CN219704211U - Shaft part indexing fixture - Google Patents

Abstract

The utility model relates to the technical field of shaft clamps, in particular to a shaft part indexing clamp. The indexing wheel comprises a bottom plate and indexing wheels which can be fastened and sleeved on the outer peripheral surface of a shaft part, wherein a plurality of positioning assemblies used for fixing the shaft part are arranged on the bottom plate, fixing assemblies are arranged on one side of the bottom plate, scale values are uniformly distributed on the outer peripheral surface of the indexing wheel, positioning holes are formed in positions corresponding to the scale values, and the fixing assemblies can be inserted into the positioning holes to fix the indexing wheel and the shaft part. And when the indexing holes and the key grooves are machined, the indexing wheels and the fixing assembly are matched to realize the equal-angle rotation of the shaft parts, so that a plurality of indexing holes or key grooves which are annularly distributed along the axle center and have the same angle are accurately machined on the surface of the shaft parts, the clamping operation is convenient and efficient, and the machining efficiency and the machining accuracy are improved.

Description

Shaft part indexing fixture

Technical Field

The utility model relates to the technical field of shaft clamps, in particular to a shaft part indexing clamp.

Background

In the lathe machining production process, indexing holes, key grooves and the like are required to be machined on the surface of shaft parts, and the shaft parts are fixed by a clamp in the existing lathe machining process. However, when a plurality of index holes or key grooves which are annularly distributed along the axis and have uniform distribution angles are required to be machined on the surface of the shaft part, the shaft part is required to be rotated at equal angles during machining, the conventional shaft part clamp cannot meet the requirement of rotating the shaft part at equal angles, the plurality of index holes or key grooves which have uniform angles are difficult to accurately machine, the machining is difficult, and the clamping efficiency of the clamp is low.

Disclosure of Invention

In order to solve one of the technical problems, the utility model provides an indexing fixture for shaft parts, which comprises a bottom plate and indexing wheels capable of being fastened and sleeved on the outer peripheral surface of the shaft parts, wherein a plurality of positioning assemblies for fixing the shaft parts are arranged on the bottom plate, fixing assemblies are arranged on one side of the bottom plate, scale values are uniformly distributed on the outer peripheral surface of the indexing wheels, positioning holes are formed in positions corresponding to the scale values, and the fixing assemblies can be inserted into the positioning holes to fix the indexing wheels and the shaft parts. And when the indexing holes and the key grooves are machined, the indexing wheels and the fixing assembly are matched to realize the equal-angle rotation of the shaft parts, so that a plurality of indexing holes or key grooves which are annularly distributed along the axle center and have the same angle are accurately machined on the surface of the shaft parts, the clamping operation is convenient and efficient, and the machining efficiency and the machining accuracy are improved.

Preferably, the fixing assembly comprises a mounting frame detachably mounted on the bottom plate and a positioning pin movably penetrating through the mounting frame, and the positioning pin is inserted into the positioning hole. And further limiting the freedom degree of rotation of the indexing wheel and the shaft part along the axis, and after a slot hole is machined, rotating the indexing wheel and the shaft part at equal angles, and further machining the next slot hole. The slotted holes on the shaft parts are uniformly distributed, and the machining precision is ensured.

Preferably, the surface of the bottom plate is provided with a plurality of first limit grooves extending along the axial direction of the shaft part, a plurality of mounting holes are formed in the first limit grooves, and the mounting frame is connected with the mounting holes. And then the mounting bracket can be along first spacing groove removal, when removing the back in place, the mounting bracket rethread screw is connected with the mounting hole to realize adjusting the position of mounting bracket according to the position of dividing wheel, make the locating pin can insert in the locating hole.

Preferably, the center of the indexing wheel is provided with a through hole for the shaft part to pass through, and a clamping component for clamping the shaft part is arranged on the inner side of the through hole. The fixed shaft part is clamped through the clamping assembly, so that the classifying wheel is fixedly connected with the shaft part relatively.

Preferably, the clamping assembly comprises a three-jaw chuck and a first locking piece, wherein the three-jaw chuck is embedded in the inner side wall of the through hole and is used for clamping shaft parts, and the first locking piece is used for adjusting the opening and locking states of the three-jaw chuck. The first locking piece can be a bolt, and the opening and locking state of the three-jaw chuck is adjusted through the first locking piece, so that the three-jaw chuck locks or loosens the shaft part.

