Clamp for CNC machining

Abstract

The utility model discloses a CNC machining clamp which comprises a base, a transmission cavity is formed in the base, a waste groove is formed in the upper portion of the transmission cavity, the CNC machining clamp further comprises threaded rods which are rotationally arranged on the two sides in the transmission cavity, the outer portions of the threaded rods are both in threaded connection with movable seats, and the movable seats are in threaded connection with the movable seats. One end of each moving seat extends to the outside of the transmission cavity, the moving seats are in sliding fit with the transmission cavity, the adjusting seat is arranged over the moving seats, a connecting block is arranged in the adjusting seat, the connecting block is connected with the adjusting seat through a bearing, and the connecting block is connected with the adjusting seat through the bearing. The inner wall of the bearing is fixedly connected with the outer wall of the connecting block, and the outer wall of the bearing is fixedly connected with the inner wall of the adjusting seat. According to the clamp for CNC machining, the arc-shaped clamping blocks and the rectangular clamping blocks can be switched according to different workpieces, the practical range is widened, practicability is good, manual movement is not needed, the working intensity can be reduced, time and labor are saved, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of CNC processing, in particular to a clamp for CNC processing. Background Art

[0002] CNC machining refers to computer digital controlled precision machining, which is a new machining technology. In CNC machining, the movement of machining tools and the rotation of spindles are usually controlled by computer programming to achieve high-precision and high-efficiency machining. CNC machining lathes, CNC machining milling machines, CNC machining boring and milling machines, etc. all belong to the category of CNC machining. CNC machining has many advantages, such as stable machining quality, high machining accuracy, high production efficiency, and the ability to process parts with complex shapes. During CNC machining, the workpiece usually needs to be clamped and fixed by a fixture.

[0003] The existing Chinese patent with announcement number CN211708678U discloses a CNC machining clamp. When in use, the part is placed between the back end plate and the clamp, the push rod is held, and the clamp is slid toward the back end plate. The top end plate and the movable connection end are appropriately adjusted according to the size of the part. The setting of the buffer spring can prevent the clamp from sliding too fast and damaging the part. When the specifications of the parts are similar, the top end plate and the movable connection end are adjusted, which is labor-saving and simple to operate. The embedded slider is embedded in the sliding cavity groove on the sliding end plate and is slidably connected, which can not only help the movement of the clamp, but also improve the stability of the device when the device body is moving, reduce the violent vibration caused by the clamp sliding too fast, prevent damage to the workpiece, and reduce the friction between the moving block and the moving groove.

[0004] Although the above scheme can clamp and fix the workpiece, the device is inconvenient for clamping spherical workpieces, and needs to be moved manually during clamping. Long-term use leads to high labor intensity and inconvenience in use. Therefore, it does not meet the existing needs. In this regard, we propose a CNC machining fixture. Utility Model Content

[0005] The utility model aims to provide a CNC machining fixture to solve the problems inconvenient clamping of spherical workpieces by the CNC machining fixture proposed in the above background technology and high labor intensity caused by manual operation.

[0006] To achieve the above object, the utility model provides the following technical solution: a CNC machining fixture, comprising a base, a transmission cavity is provided inside the base, and a waste groove is provided above the transmission cavity;

[0007] It also includes threaded rods, which are rotatably arranged on both sides of the transmission cavity, and the outer parts of the threaded rods are threadedly connected with moving seats, one end of the moving seats extends to the outside of the transmission cavity, and the moving seats are slidably matched with the transmission cavity;

[0008] It also includes an adjustment seat, which is arranged directly above the movable seat. A connecting block is arranged inside the adjustment seat. The connecting block and the adjustment seat are connected through a bearing. The inner wall of the bearing is fixedly connected to the outer wall of the connecting block, and the outer wall of the bearing is fixedly connected to the inner wall of the adjustment seat.

[0009] Preferably, a dual-axis motor is provided at a middle position inside the transmission cavity, and the output end of the dual-axis motor is connected to the threaded rod via a coupling.

[0010] Preferably, an electric telescopic rod is installed on the upper side of the interior of the movable seat, and the output end of the electric telescopic rod is fixedly connected to the connecting block.

[0011] Preferably, four clamping blocks are provided at the upper end of the adjustment seat, a threaded groove is opened inside the connecting block, the internal thread of the threaded groove is connected with a bolt, the outer wall of the bolt is threadedly connected with a limit plate, the limit plate is penetrated by the clamping block, and the limit plate and the clamping block are slidably matched.

[0012] Preferably, a collection box is provided inside the waste trough, and the collection box is slidably matched with the waste trough.

[0013] Preferably, guide rods are welded on both sides of the lower end of the transmission cavity, and the guide rods all pass through the moving seat, and the guide rods all slide in cooperation with the moving seat.

