Light pneumatic clamping jaw

Abstract

The utility model discloses a light pneumatic clamping jaw and relates to the technical field of clamping jaws, the pneumatic clamping jaw comprises a base, a connecting seat, a support, a clamping jaw sliding table, a piston, a magnet mounting seat, a magnet, an inductive switch and a connecting block, when the pneumatic clamping jaw clamps a product, the base is ventilated, the piston is pushed upwards so as to drive the connecting block to rotate, the connecting block then pushes the clamping jaw sliding table, and the clamping jaw is clamped by the support. When the two clamping jaw sliding tables move, the magnet mounting base and the magnet are driven to move together, and the inductive switch induces magnetic field changes, so that it is judged that the pneumatic clamping jaw is closed, when the pneumatic clamping jaw loosens the product, the base is ventilated, the piston is pushed downwards, and therefore the connecting block is driven to rotate, and the product is clamped. When the pneumatic clamping jaw is opened, the connecting block pushes the clamping jaw sliding tables again, the two clamping jaw sliding tables are separated, the product is loosened, when the two clamping jaw sliding tables move, the magnet installation base and the magnet are driven to move together, the induction switch induces the magnetic field change again, and therefore it is judged that the pneumatic clamping jaw is opened.

Description

Technical Field

[0001] This utility model relates to the field of gripper technology, specifically a lightweight pneumatic gripper. Background Technology

[0002] With the diversification of market demand and the increasing intensity of competition, more and more scenarios requiring mini grippers have emerged in the market. Such small grippers are still in short supply in China. In order to make up for this shortage, provide more possibilities for production, and improve the efficiency of industrial production, the development of such lightweight gripper equipment is also crucial. To solve the above problems, we need a lightweight pneumatic gripper. Utility Model Content

[0003] The purpose of this invention is to provide a lightweight pneumatic gripper to solve the problems mentioned in the prior art.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] The pneumatic gripper includes a base, a connecting seat, a bracket, gripper slides, a piston, a magnet mounting base, a magnet, an inductive switch, and connecting blocks. The base and the connecting seat are fixedly connected by bolts. The upper end face of the base and the lower end face of the connecting seat are in contact. The piston is located inside the base and is slidably connected to the base. The top end of the piston passes through the lower end of the connecting seat. The piston and the connecting seat are slidably connected. The bracket is located on both sides of the connecting seat and is fixedly connected to the connecting seat by bolts. The inductive switch is inserted into the bracket. The two gripper slides are slidably connected to the upper ends of the connecting seat. The magnet mounting base and one side of a gripper slide are fixedly connected by bolts. The magnet and the magnet mounting base are fixedly connected. The magnet mounting base and the inductive switch are located on the same side. The two connecting blocks are located inside the connecting seat and are symmetrical about the central axis of the piston. The two connecting blocks are rotatably connected to the connecting seat. The two connecting blocks are respectively inserted into both sides of the piston and into the bottom ends of the two gripper slides.

[0006] When the pneumatic gripper picks up a product, the base is vented, pushing the piston upward, which in turn rotates the connecting block. The connecting block then pushes the gripper slides, causing the two gripper slides to move closer together, thus closing and gripping the product. As the two gripper slides move, the magnet mounting base and the magnet move together. The inductive switch detects the change in the magnetic field, thus determining that the pneumatic gripper has closed. When the pneumatic gripper releases the product, the base is vented, pushing the piston downward, which in turn rotates the connecting block. The connecting block then pushes the gripper slides, causing the two gripper slides to move away from each other, thus releasing the product. As the two gripper slides move, the magnet mounting base and the magnet move together. The inductive switch detects the change in the magnetic field again, thus determining that the pneumatic gripper has opened.

[0007] Furthermore, the base has an open air inlet and a closed air inlet on both sides, with the open air inlet located below the closed air inlet.

[0008] Furthermore, the connecting seat is provided with two sliding grooves, and two sliding rods are respectively connected to the two sliding grooves of the connecting seat. The two ends of the two sliding rods are clamped and fixed in the two sliding grooves of the connecting seat by the bracket. The two sliding grooves are semi-cylindrical, and the inner diameter of the two sliding grooves is equal to the outer diameter of the two sliding rods. The two gripper slides are slidably connected to the two sliding rods.