Preferably, the positioning assembly comprises a fixed seat arranged on the bottom plate and used for bearing shaft parts, and a pressing block suspended on the fixed seat, wherein the pressing block can move up and down to press the shaft parts on the fixed seat. After the shaft parts are placed on the fixing base, the pressing blocks are driven to move up and down, and then the shaft parts on the fixing base are pressed by the pressing blocks, so that the shaft parts are fixed, the shaft parts are prevented from being shifted in position in the machining process, and the machining precision is improved.

Preferably, the fixing base is provided with a -shaped connecting block, the connecting block is connected with a second locking piece in a threaded manner, the second locking piece faces towards the end part of the fixing base and is connected with the compression block, and the second locking piece enables the compression block to face towards the fixing base to be close to or far away from the fixing base. Through knob second retaining member, and then make the compact heap be close to or keep away from towards the fixing base to realize that the compact heap presss from both sides tightly or loosens axle type part.

Preferably, V-shaped grooves for limiting shaft parts are formed in the opposite surfaces of the fixing seat and the compression block. And then the shaft parts are placed in the V-shaped grooves of the fixing seat, the radial movement of the shaft parts is limited by the V-shaped grooves, and the position accuracy is improved.

Preferably, a second limiting groove extending along the axial direction of the shaft part is formed in the surface of the bottom plate, and the fixing seat is slidably arranged in the second limiting groove. And the fixing seat can move along the second limiting groove to adjust the position, and the fixing seat is fixedly connected with the second limiting groove through a bolt after the position is adjusted.

Preferably, the second limiting groove is internally provided with a mounting groove for connecting the fixing seat, and the mounting groove extends along the axial direction of the shaft part. The bolt can be worn to put on the fixing base, and the bolt extends to the mounting groove, and then the mounting groove can play the effect of direction, is connected with the nut through the bolt simultaneously, realizes that fixing base and mounting groove can dismantle the connection, installation and dismantlement simple operation are convenient in production.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the indexing wheel is fixedly sleeved on the outer peripheral surface of the shaft part, the positioning components for fixing the shaft part are arranged on the bottom plate, the positioning components are used for positioning and fixing the shaft part, the fixing components are arranged on one side of the indexing wheel on the bottom plate, scale values are uniformly distributed on the outer peripheral surface of the indexing wheel, the positioning holes are formed at positions corresponding to each scale value, and further, when the indexing holes or key grooves are formed in the shaft part, the indexing wheel is rotated and the rotation angle of each shaft part is controlled according to the scale values, and then the positioning components can be inserted into the positioning holes, so that the indexing wheel and the shaft part are fixed after the angle is adjusted. And when the slotted hole is machined, the shaft part can rotate at equal angles through the cooperation of the indexing wheel and the fixing assembly, so that a plurality of indexing holes or key grooves which are annularly distributed along the axis and have the same angle are accurately machined on the surface of the shaft part, the clamping operation is convenient and efficient, and the machining efficiency and the machining accuracy are improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments of the present utility model or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from them without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic view of an indexing fixture for shaft-like parts according to an embodiment of the present utility model;

fig. 2 is a schematic diagram of an index wheel according to an embodiment of the present utility model.

Reference numerals

10. A bottom plate; 11. a first limit groove; 111. a mounting hole; 12. the second limit groove; 13. a mounting groove; 20. an indexing wheel; 21. positioning holes; 22. a clamping assembly; 221. a three-jaw chuck; 222. a first locking member; 30. a positioning assembly; 31. a fixing seat; 32. a compaction block; 33. a second locking member; 34. a connecting block; 40. a fixing assembly; 41. a positioning pin; 42. and (5) mounting a frame.

Detailed Description

Various embodiments of the utility model are disclosed in the following drawings, in which details of the practice are set forth in the following description for the purpose of clarity. However, it should be understood that these practical details are not to be taken as limiting the utility model. That is, in some embodiments of the utility model, these practical details are unnecessary. Moreover, for the purpose of simplifying the drawings, some conventional structures and components are shown in the drawings in a simplified schematic manner.

It should be noted that all directional indications such as up, down, left, right, front, and rear … … in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture such as that shown in the drawings, and if the particular posture is changed, the directional indication is changed accordingly.

