Bearing universal positioning clamp for detection

Abstract

The utility model provides a universal bearing positioning fixture for detection, which comprises a fixture body, a base is arranged below the fixture body, a T-shaped groove is arranged in the length direction of the base, fixing mechanisms are arranged on two sides of the fixture body, and the fixing mechanisms are clamped into the T-shaped groove for fixation. An inclined face is arranged at the matched position of the fixing mechanism and the step face of the T-shaped groove, and the fixing mechanism can rotate around the central axis of the fixing mechanism. The bearing universal positioning fixture has the advantages that the fixing mechanism with the inclined face is matched with the step face of the T-shaped groove, and the technical problem that an existing bearing universal positioning fixture is low in moving efficiency before detection is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of bearing detection, in particular to a universal bearing positioning fixture for detection. Background Art

[0002] After the production of bearings, various parts such as bearing inner rings and bearing outer rings need to be tested to ensure that the accuracy is up to standard. Otherwise, there may be problems with assembly during the later assembly process. Even if some substandard defective products can be assembled, there will be problems in later use. For example, if the coaxiality or surface roughness of the bearing inner ring and the bearing outer ring is not up to standard, the service life of the assembled bearing may be reduced, and abnormal noise may occur during operation.

[0003] Therefore, bearing testing equipment has emerged. Coaxiality, surface roughness, flatness, etc. all need to be tested with tools such as micrometers. The measurement and use of micrometers generally requires the test object (bearing) to move stably. Usually, a corresponding screw mechanism is set to ensure the stable movement of the bearing. In order to adapt to various tests, bearing universal positioning fixtures have emerged, that is, mechanisms with multiple moving directions are set to cope with various tests.

[0004] At the same time, because the specifications of the bearings to be tested are different, the distance between the testing device (micrometer) and the bearing universal positioning fixture needs to be adjusted. Because this distance is large, it is very time-consuming to adjust the moving mechanism using the set screw mechanism. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a universal bearing positioning fixture for detection, which solves the technical problem of low movement efficiency of the existing universal bearing positioning fixture before detection.

[0006] According to the embodiment of the utility model, a universal bearing positioning fixture for detection includes a fixture body, a base is provided under the fixture body, a T-shaped slot is provided in the length direction of the base, fixing mechanisms are provided on both sides of the fixture body, and the fixing mechanisms are snapped into the T-shaped slots for fixing; an inclined surface is provided at the matching position between the fixing mechanism and the step surface of the T-shaped slot, and the fixing mechanism can rotate around its own central axis.

[0007] The technical principle of the utility model is: the fixing mechanism rotates 90° so that the inclined surface is separated from the step surface of the T-slot, at which time the fixture body can be pushed to move quickly, and then quickly approach or move away from the detection device, and then the fixing mechanism is rotated 90° so that the inclined surface is pressed against the step surface of the T-slot, thereby quickly fixing the fixture body.

[0008] Compared with the prior art, the utility model has the following beneficial effects: by using a fixing mechanism with an inclined surface to cooperate with the step surface of the T-slot, the technical problem of low movement efficiency of the prior art bearing universal positioning fixture before detection is solved.

[0009] Furthermore, the fixing mechanism includes a rotating rod and a strip block installed at one end of the rotating rod, the inclined surface is arranged on the strip block, and the inclined surface is located at both sides of the rotating rod.

[0010] Furthermore, the width of the strip block is less than or equal to the width of the small end of the T-shaped slot, and the length of the strip block is greater than the width of the small end of the T-shaped slot.

[0011] Furthermore, a rubber layer is provided at the bottom of the strip block.

[0012] The rubber layer is provided to ensure that the strip block can be pressed tightly against the step surface of the T-slot.

[0013] Furthermore, a rotating handle is provided at the other end of the rotating rod, and a bearing is provided between the rotating rod and the clamp body.

[0014] Furthermore, the fixture body includes a base plate and an X-axis screw mechanism, a Y-axis screw mechanism and a rotating mechanism installed on the base plate and superimposed on each other, the fixing mechanism is arranged on the base plate, and the topmost X-axis screw mechanism, Y-axis screw mechanism or rotating mechanism is provided with a height adjustment mechanism, and the height adjustment mechanism is provided with a V-block positioning mechanism.

[0015] The X-axis screw mechanism and the Y-axis screw mechanism can achieve stable movement in the horizontal directions, the turning mechanism can perform rotational movement, the height adjustment mechanism can perform movement in the height direction, and the V-block positioning mechanism can fix the bearing, thus achieving a total of 4-dimensional movement, making the detection more flexible.

[0016] Furthermore, the rotating mechanism includes a fixed disk and a rotating handle. The center of the fixed disk and the rotating handle can be rotatably installed on the base plate, the upper side of the X-axis screw mechanism and the Y-axis screw mechanism. The end face of the fixed disk and the axis of the rotating handle are both horizontally arranged. Bevel gears are provided at the bottom of the fixed disk and one end of the rotating handle. The fixed disk is meshingly connected with the bevel gears of the rotating handle.