[0009] Furthermore, the bracket is divided into a left bracket and a right bracket. The left bracket and the left end face of the connecting seat are fixedly connected by bolts. One end of each of the two sliding rods is inserted into the left bracket. The right bracket and the right end face of the connecting seat are fixedly connected by bolts. One end of each of the two sliding rods is inserted into the right bracket. The lower end of the right bracket is provided with a slot, and the induction switch is inserted into the slot.

[0010] The slide bar is snapped into the slide groove at the upper end of the connecting seat via the left and right brackets, making disassembly and assembly more convenient and saving time. The induction switch is directly inserted into the slot of the right bracket, making disassembly and assembly more convenient and quick. At the same time, the position of the induction switch can be adjusted to adjust the distance between it and the magnet, adapting to the determination of the pneumatic gripper closing and opening when the pneumatic gripper picks up objects of different sizes.

[0011] Furthermore, the lower end face of the piston is provided with two annular protrusions. The outer diameter of the two annular protrusions at the lower end of the piston is equal to the inner diameter of the base. The two annular protrusions at the lower end of the piston are located between the open air inlet and the closed air inlet of the base. When the piston moves up and down, the two annular protrusions at the lower end of the piston are always located between the open air inlet and the closed air inlet of the base. A sealing ring is provided between the two annular protrusions at the lower end of the piston.

[0012] The two annular protruding sections at the lower end of the piston separate the open air inlet and the closed air inlet of the base. When air is introduced into the open air inlet, the piston is pushed upward, thereby moving the gripper slide and opening the pneumatic gripper. When air is introduced into the closed air inlet, the piston is pushed downward, thereby moving the gripper slide and allowing the pneumatic gripper to pick up the product. At the same time, the sealing ring can better separate the open air inlet and the closed air inlet, preventing gas from flowing between the open air inlet and the closed air inlet within the base.

[0013] Furthermore, a chamber is formed between the piston and the connecting seat, and a sealing ring is also provided in the chamber between the piston and the connecting seat.

[0014] By placing a sealing ring in the chamber, the base and the connecting seat can be isolated, preventing gas exchange between the two annular protrusions at the lower end of the piston and the chamber formed by the connecting seat and the base. This ensures that the gas entering from the closed air inlet can push the piston downward, thus closing the pneumatic gripper.

[0015] Furthermore, the connecting block is A-shaped, with its top end rotatably connected to the connecting seat, one bottom foot of the connecting block inserted into the piston, and the other bottom foot of the connecting block inserted into the gripper slide.

[0016] The A-shaped connecting block can better realize the connection relationship required by this utility model, ensuring the normal operation of the pneumatic clamp while saving materials and making disassembly and assembly more convenient.

[0017] Furthermore, a cover is fixedly connected to the upper end of the connecting seat. The cover is located between the two gripper slides, and the area of ​​the cover is larger than the area of ​​the gap between the bottom ends of the two gripper slides.

[0018] The cover prevents dust from entering the connecting seat through the gap between the two gripper slides, which would affect the smoothness of the connecting block and piston movement.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. This utility model can realize the gripping operation of various small and lightweight products.

[0021] 2. This utility model is easier and faster to install.

[0022] 3. The position of the induction switch can be adjusted to adjust the distance between it and the magnet, adapting to the determination of the pneumatic gripper closing and opening when the pneumatic gripper picks up objects of different sizes. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall external structure of a lightweight pneumatic gripper according to the present invention;

[0024] Figure 2 This is a cross-sectional structural diagram of a lightweight pneumatic gripper according to the present invention;

[0025] Figure 3 This is a schematic diagram of the connection structure of the piston, connecting block and gripper slide of a lightweight pneumatic gripper according to this utility model.

[0026] Figure 4 This is a schematic diagram of the connection seat, bracket, and slide bar connection of a lightweight pneumatic gripper according to this utility model;

[0027] Figure 5 This is a schematic diagram of the magnet mounting base and magnet structure of a lightweight pneumatic gripper according to this utility model;

[0028] Figure 6 This is a schematic diagram of the base structure of a lightweight pneumatic gripper according to the present invention;

[0029] Figure 7 This is a schematic diagram of the connecting block structure of a lightweight pneumatic gripper according to this utility model.

