Clamping device for vertical machining center

Abstract

The utility model relates to the technical field of vertical machining centers, in particular to a clamping device for a vertical machining center, which comprises a base, moving blocks are connected to two sides of the top of the base, convex plates are fixedly connected to two sides of opposite surfaces of the two moving blocks, and a clamping block is connected between the two convex plates. Fixing assemblies are fixedly connected to the front side and the rear side of the moving block, positioning holes are formed in the front side and the rear side of the clamping block, the output ends of the fixing assemblies are movably inserted into the positioning holes, each fixing assembly comprises a U-shaped rod, and each U-shaped rod is fixedly connected to the outer side of the corresponding convex plate. According to the clamping device, the clamping blocks are convenient to maintain and replace, meanwhile, due to the detachable design of the clamping blocks, the clamping device can adapt to workpieces of different shapes and sizes, the universality and adaptability of the clamping device are improved, and the cost for redesigning or replacing the whole clamping device due to the change of the workpieces is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vertical machining centers, in particular to a clamping device for a vertical machining center. Background Art

[0002] The machining center has the ability to automatically exchange machining tools. By installing tools for different purposes on the tool magazine, the machining tools on the spindle can be changed through the automatic tool changing device in one clamping to achieve multiple machining functions.

[0003] Machining centers generally require the use of clamping devices to clamp the workpiece to be processed. For example, publication number CN213531825U discloses a clamping device for a vertical high-speed machining center. The workpiece to be processed is placed on a fixed platform, and the threaded rod is rotated by a handle. The threaded rod drives two clamping blocks to slide in a movable groove and approach each other until the workpiece is clamped. Then, the clamping block is designed without fully considering the need for disassembly, resulting in a complex structure or an unreasonable connection method of the clamping block, making disassembly difficult. When the clamping block fails or is damaged, it is inconvenient to repair and replace it. Once the shape or size of the workpiece changes, the entire clamping device may need to be redesigned, which will increase the design and production costs. In view of this, a clamping device for a vertical machining center is designed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a clamping device for a vertical machining center, which solves the problem in the prior art that many clamping blocks do not fully consider the need for disassembly when they are designed, resulting in complex structures or unreasonable connection methods of the clamping blocks, making disassembly difficult. When the clamping blocks fail or are damaged, repair and replacement are inconvenient, and once the shape or size of the workpiece changes, the entire clamping device may need to be redesigned, which will increase the design and production costs.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a clamping device for a vertical machining center, comprising a base, both sides of the top of the base are connected with moving blocks, both sides of the opposite surfaces of the two moving blocks are fixedly connected with convex plates, a clamping block is connected between the two convex plates, the front and rear sides of the moving block are fixedly connected with fixed components, the front and rear sides of the clamping block are provided with positioning holes, and the output end of the fixed component is movably plugged into the inside of the positioning hole;

[0006] The fixing assembly includes a U-shaped rod, which is fixedly connected to the outer side of the convex plate, and the inner side of the U-shaped rod is fixedly connected to a support rod, a movable sleeve on the outer surface of the support rod is provided with a thrust spring, and a sliding sleeve on the outer surface of the support rod is provided with a locking sleeve, and one end of the locking sleeve passes through the convex plate and is movably inserted into the inside of the positioning hole.

[0007] Furthermore, one end of the locking sleeve close to the support rod is fixedly connected to a limit plate, and the limit plate sliding sleeve is arranged on the outer surface of the support rod.

[0008] Furthermore, one end of the thrust spring abuts against the inner side of the U-shaped rod, and the other end of the thrust spring abuts against the limit plate.

[0009] Furthermore, a mounting block is fixedly connected to one side of the base, a driving motor is fixedly connected to the outer side of the mounting block, a first ball screw is fixedly connected to the output end of the driving motor, a second ball screw is fixedly connected to one end of the first ball screw, ball nuts are threadedly sleeved on the outer surfaces of the first ball screw and the second ball screw, a fixing rod is fixedly connected to the top of the ball nut, a straight groove is penetrated through the top of the base, and the top of the fixing rod passes through the straight groove and is fixedly connected to the bottom of the moving block.

[0010] Furthermore, the thread directions of the outer surfaces of the first ball screw and the second ball screw are opposite.

[0011] Furthermore, guide grooves are provided on both sides of the interior of the moving block, and guide rails are fixedly connected to the front and rear sides of the base, and the outer surface of the guide rail is slidably connected to the inner side wall of the guide groove.

[0012] Furthermore, an inclined groove is provided on the back side of the base, and the inclined groove is connected to the straight groove.

