Multi-station pneumatic clamp

Abstract

The utility model belongs to the technical field of clamp, concretely relates to a multi -position pneumatic clamp, including clamp base, the clamp base is rectangle, be equipped with a plurality of connecting mechanisms in the clamp base four corner positions, be provided with the lifting seat body that can slide to connecting mechanism on connecting mechanism, lifting seat body both ends are equipped with the jacking mechanism that drives lifting seat body to lift respectively, be equipped with a plurality of locking mechanisms between the clamp base and lifting seat body, every at least two locking mechanisms are a group, in the process that lifting seat body moves to clamp base, locking mechanism is extruded by lifting seat body, produces deformation, every at least two locking mechanisms mutually cooperate and clamp and fix the material to be processed. Through the setting of above -mentioned component, not only can compatible cylindrical and cuboid material and low cost, improve the flexibility of using clamp simultaneously.

Description

Technical Field

[0001] This utility model belongs to the field of clamping technology, specifically relating to a multi-station pneumatic clamp. Background Technology

[0002] In industrial production processes such as machining, clamps are essential components used to hold materials in place. Currently, most multi-station pneumatic clamps on the market employ a design driven by multiple independent cylinders. This design not only complicates the overall structure of the clamp but also significantly increases manufacturing costs due to the use of multiple cylinders. Furthermore, existing multi-station pneumatic clamps rely on external air compressors to provide pressure to the cylinders to achieve material clamping, which limits the clamps' application scenarios and reduces their flexibility and convenience.

[0003] Furthermore, the materials commonly processed in machining are mostly cuboids or cylinders. In the existing technology, it is difficult for existing fixtures to be compatible with both cylindrical and cuboid materials at the same time. It is often necessary to design fixtures with different structures separately. At the same time, the fixtures need to be changed frequently during production, which greatly affects production efficiency and increases production costs. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-station pneumatic clamp, which aims to solve the technical problems of existing multi-station pneumatic clamps being incompatible with cylindrical and cuboid materials, having high costs, and lacking flexibility.

[0005] To achieve the above objectives, this utility model provides a multi-station pneumatic clamp, including a clamp base with multiple limiting grooves and multiple connecting mechanisms. Each connecting mechanism includes a spring and a lifting seat that can slide relative to the connecting mechanism. The lifting seat is located below the spring and has multiple material holes corresponding to the limiting grooves. A lifting mechanism 40 is connected to the lifting seat to drive it along the connecting mechanisms. Multiple locking mechanisms are provided between the clamp base and the lifting seat, each including a connecting plate. The connecting plate is fixed to the side of the fixture base adjacent to the lifting seat. The two ends of the connecting plate are respectively provided with springs that are perpendicular to the connecting plate. The top of the two springs are respectively connected to clamping blocks. The clamping blocks are right-angled triangles, and the hypotenuses of the two clamping blocks are adjacent. A pressure block is provided between the two clamping blocks. The top surface of the pressure block is fixedly connected to the lifting seat. The pressure block is a semi-circular body with an arc-shaped edge between the two clamping blocks. At least two locking mechanisms form a group. When the lifting seat moves towards the fixture base, the lifting seat squeezes the locking mechanism, and the locking mechanism deforms. At least two locking mechanisms cooperate with each other to clamp and fix the material to be processed.

[0006] Preferably, the limiting groove is a geometric shape composed of a circle and a rectangle, with the center of the circle coinciding with the center of the rectangle, and the side length of the rectangle being smaller than the diameter of the circle. The shape of the limiting groove is designed so that both circular and cuboid materials to be processed can be inserted into the limiting groove.

[0007] Preferably, the connecting mechanism further includes a connecting rod, which is a smooth round rod with threads at both ends; a limiting block is provided at the top of the other end of the connecting rod, and the limiting block is a nut that mates with the thread at that end, and the limiting block is fixed to the connecting rod.

[0008] Preferably, the spring is located below the limiting block and sleeved on the connecting rod. The spring is a high-strength spring, with one end pressing against the limiting block and the other end pressing against the lifting seat.

[0009] Preferably, the lifting mechanism is a single-acting cylinder, the cylinder body is fixedly mounted on the bottom of the clamp base, the cylinder extension rod passes through the clamp base and is connected to the lifting seat body, the cylinder drives the extension rod to move away from the clamp base along the direction of the connecting rod, thereby driving the lifting seat body to move away from the clamp base.

