Fixing clamp for machining gear ring

Abstract

The utility model belongs to the technical field of gear ring machining, and particularly relates to a fixing clamp for machining a gear ring. The clamp comprises a clamp column and a clamping jaw plate installed at the top of the clamp column, and further comprises an inserting cylinder installed at the front end of the clamping jaw plate, and a main ejector rod part is inserted into the front end of the inserting cylinder; the positioning transverse hole is formed in the front end of the clamping jaw plate, and an auxiliary ejector rod is inserted into the positioning transverse hole; the rotating disc is arranged at the top of the clamping jaw plate, a trapezoidal lead screw is fixedly arranged at the bottom of the rotating disc, and the trapezoidal lead screw is externally connected with the inserting cylinder through a lead screw nut. The inserting cylinder is arranged in front of the clamping jaw plate, the main ejector rod part inserted into the surface of the inserting cylinder is used for extending into the tooth seams, meanwhile, the auxiliary ejector rod can be inserted into the positioning transverse hole, and when skewed teeth are handled, the main ejector rod part and the auxiliary ejector rod which are distributed up and down are stuffed into one group of tooth seams, so that the skewed teeth can be accurately positioned. And the limiting and clamping effect of the whole clamping jaw plate on the gear ring can be improved.

Description

Technical Field

[0001] This utility model relates to the field of gear ring processing technology, specifically a fixing fixture for processing gear rings. Background Technology

[0002] Gear rings are common components in mechanical design, generally used for transmission and rotation control. Their main function is to transmit the speed or torque of the prime mover from the input shaft to the output shaft, causing the output shaft to rotate at a certain angular velocity or angular displacement. In the transmission process, they also have a certain effect of deceleration and torque increase. Gear rings have a wide range of applications, used in industrial production for the transmission and drive of mechanical equipment. They are mainly divided into internal gear rings and external gear rings.

[0003] For clamping external gear rings, mechanical chucks, three-jaw chucks, or pressure plates are mainly used. For three-jaw chucks, the gear ring is clamped by contracting inward and using protrusions to abut against the tooth gaps of the external gear ring. For helical gears, two sets of protrusions adapted to the helical gears are often designed to act simultaneously between a set of tooth gaps to enhance stability. However, the positions of the two sets of protrusions are fixed. When the inclination of the helical gears is different, it is impossible to make adaptive adjustments, resulting in poor versatility.

[0004] Therefore, we propose a fixed fixture for machining gear rings to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a fixing fixture for machining gear rings, which solves the problem mentioned in the background art that for helical teeth, two sets of protrusions adapted to the helical teeth are often designed to act simultaneously between a set of tooth gaps to enhance stability. However, the positions of the two sets of protrusions are fixed, and when the inclination degree of the helical teeth is different, it is impossible to make adaptive adjustments, resulting in poor versatility.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] A fixing fixture for machining gear rings includes a fixture post and a jaw plate mounted on the top of the fixture post, and further includes:

[0010] The insert sleeve is installed at the front end of the gripper plate, and the front end of the insert sleeve is connected to the main push rod.

[0011] The positioning transverse hole is opened at the front end of the gripper plate, and an auxiliary push rod is inserted into the positioning transverse hole.

[0012] The rotating disk is located on top of the gripper plate, and a trapezoidal lead screw is fixed at the bottom of the rotating disk. The trapezoidal lead screw is connected to the insertion cylinder through a lead screw nut.

[0013] Furthermore, the gripper plate has a space inside that allows the trapezoidal lead screw to rotate and the lead screw nut to move, and the front end of the gripper plate has a slot that allows the insertion cylinder to move longitudinally.

[0014] Furthermore, two sets of positioning transverse holes are provided, and they are symmetrically distributed on both sides of the insertion cylinder.

[0015] Furthermore, a groove is provided on the top of the rotating disk, and a moving hole is provided on the top of the clamping column.

[0016] Furthermore, a positioning screw hole is provided on the surface of the auxiliary top rod that extends into the positioning transverse hole, and a locking vertical hole communicating with the positioning transverse hole is provided on the top of the gripper plate, with a positioning screw threaded longitudinally through the groove of the locking vertical hole.

