, indicating that the jaw assembly 4 has been pressed against the product, and the next action such as clamping the product can be performed.
[0036] The clamping mechanism further includes a laser sensor 50 provided on the second horizontal plate 81. Alternatively, the laser sensor 50 can also be installed on the second vertical plate 82, or connected to other suitable positions through sheet metal parts, which is set according to the actual situation to detect the product. When the laser sensor 50 detects a product, it feeds back a signal, and then the clamping mechanism clamps the product.
[0037] During use, the clamping mechanism can be installed at the end of an actuator such as a manipulator. The working process of the clamping mechanism is as follows: The manipulator carries the clamping mechanism to the working station or the product is transported to the working station, and the laser sensor 50 detects whether there is a product and feeds back the detection signal. When there is a product, the manipulator carries the clamping mechanism to move downward to pick up the part, the elastic member 10 is compressed, and the first support component 1 and the second support component 8 move relative to each other, causing the jaw assembly 4 to closely adhere to the product. At this time, the second photoelectric sensor 30 feeds back a signal. The pneumatic finger 2 operates, and the jaw assembly 4 clamps the product. The first photoelectric sensor 6 feeds back a signal, indicating that the product has been clamped. The proximity sensor 43 detects whether the product is clamped. If not, it feeds back information to cause the alarm on the production line to emit an alarm signal for indication.
[0038] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.
Claims
1. A clamping mechanism, characterized in that, include: A first supporting assembly (1) comprises a first transverse plate (11) and two first vertical plates (12) connected to the first transverse plate (11), wherein the first transverse plate (11) and the two first vertical plates (12) are in a door shape; A pneumatic finger (2) is provided on the first transverse plate (11), and two clamping fingers of the pneumatic finger (2) are respectively connected to a connecting plate (3), and a plurality of mounting positions are provided on the connecting plate (3); Two clamping jaw assemblies (4) are correspondingly connected to the two connecting plates (3), and the clamping jaw assemblies (4) are selectively arranged at the installation position of the connecting plate (3); The first guide assembly (5) comprises a first guide rail (51) and a first slider (52) slidably connected to the first guide rail (51); the first guide rail (51) is provided on the connecting plate (3); and the first slider (52) is provided on the first vertical plate (12).
2. The clamping mechanism according to claim 1, wherein The clamping claw assembly (4) and the connecting plate (3) are clamped together.
3. The clamping mechanism according to claim 1, wherein A scale (31) is provided on the side of the connecting plate (3).
4. The clamping mechanism according to claim 1, wherein: The clamping jaw assembly (4) comprises a clamping jaw body (41) and a buffer pad (42), wherein the buffer pad (42) is arranged on the inner side of the clamping jaw body (41), and the clamping jaw body (41) is arranged on the connecting plate (3).
5. The clamping mechanism according to claim 4, characterized in that, The clamping jaw assembly (4) further includes a proximity sensor (43), which is arranged inside the clamping jaw body (41) and above the buffer pad (42).
6. The clamping mechanism according to claim 1, wherein, It also includes a first photoelectric sensor (6) and a first light shielding plate (7), wherein the first photoelectric sensor (6) is provided on the connecting plate (3), the first light shielding plate (7) is provided on the first vertical plate (12), and the first photoelectric sensor (6) is capable of detecting the first light shielding plate (7).
7. The clamping mechanism according to any one of claims 1-6, characterized in that, The invention also includes a second supporting assembly (8), a limiting member (9) and an elastic member (10), wherein the second supporting assembly (8) includes a second transverse plate (81) and two second vertical plates (82) connected to the second transverse plate (81), the second transverse plate (81) and the two second vertical plates (82) are in a door shape, the elastic member (10) connects the second transverse plate (81) and the first transverse plate (11), and the limiting member (9) is arranged between the second transverse plate (81) and the first transverse plate (11) and is connected to one of the two.
8. The clamping mechanism according to claim 7, characterized in that, The invention also includes a second guide assembly (20), wherein the second guide assembly (20) includes a second guide rail (201) and a second slider (202) slidably connected to the second guide rail (201), the second guide rail (201) is provided on the first vertical plate (12), and the second slider (202) is provided on the second vertical plate (82).
9. The clamping mechanism according to claim 7, wherein The invention also includes a second photoelectric sensor (30) and a second light shielding plate (40), wherein the second photoelectric sensor (30) is arranged on the second vertical plate (82), and the second light shielding plate (40) is arranged on the first horizontal plate (11), and the second photoelectric sensor (30) can detect the second light shielding plate (40).
10. The clamping mechanism according to claim 7, characterized in that, It also includes a laser sensor (50) arranged on the second transverse plate (81).