Sleeve clamp for milling key groove

Abstract

A sleeve clamp for milling a key groove comprises a milling machine workbench, an integrated supporting flat plate is detachably installed on the milling machine workbench, a first sleeve supporting seat and a second sleeve supporting seat are arranged in the middle of the integrated supporting flat plate, and the first sleeve supporting seat and the second sleeve supporting seat are oppositely arranged. An upper clamping mechanism is further arranged on the side portion of the integrated supporting flat plate and located at the lateral position between the first casing pipe supporting base and the second casing pipe supporting base, a tail top adjusting and positioning mechanism is further arranged at the end portion of the integrated supporting flat plate, and the tail top adjusting and positioning mechanism is arranged close to the second casing pipe supporting base. The first sleeve is far away from one end of the first sleeve supporting seat. The clamping device is simple in structure, can be suitable for milling key grooves of sleeve workpieces, and is stable enough in clamping mode and high enough in positioning precision.

Description

Technical Field

[0001] The utility model belongs to the technical field of processing fixtures, and in particular relates to a sleeve fixture for milling keyways. Background Art

[0002] In the processing operation of milling keyways of sleeves, high requirements are imposed on the clamping of the sleeve workpiece, and the clamping needs to be sufficiently stable. In the prior art, the patent document with the announcement number CN 211102863 U discloses a keyway milling fixture, including a base, a left guide sleeve is connected to the upper part of the base near the left end of the base, a left shock-absorbing sleeve is provided in the middle of the left guide sleeve, a horizontal through hole is provided in the middle of the left shock-absorbing sleeve, a left top is provided in the through hole, a cylinder vertical plate is provided on the left side of the left guide sleeve, a cylinder is connected to the middle position of the left side of the cylinder vertical plate, the cylinder is connected to the left end of the left top, a right guide sleeve is connected to the upper part of the base near the right end of the base, and a right shock-absorbing sleeve is provided in the middle of the right guide sleeve.

[0003] The above scheme uses a center to clamp the workpiece, and reduces the friction between the left center and the left guide sleeve, and the right center and the right guide sleeve through a shock-absorbing sleeve, thereby increasing the service life of the fixture; however, it is not suitable for keyway milling of sleeve workpieces, and the clamping method is not stable enough, and the axial positioning accuracy is not high. Summary of the invention

[0004] 1. Technical Problems Solved

[0005] In view of the deficiencies in the prior art, the utility model provides a sleeve clamp for keyway milling which has a simple structure and is suitable for sleeve workpiece keyway milling processing, and has a sufficiently stable clamping method and sufficiently high positioning accuracy.

[0006] 2. Specific technical solutions

[0007] A sleeve clamp for milling keyways includes a milling machine worktable, on which an integrated support plate is detachably mounted, a first sleeve support seat and a second sleeve support seat being arranged in the middle of the integrated support plate, the first sleeve support seat and the second sleeve support seat being arranged opposite to each other, an upper clamping mechanism being arranged on the side of the integrated support plate, and the upper clamping mechanism being located at a lateral position between the first sleeve support seat and the second sleeve support seat, a tail top adjustment and positioning mechanism being arranged at the end of the integrated support plate, the tail top adjustment and positioning mechanism being arranged close to the second sleeve support seat and away from one end of the first sleeve support seat.

[0008] Preferably: an inverted T-slot structure is provided on the milling machine workbench, and mounting hole structures are provided at both ends of the integrated supporting plate, a fastening bolt structure is installed in the mounting hole structure, the nut of the fastening bolt structure is clamped in the inverted T-slot structure, a fastening nut is sleeved on the screw portion of the fastening bolt structure, and a leveling pad structure is further provided between the fastening nut and the integrated supporting plate, an adjusting strip hole is provided in the middle of the leveling pad structure, and the fastening bolt structure passes through the adjusting strip hole.

[0009] Preferably: the first sleeve support seat is provided with a support base and an adjusting pad block structure, a positioning bayonet structure is provided on the top of the support base, the positioning bayonet structure has two opposite inclined surfaces, a screw structure is provided on the inclined surfaces, a threaded hole is provided in the middle of the adjusting pad block structure, and the adjusting pad block structure is installed on the inclined surface of the positioning bayonet structure in cooperation with the screw structure through the threaded hole.

