Multi-directional fixed pneumatic clamping mechanism

Abstract

The utility model provides a multidirectional fixed pneumatic clamping mechanism which comprises a base, a clamped sample clamping area is arranged on the base, and at least two first pneumatic clamping mechanisms for clamping a clamped sample from different positions are arranged around the clamped sample clamping area. The first pneumatic clamping mechanism comprises a first pneumatic telescopic component. An air cylinder part of the first pneumatic telescopic component is fixed to the base, a telescopic rod part of the first pneumatic telescopic component is connected with a first clamping connecting plate, and a first clamping connector is arranged on the side, facing the clamped sample clamping area, of the first clamping connecting plate. According to the utility model, a sample can be stably clamped in a multidirectional clamping manner. The clamp is mainly a pneumatic clamp, the clamping process and the clamping releasing process can be achieved through a valve or a switch, and the clamping process is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping equipment, in particular to a multi-directional fixed pneumatic clamping mechanism. Background Art

[0002] Currently, the main advanced manufacturing processes for aluminum alloys include laser welding, hydroforming, squeeze casting, and high-vacuum die-casting. Compared with other manufacturing processes, die-casting offers high production efficiency, high dimensional accuracy, excellent mechanical properties, high material utilization, and better economic benefits for mass production.

[0003] Die-cast aluminum alloys are the most commonly used aluminum alloys, accounting for approximately 70% of all cast aluminum alloy products. However, their mechanical properties are somewhat limited. Typical die-cast Al-Si aluminum alloys, such as ZL101 aluminum alloy, have a tensile strength of only approximately 150 MPa. Therefore, friction stir processing (FSP) is commonly used to strengthen the substrate.

[0004] Friction stir processing (FSP) involves treating a substrate using a non-consumable rotating tool with a needle and a shoulder. During FSP, the tool rotates at high speed and penetrates the workpiece under axial force until the shoulder contacts the workpiece surface, generating friction. The tool then moves relative to the workpiece in the processing direction, generating significant heat due to frictional heat. This frictional heat raises the substrate temperature in the processing area, softening the material. The rotation and movement of the needle induces intense plastic deformation, ultimately causing the material to reshape under plastic flow.

[0005] During friction stir strengthening, cast aluminum alloy samples are subject to vibration and displacement due to the torque of the stirrer. This vibration and displacement can severely impact machining accuracy, necessitating a clamp to hold the sample. However, existing clamps lack stability, and small sample displacements can occur during machining. Utility Model Content

[0006] In order to solve the shortcomings of the existing technology, the utility model provides a multi-directional fixed pneumatic clamping mechanism, including: a base, a clamping area for a clamped sample is provided on the base, and at least two first pneumatic clamping mechanisms are provided around the clamping area for the clamped sample to clamp the clamped sample from different positions.

[0007] The first pneumatic clamping mechanism includes a first pneumatic telescopic component, wherein the cylinder portion of the first pneumatic telescopic component is fixed to the base, the telescopic rod portion is connected to a first clamping plate, and the first clamping plate is provided with a first clamping joint on a side facing the clamping area of the clamped sample.

[0008] Furthermore, the first clamping plate is rotatably connected to the telescopic rod of the first pneumatic telescopic component via a rotating mechanism along a cross-sectional direction of the telescopic rod of the first pneumatic telescopic component.

[0009] Furthermore, at least one second clamping plate is mounted on the first clamping plate, and the second clamping plate is connected to the first clamping plate in a fixed or rotational manner. A second clamping joint is provided on the side of the second clamping plate facing the clamping area of the clamped sample.

[0010] Furthermore, the bottom surface of the second clamping joint is arranged at a higher level than the bottom surface of the first clamping joint.

[0011] Furthermore, the high-pressure gas inlet of each of the first pneumatic telescopic components is connected to an external high-pressure gas source via an independent high-pressure gas on-off valve or via an air pipe connected to the same high-pressure gas on-off valve. The high-pressure gas outlet of each of the first pneumatic telescopic components is connected to the external environment or to an external storage mechanism via an air pipe.

[0012] Furthermore, at least two second locking and clamping mechanisms for clamping the clamped sample from different positions are provided on the base around the clamped sample clamping area.

[0013] The second locking and clamping mechanism includes a locking base that is removably fixedly connected to the base. A push switch is provided on the locking base to control the locking / unlocking state of the connecting rod. A locking head is provided at one end of the connecting rod, adjacent to the clamping area of the clamped sample. The locking head has a locking hole that matches the securing hole of the clamped sample.

