Rapid clamping tool

Abstract

The utility model relates to a rapid clamping tool which comprises a carrier plate. The upper cover is mounted on the top surface of the carrier plate; a containing cavity is formed in the bottom face of the upper cover, a first through hole is formed in the middle, corresponding to the containing cavity, of the upper cover, and a plurality of limiting blocks are arranged on the inner wall, corresponding to the periphery of the first through hole, of the upper cover in a circumferential array mode. The turntable is rotatably mounted in the upper cover; a plurality of ball containing cavities are evenly formed in the inner periphery of the top face of the rotating disc at intervals, and adjusting grooves are formed in the sides, corresponding to the ball containing cavities, of the top face of the rotating disc. The turntable is rotatably mounted in the accommodating cavity; the balls are clamped between the upper cover and the turntable; and the handle penetrates through the upper cover and then is inwards connected with the turntable. The rapid clamping tool is simple in structure and convenient to use, the multiple balls can be driven to gather together by rotating the rotary table through the handle, the balls protrude out of the limiting notches and then abut against the end of the workpiece to clamp the workpiece, the clamping adaptability is greatly improved, and the problem that clamping is unstable due to workpiece size changes is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rapid clamping, in particular to a rapid clamping tool. Background Art

[0002] In industrial production, it is a common requirement to process workpieces of various shapes and sizes. In order to ensure the accuracy and efficiency of processing, it is usually necessary to use tooling to stably clamp these workpieces. However, due to the diversity of workpiece sizes and shapes, how to provide a clamping method that can adapt to different workpiece sizes is a technical challenge.

[0003] Most of the existing tooling is mechanical or pneumatic. Although these tooling can adapt to the size of the workpiece to a certain extent, due to the limitations of their structure and working principle, their adaptive range is small and cannot meet the needs of various workpiece sizes. Utility Model Content

[0004] Based on this, the utility model provides a quick clamping tool with a simple structure and easy use. By rotating the turntable with a handle, multiple ball bearings can be driven to gather together. After the ball bearings protrude beyond the limit notch, they abut the end of the workpiece to clamp the workpiece, which greatly improves the adaptability of clamping and reduces the problem of unstable clamping caused by changes in the size of the workpiece.

[0005] In order to achieve the purpose of the utility model, the utility model adopts the following technical solutions:

[0006] A quick clamping tool, comprising:

[0007] Carrier board;

[0008] An upper cover is mounted on the top surface of the carrier; a receiving cavity is provided on the bottom surface of the upper cover, a first through hole is opened in the middle of the upper cover corresponding to the receiving cavity, and a plurality of limit blocks are arranged in a circumferential array around the first through hole on the inner wall of the upper cover; and limit notches are formed between adjacent limit blocks;

[0009] A turntable rotatably mounted inside the upper cover; a second through hole is provided in the middle of the turntable, and the second through hole cooperates with the first through hole to form a clamping hole; a plurality of ball accommodating cavities are evenly spaced on the inner periphery of the top surface of the turntable, and an adjustment groove is provided on one side of the top surface of the turntable corresponding to each ball accommodating cavity; the turntable is rotatably mounted inside the accommodating cavity, and the adjustment groove is used to accommodate a limit block;

[0010] A plurality of balls are sandwiched between the upper cover and the turntable; the balls are accommodated in the limiting notches, the inner wall of the adjusting groove is used to drive the balls to gradually move toward the center of the clamping hole, and the balls are used to abut against the end of the workpiece after protruding beyond the limiting notches; and

[0011] After passing through the upper cover, a handle is connected inwardly to the turntable.

[0012] The above-mentioned quick clamping tooling has a simple structure and is easy to use. By rotating the turntable with a handle, multiple balls can be driven to gather together. After the balls protrude beyond the limit notch, they abut the end of the workpiece to clamp the workpiece, which greatly improves the adaptability of clamping and reduces the problem of unstable clamping caused by changes in the workpiece size.