[0013] By means of the above technical solution, the utility model provides a clamping device for a vertical machining center, which has at least the following beneficial effects:

[0014] 1. The clamping device for the vertical machining center can disengage one end of the locking sleeve from the positioning hole on the clamping block by pulling the locking sleeve outward, and the locking sleeve slides on the support rod and contracts the thrust spring. The clamping block can be removed by pulling it, and the clamping block is placed between the two convex plates, and the locking sleeve is released. Under the action of the rebound force of the thrust spring, one end of the locking sleeve will pass through the convex plate and be movably inserted into the positioning hole on the clamping block, which is convenient for the maintenance and replacement of the clamping block. At the same time, the detachable design of the clamping block enables the clamping device to adapt to workpieces of different shapes and sizes, increases the versatility and adaptability of the clamping device, and reduces the cost of redesigning or replacing the entire clamping device due to changes in the workpiece.

[0015] 2. The clamping device of the vertical machining center drives the motor to rotate synchronously. Since the threads on the outer surfaces of the first ball screw and the second ball screw are in opposite directions, the two ball nuts can be moved to opposite sides. The two moving blocks are brought close to each other through the fixing rod, and the workpiece is clamped and fixed by the clamping block, which facilitates the processing of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0017] Figure 1 This is the right side view of the structure of the utility model;

[0018] Figure 2 This is a left view of the structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the local structure of the utility model;

[0020] Figure 4 This is a bottom view of the movable block structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the clamping block of the utility model;

[0022] Figure 6 This is a schematic diagram of the structure of the fixing component of the utility model.

[0023] In the figure: 1. base; 2. moving block; 3. convex plate; 4. fixing assembly; 401. U-shaped rod; 402. support rod; 403. limit plate; 404. thrust spring; 405. locking sleeve; 5. clamping block; 6. positioning hole; 7. mounting block; 8. driving motor; 9. first ball screw; 10. second ball screw; 11. ball nut; 12. fixing rod; 13. slot. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-6 A clamping device for a vertical machining center includes a base 1, both sides of the top of the base 1 are connected with moving blocks 2, both sides of the opposite surfaces of the two moving blocks 2 are fixedly connected with convex plates 3, a clamping block 5 is connected between the two convex plates 3, the front and rear sides of the moving block 2 are fixedly connected with a fixing component 4, the front and rear sides of the clamping block 5 are provided with a positioning hole 6, and the output end of the fixing component 4 is movably plugged into the inside of the positioning hole 6;

[0026] The fixing assembly 4 includes a U-shaped rod 401, which is fixedly connected to the outer side of the convex plate 3, and a support rod 402 is fixedly connected to the inner side of the U-shaped rod 401. A thrust spring 404 is movably sleeved on the outer surface of the support rod 402, and a locking sleeve 405 is slidably sleeved on the outer surface of the support rod 402. One end of the locking sleeve 405 passes through the convex plate 3 and is movably inserted into the interior of the positioning hole 6.

[0027] One end of the locking sleeve 405 close to the support rod 402 is fixedly connected to the limit plate 403, and the limit plate 403 is slidably sleeved on the outer surface of the support rod 402. One end of the thrust spring 404 abuts against the inner side of the U-shaped rod 401, and the other end of the thrust spring 404 abuts against the limit plate 403. By pulling the locking sleeve 405 outward, one end of the locking sleeve 405 can be disengaged from the positioning hole 6 on the clamping block 5, and the locking sleeve 405 slides on the support rod 402, causing the thrust spring 404 to contract. The clamping block 5 can be removed by pulling it, and the clamping block 5 is placed between the two convex plates 3, and the locking sleeve 405 is released. Under the action of the rebound force of the thrust spring 404, one end of the locking sleeve 405 will pass through the convex plate 3 and be movably inserted into the positioning hole 6 on the clamping block 5, which is convenient for the maintenance and replacement of the clamping block 5. At the same time, the detachable design of the clamping block 5 enables the clamping device to adapt to workpieces of different shapes and sizes, increases the versatility and adaptability of the clamping device, and reduces the cost of redesigning or replacing the entire clamping device due to changes in the workpiece.

[0028] A mounting block 7 is fixedly connected to one side of the base 1, and a driving motor 8 is fixedly connected to the outer side of the mounting block 7. A first ball screw 9 is fixedly connected to the output end of the driving motor 8, and a second ball screw 10 is fixedly connected to one end of the first ball screw 9. The threads of the outer surfaces of the first ball screw 9 and the second ball screw 10 are in opposite directions. The outer surfaces of the first ball screw 9 and the second ball screw 10 are both threadedly sleeved with ball nuts 11, and a fixing rod 12 is fixedly connected to the top of the ball nut 11. A through-slot 13 is provided on the top of the base 1, and the top of the fixing rod 12 passes through the slot 13 and is fixedly connected to the bottom of the moving block 2. When the driving motor 8 is running, the first ball screw 9 and the second ball screw 10 can rotate synchronously. Since the threads of the outer surfaces of the first ball screw 9 and the second ball screw 10 are in opposite directions, the two ball nuts 11 can be moved to the opposite side, and the two moving blocks 2 are brought close to each other through the fixing rod 12. The workpiece is clamped and fixed by the clamping block 5, which is convenient for processing the workpiece.

