Oil pressure clamping jig for plate-type workpiece

Abstract

The oil pressure clamping jig comprises a working table and the plate-type workpiece, a movable groove is formed in the working table, a first adjusting assembly is arranged in the movable groove, a second adjusting assembly is installed on the first adjusting assembly, a supporting column is installed on the second adjusting assembly, and a plurality of pressing assemblies are arranged on the periphery of the working table. The pressing assembly comprises a supporting rod rotationally installed on the workbench, the upper portion of the supporting rod is in threaded connection with one end of a pressing plate, a cushion block is installed at the bottom of the other end of the pressing plate, the pressing plate is telescopic, a kidney-shaped hole is formed in the pressing plate, a screw is arranged in the kidney-shaped hole in a sliding mode, and the screw is installed on the workbench in a threaded mode. The section, located above the pressing plate, of the threaded rod is in threaded connection with a locking piece. According to the plate-type workpiece bending device, the edge of a plate-type workpiece can be evenly stressed, damage to the plate-type workpiece is avoided, the distance between the supporting columns can be adjusted according to the size of the plate-type workpiece, and follow-up bending machining is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic clamping technology, specifically to a hydraulic clamping fixture for plate-type workpieces. Background Technology

[0002] In the process of repairing the flatness of plate workpieces, the horizontal surface of the plate workpiece needs to be bent into an arc shape by a hydraulic press. Before processing, the plate workpiece is usually locked above the machine tool table by a hydraulic clamping fixture. The bottom of the plate workpiece is supported by a support column. Then, the hydraulic pressure of the hydraulic press is used to bend the plate workpiece, and the flatness is accurately measured by a laser measuring instrument.

[0003] Existing hydraulic clamping fixtures often cause pits on the surface of plate workpieces due to uneven clamping force when clamping them. This is extremely damaging to the plate workpieces and may even directly cause them to be scrapped. In addition, the support column is fixed to the worktable and cannot be adjusted according to the size of the plate workpiece.

[0004] Therefore, the applicant provides a hydraulic clamping fixture for plate-type workpieces to solve the above problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a hydraulic clamping fixture for plate workpieces.

[0006] To achieve the above objectives, this utility model adopts the following technical solution:

[0007] A hydraulic clamping fixture for plate workpieces includes a worktable and a plate workpiece. The worktable has a movable groove, and a first adjusting component is provided in the movable groove. A second adjusting component is installed on the first adjusting component, and a support column is installed on the second adjusting component. The plate workpiece can be placed on the support column. Several sets of clamping components are provided around the worktable.

[0008] The clamping assembly includes a support rod rotatably mounted on the workbench. One end of the support rod is threadedly connected to a pressure plate. A pad is installed at the bottom of the other end of the pressure plate. The pressure plate is telescopic. An oblong hole is opened on the pressure plate. A screw is slidably installed in the oblong hole. The screw is threadedly mounted on the workbench. A locking element is threadedly connected to the section of the screw above the pressure plate.

[0009] Furthermore, the first adjustment assembly includes a first bidirectional lead screw and a second bidirectional lead screw respectively rotatably mounted on both sides of the movable groove. Both ends of the first bidirectional lead screw and the second bidirectional lead screw are threadedly connected to a first threaded block. A second adjustment assembly is installed between the first threaded blocks on the first bidirectional lead screw and the second bidirectional lead screw. One end of the first bidirectional lead screw passes through the worktable and extends to the outside of the worktable to connect with the output end of the first motor. A linkage assembly is provided between the first bidirectional lead screw and the second bidirectional lead screw.

[0010] Furthermore, the second adjustment assembly includes a third bidirectional lead screw rotatably mounted between the upper parts of two of the first threaded blocks and a guide rod mounted between the upper parts of the other two first threaded blocks. The two ends of the third bidirectional lead screw are threadedly connected to second threaded blocks, and the two ends of the guide rod are slidably provided with sliders. The tops of the second threaded blocks and the sliders are both equipped with support columns. One end of the third bidirectional lead screw passes through one of the first threaded blocks and is connected to the output end of the second motor.

[0011] Furthermore, the linkage assembly includes a drive pulley mounted on a section of the first bidirectional lead screw extending out of the worktable, one end of the second bidirectional lead screw extending out of the worktable, and a driven pulley mounted on that end, with a belt sleeved between the drive pulley and the driven pulley.

