Quick clamping positioning hydraulic fixture

Abstract

This utility model discloses a hydraulic clamping fixture for rapid clamping and positioning, specifically relating to the field of stamping equipment technology. It includes a base plate with two sliding grooves, each containing a sliding block slidably connected to it. A chuck is fixed to the top of each sliding block. A pushing mechanism is located on the right side of the base plate, used to push the sliding blocks along the grooves. A fixing plate is fixed to the top of the base plate, with a sliding rod slidably connected through it. The sliding rod is connected to the sliding block on the front side, and a threaded groove is formed on its outer side. A knob is connected to the outer side of the sliding rod via the threaded groove. A straight groove is formed on the top of the sliding rod, with graduation lines inside. A first pressure-sensitive switch is installed on the right side of the fixing plate, and a positioning mechanism is located on the right side of the base plate. This utility model, by using a sliding rod in conjunction with the first pressure-sensitive switch, allows the cylinder to move the chuck to a preset distance, after which the knob precisely triggers the first pressure-sensitive switch, thereby controlling the cylinder to stop in real time via a controller.

Description

Technical Field

[0001] This utility model relates to the field of stamping equipment technology, and more specifically, to a hydraulic clamp for quick clamping and positioning. Background Technology

[0002] Hydraulic clamps are mechanical devices that utilize a hydraulic system to generate clamping force. Through hydraulic cylinders driving clamping elements, they quickly, stably, and with high precision fixation of workpieces. Their core advantages lie in their large clamping force, smooth operation, and high adjustability. Suitable for mass production or clamping heavy workpieces, they are widely used in machine tools and other fields. Hydraulic clamps can significantly improve production efficiency, reduce manual intervention, and ensure the safety and consistency of the machining process.

[0003] Existing hydraulic clamps lack sufficient precision in controlling the stroke of the cylinders during use, which can easily lead to clamping failure or equipment damage. If the stroke is not complete, the clamping force is insufficient, and the workpiece may loosen, affecting the machining accuracy. If the stroke exceeds the limit, the cylinder may be overloaded, causing wear of the seals or deformation of the mechanical structure. Traditional hydraulic systems lack precise stroke feedback and adjustment mechanisms, making it difficult to monitor and adjust the piston position in real time, which affects clamping stability and equipment life.

[0004] In summary, to improve the stability and safety of hydraulic clamps, it is necessary to address the problem of insufficient accuracy in cylinder stroke control, so that the clamping force can accurately match the processing requirements of different workpieces, thereby avoiding clamping failure or equipment overload, ensuring processing accuracy, and extending the service life of the clamps. Utility Model Content

[0005] The problem to be solved by the quick clamping and positioning hydraulic clamp provided by this utility model is that the existing hydraulic clamps are difficult to control the stroke of the oil cylinder accurately during use. Insufficient stroke will result in insufficient clamping force and the stroke process may easily cause damage to the equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic clamp for quick clamping and positioning, comprising a base plate, two sliding grooves on the base plate, a slide block slidably connected inside each of the two sliding grooves, a chuck fixed to the top of the slide block, a pushing mechanism on the right side of the base plate for pushing the slide block to slide along the sliding groove, a fixing plate fixed to the top of the base plate, a slide rod slidably connected through the fixing plate, the slide rod being connected to the slide block on the front side, a threaded groove on the outer side of the slide rod, a knob connected to the outer side of the slide rod through the threaded groove, a straight groove on the top of the slide rod, a scale line inside the straight groove, a first pressure-sensitive switch installed on the right side of the fixing plate, and a positioning mechanism on the right side of the base plate.

[0007] In a preferred embodiment, the pushing mechanism includes a driving component and a linkage component. The driving component is used to push the linkage component to move left and right, and the linkage component is used to connect the two slides.

[0008] In a preferred embodiment, the drive assembly includes a mounting base fixed to the top of the substrate, and a hydraulic cylinder is mounted on the right side of the mounting base.

[0009] In a preferred embodiment, the linkage component includes a connecting plate fixed to the output end of the hydraulic cylinder. The hydraulic cylinder is used to drive the connecting plate to move left and right. Two positioning plates are fixed to the left side of the connecting plate, and the positioning plates are fixedly connected to the corresponding slides.

[0010] In a preferred embodiment, the positioning mechanism includes a support component and a limiting component, wherein the support component is used to mount the limiting component, and the limiting component is used to assist the stroke of the positioning cylinder.

[0011] In a preferred embodiment, the support assembly includes a support plate mounted on the left side of the substrate, and two legs are fixed to the left side of the support plate.