[0010] Preferably, the locking mechanism is located around the limiting groove. One right-angled side of the clamping block in the locking mechanism is connected to the spring and is parallel to the clamp base, while the other right-angled side is perpendicular to the clamp base. The right-angled side of any clamping block perpendicular to the clamp base is tangent to the edge of the limiting groove in the vertical direction, so that when the material is inserted into the limiting groove, the material is tangent to the clamping block. At least two symmetrically arranged locking mechanisms are provided around the limiting groove. When the lifting seat moves the pressure block to press against the two clamping blocks, the two clamping blocks adjacent to the material in the two locking mechanisms clamp and fix the material under the pressure of the two pressure blocks.

[0011] Preferably, the limiting groove is provided with four locking mechanisms, which are evenly distributed around the limiting groove.

[0012] Preferably, the clamp base is rectangular, and the connecting mechanism is located at the four corners of the clamp base; the clamp base has through holes at both ends for the lifting mechanism to pass through, and mounting holes for mounting the connecting mechanism are located at the four corners of the clamp base, with threads formed in the mounting holes.

[0013] Preferably, the limiting groove is provided with a drainage hole coaxial with the limiting groove, and the drainage hole is provided through the fixture base.

[0014] Preferably, the lifting seat has movable holes at its four corners corresponding to the mounting holes, and the lifting seat is fitted into the connecting rod through the movable holes, allowing the lifting seat to slide along the connecting rod; the lifting seat has multiple material holes corresponding to the limiting grooves, the material holes are set through the lifting seat, and the shape of the material holes is consistent with the shape of the limiting grooves.

[0015] The multi-station pneumatic clamp provided in this embodiment of the utility model has at least one of the following technical effects:

[0016] This utility model discloses a multi-station pneumatic clamp that, with the coordinated design of the limiting groove and the material hole shape, can adapt to round and rectangular materials. Whether the material is cylindrical or cuboid, it can be easily placed and positioned through the corresponding setting of the limiting groove and the material hole, achieving compatibility with materials of different shapes. It eliminates the need to design clamps for different shapes of materials, effectively improving production efficiency and reducing production costs.

[0017] This utility model discloses a multi-station pneumatic clamp that uses a single-acting cylinder as the lifting mechanism to drive the lifting seat. At the same time, with the assistance of the connecting rod, the movement direction of the lifting seat is restricted. Only two single-acting cylinders are needed. Compared with most multi-station pneumatic clamps on the market that use multiple independent cylinders, this greatly reduces the manufacturing cost of the clamp and improves the cost-effectiveness of the product while ensuring the function of the clamp.

[0018] This utility model discloses a multi-station pneumatic clamp. With the cooperation of springs and locking mechanisms, the clamp can be fixed in different processing equipment after clamping the material. Even if the processing equipment is not connected to an air compressor, the locking mechanism can still clamp the material by relying on the elastic force of the spring, thus eliminating the dependence on an external air compressor. This greatly improves the flexibility and convenience of the clamp and expands the application scenarios of the clamp.

[0019] This utility model discloses a multi-station pneumatic clamp with a clever design and coordination of multiple locking mechanisms. This allows the clamping blocks to reliably clamp and release materials during the movement of the lifting seat, further enhancing the firmness of the clamping and ensuring that the materials will not shift during processing, thus guaranteeing processing quality. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A perspective view of a multi-station pneumatic clamp provided for an embodiment of this utility model.

[0022] Figure 2 This is a perspective view of the fixture base in a multi-station pneumatic fixture provided for an embodiment of the present utility model.

[0023] Figure 3 An exploded view of a multi-station pneumatic clamp provided for an embodiment of this utility model.

[0024] Figure 4 This is a perspective view of the lifting seat in a multi-station pneumatic clamp provided for an embodiment of the present utility model.

[0025] Figure 5 A perspective view of a locking mechanism in a multi-station pneumatic clamp provided for an embodiment of this utility model.

[0026] Figure 6 A perspective view of a multi-station pneumatic clamp provided for an embodiment of this utility model.