[0014] Preferably, a rectangular clamping block is welded on the inner side of the adjusting seat, and an arc-shaped clamping block is welded on the outer side of the adjusting seat.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model is provided with a rectangular clamping block on one side of the adjusting seat and an arc-shaped clamping block on the other side of the adjusting seat. When clamping a spherical workpiece, the adjusting seat can be rotated by the bearing so that the arc-shaped clamping block on one side of the adjusting seat faces the workpiece, thereby clamping and fixing the spherical workpiece, and the user can switch the arc-shaped clamping block and the rectangular clamping block according to different workpieces, thereby increasing the practical range and having good practicality. After rotating the adjusting seat, the adjusting seat can be fixed to the connecting block by the thread cooperation of the bolt and the thread groove, thereby ensuring stability during clamping.

[0017] 2. The utility model opens a transmission cavity inside the base, and the dual-axis motor can be started when the workpiece is clamped and fixed. The dual-axis motor can make the two threaded rods rotate synchronously, and the threaded rods will drive the moving seat to move toward each other, thereby driving the rectangular clamping block or the arc clamping block to clamp and fix the workpiece, and the height of the workpiece can be raised and lowered through the electric telescopic rod, which increases practicality and does not require manual movement, which can reduce work intensity, save time and effort, and is easy to use.

[0018] 3. The utility model has a waste groove at the upper end of the base, and a collection box is slidably arranged inside the waste groove. Waste is generated during CNC processing. The waste can be allowed to enter the collection box by setting the waste groove, so that the waste can be collected to avoid the waste affecting the clamping operation. The collection box can be pulled out by the handle at the front end of the collection box, which is convenient for cleaning the waste inside the collection box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view schematic diagram of the internal structure of the utility model;

[0020] Figure 2 It is a top view schematic diagram of the upper structure of the base of the utility model;

[0021] Figure 3 For the utility model Figure 1 A partial enlarged view of the middle A area;

[0022] Figure 4 It is a schematic top view of the adjustment seat structure of the utility model.

[0023] In the figure: 1. base; 2. transmission chamber; 3. dual-axis motor; 4. threaded rod; 5. guide rod; 6. moving seat; 7. electric telescopic rod; 8. adjustment seat; 9. rectangular clamping block; 10. arc clamping block; 11. connecting block; 12. bearing; 13. limit plate; 14. clamping block; 15. bolt; 16. threaded groove; 17. waste trough; 18. collection box. 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 1-4The utility model provides a technical solution: a CNC processing fixture, comprising a base 1, a transmission cavity 2 is provided inside the base 1, and a waste groove 17 is provided above the transmission cavity 2;

[0026] It also includes threaded rods 4, which are rotatably arranged on both sides of the transmission cavity 2, and the outer parts of the threaded rods 4 are threadedly connected with moving seats 6, one end of the moving seats 6 extends to the outside of the transmission cavity 2, and the moving seats 6 are slidably matched with the transmission cavity 2;

[0027] It also includes an adjusting seat 8, which is arranged directly above the moving seat 6. A connecting block 11 is arranged inside the adjusting seat 8. The connecting block 11 and the adjusting seat 8 are connected through a bearing 12. The inner wall of the bearing 12 is fixedly connected to the outer wall of the connecting block 11, and the outer wall of the bearing 12 is fixedly connected to the inner wall of the adjusting seat 8.

[0028] When in use, the adjusting seat 8 can be fixed and adjusted by rotating the bolt 15 with a screwdriver. After the fixing of the adjusting seat 8 and the connecting block 11 is released, the adjusting seat 8 can be rotated through the bearing 12. The rectangular clamping block 9 or the arc clamping block 10 can be selected according to the workpiece, which increases the practical range and has good practicality. By starting the dual-axis motor 3, the threaded rod 4 can drive the moving seat 6 to move, thereby driving the adjusting seat 8 to move synchronously, clamping and fixing the workpiece, without manual movement, which can reduce work intensity, save time and effort, and is easy to use.

[0029] See also Figure 1 A dual-axis motor 3 is arranged at the middle position inside the transmission cavity 2. The output end of the dual-axis motor 3 is connected to the threaded rod 4 through a coupling transmission. The dual-axis motor 3 provides power for the movement of the adjustment seat 8, and no manual movement is required, which can reduce the work intensity.

[0030] See also Figure 1 and Figure 2 , an electric telescopic rod 7 is installed on the upper side of the movable seat 6, and the output end of the electric telescopic rod 7 is fixedly connected to the connecting block 11, and the height of the workpiece can be adjusted by the electric telescopic rod 7;

[0031] See also Figure 4 , four blocks 14 are arranged at the upper end of the adjusting seat 8, a thread groove 16 is provided inside the connecting block 11, a bolt 15 is threadedly connected to the inner thread groove 16, and the outer wall of the bolt 15 is threadedly connected to the limit plate 13, the limit plate 13 is penetrated by the block 14, and the limit plate 13 and the block 14 are slidably matched, and the four blocks 14 can limit the limit plate 13, so that the limit plate 13 moves down and fits with the adjusting seat 8;

[0032] See also Figure 1 and Figure 2A collection box 18 is provided inside the waste trough 17, and the collection box 18 is slidably matched with the waste trough 17, and the waste is collected by the collection box 18 to prevent the waste from affecting the clamping operation;