[0012] In a preferred embodiment, the limiting component includes a sleeve installed on the left side of the support plate, a sliding column slidably connected inside the sleeve, the right end of the sliding column penetrating the support plate, a spring fixed to the left end of the sliding column, the other end of the spring being fixedly connected to the sleeve, two limiting rods fixed to the right end of the sliding column, the limiting rods being slidably connected to the sleeve, and a second pressure-sensitive switch installed on the left side of the sliding column.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention utilizes a sliding rod in conjunction with a first pressure-sensitive switch. After the hydraulic cylinder moves the chuck to a preset distance, a knob precisely triggers the first pressure-sensitive switch, thereby controlling the hydraulic cylinder to stop in real time via a controller. This design effectively solves the problem of inaccurate stroke control in traditional hydraulic clamps, avoiding processing errors or equipment damage caused by insufficient clamping force or overload. Through automated stroke monitoring and feedback adjustment, it not only improves clamping stability but also reduces the need for manual intervention, significantly improving production efficiency and safety while extending the clamp's service life. It is suitable for high-precision, high-volume processing scenarios. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a three-dimensional structural diagram of the slide bar of this utility model.

[0017] Figure 3 This is a three-dimensional structural diagram of the slide of this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the support plate of this utility model.

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of the spring of this utility model.

[0020] The attached figures are labeled as follows: 1. Base plate; 2. Slide groove; 3. Slide block; 4. Clamp; 51. Fixed base; 52. Hydraulic cylinder; 53. Connecting plate; 54. Positioning plate; 6. Fixed plate; 7. Slide rod; 8. Threaded groove; 9. Knob; 10. Straight groove; 11. First pressure-sensitive switch; 121. Support plate; 122. Support leg; 123. Sleeve; 124. Slide column; 125. Spring; 126. Second pressure-sensitive switch; 127. Limiting rod. Detailed Implementation

[0021] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0022] Refer to the instruction manual appendix Figures 1 to 5 A hydraulic clamp for quick clamping and positioning includes a base plate 1. Two slide grooves 2 are formed on the base plate 1. A slide block 3 is slidably connected inside each of the two slide grooves 2. A chuck 4 is fixed on the top of the slide block 3. A pushing mechanism is provided on the right side of the base plate 1. The pushing mechanism is used to push the slide block 3 to slide along the slide groove 2. A fixing plate 6 is fixed on the top of the base plate 1. A slide rod 7 is slidably connected through the fixing plate 6. The slide rod 7 is connected to the slide block 3 on the front side. A threaded groove 8 is formed on the outer side of the slide rod 7. A knob 9 is connected to the outer side of the slide rod 7 through the threaded groove 8. A straight groove 10 is formed on the top of the slide rod 7. A scale line is provided inside the straight groove 10. A first pressure-sensitive switch 11 is installed on the right side of the fixing plate 6. A positioning mechanism is provided on the right side of the base plate 1.

[0023] It should be noted that when the pushing mechanism is in operation, it can push the slide block 3 to slide inside the slide groove 2. The slide block 3 is rigidly connected to the chuck 4, so that the chuck 4 can move synchronously. The mold is placed on the base plate 1. After the chuck 4 moves a certain stroke, it cooperates with the positioning mechanism to clamp the mold. Before starting the hydraulic cylinder 52, the operator can adjust the position of the knob 9 on the slide rod 7 according to the mold size and ensure the adjustment accuracy according to the scale. When the slide block 3 moves, it drives the slide rod 7 to slide along the fixed plate 6. When the chuck 4 clamps the mold, the knob 9 can just contact the first pressure-sensitive switch 11, so that the hydraulic cylinder 52 is stopped by the external controller.

[0024] Refer to the instruction manual appendix Figures 1 to 3The driving mechanism includes a driving component and a linkage component. The driving component is used to drive the linkage component to move left and right, and the linkage component is used to connect the two slides 3.

[0025] It should be noted that when the drive component is running, it can drive the two slide blocks 3 to move synchronously through the linkage component.

[0026] Refer to the instruction manual appendix Figure 1 and Figure 2 The drive assembly includes a mounting base 51 fixed to the top of the base plate 1, and a hydraulic cylinder 52 is mounted on the right side of the mounting base 51.

[0027] It should be noted that the fixed base 51 is rigidly connected to the base plate 1, and the output end of the hydraulic cylinder 52 passes through the fixed base 51.

[0028] Refer to the instruction manual appendix Figure 1 and Figure 2 The linkage component includes a connecting plate 53 fixed to the output end of the hydraulic cylinder 52. The hydraulic cylinder 52 is used to drive the connecting plate 53 to move left and right. Two positioning plates 54 are fixed on the left side of the connecting plate 53. The positioning plates 54 are fixedly connected to the corresponding slides 3.

[0029] It should be noted that when the hydraulic cylinder 52 is in operation, it pushes the connecting plate 53 to move, thereby driving the two slide blocks 3 to move synchronously through the positioning plate 54.

[0030] Refer to the instruction manual appendix Figures 1 to 5 The positioning mechanism includes a support component and a limiting component. The support component is used to install the limiting component, and the limiting component is used to assist the stroke of the positioning cylinder 52.

[0031] It should be noted that the limiting component is installed on the support component, and the support component cooperates with the chuck 4 to clamp and position the mold.

[0032] Refer to the instruction manual appendix Figure 1 and Figure 4 The support assembly includes a support plate 121 mounted on the left side of the base plate 1, and two legs 122 are fixed on the left side of the support plate 121.

[0033] It should be noted that the bottom of the support leg 122 is fixed to the ground, which can improve the support strength of the support plate 121.