[0030] In the diagram: 1. Base; 2. Connecting seat; 3. Bracket; 4. Gripper slide; 5. Piston; 6. Magnet mounting seat; 7. Magnet; 8. Induction switch; 9. Connecting block; 11. Open air inlet; 12. Close air inlet; 21. Slide rod; 22. Cover; 31. Left bracket; 32. Right bracket; 51. Sealing ring. Detailed Implementation

[0031] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] Example: Figures 1-7 As shown, this utility model provides a lightweight pneumatic gripper technical solution:

[0033] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the pneumatic gripper includes a base 1, a connecting seat 2, a bracket 3, a gripper slide 4, a piston 5, a magnet mounting base 6, a magnet 7, an inductive switch 8, and a connecting block 9. The base 1 and the connecting seat 2 are fixedly connected by bolts. The upper end face of the base 1 contacts the lower end face of the connecting seat 2. The piston 5 is located inside the base 1 and is slidably connected to the base 1. The top end of the piston 5 passes through the lower end of the connecting seat 2. The bracket 3 is located on both sides of the connecting seat 2 and is fixedly connected to the connecting seat 2 by bolts. The inductive switch 8... The 8 is inserted into the bracket 3. The two gripper slides 4 and the upper end of the connecting seat 2 are slidably connected. The magnet mounting seat 6 and one side of the gripper slide 4 are fixedly connected by bolts. The magnet 7 and the magnet mounting seat 6 are fixedly connected. The magnet mounting seat 6 and the induction switch 8 are located on the same side. The two connecting blocks 9 are located inside the connecting seat 2. The two connecting blocks 9 are symmetrical about the central axis of the piston 5. The two connecting blocks 9 and the connecting seat 2 are rotatably connected. The two connecting blocks 9 are respectively inserted into both sides of the piston 5. The two connecting blocks 9 are respectively inserted into the bottom end of the two gripper slides 4.

[0034] When the pneumatic gripper picks up a product, the base 1 is vented, pushing the piston 5 upward, which in turn drives the connecting block 9 to rotate. The connecting block 9 then pushes the gripper slides 4, causing the two gripper slides 4 to move closer to each other, thus closing and gripping the product. As the two gripper slides 4 move, the magnet mounting base 6 and magnet 7 also move together. The induction switch 8 senses the change in the magnetic field, thus determining that the pneumatic gripper has closed. When the pneumatic gripper releases the product, the base 1 is vented, pushing the piston 5 downward, which in turn drives the connecting block 9 to rotate. The connecting block 9 then pushes the gripper slides 4, causing the two gripper slides 4 to move away from each other, thus releasing the product. As the two gripper slides 4 move, the magnet mounting base 6 and magnet 7 also move together. The induction switch 8 senses the change in the magnetic field again, thus determining that the pneumatic gripper has opened.

[0035] like Figure 6 As shown, the base 1 has an open air inlet 11 and a closed air inlet 12 on both sides, with the open air inlet 11 located below the closed air inlet 12.

[0036] like Figure 4 As shown, the connecting seat 2 is provided with two sliding grooves, and two sliding rods 21 are respectively connected to the two sliding grooves of the connecting seat 2. The two ends of the two sliding rods 21 are clamped and fixed in the two sliding grooves of the connecting seat 2 by the bracket 3. The two sliding grooves are semi-cylindrical, and the inner diameter of the two sliding grooves is equal to the outer diameter of the two sliding rods 21. The two gripper slides 4 are slidably connected to the two sliding rods 21.

[0037] like Figure 1 and Figure 4 As shown, the bracket 3 is divided into a left bracket 31 and a right bracket 32. The left bracket 31 and the left end face of the connecting seat 2 are fixedly connected by bolts. One end of each of the two sliding rods 21 is inserted into the left bracket 31. The right bracket 32 ​​and the right end face of the connecting seat 2 are fixedly connected by bolts. One end of each of the two sliding rods 21 is inserted into the right bracket 32. The lower end of the right bracket 32 ​​is provided with a slot, and the induction switch 8 is inserted into the slot.

