Clamp device for key groove machining

Abstract

The utility model relates to the related technical field of shaft key groove machining, and discloses a clamp device for key groove machining, which comprises a main body assembly, the main body assembly comprises a base on which a spring rod is arranged; the thread groove is formed in the periphery of the spring rod; a clamping assembly is further arranged on the base, and the clamping assembly comprises a sliding rail arranged at the telescopic end of a spring rod; the first fixing piece is movably connected to the sliding rail. During use, a shaft part is placed on the first fixing part, the second threaded rod is rotated to enable the second fixing part to only clamp the shaft part, then the fixing plates are manually shifted to enable the fixing plates on the two sides to be buckled to the upper portion of the sliding rail, the connecting part is rotated to drive the fixing plates to tightly press the clamping assembly so that the clamping assembly can be stably fixed, and when the other end needs to be formed, the handle is reversely rotated to loosen the clamping assembly, and then the shaft part is fixed. The problems that a traditional shaft piece clamp cannot be adjusted and fixed according to the length of a shaft piece, so that fixation is unstable, and when a double-flat-key structure is slotted, rotation is needed, and finally the positioning and symmetry precision is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field related to keyway processing of shaft parts, in particular to a clamp device for keyway processing. Background Art

[0002] A shaft is a cylindrical object that passes through the middle of a bearing, a wheel, or a gear. It is a mechanical part that supports rotating parts and rotates with them to transmit motion, torque, or bending moment. During the processing of the shaft, it is usually necessary to open a keyway on its side wall for installing a key.

[0003] When machining the keyway on the side wall of the shaft, a special clamp is required to fix and clamp the shaft; the clamp used to clamp the shaft in the prior art cannot adjust the clamping position of the clamping block on the clamp according to the length of the shaft, resulting in a poor clamping effect; in the related and technical, there is a fixing clamp that can adjust the position of the fixing piece, which can be adjusted and fixed according to the length of the shaft, but most of the shafts used now are double flat piece structures. The spindle of the double flat key structure can transmit a larger torque than the spindle of the single flat key structure. Therefore, in the field of turning and milling processing technology, a double keyway is usually opened on the surface of the spindle for setting the double flat key; when the double keyway is set on the spindle, The two keyways are symmetrically distributed about the axis of the spindle to ensure that the flat key has a higher fit accuracy when installed in the keyway, so as to improve the transmission accuracy of the spindle. Therefore, in the field of turning and milling processing technology, a double keyway is usually opened on the surface of the spindle; when the double keyway is set on the spindle, the two keyways are symmetrically distributed about the axis of the spindle to ensure that the flat key has a higher fit accuracy when installed in the keyway, so as to improve the transmission accuracy of the spindle; in the above scheme, the traditional three-jaw chuck is still used for clamping. After milling the first keyway on the spindle, it is rotated 180 degrees and the second keyway is processed on the other side of the spindle, which still has disadvantages such as low positioning and symmetry accuracy. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a clamp device for keyway processing, which has advantages and solves problems.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clamp device for keyway processing, including a main body component; the main body component includes: a base on which a spring rod is arranged; a threaded groove is opened on the outer peripheral side of the spring rod; a clamping component is also arranged on the base, and the clamping component includes: a slide rail is arranged on the telescopic end of the spring rod; a fixing member 1 is movably connected to the slide rail; a U-shaped frame is arranged on the slide rail; a threaded rod 2 is threadedly connected to the U-shaped frame; a fixing member 2 is arranged at one end of the threaded rod 2; a fixing component is also arranged on the base: the fixing component includes: a connecting member threadedly connected to the outer peripheral side of the spring rod; an H-shaped frame is rotatably connected to the connecting member; a sliding rod member is arranged on one side of the H-shaped frame; a fixing plate is movably connected to the sliding rod member; and a handle is arranged on the connecting member.

[0008] In some embodiments, multiple slide rails, fixing members, slide rods, and fixing plates are provided.

[0009] In some embodiments, the clamping assembly further includes: a threaded rod 1 disposed in one of the slide rails, and a fixing member is threadedly connected to the threaded rod 1.

[0010] In some embodiments, the threaded rod 1 is a stud, and the two fixing members 1 are mirror-imaged on the threaded rod 1.

[0011] In some embodiments, the main body component further includes: a limiting column disposed on the base.

[0012] In some embodiments, the U-shaped frame, the second threaded rod, and the second fixing member are arranged at the center of the base.

[0013] In some embodiments, the fixing assembly further includes: a limiting rod is disposed on the base, and one of the sliding rods is movably connected to the outer peripheral side of the limiting rod.

