Plane testing fixture for ball cage type part system

Abstract

The utility model discloses a spherical cage type part system plane testing fixture, which comprises a first base, a triangular rib, a bottom plate, a second base, a bearing positioning seat, a main shaft, a measuring arm, a measuring ball, a gauge stand, a correction gauge, a dial gauge and a bearing. According to the ball cage type part system plane testing fixture, a measuring ball head can be better locked through a mode that product parts are placed in an inclined plane mode, and the locking state of the measuring ball is guaranteed; the device can quickly and effectively measure the difference between the actual ball groove ball center distance of a workpiece and the ball center distance of a standard part, improves the production efficiency of products, solves the problems of strict use conditions and low detection speed of traditional measurement equipment, provides a new solution for the detection of a ball cage system plane in an automobile transmission system, and is suitable for popularization and application. And the operation difficulty and the labor intensity of operators are reduced, so that the stability of the product detection precision is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of inspection tools and relates to a flat inspection tool for a ball cage part system. Background Art

[0002] During the machining production process of the inclined groove ball cage parts, the first inspection time is often too long. Especially during large-scale production, we are limited by the detection equipment or detection methods. The traditional measurement method for the system plane is to use coordinate measuring machines, which cannot achieve rapid detection of workpieces in large-scale production, resulting in poor phenomena such as low production efficiency. The present invention fully utilizes the tangent trigonometric function of the ball path to convert the center distance of the ball path into the height of the system plane, thereby obtaining a numerical value. Through this inspection tool, the difference between the actual center distance between the ball paths of the workpieces and the center distance of the standard cross-ball distance can be quickly and effectively measured, improving the production efficiency of the product. It not only solves the problems of cumbersome detection and slow speed of traditional measurement equipment, but also provides a new solution for the detection of the system plane of product parts in the automotive transmission system, reducing the operation difficulty and labor intensity of operators, and thus improving the competitiveness of the product.

[0003] Therefore, a flat inspection tool for a ball cage part system is needed to solve the above technical problems. Content of the Utility Model

[0004] The purpose of the utility model is to solve the defects existing in the prior art and propose a flat inspection tool for a ball cage part system.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A flat inspection tool for a ball cage part system includes a first base, a triangular rib, a bottom plate, a second base, a bearing positioning seat, a main shaft, a measuring arm, a ball, a dial indicator base, a calibration gauge, a micrometer and a bearing;

[0007] The bottom of the triangular rib is fixed on the first base, and one side of the triangular rib is provided with an inclined surface;

[0008] The bottom plate is arranged on the inclined surface, the bottom plate is provided with a through hole, and the bearing positioning seat is arranged in the through hole. One end of the main shaft is connected to the bearing positioning seat through a bearing;

[0009] The second base is arranged on one side of the bottom plate away from the triangular rib, and the second base is provided with an annular hole;

[0010] One end of the main shaft close to the second base is provided with a first support rod, and one end of the bearing positioning seat close to the second base is provided with a second support rod. Both the first support rod and the second support rod pass through the annular hole;

[0011] The measuring balls are arranged on both the first support rod and the second support rod.

[0012] A dial gauge base is arranged on one side of the base plate close to the triangular rib, and a micrometer is arranged on the dial gauge base; a measuring arm is arranged at the other end of the main shaft.

[0013] The micrometer is arranged corresponding to the measuring arm.

[0014] Furthermore, the inclined plane forms a 60° angle with the first base.

[0015] Furthermore, the micrometer is a digital display micrometer.

[0016] Furthermore, the measuring arm is connected to the main shaft through a first screw.

[0017] Furthermore, the measuring ball is connected to the support rod through a compression screw.

[0018] Furthermore, steel ball height adjustment washers are arranged on both the first support rod and the second support rod. By adjusting the thickness of the washers, the height of the measuring ball is adjusted.

[0019] Furthermore, the bearing positioning seat is connected to the base plate through a second screw.

[0020] Furthermore, a fixed bracket is arranged on one side of the dial gauge base away from the base plate, and the micrometer is arranged on the fixed bracket.