[0038] The slide bar 21 is snapped into the slide groove at the upper end of the connecting seat 2 through the left bracket 31 and the right bracket 32, making disassembly and assembly more convenient and saving time. The induction switch 8 is directly inserted into the slot of the right bracket 32, making disassembly and assembly more convenient and quick. At the same time, the position of the induction switch 8 can be adjusted, thereby adjusting the distance between it and the magnet 7, adapting to the determination of the pneumatic gripper closing and opening when the pneumatic gripper picks up objects of different sizes.

[0039] like Figure 2 and Figure 3As shown, the lower end face of the piston 5 is provided with two annular protrusions. The outer diameter of the two annular protrusions at the lower end of the piston 5 is equal to the inner diameter of the base 1. The two annular protrusions at the lower end of the piston 5 are located between the open air inlet 11 and the closed air inlet 12 of the base 1. When the piston 5 moves up and down, the two annular protrusions at the lower end of the piston 5 are always located between the open air inlet 11 and the closed air inlet 12 of the base 1. A sealing ring 51 is provided between the two annular protrusions at the lower end of the piston 5.

[0040] The two annular protruding sections at the lower end of the piston 5 separate the open air inlet 11 and the closed air inlet 12 of the base 1. When air is supplied to the open air inlet 11, the piston 5 is pushed upward, thereby driving the movement of the gripper slide 4 and opening the pneumatic gripper. When air is supplied to the closed air inlet 12, the piston 5 is pushed downward, thereby driving the movement of the gripper slide 4 and enabling the pneumatic gripper to pick up the product. At the same time, the sealing ring 51 can better separate the open air inlet 11 and the closed air inlet 12, preventing gas flow between the open air inlet 11 and the closed air inlet 12 within the base 1.

[0041] like Figure 2 As shown, a chamber is formed between the piston 5 and the connecting seat 2, and a sealing ring 51 is also provided in the chamber between the piston 5 and the connecting seat 2.

[0042] By placing a sealing ring 51 in the chamber, the base 1 and the connecting seat 2 can be isolated, so that the chamber formed by the two annular protruding sections at the lower end of the piston 5, the connecting seat 2, and the base 1 does not exchange gas with the outside world. This ensures that the gas that can enter from the closed air inlet 12 can push the piston 5 downward, thereby achieving the closure of the pneumatic gripper.

[0043] like Figure 7 As shown, the connecting block 9 is A-shaped. The top of the connecting block 9 is rotatably connected to the connecting seat 2. One bottom foot of the connecting block 9 is inserted into the piston 5, and the other bottom foot of the connecting block 9 is inserted into the gripper slide 4.

[0044] The A-shaped connecting block 9 can better realize the connection relationship required by this utility model, ensuring the normal operation of the pneumatic clamp while saving materials and making disassembly and assembly more convenient.

[0045] As shown in the figure, a cover 22 is also fixedly connected to the upper end of the connecting seat 2. The cover 22 is located between the two gripper slides 4, and the area of ​​the cover 22 is larger than the area of ​​the gap between the bottom ends of the two gripper slides 4.

[0046] The cover 22 can prevent dust from entering the interior of the connecting seat 2 through the gap between the two gripper slides 4, which would affect the smoothness of the movement of the connecting block 9 and the piston 5.

[0047] The working principle of this utility model is as follows: When the pneumatic gripper picks up a product, the base 1 is vented, pushing the piston 5 upward, which in turn drives the connecting block 9 to rotate. The connecting block 9 then pushes the gripper slide 4, causing the two gripper slides 4 to move closer to each other, thus closing and gripping the product. When the two gripper slides 4 move, the magnet mounting base 6 and magnet 7 move together with them. The induction switch 8 senses the change in the magnetic field, thus determining that the pneumatic gripper has closed. When the pneumatic gripper releases the product, the base 1 is vented, pushing the piston 5 downward, which in turn drives the connecting block 9 to rotate. The connecting block 9 then pushes the gripper slide 4, causing the two gripper slides 4 to move away from each other, thus releasing the product. When the two gripper slides 4 move, the magnet mounting base 6 and magnet 7 move together with them. The induction switch 8 senses the change in the magnetic field again, thus determining that the pneumatic gripper has opened.

