Hydraulic clamp of machining center

Abstract

The utility model relates to a machining center hydraulic clamp which comprises a mounting plate and a pull rod arranged in the middle of the mounting plate in a sliding mode, a supporting plate is fixedly arranged on one side of the mounting plate, sliding sleeve bases are symmetrically arranged on the supporting plate, a threaded rod is arranged in the sliding sleeve bases in a sliding mode, a pressing plate is arranged on the threaded rod in a sleeved mode, and a spring is arranged between the pressing plate and the sliding sleeve bases. A guide plate connected with the pull rod is arranged at the bottom of the supporting plate in a sliding mode, an inclined kidney-shaped hole is formed in the guide plate, a transverse rod in sliding fit with the kidney-shaped hole is rotatably arranged at the bottom of the screw rod, and a plate is pressed on the supporting plate through the pressing plate and can be clamped conveniently and rapidly. The problem that an existing clamp structure cannot stably clamp and limit a workpiece is effectively solved, the plate material clamping speed is greatly increased, and therefore the machining efficiency of a machining center is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a hydraulic clamp for a machining center. Background Art

[0002] A machining center is an automated machine tool equipped with a program-controlled system. This machine tool logically processes programs defined by control codes or other symbolic instructions, decodes them, and transmits them as coded digital representations via an information carrier to a numerical control device. After processing, the numerical control device issues various control signals to control the machine's movements, automatically producing parts to the shape and size specified in the drawings.

[0003] At present, in order to expand the application scope of machining centers and enable complex processing tasks to be completed smoothly, a fourth axis is often added to the workbench. Although the fixture on the fourth axis can effectively clamp workpiece blanks such as cylinders and pipes, when the part of the workpiece blank that needs to be clamped is a non-cylindrical structure such as a plate, the structure of the existing fixture cannot stably clamp and limit the workpiece. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a hydraulic clamp for a machining center.

[0005] The purpose of the utility model can be achieved through the following technical scheme: a hydraulic clamp for a machining center, comprising a mounting plate, a pull rod slidably arranged in the middle of the mounting plate, a support plate fixedly provided on one side of the mounting plate, a sliding sleeve seat symmetrically provided on the support plate, a screw slidingly provided in the sliding sleeve seat, a pressure plate sleeved on the screw, a spring provided between the pressure plate and the sliding sleeve seat, a guide plate connected to the pull rod slidingly provided at the bottom of the support plate, an inclined waist hole provided on the guide plate, and a cross bar rotatably provided at the bottom of the screw to slide with the waist hole.

[0006] Preferably, a positioning pin is provided on the support plate.

[0007] Preferably, a guide groove is provided on the pressing plate, and a guide pin that cooperates with the guide groove is provided on the sliding sleeve seat.

[0008] Preferably, the guide groove includes a spiral section and a vertical section that are connected to each other, and the spiral section is located below the vertical section.

[0009] Preferably, the top of the screw is threadedly connected with an adjusting nut.

[0010] Preferably, a slide rail is provided at the bottom of the support plate, and the slide rail is slidably connected to the guide plate.

[0011] The beneficial effects of the present invention are as follows: the present invention presses the plate onto the support plate through the pressure plate, which can clamp the plate conveniently and quickly, effectively solving the problem that the existing clamping structure cannot stably clamp and limit the workpiece, greatly improving the speed of clamping plate materials, thereby improving the processing efficiency of the machining center. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention is further described with reference to the accompanying drawings. However, the embodiments in the accompanying drawings do not constitute any limitation to the present invention. A person skilled in the art can obtain other drawings based on the following drawings without creative effort.

[0013] Figure 1 This is a structural diagram of a hydraulic clamp for a machining center according to the present utility model.

[0014] Figure 2 This is another structural schematic diagram of a hydraulic clamp for a machining center according to the present utility model.

[0015] Figure 3 This is a cross-sectional view of a sliding sleeve seat of a hydraulic clamp for a machining center according to the utility model.

[0016] Figure 4 The utility model is a schematic diagram of the pressure plate structure of a hydraulic clamp for a machining center.

[0017] Figure 5 This is a cross-sectional view of a hydraulic clamp for a machining center according to the present utility model.

[0018] The numbers shown in the figure represent: 1. Mounting plate; 2. Pull rod; 3. Support plate; 4. Sleeve seat; 401. Guide pin; 5. Screw; 501. Adjusting nut; 6. Pressure plate; 601. Guide groove; 602. Vertical section; 603. Spiral section; 7. Spring; 8. Guide plate; 9. Waist hole; 10. Cross bar; 11. Positioning pin; 12. Slide rail. DETAILED DESCRIPTION