[0017] Furthermore, the outer wall of the rotating disk is provided with ring-shaped distributed racks, and a top plate is fixed on the top of the gripper plate and on one side of the rotating disk.

[0018] Furthermore, a movable push plate is provided on one side of the top plate, and a spring is connected between the top plate and the movable push plate. A positioning push bar is fixed on the end face of the movable push plate near the rotating disk.

[0019] (III) Beneficial Effects

[0020] Compared with the prior art, this utility model provides a fixing fixture for machining gear rings, which has the following features:

[0021] Beneficial effects:

[0022] This invention features an insert cylinder at the front of the gripper plate and a main push rod inserted into the tooth gap. Simultaneously, an auxiliary push rod can be inserted into the positioning transverse hole. When dealing with helical teeth, the upper and lower distributed main push rods and auxiliary push rods are inserted into a set of tooth gaps, improving the overall gripping effect of the gripper plate on the tooth ring. Furthermore, the height of the main push rod can be adjusted by a rotating disk, thereby adjusting the angle formed by the main push rod and auxiliary push rod according to the inclination of the helical teeth, enhancing the gripping applicability to different helical tooth tooth rings. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is an enlarged view of the gripper plate of this utility model;

[0025] Figure 3 This is an enlarged view of the connection between the rotating disk and the movable push plate of this utility model;

[0026] Figure 4 This is a schematic diagram of the connection between the rotating disk and the trapezoidal lead screw of this utility model;

[0027] Figure 5 This is a diagram showing the separation of the auxiliary push rod and the positioning screw of this utility model.

[0028] In the diagram: 1. Clamping post; 2. Clamping jaw plate; 3. Moving hole; 4. Inserting cylinder; 5. Main push rod; 6. Rotary disk; 7. Trapezoidal lead screw; 8. Positioning horizontal hole; 9. Locking vertical hole; 10. Auxiliary push rod; 11. Positioning screw hole; 12. Positioning screw; 13. Top plate; 14. Spring; 15. Moving push plate; 16. Positioning push bar. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example

[0031] like Figure 1-5 As shown, an embodiment of this utility model provides a fixing fixture for machining gear rings, including a fixture column 1 and a jaw plate 2 mounted on the top of the fixture column 1. The fixture column 1 has a built-in three-jaw chuck structure, and the jaw plate 2 is a three-jaw flat plate. Driven by a motor, the jaw plate 2 can move towards the center and outward from the top of the fixture column 1. At the same time, three sets of moving holes 3 are opened on the surface of the fixture column 1 for connecting the jaw plate 2 with the three-jaw chuck structure.

[0032] An insert cylinder 4 is installed at the front end of the gripper plate 2. The front end of the insert cylinder 4 is connected to the main push rod 5. The front end of the insert cylinder 4 is provided with an insertion hole so that the main push rod 5 can be inserted into the insertion hole. The main push rod 5 adopts a conical design, and its front end can better extend into the tooth gap. There is a cavity in the gripper plate 2, and a trapezoidal lead screw 7 is installed longitudinally in the cavity. At the same time, a slot is provided at the front end of the gripper plate 2, which is connected to the cavity in the gripper plate 2. The rear end of the insert cylinder 4 passes through the slot, extends into the cavity, and is fixed on the surface of the lead screw nut. By rotating the trapezoidal lead screw 7, the lead screw nut will drive the insert cylinder 4 to move longitudinally, thereby adjusting the height of the main push rod 5.

[0033] In order to facilitate the rotation of the trapezoidal lead screw 7, a rotating disk 6 is provided on the gripper plate 2, so that the top of the trapezoidal lead screw 7 is fixed to the rotating disk 6, and a groove is provided on the top of the rotating disk 6. This groove is used to insert a tool to drive the rotating disk 6 to rotate.

[0034] Two sets of spaced positioning transverse holes 8 are provided at the front end of the gripper plate 2. The two sets of positioning transverse holes 8 are located on both sides of the insertion cylinder 4 and at the upper position. The auxiliary push rod 10 can be inserted horizontally into the holes of the positioning transverse holes 8. At the same time, the front end of the auxiliary push rod 10 is also conical. The auxiliary push rod 10 and the main push rod part 5 can be inserted into the tooth gap of the helical teeth at the same time. The helical teeth of different gear rings may have different inclination angles. Therefore, by adjusting the height of the main push rod part 5, the inclination angle formed by the main push rod part 5 and the auxiliary push rod 10 can be changed, so that different inclined helical teeth can be used.