[0013] In one embodiment, the second through hole is coaxially disposed with the first through hole.

[0014] In one embodiment, the limiting block is arranged in a fan shape.

[0015] In one embodiment, the width of the limiting block is smaller than the diameter of the ball; the inner opening width of the limiting notch is smaller than the diameter of the ball.

[0016] In one embodiment, the adjustment slot has a first end and a second end, the slot width of the first end is greater than the slot width of the second end; the slot width of the first end and the slot width of the second end are both smaller than the diameter of the ball.

[0017] In one of the embodiments, a side groove is further provided on the side of the upper cover, and the side groove is connected inwardly to the accommodating cavity; an internal threaded hole is provided on one side of the turntable, and the internal threaded hole corresponds to the side groove, and one end of the handle passes through the side groove and matches the internal threaded hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of a quick clamping tool according to an embodiment of the utility model;

[0019] Figure 2 for Figure 1 An exploded schematic diagram of the quick clamping tooling shown;

[0020] Figure 3 for Figure 2 An exploded schematic diagram of the quick clamping tooling from another perspective is shown;

[0021] Figure 4 for Figure 1 A partial cross-sectional view of the quick clamping fixture shown;

[0022] Figure 5 for Figure 4 A comparative schematic diagram of a turntable, a ball bearing and a limit block in a quick clamping fixture is shown;

[0023] Figure 6 for Figure 4 Schematic diagram of the action of the quick clamping tooling shown.

[0024] Notes on the attached drawings:

[0025] 10-carrier board;

[0026] 20-upper cover, 21-accommodating cavity, 22-first through hole, 23-limiting block, 230-limiting notch, 24-side slot;

[0027] 30 - rotating disk, 31 - second through hole, 32 - ball cavity, 33 - adjusting groove, 331 - first end, 332 - second end, 34 - internal threaded hole;

[0028] 40-ball;

[0029] 50-Handle. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0033] See also Figures 1 to 6 , which is a quick clamping tool according to an embodiment of the utility model, includes a carrier plate 10, an upper cover 20 installed on the top surface of the carrier plate 10, a turntable 30 rotatably installed inside the upper cover 20, a plurality of balls 40 clamped between the upper cover 20 and the turntable 30, and a handle 50 that penetrates the upper cover 20 and is inwardly connected to the turntable 30.

[0034] The bottom surface of the upper cover 20 is provided with an accommodating cavity 21, and a first through hole 22 is opened in the middle of the upper cover 20 corresponding to the accommodating cavity 21, and the first through hole 22 is coaxially arranged with the accommodating cavity 21. A plurality of limit blocks 23 are arranged in a circumferential array around the inner wall of the upper cover 20 corresponding to the first through hole 22, and the limit blocks 23 are arranged in a fan shape. A limit notch 230 is formed between adjacent limit blocks 23, and the limit notch 230 is used to accommodate the ball 40.

[0035] In this embodiment, the width of the limiting block 23 is smaller than the diameter of the ball 40 .

[0036] In this embodiment, the inner opening width of the limiting notch 230 is smaller than the diameter of the ball 40 , which can effectively prevent the ball 40 from falling out.

[0037] Furthermore, a side slot 24 is provided on the side of the upper cover 20 . The side slot 24 is connected inwardly to the accommodating cavity 21 . The side slot 24 is used for the handle 50 to pass through.

[0038] The turntable 30 can be rotatably installed inside the accommodating cavity 21. A second through hole 31 is provided in the middle of the turntable 30. The second through hole 31 is coaxially arranged with the first through hole 22. The second through hole 31 cooperates with the first through hole 22 to form a clamping hole, which is convenient for the end of the workpiece to be inserted. A plurality of ball accommodating cavities 32 are evenly spaced on the inner circumference of the top surface of the turntable 30. The ball accommodating cavities 32 are used to position and accommodate the ball 40. An adjustment groove 33 is provided on the top surface of the turntable 30 on one side corresponding to each ball accommodating cavity 32. The adjustment groove 33 is used to accommodate the limit block 23. The inner wall of the adjustment groove 33 is used to drive the ball 40 to gradually move toward the center of the clamping hole. After the ball 40 protrudes beyond the limit notch 230, it is used to abut the end of the workpiece to achieve the clamping effect on the workpiece.

