A multi-workpiece simultaneous clamping device

Abstract

This invention discloses a multi-workpiece simultaneous clamping device, including a fixed outer frame. A cylinder is fixedly connected to the top of the fixed outer frame, and a push column is fixedly connected to the output end of the cylinder through the top of the fixed outer frame. The push column is connected to a self-cleaning protection mechanism. Mounting plates are fixedly connected to the upper and lower parts of the inner side of the fixed outer frame. A control cavity is fixedly connected between the mounting plates. A different-height clamping mechanism is set inside the control cavity. This invention utilizes the different-height clamping mechanism to gradually squeeze the pallet as the extrusion of the extrusion airbag continues until the bottom pressure plate clamps the workpiece to be processed. Since the extrusion airbag can deform according to the falling height of the pallet placed below it, different extrusion columns can abut against workpieces of different heights through the corresponding bottom pressure plate, thereby realizing the simultaneous clamping of workpieces of different heights. The structure is ingenious, efficient, and highly automated.

Description

Technical Field

[0001] This invention relates to the field of workpiece processing technology, and in particular to a device for simultaneously clamping multiple workpieces. Background Technology

[0002] In the field of machining, it is well known that clamping the workpiece to be machined is one of the keys to the accuracy and quality of subsequent machining. Improving the clamping strength of the workpiece can effectively improve the yield of high-quality finished products.

[0003] Currently, workpiece clamping operations are mostly performed individually, with each workpiece clamped and processed one by one. Sometimes, workpieces of the same height are placed together for clamping. However, during manual operation, it is inevitable that workpieces of different heights will be placed together, resulting in the clamping planes of different workpieces not being on the same plane. This height difference causes some workpieces to not be clamped properly due to insufficient force, requiring manual adjustment and greatly reducing the processing efficiency of the workpieces.

[0004] Therefore, the present invention is used to address the situation where the upper surfaces of multiple workpieces are not on the same plane when clamping multiple workpieces, resulting in some workpieces not being clamped due to insufficient force. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-workpiece simultaneous clamping device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A multi-workpiece clamping device includes a fixed outer frame, a cylinder fixedly connected to the top of the fixed outer frame, a push column fixedly connected to the output end of the cylinder through the top of the fixed outer frame, a self-cleaning protection mechanism connected to the push column, mounting plates fixedly connected to the upper and lower parts of the inner side of the fixed outer frame, a control cavity fixedly connected between the mounting plates, and a different-height clamping mechanism provided inside the control cavity.

[0008] The self-cleaning protection mechanism includes an upper air chamber fixedly connected to the top surface of the control chamber. The push column penetrates the top surface of the upper air chamber. A stopper plate is fixedly connected to one end of the push column inside the upper air chamber. The side of the stopper plate slides against the inner wall of the upper air chamber. A safety valve is provided on the side wall of the upper air chamber near the top surface of the control chamber. An air pipe is fixedly connected to the outlet end of the safety valve. A dust blowing mechanism is fixedly connected to the end of the air pipe away from the safety valve.

[0009] The varying height and clamping mechanism includes a compression airbag disposed on the top surface of the control cavity. The interior of the compression airbag is connected to the interior of the upper air chamber through a vent pipe. The vent pipe passes through the top surface of the control cavity and the bottom surface of the upper air chamber. Several compression columns are slidably connected to the bottom surface of the control cavity. A support plate is fixedly connected to one end of each compression column inside the control cavity. A return spring is sleeved between the support plate and the bottom surface of the control cavity. A bottom pressure plate is fixedly connected to the end of each compression column away from the control cavity. Several horizontal clamping interfaces are opened along the vertical direction on each compression column. A reinforcement mechanism is connected to each horizontal clamping interface.

