Clamp for automatic detection of a ring gear

Abstract

The utility model is a fixture for automatic detection of gear ring, comprising a base, the base top is equipped with an adjusting seat, the adjusting seat one end is rotatably connected with the base, the adjusting seat other end is the movable end, the both sides of adjusting seat are each equipped with a set of adjustable support mechanism, and the adjustable support mechanism is used for adjusting the angle of adjusting seat and locking, the top of adjusting seat is equipped with a clamping groove, the clamping groove is equipped with replaceable clamping block assembly, the clamping block assembly is used for clamping corresponding model gear ring, the both ends of adjusting seat top are each equipped with a fixed block, one of fixed blocks is equipped with a lead screw, the outer end of lead screw is equipped with a hand wheel, the inner end of lead screw is equipped with a sliding block, and the sliding block is rotatably connected with the lead screw, and the sliding block is used for cooperating fixed block and clamping the clamping block assembly, the utility model can adjust the clamping angle of workpiece at will according to the need of detection, and the clamping stability is high, the clamping position is less, the area of covering workpiece is small, and the detection will not be affected.

Description

Technical Field

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

[0002] When machining a gear ring, the annular blank must first be machined into a smooth surface, and then the inner or outer ring teeth are machined. After the smooth surface is machined, the dimensional accuracy needs to be checked. In order to perform comprehensive inspection and ensure high inspection accuracy, companies usually use a coordinate measuring machine (CMM) for inspection. During the CMM inspection process, the workpiece needs to be fixed, so a special fixture needs to be designed for the workpiece. Existing inspection fixtures have the following problems: they cannot be adapted to the CMM inspection of gear rings because the clamping angle cannot be adjusted; in order to ensure clamping stability and avoid workpiece slippage leading to inspection errors, the fixture needs to cover a large part of the workpiece, which means that the covered part of the workpiece cannot be inspected. Summary of the Invention

[0003] The main purpose of this utility model is to solve the problems existing in the prior art and provide a fixture for automatic detection of gear rings.

[0004] The specific solution of this utility model is as follows: a fixture for automatic detection of gear rings includes a base, an adjusting seat is mounted on the top of the base, one end of the adjusting seat is rotatably connected to the base, and the other end of the adjusting seat is a movable end. Each side of the adjusting seat is equipped with a set of adjustable support mechanisms, which are used to adjust the angle of the adjusting seat and lock it. The top of the adjusting seat is provided with a slot, in which a replaceable clamping block assembly is installed. The clamping block assembly is used to clamp gear rings of the corresponding model. Each end of the top of the adjusting seat is provided with a fixed block, one of which is equipped with a lead screw. A handwheel is mounted on the outer end of the lead screw, and a slider is mounted on the inner end of the lead screw. The slider is rotatably connected to the lead screw and is used to cooperate with the fixed block to clamp the clamping block assembly.

[0005] Furthermore, the clamping block assembly includes two clamping blocks placed opposite each other. The bottom of the clamping blocks is provided with a protrusion that matches the slot, the top of the clamping blocks is provided with a V-shaped groove, and a stop is provided on one side of the bottom of the V-shaped groove.

[0006] Furthermore, the adjustable support mechanism includes a support arm, and both the support arm and the adjustment seat have oblong through holes on their side walls. One end of the support arm is connected to the base by a bolt A, and a bolt B is installed in the oblong through hole. Bolt B is used to connect and fasten the support arm and the adjustment seat.

[0007] Furthermore, the bottom sides of the adjustment seat are provided with clearance grooves corresponding to the waist-shaped through holes.

[0008] Furthermore, the base is provided with pads to keep the adjusting seat level.

[0009] Compared with the prior art, this utility model has the following advantages: the clamping angle of the workpiece can be adjusted arbitrarily according to the testing needs, and the clamping stability is high. There are fewer clamping parts, the area of ​​the workpiece covered is small, and it will not affect the testing. Attached Figure Description

[0010] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0011] Figure 2 yes Figure 1 Top view;

[0012] Figure 3 yes Figure 2 AA view;

[0013] Figure 4 yes Figure 2 BB view;

[0014] Figure 5 yes Figure 2 CC view;

[0015] Figure 6 This is a three-dimensional schematic diagram of the clamping block of this utility model;

[0016] In the diagram: 1. Base; 2. Support arm; 3. Bolt B; 4. Bolt A; 5. Adjustment seat; 6. Fixing block; 7. Clamping block; 71. Protrusion; 72. V-groove; 73. Stop; 8. Sliding block; 9. Lead screw; 10. Pad; 11. Slot. Detailed Implementation

[0017] See Figure 1-6 This embodiment is a fixture for automatic detection of gear rings, including a base 1, an adjusting seat 5 on the top of the base 1, one end of the adjusting seat 5 being rotatably connected to the base 1, and the other end of the adjusting seat 5 being a movable end. Each side of the adjusting seat 5 is equipped with an adjustable support mechanism, which is used to adjust the angle of the adjusting seat 5 and lock it. The top of the adjusting seat 5 is provided with a slot 11, in which a replaceable clamping block 7 assembly is installed. The clamping block 7 assembly is used to clamp gear rings of the corresponding model. Each end of the top of the adjusting seat 5 is provided with a fixing block 6, one of which is equipped with a lead screw 9. A handwheel is installed at the outer end of the lead screw 9, and a slider 8 is installed at the inner end of the lead screw 9. The slider 8 is rotatably connected to the lead screw 9 and is used to cooperate with the fixing block 6 to clamp the clamping block 7 assembly.

