Adjustable quick positioning device

Abstract

The invention discloses an adjustable quick positioning device, comprising a main body, a top plate, a sliding plate, a guard plate, an adjusting shaft, a fixing rod, a fixing cap, a resistance ball, a pressing spring and an adjusting nut. The top plate is arranged on the top of the main body, the guard plate is fixedly connected to the main body, the sliding plate is arranged between the guard plate and the main body, and is pressed against the main body through the guard plate. A sliding groove used in conjunction with the sliding plate is provided on the main body, the top plate is fixedly connected to the top of the sliding plate, a main scale line is provided on one side of the sliding plate close to the guard plate, an opening is provided on the guard plate opposite to the main scale line, and a secondary scale line used in conjunction with the main scale line is provided next to the opening. The adjusting shaft passes through the main body, and two ends are fixedly connected to the fixing rod and the fixing cap respectively. The adjusting shaft adjusts the position of the sliding plate by being connected to the sliding plate gear, the resistance ball is pressed by the adjusting nut and limits the fixing rod. The positioning device realizes quick and accurate positioning of a single small-sized part, and the adjustment and positioning are convenient, and the adjustment accuracy can reach 0.02mm.

Description

Technical Field

[0001] The invention relates to the field of mechanical positioning devices, in particular to an adjustable quick positioning device. Background Art

[0002] In the process of mechanical processing, whether it is turning, milling, numerical turning, numerical milling, grinding and other types of work, positioning is required during the clamping process of parts. In the processing of small batches and single products, especially in the processing of small-sized parts with high dimensional requirements, how to quickly and accurately achieve positioning will have a significant impact on the processing quality and efficiency of the product. Summary of the invention

[0003] In view of the above technical problems, the present invention proposes an adjustable quick positioning device, which can realize quick and accurate positioning of a single small-sized part, is easy to adjust and position, and the adjustment accuracy can reach 0.02mm.

[0004] An adjustable quick positioning device comprises a main body, a top plate, a sliding plate, a guard plate, an adjusting shaft, a fixing rod, a fixing cap, a resistance ball, a pressing spring and an adjusting nut, wherein the top plate is arranged on the top of the main body, the guard plate is fixedly connected to the main body, the sliding plate is arranged between the guard plate and the main body, and is pressed against the main body through the guard plate, a sliding groove used in conjunction with the sliding plate is provided on the main body, the top plate is fixedly connected to the top of the sliding plate, a main scale line is provided on one side of the sliding plate close to the guard plate, an opening is provided on the guard plate opposite to the main scale line, and a secondary scale line used in conjunction with the main scale line is provided next to the opening, the adjusting shaft passes through the main body, and both ends are fixedly connected to the fixing rod and the fixing cap respectively, A gear is fixed on the adjusting shaft, and a straight rack used in conjunction with the gear is provided on the side of the sliding plate close to the adjusting shaft. The adjusting nut passes through the guard plate and is fixedly connected to the main body. One end of the compression spring is limited by the adjusting nut, and the resistance ball is compressed by the other end of the compression spring, and the fixing rod is limited by the resistance ball. The fixing rod is a three-section structure, including a large end, a middle end, and a small end. The large end is used for pressing, and the small end is fixedly connected to the adjusting shaft. An annular rectangular groove is provided on the side of the middle end close to the large end, and an annular V-shaped groove is provided on the side close to the small end. When the adjusting shaft is rotated, the resistance ball is located in the annular rectangular groove, and when the adjusting shaft is locked, the resistance ball is located in the annular V-shaped groove.

[0005] As a preferred embodiment of the above technical solution, the fixing cap is a two-section structure, including a large end and a small end, the large end is used for rotation, and the small end is fixedly connected to the adjusting shaft.

[0006] As a preferred embodiment of the above technical solution, the small end of the fixing cap is in the shape of a hollow frustum of a cone, the large diameter end of the frustum of a cone is fixedly connected to the large end of the fixing cap, the hollow part of the small end of the fixing cap is clamped with the adjusting shaft, and the fixing cap is fixedly connected to the adjusting shaft by a screw passing through its large end. When the adjusting shaft is locked, the small end of the fixing cap is frictionally locked with the main body.

[0007] As a preferred embodiment of the above technical solution, a plurality of rectangular grooves are provided in parallel on one side of the lower opening of the guard plate close to the sliding plate, and a trimming strip protruding from the guard plate is provided in the rectangular groove.