[0027] The following are the labeling elements in the figure:

[0028] 10—Clamp base; 11—Limiting groove; 12—Drain hole; 13—Through hole; 14—Mounting hole

[0029] 20—Connecting Mechanism 21—Connecting Rod 22—Spring 23—Limit Block 30—Lifting Seat

[0030] 31—Moving hole; 32—Material hole; 40—Lifting mechanism; 50—Locking mechanism; 51—Connecting plate; 52—Spring; 53—Clamping block; 54—Pressure block. Detailed Implementation

[0031] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0032] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0035] In one embodiment of this utility model, such as Figure 1 As shown, a multi-station pneumatic clamp is provided, including a clamp base 10, which is rectangular. Multiple connecting mechanisms 20 are provided at the four corners of the clamp base 10. Each connecting mechanism 20 has a sliding lifting seat 30 that can slide relative to it. Lifting mechanisms 40 are provided at both ends of the lifting seat 30 to drive its lifting motion. Multiple locking mechanisms 50 are provided between the clamp base 10 and the lifting seat 30, with at least two locking mechanisms 50 forming a group. During the movement of the lifting seat 30 towards the clamp base 10, the locking mechanisms 50 are compressed by the lifting seat 30, causing deformation. At least two locking mechanisms 50 cooperate to clamp and fix the material to be processed.

[0036] like Figure 2 As shown, the fixture base 10 is provided with a plurality of limiting grooves 11. The limiting grooves 11 are geometric shapes composed of a circle and a rectangle. The center of the circle coincides with the center of the rectangle. The side length of the rectangle is smaller than the diameter of the circle. The shape of the limiting grooves 11 allows both circular and cuboid materials to be processed to be inserted into the limiting grooves 11.

[0037] The limiting groove 11 is provided with a drain hole 12 coaxial with the limiting groove 11. The drain hole 12 is provided through the fixture base 10. The drain hole 12 allows the cutting fluid that enters the fixture base 10 during the machining process to be discharged from the fixture base 10, preventing the material to be processed from not being fully inserted into the limiting groove 11.

[0038] The clamp base 10 has through holes 13 at both ends for the lifting mechanism 40 to pass through, and mounting holes 14 at the four corners for mounting the connecting mechanism 20, with threads formed in the mounting holes 14.

[0039] like Figure 3 As shown, the connecting mechanism 20 includes a connecting rod 21, which is a smooth round rod. Both ends of the connecting rod 21 are threaded. One end of the thread engages with the mounting hole 14 to fix the connecting rod 21 in the clamp base 10. The other end of the connecting rod 21 is provided with a limiting block 23. The limiting block 23 is a nut that engages with the thread at that end. The limiting block 23 is fixed on the connecting rod 21. Below the limiting block 23, there is a spring 22 sleeved on the connecting rod 21. The spring 22 is a high-strength spring. One end of the spring 22 presses against the limiting block 23, and the other end presses against the lifting seat 30. The spring 22 pushes the lifting seat 30 toward the clamp base 10.

[0040] like Figure 3 , 4 As shown, the lifting seat 30 has a structure similar to that of the clamp base 10. The lifting seat 30 has movable holes 31 at its four corners that correspond to the mounting holes 14. The lifting seat 30 is fitted into the connecting rod 21 through the movable holes 31, and the lifting seat 30 can slide along the connecting rod 21. The lifting seat 30 is located below the spring 22.

[0041] The lifting seat 30 is provided with a plurality of material holes 32 corresponding to the limiting groove 11. The material holes 32 are set through the lifting seat 30. The shape of the material holes 32 is consistent with the shape of the limiting groove 11, so that both round and rectangular materials can be placed in the material holes 32.

[0042] The lifting mechanism 40 is located on the side of the lifting seat 30 adjacent to the clamp base 10. Lifting mechanisms 40 are respectively provided at both ends of the lifting seat 30. The lifting mechanism 40 can be a single-acting cylinder. The cylinder body is fixedly located at the bottom of the clamp base 10. The cylinder telescopic rod passes through the through hole 13 and is connected to the lifting seat 30. The cylinder drives the telescopic rod to move upward along the direction of the connecting rod 21, thereby driving the lifting seat 30 to move upward along the connecting rod 21.

