Clamp for boring lug hole of spline shaft fork

Abstract

The utility model discloses a clamp for boring a lug hole of a spline shaft fork, which comprises a base, a barrel is fixed at the top of the base, a rotating table is movably clamped in the barrel and is rotatably mounted on the base through a rotating rod, a rotary driving mechanism is mounted on the base and is used for driving the rotating rod to rotate, and a limiting groove is formed in the inner wall of the barrel. A bearing table is fixed to the top of the rotating table, supports are fixed to the two ends of the bearing table, arc-shaped clamping plates are arranged on one sides of the supports, fixing plates are fixed to one sides of the arc-shaped clamping plates, and limiting rods movably inserted into the supports are fixedly connected to one ends of the fixing plates. The utility model relates to the technical field of clamps, in particular to a clamp for boring lug holes of spline shaft forks, which can be suitable for machining the boring lug holes of the spline shaft forks of various models, and can adjust the rotation angle of the boring lug holes of the spline shaft forks clamped on the arc-shaped clamping plates to meet more machining requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a clamp used for boring ear holes of spline shaft forks. Background Art

[0002] The spline shaft fork is an important component on the non-constant speed transmission shaft. It rotates at high speed and transmits torque while its length changes at any time. At present, in the process of machine tool processing of spline shaft fork, a positioning table is mostly pre-processed on the spline shaft fork, and the positioning table on the spline shaft fork is used to cooperate with the positioning plate on the fixture to perform ear hole boring processing. The specific operation is to put the spline shaft fork into the fixture positioning plate, so that the inner hole of the positioning plate cooperates with the spline shaft fork positioning table, and then manually move the V-block tightening device on the fixture to cooperate with the spline shaft fork to tighten it, and then use the screw column to tighten the spline shaft fork through the V-block tightening device to prevent the workpiece from loosening and causing errors during the ear hole boring process. In this clamping method, the spline shaft fork positioning table and the inner hole of the positioning plate are matched with a small gap, which makes it difficult to clamp the spline shaft fork. If the size of the positioning table is too small, it will lead to too loose clamping, and the accuracy of the ear hole position is difficult to guarantee. If the size of the positioning table is too large, the spline shaft fork cannot be clamped. In addition, the parts must be manually clamped and fixed many times during the processing, which will consume a lot of time, resulting in long processing time and affecting production efficiency. In addition, some new forms of spline shaft forks do not have pre-processed positioning tables. These workpieces cannot match the current boring ear hole fixtures and need to be processed separately, which is more time-consuming and labor-intensive.

[0003] The current spline shaft fork boring ear hole fixture structure is not compact enough. During operation, the robot arm cannot accurately match the spline shaft fork with the fixture, and more manual participation is required. When the workpiece model changes, the fixture needs to be replaced. The angle cannot be adjusted after one fixation, and the continuous work cannot be automatically repeated. This makes it unsuitable for automated production lines and unable to meet new needs.

[0004] Therefore, we propose a spline shaft fork boring ear hole fixture to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a clamp for boring ear holes of a spline shaft fork, which solves the existing problems.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a clamp for boring ear holes of spline shaft forks, comprising a base, a cylinder body is fixed on the top of the base, a rotating table is movably clamped in the cylinder, the rotating table is rotatably mounted on the base through a rotating rod, a rotating drive mechanism is installed on the base for driving the rotating rod to rotate, a limiting groove is provided on the inner wall of the cylinder, a limiting protrusion movably clamped in the limiting groove is fixed on the outer periphery of the rotating table, a supporting table is fixed on the top of the rotating table, brackets are fixed at both ends of the supporting table, an arc clamping plate is provided on one side of the bracket, a fixing plate is fixed on one side of the arc clamping plate, one end of the fixing plate is fixedly connected to a limiting rod movably inserted in the bracket, a locking bolt is threadedly connected to the bracket, and one end of the locking bolt is rotatably connected to the fixing plate through a bearing.

[0007] Preferably, an inspection door is mounted on the front side of the base by bolts.

[0008] Preferably, the rotating rod is rotatably mounted on the base via a bearing, and the rotating drive mechanism includes a driven gear fixed to the bottom end of the rotating rod, one side of the driven gear is meshingly connected to a driving gear, the driving gear is fixed to the output end of the motor, and the motor is fixed inside the base via bolts.

[0009] Preferably, the inner surface dimension of the arc-shaped clamping plate is matched with the outer diameter dimension of the spline shaft fork.

[0010] Preferably, the bracket is provided with a through hole whose inner diameter is matched with the outer diameter of the limiting rod, and the limiting rod is movably inserted in the through hole.

[0011] Preferably, a threaded hole is provided on the bracket, and the locking bolt is inserted into the threaded hole and threadedly connected with the threaded hole.