[0010] Preferably, the adjusting pad structure is in the shape of a cylindrical block, and the positioning bayonet structure is in the shape of an inverted triangle or an inverted trapezoid.

[0011] Preferably, the upper clamping mechanism includes a clamping plate, a fastening mounting screw and a limiting rod, a mounting hole is opened in the middle of the clamping plate, the clamping plate is mounted on the fastening mounting screw through the mounting hole, the limiting rod and the fastening mounting screw are arranged side by side on an integral supporting plate, the top of the limiting rod is in contact with the lower surface of one end of the clamping plate for limiting, and a compression spring structure and a tightening nut structure are also sleeved on the tightening mounting screw, and the compression spring structure and the tightening nut structure are respectively arranged on the lower side and the upper side of the clamping plate.

[0012] Preferably, the limiting rod is a threaded rod.

[0013] Preferably, the tail top adjustment and positioning mechanism is provided with a fixed support seat, a nut structure is provided on the top of the fixed support seat, and a threaded push rod structure is installed in the nut structure.

[0014] The beneficial effects of the utility model are as follows: the casing workpiece is placed on the first casing support seat and the second casing support seat, and the first casing support seat and the second casing support seat can be rotated by adjusting the pad structure to adjust the fit with the outer wall of the casing workpiece, so that each adjusting pad structure is closely fitted with the outer wall of the casing workpiece and is more stable; then the tail top adjustment positioning mechanism is used to support the non-machined end face of the casing workpiece to complete the axial positioning, and the best is to use the different diameter gradients of the outer wall of the casing workpiece itself to be stuck on the side of the adjusting pad structure for bidirectional positioning, and the tail top adjustment mechanism is used to adjust the outer wall of the casing workpiece ... The threaded push rod structure of the positioning mechanism can be rotated to push forward so that the casing workpiece moves to the side of the adjusting pad structure and is stuck, and the side of the adjusting pad structure is an arc surface that will not scratch the workpiece; finally, the upper side of the casing workpiece is clamped by the clamping plate of the upper clamping mechanism, and the limit rod makes the clamping plate more stable, and avoids excessive rotation and compression of the clamping nut structure to damage the casing workpiece, thus completing the stable clamping and positioning of the casing workpiece in all directions, and the clamping method is stable enough, and the positioning accuracy is high enough, so it is more accurate and fast when the milling machine mills the keyways on both sides. After the processing is completed, loosen the clamping nut structure, and the compression spring structure acts on the lower surface of the clamping plate, so that the clamping plate automatically bounces upward and loosens, and then rotate the clamping plate so that it is not located above the casing workpiece, and the casing workpiece can be easily taken out, and the workpiece unloading is more convenient and the work efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic top view of the utility model as a whole.

[0016] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model as a whole from the side.

[0018] In the figure: a milling machine workbench 1; an integrated support plate 2; a first sleeve support seat 3; a second sleeve support seat 4; an upper clamping mechanism 5; a tail top adjustment and positioning mechanism 6;

[0019] Inverted T-slot structure 11; fastening bolt structure 21; fastening nut 22; leveling pad structure 23;

[0020] Support base 31; adjustment pad structure 32; positioning bayonet structure 33; screw structure 34;

[0021] Clamping plate 51; fastening screw 52; limiting rod 53; compression spring structure 54; pressing nut structure 55; fixed support seat 61; nut structure 62; threaded push rod structure 63. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features, and in the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0024] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a direct connection, it can be connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0025] like Figure 1 , Figure 2 and Figure 3 As shown: a sleeve clamp for milling keyways is provided with a milling machine worktable 1, on which an integrated supporting plate 2 is detachably mounted, a first sleeve supporting seat 3 and a second sleeve supporting seat 4 are provided in the middle of the integrated supporting plate 2, the first sleeve supporting seat 3 and the second sleeve supporting seat 4 are arranged opposite to each other, an upper clamping mechanism 5 is also provided on the side of the integrated supporting plate 2, and the upper clamping mechanism 5 is located at a lateral position between the first sleeve supporting seat 3 and the second sleeve supporting seat 4, a tail top adjusting and positioning mechanism 6 is also provided at the end of the integrated supporting plate 2, the tail top adjusting and positioning mechanism 6 is arranged close to the second sleeve supporting seat 4 and away from one end of the first sleeve supporting seat 3.