[0019] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0020] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0021] The following will be combined with specific embodiments to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0022] See Figures 1 to 5 As shown, the structure of the utility model is as follows: a hydraulic clamp for a machining center, comprising a mounting plate 1, a pull rod 2 slidably arranged in the middle of the mounting plate 1, a support plate 3 fixedly arranged on one side of the mounting plate 1, a sliding seat 4 symmetrically provided on the support plate 3, a screw 5 slidingly provided in the sliding seat 4, a pressure plate 6 sleeved on the screw 5, a spring 7 provided between the pressure plate 6 and the sliding seat 4, a guide plate 8 connected to the pull rod 2 slidingly provided at the bottom of the support plate 3, an inclined waist hole 9 opened on the guide plate 8, and a screw 5 rotating at the bottom thereof with respect to the waist hole 9 The sliding-fitting cross bar 10, specifically, fixes the mounting plate 1 on the machine tool, and then connects the pull rod 2 to the hydraulic cylinder on the machine tool. The hydraulic cylinder then pushes the pull rod 2 forward, causing the cross bar 10 to move up along the waist hole 9, driving the screw 5 to move up. At the same time, the pressure plate 6 follows the screw 5 to move up under the action of the spring 7, and then the plate is placed on the support plate 3. The hydraulic cylinder then drives the pull rod 2 to move backward, causing the cross bar 10 to move down along the waist hole 9, driving the screw 5 to move down, and the screw 5 drives the pressure plate 6 to move down to press the plate tightly on the support plate 3.

[0023] like Figure 1 、 Figure 2 As shown, a positioning pin 11 is provided on the support plate 3. Specifically, the positioning pin 11 is used to position the plate.

[0024] like Figure 3 、 Figure 4 As shown, a guide groove 601 is provided on the pressure plate 6, and a guide pin 401 that cooperates with the guide groove 601 is provided on the sliding sleeve seat 4. Specifically, when the pressure plate 6 moves upward, the guide pin 401 cooperates with the guide groove 601 to rotate the pressure plate 6 to one side to facilitate loading and unloading of the plate. When the pressure plate 6 moves downward to press the plate, the guide pin 401 cooperates with the guide groove 601 to rotate the pressure plate 6 back to the top of the plate, pressing the plate onto the support plate 3.

[0025] like Figure 4 As shown, the guide groove 601 includes a connected spiral section 602 and a vertical section 603. The spiral section 602 is located below the vertical section 603. Specifically, when the spiral section 602 cooperates with the guide pin 401, the pressure plate 6 rotates. When the vertical section 603 cooperates with the guide pin 401, the pressure plate 6 moves vertically up or down.

[0026] like Figure 2 、 Figure 3As shown, an adjusting nut 501 is threadedly connected to the top of the screw rod 5 . Specifically, by rotating the adjusting nut 501 , the preset height of the pressing plate 6 is changed, thereby adjusting the pressing force of the pressing plate 6 .

[0027] like Figure 5 As shown, a slide rail 12 is provided at the bottom of the support plate 3, and the slide rail 12 is slidably connected to the guide plate 8. Specifically, the slide rail 12 is used to improve the smoothness of the guide plate 8 when moving, and to avoid the guide plate 8 from getting stuck during clamping.

[0028] During specific use, the mounting plate 1 is fixed on the machine tool, and then the pull rod 2 is connected to the hydraulic cylinder on the machine tool. Then the hydraulic cylinder pushes the pull rod 2 forward, so that the cross bar 10 moves up along the waist hole 9, driving the screw 5 to move up. At the same time, the pressure plate 6 follows the screw 5 to move up under the action of the spring 7, and then the plate is placed on the support plate 3. Then the hydraulic cylinder drives the pull rod 2 to move backward, so that the cross bar 10 moves down along the waist hole 9, driving the screw 5 to move down, and the screw 5 then drives the pressure plate 6 to move down to press the plate tightly on the support plate 3.

[0029] The above further describes the present invention with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the present invention. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the present invention.

Claims

1. A hydraulic clamp for a machining center, characterized by: The utility model comprises a mounting plate (1), a pull rod (2) slidably arranged in the middle of the mounting plate (1), a support plate (3) is fixedly provided on one side of the mounting plate (1), a sliding seat (4) is symmetrically provided on the support plate (3), a screw rod (5) is slidably provided in the sliding seat (4), a pressure plate (6) is sleeved on the screw rod (5), a spring (7) is provided between the pressure plate (6) and the sliding seat (4), a guide plate (8) connected to the pull rod (2) is slidably provided at the bottom of the support plate (3), an inclined waist hole (9) is opened on the guide plate (8), and a cross rod (10) slidably matched with the waist hole (9) is rotatably provided at the bottom of the screw rod (5).

2. The hydraulic clamp for a machining center according to claim 1, characterized in that: A positioning pin (11) is provided on the support plate (3).

3. The hydraulic clamp for a machining center according to claim 1, characterized in that: A guide groove (601) is provided on the pressing plate (6), and a guide pin (401) that cooperates with the guide groove (601) is provided on the sliding sleeve seat (4).

4. The hydraulic clamp for a machining center according to claim 3, characterized in that: The guide groove (601) comprises a spiral section (602) and a vertical section (603) that are connected to each other, and the spiral section (602) is located below the vertical section (603).

5. The hydraulic clamp for a machining center according to claim 1, characterized in that: The top of the screw rod (5) is threadedly connected with an adjusting nut (501).

6. The hydraulic clamp for a machining center according to claim 1, characterized in that: A slide rail (12) is provided at the bottom of the support plate (3), and the slide rail (12) is slidably connected to the guide plate (8).

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