High-precision stable machining clamp

Abstract

The utility model discloses a kind of high-precision stable machining clamps, including clamp main body, the periphery of clamp main body is connected with locking lever, the bottom end of clamp main body is connected with base, the both sides of locking lever are fixedly connected with auxiliary block, the inside bottom end of locking lever is provided with inner chamber, the inside screw thread connection of locking lever has locking screw rod, the utility model relates to machining clamp technical field;The high-precision stable machining clamp, by rotating bidirectional screw rod, clamping plate moves relatively in the range of sliding slot, so that sliding slot can be clamped and fixed to different size workpieces, by the setting of rubber pad, the friction between clamping plate and workpiece is increased, clamping is more stable, by the setting of locking lever, bidirectional screw rod can be locked, prevent loosening during processing bidirectional screw rod, cause the clamping force of workpiece to decrease, make workpiece loosen, affect processing quality.

Description

Technical Field

[0001] This utility model relates to the field of machining fixture technology, specifically a high-precision and stable machining fixture. Background Technology

[0002] Machining refers to the process of changing the shape, size, or properties of a workpiece using mechanical equipment. It can be divided into cutting and pressure processing according to the difference in processing methods. In this process, any process that changes the shape, size, position, and properties of the production object to make it a finished or semi-finished product is called a technological process.

[0003] Some fixtures use a lead screw to rotate and move the clamping blocks to hold and fix the workpiece. This type of fixture lacks a locking function for the lead screw. During the clamping process, when faced with complex and changing machining conditions and strong cutting forces, the lead screw is prone to loosening, causing the workpiece to loosen or shift, which seriously affects the machining quality and may even cause safety hazards.

[0004] To address this issue, the present invention provides a high-precision and stable machining fixture. By setting a locking rod to fix the lead screw, it prevents the lead screw from loosening during machining, which would cause the workpiece to shift and affect the machining quality, thus solving the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a high-precision and stable machining fixture, thus solving the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-precision and stable machining fixture, comprising a fixture body, a locking rod connected to the periphery of the fixture body, a base connected to the bottom end of the fixture body, auxiliary blocks fixedly connected to both sides of the locking rod, an inner cavity provided at the bottom end of the locking rod, a locking screw threadedly connected to the inside of the locking rod, the lower half of the locking screw being disposed within the inner cavity, a pushing ball movably disposed at the bottom end of the locking screw, and locking balls movably disposed on both sides of the pushing ball.

[0007] Preferably, the surface of the fixture body is provided with a sliding groove, and a bidirectional lead screw is provided inside the sliding groove, with both ends of the bidirectional lead screw being rotatably connected to the fixture body.

[0008] Preferably, the bottom end of the locking rod is fixedly connected to the bidirectional lead screw, and a semi-circular cavity is provided inside the clamp body near the locking rod, the inner diameter of the semi-circular cavity matching the outer diameter of the locking ball.

[0009] Preferably, the upper end of the clamp body is movably connected to a clamping plate via the slide groove, the bottom end of the clamping plate is threadedly connected to the bidirectional lead screw, and a rubber pad is fixedly connected to one side of the clamping plate.

[0010] Preferably, a pointer is fixedly connected to one end of the clamp body, and multiple limiting holes are provided on the lower surface of the clamp body. The limiting holes are arranged on the same circumference and the two adjacent limiting holes are spaced 10° apart.

[0011] Preferably, a connecting bearing is rotatably mounted on the top of the base, the top of the connecting bearing is fixedly connected to the bottom of the fixture body, and a circumferential scale is provided on the outer periphery of the base.

[0012] Preferably, the base further includes a limiting ring, the bottom end of which is fixedly connected to a connecting post, the bottom end of which is movably installed inside the base, the bottom end of which is fixedly connected to a spring, which is fixedly installed inside the base, and the surface of the limiting ring is fixedly connected to a limiting post, the outer diameter of which matches the inner diameter of the limiting hole.