[0026] An inverted T-slot structure 11 is provided on the milling machine worktable 1, and mounting hole structures are provided at both ends of the integrated support plate 2. A fastening bolt structure 21 is installed in the mounting hole structure. The nut of the fastening bolt structure 21 is clamped in the inverted T-slot structure 11, and a fastening nut 22 is sleeved on the screw portion of the fastening bolt structure 21. A leveling pad structure 23 is also provided between the fastening nut 22 and the integrated support plate 2. An adjusting strip hole is provided in the middle of the leveling pad structure 23. The fastening bolt structure 21 passes through the adjusting strip hole and is pressed against different positions of the leveling pad structure 23 by the fastening bolt structure 21 and the fastening nut 22, so that the leveling pad structure 23 applies different center of gravity advance pressures to the integrated support plate 2, so that the integrated support plate 2 fits more stably and tends to a horizontal position on the milling machine worktable 1.

[0027] The second sleeve support seat 4 has the same structure as the first sleeve support seat 3. The first sleeve support seat 3 is provided with a support base 31 and an adjusting pad structure 32. A positioning bayonet structure 33 is provided on the top of the support base 31. The positioning bayonet structure 33 has two opposite inclined surfaces, on which a screw structure 34 is provided. A threaded hole is provided in the middle of the adjusting pad structure 32. The adjusting pad structure 32 is installed on the inclined surface of the positioning bayonet structure 33 through the threaded hole and the screw structure 34. The adjusting pad structure 32 is in the shape of a cylindrical block, and the positioning bayonet structure 33 is in the shape of an inverted triangle or an inverted trapezoid.

[0028] The upper clamping mechanism 5 includes a clamping plate 51, a fastening installation screw 52 and a limiting rod 53. A mounting hole is opened in the middle of the clamping plate 51, and the clamping plate 51 is mounted on the fastening installation screw 52 through the mounting hole. The limiting rod 53 and the fastening installation screw 52 are arranged side by side on the integral supporting plate 2. The top of the limiting rod 53 contacts and limits the lower surface of one end of the clamping plate 51, and the other end of the clamping plate 51 is pressed against the upper surface of the sleeve workpiece. The limiting rod 53 is a threaded rod, which is convenient for adjusting the height of the limiting rod 53 to be slightly lower than the clamped upper surface of the workpiece.

[0029] A compression spring structure 54 and a tightening nut structure 55 are sleeved on the tightening and installing screw rod 52 . The compression spring structure 54 and the tightening nut structure 55 are respectively arranged on the lower side and the upper side of the clamping plate 51 .

[0030] The tail top adjustment and positioning mechanism 6 is provided with a fixed support seat 61 , a nut structure 62 is provided on the top of the fixed support seat 61 , and a threaded top rod structure 63 is installed in the nut structure 62 .

[0031] The implementation principle is as follows: the casing workpiece is placed on the first casing support seat 3 and the second casing support seat 4. The first casing support seat 3 and the second casing support seat 4 can be rotated to adjust the fit with the outer wall of the casing workpiece by adjusting the pad structure 32, so that each adjusting pad structure 32 is tightly fitted with the outer wall of the casing workpiece and is more stable; then the tail top adjustment positioning mechanism 6 is used to support the non-machined end face of the casing workpiece to complete the axial positioning. It is best to use the different diameter gradients of the outer wall of the casing workpiece itself to be stuck on the side of the adjusting pad structure 32 for bidirectional positioning. The tail top adjustment positioning mechanism 6 The threaded push rod structure 63 can be rotated to push forward so that the sleeve workpiece moves to the side of the adjusting pad structure 32 and is stuck, and the side of the adjusting pad structure 32 is an arc surface that will not scratch the workpiece; finally, the upper side of the sleeve workpiece is clamped by the clamping plate 51 of the upper clamping mechanism 5, and the limit rod 53 makes the clamping plate 51 more stable, and avoids the excessive rotation and compression of the clamping nut structure 55 to damage the sleeve workpiece, so that the sleeve workpiece is clamped and positioned stably in all directions, and the clamping method is stable enough, and the positioning accuracy is high enough, so it is more accurate and fast when the milling machine mills the key grooves on both sides. After the processing is completed, the clamping nut structure 55 is loosened, and the compression spring structure 54 acts on the lower surface of the clamping plate 51, so that the clamping plate 51 automatically bounces upward and loosens, and then the clamping plate 51 is rotated so that it is not located above the sleeve workpiece, and the sleeve workpiece can be easily taken out, and the workpiece unloading is more convenient and the work efficiency is higher.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood 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 the scope of the present invention shall be defined by the appended claims.