[0010] Preferably, the reinforcement mechanism includes a reset cavity block fixedly connected to the lower part of the outer surface of the control cavity. The interior of the reset cavity block is hollow, and the bottom surface of the reset cavity block is open. An inverted U-shaped limiting frame is fixedly connected to the bottom of the reset cavity block. A vertical spring is fixedly connected to the inner top surface of the reset cavity block. The vertical spring passes through the top surface of the inverted U-shaped limiting frame. A receiving column cavity block is fixedly connected to the end of the vertical spring away from the inner top surface of the reset cavity block. A locking post is slidably connected inside the receiving column cavity block. A first magnetic post is fixedly connected to the end of the locking post away from the squeezing post. The cross-sectional radius of the first magnetic post is larger than the cross-sectional radius of the locking post. A transverse spring is sleeved between the receiving column cavity block and the first magnetic post.

[0011] Preferably, the reinforcement mechanism further includes a horizontal bar sleeved on the top of the push column, and a pressure vertical bar is fixedly connected to both ends of the bottom surface of the horizontal bar. The bottom of the pressure vertical bar is provided with a compression notch, and a second magnetic column is embedded in the side of the compression notch at the bottom of the pressure vertical bar.

[0012] Preferably, the end of the cylindrical cavity block near the pressure rod extends out of the inverted U-shaped limiting frame, and the top surface of the end of the cylindrical cavity block extending out of the inverted U-shaped limiting frame is fixedly connected with an anti-slip pad, and the first magnetic column and the second magnetic column have the same magnetic pole at their close proximity.

[0013] Preferably, the anti-slip pad is placed directly below the extrusion notch, the top surface of the inverted U-shaped limiting frame is fixedly connected to the bottom surface of the control cavity, and the snap-fit ​​post can extend into the horizontal snap-fit ​​interface.

[0014] Preferably, the first magnetic post can slide inside the cavity block, and the first magnetic post cannot detach from the cavity block. The cavity block can slide on the inner wall of the inverted U-shaped limiting frame.

[0015] Preferably, a rubber pad is fixedly connected to the bottom surface of the pressure plate, and the support plate is located below the compression airbag.

[0016] Preferably, the dust blowing mechanism includes a long and narrow cavity, the interior of which is connected to the interior of the air pipe, and a plurality of exhaust ports are provided on the bottom surface of the long and narrow cavity. A guide plate is fixedly connected to the lower end of the side of the long and narrow cavity away from the control cavity.

[0017] Preferably, a base plate is fixedly connected to the bottom of the fixed outer frame, a fixing opening is provided on the base plate, and a partition protrusion is fixedly connected to the upper surface of the base plate.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. The self-cleaning protection mechanism utilizes a safety valve to control the upper limit of air pressure within the sealed chamber, thus preventing rupture due to excessive expansion of the compression airbag. Simultaneously, the air guide plate in the dust blowing mechanism directs excess gas towards the area below the control chamber, removing debris, dust, and other impurities that fall onto the bottom pressure plate or horizontal clamping interface during workpiece processing. This maintains the safety and cleanliness of key components, ensuring the stability of the device's operation and improving its working efficiency. The device features a sophisticated and efficient structure with strong application prospects.

[0020] 2. By using a different height clamping mechanism, the extrusion airbag gradually squeezes the pallet as it expands until the bottom pressure plate clamps the workpiece to be processed. Since the extrusion airbag can deform according to the falling height of the pallet below it, different extrusion columns can be used to hold the workpieces to be processed at different heights through the corresponding bottom pressure plate, thus achieving simultaneous clamping of workpieces at different heights. The structure is ingenious, efficient, and highly automated.

[0021] 3. By setting up a reinforcement mechanism, the first magnetic column, under the repulsive force of the second magnetic column, drives the snap-fit ​​column to move inside the receiving column cavity, thereby allowing the snap-fit ​​column to extend into the horizontal snap-fit ​​interface, which in turn drives the extrusion column to move further downward, achieving further extrusion and clamping of the workpiece. This greatly improves the clamping strength of workpieces of different heights at the same time and improves the clamping efficiency of the device. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a multi-workpiece simultaneous clamping device proposed in this invention;

[0023] Figure 2 This is a schematic diagram of the connection between the push column and the crossbar in a multi-workpiece simultaneous clamping device proposed in this invention;

[0024] Figure 3 This is a front view of a multi-workpiece simultaneous clamping device proposed in this invention;

[0025] Figure 4 This is a side view of a multi-workpiece simultaneous clamping device proposed in this invention;

[0026] Figure 5 This is a schematic diagram showing the connection between the bottom pressure plate and the rubber pad in a multi-workpiece simultaneous clamping device proposed in this invention;

[0027] Figure 6 This is a cross-sectional view of the clamping mechanism with different heights in a multi-workpiece simultaneous clamping device proposed in this invention.

