Gear end face processing detection tool

Abstract

The utility model discloses a tooth end face processing detection frock, including the connecting block of being placed on the shaft tooth and the dial gauge of setting in the connecting block one side, is equipped with with the adjusting assembly of abutting with the shaft tooth in the other side of this connecting block, is equipped with the positioning pin of being worn in the connecting block between adjusting assembly and the dial gauge. The utility model sets up the positioning pin and realizes the placement limit of connecting block on the shaft tooth, the adjusting assembly of setting realizes the straight placement of connecting block on the shaft tooth, sets up the height value of the dial gauge measurement shaft tooth processing position, thereby realizes the purpose of on -the -spot quick measurement, and the operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a tooling for machining and inspecting tooth end faces. Background Technology

[0002] There are many machining positions on the tooth end face of the stepped shaft, that is, the stepped surface position ground on the outer wall of the shaft. The measurement error of calipers on the machining site is large, and the operation of calipers is also very strenuous. Usually, it is sent to the inspection center for auxiliary inspection. However, the inspection center has high requirements for the inspection personnel and inspection site, and the inspection time is long and the inspection process is cumbersome, which is not conducive to the inspection in the mass production process on site. Utility Model Content

[0003] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a tooling for tooth end face machining and inspection that is convenient for rapid on-site inspection and flexible in use.

[0004] To solve the above-mentioned technical problems, the present invention provides a tooling for inspecting the machining of tooth ends, including a connecting block placed on the shaft tooth and a dial indicator disposed on one side of the connecting block. An adjustment component that abuts against the shaft tooth is provided on the other side of the connecting block. A positioning pin is provided between the adjustment component and the dial indicator and passes through the connecting block. In use, the positioning pin limits the placement of the connecting block on the shaft tooth, while the adjustment component ensures that the connecting block is placed flat and aligned with the shaft tooth. Finally, the dial indicator is used to measure the height value of the machining position of the shaft tooth.

[0005] Using the above structure, first move the connecting block, placing one side of the connecting block on the large-diameter end of the shaft tooth, and move the locating pin to the corresponding hole on the shaft tooth for insertion, or make the outer wall of the locating pin abut against the step surface at the corresponding position of the shaft tooth. During this process, the measuring head of the dial indicator remains in contact with the step surface to be measured. Then, use the adjustment component to adjust the straightness of the connecting block in the horizontal direction until there is no longer any axial gap swing between the connecting block and the large-diameter end of the shaft tooth, which means the adjustment is in place. Then observe the value pointed to by the dial indicator. Under the premise of taking the dial indicator reading as zero as the reference, the machining dimensional error of the step surface height can be detected. While ensuring the pass rate detection, it can effectively assist in adjusting the machining dimensions and facilitate rapid on-site detection.

[0006] To simplify the structure and facilitate the placement of the dial indicator, preferably, the connecting block has an arc-shaped cross-section. On one side of the higher end of the arc-shaped structure, there is a first straight section for placing the dial indicator horizontally. On the connecting block, two clamping blocks are symmetrically arranged on the left and right sides corresponding to the first straight section. One side of each clamping block is provided with an arc groove. The two arc grooves together form a clamping hole through which the sleeve on the dial indicator passes. The other side of each clamping block is provided with a threaded hole for the locking bolt to be screwed in.

[0007] To reduce the weight of holding the device and to observe the flatness of the connecting block, it is preferable to provide a weight-reducing groove on the connecting block at the position corresponding to the first flat section.

[0008] To avoid interference, preferably, a boss is provided on the other side of the high end of the arc-shaped structure, and a guide groove is provided on the boss at the position of the stop cap of the dial indicator; when the stop cap is pulled to move the test rod, the stop cap extends into the guide groove.

[0009] To simplify the structure and facilitate use, the adjusting assembly preferably includes an adjusting bolt screwed through the bottom of one side of the guide groove, with a washer fitted on the adjusting bolt. The washer is positioned on the upper end face of the boss, and the nut of the adjusting bolt abuts against and limits the movement of the washer.

[0010] For ease of processing and installation, preferably, a second straight section is provided on the connecting block at a position corresponding to the other side of the guide groove, and the positioning pin is vertically inserted through the second straight section.

[0011] To reduce the contact area and avoid negative pressure adsorption at the contact surface, preferably, two convex protrusions are symmetrically provided on the inner sidewalls of the left and right sides of the lower end of the connecting block, which are arranged along the axial direction of the connecting block. The protrusions are arc-shaped.