[0014] Furthermore, the base is provided with at least two sliding grooves facing the clamped sample holding area around the clamped sample holding area, and the sliding fixing block is slidably connected to the sliding groove and is detachably fixedly connected to the base or the sliding groove.

[0015] Furthermore, at least two auxiliary clamping components are provided on the base around the clamping area of the clamped sample. The auxiliary clamping components include a screw that rotates with the base, and a third clamping plate is screwed onto the screw.

[0016] Furthermore, the auxiliary clamping component includes a limiting rod for pressing against the clamped sample. The third clamping plate has an elongated hole at one end near the clamping area of the clamped sample. The top of the limiting rod is wider than the elongated hole and is secured with a stud that passes through the elongated hole. The stud is threadedly connected to a knob on the side of the elongated hole facing away from the limiting rod.

[0017] The beneficial effects of the present invention are:

[0018] 1. The utility model can stably clamp the sample through multi-directional clamping.

[0019] 2. The clamp of this utility model is mainly a pneumatic clamp. The clamping and releasing processes can be achieved through valves or switches, and the clamping process is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the lateral structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the lateral structure of the utility model in another direction;

[0022] In the figure: 1. Base; 101. Sliding groove; 2. First pneumatic clamping mechanism; 201. First pneumatic telescopic component; 202. First clamping plate; 203. First clamping joint; 204. Second clamping plate; 205. Second clamping joint; 3. Unified control of high-pressure gas opening and closing valve; 4. Second locking clamping mechanism; 401. Locking base; 402. Press switch; 403. Connecting rod; 404. Locking head; 5. Sliding fixed block; 6. Auxiliary clamping component; 601. Screw; 602. Third clamping plate; 603. Long waist hole; 604. Limit rod; 605. Knob; 7. Clamped sample. DETAILED DESCRIPTION

[0023] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0024] Please note that the terms "above", "below", "left", "right", "top", "top", "bottom", "bottom", etc. used in this utility model to describe the positional relationship do not represent the absolute positional relationship between the modules / components / assemblies / components / parts, but the relative positional relationship between the modules / components / assemblies / components / parts.

[0025] Example 1

[0026] A pneumatic clamping mechanism with multi-directional fixation, such as Figure 1 and Figure 2 As shown, it comprises: a base 1, a clamped sample clamping area is provided on the base 1, and at least two first pneumatic clamping mechanisms 2 are provided around the clamped sample clamping area for clamping the clamped sample from different positions.

[0027] The first pneumatic clamping mechanism 2 includes a first pneumatic telescopic component 201. The cylinder portion of the first pneumatic telescopic component 201 is fixed to the base 1, and the telescopic rod portion is connected to a first clamping plate 202. The first clamping plate 202 has a first clamping joint 203 on the side facing the clamping area of the clamped sample.

[0028] The process of using the device is as follows: first, the first pneumatic telescopic component 201 is closed, and the telescopic rod of the first pneumatic telescopic component 201 rebounds, so that the clamped sample 7 can be placed in the clamped sample clamping area. Then, the first pneumatic telescopic component 201 is started, and the telescopic rod of the first pneumatic telescopic component 201 is pressed down, thereby driving the first clamping joint 203 to press down the clamped sample 7 through the first clamping plate 202. Since the utility model is provided with at least two first pneumatic clamping mechanisms 2 from different positions, for example Figure 1 and Figure 2 The four positions shown in the figure can thus exert a stable pressure on the clamped sample 7, thereby stably clamping the clamped sample 7. Finally, after the clamped sample 7 is processed, the first pneumatic telescopic component 201 is closed, and the telescopic rod of the first pneumatic telescopic component 201 rebounds, allowing the clamped sample 7 to be removed after processing, and a new clamped sample 7 to be placed in and the above process is repeated.

[0029] The utility model can stably clamp the sample in a multi-directional clamping manner. In addition, the clamp of the utility model is mainly a pneumatic clamp, and the clamping and releasing processes can be achieved by controlling the valve or switch of the pneumatic telescopic component, making the clamping process convenient.

[0030] Example 2

[0031] Based on the multi-directional fixed pneumatic clamping mechanism of Example 1, the first clamping plate 202 is connected to the telescopic rod of the first pneumatic telescopic component 201 via a rotation mechanism that is rotatable along the cross-sectional direction of the telescopic rod of the first pneumatic telescopic component 201. The rotation mechanism can be a single-axis rotation mechanism such as a bearing or a rotation groove, or a screw-connected directional rotation structure of a screw thread.

