A factory gear tooth bending jig

Abstract

The utility model discloses a factory gear tooth bending jig, through setting up second bending ring and first bending ring etc. structure, can carry out bending detection to the gear that just is well processed on the production line, namely sampling inspection, sets the size of torsional force or torque through torque wrench, when the tooth of gear is under the torsional force or torque of the torque wrench of setting, the tooth of gear does not occur bending or does not occur breakage, then represents the bending strength of the tooth reaches the product requirement, otherwise the tooth of gear cannot reach the demand of bending strength, needs the timely stop production line and adjusts, and this kind of fast detection detection jig can avoid producing a large number of the gear of the bending strength of tooth that cannot reach the need as soon as possible, greatly saves the cost.

Description

Technical Field

[0001] This utility model relates to the technical field of gear tooth bending devices, and in particular to a gear tooth bending fixture for use in factories. Background Technology

[0002] Gear processing plants typically perform random inspections on the processed gears. One of the most important aspects of this inspection is the testing of the gear's bending strength, specifically, the magnitude of the bending force. However, this test requires precise and costly equipment to measure the actual bending strength, and it is also time-consuming. Utility Model Content

[0003] The main objective of this invention is to provide a gear tooth bending fixture for factories, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A gear bending fixture for factory use includes a first bending ring with a second bending ring at its lower end. Several insert rods pass through both the first and second bending rings simultaneously. The bottom of the second bending ring abuts against the top of a base. A first arc-shaped protrusion is located on the inner side of the first bending ring, and a second arc-shaped protrusion is located on the inner side of the second bending ring. The second arc-shaped protrusion and the first arc-shaped protrusion are positioned opposite each other. The size of the second arc-shaped protrusion on the inner side of the second bending ring is larger than that of the first arc-shaped protrusion on the inner side of the first bending ring. The lower ends of the insert rods are fixedly mounted on the base. A torque wrench is located on the upper end of the first bending ring. A connecting rod is fixedly mounted on the lower end of the torque wrench. An internal hexagonal connector is fixedly mounted on the lower end of the connecting rod. The internal hexagonal connector is compatible with a hexagonal nut. The hexagonal nut is fixed to a fixed shaft. The gear to be bent is connected to the fixed shaft via a key. The hexagonal nut abuts against the top of the gear to be bent, and the bottom of the gear abuts against the top of the base.

[0006] Preferably, the first and second bending rings are provided with through grooves, and the first and second bending rings are detachably connected to the insertion rod through the through grooves.

[0007] Compared with the prior art, this utility model has the following beneficial effects: In this utility model, by setting the second bending ring and the first bending ring, etc., the bending test of the gears that have just been processed on the production line can be performed, that is, sampling inspection. By setting the torque or torque value with a torque wrench, when the gear teeth do not bend or break under the set torque or torque of the torque wrench, it means that the bending strength of the teeth meets the product requirements. Otherwise, the gear teeth do not meet the bending strength requirements, and the production line needs to be stopped in time for adjustment. This kind of rapid detection fixture can avoid producing a large number of gears whose bending strength does not meet the requirements as early as possible, which greatly saves costs. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0009] Figure 2 This is a schematic diagram of the disassembled structure of the first bending ring and the insert rod of this utility model;

[0010] Figure 3 This is a schematic diagram showing the disassembled structure of the internal hexagonal connector and the hexagonal nut of this utility model;

[0011] Figure 4 This is a schematic diagram of the structure of the second bending ring of this utility model;

[0012] Figure 5 This is a schematic diagram showing the disassembled structure of the internal hexagonal connector and hexagonal nut of this utility model.

[0013] In the diagram: 1. First bending ring; 2. Second bending ring; 3. Base; 4. Bolt; 5. Insert rod; 6. Torque wrench; 7. Hex socket connector; 8. Hex nut; 9. Connecting rod; 10. Gear body; 11. Through groove; 12. Screw; 21. Second arc-shaped protrusion. Detailed Implementation

[0014] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0015] like Figure 1 As shown, a second bending ring 2 is provided at the lower end of the first bending ring 1, and several insertion rods 5 pass through the first bending ring 1 and the second bending ring 2 at the same time. The bottom of the second bending ring 2 abuts against the top of the base 3.

[0016] like Figure 2 As shown, a first arc-shaped protrusion is provided on the inner side of the first bending ring 1, and a second arc-shaped protrusion 21 is provided on the inner side of the second bending ring 2. The second arc-shaped protrusion 21 and the first arc-shaped protrusion are positioned opposite each other. The size of the second arc-shaped protrusion 21 on the inner side of the second bending ring 2 is larger than that of the first arc-shaped protrusion on the inner side of the first bending ring 1 (the second arc-shaped protrusion has a tooth meshing structure with the teeth of the gear 10 to be bent).

