Eccentric sleeve clamping tool

Abstract

The utility model provides an eccentric sleeve clamping tool which comprises a tool base, a cover plate and a positioning rod. One side face of the tool base is concavely provided with an annular groove, so that a positioning boss is formed on the side face of the tool base, and a threaded hole which is eccentric to the annular groove is formed in the positioning boss. A cover plate outer step is arranged on the side face, close to the tool base, of the cover plate, and a countersunk head groove is formed in the cover plate. The positioning rod can penetrate through the countersunk groove to be in threaded connection with the threaded hole; positioning references are all implemented on the tool base, the machining position is confirmed by taking the eccentric distance of the annular groove and the threaded hole in the tool base as the eccentric distance of the eccentric hole in the eccentric sleeve, and the machining precision of the eccentric hole is improved.

Description

Technical Field

[0001] The utility model relates to a tool, in particular to an eccentric sleeve clamping tool. Background Art

[0002] In the processing procedure of the eccentric sleeve, an eccentric hole needs to be radially opened on the cylindrical surface of the eccentric sleeve, so the eccentric sleeve needs to be positioned to ensure the processing accuracy of the eccentric hole. Summary of the invention

[0003] In view of the shortcomings of the prior art, the utility model provides an eccentric sleeve clamping tool, which implements all positioning benchmarks on the tool base, and uses the eccentric distance between the annular groove and the threaded hole on the tool base as the eccentric distance of the eccentric hole on the eccentric sleeve to confirm the processing position, thereby improving the processing accuracy of the eccentric hole. The technical solution adopted by the utility model is:

[0004] An eccentric set clamping tool, comprising

[0005] A tool base, one side of which is concavely provided with an annular groove, so that a positioning boss is formed on the side of the tool base, and a threaded hole eccentrically arranged with the annular groove is provided on the positioning boss;

[0006] A cover plate, a side of which close to the tooling base is provided with a cover plate outer step, and the cover plate is provided with a countersunk groove;

[0007] The positioning rod can penetrate the countersunk groove and be threadedly connected with the threaded hole.

[0008] Furthermore, one end of the countersunk groove extends to the cylindrical surface of the cover plate.

[0009] Furthermore, the positioning rod comprises a rod head, a rod middle portion, a rod contraction portion and a rod tail portion which are coaxially connected in sequence, the rod head portion matches the countersunk groove, and the rod tail portion is threadedly connected to the threaded hole.

[0010] Furthermore, a hexagonal socket is provided on the rod head.

[0011] Furthermore, the diameter of the rod contraction portion is smaller than that of the rod middle portion.

[0012] The advantages of the utility model are as follows: the first inner hole of the eccentric sleeve on the eccentric sleeve is positioned by the annular groove on the tooling base, and the positioning boss is fitted with the inner step of the eccentric sleeve to position the outer circle center line of the eccentric sleeve, that is, the center line of the first inner hole, so that the eccentric sleeve is arranged horizontally. During processing, the eccentric sleeve is rotated based on the center line of the threaded hole, and an eccentric hole is formed in the radial direction of the eccentric sleeve when drilling longitudinally. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an exploded view of the utility model.

[0014] Figure 2 It is a cross-sectional view of the utility model.

[0015] Figure 3 It is a schematic diagram of the assembly of the cover plate and the eccentric sleeve of the utility model.

[0016] Figure 4 It is a schematic diagram of processing the eccentric hole of the utility model.

[0017] In the figure: 100-tooling base, 110-annular groove, 120-positioning boss, 130-threaded hole, 200-cover plate, 201-outer step of cover plate, 210-countersunk groove, 211-inner step of cover plate, 300-positioning rod, 310-rod head, 311-inner hexagonal groove, 320-middle part of rod, 330-contracted part of rod, 340-tail of rod, 400-eccentric sleeve, 401-first positioning side, 402-first positioning side, 410-first inner hole of eccentric sleeve, 420-inner step of eccentric sleeve, 430-second inner hole of eccentric sleeve, 440-eccentric hole. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] Please refer to the attached Figure 1-4 The utility model provides an eccentric sleeve clamping tool, including a tool base 100, a cover plate 200, and a positioning rod 300; a side of the tool base 100 is recessed with an annular groove 110, so that a positioning boss 120 is formed on the side of the tool base 100, and a threaded hole 130 eccentrically arranged with the annular groove 110 is provided on the positioning boss 120; a side of the cover plate 200 close to the tool base 100 is provided with a cover plate outer step 201, and the cover plate 200 is provided with a countersunk groove 210; the positioning rod 300 can penetrate the countersunk groove 210 and be threadedly connected with the threaded hole 130.