[0012] Furthermore, a telescopic rod is connected between the second threaded block and the slider.

[0013] Furthermore, the pressure plate includes a pressure tail and a pressure head that slides with the pressure tail. The pressure tail is threaded to the upper part of the support rod. A pad is installed at the bottom of the pressure tail. A moving groove is opened in the end of the pressure tail near the pressure head. A moving rod is slidably arranged in the moving groove. One end of the moving rod extends out of the pressure tail and connects to the pressure head. A limiting groove is opened at the top of the moving rod. A limiting member that can extend into the limiting groove is installed on the pressure tail.

[0014] Furthermore, the workbench is provided with a plurality of first mounting holes for mounting support rods.

[0015] Furthermore, the workbench is provided with several second mounting holes for mounting screws.

[0016] Furthermore, a laser emitter is installed on one side of the workbench, and a laser receiver is placed on the plate-shaped workpiece.

[0017] Compared with the prior art, this utility model provides a hydraulic clamping fixture for plate-type workpieces, which has the following beneficial effects:

[0018] 1. This utility model uses a support rod to adjust the height of the pressure plate, making it suitable for plate workpieces of different heights. The pads contact the surface of the plate workpiece, ensuring that the edge of the plate workpiece is evenly stressed and the force is relatively dispersed, thus avoiding damage to the plate workpiece and facilitating the clamping and fixing of the plate workpiece. The oblong hole allows the screw to move after the pressure plate extends or retracts, facilitating the clamping component to clamp pressure plates of different lengths. The bottom of the clamping component contacts the pressure plate, locking the pressure plate while the pressure plate clamps the plate workpiece.

[0019] 2. This utility model adjusts the distance between the support columns by setting a first adjustment component and a second adjustment component, which is convenient to adjust according to the size of the plate workpiece, so that the plate workpiece can be better placed on the support columns, which facilitates subsequent bending processing.

[0020] 3. This utility model uses a laser measuring instrument to accurately measure the flatness of plate-type workpieces. It precisely measures the flatness data of various points on the plate-type workpiece using infrared light. By comparing the data with standard flatness data, operators can easily adjust the hydraulic pressure scheme at various points on the plate-type workpiece, regulating the pressure and speed during hydraulic operation. This ensures precise hydraulic pressure control, reduces problems caused by human factors during use, and improves work efficiency and product quality. Furthermore, operators can flexibly adjust the scheme by referring to visualized data (the data measured by the laser measuring instrument is displayed on the screen), allowing for more accurate control of hydraulic pressure and speed, thereby reducing errors and mistakes caused by human factors. Attached Figure Description

[0021] Figure 1 This is a top view schematic diagram of the structure of the present invention for removing plate-type workpieces;

[0022] Figure 2 This is a top view of the structure of this utility model;

[0023] Figure 3 This is a front view structural diagram of the present invention;

[0024] Figure 4 This is a front view cross-sectional structural diagram of the present invention;

[0025] Figure 5 This is a top view cross-sectional structural diagram of the pressure plate of this utility model when it is extended;

[0026] Figure 6 This is a frontal cross-sectional view of the structure of the pressure plate of this utility model when it is elongated;

[0027] Figure 7 This is a side view of the movable rod of this utility model.

[0028] The diagram shows the following components: 1. Worktable; 2. Movable groove; 3. First adjusting assembly; 31. First bidirectional lead screw; 32. Second bidirectional lead screw; 33. First threaded block; 34. First motor; 4. Second adjusting assembly; 41. Third bidirectional lead screw; 42. Guide rod; 43. Second threaded block; 44. Slider; 45. Second motor; 46. Telescopic rod; 5. Support column; 6. Pressing assembly; 61. Support rod; 62. Pressure plate; 621. Pressure tail; 622. Pressure head; 623. Moving groove; 624. Moving rod; 625. Limiting groove; 626. Limiting component; 63. Pad; 64. Waist-shaped hole; 65. Screw; 66. Locking component; 7. Linkage assembly; 71. Driving pulley; 72. Driven pulley; 73. Belt; 8. First mounting hole; 9. Second mounting hole; 10. Laser emitter; 11. Laser receiver; 12. Plate workpiece. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0030] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0031] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0034] This utility model embodiment provides a hydraulic clamping fixture for plate-type workpieces, referring to... Figures 1 to 4 The system includes a workbench 1 and a plate-shaped workpiece 12. The workbench 1 has a movable groove 2, and a first adjustment component 3 is provided in the movable groove 2. A second adjustment component 4 is installed on the first adjustment component 3, and a support column 5 is installed on the second adjustment component 4. The plate-shaped workpiece 12 can be placed on the support column 5. Several sets of clamping components 6 are provided around the workbench 1. The clamping components 6 include a support rod 61 rotatably installed on the workbench 1. One end of the pressure plate 62 is threadedly connected to the upper part of the support rod 61. A pad 63 is installed at the bottom of the other end of the pressure plate 62. The pressure plate 62 is telescopic. An oblong hole 64 is provided on the pressure plate 62. A screw 65 is slidably provided in the oblong hole 64. The screw 65 is threadedly installed on the workbench 1. A locking component 66 is threadedly connected to the upper part of the screw 65 above the pressure plate 62.

