Ball lock quick-assembly positioning device for precision manufacturing

Abstract

The utility model discloses a ball lock quick-assembly positioning device for precision manufacturing. Comprising a ball lock shaft (3), the shaft body of the ball lock shaft (3) is sequentially sleeved with a positioning sleeve (1) and a receiving sleeve (2) in the axial direction, a positioning step A (10) is arranged at the top end of the ball lock shaft (3), a locking cavity (11) is formed in the bottom end of the ball lock shaft (3) in the axial direction, locking holes (12) are distributed in the cavity wall of the locking cavity (11) in the circumferential direction, locking steel balls (7) capable of moving in the radial direction are arranged in the locking holes (12), and a driving ball (9) is further arranged in the locking cavity (11) and located above the locking steel balls (7). A set screw (4) is arranged above the driving ball (9) and is in threaded connection with the ball lock shaft (3); a positioning step B (13) is arranged at the bottom end of the receiving sleeve (2), a locking groove (14) is further formed in the receiving sleeve (2), and the locking steel ball (7) can move in the radial direction and can be clamped between the locking hole (12) and the locking groove (14). According to the utility model, the operation time can be shortened, and the part clamping precision is improved.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical processing technology, and in particular, it is a ball lock quick-release positioning device for precision manufacturing. Background Technology

[0002] In machining, the key to improving machine tool productivity lies in creating more machining time, i.e., shortening various auxiliary times of the machine tool. One of the most important factors affecting machine tool efficiency is the clamping efficiency of parts. In machining, positioning elements and bases are often positioned using pins and bolts. When the positioning element needs to be disassembled, a pin and bolt connection is usually used, which is the simplest and most common method. However, alignment is time-consuming and requires manual operation, making error control difficult. With increasing demands for product quality and production efficiency, existing positioning and clamping methods cannot meet production needs. Utility Model Content

[0003] The purpose of this invention is to provide a ball-lock quick-release positioning device for precision manufacturing. This invention can shorten operation time and improve the clamping accuracy of parts.

[0004] The technical solution of this utility model is: a ball lock quick-release positioning device for precision manufacturing, including a ball lock shaft, a positioning sleeve and a receiving sleeve are sequentially sleeved on the shaft body along the axial direction, the top of the ball lock shaft is provided with a positioning step A, the bottom end is provided with a locking cavity along the axial direction, the wall of the locking cavity is provided with locking holes distributed in the circumferential direction, a locking steel ball that can move radially is provided in the locking hole, a driving ball is also provided above the locking steel ball in the locking cavity, a set screw is provided above the driving ball, and the set screw is threadedly connected to the ball lock shaft; the bottom end of the receiving sleeve is provided with a positioning step B, and a locking groove is also provided in the receiving sleeve, the locking steel ball can be locked between the locking hole and the locking groove when moving radially.

[0005] In the aforementioned ball lock quick-release positioning device for precision manufacturing, the locking steel balls are arranged in a triangular pattern in the circumferential direction.

[0006] In the aforementioned ball lock quick-release positioning device for precision manufacturing, the bottom end of the ball lock shaft is threaded with a plug for sealing the locking cavity.

[0007] In the aforementioned ball lock quick-release positioning device for precision manufacturing, the end of the set screw extending from the top of the ball lock shaft is provided with a knurled cylindrical head.

[0008] In the aforementioned ball lock quick-release positioning device for precision manufacturing, the contact surface between the set screw and the drive ball is an arc surface.

[0009] In the aforementioned ball lock quick-release positioning device for precision manufacturing, the bottom of the locking groove is provided with a guide cone surface.

[0010] The advantages of this utility model are: it can ensure quick fixing and disassembly of the tooling, reliable clamping during part processing, and simple tooling maintenance. The device integrates positioning and clamping functions, is suitable for various machine tools, and can improve the clamping position accuracy of parts. It has high cost-effectiveness and strong versatility, greatly saving the clamping time of parts and improving work efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the present invention.

[0012] Figure 2 This is an exploded view of this utility model.