[0017] Furthermore, the height adjustment mechanism includes an inclined plate and a screw transmission mechanism arranged on the inclined plate, and the X-axis screw mechanism, the Y-axis screw mechanism and the screw transmission mechanism have the same structure.

[0018] Furthermore, the V-shaped block positioning mechanism includes an L-shaped plate and an inclined positioning block, the L-shaped plate is installed on the upper side of the height adjustment mechanism, and two symmetrical inclined positioning blocks are arranged on the plane at one end of the L-shaped plate, and the side of the two inclined positioning blocks close to each other is an inclined plane.

[0019] Furthermore, a double screw is provided at the lower side of the tilted positioning block, and the double screw is rotatably arranged on the L-shaped plate. The double screw is provided with two thread segments with opposite spiral lines, and the two thread segments respectively cooperate with the two tilted positioning blocks.

[0020] By using a double screw with opposite thread segments, the spacing of the tilting positioning blocks can be adjusted, so that the entire fixture body can adapt to more types of bearing components. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a top view of the universal bearing positioning fixture according to an embodiment of the utility model.

[0022] Figure 2 It is a structural schematic diagram of the fixing state of the fixing mechanism of an embodiment of the utility model.

[0023] Figure 3 for Figure 2 AA cross-sectional view.

[0024] Figure 4 It is a structural schematic diagram of the fixing mechanism in the loosened state of an embodiment of the utility model.

[0025] Figure 5 This is a schematic diagram of the structure of the clamp body according to an embodiment of the utility model.

[0026] Figure 6 It is a schematic diagram of the rotating mechanism structure of an embodiment of the utility model.

[0027] Figure 7 It is a schematic structural diagram of the height adjustment mechanism and the V-block positioning mechanism of an embodiment of the utility model.

[0028] In the above drawings: 100, base; 110, T-slot; 200, fixing mechanism; 210, rotating rod; 211, rotating handle; 220, strip block; 221, inclined surface; 222, rubber layer; 300, bottom plate; 400, X-axis screw mechanism; 500, Y-axis screw mechanism; 600, rotating mechanism; 601, bevel gear; 610, fixing plate; 620, rotating handle; 700, height adjustment mechanism; 710, tilting plate; 720, screw transmission mechanism; 800, V-block positioning mechanism; 810, L-shaped plate; 820, tilting positioning block; 821, inclined plane; 830, double screw; 831, threaded segment. DETAILED DESCRIPTION

[0029] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0030] like Figure 1The bearing universal positioning fixture for testing shown includes a fixture body, wherein a base 100 is provided under the fixture body, and a testing device is provided on the base 100 or on one side of the base 100.

[0031] like Figure 2 As shown, a T-shaped slot 110 is provided in the length direction of the base 100 , and fixing mechanisms 200 are provided on both sides of the fixture body. The fixing mechanisms 200 are inserted into the T-shaped slot 110 for fixing, so that the fixture body can be moved closer to or away from the detection device along the T-shaped slot 110 .

[0032] like Figure 3 As shown, an inclined surface 221 is provided at the joint between the fixing mechanism 200 and the step surface of the T-slot 110 . The fixing mechanism 200 can rotate around its own central axis so that the inclined surface 221 can be separated from or stuck on the step surface of the T-slot 110 .

[0033] like Figure 2-3 As shown, the fixing mechanism 200 includes a rotating rod 210 and a bar block 220 with a key installed at one end of the rotating rod 210, an inclined surface 221 is arranged on the bar block 220, and the inclined surface 221 is located at both sides of the rotating rod 210. Specifically, a rubber layer 222 is provided at the bottom of the bar block 220. When the inclined surface 221 is located at the step surface of the T-slot 110, the rubber layer 222 is in an elastic deformation state, ensuring that the inclined surface 221 can be pressed against the step surface.

[0034] like Figure 2 , 4 As shown, a rotating handle 211 is provided at the other end of the rotating rod 210 , and a bearing is provided between the rotating rod 210 and the clamp body to facilitate the rotation of the rotating rod 210 .

[0035] like Figure 2 , 4 As shown, the width h of the strip block 220 is less than or equal to the width H of the small end of the T-slot 110 , and the length L of the strip block 220 is greater than the width H of the small end of the T-slot 110 , ensuring that the inclined surface 221 of the strip block 220 can be stuck on the step surface of the T-slot 110 .

[0036] like Figure 1 , 5As shown, the fixture body includes a base plate 300 and an X-axis screw mechanism 400, a Y-axis screw mechanism 500 and a rotating mechanism 600 installed on the base plate 300 and stacked on each other, and the fixing mechanism 200 is arranged on the base plate 300, wherein the topmost X-axis screw mechanism 400, the Y-axis screw mechanism 500 or the rotating mechanism 600 is provided with a height adjustment mechanism 700, and the height adjustment mechanism 700 is provided with a V-block positioning mechanism 800 to realize the movement of four spatial axes, wherein the stacking positions of the X-axis screw mechanism 400, the Y-axis screw mechanism 500 and the rotating mechanism 600 can be arbitrarily combined. In this embodiment, the Y-axis screw mechanism 500, the X-axis screw mechanism 400 and the rotating mechanism 600 are arranged in the order from bottom to top.