[0043] like Figure 5 As shown, the locking mechanism 50 includes a connecting plate 51, which is fixed to the side of the clamp base 10 adjacent to the lifting seat 30. The two ends of the connecting plate 51 are respectively provided with spring plates 52 that are perpendicular to the connecting plate 51. The top ends of the two spring plates 52 are respectively connected to clamping blocks 53. The clamping blocks 53 are right-angled triangles. The hypotenuses of the two clamping blocks 53 are adjacent to each other. One right-angled side is connected to the spring plate 52 and is parallel to the clamp base 10. The other right-angled side is perpendicular to the clamp base 10.

[0044] A pressure block 54 is provided between the two clamping blocks 53. The top surface of the pressure block 54 is fixedly connected to the lifting seat 30. The pressure block 54 is a semi-circular body with an arc-shaped edge between the two clamping blocks 53. Under the elastic force of the spring 22, the lifting seat 30 moves towards the clamp base 10. The lifting seat 30 drives the pressure block 54 to press against the two clamping blocks 53. The two clamping blocks 53 move away from each other, and the spring 53 deforms. When the lifting seat 30 moves along the connecting rod 21 under the lifting action of the lifting mechanism 40 and moves away from the clamp base 10, the pressure block 54 moves away from the two clamping blocks 53, and the spring 52 drives the clamping blocks 53 to reset.

[0045] The locking mechanism 50 is located around the limiting groove 11. One of the clamping blocks 53 is perpendicular to the right-angled side of the clamp base 10 and is tangent to the edge of the limiting groove 11 in the vertical direction, so that when the material is inserted into the limiting groove 11, the material is tangent to the clamping block 53. At least two symmetrically arranged locking mechanisms 50 are provided around the limiting groove 11. When the lifting seat 10 drives the pressure block 54 to press against the two clamping blocks 53, the two locking mechanisms 50 and the two clamping blocks 53 adjacent to the material clamp and fix the material under the pressure of the two pressure blocks 54.

[0046] In this embodiment, four locking mechanisms 50 are provided around the limiting groove 11. The four locking mechanisms 50 are evenly distributed around the limiting groove 11 to achieve a firm fixation of round or rectangular materials.

[0047] The working principle of this utility model is as follows: A multi-station pneumatic clamp is provided. One end of the connecting rod 21 is fixedly connected to the clamp base 10. The cylinder is fixed to the bottom surface of the clamp base 10, and the cylinder extension rod passes through the through hole 13. The connecting plate 51 in the locking mechanism 50 is evenly fixed on the side of the clamp base 10 adjacent to the lifting seat 30 and located outside the limiting groove 11. The pressure block 54 is evenly fixed on the side of the lifting seat 30 adjacent to the clamp base 10 and located outside the material hole 32. The lifting seat 30 is sleeved on the connecting rod 21, and the pressure block 54 is located between the two opposing clamping blocks 53. The spring 22 is sleeved on the connecting rod 21 and located above the lifting seat 30. The limiting block 23 is fixed to the top of the connecting rod 21. In use, the cylinder lifts the lifting seat 30, which moves along the connecting rod 21. The spring 22 is compressed, and the spring plate 52 remains undeformed. After the round material passes through the material hole 32 and is inserted into the limiting groove 11, the cylinder disconnects the air pressure supply. The spring 22 applies pressure to the lifting seat 30, which in turn causes the pressure block 54 to apply pressure to the clamping block 53. The spring plate 52 deforms, and the right-angled edge of the clamping block 53 perpendicular to the fixture base 10 contacts the material. Multiple locking mechanisms 50 work together to clamp the material. When the round material is replaced with a rectangular material, the fixture state is as follows: Figure 6 As shown.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-station pneumatic clamp, characterized in that: The fixture includes a fixture base (10), which has multiple limiting grooves (11) and multiple connecting mechanisms (20). Each connecting mechanism (20) has a spring (22) and a lifting seat (30) that can slide relative to the connecting mechanism (20). The lifting seat (30) is located below the spring (22) and has multiple material holes (32) corresponding to the limiting grooves (11). A lifting mechanism (40) that drives the lifting seat (30) to move along the connecting mechanism (20) is connected to the lifting seat (30). Multiple locking mechanisms (50) are provided between the fixture base (10) and the lifting seat (30). Each locking mechanism (50) includes a connecting plate (51) that is fixed to the fixture base. (10) On the side adjacent to the lifting seat (30), the two ends of the connecting plate (51) are respectively provided with springs (52) perpendicular to the connecting plate (51). The top of the two springs (52) are respectively connected to clamps (53). The clamps (53) are right triangles. The two clamps (53) are arranged with their hypotenuses adjacent to each other. A pressure block (54) is provided between the two clamps (53). The top surface of the pressure block (54) is fixedly connected to the lifting seat (30). The pressure block (54) is a semi-circular body with its arc edge between the two clamps (53). Each set of at least two locking mechanisms (50) is a group. When the lifting seat (30) moves toward the clamp base (10), the lifting seat (30) squeezes the locking mechanism (50), and the locking mechanism (50) deforms. Each set of at least two locking mechanisms (50) cooperates with each other to clamp and fix the material to be processed.