[0013] Beneficial effects

[0014] This invention provides a high-precision and stable machining fixture. Compared with the prior art, it has the following advantages:

[0015] (1) This high-precision and stable machining fixture allows the clamping plate to move relative to the slide within the range of the slide by rotating the bidirectional lead screw, so that the slide can clamp and fix workpieces of different sizes. The rubber pad increases the friction between the clamping plate and the workpiece, making the clamping more stable. The locking rod can lock the bidirectional lead screw to prevent it from loosening during the machining process, which would reduce the clamping force on the workpiece, cause the workpiece to loosen, and affect the machining quality.

[0016] (2) The high-precision and stable machining fixture allows the fixture body and the base to rotate through the setting of the connecting bearing, which enables the parts to rotate during machining, which is beneficial to machining. The position between the fixture body and the base can be locked by setting the limit ring to prevent the fixture body from rotating due to force during machining, which would affect the machining. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the clamp of this utility model;

[0019] Figure 3This is a schematic diagram of the locking rod structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the limiting hole of this utility model;

[0021] Figure 5 This is a schematic diagram of the base structure of this utility model.

[0022] In the diagram: 1. Fixture body; 11. Slide groove; 12. Semicircular cavity; 13. Two-way lead screw; 14. Clamping plate; 15. Rubber pad; 16. Pointer; 17. Limiting hole; 2. Locking rod; 21. Auxiliary block; 22. Inner cavity; 23. Locking lead screw; 24. Push ball; 25. Locking ball; 3. Base; 31. Connecting bearing; 32. Circumferential scale; 33. Limiting ring; 34. Limiting post; 35. Connecting post; 36. Spring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] Please see Figure 1-4 A high-precision and stable machining fixture includes a fixture body 1, a locking rod 2 connected to the periphery of the fixture body 1, a base 3 connected to the bottom end of the fixture body 1, auxiliary blocks 21 fixedly connected to both sides of the locking rod 2, an inner cavity 22 provided at the bottom end of the locking rod 2, a locking screw 23 threadedly connected to the inside of the locking rod 2, the lower half of the locking screw 23 being disposed in the inner cavity 22, a push ball 24 movably disposed at the bottom end of the locking screw 23, and locking balls 25 movably disposed on both sides of the push ball 24.

[0026] The surface of the fixture body 1 is provided with a sliding groove 11, and a bidirectional lead screw 13 is provided inside the sliding groove 11. The two ends of the bidirectional lead screw 13 are rotatably connected to the fixture body 1.

[0027] The bottom end of the locking rod 2 is fixedly connected to the bidirectional lead screw 13. A semi-circular cavity 12 is provided inside the clamp body 1 near the locking rod 2. The inner diameter of the semi-circular cavity 12 matches the outer diameter of the locking ball 25.

[0028] The upper end of the clamp body 1 is movably connected to the clamping plate 14 via the slide groove 11. The bottom end of the clamping plate 14 is threadedly connected to the bidirectional lead screw 13. A rubber pad 15 is fixedly connected to one side of the clamping plate 14.

[0029] A pointer 16 is fixedly connected to the bottom of the fixture body 1. Multiple limiting holes 17 are provided on the lower surface of the fixture body 1. The limiting holes 17 are arranged on the same circumference and the interval between two adjacent limiting holes 17 is 10°.

[0030] In this embodiment, the auxiliary block 21 rotates the locking rod 2, causing the bidirectional lead screw 13 to rotate, which in turn drives the clamping plate 14 to move relative to the slide groove 11. This allows the clamping plate 14 to clamp and fix workpieces of different sizes. The rubber pad 15 increases the friction between the clamping plate 14 and the workpiece, making the clamping more stable. The pointer 16 allows the user to easily understand how much the fixture body 1 has rotated. By rotating the locking lead screw 23, the bottom of the locking lead screw 23 pushes the pushing ball 24 down towards the bottom of the inner cavity 22. The pushing ball 24 pushes the locking balls 25 on both sides of its bottom outward, so that half of the locking ball 25 enters the semi-circular cavity 12 and the other half remains in the inner cavity 22, locking the position of the inner cavity 22. This prevents the bidirectional lead screw 13 from becoming loose during processing. By rotating the locking lead screw 23 in the opposite direction, the lock on the locking rod 2 can be released, allowing the bidirectional lead screw 13 to rotate again.