[0021] Furthermore, two triangular ribs are arranged on the first base, and the base plate is fixed through the two triangular ribs.

[0022] Furthermore, a positioning hole is arranged in the middle of the bearing positioning seat, a sector-shaped notch is arranged at one end of the bearing positioning seat close to the second base, a sector-shaped protrusion is arranged at one end of the main shaft close to the second base, the sector-shaped protrusion is arranged in the sector-shaped notch, the angle of the sector-shaped protrusion is smaller than that of the sector-shaped notch, and the first support rod is arranged on the sector-shaped protrusion.

[0023] Advantageous effects: The planar gauge for ball cage parts system of the present utility model can better lock the ball head of the measuring ball and ensure the locked state of the measuring ball by placing the product part on the inclined plane; it can quickly and effectively measure the difference between the actual ball path ball center distance of the workpiece and the ball center distance of the standard part, improve the production efficiency of the product, not only solve the problems of strict use conditions and slow detection speed of traditional measuring equipment, but also provide a new solution for the detection of the planar of the ball cage system in the automotive transmission system, reduce the operation difficulty and labor intensity of the operator, and thus ensure the stability of the product detection accuracy. Description of the Drawings

[0024] Figure 1 It is the front view of the planar gauge for the constant velocity joint part system;

[0025] Figure 2 It is the sectional view taken along the A-A direction of the planar gauge for the constant velocity joint part system;

[0026] Figure 3 It is the sectional view taken along the C direction of the planar gauge for the constant velocity joint part system;

[0027] Figure 4 It is the structural schematic diagram of the base;

[0028] Figure 5 It is the structural schematic diagram of the triangular rib;

[0029] Figure 6 It is the structural schematic diagram of the floor;

[0030] Figure 7 It is the structural schematic diagram of the base;

[0031] Figure 8 It is the structural schematic diagram of the bearing positioning seat;

[0032] Figure 9 It is the structural schematic diagram of the main shaft;

[0033] Figure 10 It is the structural schematic diagram of the nut;

[0034] Figure 11 It is the structural schematic diagram of the measuring arm;

[0035] Figure 12 It is the structural schematic diagram of the measuring ball;

[0036] Figure 13 It is the structural schematic diagram of the steel ball height adjusting gasket;

[0037] Figure 14 It is the structural schematic diagram of the compression screw;

[0038] Figure 15 It is the structural schematic diagram of the dial gauge base;

[0039] Figure 16 It is the structural schematic diagram of the alignment gauge;

[0040] Figure 17 It is the side view of the planar gauge for the constant velocity joint part system;

[0041] Figure 18 It is the three-dimensional view of the planar gauge for the constant velocity joint part system. Detailed implementation manners

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0043] Please refer to Figures 1-18 As shown, the planar gauge for the constant velocity joint parts system of the present invention includes a first base 001, a triangular rib 002, a bottom plate 003, a second base 004, a bearing positioning seat 005, a main shaft 006, a measuring arm 008, a measuring ball 009, a gauge block 012, a calibration gauge 013, a micrometer 014 and a bearing 015. Among them, the bottom of the triangular rib 002 is fixed on the first base 001, and one side of the triangular rib 002 is provided with an inclined surface. Preferably, two triangular ribs 002 are provided on the first base 001, and the bottom plate 003 is fixed by the two triangular ribs 002.

[0044] The bottom plate 003 is arranged on the inclined surface. The bottom plate 003 is provided with a through hole, and the bearing positioning seat 005 is arranged in the through hole. One end of the main shaft 006 is connected to the bearing positioning seat 005 through the bearing 015. Preferably, the bearing positioning seat 005 is connected to the bottom plate 003 through a second screw 017. Preferably, the inclined surface forms a 60° angle with the first base 001.