[0035] Specifically, the movable groove 2 is U-shaped; by setting the first adjustment component 3 and the second adjustment component 4, the distance between the support columns 5 can be adjusted, which is convenient to adjust according to the size of the plate workpiece 12, so that the plate workpiece 12 can be better placed on the support column 5, which is convenient for subsequent bending processing; the clamping component 6 is provided in 4 sets, distributed at the four corners of the worktable 1, to clamp the four corners of the plate workpiece 12, so as to avoid the plate workpiece 12 from deformation, damage, shaking and other problems caused by the oil pressure of the hydraulic equipment;

[0036] Both the support rod 61 and the pressure plate 62 are made of stainless steel. The lower part of the support rod 61 is rotatably connected to the worktable 1, and the upper part of the support rod 61 is threaded, connecting to one end of the pressure plate 62. By rotating the support rod 61, the height of the pressure plate 62 can be adjusted up and down, allowing the pressure plate 62 to press against plate workpieces 12 of different heights. The bottom surface of the pressure plate 62 is always horizontal. This installation structure facilitates the installation and disassembly of the support rod 61 and the pressure plate 62, making the operation simple and convenient. The pad 63 contacts the surface of the plate workpiece 12, ensuring that the edge of the plate workpiece 12 is evenly stressed and the force is relatively dispersed, preventing damage to the plate workpiece 12 and facilitating the pressing and fixing of the plate workpiece 12. The end of the pressure plate 62 near the plate workpiece 12 is arc-shaped, and the pad 63 is round, which helps protect the surface of the plate workpiece 12 and prevents collisions with it. The pad 63 and support column 5 are both made of nylon and are wrapped with a lint-free cloth to prevent damage to the plate workpiece 12 when they come into contact with it. The screw 65 is made of 40Gr steel. The lower part of the screw 65 is threaded to the worktable 1, and the upper part of the screw 65 can pass through the oblong hole 64 and extend to the top of the pressure plate 62. It is connected to the pressure plate 62 through the bottom of the locking piece 66. When the locking plate 62 is engaged, it presses the plate workpiece 12. The screw 65 can be moved after the plate 62 is extended or retracted through the oblong hole 64, so that the locking component 66 can press the plate 62 of different lengths. The locking component 66 includes, but is not limited to, the locking nut, which can be used to lock. A washer fitted on the screw 65 is also provided between the locking component 66 and the surface of the plate 62 to reduce the damage of the locking component 66 to the plate 62.

[0037] Among them, reference Figure 1 and Figure 2 In this embodiment, the workbench 1 is provided with a plurality of first mounting holes 8 for mounting support rods 61.

[0038] Reference Figure 1 and Figure 2 In this embodiment, the workbench 1 is provided with a plurality of second mounting holes 9 for mounting screws 65.

[0039] Specifically, depending on the size of the plate workpiece 12, the support rod 61 can be disassembled and installed into different first mounting holes 8, and the screw 65 can be disassembled and installed into different second mounting holes 9. The pressure plate 62 is located directly above several corresponding second mounting holes 9, which facilitates the movement of the screw 65 after the pressure plate 62 extends and retracts. In this embodiment, one first mounting hole 8 corresponds to three second mounting holes 9, which facilitates the adjustment of the length of the pressure plate 62 according to the size of the plate workpiece 12, and the position of the screw 65 can be adjusted appropriately according to the actual situation.

[0040] Reference Figures 1 to 4 In this embodiment, a laser emitter 10 is installed on one side of the workbench 1, and a laser receiver 11 is placed on the plate workpiece 12.