[0008] As a preferred embodiment of the above technical solution, the main body is provided with a stepped hole used in conjunction with the adjusting shaft, the fixing rod and the fixing cap, the middle section of the stepped hole is connected to the outside, and the gear is located in the middle section of the stepped hole and meshed with the spur rack.

[0009] As a preferred embodiment of the above technical solution, the measurement accuracy of the main scale lines and the auxiliary scale lines is 0.02mm.

[0010] As a preferred embodiment of the above technical solution, a group of arc grooves are arranged in parallel on both sides of the opening of the guard plate.

[0011] As a preferred embodiment of the above technical solution, a V-shaped positioning groove is provided on the side of the main body facing away from the sliding plate and opposite to the top plate, and a rectangular opening groove is provided at the bottom of the V-shaped positioning groove.

[0012] As a preferred embodiment of the above technical solution, a V-shaped avoidance groove used in conjunction with the V-shaped positioning groove is provided at the bottom of the main body.

[0013] The beneficial effects of the present invention are:

[0014] 1. Simple structure, easy assembly and processing.

[0015] 2. The adjustment accuracy can reach 0.02mm, and the adjustment is convenient.

[0016] 3. The self-locking device of the adjusting rod is cleverly designed to achieve quick locking of the adjusting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The structure of the present invention is schematically shown Figure 1 .

[0018] Figure 2 The structure of the present invention is schematically shown Figure 1 .

[0019] Figure 3 The explosion of the present invention Figure 1 .

[0020] Figure 4 The explosion of the present invention Figure 2 .

[0021] Figure 5 Schematic diagram of the fixed rod structure.

[0022] Figure 6 It is a schematic diagram of the fixed cap structure.

[0023] Figure 7 This is a partial enlarged view of the sliding plate.

[0024] The accompanying drawings are marked as follows: 1-main body, 2-top plate, 3-sliding plate, 4-guard plate, 5-adjusting shaft, 6-fixing rod, 7-fixing cap, 8-resistance ball, 9-compression spring, 10-adjusting nut, 11-sliding groove, 12-main scale line, 13-opening, 14-secondary scale line, 15-gear, 16-spur rack, 17-annular rectangular groove, 18-annular V-shaped groove, 19-screw, 20-rectangular groove, 21-inlay, 22-stepped hole, 23-arc groove, 24-V-shaped positioning groove, 25-rectangular opening slot, 26-V-shaped avoidance groove, 27-positioning and clamping screw. DETAILED DESCRIPTION

[0025] This embodiment is described in detail below with reference to the accompanying drawings.

[0026] like Figures 1 to 7 The adjustable quick positioning device shown in the figure comprises a main body 1, a top plate 2, a sliding plate 3, a guard plate 4, an adjusting shaft 5, a fixing rod 6, a fixing cap 7, a resistance ball 8, a compression spring 9 and an adjusting nut 10, wherein the top plate 2 is arranged at the top of the main body 1, the guard plate 4 is fixedly connected to the main body 1, the sliding plate 3 is arranged between the guard plate 4 and the main body 1, and is pressed against the main body 1 through the guard plate 4, a sliding groove 11 used in conjunction with the sliding plate 3 is provided on the main body 1, the top plate 2 is fixedly connected to the top of the sliding plate 3, a main scale line 12 is provided on the side of the sliding plate 3 close to the guard plate 4, and the guard plate 4 is directly opposite to the main body 1. The main scale line 12 is provided with an opening 13, and a secondary scale line 14 used in conjunction with the main scale line 12 is provided next to the opening 13. The adjusting shaft 5 passes through the main body 1, and both ends are fixedly connected to the fixing rod 6 and the fixing cap 7 respectively. A gear 15 is fixed on the adjusting shaft 5, and a straight rack 16 used in conjunction with the gear 15 is provided on the side of the sliding plate 3 close to the adjusting shaft 5. The adjusting nut 10 passes through the guard plate 4 and is fixedly connected to the main body 1. One end of the clamping spring 9 is limited by the adjusting nut 10, and the resistance ball 8 is clamped by the other end of the clamping spring 9, and the fixing rod 6 is limited by the resistance ball 8. Among them, the fixing rod 6 and the sliding plate 3 and the guard plate 4 and the main body 1 are fixedly connected by a positioning and clamping screw 27, and the positioning and clamping screw 27 adopts a segmented structure of a positioning pin + a threaded segment; the fixing rod 6 is a three-section structure, including a large end, a middle end, and a small end, the large end is used for pressing, the small end is fixedly connected to the adjusting shaft 5, and an annular rectangular groove 17 is provided on the side of the middle end close to the large end, and an annular V-shaped groove 18 is provided on the side close to the small end; when the adjusting shaft 5 is rotated, the resistance ball 8 is located in the annular rectangular groove 17, and when the adjusting shaft 5 is locked, the resistance ball 8 is located in the annular V-shaped groove 18.

