Needle roller workbench for bearing instrument

Abstract

The utility model discloses a needle roller workbench for a bearing instrument, which relates to the field of needle roller detection and comprises a convex block, a backer and a concave block, a convex part is arranged in the middle of the convex block, the concave block is arranged on the convex part, the backer is L-shaped, one side of the backer abuts against the convex block, and the backer is detachably connected with the convex block. The other side of the backer is pressed on the concave block; the convex block is detachably installed on the lower table top of the bearing instrument, the roller pin is placed on the concave block and abuts against the surface of the backer, a dial gauge is supported on the bearing instrument, and a measuring head of the dial gauge abuts against the surface of the roller pin to achieve measurement. By improving the base of the bearing instrument and matching with the dial gauge, the diameter of the roller pin can be measured, the measurement precision required by a product is met, the use is simple, the adjustment is convenient, the measurement precision is high, the consistency is good, and the product quality can be ensured.

Description

Technical Field

[0001] This utility model relates to the field of needle roller testing, specifically to a needle roller worktable for a bearing instrument. Background Technology

[0002] The existing lever micrometer has a measurement accuracy of 0.001mm, while for products with higher measurement accuracy using needle rollers, the required tolerance range is 0.002mm. The accuracy of the lever micrometer cannot meet the tolerance requirements, which in turn affects product quality. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a needle roller worktable for bearing instruments. By improving the base of the bearing instrument and matching it with a dial indicator, the diameter of the needle roller can be measured to meet the measurement accuracy required by the product. It is simple to use, easy to adjust, has high measurement accuracy and good consistency, and can ensure product quality.

[0004] The purpose of this utility model is achieved through the following technical solution: This bearing instrument needle roller worktable includes a convex block, a backing block, and a concave block. The convex block has a raised part in the middle, and the concave block is placed on the raised part. The backing block is L-shaped, with one side close to the convex block, and the backing block and the convex block are detachably connected, so that the other side of the backing block is pressed against the concave block. The convex block is detachably installed on the lower table of the bearing instrument. The needle roller is placed on the concave block and abuts against the surface of the backing block. A dial indicator is supported on the bearing instrument, and the probe of the dial indicator abuts against the surface of the needle roller to achieve measurement.

[0005] As a further technical solution, a T-shaped groove is opened on the lower platform of the bearing instrument, and fixing holes are opened on the convex blocks on both sides of the protrusion along the height direction. The convex blocks are placed on the platform and are fixed to the bearing instrument by engaging with the T-shaped groove through fixing screws and nuts.

[0006] As a further technical solution, a connecting hole is opened along the width direction on the side wall of the protrusion and / or the convex block, and a waist-shaped hole is opened at the corresponding position on the backing. The backing and the convex block are fixed by connecting screws cooperating with the connecting hole.

[0007] The beneficial effects of this utility model are as follows:

[0008] 1. The convex block remains fixed to the table of the bearing instrument during measurement, requiring no adjustment, which is more convenient and prevents shaking during measurement, thus affecting measurement accuracy;

[0009] 2. Measurements using a dial indicator can meet the accuracy requirements of a measuring instrument with a tolerance of 2μm;

[0010] 3. A waist-shaped hole is made on the back of the block to facilitate adjustment of the fixed position on the convex block to match the height of the concave block. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 .

[0012] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0013] Figure 3 This is a schematic diagram of the structure of this utility model after the screws are installed.

[0014] Figure 4 This is a schematic diagram of the bearing device in this utility model.

[0015] Figure 5 This is a schematic diagram of the structure of the present invention after assembly with the bearing instrument.

[0016] Explanation of reference numerals in the attached drawings: 1. Convex block, 11. Protrusion, 111. Connecting hole, 12. Fixing hole, 2. Backing, 21. Waist-shaped hole, 3. Concave block, 4. Bearing, 41. T-slot, 42. Table, 5. Connecting screw, 6. Fixing screw, 7. Nut, 8. Dial indicator, 9. Needle roller. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings:

[0018] Example: As attached Figures 1-5 As shown, this bearing instrument needle roller worktable includes a convex block 1, a protrusion 11, a connecting hole 111, a fixing hole 12, a backrest 2, a waist-shaped hole 21, a concave block 3, a bearing instrument 4, a T-slot 41, a table surface 42, a connecting screw 5, a fixing screw 6, a nut 7, a dial indicator 8, and a needle roller 9.