[0041] Specifically, the laser is infrared. The flatness of the plate workpiece 12 is accurately measured by the laser emitter 10 and the laser receiver 11 (i.e., the bending height of the plate workpiece 12 is accurately measured). The flatness data of each point of the plate workpiece 12 is accurately measured by infrared. By comparing with standard flatness data, the operator can easily adjust the hydraulic scheme of each point of the plate workpiece 12, adjust the pressure and speed of the hydraulic pressure, and operate the hydraulic pressure accurately. This reduces problems caused by human factors during use, improves work efficiency and product quality. At the same time, the operator can flexibly adjust the scheme by referring to the visualized data (the data measured by the laser measuring instrument will be displayed on the screen), so that the operator can more accurately grasp the pressure and speed of the hydraulic pressure during operation, thereby reducing errors caused by human factors.

[0042] Reference Figures 5 to 7 In this embodiment, the pressure plate 62 includes a pressure tail 621 and a pressure head 622 that slides with the pressure tail 621. The pressure tail 621 is threadedly connected to the upper part of the support rod 61. A pad 63 is installed at the bottom of the pressure tail 621. A moving groove 623 is provided in the end of the pressure tail 621 near the pressure head 622. A moving rod 624 is slidably provided in the moving groove 623. One end of the moving rod 624 extends out of the pressure tail 621 and connects to the pressure head 622. A limiting groove 625 is provided at the top of the moving rod 624. A limiting member 626 that can extend into the limiting groove 625 is installed on the pressure tail 621.

[0043] Specifically, the shape of the moving groove 623 matches the shape of the moving rod 624. The bottom surface of the moving rod 624 is flush with the bottom surfaces of the pressure tail 621 and the pressure head 622. The upper part of the moving rod 624 is T-shaped. One end of the moving rod 624 extends out to the pressure tail 621 and connects to the side of the pressure head 622 near the pressure tail 621. A limiting member 626 that can extend into the limiting groove 625 is installed on the side of the pressure tail 621 near the pressure head 622. The limiting member 626 includes, but is not limited to, screws or bolts. The limiting member 626 can move up and down to tighten or loosen the moving rod 624. The limiting member 626 is threadedly connected to the pressure tail 621. When loosened, the moving rod 624 can move along the moving groove 623. The lower part of the limiting member 626 can be in the limiting groove 625. When the distance between the pressure head 622 and the pressure tail 621 is adjusted to the correct position, the limiting member 626 is tightened to limit and fix the moving rod 624.

[0044] Reference Figure 1 and Figure 4 In this embodiment, the first adjustment component 3 includes a first bidirectional lead screw 31 and a second bidirectional lead screw 32 respectively rotatably mounted on both sides of the movable groove 2. Both ends of the first bidirectional lead screw 31 and the second bidirectional lead screw 32 are threadedly connected to a first threaded block 33. A second adjustment component 4 is installed between the first threaded blocks 33 on the first bidirectional lead screw 31 and the second bidirectional lead screw 32. One end of the first bidirectional lead screw 31 passes through the workbench 1 and extends to the outside of the workbench 1 to connect with the output end of the first motor 34. A linkage component 7 is provided between the first bidirectional lead screw 31 and the second bidirectional lead screw 32.

[0045] Specifically, the lower part of the first threaded block 33 is located inside the movable groove 2, and the upper part of the first threaded block 33 is located above the worktable 1 of the movable groove 2. The two ends of the first bidirectional lead screw 31 and the second bidirectional lead screw 32 are threadedly connected to the lower part of the first threaded block 33. There are 4 first threaded blocks 33, and the second adjustment component 4 is installed between the first threaded blocks 33 on the first bidirectional lead screw 31 and the second bidirectional lead screw 32 respectively. The first motor 34 is installed on the horizontal plate, and one end of the horizontal plate is installed on one side of the worktable 1. The first bidirectional lead screw 31 and the second bidirectional lead screw 32 rotate synchronously and in the same direction through the linkage component 7.

[0046] Among them, reference Figure 1 and Figure 2 In this embodiment, the linkage component 7 includes a drive pulley 71 installed on a section of the first bidirectional lead screw 31 extending out of the worktable 1, one end of the second bidirectional lead screw 32 extending out of the worktable 1, and a driven pulley 72 installed on that end, and a belt 73 is sleeved between the drive pulley 71 and the driven pulley 72.