[0013] 1-Positioning sleeve, 2-Receiving sleeve, 3-Ball lock shaft, 4-Set screw, 5-Positioning element, 6-Base, 7-Locking steel ball, 8-Plug, 9-Drive ball, 10-Positioning step A, 11-Locking cavity, 12-Locking hole, 13-Positioning step B, 14-Locking groove, 15-Knurled cylindrical head, 16-Guide cone surface. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0015] Example 1. A ball lock quick-release positioning device for precision manufacturing, configured as follows: Figure 1 - Figure 2 As shown, the device includes a ball lock shaft 3, with a positioning sleeve 1 and a receiving sleeve 2 sequentially sleeved on the shaft body of the ball lock shaft 3 along the axial direction. The top of the ball lock shaft 3 is provided with a positioning step A10, and the bottom end is provided with a locking cavity 11 along the axial direction. Locking holes 12 are distributed circumferentially on the wall of the locking cavity 11. A locking steel ball 7 that can move radially is provided in the locking hole 12. A driving ball 9 is also provided above the locking steel ball 7 in the locking cavity 11. A set screw 4 is provided above the driving ball 9. The set screw 4 is threadedly connected to the ball lock shaft 3. The bottom end of the receiving sleeve 2 is provided with a positioning step B13, and a locking groove 14 is also provided in the receiving sleeve 2. The locking steel ball 7 can be locked between the locking hole 12 and the locking groove 14 when it moves radially.

[0016] The aforementioned locking steel balls 7 are arranged in a triangular pattern in the circumferential direction.

[0017] The aforementioned ball lock shaft 3 has a plug 8 threadedly connected to its bottom end for sealing the locking cavity 11.

[0018] The aforementioned set screw 4 has a knurled cylindrical head 15 at one end extending from the top of the ball lock shaft 3.

[0019] The contact surface between the aforementioned set screw 4 and the drive ball 9 is an arc surface.

[0020] The bottom of the aforementioned locking groove 14 is provided with a guide cone surface 16.

[0021] The procedure for using this device is as follows:

[0022] Step 1: Install the positioning sleeve 1 and the receiving sleeve 2 into the positioning element 5 and the base 6 respectively.

[0023] Step 2: Insert the ball lock shaft 3 into the positioning sleeve 1, so that the positioning steps A10 and B13 clamp the positioning element 5 and the base 6.

[0024] Step 3: The ball lock shaft 3 contains three locking steel balls 7, one driving ball 9, and one set screw 4. Tightening the set screw 4 causes the driving ball in the middle to push the three locking steel balls 7 outwards along the locking hole 12, where they are locked between the locking hole 12 and the locking groove 14, thus achieving positioning and clamping in one step. To exit positioning and clamping, loosening the set screw 4 and pulling out the ball lock shaft 3 allows the locking steel balls 7 to return to the locking cavity 11 under the guidance and pushing of the guide cone surface 16, enabling the ball lock shaft 3 to be pulled out smoothly.

Claims

1. A ball-lock quick-attach positioning device for precision manufacturing, characterized by, The application relates to a ball lock shaft (3), the shaft body of which is sequentially sleeved with a positioning sleeve (1) and a receiving sleeve (2) along the axial direction, the top end of the ball lock shaft (3) is provided with a positioning step A (10), the bottom end of the ball lock shaft (3) is provided with a locking cavity (11) along the axial direction, the cavity wall of the locking cavity (11) is circumferentially provided with locking holes (12), the locking holes (12) are provided with locking steel balls (7) capable of moving in the radial direction, the locking cavity (11) is further provided with a driving ball (9) above the locking steel balls (7), the driving ball (9) is provided with a locking screw (4) above, the locking screw (4) is in threaded connection with the ball lock shaft (3), the bottom end of the receiving sleeve (2) is provided with a positioning step B (13), the receiving sleeve (2) is further provided with a locking groove (14), the locking steel balls (7) can be clamped between the locking holes (12) and the locking groove (14) by moving in the radial direction.

2. The ball-lock quick-attach positioning device for precision manufacturing of claim 1, wherein, The locking steel balls (7) are distributed in a triangle shape in the circumferential direction.

3. The ball-lock quick-change positioning device for precision manufacturing of claim 1, wherein, The bottom end of the ball lock shaft (3) is in threaded connection with a plug (8) for plugging the locking cavity (11).

4. The ball-lock quick-attach positioning device for precision manufacturing of claim 1, wherein, One end of the locking screw (4) extending out of the top end of the ball lock shaft (3) is provided with a knurled cylindrical head (15).

5. The ball-lock quick-change positioning device for precision manufacturing of claim 1, wherein, The contact surface of the locking screw (4) and the driving ball (9) is an arc surface.

6. The ball-lock quick-change positioning device for precision manufacturing of claim 1, wherein, The bottom of the locking groove (14) is provided with a guide conical surface (16).

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