[0037] like Figure 6 As shown, the rotating mechanism 600 includes a fixed disk 610 and a rotating handle 620, wherein the center of the fixed disk 610 and the rotating handle 620 can be rotatably installed on the upper side of the X-axis screw mechanism 400, and the end surface of the fixed disk 610 and the axis of the rotating handle 620 are both horizontally arranged, and a bevel gear 601 is provided at the bottom of the fixed disk 610 and one end of the rotating handle 620, and the fixed disk 610 and the rotating handle 620 bevel gear 601 are meshingly connected, and the fixed disk 610 can be driven to rotate by rotating the rotating handle 620.

[0038] like Figure 5 As shown, the height adjustment mechanism 700 includes an inclined plate 710 and a screw transmission mechanism 720 disposed on the inclined plate 710. The X-axis screw mechanism 400, the Y-axis screw mechanism 500 and the screw transmission mechanism 720 have the same structure and are all conventional screw mechanisms.

[0039] like Figure 5 , 7 As shown, the V-block positioning mechanism 800 includes an L-shaped plate 810 and an inclined positioning block 820, wherein the L-shaped plate 810 is installed on the upper side of the height adjustment mechanism 700, and two symmetrical inclined positioning blocks 820 are arranged on the plane at one end of the L-shaped plate 810, and the side where the two inclined positioning blocks 820 are close to each other is an inclined plane 821 for placing bearing components such as bearing inner ring and outer ring.

[0040] like Figure 7 As shown, a double screw 830 is provided on the lower side of the inclined positioning block 820. The double screw 830 can be rotatably set on the L-shaped plate 810. The double screw 830 is provided with two thread segments 831 with opposite spiral lines. The two thread segments 831 are respectively matched with the two inclined positioning blocks 820. By rotating the double screw 830, the two positioning blocks can be moved closer to or away from each other.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A universal bearing positioning fixture for testing, characterized in that: It comprises a clamp body, a base is provided under the clamp body, a T-shaped slot is provided in the length direction of the base, fixing mechanisms are provided on both sides of the clamp body, and the fixing mechanisms are inserted into the T-shaped slots for fixing; an inclined surface is provided at the matching position between the fixing mechanism and the step surface of the T-shaped slot, and the fixing mechanism can rotate around its own central axis; The fixing mechanism comprises a rotating rod and a strip block installed at one end of the rotating rod, the inclined surface is arranged on the strip block, and the inclined surface is located at two sides of the rotating rod; The fixture body includes a base plate and an X-axis screw mechanism, a Y-axis screw mechanism and a rotating mechanism installed on the base plate and superimposed on each other. The fixing mechanism is arranged on the base plate. The topmost X-axis screw mechanism, Y-axis screw mechanism or rotating mechanism is provided with a height adjustment mechanism, and the height adjustment mechanism is provided with a V-block positioning mechanism.

2. A universal bearing positioning fixture for detection as claimed in claim 1, characterized in that: The width of the strip block is less than or equal to the width of the small end of the T-shaped slot, and the length of the strip block is greater than the width of the small end of the T-shaped slot.

3. A universal bearing positioning fixture for detection as claimed in claim 1, characterized in that: A rubber layer is provided at the bottom of the strip block.

4. A universal bearing positioning fixture for detection as claimed in claim 1, characterized in that: A rotating handle is arranged at the other end of the rotating rod, and a bearing is arranged between the rotating rod and the clamp body.

5. The universal bearing positioning fixture for detection according to claim 1, characterized in that: The rotating mechanism includes a fixed disk and a rotating handle. The center of the fixed disk and the rotating handle can be rotatably installed on the bottom plate, the upper side of the X-axis screw mechanism and the Y-axis screw mechanism. The end face of the fixed disk and the axis of the rotating handle are both horizontally arranged. Bevel gears are provided at the bottom of the fixed disk and one end of the rotating handle. The fixed disk is meshed with the bevel gears of the rotating handle.

6. A universal bearing positioning fixture for detection as claimed in claim 1, characterized in that: The height adjustment mechanism comprises an inclined plate and a screw transmission mechanism arranged on the inclined plate, and the X-axis screw mechanism, the Y-axis screw mechanism and the screw transmission mechanism have the same structure.

7. A universal bearing positioning fixture for detection as claimed in claim 1, characterized in that: The V-shaped block positioning mechanism includes an L-shaped plate and an inclined positioning block. The L-shaped plate is installed on the upper side of the height adjustment mechanism. Two symmetrical inclined positioning blocks are arranged on the plane at one end of the L-shaped plate. The side of the two inclined positioning blocks close to each other is an inclined plane.

8. A universal bearing positioning fixture for testing as claimed in claim 7, characterized in that: A double screw is arranged at the lower side of the tilting positioning block. The double screw is rotatably arranged on the L-shaped plate. The double screw is provided with two thread segments with opposite spiral lines. The two thread segments are respectively matched with the two tilting positioning blocks.

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