Claims

1. A sleeve fixture for milling keyways, characterized in that: The invention comprises a milling machine worktable (1), on which an integrated support plate (2) is detachably mounted, a first sleeve support seat (3) and a second sleeve support seat (4) are arranged in the middle of the integrated support plate (2), the first sleeve support seat (3) and the second sleeve support seat (4) are arranged opposite to each other, an upper clamping mechanism (5) is also arranged on the side of the integrated support plate (2), and the upper clamping mechanism (5) is located at a lateral position between the first sleeve support seat (3) and the second sleeve support seat (4), and a tail top adjustment and positioning mechanism (6) is also arranged at the end of the integrated support plate (2), and the tail top adjustment and positioning mechanism (6) is arranged close to the second sleeve support seat (4) and away from one end of the first sleeve support seat (3).

2. The sleeve fixture for milling keyway according to claim 1, characterized in that: The milling machine worktable (1) is provided with an inverted T-shaped slot structure (11), and the two ends of the integrated support plate (2) are provided with mounting hole structures, in which a fastening bolt structure (21) is installed, and the nut of the fastening bolt structure (21) is clamped in the inverted T-shaped slot structure (11), and the screw rod of the fastening bolt structure (21) is sleeved with a fastening nut (22), and a leveling pad structure (23) is further provided between the fastening nut (22) and the integrated support plate (2), and an adjustment strip hole is provided in the middle of the leveling pad structure (23), and the fastening bolt structure (21) passes through the adjustment strip hole.

3. The sleeve fixture for milling keyway according to claim 1 or 2, characterized in that: The first sleeve support seat (3) is provided with a support base (31) and an adjusting pad structure (32); a positioning bayonet structure (33) is provided on the top of the support base (31); the positioning bayonet structure (33) has two opposite inclined surfaces, a screw structure (34) is provided on the inclined surfaces; a threaded hole is provided in the middle of the adjusting pad structure (32); the adjusting pad structure (32) is mounted on the inclined surface of the positioning bayonet structure (33) in cooperation with the screw structure (34) through the threaded hole.

4. The sleeve fixture for milling keyway according to claim 3, characterized in that: The adjusting pad block structure (32) is in the shape of a cylindrical block, and the positioning bayonet structure (33) is in the shape of an inverted triangle or an inverted trapezoid.

5. The sleeve fixture for keyway milling according to claim 1, 2 or 4, characterized in that: The upper clamping mechanism (5) comprises a clamping plate (51), a fastening installation screw (52) and a limiting rod (53). A mounting hole is provided in the middle of the clamping plate (51). The clamping plate (51) is sleeved and installed on the fastening installation screw (52) through the mounting hole. The limiting rod (53) and the fastening installation screw (52) are arranged side by side on the integral support plate (2). The top of the limiting rod (53) contacts and limits the lower surface of one end of the clamping plate (51). A compression spring structure (54) and a clamping nut structure (55) are sleeved on the fastening installation screw (52). The compression spring structure (54) and the clamping nut structure (55) are respectively arranged on the lower side and the upper side of the clamping plate (51).

6. The sleeve fixture for keyway milling according to claim 5, characterized in that: The limiting rod (53) is a threaded rod.

7. The sleeve fixture for keyway milling according to claim 1, 2, 4 or 6, characterized in that: The tail top adjustment and positioning mechanism (6) is provided with a fixed support seat (61), a nut structure (62) is provided on the top of the fixed support seat (61), and a threaded top rod structure (63) is installed in the nut structure (62).

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