In addition, the descriptions of the "first," "second," and the like, herein are for descriptive purposes only and are not intended to be specifically construed as order or sequence, nor are they intended to limit the utility model solely for distinguishing between components or operations described in the same technical term, but are not to be construed as indicating or implying any relative importance or order of such features. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

For a further understanding of the nature, features, and efficacy of the present utility model, the following examples are set forth in order to provide a further understanding of the utility model, and are intended to be described in connection with the accompanying drawings:

in order to solve the above-mentioned technical problems, this embodiment provides a shaft part indexing fixture, as shown in fig. 1, a base plate 10 and an indexing wheel 20 capable of being fastened and sleeved on the outer peripheral surface of a shaft part, a plurality of positioning assemblies 30 for fixing the shaft part are arranged on the base plate 10, the shaft part is sleeved with the indexing wheel 20 and then placed on the positioning assemblies 30, the positioning assemblies 30 position and fix the shaft part, a fixing assembly 40 is arranged on one side of the base plate 10, scale values are uniformly distributed on the outer peripheral surface of the indexing wheel 20, a positioning hole 21 is formed at a position corresponding to each scale value, and then when the shaft part is machined with the indexing hole or a key slot, the rotation angle of each shaft part is controlled by rotating the indexing wheel 20 according to the scale values, and then the fixing assembly 40 can be inserted into the positioning hole 21, and further the fixed indexing wheel 20 and the shaft part are realized after the angle is adjusted. And when processing indexing holes, keyway, can realize that axle class part equiangular rotation through the cooperation of index wheel 20 and fixed subassembly 40, and then realize accurately processing a plurality of indexing holes or keyway that are annular distribution and the angle is unanimous along the axle center at axle center of the surface of axle class part, clamping convenient operation and high efficiency improves machining efficiency and machining accuracy.

Specifically, after the angle is adjusted, in order to position the index wheel 20 and the shaft parts, the fixing assembly 40 includes a mounting frame 42 detachably mounted on the base plate 10, and a positioning pin 41 movably penetrating the mounting frame 42, and the positioning pin 41 is inserted into the positioning hole 21. The mounting frame 42 is disposed on the base plate 10 and is located at one side of the index wheel 20, the positioning pin 41 disposed towards the index wheel 20 is disposed through the mounting frame 42, the positioning pin 41 can be inserted into the positioning hole 21 of the index wheel 20, thereby limiting the freedom of rotation of the index wheel 20 and the shaft parts along the axis, and after one slot is processed, the index wheel 20 and the shaft parts are rotated at equal angles, thereby further processing the next slot. Since each scale value of the outer peripheral surface of the index wheel 20 corresponds to the positioning hole 21, the index wheel 20 and the shaft parts can rotate at equal angles each time, the slotted holes on the shaft parts are uniformly distributed, and the machining precision is improved.

Because the machining stroke of the lathe is limited, when the length of the shaft part is larger than the machining stroke and slots are required to be machined at different positions of the shaft part, the shaft part and the index wheel 20 need to be moved synchronously, so that the position to be machined of the shaft part is positioned in the machining stroke of the lathe, and the index wheel 20 is always clamped on the shaft part during movement. After the indexing wheel 20 and the shaft parts are moved, the fixing assembly 40 also needs to be moved to the side of the indexing wheel 20, and then the positioning pins 41 can be inserted into the positioning holes 21, therefore, a plurality of first limiting grooves 11 extending along the axial direction of the shaft parts are formed in the surface of the bottom plate 10, a plurality of mounting holes 111 are formed in the first limiting grooves 11, then the mounting frames 42 can move along the first limiting grooves 11, after moving in place, the mounting frames 42 are connected with the mounting holes 111 through screws, and therefore the positions of the mounting frames 42 can be adjusted according to the positions of the indexing wheel 20, and the positioning pins 41 can be inserted into the positioning holes 21.

In order to realize that the indexing wheel 20 is clamped on the shaft part, a through hole for the shaft part to pass through is formed in the center of the indexing wheel 20, a clamping assembly 22 for clamping the shaft part is arranged on the inner side of the through hole, and then the shaft part passes through the through hole and then clamps the fixed shaft part through the clamping assembly 22, so that the indexing wheel 20 is fixedly connected with the shaft part relatively.

Further, in the above-mentioned scheme, as shown in fig. 2, the clamping assembly 22 includes a three-jaw chuck 221 fitted into the inner sidewall of the through hole, and a first locking member 222, the three-jaw chuck 221 is used for clamping the shaft-type part, the first locking member 222 is connected to the three-jaw chuck 221, the first locking member 222 may be a bolt, and the open and locking state of the three-jaw chuck 221 is adjusted by the first locking member 222, so that the three-jaw chuck 221 locks or unlocks the shaft-type part.