[0014] In some embodiments, the fixing assembly further includes: a support rod disposed on the sliding rod member.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a keyway processing fixture device having the following

[0017] Beneficial effects:

[0018] The utility model provides a clamping assembly and a fixing assembly. When in use, the shaft is first placed on the fixing assembly one, and the threaded rod two is rotated so that the fixing assembly two only clamps the shaft. Then the entire clamping assembly is pressed, the height of the slide rail is lower than the height of the fixing plate, and then the fixing plate is manually toggled so that the fixing plates on both sides are buckled onto the top of the slide rail. The handle is held and the connecting piece is rotated to make it move downward. Driven by the connecting piece, the fixing plate presses the clamping assembly tightly to make it stably fixed. Then the milling machine can align the shaft to open the keyway. When the other end needs to be opened, the above steps are repeated, and the handle is rotated in the opposite direction to loosen the clamping assembly. It can be fixed after rotation. This solves the problems that traditional shaft clamps cannot be adjusted and fixed according to the length of the shaft, resulting in unstable fixation, and that rotation is required when grooving the double flat key structure, which ultimately leads to low positioning and symmetry accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall structure of the utility model from another perspective;

[0021] Figure 3 It is a front view of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the slide rail section of the utility model.

[0023] In the figure:

[0024] 1. Main assembly; 11. Base; 12. Spring rod; 13. Threaded groove; 14. Limiting column.

[0025] 2. Clamping assembly; 21. Slide rail; 22. Fixing piece 1; 23. Threaded rod 1; 24. U-shaped frame; 25. Threaded rod 2; 26. Fixing piece 2.

[0026] 3. Fixing assembly; 31. Connecting piece; 32. H-shaped frame; 33. Sliding rod; 34. Fixing plate; 35. Limiting rod; 36. Handle; 37. Support rod. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0029] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0031] A shaft is a cylindrical object that is inserted in the middle of a bearing, wheel or gear. It is a mechanical part that supports rotating parts and rotates with them to transmit motion, torque or bending moment. During the processing of shafts, it is usually necessary to open a keyway on its side wall for installing a key, and a special fixture is required to fix and clamp the shaft.

[0032] In the related technology, there is a fixing fixture that can adjust the position of the fixing part, which can be adjusted and fixed according to the length of the shaft. However, when grooving the double flat key structure, the traditional three-jaw chuck is still used for clamping. After the first keyway is milled on the spindle, it is rotated 180 degrees and the second keyway is processed on the other side of the spindle. However, there are still disadvantages such as low positioning and symmetry accuracy.

[0033] In order to solve the problems in the related technology to a certain extent, an embodiment of the present application provides a clamp for keyway processing. Although this solution adopts the three-claw fixing method, a fixing component 3 that can be used for fixing after rotation is added under the adjusting component. Although it still rotates 180 degrees, the fixed shaft and base 11 that need to be keyed and the fixing component 3 do not rotate with it. After the shaft rotates, the original appearance is guaranteed to be fixed, which greatly increases the accuracy of double keyway processing.

[0034] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0035] Combination Figure 1-Figure 4 The embodiment of the present application provides a clamp device for keyway processing, including a main body component 1; the main body component 1 includes: a base 11 on which a spring rod 12 is arranged; a threaded groove 13 is opened on the outer peripheral side of the spring rod 12; a clamping component 2 is also arranged on the base 11, and the clamping component 2 includes: a slide rail 21 is arranged on the telescopic end of the spring rod 12; a fixing member 22 is movably connected to the slide rail 21; a U-shaped frame 24 is arranged on the slide rail 21; a threaded rod 25 is threadedly connected to the U-shaped frame 24; a fixing member 26 is arranged at one end of the threaded rod 25; a fixing component 3 is also arranged on the base 11: the fixing component 3 includes: a connecting member 31 is threadedly connected to the outer peripheral side of the spring rod 12; an H-shaped frame 32 is rotatably connected to the connecting member 31; a sliding rod member 33 is arranged on one side of the H-shaped frame 32; a fixing plate 34 is movably connected to the sliding rod member 33; and a handle 36 is arranged on the connecting member 31.

[0036] When using the device to open a keyway for a shaft, manually place the shaft onto the fixing part 22, try to place it in the center position, then rotate the threaded rod 25 so that the fixing part 26 only clamps the shaft, and then press the entire clamping assembly 2, the height of the slide rail 21 is lower than the height of the fixing plate 34, and then manually move the fixing plate 34 so that the fixing plates 34 on both sides are snapped onto the top of the slide rail 21, hold the handle 36, and rotate the connecting part 31 to make it move downward. Driven by the connecting part 31, the fixing plate 34 presses the clamping assembly 2 to make it stable and fixed, and then the milling machine can align the shaft to open the keyway. When the other end needs to be opened, repeat the above steps, rotate the handle 36 in the opposite direction, loosen the clamping assembly 2, and then fix it after rotation. The device greatly reduces the error during steering and the stability of incremental double-sided grooving.