[0027] In this embodiment, the fixing cap 7 is a two-section structure, including a large end and a small end, the large end is used for rotation, and the small end is fixedly connected to the adjusting shaft 5.

[0028] In this embodiment, the small end of the fixing cap 7 is in the shape of a hollow truncated cone, the large diameter end of the truncated cone is fixedly connected to the large end of the fixing cap 7, the hollow part of the small end of the fixing cap 7 is clamped with the adjusting shaft 5, the fixing cap 7 is fixedly connected with the adjusting shaft 5 by a screw 19 passing through its large end, and when the adjusting shaft 5 is locked, the small end of the fixing cap 7 is frictionally locked with the main body 1. Among them, the hollow part of the small end of the fixing cap 7 is rectangular, the clamping part on the adjusting shaft 5 that is clamped with the fixing cap 7 is also a rectangular structure, and the central control part of the fixing rod 6 can be other shapes that are conducive to clamping, all of which are within the protection scope of the present invention.

[0029] In this embodiment, a plurality of rectangular grooves 20 are parallelly arranged on one side of the lower part of the opening 13 of the guard plate 4 close to the sliding plate 3, and a lining 21 protruding from the guard plate 4 is arranged in the rectangular groove 20. The lining 21 is to ensure that the guard plate 4 can press the sliding plate 3 tightly, while preventing the friction between the guard plate 4 and the sliding plate 3 from being too large, which is not conducive to the upward and downward adjustment of the sliding plate 3.

[0030] In this embodiment, the main body 1 is provided with a stepped hole 22 used in conjunction with the adjusting shaft 5, the fixing rod 6 and the fixing cap 7. The middle section of the stepped hole 22 is connected to the outside. The gear 15 is located in the middle section of the stepped hole 22 and is meshed with the spur rack 16.

[0031] In this embodiment, the measurement accuracy of the main scale lines 12 and the auxiliary scale lines 14 is 0.02 mm.

[0032] In this embodiment, a group of arc grooves 23 are arranged in parallel on both sides of the opening 13 of the guard plate 4 .

[0033] In this embodiment, a V-shaped positioning groove 24 is formed on the side of the main body 1 facing away from the sliding plate 3 and facing the top plate 2 , and a rectangular opening slot 25 is formed at the bottom of the V-shaped positioning groove 24 .

[0034] In this embodiment, a V-shaped avoidance groove 26 used in conjunction with the V-shaped positioning groove 24 is provided at the bottom of the main body 1 .

[0035] The specific working principle of this embodiment is as follows.

[0036] When adjusting the extension distance of the sliding plate 3, first ensure that the resistance ball 8 is engaged in the annular rectangular groove 17, rotate the large end of the fixing cap 7, and the gear 15 meshes with the sliding plate 3 to drive the sliding plate 3 to move up and down. By observing the main scale line 12 and the auxiliary scale line 13, the distance between the top plate 2 and the main body 1, that is, the extension length of the component, is determined. After adjusting the top plate 2 to a suitable position, grab the large end of the fixing rod 6 and pull it outward, and the resistance ball 8 will quickly move from the annular rectangular groove 17 to the annular V-shaped groove 18. During this process, the small end of the fixing cap 7 quickly moves toward the main body 1 and impacts with the main body 1 to achieve friction locking, thereby achieving the purpose of locking the adjustment shaft 5 and preventing the sliding plate 3 from sliding again and affecting the processing accuracy of the components.

[0037] Position the parts, clamp them in the V-shaped positioning groove 24 of the main body 1 and press them against the V-shaped avoidance groove 26 on the top of the top plate 2, press the parts with the thumb, press the arc groove 23 on the guard plate 4 with the index finger and middle finger, and clamp the lower bottom surface of the main body 1 in close contact with the positioning surface of the clamping device such as the three-jaw self-centering chuck, flat-nose pliers, and automatic pipe clamp, thereby completing the entire positioning process of the parts.