[0045] Specifically, a second base 004 is arranged on one side of the bottom plate 003 away from the triangular rib 002, and the second base 004 is provided with an annular hole. One end of the main shaft 006 close to the second base 004 is provided with a first support rod, and one end of the bearing positioning seat 005 close to the second base 004 is provided with a second support rod. Both the first support rod and the second support rod pass through the annular hole. Measuring balls 009 are arranged on both the first support rod and the second support rod. Preferably, steel ball height adjustment washers 010 are arranged on both the first support rod and the second support rod. By adjusting the thickness of the washer, the height of the measuring ball is adjusted. Preferably, the measuring ball 009 is connected to the first support rod and the second support rod through a compression screw 011.

[0046] Preferably, a positioning hole is arranged in the middle of the bearing positioning seat 005. One end of the bearing positioning seat 005 close to the second base 004 is provided with a fan-shaped notch. The main shaft includes a fan-shaped protrusion arranged at one end close to the second base 004. The fan-shaped protrusion is arranged in the fan-shaped notch. The angle of the fan-shaped protrusion is smaller than that of the fan-shaped notch, and the first support rod is arranged on the fan-shaped protrusion.

[0047] Specifically, a base 012 is provided on one side of the base plate 003 close to the triangular rib 002, and a micrometer 014 is provided on the base plate 012. A measuring arm 008 is provided on the other end of the spindle 006. The micrometer 014 is provided corresponding to the measuring arm 008. Preferably, the measuring arm 008 is connected to the spindle by a first screw 016. Preferably, the micrometer 014 is a digital micrometer. Preferably, the measuring arm 008 is in the shape of an elongated strip, and a fixing hole is provided in the middle, and the fixing hole position is connected to the spindle by a first screw 016. The measuring head of the micrometer 014 corresponds to one end of the measuring arm 008, and is used to measure the height of the system plane after the lever is magnified to read the value. Preferably, a fixed bracket is provided on the side of the base plate 012 away from the base plate 003, and the micrometer 014 is provided on the fixed bracket. It is convenient to adjust the position of the micrometer 014 through the fixed bracket.

[0048] The present invention uses a plane inspection fixture to inspect parts of inclined groove ball cage parts, which greatly improves efficiency compared with traditional methods. It has the characteristics of fast and stable inspection and low requirements for environmental conditions, and is suitable for rapid inspection of inclined groove ball cage parts during production.

[0049] Working method: First, use the standard cross-ball distance center distance calibration standard to "zero" the inspection fixture, clamp and position the product through two measuring balls and place the product on the inclined plane, and the horizontal distance change of the front and rear cross-ball distance center distance drives the spindle and the measuring arm to touch the needle, so that the micrometer can read quickly. Figure 16 , the calibration standard is the ring gauge.

[0050] Working principle of detection: First, use a measuring ball to contact the ballway to clamp the product. The tangent trigonometric function of the right triangle constructed by the ballway is converted from the center distance of the measuring ball in the horizontal direction into the height change of the product part system plane in the vertical direction. Then, the digital micrometer reads the value of the system plane height after the lever is magnified.

[0051] System plane distance ±0.1 / ±0.0243=4.1152;

[0052] Directly measure the lever: 129.6288 / 31.5=4.1152.

[0053] Step 1: Use a ring gauge with a standard cross-ball center distance of 24 ± 0.005, i.e., a calibration gauge, to “zero” the dial indicator;

[0054] Step 2: Based on the completely accurate equal division of the 6 fairways, the three groups of readings from the bell mouth downward and upward should be symmetrical, with the error within 0.01, and the equal division is judged to be correct;

[0055] Step 3: On the basis of the reading error of 0.01,

[0056] Lock a pair of lanes downward with the big end of the figure-eight, read the value. A positive number indicates the value corresponding to the system plane > 15.5, and a negative number indicates the value corresponding to the system plane < 15.5;

[0057] Lock a pair of lanes downward with the small end of the figure-eight, read the value. A positive number indicates the value corresponding to the system plane < 15.5, and a negative number indicates the value corresponding to the system plane > 15.5;

[0058] Step 4: The two sets of values can corroborate each other. If the error is within 0.02 mm, the measurement is determined to be valid (equivalent to the repeatability error of the ball path position contact being ±0.005);

[0059] Step 5: Considering the error of the measurement system, it is required that the grinder be adjusted so that the first inspection error is within ±0.05 mm before production can start.