[0031] Example 2:

[0032] Please see Figure 2-5 This embodiment provides a technical solution based on embodiment one: a connecting bearing 31 is rotatably mounted on the top of the base 3, the top of the connecting bearing 31 is fixedly connected to the bottom of the fixture body 1, and a circumferential scale 32 is provided on the outer periphery of the base 3.

[0033] The base 3 also includes a limiting ring 33, with a connecting post 35 fixedly connected to the bottom end of the limiting ring 33. The bottom end of the connecting post 35 is movably installed inside the base 3. A spring 36 is fixedly connected to the bottom end of the connecting post 35. The spring 36 is fixedly installed inside the base 3. A limiting post 34 is fixedly connected to the surface of the limiting ring 33. The outer diameter of the limiting post 34 matches the inner diameter of the limiting hole 17.

[0034] In this embodiment, the fixture body 1 and the base 3 are rotatable by the connecting bearing 31. The connecting post 35 is lifted by the spring 36, thereby lifting the limiting ring 33 and inserting the limiting post 34 into the limiting hole 17 to lock the position between the fixture body 1 and the base 3. Pressing the limiting ring 33 downwards can release the lock between the fixture body 1 and the base 3. After the limiting ring 33 is released, the spring 36 will rebound the limiting ring 33 upwards, allowing the limiting post 34 to enter the limiting hole 17 and re-lock the fixture body 1. The circumferential scale 32, in conjunction with the pointer 16, makes it easy to read the rotation angle of the fixture body 1.

[0035] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-precision stable machining fixture comprising a fixture body (1), characterized in that: A locking rod (2) is connected to the periphery of the clamp body (1). A base (3) is connected to the bottom end of the clamp body (1). An auxiliary block (21) is fixedly connected to both sides of the locking rod (2). An inner cavity (22) is provided at the bottom of the locking rod (2). A locking screw (23) is threadedly connected to the inside of the locking rod (2). The lower half of the locking screw (23) is located in the inner cavity (22). A push ball (24) is movably provided at the bottom end of the locking screw (23). Locking balls (25) are movably provided on both sides of the push ball (24).

2. A high precision stable machining fixture according to claim 1, characterized in that: The surface of the fixture body (1) is provided with a sliding groove (11), and a bidirectional lead screw (13) is provided inside the sliding groove (11). The two ends of the bidirectional lead screw (13) are rotatably connected to the fixture body (1).

3. The high-precision and stable machining fixture according to claim 2, characterized in that: The bottom end of the locking rod (2) is fixedly connected to the bidirectional lead screw (13). A semi-circular cavity (12) is provided inside the clamp body (1) near the locking rod (2). The inner diameter of the semi-circular cavity (12) matches the outer diameter of the locking ball (25).

4. A high-precision and stable machining fixture according to claim 2, characterized in that: The upper end of the clamp body (1) is movably connected to the clamping plate (14) through the slide groove (11), the bottom end of the clamping plate (14) is threadedly connected to the bidirectional lead screw (13), and a rubber pad (15) is fixedly connected to one side of the clamping plate (14).

5. A high-precision and stable machining fixture according to claim 1, characterized in that: A pointer (16) is fixedly connected to one end of the fixture body (1). A plurality of limiting holes (17) are provided on the lower surface of the fixture body (1). The limiting holes (17) are arranged on the same circumference and the two adjacent limiting holes (17) are spaced 10° apart.

6. The high-precision and stable machining fixture according to claim 1, characterized in that: A connecting bearing (31) is rotatably mounted on the top of the base (3), and the top of the connecting bearing (31) is fixedly connected to the bottom of the fixture body (1). A circumferential scale (32) is provided on the outer periphery of the base (3).

7. A high-precision and stable machining fixture according to claim 5, characterized in that: The base (3) also includes a limiting ring (33), the bottom end of which is fixedly connected to a connecting post (35), the bottom end of which is movably installed inside the base (3), the bottom end of which is fixedly connected to a spring (36), the spring (36) is fixedly installed inside the base (3), and the surface of the limiting ring (33) is fixedly connected to a limiting post (34), the outer diameter of which matches the inner diameter of the limiting hole (17).

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