[0012] To facilitate the detection of the length of the shaft teeth, preferably, a through hole is provided on one side of the connecting block corresponding to the adjusting bolt, and a stop hole is provided on one side of the through hole. A plug is inserted through the through hole and the stop hole respectively to detect the machining error of the end face length of the shaft teeth.

[0013] Beneficial effects: This utility model uses a positioning pin to limit the placement of the connecting block on the shaft tooth; the adjustment component ensures the connecting block is placed flat on the shaft tooth; and a dial indicator measures the height of the shaft tooth machining position, thus achieving the purpose of rapid on-site measurement and convenient operation. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 for Figure 1 Top view.

[0017] Figure 3 This is a schematic diagram of the clamping block.

[0018] Figure 4 for Figure 1 Left view of the connecting block.

[0019] Figure 5 This is a diagram showing the usage state of this utility model and a holeless shaft gear workpiece.

[0020] The meanings of the labels in the attached diagram are as follows:

[0021] Connecting block-1; Clamping block-10; First straight section-11; Second straight section-12; Arc groove-13; Locking bolt-14; Weight-reducing groove-15;

[0022] Dial indicator-2; Locating pin-3; Boss-4; Guide groove-40; Adjusting bolt-41; Washer-42; Raised-5; Through hole-51; Stop hole-52. Detailed Implementation

[0023] Depend on Figures 1 to 5 As shown, this utility model includes a connecting block 1 placed on the shaft tooth and a dial indicator 2 disposed on one side of the connecting block 1. An adjustment component that abuts against the shaft tooth is provided on the other side of the connecting block 1. A positioning pin 3 is provided between the adjustment component and the dial indicator 2 and passes through the connecting block 1. In use, the positioning pin 3 limits the placement of the connecting block 1 on the shaft tooth. At the same time, the adjustment component ensures that the connecting block 1 is attached and placed flat on the shaft tooth. Finally, the dial indicator 2 is used to measure the height value of the shaft tooth machining position.

[0024] Specifically, the cross-section of the connecting block 1 is an arc-shaped structure. On one side of the high end of the arc-shaped structure, there is a first straight section 11 for placing the dial indicator 2 horizontally. On the connecting block 1, two clamping blocks 10 are symmetrically arranged on the left and right sides corresponding to the position of the first straight section 11. One side of each clamping block 10 is provided with an arc groove 13. The two arc grooves 13 together form a clamping hole through which the sleeve on the dial indicator 2 passes. The other side of each clamping block 10 is provided with a threaded hole for the locking bolt 14 to be screwed in.

[0025] Among them, a weight-removing groove 15 is provided on the connecting block 1 at the position corresponding to the first straight section 11.

[0026] In addition, a boss 4 is provided on the other side of the high end of the arc-shaped structure, and a guide groove 40 is provided on the boss 4 at the position of the stop cap of the dial gauge 2; when the stop cap is pulled to move the test rod, the stop cap extends into the guide groove 40.

[0027] The adjustment assembly includes an adjustment bolt 41 screwed through the bottom of one side of the guide groove 40, and a washer 42 sleeved on the adjustment bolt 41. The washer 42 is placed on the upper end face of the boss 4, and the nut of the adjustment bolt 41 abuts against the washer 42 for limiting.

[0028] A second straight section 12 is provided on the connecting block 1 at a position corresponding to the other side of the guide groove 40, and the positioning pin 3 is vertically inserted through the second straight section 12.

[0029] Two raised sections 5 are symmetrically arranged on the inner sidewalls of the left and right sides of the lower end of the connecting block 1 along the axial direction of the connecting block 1. The raised section 5 has a circular arc structure.

[0030] In addition, a through hole 51 is provided on one side of the connecting block 1 corresponding to the adjusting bolt 41, and a stop hole 52 is provided on one side of the through hole 51. A plug 50 is used to pass through the through hole 51 and the stop hole 52 respectively to detect the machining error of the end face length of the shaft tooth.