[0033] See also Figure 1 Guide rods 5 are welded on both sides of the lower end of the transmission chamber 2. The guide rods 5 all penetrate the moving seat 6, and the guide rods 5 all slide with the moving seat 6. The guide rods 5 can guide the moving seat 6 in a direction, so that the rotation of the moving seat 6 is converted into horizontal linear movement, thereby driving the adjustment seat 8 to move and clamp the workpiece;

[0034] See also Figure 1 and Figure 4 A rectangular clamping block 9 is welded on the inner side of the adjusting seat 8, and an arc-shaped clamping block 10 is welded on the outer side of the adjusting seat 8. The rectangular clamping block 9 or the arc-shaped clamping block 10 is selected according to the workpiece, which increases the applicable scope of clamping the workpiece. The inner walls of the rectangular clamping block 9 and the arc-shaped clamping block 10 can be adhered and fixed with anti-slip pads to increase friction and prevent the workpiece from slipping.

[0035] Working principle: When in use, the bolt 15 is rotated by a screwdriver so that the bolt 15 is screwed out of the thread groove 16, thereby releasing the connection between the adjusting seat 8 and the connecting block 11, and the adjusting seat 8 can be rotated through the bearing 12. The rectangular clamping block 9 or the arc clamping block 10 is selected according to the workpiece. When clamping and fixing the spherical workpiece, the arc clamping block 10 is facing inward, and then the bolt 15 is rotated by a screwdriver so that the bolt 15 is screwed into the inside of the thread groove 16. At this time, the limit plate 13 will move down synchronously, and the limit plate 13 will be penetrated by the clamping block 14, so that the adjusting seat 8 is squeezed by the limit plate 13, so that the adjusting seat 8 and the connecting block 11 can be fixed to ensure stability during clamping, and the dual-axis motor 3 is started. The threaded rod 4 can be rotated under the transmission of the coupling, and the threaded rod 4 will drive the moving The movable seat 6 rotates synchronously. Since the movable seat 6 and the threaded rod 4 slide together, the movable seat 6 will be limited axially. The rotation of the two movable seats 6 will be converted into horizontal linear movement. When the two movable seats 6 move toward each other, they will drive the arc clamping block 10 to clamp and fix the spherical workpiece, and the height of the workpiece can be adjusted by the electric telescopic rod 7. There is no need for manual movement, which can reduce work intensity, save time and effort, and is easy to use. The waste generated during CNC processing will fall into the collection box 18 through gravity, and the waste will be collected by the collection box 18 to prevent the waste from affecting the clamping operation. The user can pull out the collection box 18 through the handle at the front end of the collection box 18, so that the waste can be cleaned up, which is convenient for long-term use.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A CNC machining fixture, comprising a base (1), a transmission cavity (2) is provided inside the base (1), a waste material trough (17) is provided above the transmission cavity (2), and the characteristics are: It also includes a threaded rod (4) which is rotatably arranged on both sides of the transmission chamber (2), the outside of the threaded rod (4) is threadedly connected to a moving seat (6), one end of the moving seat (6) extends to the outside of the transmission chamber (2), and the moving seat (6) is slidably matched with the transmission chamber (2); The invention also comprises an adjusting seat (8) which is arranged directly above the movable seat (6); a connecting block (11) is arranged inside the adjusting seat (8); the connecting block (11) and the adjusting seat (8) are connected via a bearing (12); the inner wall of the bearing (12) is fixedly connected to the outer wall of the connecting block (11), and the outer wall of the bearing (12) is fixedly connected to the inner wall of the adjusting seat (8).

2. A CNC machining fixture according to claim 1, characterized in that: A dual-shaft motor (3) is arranged at a middle position inside the transmission chamber (2), and the output end of the dual-shaft motor (3) and the threaded rod (4) are both connected to each other through a coupling.

3. A CNC machining fixture according to claim 1, characterized in that: An electric telescopic rod (7) is installed on the upper side of the interior of the movable seat (6), and the output end of the electric telescopic rod (7) is fixedly connected to the connecting block (11).

4. A CNC machining fixture according to claim 1, characterized in that: Four clamping blocks (14) are arranged at the upper end of the adjusting seat (8), a thread groove (16) is provided inside the connecting block (11), a bolt (15) is threadedly connected to the inside of the thread groove (16), the outer wall of the bolt (15) is threadedly connected to a limit plate (13), the limit plate (13) is penetrated by the clamping block (14), and the limit plate (13) and the clamping block (14) are slidably matched.

5. The CNC machining fixture according to claim 1, characterized in that: A collection box (18) is arranged inside the waste trough (17), and the collection box (18) is slidably matched with the waste trough (17).

6. The CNC machining fixture according to claim 1, characterized in that: Guide rods (5) are welded on both sides of the lower end of the transmission cavity (2), and the guide rods (5) all penetrate the moving seat (6), and the guide rods (5) all slide in cooperation with the moving seat (6).

7. The CNC machining fixture according to claim 1, characterized in that: A rectangular clamping block (9) is welded on the inner side of the adjustment seat (8), and an arc-shaped clamping block (10) is welded on the outer side of the adjustment seat (8).

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