[0047] Specifically, the first motor 34 is started, which drives the first bidirectional lead screw 31 to rotate, thereby causing the two first threaded blocks 33 on the first bidirectional lead screw 31 to move relative to each other (closer or farther apart). At the same time, the first bidirectional lead screw 31 drives the driving pulley 71 to rotate, and the driving pulley 71 drives the driven pulley 72 to rotate through the belt 73. The driven pulley 72 drives the second bidirectional lead screw 32 to rotate, thereby causing the two first threaded blocks 33 on the second bidirectional lead screw 32 to move relative to each other (closer or farther apart).

[0048] Reference Figure 1 and Figure 4 In this embodiment, the second adjustment component 4 includes a third bidirectional lead screw 41 rotatably mounted between the upper parts of two first threaded blocks 33 and a guide rod 42 mounted between the upper parts of the other two first threaded blocks 33. The two ends of the third bidirectional lead screw 41 are threadedly connected to the second threaded blocks 43, and the two ends of the guide rod 42 are slidably provided with sliders 44. The tops of the second threaded blocks 43 and the sliders 44 are both equipped with support columns 5. One end of the third bidirectional lead screw 41 passes through one of the first threaded blocks 33 and is connected to the output end of the second motor 45.

[0049] Specifically, the third bidirectional lead screw 41 is perpendicular to the first bidirectional lead screw 31 and the second bidirectional lead screw 32; the third bidirectional lead screw 41 is arranged parallel to the guide rod 42; there are two second threaded blocks 43 and two sliders 44; similarly, there are four support columns 5; the two ends of the third bidirectional lead screw 41 and the guide rod 42 are connected to the upper part of the first threaded block 33; the second motor 45 is installed on one side of the upper part of the first threaded block 33.

[0050] Among them, reference Figure 1 and Figure 4 In this embodiment, a telescopic rod 46 is connected between the second threaded block 43 and the slider 44, so that the second threaded block 43 and the slider 44 can move simultaneously; there are two telescopic rods 46, preferably, the telescopic rod 46 can be a multi-section telescopic rod, and the telescopic rod 46 can be adjusted by moving the first threaded block 33 on the first bidirectional lead screw 31 and the second bidirectional lead screw 32 relative to each other.

[0051] Start the second motor 45, which drives the third bidirectional lead screw 41 to rotate, thereby causing the second threaded block 43 to move relative to each other (closer or farther away). Through the telescopic rod 46, the slider 44 is moved along the guide rod 42 in sync, thereby adjusting the position of the support column 5.

[0052] Working principle: First, based on the size of the plate workpiece 12, the first motor 34 is started. The first motor 34 drives the first bidirectional lead screw 31 to rotate, thereby causing the two first threaded blocks 33 on the first bidirectional lead screw 31 to move relative to each other (closer or farther apart). At the same time, the first bidirectional lead screw 31 drives the driving pulley 71 to rotate. The driving pulley 71 drives the driven pulley 72 to rotate via the belt 73. The driven pulley 72 drives the second bidirectional lead screw 32 to rotate, thereby causing the two first threaded blocks 33 on the second bidirectional lead screw 32 to move relative to each other (closer or farther apart). Simultaneously, the second motor 45 is started, driving the third bidirectional lead screw 41 to rotate, thereby causing the second threaded blocks 43 to move relative to each other (closer or farther apart). Through the telescopic rod 46, the slider 44 is moved along the guide rod 42 in a synchronized manner, thereby adjusting the position of the support column 5. Then, the plate workpiece... The plate workpiece 12 is placed on the support column 5. At the same time, according to the size of the plate workpiece 12, the support rod 61 is installed into the appropriate first mounting hole 8. After the pressure plate 62 is extended and retracted, the screw 65 is installed into the appropriate second mounting hole 9. By rotating the support rod 61, the height of the pressure plate 62 is adjusted up and down, so that the pressure plate 62 can press the plate workpiece 12 of different heights. When the pad 63 contacts the surface of the plate workpiece 12, the locking part 66 is installed to press the pressure plate 62. The bottom of the locking part 66 contacts the pressure plate 62, locking the pressure plate 62. At the same time, the pressure plate 62 presses the plate workpiece 12. Then, the laser receiver 11 is placed on the plate workpiece 12. The flatness of the plate workpiece 12 is accurately measured by the laser emitter 10 and the laser receiver 11, reducing errors caused by human factors.