[0012] Beneficial Effects

[0013] The utility model provides a clamp for boring ear holes of a spline shaft. Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. A clamp for fork boring ear holes of a spline shaft, wherein two arc-shaped clamping plates are arranged on a supporting table, and when the fork boring ear holes of the spline shaft are clamped and fixed, the spline shaft is placed between the two arc-shaped clamping plates, and the locking bolt is tightened. The arc-shaped clamping plate is driven to move by the locking bolt and the threaded connection of the bracket, and the spline shaft is clamped and fixed by the two arc-shaped clamping plates. The spacing between the two arc-shaped clamping plates is adjustable, and the clamping device can be applied to the processing of fork boring ear holes of spline shafts of various models, thereby reducing the conversion of the datums of the previous and next processes, improving the production efficiency, fixing the workpiece during the processing, improving the processing accuracy, and effectively reducing the participation of manual labor in the clamping process, reducing the labor intensity, and saving the production cost.

[0015] 2. A clamp for boring ear holes of spline shaft forks, a supporting table is fixed on a rotating table, the rotating table is rotatably installed on a base through a rotating rod, the rotating rod is driven to rotate by a rotating drive mechanism, the rotating drive mechanism includes a driven gear, a driving gear, etc., and then after the spline shaft fork boring ear hole is clamped and fixed by an arc-shaped clamping plate, the driving gear is driven to rotate by starting a motor to drive the driven gear to rotate, which can drive the rotating rod, the rotating table, and the supporting table to rotate, and then the spline shaft fork boring ear hole clamped on the arc-shaped clamping plate can be rotated to adjust the rotation angle, which can meet the needs of repeated and continuous position changes, is suitable for automated production lines, and meets more processing needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the cylinder structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the arc-shaped splint structure of the utility model.

[0020] In the figure: 1. base; 2. cylinder; 3. rotating table; 4. rotating rod; 5. rotating drive mechanism; 51. driven gear; 52. driving gear; 53. motor; 6. limiting groove; 7. limiting protrusion; 8. supporting table; 9. bracket; 10. arc-shaped clamping plate; 11. fixing plate; 12. limiting rod; 13. locking bolt; 14. inspection door. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 , the utility model provides two technical solutions:

[0023] Embodiment 1:

[0024] A clamp for boring ear holes of a spline shaft fork comprises a base 1, a cylinder 2 is fixed on the top of the base 1, a rotating table 3 is movably clamped in the cylinder 2, the rotating table 3 is rotatably installed on the base 1 through a rotating rod 4, a rotating driving mechanism 5 is installed on the base 1 for driving the rotating rod 4 to rotate, a limiting groove 6 is provided on the inner wall of the cylinder 2, a limiting protrusion 7 movably clamped in the limiting groove 6 is fixed on the outer periphery of the rotating table 3, a supporting platform 8 is fixed on the top of the rotating table 3, brackets 9 are fixed at both ends of the supporting platform 8, an arc-shaped clamping plate 10 is provided on one side of the bracket 9, a fixing plate 11 is fixed on one side of the arc-shaped clamping plate 10, one end of the fixing plate 11 is fixedly connected to a limiting rod 12 movably inserted in the bracket 9, a locking bolt 13 is threadedly connected to the bracket 9, and one end of the locking bolt 13 is rotatably connected to the fixing plate 11 through a bearing.

[0025] Embodiment 2:

[0026] A clamp for boring ear holes of a spline shaft fork comprises a base 1, a cylinder 2 is fixed on the top of the base 1, a rotating table 3 is movably clamped in the cylinder 2, the rotating table 3 is rotatably installed on the base 1 through a rotating rod 4, a rotating driving mechanism 5 is installed on the base 1 for driving the rotating rod 4 to rotate, a limiting groove 6 is provided on the inner wall of the cylinder 2, a limiting protrusion 7 movably clamped in the limiting groove 6 is fixed on the outer periphery of the rotating table 3, a supporting platform 8 is fixed on the top of the rotating table 3, brackets 9 are fixed at both ends of the supporting platform 8, an arc-shaped clamping plate 10 is provided on one side of the bracket 9, a fixing plate 11 is fixed on one side of the arc-shaped clamping plate 10, one end of the fixing plate 11 is fixedly connected to a limiting rod 12 movably inserted in the bracket 9, a locking bolt 13 is threadedly connected to the bracket 9, and one end of the locking bolt 13 is rotatably connected to the arc-shaped clamping plate 10 through a bearing.