[0019] Reference Appendix Figure 1 , 2 3. The middle position of the convex block 1 protrudes upward to form a protrusion 11, and the concave block 3 is placed on the protrusion 11 (or it can be fixed by welding). The backrest 2 has an "L" shape structure. One side of the backrest 2 (the longer part of the "L" shape structure) is close to the convex block 1. Preferably, a common connecting hole 111 (using threaded holes) is opened on the side wall of the protrusion 11 and the convex block 1 along the width direction. A waist-shaped hole 21 is opened on the backrest 2 at the corresponding position of the connecting hole 111. By connecting the connecting screw 5 with the connecting hole 111, the backrest 2 and the convex block 1 can be fixed, realizing the detachable connection between the backrest 2 and the convex block 1. At the same time, the other side of the backrest 2 (i.e., the shorter part of the "L" shape structure) is pressed against the concave block 3.

[0020] like Figure 4 , 5As shown, a T-shaped groove 41 is formed on the lower platform 42 of the bearing instrument 4 (a D4701 bearing instrument is used in this embodiment), as... Figure 2 , 3 As shown, fixing holes 12 are opened along the height direction on the convex blocks 1 on both sides of the protrusion 11. The convex blocks 1 are placed on the table 42 and are engaged with the T-shaped groove 41 by fixing screws 6 and nuts 7, so as to realize the detachable installation of the convex blocks 1 and the bearing instrument 4 (table 42).

[0021] Furthermore, the needle roller 9 is placed on the concave block 3 and pressed against the surface of the backing 2. A dial indicator 8 is supported on the bearing instrument 4. The probe of the dial indicator 8 is pressed against the surface of the needle roller 9 to achieve measurement.

[0022] Preferably, the convex block 1 and the backing are both made of 45# steel, the nut 7 is a hexagonal nut, the connecting screw 5 is an M4*10 socket head cap screw, and the fixing screw 6 is an M8*20 socket head cap screw.

[0023] The working process of this utility model:

[0024] During measurement, the dial indicator 8 is installed on the D4701 bearing instrument 4. Then, the nut 7 is placed into the T-slot 41, and the convex block 1 is fixed to the platform 42 of the bearing instrument 4 using the fixing screw 6 and the fixing hole 12. Next, the support 2 is fixed to the oblong hole 21 and the corresponding connecting hole 111 using the connecting screw 5, and the support 2 is installed on the side wall of the convex block 1, so that the top of the support 2 presses against the concave block 3. Then, the needle roller 9 is placed on the concave block 3 and rests against the surface of the support 2. The probe of the dial indicator 8 also rests against the surface of the needle roller 9. Figure 5 As shown, observe the display value of dial indicator 8 to complete the measurement.

[0025] It is understood that, for those skilled in the art, any equivalent substitutions or modifications to the technical solutions and inventive concepts of this utility model should fall within the protection scope of the appended claims.

Claims

1. A needle roller worktable for a bearing instrument, characterized in that: The instrument includes a convex block (1), a backrest (2), and a concave block (3). The convex block (1) has a protrusion (11) in the middle, and the concave block (3) is set on the protrusion (11). The backrest (2) is L-shaped, with one side close to the convex block (1). The backrest (2) and the convex block (1) are detachably connected, so that the other side of the backrest (2) is pressed against the concave block (3). The convex block (1) is detachably installed on the lower platform (42) of the bearing instrument (4). The needle roller (9) is placed on the concave block (3) and abuts against the surface of the backrest (2). A dial indicator (8) is supported on the bearing instrument (4). The probe of the dial indicator (8) abuts against the surface of the needle roller (9) to achieve measurement.

2. The needle roller worktable for bearing instruments according to claim 1, characterized in that: A T-shaped groove (41) is provided on the lower platform (42) of the bearing instrument (4). Fixing holes (12) are provided on the convex blocks (1) on both sides of the protrusion (11) along the height direction. The convex blocks (1) are placed on the platform (42) and are engaged with the T-shaped groove (41) by fixing screws (6) and nuts (7) to fix the convex blocks (1) and the bearing instrument (4).

3. The needle roller worktable for bearing instruments according to claim 1, characterized in that: A connecting hole (111) is provided on the side wall of the protrusion (11) and / or the convex block (1) along the width direction. A waist-shaped hole (21) is provided on the backrest (2) at the position corresponding to the connecting hole (111). The backrest (2) and the convex block (1) are fixed by the connecting screw (5) cooperating with the connecting hole (111).

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