[0032] This arrangement provides the first clamping plate 202 with an adjustable degree of freedom, allowing the positions of the first clamping plate 202 and the first clamping joint 203 to be adjusted by rotating the first clamping plate 202. This allows the first clamping joint 203 to adapt to the clamped sample 7, improving downward pressure stability. Furthermore, the position of the first clamping plate 202 can be adjusted to prevent it from obstructing the installation space when installing or removing the clamped sample 7.

[0033] For example, when a screw thread directional rotation structure is used, the telescopic rod of the first pneumatic telescopic component 201 can be rotated from the placement direction (such as the direction facing away from or perpendicular to the clamping area of the clamped sample) to the pressing direction (such as the direction facing away from or perpendicular to the clamping area of the clamped sample) under the restriction of the thread when the telescopic rod of the first pneumatic telescopic component 201 is pressed down. Figure 1 and Figure 2 ), it can automatically press down to clamp and lift up to release the clamping of standard parts in the same batch.

[0034] Example 3

[0035] Based on the multi-directional fixed pneumatic clamping mechanism of embodiment 1, as Figure 1 and Figure 2 As shown, at least one second clamping plate 204 is mounted on the first clamping plate 202. The second clamping plate 204 is fixedly or rotatably connected to the first clamping plate 202. A second clamping joint 205 is provided on the side of the second clamping plate 204 facing the clamping area of the clamped sample.

[0036] The bottom surface of the second clamping joint 205 is arranged at a higher level than the bottom surface of the first clamping joint 203 .

[0037] This arrangement can improve the adaptability of the multi-directional fixed pneumatic clamping mechanism by rotating the first clamping plate 202 so that the second clamping joint 205 having a different height from the first clamping joint 203 can match the clamped samples 7 of different heights.

[0038] Example 4

[0039] Based on the multi-directional fixed pneumatic clamping mechanism of Example 1, the high-pressure gas inlet of each first pneumatic telescopic component 201 is connected to an external high-pressure gas source via an independent high-pressure gas on-off valve or via an air pipe connected to the same high-pressure gas on-off valve. The high-pressure gas outlet of each first pneumatic telescopic component 201 is connected to the external environment or an external storage mechanism via an air pipe.

[0040] like Figure 1 and Figure 2The diagram shows an exemplary structure. The high-pressure gas inlet of each first pneumatic telescopic component 201 is connected to the high-pressure gas outlet of the centrally controlled high-pressure gas on-off valve 3 via a tracheal hose (not shown). The high-pressure gas outlet of each first pneumatic telescopic component 201 is also connected to the high-pressure gas exhaust of the centrally controlled high-pressure gas on-off valve 3 via a tracheal hose (not shown). The high-pressure gas inlet of the centrally controlled high-pressure gas on-off valve 3 is connected to an external high-pressure gas source (not shown) via a tracheal hose (not shown). The high-pressure gas supplied from the external high-pressure gas source is centrally controlled by the centrally controlled high-pressure gas on-off valve 3. When the centrally controlled high-pressure gas on-off valve 3 is activated, the high-pressure gas outlet and high-pressure gas inlet of the centrally controlled high-pressure gas on-off valve 3 are opened, while the high-pressure gas exhaust is closed. High-pressure gas from the external high-pressure gas source is supplied to each first pneumatic telescopic component 201 via the centrally controlled high-pressure gas on-off valve 3 and the tracheal hose. When the high-pressure gas is introduced into the first pneumatic telescopic component 201, the telescopic rod is depressed downward. When the high-pressure gas on-off valve 3 is uniformly controlled to maintain, the high-pressure gas outlet, high-pressure gas inlet, and high-pressure gas exhaust of the high-pressure gas on-off valve 3 are uniformly controlled to be closed, so that the high-pressure gas in the first pneumatic telescopic component 201 maintains the pressure. When the high-pressure gas on-off valve 3 is uniformly controlled to be closed, the high-pressure gas outlet and high-pressure gas inlet of the high-pressure gas on-off valve 3 are uniformly controlled to be closed, and the high-pressure gas exhaust is opened, so that the high-pressure gas in the first pneumatic telescopic component 201 is discharged from the high-pressure gas exhaust to the external environment or an external storage mechanism.