[0039] Specifically, Figure 5 As shown, the adjustment slot 33 has a first end 331 and a second end 332 , and the slot width of the first end 331 is greater than the slot width of the second end 332 ; the slot width of the first end 331 and the slot width of the second end 332 are both smaller than the diameter of the ball 40 .

[0040] An internal thread hole 34 is provided on one side of the turntable 30, and the internal thread hole 34 corresponds to the side slot 24. One end of the handle 50 passes through the side slot 24 and matches the internal thread hole 34 to achieve the connection and installation of the handle 50 and the turntable 30. Figure 6 As shown, by pulling the handle 50 in the direction of the arrow, the turntable 30 can be driven to rotate. At this time, the inner wall of the adjustment groove 33 corresponds to the driving ball 40 to gradually move toward the center of the clamping hole, and the balls 40 gather together. After the balls 40 protrude beyond the limit notch 230, they abut the end of the workpiece to achieve the clamping effect on the workpiece.

[0041] The above-mentioned quick clamping tool has a simple structure and is easy to use. By rotating the turntable 30 with the handle 50, multiple balls 40 can be driven to gather together. After the balls 40 protrude beyond the limit notch 230, they abut the end of the workpiece to clamp the workpiece, which greatly improves the adaptability of clamping and reduces the problem of unstable clamping caused by changes in the workpiece size.

[0042] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A quick clamping tool, characterized in that: include: Carrier board; An upper cover is mounted on the top surface of the carrier; a receiving cavity is provided on the bottom surface of the upper cover, a first through hole is opened in the middle of the upper cover corresponding to the receiving cavity, and a plurality of limit blocks are arranged in a circumferential array around the first through hole on the inner wall of the upper cover; and limit notches are formed between adjacent limit blocks; A turntable rotatably mounted inside the upper cover; a second through hole is provided in the middle of the turntable, and the second through hole cooperates with the first through hole to form a clamping hole; a plurality of ball accommodating cavities are evenly spaced on the inner periphery of the top surface of the turntable, and an adjustment groove is provided on one side of the top surface of the turntable corresponding to each ball accommodating cavity; the turntable is rotatably mounted inside the accommodating cavity, and the adjustment groove is used to accommodate a limit block; A plurality of balls are sandwiched between the upper cover and the turntable; the balls are accommodated in the limiting notches, the inner wall of the adjusting groove is used to drive the balls to gradually move toward the center of the clamping hole, and the balls are used to abut against the end of the workpiece after protruding beyond the limiting notches; and After passing through the upper cover, a handle is connected inwardly to the turntable.

2. The quick clamping tool according to claim 1, characterized in that: The second through hole is coaxially arranged with the first through hole.

3. The quick clamping tool according to claim 1, characterized in that: The limit block is arranged in a fan shape.

4. The quick clamping tool according to claim 1, characterized in that: The width of the limiting block is smaller than the diameter of the ball; the inner opening width of the limiting notch is smaller than the diameter of the ball.

5. The quick clamping tool according to claim 1, characterized in that: The adjusting groove is provided with a first end and a second end, the groove width of the first end is larger than the groove width of the second end; the groove width of the first end and the groove width of the second end are both smaller than the diameter of the ball.

6. The quick clamping tool according to claim 1, characterized in that: A side slot is also provided on the side of the upper cover, and the side slot is connected inwardly to the accommodating cavity; an internal threaded hole is provided on one side of the turntable, and the internal threaded hole corresponds to the side slot, and one end of the handle passes through the side slot and matches the internal threaded hole.

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