[0037] Specifically, the device rotates downward on the spring rod 12 through the connecting piece 31, and drives the fixing plate 34 to fasten the clamping component 2. The handle 36 is used to drive it to rotate. The rotation range here is very small, and only about sixty degrees of rotation is needed to achieve the process of loosening the clamping component 2 to a tight fixation. Therefore, there will be no motion interference caused by the position relationship of the limit column 14.

[0038] In some embodiments, the slide rail 21, the fixing member 22, the slide bar 33, and the fixing plate 34 are all provided in plurality. The provision of a plurality of them can make the two sides symmetrical, facilitate fixation, and increase the stability of fixation.

[0039] In some embodiments, the clamping assembly 2 also includes: a threaded rod 23 is arranged in one of the slide rails 21, and a fixing member 22 is threadedly connected to the threaded rod 23. The threaded rod 23 can adjust the distance between the two fixing members 22 by rotating itself, which greatly increases its convenience.

[0040] In some embodiments, the threaded rod 23 is a stud, and the two fixing members 22 are mirror-imaged on the threaded rod 23 . The stud can satisfy the above-mentioned synchronous adjustment of the distance between the two fixing members 22 .

[0041] In some embodiments, the main body component 1 further includes: a limiting column 14 disposed on the base 11, and the limiting column 14 is a support to ensure that the clamping component 2 reaches a suitable height during the downward pressing process.

[0042] In some embodiments, the U-shaped frame 24, the second threaded rod 25, and the second fixing member 26 are disposed at the center of the base 11, which can best achieve the fixing and position determination of the shaft.

[0043] In some embodiments, the fixing assembly 3 also includes: a limiting rod 35 is arranged on the base 11, and one of the sliding rods 33 is movably connected to the outer peripheral side of the limiting rod 35. The limiting rod 35 can realize the vertical downward movement of the fixing plate 34 and will not rotate with the connecting member 31.

[0044] In some embodiments, the fixing assembly 3 further includes: a support rod 37 disposed on the sliding rod 33, and the support rod 37 can make the sliding rod 33 present a stable triangle to prevent it from breaking due to excessive force during fixing. In the description of this specification, the description of reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0045] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A clamping device for keyway processing, characterized in that: The invention comprises a main body component (1); the main body component (1) comprises: A base (11) on which a spring rod (12) is arranged; A thread groove (13) is formed on the outer peripheral side of the spring rod (12); The base (11) is also provided with a clamping assembly (2), and the clamping assembly (2) comprises: A slide rail (21) is arranged at the telescopic end of the spring rod (12); A fixing member (22) movably connected to the slide rail (21); A U-shaped frame (24) is arranged on the slide rail (21); A second threaded rod (25) threadedly connected to the U-shaped frame (24); A second fixing member (26) is arranged at one end of the second threaded rod (25); The base (11) is also provided with a fixing component (3). The fixing component (3) comprises: A connecting member (31) threadedly connected to the outer peripheral side of the spring rod (12); An H-shaped frame (32) rotatably connected to the connecting member (31); A sliding rod (33) is arranged on one side of the H-shaped frame (32); A fixed plate (34) movably connected to the sliding rod (33); A handle (36) is arranged on the connecting member (31).

2. A keyway processing fixture device according to claim 1, characterized in that: The slide rail (21), the fixing member 1 (22), the slide bar (33), and the fixing plate (34) are all provided in plurality.

3. A keyway processing fixture device according to claim 1, characterized in that: The clamping assembly (2) further comprises: A threaded rod (23) is disposed in one of the slide rails (21), and the fixing member (22) is threadedly connected to the threaded rod (23).

4. A keyway processing fixture device according to claim 3, characterized in that: The threaded rod 1 (23) is a double-headed stud, and the two fixing members 1 (22) are mirror-imaged on the threaded rod 1 (23).

5. A keyway processing fixture device according to claim 1, characterized in that: The main body component (1) further comprises: The limiting column (14) is arranged on the base (11).

6. A keyway processing fixture device according to claim 1, characterized in that: The U-shaped frame (24), the second threaded rod (25), and the second fixing member (26) are arranged at the center of the base (11).

7. A keyway processing fixture device according to claim 1, characterized in that: The fixing assembly (3) further comprises: A limiting rod (35) is arranged on the base (11), and one of the sliding rods (33) is movably connected to the outer peripheral side of the limiting rod (35).

8. A keyway processing fixture device according to claim 1, characterized in that: The fixing assembly (3) further comprises: A support rod (37) is arranged on the sliding rod (33).

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