[0018] Furthermore, the clamping block 7 assembly includes two clamping blocks 7 placed opposite each other. The bottom of the clamping block 7 is provided with a protrusion 71 that matches the slot 11, the top of the clamping block 7 is provided with a V-shaped groove 72, and the bottom side of the V-shaped groove 72 is provided with a stop 73.

[0019] The height of the stop portion 73 described in this utility model is lower than the height difference between the apex and the lowest point of the V-groove 72.

[0020] Furthermore, the adjustable support mechanism includes a support arm 2, and both the support arm 2 and the adjustment seat 5 have waist-shaped through holes on their side walls. One end of the support arm 2 is connected to the base 1 by a bolt A4. The waist-shaped through hole is fitted with a bolt B3, which is used to connect and fasten the support arm 2 and the adjustment seat 5.

[0021] Furthermore, the bottom sides of the adjusting seat 5 are provided with clearance grooves corresponding to the waist-shaped through holes.

[0022] Furthermore, the base 1 is provided with a pad 10, which is used to keep the adjusting seat 5 horizontal.

[0023] The working principle of this utility model is as follows: In most cases, the adjusting seat 5 is in a horizontal state during testing. This utility model uses a pad 10 on the base 1 to level the movable end of the adjusting seat 5.

[0024] In some cases, the workpiece needs to be clamped at an angle. In this case, the angle of the adjusting seat 5 needs to be adjusted. First, clamp the base 1 on the three-coordinate measuring machine. Then, adjust the angle of the adjusting seat 5 according to the items to be inspected on the workpiece. The adjustment process is as follows: first, loosen the bolts A4 and B3 on both sides of the support arm 2. Then, adjust the adjusting seat 5 to the appropriate angle. Finally, tighten the bolts A4 and B3. Since the bolts A4 and B3 lock the support arm 2, the adjusting seat 5 is fixed at this angle. During inspection, depending on the model of the gear ring (different models correspond to different contour shapes), select the corresponding clamping block 7, place the two clamping blocks 7 in the slot 11 and arrange them opposite each other, then place the gear ring in the V-groove 72 of the two clamping blocks 7 and clamp it by the stop part 73 of the two clamping blocks 7. Then rotate the handwheel to drive the lead screw 9 to rotate. Since the lead screw 9 is threadedly connected to the fixed block 6, the lead screw 9 will move axially, thereby driving the slider 8 to move towards the other fixed block 6, thus clamping the two clamping blocks 7 and the workpiece. After the workpiece is clamped, the coordinate measuring machine can perform automatic inspection.

Claims

1. A fixture for automatic detection of gear rings, characterized in that: The device includes a base with an adjustment seat on top. One end of the adjustment seat is rotatably connected to the base, and the other end is a movable end. Each side of the adjustment seat is equipped with an adjustable support mechanism for adjusting and locking the angle of the adjustment seat. The top of the adjustment seat has a slot containing a replaceable clamping block assembly for clamping a corresponding type of gear ring. Each end of the top of the adjustment seat has a fixed block, one of which is equipped with a lead screw. The outer end of the lead screw is equipped with a handwheel, and the inner end of the lead screw is equipped with a slider. The slider is rotatably connected to the lead screw and is used to cooperate with the fixed block to clamp the clamping block assembly.

2. The fixture for automatic detection of gear rings according to claim 1, characterized in that: The clamping block assembly includes two clamping blocks placed opposite each other. The bottom of the clamping blocks is provided with a protrusion that matches the slot, the top of the clamping blocks is provided with a V-shaped groove, and a stop is provided on one side of the bottom of the V-shaped groove.

3. The fixture for automatic detection of gear rings according to claim 1, characterized in that: The adjustable support mechanism includes a support arm, and both the support arm and the adjustment seat have a waist-shaped through hole on their side walls. One end of the support arm is connected to the base by a bolt A. A bolt B is installed in the waist-shaped through hole, and the bolt B is used to connect and fasten the support arm and the adjustment seat.

4. The fixture for automatic detection of gear rings according to claim 1, characterized in that: The bottom of the adjusting seat has clearance grooves on both sides corresponding to the waist-shaped through holes.

5. The fixture for automatic detection of gear rings according to claim 1, characterized in that: The base is equipped with pads to keep the adjusting seat level.

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