[0041] Example 5

[0042] Based on the multi-directional fixed pneumatic clamping mechanism of embodiment 1, as Figure 1 and Figure 2 As shown, at least two second locking and clamping mechanisms 4 for clamping the clamped sample from different positions are provided on the base 1 around the clamped sample clamping area.

[0043] The second locking and clamping mechanism 4 comprises a locking base 401 that is detachably fixedly connected to the base 1. A push switch 402 is provided on the locking base 401, which controls the locking / unlocking state of a connecting rod 403. A locking head 404 is provided at one end of the connecting rod 403, adjacent to the clamping area of the clamped sample. The locking head 404 has a locking hole that matches the fixing hole of the clamped sample.

[0044] This setting adds an auxiliary clamp stabilizing mechanism, that is, when the clamped sample 7 is provided with a mounting hole, this mechanism can be used to screw the locking head 404 and the clamped sample 7 together through the locking screw, and adjust the connecting rod 403 by pressing the switch 402, so that the connecting rod 403 can be releasably and adjustable locked with the locking base 401, and through the detachable fixed connection between the locking base 401 and the base 1 (such as screw tightening), the clamped sample 7 is fixed by the second locking clamping mechanism 4, thereby improving the stability during clamping.

[0045] Example 6

[0046] Based on the multi-directional fixed pneumatic clamping mechanism of embodiment 1, as Figure 1 and Figure 2 As shown, the base 1 is provided with at least two sliding grooves 101 facing the clamped sample clamping area around the clamped sample clamping area, and the sliding fixing block 5 is slidably connected to the sliding groove 101 and is detachably fixed to the base 1 or the sliding groove 101.

[0047] This arrangement can use a matching sliding fixing block 5 according to the structure of the clamped sample 7 to provide a multi-directional pressing force to the clamped sample 7, thereby further improving the clamping stability of the clamped sample 7.

[0048] like Figure 1 and Figure 2 As shown, the present invention exemplarily provides two types of sliding fixing blocks 5, wherein the sliding fixing block 5-A is a square structure, and a matching surface matching the clamped sample 7 is provided on the side facing the clamped sample 7. When in use, the sliding fixing block 5-A is slid to a position where it presses against the clamped sample 7, and the sliding fixing block 5-A is fixed by screws, snaps or other detachable fixing methods, so that the sliding fixing block 5-A provides a pressing force to the clamped sample 7. The sliding fixing block 5-B is a rod-type fixing mechanism, which is fixed to the base 1 through a base. A press switch and a pressing rod for adjusting the convex movement position by the pressed switch are provided on the base. A pressing head is provided on the end of the pressing rod facing the clamped sample 7. By adjusting the pressing switch to adjust the pressing rod, the pressing head is pressed against the side of the clamped sample 7 to provide a pressing force.

[0049] Example 7

[0050] Based on the multi-directional fixed pneumatic clamping mechanism of embodiment 1, as Figure 1 and Figure 2 As shown, at least two auxiliary clamping parts 6 are provided on the base 1 around the clamping area of the clamped sample. The auxiliary clamping parts 6 include a screw 601 rotatably connected to the base 1 , and a third clamping plate 602 is screwed onto the screw 601 .

[0051] At this point, rotate the third clamping plate 602 above the clamped sample 7 and restrict its rotation (e.g., by manually or using a tool to clamp the third clamping plate 602 from both sides). Rotate the screw 601 to adjust the position of the third clamping plate 602 upward and downward, causing it to press down on the clamped sample 7 to provide auxiliary clamping. Rotate the screw 601 in the opposite direction, moving the third clamping plate 602 upward, thereby releasing the auxiliary clamping function on the clamped sample 7.

[0052] Example 8

[0053] Based on the multi-directional fixed pneumatic clamping mechanism of Example 7, Figure 1 and Figure 2 As shown, the auxiliary clamping component 6 also includes a limiting rod 604 for pressing against the clamped sample. The third clamping plate 602 has an elongated hole 603 at one end near the clamping area of the clamped sample. The top of the limiting rod 604 is wider than the elongated hole 603 and is secured with a stud 605 that passes through the elongated hole 603. The stud 605 is threadedly connected to a knob 606 on the side of the elongated hole 603 facing away from the limiting rod 604.