[0028] Figure 7 This is a side view of the clamping mechanism with different heights in a multi-workpiece simultaneous clamping device proposed in this invention;

[0029] Figure 8 This is a cross-sectional view of the self-cleaning protection mechanism in a multi-workpiece simultaneous clamping device proposed in this invention.

[0030] Figure 9 This is a cross-sectional view of the reinforcement mechanism in a multi-workpiece simultaneous clamping device proposed in this invention;

[0031] Figure 10 This is a schematic diagram of the dust blowing mechanism in a multi-workpiece simultaneous clamping device proposed in this invention.

[0032] In the diagram: 1. Fixed outer frame; 101. Base plate; 102. Separating protrusion; 103. Fixing port; 104. Cylinder; 105. Mounting plate; 2. Push column; 201. Horizontal bar; 202. Pressurizing vertical bar; 203. Extrusion notch; 204. Second magnetic column; 3. Upper air chamber; 301. Control chamber; 302. Safety valve; 303. Air pipe; 304. Long and narrow chamber; 305. Exhaust fan. 306. Air guide plate; 4. Support plate; 401. Compression airbag; 402. Compression column; 403. Return spring; 404. Bottom pressure plate; 405. Rubber pad; 406. Horizontal locking interface; 5. Return cavity block; 501. Inverted U-shaped limit frame; 502. Receiving column cavity block; 503. Vertical spring; 504. Locking column; 505. Horizontal spring; 506. First magnetic column; 6. Plug plate. Detailed Implementation

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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 the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] Reference Figure 1-10 As shown, a multi-workpiece simultaneous clamping device includes a fixed outer frame 1. A cylinder 104 is fixedly connected to the top of the fixed outer frame 1. The output end of the cylinder 104 passes through the top of the fixed outer frame 1 and is fixedly connected to a push column 2. When the device is in use, the output end of the cylinder 104 pushes the push column 2 to move upward into the air chamber 3. The cylinder 104 is existing technology and will not be described in detail here. The push column 2 is connected to a self-cleaning protection mechanism. Mounting plates 105 are fixedly connected to the upper and lower parts of the inner side of the fixed outer frame 1. A control cavity 301 is fixedly connected between the mounting plates 105. A different height clamping mechanism is provided inside the control cavity 301.

[0037] The self-cleaning protection mechanism includes an upper air chamber 3 fixedly connected to the top surface of the control chamber 301. A pusher 2 penetrates the top surface of the upper air chamber 3. A stopper plate 6 is fixedly connected to one end of the pusher 2 inside the upper air chamber 3. The side of the stopper plate 6 slides against the inner wall of the upper air chamber 3. It should be noted that the stopper plate 6 is equipped with a one-way air inlet valve. When the stopper plate 6 slides upward along the inner wall of the upper air chamber 3, it causes the compression airbag 401 to contract and external air to enter the upper air chamber 3 through the one-way air inlet valve. A safety air valve 302 is provided on the side wall of the air chamber 3 near the top surface of the control chamber 301. It should be noted that the safety air valve 302 can be set to the maximum air pressure inside the upper air chamber 3. When the air pressure inside the upper air chamber 3 exceeds a certain threshold, the safety air valve 302 will be opened to release air. This is existing technology, so it will not be described in detail here. An air pipe 303 is fixedly connected to the outlet end of the safety air valve 302. A dust blowing mechanism is fixedly connected to the end of the air pipe 303 away from the safety air valve 302.

[0038] By utilizing the self-cleaning protection mechanism, the safety valve 302 controls the upper limit of the air pressure in the closed chamber, thus preventing rupture due to excessive expansion of the compression airbag 401. Simultaneously, the air guide plate 306 in the dust blowing mechanism blows excess gas towards the area below the control chamber 301, removing debris, dust, and other impurities that fall onto the bottom pressure plate 404 or into the horizontal clamping interface 406 during workpiece processing. This maintains the safety and cleanliness of the key components of the device, ensuring its operational stability and improving its working efficiency. The device features a sophisticated and efficient structure with strong application prospects.