[0017] like Figure 3 and Figure 5As shown, the lower end of the insertion rod 5 is fixedly mounted on the base 3. Four sets of bolts 4 are symmetrically arranged on the base 3 (for fixing to the table surface). A torque wrench 6 is provided on the upper end of the first bending ring 1. A connecting rod 9 is fixedly mounted on the lower end of the torque wrench 6. An internal hexagon connector 7 is fixedly mounted on the lower end of the connecting rod 9. The internal hexagon connector 7 is compatible with the hexagonal nut 8 (belonging to the conventional structure of existing hexagonal nut tightening). The hexagonal nut 8 is fixed to the fixed shaft 12. The gear 10 to be bent is connected to the fixed shaft 12 by a key. The hexagonal nut 8 abuts against the top of the gear 10 to be bent, and the bottom of the gear 10 to be bent abuts against the top of the base 3.

[0018] like Figure 4 As shown, the first bending ring 1 and the second bending ring 2 are provided with through grooves 11, and the first bending ring 1 and the second bending ring 2 are detachably connected to the insertion rod 5 through the through grooves 11.

[0019] It should be noted that this utility model is a gear bending fixture for factory use. In use, the user fixes the gear 10 to be bent to the fixed shaft 12 via a key connection, which is a conventional fixing method. Then, the gear 10, the fixed shaft 12, and the hexagonal nut 8 are placed as a whole into the first bending ring 1 and the second bending ring 2. At this time, the teeth of the gear 10 to be bent and the second arc-shaped protrusion 21 inside the second bending ring 2 form a meshing structure. The bottom of the gear 10 to be bent abuts against the base 3. Then, the user engages the internal hexagonal connector 7 with the hexagonal nut 8. Next, using a torque wrench with a pre-set torque, the internal hexagon connector 7 is turned. This, via the hexagonal nut 8, causes the gear 10 to be bent to press against the second arc-shaped protrusion 21. Maintaining this condition for a certain period, if the gear teeth do not bend or break, it indicates that the bending strength of the teeth meets the product requirements. Otherwise, if the gear teeth do not meet the bending strength requirement, the production line must be stopped immediately for adjustment. This rapid testing fixture can prevent the production of a large number of gears with insufficient bending strength, significantly saving costs. After testing, the gear 10 to be bent is replaced, and the test is repeated sequentially to achieve rapid testing. When the tooth bending strength test of the gear fails, in order to prevent the tooth of the gear under test from breaking, a first arc-shaped protrusion is provided on the first bending ring 1. When the tooth of the gear 10 to be bent is bent to a certain extent, the upper part of the gear 10 to be bent abuts against the first arc-shaped protrusion, and the lower part of the gear 10 to be bent abuts against the second arc-shaped protrusion. At this time, because the contact area is large, it is not easy to bend, thus preventing the tooth of the gear 10 to be bent from breaking and popping out to injure the user, and preventing the operator of the torque wrench from having difficulty controlling it due to tooth breakage.

[0020] The gears targeted by this invention are gears with low hardness, such as those with thin teeth or low material strength.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A factory gear tooth bending jig characterized by: A second bending ring is provided at the lower end of the first bending ring. Several insert rods pass through the first and second bending rings simultaneously. The bottom of the second bending ring abuts against the top of the base. A first arc-shaped protrusion is provided on the inner side of the first bending ring, and a second arc-shaped protrusion is provided on the inner side of the second bending ring. The second arc-shaped protrusion and the first arc-shaped protrusion are positioned opposite each other. The size of the second arc-shaped protrusion on the inner side of the second bending ring is larger than that of the first arc-shaped protrusion on the inner side of the first bending ring. The lower end of the insert rod is fixedly set on the base. A torque wrench is provided at the upper end of the first bending ring. A connecting rod is fixedly set at the lower end of the torque wrench. An internal hexagonal connector is fixedly set at the lower end of the connecting rod. The internal hexagonal connector is compatible with a hexagonal nut. The hexagonal nut is fixed to a fixed shaft. The gear to be bent is connected to the fixed shaft by a key. The hexagonal nut abuts against the top of the gear to be bent, and the bottom of the gear to be bent abuts against the top of the base.

2. A factory gear tooth bending jig according to claim 1, characterized in that: The first and second bending rings are provided with through grooves, and the first and second bending rings are detachably connected to the insertion rod through the through grooves.

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