[0027] In this embodiment, an inspection door 14 is installed on the front side of the base 1 by bolts, which is convenient for later inspection and maintenance of the inside of the base 1; the rotating rod 4 is rotatably installed on the base 1 through a bearing, and the rotation driving mechanism 5 includes a driven gear 51 fixed to the bottom end of the rotating rod 4, and a driving gear 52 is meshingly connected to one side of the driven gear 51, and the driving gear 52 is fixed to the output end of the motor 53, and the motor 53 is fixed to the inside of the base 1 by bolts. After the spline shaft fork boring ear hole is clamped and fixed by the arc clamping plate 10, the driving gear 52 is driven to rotate by starting the motor 53 to drive the driven gear 51 to rotate, which can drive the rotating rod 4, the rotating table 3, and the supporting table 8 to rotate, and then the spline shaft fork boring ear hole clamped on the arc clamping plate 10 can be rotated to adjust the angle. Section; the inner surface size of the arc clamping plate 10 is matched with the outer diameter size of the spline shaft fork, and the spline shaft fork boring ear hole is clamped and fixed by the arc clamping plate 10; a through hole with an inner diameter size matched with the outer diameter size of the limit rod 12 is opened on the bracket 9, and the limit rod 12 is movably inserted in the through hole to limit the arc clamping plate 10 when it moves to ensure stability during movement; a threaded hole is opened on the bracket 9, and a locking bolt 13 is inserted in the threaded hole and threadedly connected with the threaded hole, and the locking bolt 13 is tightened. The locking bolt 13 is threadedly connected to the bracket 9 to drive the arc clamping plate 10 to move, and the spline shaft is clamped and fixed by two arc clamping plates 10. The spacing between the two arc clamping plates 10 is adjustable, which can be suitable for the processing of various types of spline shaft fork boring ear holes.

[0028] When the clamp for fork boring ear holes of a spline shaft is used, two arc-shaped clamping plates 10 are arranged on the supporting platform 8. When the fork boring ear holes of the spline shaft are clamped and fixed, the spline shaft is placed between the two arc-shaped clamping plates 10, and the locking bolt 13 is tightened. The arc-shaped clamping plates 10 are driven to move by the threaded connection between the locking bolt 13 and the bracket 9. The spline shaft is clamped and fixed by the two arc-shaped clamping plates 10. The spacing between the two arc-shaped clamping plates 10 is adjustable, and the spline shaft can be applied to the processing of fork boring ear holes of various models of spline shafts, which reduces the conversion of the previous and next process benchmarks, improves the production efficiency, fixes the workpiece during the processing, improves the processing accuracy, and effectively reduces the participation of manual labor in the clamping process, reduces the labor intensity, Save production costs; in addition, the supporting table 8 of the utility model is fixed on the rotating table 3, and the rotating table 3 is rotatably installed on the base 1 through the rotating rod 4, and the rotating rod 4 is driven to rotate by the rotating driving mechanism 5. The rotating driving mechanism 5 includes a driven gear 51, a driving gear 52, etc., and then after the spline shaft fork boring ear hole is clamped and fixed by the arc clamping plate 10, the driving gear 52 is driven to rotate by the starting motor 53 to drive the driven gear 51 to rotate, which can drive the rotating rod 4, the rotating table 3, and the supporting table 8 to rotate, and then the spline shaft fork boring ear hole clamped on the arc clamping plate 10 can be rotated. Angle adjustment can be performed, which can meet the repeated and continuous position change work, is suitable for automated production lines, and meets more processing needs.

[0029] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] 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 fixture for boring ear holes of a spline shaft, comprising a base (1), characterized in that: A cylinder (2) is fixed on the top of the base (1), a rotating platform (3) is movably engaged in the cylinder (2), the rotating platform (3) is rotatably mounted on the base (1) via a rotating rod (4), a rotating drive mechanism (5) is mounted on the base (1) for driving the rotating rod (4) to rotate, a limiting groove (6) is provided on the inner wall of the cylinder (2), a limiting protrusion (7) movably engaged in the limiting groove (6) is fixed on the outer periphery of the rotating platform (3), and the top of the rotating platform (3) is A supporting platform (8) is fixed, and brackets (9) are fixed at both ends of the supporting platform (8). An arc-shaped clamping plate (10) is arranged on one side of the bracket (9), and a fixing plate (11) is fixed on one side of the arc-shaped clamping plate (10). One end of the fixing plate (11) is fixedly connected to a limiting rod (12) movably inserted in the bracket (9), and a locking bolt (13) is threadedly connected to the bracket (9), and one end of the locking bolt (13) is rotatably connected to the fixing plate (11) through a bearing.

2. A fixture for boring ear holes of a spline shaft according to claim 1, characterized in that: An inspection door (14) is mounted on the front side of the base (1) via bolts.

3. The fixture for boring ear holes of a spline shaft according to claim 1, characterized in that: The rotating rod (4) is rotatably mounted on the base (1) via a bearing, and the rotating drive mechanism (5) comprises a driven gear (51) fixed to the bottom end of the rotating rod (4), one side of the driven gear (51) is meshingly connected to a driving gear (52), and the driving gear (52) is fixed to the output end of a motor (53), and the motor (53) is fixed to the inside of the base (1) via bolts.

4. The fixture for boring ear holes of a spline shaft according to claim 1, characterized in that: The inner diameter of the arc-shaped clamping plate (10) is matched with the outer diameter of the spline shaft fork.

5. The fixture for boring ear holes of a spline shaft according to claim 1, characterized in that: The bracket (9) is provided with a through hole whose inner diameter matches the outer diameter of the limiting rod (12), and the limiting rod (12) is movably inserted in the through hole.

6. The fixture for boring ear holes of a spline shaft according to claim 1, characterized in that: The bracket (9) is provided with a threaded hole, and the locking bolt (13) is inserted into the threaded hole and threadedly connected with the threaded hole.

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