[0034] Refer to the instruction manual appendix Figure 2 and Figure 5The limiting assembly includes a sleeve 123 installed on the left side of the support plate 121. A sliding column 124 is slidably connected inside the sleeve 123. The right end of the sliding column 124 passes through the support plate 121. One end of a spring 125 is fixed to the left end of the sliding column 124. The other end of the spring 125 is fixedly connected to the sleeve 123. Two limiting rods 127 are fixed to the right end of the sliding column 124. The limiting rods 127 are slidably connected to the sleeve 123. A second pressure-sensitive switch 126 is installed on the left side of the sliding column 124.

[0035] It should be noted that when the mold is clamped, it will press the slide column 124, causing the slide column 124 to move to the left along the inner wall of the sleeve 123. When the right end of the slide column 124 is flush with the support plate 121, the second pressure-sensitive switch 126 is triggered by the inner wall of the sleeve 123, thus working in conjunction with the first pressure-sensitive switch 11 to ensure the accuracy of the stroke of the hydraulic cylinder 52. After the mold is released, the spring 125 will push the slide column 124 to reset, preparing for the next clamping.

[0036] Working principle: The hydraulic cylinder 52 pushes the connecting plate 53 to move the positioning plate 54, causing the slide block 3 to slide along the slide groove 2 of the base plate 1, driving the chuck 4 to clamp the mold. The mold is pressed and pushes the slide column 124 on the support plate 121 to the left. When the right end of the slide column 124 is flush with the support plate 121, the inner wall of the sleeve 123 triggers the second pressure-sensitive switch 126. At the same time, the front slide block 3 drives the pre-adjustment knob 9 to move through the slide rod 7. At the moment of clamping, the first pressure-sensitive switch 11 of the fixing plate 6 is triggered. The signals of the two switches are linked and transmitted to the controller, which immediately stops the operation of the hydraulic cylinder 52, thereby accurately maintaining the clamping force. After the processing is completed, the hydraulic cylinder 52 retracts, and the spring 125 in the sleeve 123 pushes the slide column 124 to reset, completing the cycle.

[0037] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A hydraulic clamping fixture for rapid clamping and positioning, characterized in that: The substrate (1) includes two grooves (2) on the substrate (1), and a slide block (3) is slidably connected inside each groove (2). A clamp (4) is fixed on the top of the slide block (3). A pushing mechanism is provided on the right side of the substrate (1). The pushing mechanism is used to push the slide block (3) to slide along the groove (2). A fixing plate (6) is fixed on the top of the substrate (1). A slide rod (7) is slidably connected through the fixing plate (6). The slide rod (7) is connected to the slide block (3) on the front side. A threaded groove (8) is provided on the outside of the slide rod (7). A knob (9) is connected to the outside of the slide rod (7) through the threaded groove (8). A straight groove (10) is provided on the top of the slide rod (7). A scale line is provided inside the straight groove (10). A first pressure-sensitive switch (11) is installed on the right side of the fixing plate (6). A positioning mechanism is provided on the right side of the substrate (1).

2. The hydraulic clamping fixture for rapid clamping and positioning according to claim 1, characterized in that: The driving mechanism includes a driving component and a linkage component. The driving component is used to drive the linkage component to move left and right, and the linkage component is used to connect the two slides (3).

3. The hydraulic clamping fixture for rapid clamping and positioning according to claim 2, characterized in that: The drive assembly includes a mounting base (51) fixed to the top of the base plate (1), and a hydraulic cylinder (52) is mounted on the right side of the mounting base (51).

4. The hydraulic clamping fixture for rapid clamping and positioning according to claim 3, characterized in that: The linkage component includes a connecting plate (53) fixed at the output end of the hydraulic cylinder (52). The hydraulic cylinder (52) is used to drive the connecting plate (53) to move left and right. Two positioning plates (54) are fixed on the left side of the connecting plate (53). The positioning plates (54) are fixedly connected to the corresponding slides (3).

5. The hydraulic clamping fixture for rapid clamping and positioning according to claim 4, characterized in that: The positioning mechanism includes a support component and a limit component. The support component is used to install the limit component, and the limit component is used to assist the stroke of the positioning cylinder (52).

6. The hydraulic clamping fixture for rapid clamping and positioning according to claim 5, characterized in that: The support assembly includes a support plate (121) mounted on the left side of the base plate (1), and two legs (122) are fixed on the left side of the support plate (121).

7. The hydraulic clamping fixture for rapid clamping and positioning according to claim 6, characterized in that: The limiting assembly includes a sleeve (123) installed on the left side of the support plate (121). A sliding column (124) is slidably connected inside the sleeve (123). The right end of the sliding column (124) passes through the support plate (121). One end of a spring (125) is fixed to the left end of the sliding column (124). The other end of the spring (125) is fixedly connected to the sleeve (123). Two limiting rods (127) are fixed to the right end of the sliding column (124). The limiting rods (127) are slidably connected to the sleeve (123). A second pressure-sensitive switch (126) is installed on the left side of the sliding column (124).

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