[0039] Furthermore, the differential clamping mechanism includes a compression airbag 401 disposed on the top surface of the control cavity 301. The interior of the compression airbag 401 is connected to the interior of the upper air chamber 3 via a vent pipe 601. The vent pipe 601 passes through the top surface of the control cavity 301 and the bottom surface of the upper air chamber 3. Several compression columns 402 are slidably connected to the bottom surface of the control cavity 301. It should be noted that the number of compression columns 402 can be determined according to the actual situation where several workpieces are often clamped simultaneously. In this embodiment, three compression columns 402 are provided, corresponding to the base plate 1. The upper surface of the base plate 1 is fixedly connected to the partition protrusion 102, which divides the upper surface of the base plate 1 into three parts. The height of the partition protrusion 102 is lower than the shortest workpiece being processed. The end of the extrusion column 402 located inside the control cavity 301 is fixedly connected to the support plate 4. The extrusion column 402 is located between the support plate 4 and the bottom surface of the control cavity 301 and is fitted with a return spring 403. The end of the extrusion column 402 away from the control cavity 301 is fixedly connected to the bottom pressure plate 404. The extrusion column 402 has several horizontal locking interfaces 406 along the vertical direction. The horizontal locking interfaces 406 are connected to the reinforcement mechanism.

[0040] By using a clamping mechanism with varying heights, the compression airbag 401 gradually compresses the pallet 4 as it expands. At this time, the return spring 403 is compressed, and the compression column 402 extends outward from the control cavity 301 until the bottom pressure plate 404 clamps the workpiece to be processed. Since the compression airbag 401 can deform according to the falling height of the pallet 4 below it, different compression columns 402 can be held against workpieces of different heights by the corresponding bottom pressure plate 404, thereby achieving simultaneous clamping of workpieces of different heights. The structure is ingenious, efficient, and highly automated.

[0041] Furthermore, the reinforcement mechanism includes a reset cavity block 5 fixedly connected to the lower part of the outer side of the control cavity 301. The interior of the reset cavity block 5 is hollow, and the bottom surface of the reset cavity block 5 is open. An inverted U-shaped limiting frame 501 is fixedly connected to the bottom of the reset cavity block 5. A vertical spring 503 is fixedly connected to the inner top surface of the reset cavity block 5. The vertical spring 503 passes through the top surface of the inverted U-shaped limiting frame 501. A receiving column cavity block 502 is fixedly connected to one end of the vertical spring 503 away from the inner top surface of the reset cavity block 5. A locking post 504 is slidably connected inside the receiving column cavity block 502. A first magnetic post 506 is fixedly connected to one end of the locking post 504 away from the pressing post 402. The cross-sectional radius of the first magnetic post 506 is larger than the cross-sectional radius of the locking post 504. A horizontal spring 505 is sleeved between the receiving column cavity block 502 and the first magnetic post 506.

[0042] The reinforcement mechanism also includes a horizontal bar 201 sleeved on the top of the push column 2. A pressure vertical bar 202 is fixedly connected to both ends of the bottom surface of the horizontal bar 201. The bottom of the pressure vertical bar 202 has a compression notch 203. A second magnetic column 204 is embedded in the side of the compression notch 203 at the bottom of the pressure vertical bar 202. One end of the receiving column cavity block 502 near the pressure vertical bar 202 extends out of an inverted U-shaped limiting frame 501. An anti-slip pad is fixedly connected to the top surface of the end of the receiving column cavity block 502 extending out of the inverted U-shaped limiting frame 501. The first magnetic column 506 and the second magnetic column 204 have the same magnetic pole at their closest points, which ensures that when the second magnetic column 204 and the first magnetic column 506 approach each other, the first magnetic column 204... The magnetic post 506 slides away from the second magnetic post 204. At this time, the horizontal spring 505 is compressed, the locking post 504 extends into the horizontal locking interface 406, and the anti-slip pad contacts the compression notch 203. It should be noted that the anti-slip pad is placed directly below the compression notch 203. The top surface of the inverted U-shaped limiting frame 501 is fixedly connected to the bottom surface of the control cavity 301. The locking post 504 can extend into the horizontal locking interface 406. The first magnetic post 506 can slide inside the column cavity block 502. The first magnetic post 506 cannot detach from the inside of the column cavity block 502. When the reinforcing mechanism is in operation, the column cavity block 502 slides on the inner wall of the inverted U-shaped limiting frame 501.