2. The multi-station pneumatic clamp according to claim 1, characterized in that: The limiting groove (11) is a geometric shape composed of a combination of circles and rectangles.

3. A multi-station pneumatic clamp according to claim 1, characterized in that: The connecting mechanism (20) also includes a connecting rod (21), which is a smooth round rod with threads at both ends. A limiting block (23) is provided at the top of the other end of the connecting rod (21). The limiting block (23) is a nut that matches the thread at that end and is fixed to the connecting rod (21).

4. A multi-station pneumatic clamp according to claim 1 or 3, characterized in that: The spring (22) is located below the limiting block (23) and sleeved on the connecting rod (21). The spring (22) is a strong spring. One end of the spring (22) presses against the limiting block (23), and the other end presses against the lifting seat (30).

5. A multi-station pneumatic clamp according to claim 1, characterized in that: The lifting mechanism (40) is a single-acting cylinder. The cylinder body is fixed at the bottom of the clamp base (10). The cylinder extension rod passes through the clamp base (10) and is connected to the lifting seat (30). The cylinder drives the extension rod to move away from the clamp base (10) along the direction of the connecting rod (21), thereby driving the lifting seat (30) to move away from the clamp base (10).

6. A multi-station pneumatic clamp according to claim 1, characterized in that: The locking mechanism (50) is located around the limiting groove (11). One right-angled side of the clamping block (53) in the locking mechanism (50) is connected to the spring (52) and is parallel to the clamp base (10). The other right-angled side is perpendicular to the clamp base (10). The right-angled side of any clamping block (53) perpendicular to the clamp base (10) is tangent to the edge of the limiting groove (11) in the vertical direction, so that when the material is inserted into the limiting groove (11), the material is tangent to the clamping block (53). At least two symmetrically arranged locking mechanisms (50) are provided around the limiting groove (11). When the lifting seat (30) drives the pressure block (54) to press against the two clamping blocks (53), the two clamping blocks (53) adjacent to the material in the two locking mechanisms (50) clamp and fix the material under the pressure of the two pressure blocks (54).

7. A multi-station pneumatic clamp according to claim 6, characterized in that: The limiting groove (11) is provided with four locking mechanisms (50) around its periphery, and the four locking mechanisms (50) are evenly distributed around the limiting groove (11).

8. A multi-station pneumatic clamp according to claim 1, characterized in that: The clamp base (10) is rectangular, and the connecting mechanism (20) is located at the four corners of the clamp base (10). The clamp base (10) has through holes (13) at both ends for the lifting mechanism (40) to pass through, and mounting holes (14) for mounting the connecting mechanism (20) are located at the four corners of the clamp base (10). The mounting holes (14) are threaded.

9. A multi-station pneumatic clamp according to claim 1, characterized in that: The limiting groove (11) is provided with a drain hole (12) coaxial with the limiting groove (11), and the drain hole (12) passes through the fixture base (10).

10. A multi-station pneumatic clamp according to claim 1, characterized in that: The lifting seat (30) has movable holes (31) at its four corners that correspond to the mounting holes (14). The lifting seat (30) is fitted into the connecting rod (21) through the movable holes (31) and can slide along the connecting rod (21). The lifting seat (30) has multiple material holes (32) that correspond to the limiting grooves (11). The material holes (32) are set through the lifting seat (30) and the shape of the material holes (32) is consistent with the shape of the limiting grooves (11).

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