[0020] In a specific embodiment, the specific structure of the eccentric sleeve 400 is as shown in the attached Figure 3 As shown, the first inner hole 410 of the eccentric sleeve and the second inner hole 430 of the eccentric sleeve coincide with the outer circle center line of the eccentric sleeve 400. Figure 1 and attached Figure 2It can be known that when the first inner hole 410 of the eccentric sleeve 400 matches the annular groove 110, the center lines of the first inner hole 410 of the eccentric sleeve, the second inner hole 430 of the eccentric sleeve and the annular groove 110 coincide, and at the same time, the first positioning side surface 401 of the eccentric sleeve 400 fits the bottom of the annular groove 110, and the eccentric sleeve inner step 420 of the eccentric sleeve 400 is stuck in the positioning boss 120, thereby realizing the circumferential and axial bidirectional positioning of the eccentric sleeve 400.

[0021] After the eccentric sleeve 400 is positioned in both circumferential and axial directions, the cover plate 200 is covered on the second positioning side surface 402 of the eccentric sleeve 400, so that the cover plate outer step 201 on the cover plate 200 is inserted into the second inner hole 430 of the eccentric sleeve, and then the positioning rod 300 is threadedly connected to the threaded hole 130 to press and fix the cover plate 200 on the eccentric sleeve 400, so that the eccentric sleeve 400 is pressed and fixed between the cover plate 200 and the tooling base 100.

[0022] During processing, the tooling base 100 is connected to the chuck, and the center line of the positioning rod 300 is horizontal, so that the eccentric sleeve 400 is placed on its side to match the drill bit that is lifted and lowered longitudinally; the tooling base 100 is rotated with the center line of the positioning rod 300 (that is, the threaded hole 130) as the rotation center, and after the eccentric sleeve 400 is driven to rotate to the desired position, the drill bit is lifted and lowered longitudinally to drill an eccentric hole in the radial direction of the eccentric sleeve 400 that is eccentric to the first inner hole 410 of the eccentric sleeve.

[0023] As a preferred embodiment of the present invention, the front face of the tooling base 100 is rectangular, and the rectangular structure is used to quickly mark the eccentric direction and distance of the threaded hole 130 , which also facilitates the clamping and positioning of the tooling base 100 .

[0024] In this application, if attached Figure 1 As shown, one end of the countersunk groove 210 extends to the cylindrical surface of the cover plate 200. Since the diameter of the positioning rod 300 is small and the inner hole diameter of the eccentric sleeve 400 is large, the cover plate 200 can be removed from the eccentric sleeve 400 along the countersunk groove 210 by simply loosening the positioning rod 300, and then the eccentric sleeve 400 can be removed along the positioning rod 300, without repeatedly disassembling the positioning rod 300, thereby speeding up the clamping speed of the eccentric sleeve 400.

[0025] In this application, please refer to the attached Figure 1 and attached Figure 4 The positioning rod 300 includes a rod head 310, a rod middle portion 320, a rod contraction portion 330 and a rod tail portion 340 which are coaxially connected in sequence. The rod head 310 matches the countersunk groove 210, and the rod tail portion 340 is threadedly connected to the threaded hole 130.

[0026] The rod head 310 can be stuck in the step 211 of the cover plate of the countersunk groove 210 to achieve the sunken installation of the positioning rod 300, so that the rod head 310 does not expose the cover plate 200, reducing the safety hazards caused by the protruding structure.

[0027] Furthermore, in order to facilitate the rotation operation of the rod head 310 , a hexagonal socket 311 is provided on the rod head 310 .

[0028] In the present application, in order to avoid the position of the drill bit during drilling, the diameter of the rod contraction portion 330 is smaller than the rod middle portion 320; by appropriately reducing the partial diameter of the positioning rod 300, a larger avoidance space can be reserved for the drill bit, thereby preventing the drill bit from overtravelling and hitting the positioning rod 300, thereby improving safety during the processing.

[0029] In summary, the present application can quickly locate the position of the eccentric sleeve, speed up the processing speed of the eccentric hole, and improve processing safety.

[0030] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to examples, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An eccentric set clamping tool, characterized in that: include A tool base (100) having a side surface recessed with an annular groove (110), so that a positioning boss (120) is formed on the side surface of the tool base (100), and a threaded hole (130) eccentrically arranged with the annular groove (110) is provided on the positioning boss (120); A cover plate (200), a side surface of which is close to the tooling base (100) is provided with a cover plate outer step (201), and a countersunk groove (210) is provided on the cover plate (200); The positioning rod (300) can penetrate the countersunk groove (210) and be threadedly connected to the threaded hole (130).

2. The eccentric sleeve clamping tool according to claim 1, characterized in that: One end of the countersunk groove (210) extends to the cylindrical surface of the cover plate (200).

3. The eccentric sleeve clamping tool according to claim 1 or 2, characterized in that: The positioning rod (300) comprises a rod head (310), a rod middle portion (320), a rod contraction portion (330) and a rod tail portion (340) which are coaxially connected in sequence; the rod head (310) matches the countersunk groove (210), and the rod tail portion (340) is threadedly connected to the threaded hole (130).

4. The eccentric sleeve clamping tool according to claim 3 is characterized in that: The rod head (310) is provided with a hexagonal socket (311).

5. The eccentric sleeve clamping tool according to claim 3, characterized in that: The diameter of the rod contraction portion (330) is smaller than that of the rod middle portion (320).

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