[0053] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0054] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A hydraulic clamping fixture for plate-shaped workpieces, comprising a worktable (1) and a plate-shaped workpiece (12), characterized in that, The workbench (1) is provided with a movable slot (2), and a first adjustment component (3) is provided in the movable slot (2). A second adjustment component (4) is installed on the first adjustment component (3). A support column (5) is installed on the second adjustment component (4). A plate workpiece (12) can be placed on the support column (5). Several sets of clamping components (6) are provided around the workbench (1). The clamping assembly (6) includes a support rod (61) rotatably mounted on the workbench (1). One end of the pressure plate (62) is threadedly connected to the upper part of the support rod (61). A pad (63) is installed at the bottom of the other end of the pressure plate (62). The pressure plate (62) is telescopic. A waist-shaped hole (64) is opened on the pressure plate (62). A screw (65) is slidably installed in the waist-shaped hole (64). The screw (65) is threadedly mounted on the workbench (1). A locking member (66) is threadedly connected to the upper part of the screw (65) above the pressure plate (62).

2. The hydraulic clamping fixture for plate-type workpieces according to claim 1, characterized in that, The first adjustment component (3) includes a first bidirectional lead screw (31) and a second bidirectional lead screw (32) respectively rotatably installed on both sides of the movable groove (2). Both ends of the first bidirectional lead screw (31) and the second bidirectional lead screw (32) are threaded with first threaded blocks (33). A second adjustment component (4) is installed between the first threaded blocks (33) on the first bidirectional lead screw (31) and the second bidirectional lead screw (32). One end of the first bidirectional lead screw (31) passes through the worktable (1) and extends to the outside of the worktable (1) to connect with the output end of the first motor (34). A linkage component (7) is provided between the first bidirectional lead screw (31) and the second bidirectional lead screw (32).

3. The hydraulic clamping fixture for plate-type workpieces according to claim 2, characterized in that, The second adjustment assembly (4) includes a third bidirectional lead screw (41) rotatably mounted between the upper parts of two of the first threaded blocks (33) and a guide rod (42) mounted between the upper parts of the other two first threaded blocks (33). The two ends of the third bidirectional lead screw (41) are threadedly connected to the second threaded blocks (43). The two ends of the guide rod (42) are slidably provided with sliders (44). The tops of the second threaded blocks (43) and the sliders (44) are both equipped with support columns (5). One end of the third bidirectional lead screw (41) passes through one of the first threaded blocks (33) and is connected to the output end of the second motor (45).

4. The hydraulic clamping fixture for plate-type workpieces according to claim 2, characterized in that, The linkage assembly (7) includes a drive pulley (71) installed on a section of the first bidirectional lead screw (31) extending out of the worktable (1), one end of the second bidirectional lead screw (32) extending out of the worktable (1), and a driven pulley (72) installed on that end, and a belt (73) is sleeved between the drive pulley (71) and the driven pulley (72).

5. The hydraulic clamping fixture for plate-type workpieces according to claim 3, characterized in that, A telescopic rod (46) is connected between the second threaded block (43) and the slider (44).

6. The hydraulic clamping fixture for plate-type workpieces according to claim 1, characterized in that, The pressure plate (62) includes a pressure tail (621) and a pressure head (622) that slides with the pressure tail (621). The pressure tail (621) is threaded to the upper part of the support rod (61). A pad (63) is installed at the bottom of the pressure tail (621). A moving groove (623) is opened in the end of the pressure tail (621) near the pressure head (622). A moving rod (624) is slidably arranged in the moving groove (623). One end of the moving rod (624) extends out of the pressure tail (621) and connects to the pressure head (622). A limiting groove (625) is opened at the top of the moving rod (624). A limiting member (626) that can extend into the limiting groove (625) is installed on the pressure tail (621).

7. The hydraulic clamping fixture for plate-type workpieces according to claim 1, characterized in that, The workbench (1) is provided with a number of first mounting holes (8) for mounting support rods (61).

8. The hydraulic clamping fixture for plate-type workpieces according to claim 1, characterized in that, The workbench (1) is provided with several second mounting holes (9) for mounting screws (65).

9. The hydraulic clamping fixture for plate-type workpieces according to claim 1, characterized in that, A laser emitter (10) is installed on one side of the workbench (1), and a laser receiver (11) is placed on the plate workpiece (12).

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