After the angle between the indexing wheel 20 and the shaft parts is set, slot machining is performed through a lathe, and before machining, the shaft parts are required to be fixed, therefore, the positioning assembly 30 comprises a fixing seat 31 arranged on the bottom plate 10 and used for bearing the shaft parts, and a compressing block 32 suspended on the fixing seat 31, after the shaft parts are arranged on the fixing seat 31, the compressing block 32 is driven to move up and down, and then the compressing block 32 compresses the shaft parts on the fixing seat 31, so that the shaft parts are fixed, the shaft parts are prevented from being shifted in position in the machining process, and the machining precision is improved.

Further, in the above-mentioned scheme, be provided with the connecting block 34 that is font on the fixing base 31, the connecting block 34 is connected in the both sides of fixing base 31, threaded connection has the second retaining member 33 towards fixing base 31 on the connecting block 34, the end connection of second retaining member 33 towards fixing base 31 is in compact heap 32, and exemplary, second retaining member 33 is the bolt, through knob second retaining member 33, and then makes compact heap 32 be close to or keep away from towards fixing base 31 to realize compact heap 32 clamp or loosen axle type part.

Wherein, in order to realize spacing to axle type part, fixing base 31 and compact heap 32 opposite surface have seted up the V type groove that is used for spacing axle type part, and then axle type part is placed in the V type groove of fixing base 31, through the radial removal of V type groove restriction axle type part along it, improves the position accuracy.

The positioning components 30 are provided with a plurality of positioning components 30, and the number of the positioning components 30 can be selected according to the length of the shaft parts. Meanwhile, in order to realize that the position of each positioning component 30 can be adjusted, a second limiting groove 12 extending along the axial direction of the shaft part is formed in the surface of the bottom plate 10, the fixing seat 31 is slidably arranged in the second limiting groove 12, and then the fixing seat 31 can move along the second limiting groove 12 to adjust the position, and after the position adjustment, the fixing seat 31 is fixedly connected with the second limiting groove 12 through bolts.

Further, in the above-mentioned scheme, in order to realize the fixed connection between the fixing seat 31 and the second limiting groove 12, the second limiting groove 12 is internally provided with the mounting groove 13 for connecting the fixing seat 31, and the mounting groove 13 extends along the axial direction of the shaft part. Exemplary, can wear to put the bolt on fixing base 31, the bolt extends to in the mounting groove 13, and then the mounting groove 13 can play the effect of direction, can set up the nut simultaneously at mounting groove 13 for the opposite side on the fixing base 31, is connected with the nut through the bolt, realizes the detachable connection of fixing base 31 and bottom plate 10, and installation and dismantlement simple operation are convenient in production.

It should be noted that, because the machining stroke of the lathe is limited, when the length of the shaft part is less than or equal to twice the machining stroke of the lathe, the slot machining of any surface position of the shaft part can be completed by arranging one indexing wheel 20 and a fixing component 40, the fixing component 40 can be arranged at two ends of the machining stroke, at this time, the indexing wheel 20 needs to be sleeved at the middle position of the shaft part, and the shaft part and the indexing wheel 20 synchronously move. When the length of the shaft part is greater than twice the machining stroke, two index wheels 20 are required to finish machining the slot holes at any surface position of the shaft part, and when the slot holes are required to be machined at positions which are on the same plane and are spaced apart from each other, the distance exceeds the machining stroke of the lathe, so that the shaft part is required to move along the axial direction, and the position to be machined of the shaft part is positioned in the machining stroke of the lathe. After the shaft-type part is moved, the index wheel 20 and the fixing assembly 40 are moved to the outside of the lathe, so that the fixing assembly 40 cannot be fixedly connected, and if the index wheel 20 loosens the shaft-type part to move the shaft-type part, the shaft-type part is rotated to generate angular offset. Therefore, when the shaft part is moved, one index wheel 20 is fixedly connected with the shaft part, so that the angle of the shaft part cannot deviate, and therefore, two index wheels 20 are required to be arranged on the shaft part, when one index wheel 20 clamps and positions the shaft part, the other index wheel 20 can loosen the shaft part and move to the rear to clamp the shaft part, and the two alternative loose clamps can realize that the angle of the shaft part cannot change in the translation process.