[0038] When positioning the next component of a different size, the adjustment shaft 5 must be unlocked first: press the large end of the fixing rod 6 hard, and the resistance ball 8 will quickly move from the annular V-shaped groove 18 to the annular rectangular groove 17. During this process, the small end of the fixing cap 7 will quickly move away from the main body 1, releasing the friction lock with the main body 1, thereby locking the adjustment shaft 5, and then adjust the sliding plate 3 according to the size of the component.

[0039] In this embodiment, by adjusting the scale line spacing of the secondary scale lines 14 , in coordination with the main scale lines 12 , a precision adjustment of 0.01 mm or 0.1 mm can be achieved.

[0040] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An adjustable quick positioning device, characterized in that: The invention comprises a main body, a top plate, a sliding plate, a guard plate, an adjusting shaft, a fixing rod, a fixing cap, a resistance ball, a pressing spring and an adjusting nut, wherein the top plate is arranged on the top of the main body, the guard plate is fixedly connected to the main body, the sliding plate is arranged between the guard plate and the main body, and is pressed against the main body through the guard plate, a sliding groove used in conjunction with the sliding plate is provided on the main body, the top plate is fixedly connected to the top of the sliding plate, a main scale line is provided on the side of the sliding plate close to the guard plate, an opening is provided on the guard plate opposite to the main scale line, and a sub-scale line used in conjunction with the main scale line is provided next to the opening, the adjusting shaft passes through the main body, and both ends are fixedly connected to the fixing rod and the fixing cap respectively, A gear is fixed, and a straight rack used in conjunction with the gear is provided on the side of the sliding plate close to the adjusting shaft. The adjusting nut passes through the guard plate and is fixedly connected to the main body. One end of the compression spring is limited by the adjusting nut, and the resistance ball is compressed by the other end of the compression spring, and the fixing rod is limited by the resistance ball; the fixing rod is a three-section structure, including a large end, a middle end, and a small end. The large end is used for pressing, and the small end is fixedly connected to the adjusting shaft. An annular rectangular groove is provided on the side of the middle end close to the large end, and an annular V-shaped groove is provided on the side close to the small end; when the adjusting shaft is rotated, the resistance ball is located in the annular rectangular groove, and when the adjusting shaft is locked, the resistance ball is located in the annular V-shaped groove.

2. The adjustable rapid positioning device according to claim 1, characterized in that: The fixing cap is a two-section structure, including a large end and a small end, the large end is used for rotation, and the small end is fixedly connected to the adjusting shaft.

3. The adjustable quick positioning device according to claim 2, characterized in that: The small end of the fixing cap is in the shape of a hollow frustum of a cone, the large diameter end of the frustum of a cone is fixedly connected to the large end of the fixing cap, the hollow part of the small end of the fixing cap is clamped with the adjusting shaft, and the fixing cap is fixedly connected to the adjusting shaft by a screw passing through its large end; when the adjusting shaft is locked, the small end of the fixing cap is frictionally locked with the main body.

4. The adjustable rapid positioning device according to claim 1, characterized in that: A plurality of rectangular grooves are parallelly arranged on one side of the lower opening of the guard plate close to the sliding plate, and a lining strip protruding from the guard plate is arranged in the rectangular groove.

5. The adjustable rapid positioning device according to claim 1, characterized in that: The main body is provided with a stepped hole used in conjunction with the adjusting shaft, the fixing rod and the fixing cap, the middle section of the stepped hole is connected to the outside, and the gear is located in the middle section of the stepped hole and meshed with the spur rack.

6. The adjustable rapid positioning device according to claim 1, characterized in that: The measurement accuracy of the main scale lines and the auxiliary scale lines is 0.02mm.

7. The adjustable rapid positioning device according to claim 1, characterized in that: A group of arc grooves are arranged in parallel on both sides of the opening of the guard plate.

8. The adjustable rapid positioning device according to claim 1, characterized in that: A V-shaped positioning groove is provided on one side of the main body away from the sliding plate and opposite to the top plate, and a rectangular opening slot is provided at the bottom of the V-shaped positioning groove.

9. The adjustable rapid positioning device according to claim 8, characterized in that: The bottom of the main body is provided with a V-shaped avoidance groove used in conjunction with the V-shaped positioning groove.

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