[0043] By using the reinforcement mechanism, the first magnetic column 506, under the repulsive force of the second magnetic column 204, drives the locking column 504 to move inside the receiving column cavity block 502, thereby allowing the locking column 504 to extend into the horizontal locking interface 406. Since the heights of the workpieces to be processed are different, the lengths of the different pressing columns 402 extending out of the control cavity 301 are different. This causes the different locking columns 504 to extend into the horizontal locking interface 406, which was originally not on the same horizontal plane but is now on the same horizontal plane. Then, the anti-slip pad contacts the pressing notch 203, and the push column 2 continues to move downwards. Through the horizontal bar 201 and the pressure vertical bar 202, it continues to push the receiving column cavity block 502 downwards, thereby driving the pressing column 402 to move further downwards. At this time, the rubber pad 405 is fully compressed, achieving further compression and clamping of the workpiece, greatly improving the simultaneous clamping strength for workpieces of different heights and increasing the clamping efficiency of the device.

[0044] It should be further explained that a rubber pad 405 is fixedly connected to the bottom surface of the bottom pressure plate 404. The rubber pad 405 serves two purposes: firstly, to enhance the friction between the bottom pressure plate 404 and the workpiece, preventing creep between them when the workpiece is subjected to lateral processing forces, thus minimizing impact on processing quality; and secondly, to provide sufficient clearance between the bottom pressure plate 404 and the workpiece, facilitating further compression of the rubber pad 405 by the reinforcement mechanism, thereby achieving clamping of workpieces of varying heights. This is because the compression airbag 401 is prone to deformation. Its compressive strength to the workpiece is insufficient to handle situations where the workpiece processing force is large. The pallet 4 is located below the extrusion airbag 401. The dust blowing mechanism includes a long and narrow cavity 304. The interior of the long and narrow cavity 304 is connected to the interior of the air pipe 303. Several exhaust ports 305 are opened on the bottom surface of the long and narrow cavity 304. A guide plate 306 is fixedly connected to the lower end of the side of the long and narrow cavity 304 away from the control cavity 301. A base plate 101 is fixedly connected to the bottom of the fixed outer frame 1. A fixing port 103 is provided on the base plate 101. A partition protrusion 102 is fixedly connected to the upper surface of the base plate 101.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-workpiece simultaneous clamping device, comprising a fixed outer frame (1), characterized in that, A cylinder (104) is fixedly connected to the top of the fixed outer frame (1). The output end of the cylinder (104) is fixedly connected to a push column (2) through the top of the fixed outer frame (1). The push column (2) is connected to a self-cleaning protection mechanism. Mounting plates (105) are fixedly connected to the upper and lower parts of the inner side of the fixed outer frame (1). A control cavity (301) is fixedly connected between the mounting plates (105). A different height clamping mechanism is provided inside the control cavity (301). The self-cleaning protection mechanism includes an upper air chamber (3) fixedly connected to the top surface of the control chamber (301). The pusher (2) penetrates the top surface of the upper air chamber (3). A plug plate (6) is fixedly connected to one end of the pusher (2) inside the upper air chamber (3). The side of the plug plate (6) slides against the inner wall of the upper air chamber (3). A safety valve (302) is provided on the side wall of the upper air chamber (3) near the top surface of the control chamber (301). An air pipe (303) is fixedly connected to the outlet end of the safety valve (302). A dust blowing mechanism is fixedly connected to the end of the air pipe (303) away from the safety valve (302). The height-same-clamp mechanism includes a compression airbag (401) disposed on the top surface of the control cavity (301). The interior of the compression airbag (401) is connected to the interior of the upper air cavity (3) through a vent pipe (601). The vent pipe (601) passes through the top surface of the control cavity (301) and the bottom surface of the upper air cavity (3). A plurality of compression columns (402) are slidably connected to the bottom surface of the control cavity (301). The compression columns (402) are located in the control cavity. A support plate (4) is fixedly connected to one end inside the body (301). A reset spring (403) is sleeved between the support plate (4) and the bottom surface of the control cavity (301) of the extrusion column (402). A bottom pressure plate (404) is fixedly connected to the end of the extrusion column (402) away from the control cavity (301). Several horizontal locking interfaces (406) are opened along the vertical direction of the extrusion column (402). A reinforcing mechanism is connected to the horizontal locking interfaces (406). The reinforcement mechanism includes a reset cavity block (5) fixedly connected to the lower part of the outer side of the control cavity (301). The interior of the reset cavity block (5) is hollow, and the bottom surface of the reset cavity block (5) is open. An inverted U-shaped limiting frame (501) is fixedly connected to the bottom of the reset cavity block (5). A vertical spring (503) is fixedly connected to the inner top surface of the reset cavity block (5). The vertical spring (503) passes through the top surface of the inverted U-shaped limiting frame (501) and is away from the reset cavity. One end of the inner top surface of the cavity block (5) is fixedly connected to a cylindrical cavity block (502). A snap-fit ​​post (504) is slidably connected inside the cylindrical cavity block (502). A first magnetic post (506) is fixedly connected to the end of the snap-fit ​​post (504) away from the extrusion post (402). The cross-sectional radius of the first magnetic post (506) is larger than the cross-sectional radius of the snap-fit ​​post (504). A transverse spring (505) is sleeved between the cylindrical cavity block (502) and the first magnetic post (506) of the snap-fit ​​post (504). The reinforcement mechanism also includes a horizontal bar (201) sleeved on the top of the push column (2). Both ends of the bottom surface of the horizontal bar (201) are fixedly connected to a pressure vertical bar (202). The bottom of the pressure vertical bar (202) is provided with a compression notch (203). The bottom of the pressure vertical bar (202) is located on the side of the compression notch (203) and a second magnetic column (204) is embedded therein. The end of the cylindrical cavity block (502) near the pressure rod (202) extends out of the inverted U-shaped limiting frame (501). The top surface of the end of the cylindrical cavity block (502) extending out of the inverted U-shaped limiting frame (501) is fixedly connected with an anti-slip pad. The first magnetic column (506) and the second magnetic column (204) have the same magnetic pole at their close proximity.