In summary, in one or more embodiments of the present utility model, the indexing wheel is fastened and sleeved on the outer peripheral surface of the shaft part, the positioning components for fixing the shaft part are disposed on the bottom plate, the positioning components are disposed on one side of the indexing wheel and fix the shaft part, the fixing components are disposed on the bottom plate, the outer peripheral surface of the indexing wheel is uniformly distributed with scale values, and the positioning holes are formed at positions corresponding to each scale value, so that when the indexing hole or the key slot is processed on the shaft part, the rotation angle of each shaft part is controlled by rotating the indexing wheel and according to the scale values, and then the fixing components can be inserted into the positioning holes, so as to fix the indexing wheel and the shaft part after the angle is adjusted. And when the slotted hole is machined, the shaft part can rotate at equal angles through the cooperation of the indexing wheel and the fixing assembly, so that a plurality of indexing holes or key grooves which are annularly distributed along the axis and have the same angle are accurately machined on the surface of the shaft part, the clamping operation is convenient and efficient, and the machining efficiency and the machining accuracy are improved.

The above-described embodiments do not limit the scope of the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the above embodiments should be included in the scope of the present utility model.

Claims (10)

1. The utility model provides a axle type part indexing fixture which characterized in that: the device comprises a base plate (10) and a dividing wheel (20) which is tightly sleeved on the outer peripheral surface of a shaft part, wherein a plurality of positioning assemblies (30) for fixing the shaft part are arranged on the base plate (10), fixing assemblies (40) are arranged on one side of the base plate (10) and positioned on one side of the dividing wheel (20), scale values are uniformly distributed on the outer peripheral surface of the dividing wheel (20), positioning holes (21) are formed in positions corresponding to the scale values, and the fixing assemblies (40) can be inserted into the positioning holes (21) to fix the dividing wheel (20) and the shaft part.

2. The shaft-type part indexing fixture according to claim 1, wherein: the fixing assembly (40) comprises a mounting frame (42) detachably mounted on the bottom plate (10) and a positioning pin (41) movably penetrating through the mounting frame (42), and the positioning pin (41) is inserted into the positioning hole (21).

3. The shaft-type part indexing fixture according to claim 2, wherein: the surface of the bottom plate (10) is provided with a plurality of first limit grooves (11) extending along the axial direction of the shaft part, a plurality of mounting holes (111) are formed in the first limit grooves (11), and the mounting frame (42) is connected with the mounting holes (111).

4. The shaft-type part indexing fixture according to claim 1, wherein: the center of the indexing wheel (20) is provided with a through hole for the shaft parts to pass through, and a clamping assembly (22) used for clamping the shaft parts is arranged on the inner side of the through hole.

5. The shaft-type part indexing fixture of claim 4, wherein: the clamping assembly (22) comprises a three-jaw chuck (221) and a first locking piece (222), wherein the three-jaw chuck (221) is embedded in the inner side wall of the through hole, the three-jaw chuck (221) is used for clamping shaft parts, and the first locking piece (222) is used for adjusting the opening and locking states of the three-jaw chuck (221).

6. The shaft-type part indexing fixture according to claim 1, wherein: the positioning assembly (30) comprises a fixed seat (31) which is arranged on the bottom plate (10) and used for bearing shaft parts, and a pressing block (32) which is suspended on the fixed seat (31), wherein the pressing block (32) can move up and down to press the shaft parts on the fixed seat (31).

7. The shaft-type part indexing fixture of claim 6, wherein: be provided with connecting block (34) that are font on fixing base (31), threaded connection has second retaining member (33) on connecting block (34), second retaining member (33) orientation fixing base (31) end connection in compact heap (32), second retaining member (33) make compact heap (32) orientation fixing base (31) are close to or keep away from.

8. The shaft-type part indexing fixture of claim 7, wherein: v-shaped grooves for limiting shaft parts are formed in the opposite surfaces of the fixing seat (31) and the compression block (32).

9. The shaft-type part indexing fixture of claim 6, wherein: the surface of the bottom plate (10) is provided with a second limit groove (12) extending along the axial direction of the shaft part, and the fixing seat (31) is slidably arranged in the second limit groove (12).

10. The shaft-type part indexing fixture of claim 9, wherein: the second limiting groove (12) is internally provided with a mounting groove (13) for connecting the fixing seat (31), and the mounting groove (13) extends along the axial direction of the shaft part.