[0054] At this point, by rotating the knob 606, the pressure exerted by the knob 606 against the surface of the third clamping plate 602 surrounding the long waist hole 603 is released, allowing the position of the limiting rod 604 to be slidably adjusted within the long waist hole 603, allowing the limiting rod 604 to press against the side wall of the clamped sample 7. The knob 606 is then rotated in the opposite direction, causing the knob 606 to frictionally press against the surface of the third clamping plate 602 surrounding the long waist hole 603. Combined with the frictional pressure exerted by the top of the limiting rod 604 against the surface of the third clamping plate 602 surrounding the long waist hole 603, frictionally securing the limiting rod 604 is achieved. This arrangement provides lateral pressure on the clamped sample 7 through the lateral pressure of the limiting rod 604.

[0055] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. Multi-directional fixed pneumatic clamping mechanism, characterized in that: include: A base (1), wherein a clamped sample clamping area is provided on the base (1), and at least two first pneumatic clamping mechanisms (2) are provided around the clamped sample clamping area for clamping the clamped sample from different positions; The first pneumatic clamping mechanism (2) comprises: a first pneumatic telescopic component (201); a cylinder portion of the first pneumatic telescopic component (201) is fixed to the base (1), a telescopic rod portion is connected to a first clamping plate (202), and a first clamping joint (203) is provided on a side of the first clamping plate (202) facing the clamping area of the clamped sample.

2. The multi-directional fixed pneumatic clamping mechanism according to claim 1, characterized in that: The first clamping plate (202) is connected to the telescopic rod of the first pneumatic telescopic component (201) by rotation through a rotation mechanism along the cross-sectional direction of the telescopic rod of the first pneumatic telescopic component (201).

3. The multi-directional fixed pneumatic clamping mechanism according to any one of claims 1 or 2, characterized in that: At least one second clamping plate (204) is mounted on the first clamping plate (202), and the second clamping plate (204) is connected to the first clamping plate (202) in a fixed or rotational manner; a second clamping joint (205) is provided on the side of the second clamping plate (204) facing the clamping area of the clamped sample.

4. The multi-directional fixed pneumatic clamping mechanism according to claim 3, characterized in that: The bottom surface of the second clamping joint (205) and the bottom surface of the first clamping joint (203) are arranged in a high-low arrangement.

5. The multi-directional fixed pneumatic clamping mechanism according to claim 1, characterized in that: The high-pressure gas inlet end of each of the first pneumatic telescopic components (201) is connected to an external high-pressure gas source through a respective independent high-pressure gas opening and closing valve or through an air pipe connected to the same high-pressure gas opening and closing valve; the high-pressure gas outlet end of each of the first pneumatic telescopic components (201) is connected to an external environment or an external storage mechanism through an air pipe.

6. The multi-directional fixed pneumatic clamping mechanism according to claim 1, characterized in that: At least two second locking and clamping mechanisms (4) for clamping the clamped sample from different positions are provided on the base (1) around the clamped sample clamping area; The second locking and clamping mechanism (4) comprises: a locking base (401) detachably fixedly connected to the base (1); a push switch (402) is provided on the locking base (401), and the push switch (402) controls the locking / unlocking state of the connecting rod (403); a locking head (404) is provided at one end of the connecting rod (403) close to the clamping area of the clamped sample, and a locking hole is provided on the locking head (404) that matches the fixing hole of the clamped sample.

7. The multi-directional fixed pneumatic clamping mechanism according to claim 1, characterized in that: The base (1) is provided with at least two sliding grooves (101) facing the clamped sample clamping area, surrounding the clamped sample clamping area. The sliding fixed block (5) is slidably connected to the sliding groove (101) and is detachably fixedly connected to the base (1) or the sliding groove (101).

8. The multi-directional fixed pneumatic clamping mechanism according to claim 1, characterized in that: At least two auxiliary clamping components (6) are provided on the base (1) around a clamped sample clamping area. The auxiliary clamping components (6) include a screw (601) that rotates with the base (1), and a third clamping plate (602) is screwed onto the screw (601).

9. The multi-directional fixed pneumatic clamping mechanism according to claim 8, characterized in that: The auxiliary clamping component (6) includes a limiting rod (604) for pressing against the clamped sample, and the third clamping plate (602) is provided with a long waist hole (603) at one end close to the clamping area of the clamped sample; the top end of the limiting rod (604) is wider than the long waist hole (603) and is fixed with a stud passing through the long waist hole (603); the stud is screwed with a knob (605) on the side of the long waist hole (603) facing away from the limiting rod (604).

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