[0035] To make the auxiliary push rod 10 more stable, a positioning screw hole 11 is provided on the surface of the auxiliary push rod 10 that extends into the positioning horizontal hole 8. At the same time, a locking vertical hole 9 communicating with the positioning horizontal hole 8 is opened on the top of the gripper plate 2. When the auxiliary push rod 10 is inserted, the positioning screw hole 11 is exposed at the locking vertical hole 9. At this time, a positioning screw 12 can be inserted into the locking vertical hole 9 and the positioning screw 12 is threadedly connected to the positioning screw hole 11, so that the auxiliary push rod 10 can be limited and fixed.

[0036] The outer wall of the rotating disk 6 is provided with a ring-shaped rack. A top plate 13 is fixed on the top of the gripper plate 2 and on one side of the rotating disk 6. A movable push plate 15 is provided on one side of the top plate 13. A spring 14 is connected between the top plate 13 and the movable push plate 15. A positioning push bar 16 is fixed on the end face of the movable push plate 15 near the rotating disk 6. The surfaces of the top plate 13 and the movable push plate 15 are provided with buckles that allow the end of the spring 14 to be engaged, making the spring 14 detachable. Under the elastic drive of the spring 14, the movable push plate 15 moves toward the rotating disk 6, thereby causing the positioning push bar 16 to extend into the teeth of the rotating disk 6 to prevent the rotating disk 6 from rotating on its own. The self-locking characteristic of the trapezoidal screw 7 improves the stability of the insert cylinder 4. When it is necessary to rotate the rotating disk 6, the movable push plate 15 can be pushed away from the rotating disk 6.

[0037] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A fixing fixture for machining gear rings, comprising a fixture post (1) and a jaw plate (2) mounted on the top of the fixture post (1), characterized in that, Also includes: An insert tube (4) is installed at the front end of the gripper plate (2), and the front end of the insert tube (4) is connected to the main push rod (5); A positioning transverse hole (8) is opened at the front end of the gripper plate (2), and an auxiliary push rod (10) is inserted into the hole of the positioning transverse hole (8). A rotating disk (6) is set on top of the gripper plate (2). A trapezoidal lead screw (7) is fixed at the bottom of the rotating disk (6). The trapezoidal lead screw (7) is connected to the insertion cylinder (4) through a lead screw nut.

2. The fixing fixture for machining gear rings according to claim 1, characterized in that: The gripper plate (2) has a space inside that allows the trapezoidal lead screw (7) to rotate and the lead screw nut to move, and the front end of the gripper plate (2) has a slot that allows the insertion cylinder (4) to move longitudinally.

3. The fixing fixture for machining gear rings according to claim 1, characterized in that: The positioning transverse holes (8) are provided in two sets and are symmetrically distributed on both sides of the insertion tube (4).

4. The fixing fixture for machining gear rings according to claim 1, characterized in that: The top of the rotating disk (6) is provided with a groove, and the top of the clamp column (1) is provided with a moving hole (3).

5. A fixing fixture for machining gear rings according to claim 1, characterized in that: The auxiliary top rod (10) has a positioning screw hole (11) on its surface that extends into the positioning horizontal hole (8). The top of the gripper plate (2) has a locking vertical hole (9) that communicates with the positioning horizontal hole (8). A positioning screw (12) is longitudinally inserted into the groove of the locking vertical hole (9).

6. A fixing fixture for machining gear rings according to claim 1, characterized in that: The outer wall of the rotating disk (6) is provided with annularly distributed racks, and a top plate (13) is fixed on the top of the gripper plate (2) and on one side of the rotating disk (6).

7. A fixing fixture for machining gear rings according to claim 6, characterized in that: A movable push plate (15) is provided on one side of the top plate (13), and a spring part (14) is connected between the top plate (13) and the movable push plate (15). A positioning push strip (16) is fixed on the end face of the movable push plate (15) near the rotating disk (6).

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