2. The multi-workpiece simultaneous clamping device according to claim 1, characterized in that, The anti-slip pad is placed directly below the extrusion notch (203), the top surface of the inverted U-shaped limiting frame (501) is fixedly connected to the bottom surface of the control cavity (301), and the snap-fit ​​post (504) can extend into the horizontal snap-fit ​​interface (406).

3. The multi-workpiece simultaneous clamping device according to claim 2, characterized in that, The first magnetic column (506) can slide inside the cylindrical cavity block (502), and the first magnetic column (506) cannot detach from the inside of the cylindrical cavity block (502). The cylindrical cavity block (502) can slide on the inner wall of the inverted U-shaped limiting frame (501).

4. The multi-workpiece simultaneous clamping device according to claim 1, characterized in that, The bottom surface of the pressure plate (404) is fixedly connected to a rubber pad (405), and the support plate (4) is located below the compression airbag (401).

5. A multi-workpiece simultaneous clamping device according to claim 1, characterized in that, The dust blowing mechanism includes a long and narrow cavity (304), the interior of which is connected to the interior of the air pipe (303). The bottom surface of the long and narrow cavity (304) is provided with several exhaust ports (305). A guide plate (306) is fixedly connected to the lower end of the side of the long and narrow cavity (304) away from the control cavity (301).

6. A multi-workpiece simultaneous clamping device according to claim 1, characterized in that, The bottom of the fixed outer frame (1) is fixedly connected to a base plate (101), the base plate (101) is provided with a fixing port (103), and the upper surface of the base plate (101) is fixedly connected to a partition protrusion (102).

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