[0029] Guide grooves are provided on both sides of the moving block 2, and guide rails are fixedly connected to the front and rear sides of the base 1, and the outer surface of the guide rails is slidably connected to the inner wall of the guide groove. An inclined groove is provided on the back of the base 1, and the inclined groove is connected to the straight groove 13. If the debris during the processing of the workpiece enters the straight groove 13, it will be discharged through the inclined groove.

[0030] Working principle: By pulling the locking sleeve 405 outward, one end of the locking sleeve 405 can be disengaged from the positioning hole 6 on the clamping block 5, and the locking sleeve 405 slides on the support rod 402, and the thrust spring 404 contracts, and the clamping block 5 can be removed by pulling it, and the clamping block 5 is placed between the two convex plates 3, and the locking sleeve 405 is released. Under the action of the rebound force of the thrust spring 404, one end of the locking sleeve 405 will pass through the convex plate 3 and be movably plugged into the positioning hole 6 on the clamping block 5, which is convenient for the maintenance and replacement of the clamping block 5;

[0031] When in use, the driving motor 8 is running, which can make the first ball screw 9 and the second ball screw 10 rotate synchronously. Since the thread directions of the outer surfaces of the first ball screw 9 and the second ball screw 10 are opposite, the two ball nuts 11 can be moved to the opposite side, and the two moving blocks 2 are brought close to each other through the fixing rod 12, and the workpiece is clamped and fixed by the clamping block 5, which facilitates the processing of the workpiece.

[0032] It should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping device for a vertical machining center, comprising a base (1), characterized in that: Both sides of the top of the base (1) are connected to moving blocks (2), both sides of the opposite surfaces of the two moving blocks (2) are fixedly connected to convex plates (3), a clamping block (5) is connected between the two convex plates (3), the front and rear sides of the moving block (2) are fixedly connected to fixing components (4), the front and rear sides of the clamping block (5) are provided with positioning holes (6), and the output end of the fixing component (4) is movably plugged into the inside of the positioning hole (6); The fixing assembly (4) comprises a U-shaped rod (401), wherein the U-shaped rod (401) is fixedly connected to the outer side of the convex plate (3), and a support rod (402) is fixedly connected to the inner side of the U-shaped rod (401), and a thrust spring (404) is movably sleeved on the outer surface of the support rod (402), and a locking sleeve (405) is slidably sleeved on the outer surface of the support rod (402), and one end of the locking sleeve (405) passes through the convex plate (3) and is movably inserted into the interior of the positioning hole (6).

2. The clamping device for a vertical machining center according to claim 1, characterized in that: One end of the locking sleeve (405) close to the support rod (402) is fixedly connected to the limiting plate (403), and the limiting plate (403) is slidably sleeved on the outer surface of the support rod (402).

3. The clamping device for a vertical machining center according to claim 2, characterized in that: One end of the thrust spring (404) abuts against the inner side of the U-shaped rod (401), and the other end of the thrust spring (404) abuts against the limiting plate (403).

4. The clamping device for a vertical machining center according to claim 1, characterized in that: A mounting block (7) is fixedly connected to one side of the base (1), a driving motor (8) is fixedly connected to the outer side of the mounting block (7), a first ball screw (9) is fixedly connected to the output end of the driving motor (8), one end of the first ball screw (9) is fixedly connected to the second ball screw (10), ball nuts (11) are threadedly sleeved on the outer surfaces of the first ball screw (9) and the second ball screw (10), a fixing rod (12) is fixedly connected to the top of the ball nut (11), a straight groove (13) is provided on the top of the base (1), and the top of the fixing rod (12) passes through the straight groove (13) and is fixedly connected to the bottom of the moving block (2).

5. The clamping device for a vertical machining center according to claim 4, characterized in that: The threads on the outer surfaces of the first ball screw (9) and the second ball screw (10) are in opposite directions.

6. The clamping device for a vertical machining center according to claim 5, characterized in that: Guide grooves are provided on both sides of the interior of the moving block (2), and guide rails are fixedly connected to the front and rear sides of the base (1), and the outer surface of the guide rail is slidably connected to the inner wall of the guide groove.

7. The clamping device for a vertical machining center according to claim 6, characterized in that: The back side of the base (1) is provided with an inclined groove, and the inclined groove is connected to the straight groove (13).

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