[0048] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lightweight pneumatic gripper, characterized in that: The pneumatic gripper includes a base (1), a connecting seat (2), a bracket (3), a gripper slide (4), a piston (5), a magnet mounting seat (6), a magnet (7), an inductive switch (8), and a connecting block (9). The base (1) and the connecting seat (2) are fixedly connected by bolts. The upper end face of the base (1) is in contact with the lower end face of the connecting seat (2). The piston (5) is located inside the base (1). The piston (5) and the base (1) are slidably connected. The top end of the piston (5) passes through the lower end of the connecting seat (2). The piston (5) and the connecting seat (2) are slidably connected. The bracket (3) is located on both sides of the connecting seat (2). The bracket (3) and the connecting seat (2) are fixedly connected by bolts. The inductive switch (8) is inserted into the bracket (3), the two gripper slides (4) and the upper end of the connecting seat (2) are slidably connected, the magnet mounting seat (6) and one side of the gripper slide (4) are fixedly connected by bolts, the magnet (7) and the magnet mounting seat (6) are fixedly connected, the magnet mounting seat (6) and the inductive switch (8) are located on the same side, the two connecting blocks (9) are located inside the connecting seat (2), the two connecting blocks (9) are symmetrical about the central axis of the piston (5), the two connecting blocks (9) and the connecting seat (2) are rotatably connected, the two connecting blocks (9) are respectively inserted into both sides of the piston (5), and the two connecting blocks (9) are respectively inserted into the bottom end of the two gripper slides (4).

2. The lightweight pneumatic gripper according to claim 1, characterized in that: The base (1) is provided with an open air inlet (11) and a closed air inlet (12) on both sides, with the open air inlet (11) located below the closed air inlet (12).

3. A lightweight pneumatic gripper according to claim 1, characterized in that: The connecting seat (2) is provided with two sliding grooves, and two sliding rods (21) are connected to the two sliding grooves of the connecting seat (2) respectively. The two ends of the two sliding rods (21) are clamped and fixed in the two sliding grooves of the connecting seat (2) by the bracket (3). The two sliding grooves are semi-cylindrical, and the inner diameter of the two sliding grooves is equal to the outer diameter of the two sliding rods (21). The two gripper slides (4) are slidably connected to the two sliding rods (21).

4. A lightweight pneumatic gripper according to claim 3, characterized in that: The bracket (3) is divided into a left bracket (31) and a right bracket (32). The left bracket (31) and the left end face of the connecting seat (2) are fixedly connected by bolts. One end of each of the two sliding rods (21) is inserted into the left bracket (31). The right bracket (32) and the right end face of the connecting seat (2) are fixedly connected by bolts. One end of each of the two sliding rods (21) is inserted into the right bracket (32). The lower end of the right bracket (32) is provided with a slot, and the induction switch (8) is inserted into the slot.

5. A lightweight pneumatic gripper according to claim 1, characterized in that: The piston (5) has two annular protrusions on its lower end face. The outer diameter of the two annular protrusions on the lower end of the piston (5) is equal to the inner diameter of the base (1). The two annular protrusions on the lower end of the piston (5) are located between the open air inlet (11) and the closed air inlet (12) of the base (1). When the piston (5) moves up and down, the two annular protrusions on the lower end of the piston (5) are always located between the open air inlet (11) and the closed air inlet (12) of the base (1). A sealing ring (51) is provided between the two annular protrusions on the lower end of the piston (5).

6. A lightweight pneumatic gripper according to claim 5, characterized in that: The piston (5) and the connecting seat (2) form a chamber, and a sealing ring (51) is also provided in the chamber between the piston (5) and the connecting seat (2).

7. A lightweight pneumatic gripper according to claim 1, characterized in that: The connecting block (9) is A-shaped. The top of the connecting block (9) is rotatably connected to the connecting seat (2). One bottom foot of the connecting block (9) is inserted into the piston (5), and the other bottom foot of the connecting block (9) is inserted into the gripper slide (4).

8. A lightweight pneumatic gripper according to claim 7, characterized in that: The upper end of the connecting seat (2) is also fixedly connected to a cover (22), which is located between two gripper slides (4). The area of ​​the cover (22) is larger than the area of ​​the gap between the bottom ends of the two gripper slides (4).

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