[0060] The system plane gauge for ball cage parts locks the measuring ball by the self-weight of the product part to ensure the reliability of the gauge clamping. It has the characteristics of large clamping force and stable clamping, and can meet the stability requirements for rapid measurement of parts. The system plane gauge for ball cage parts can convert the center distance of the ball in the horizontal direction of the ball path into the height fluctuation value of the system plane by using the tangent trigonometric function conversion of the ball path and the trigonometric function lever to amplify the conversion ratio.

Claims

1. A planar gauge for a constant velocity joint part system, characterized in that, It includes a first base (001), triangular ribs (002), a bottom plate (003), a second base (004), a bearing positioning seat (005), a main shaft (006), a measuring arm (008), a measuring ball (009), a dial gauge seat (012), a calibration gauge (013), a micrometer (014) and a bearing (015); The bottom of the triangular rib (002) is fixed on the first base (001), and one side of the triangular rib (002) is provided with an inclined surface; The bottom plate (003) is arranged on the inclined surface. The bottom plate (003) is provided with a through hole, and a bearing positioning seat (005) is arranged in the through hole. One end of the main shaft (006) is connected to the bearing positioning seat (005) through a bearing (015); The second base (004) is arranged on one side of the bottom plate (003) away from the triangular rib (002), and the second base (004) is provided with an annular hole; One end of the main shaft (006) close to the second base (004) is provided with a first support rod, and one end of the bearing positioning seat (005) close to the second base (004) is provided with a second support rod. Both the first support rod and the second support rod pass through the annular hole; Measuring balls (009) are arranged on both the first support rod and the second support rod; A dial gauge seat (012) is arranged on one side of the bottom plate (003) close to the triangular rib (002), and a micrometer (014) is arranged on the dial gauge seat (012); The other end of the main shaft (006) is provided with the measuring arm (008); The micrometer (014) is arranged corresponding to the measuring arm (008).

2. The planar inspection fixture for the constant velocity joint part system according to claim 1, wherein, The inclined surface forms a 60° angle with the first base (001).

3. The planar gauge for the constant velocity joint part system according to claim 1, characterized in that, The micrometer (014) is a digital display micrometer.

4. The planar gauge for the constant velocity joint part system according to claim 1, characterized in that, The measuring arm (008) is connected to the main shaft through a first screw (016).

5. The plane gauge for the constant velocity joint part system according to claim 1, characterized in that, The measuring ball (009) is connected to the support rod through a compression screw (011).

6. The planar gauge for the constant velocity joint part system according to claim 1, characterized in that, Steel ball height adjustment washers (010) are arranged on both the first support rod and the second support rod.

7. The planar gauge for the constant velocity joint part system according to claim 1, characterized in that, The bearing positioning seat (005) is connected to the bottom plate (003) through a second screw (017).

8. The planar inspection fixture for the constant velocity joint part system according to claim 1, wherein A fixed bracket is arranged on one side of the dial gauge seat (012) away from the bottom plate (003), and the micrometer (014) is arranged on the fixed bracket.

9. The plane inspection fixture for the constant velocity joint part system according to claim 1, wherein Two triangular ribs (002) are arranged on the first base (001), and the bottom plate (003) is fixed through the two triangular ribs (002).

10. The planar gauge for the constant velocity joint part system according to claim 1, characterized in that, A positioning hole is arranged in the middle of the bearing positioning seat (005). A sector-shaped notch is arranged at one end of the bearing positioning seat (005) close to the second base (004). One end of the main shaft close to the second base (004) is provided with a sector-shaped protrusion. The sector-shaped protrusion is arranged in the sector-shaped notch. The angle of the sector-shaped protrusion is smaller than that of the sector-shaped notch. The first support rod is arranged on the sector-shaped protrusion.

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