[0031] The working principle of this utility model is as follows:

[0032] like Figures 1 to 5 As shown, firstly, before use, a shaft tooth sample is required ( Figure 1(As shown by the dotted line) For testing and debugging, specifically, first, pull the stop cap, move the measuring rod towards the dial, and place the dial indicator 2 flat on the first straight section 11. At the same time, place the stop cap into the guide groove 40. Next, release the stop cap, and the measuring rod moves synchronously with the measuring head and extends into the clamping hole formed by the two arc grooves 13. Then, push the dial indicator 2 flat so that the sleeve on the dial indicator 2 extends into the clamping hole until the outer wall of the dial indicator body abuts against the inner wall of the connecting block 1 corresponding to the position of the first straight section 11. At this time, tighten the locking bolt 14 so that the arc grooves 13 on the two clamping blocks 10 clamp the sleeve of the dial indicator, thus achieving the purpose of fixing the dial indicator 2. Vertically insert the positioning pin 3 into the second straight section 12, and then screw on the adjusting bolt 41. Twist the adjusting bolt 41 and make the threaded end face abut against the shaft tooth sample. After abutting, adjust the straight placement of the connecting block 1 on the shaft tooth sample according to the gap width between the inner side wall of the connecting block 1 and the large diameter end of the shaft tooth sample. When there is no longer any axial gap swing between the high end of the arc of the connecting block 1 and the large diameter end of the shaft tooth, the adjustment is in place. Then, according to the distance between the nut of the adjusting bolt 41 and the upper end face of the boss 4, select a washer 42 of corresponding thickness and put it on the adjusting bolt 41. The washer 42 is placed on the upper end face of the boss 4, and the nut of the adjusting bolt 41 and the washer 42 abut against and limit the position. Then rotate the bezel of the dial indicator 2 and adjust the zero mark of the dial so that the pointer is aligned with the zero position. In this way, the zero adjustment operation before the use of this utility model is completed.

[0033] It should be noted that the arc of connecting block 1 and the arc of the shaft gear workpiece are not concentrically set, such as... Figure 4 As shown, when the connecting block 1 is placed at the large diameter end (dotted circle) of the shaft tooth workpiece, the raised position 5 is in contact with the outer wall of the shaft tooth workpiece. At the same time, the high end of the arc of the connecting block 1 is in contact with the outer wall of the large diameter of the shaft tooth workpiece. The three-point contact, plus the support of the adjusting bolt 41, can maintain the placement stability of the connecting block 1, and also reduce the contact area to avoid negative pressure adsorption on the contact surface.

[0034] In use, move the connecting block 1 and place one side of the connecting block 1 on the large diameter end of the shaft tooth sample. Move the positioning pin 3 to the corresponding hole on the shaft tooth sample and insert it. The threaded end face of the adjusting bolt 41 also fits and abuts against the corresponding position of the shaft tooth sample. During this process, the measuring head of the dial indicator 2 remains in contact with the step surface to be measured. Then observe the value pointed to by the dial indicator 2 in a stable state to obtain the machining error value of the tooth end face of the shaft tooth sample. On the basis of ensuring the pass rate detection, it can effectively assist in adjusting the machining dimensions and facilitate rapid on-site detection.

[0035] In addition, such as Figure 5As shown, when there is no hole corresponding to the positioning pin 3 on the shaft gear workpiece, but the hole wall position corresponding to the hole position on the shaft gear workpiece is provided with a stepped surface processing position, in this case, the outer side wall of the positioning pin 3 only needs to abut against the stepped surface of the corresponding position on the shaft gear workpiece to achieve the limit determination. It is flexible and convenient to use, and can achieve the purpose of multiple uses within a certain product specification range.

[0036] In addition to checking the machining dimensions of the tooth end face (the stepped surface on the shaft tooth mentioned above), it is also necessary to check the machining error of the total axial length of the shaft tooth workpiece to avoid the relative error affecting the machining position of the tooth end face. In order to improve production efficiency, this is a sampling inspection operation in the tooth machining process so as to promptly detect machining deviations and adjust the corresponding machining parameters.

[0037] Specifically, such as Figure 2 and Figure 4 As shown, first, insert the plug 50 through the stop hole 52. If the inner side of the plug 50 does not contact the shaft gear workpiece, it indicates that the machining dimension of the shaft gear workpiece is too short and exceeds the error range. If the inner side of the plug 50 contacts the shaft gear workpiece, then insert the plug 50 through the through hole 51. If the protruding end of the plug 50 does not contact the shaft gear workpiece, it indicates that the machining dimension of the shaft gear workpiece is within the machining error range and is qualified. If the inner side of the plug 50 protruding end of the through hole 51 contacts the shaft gear workpiece, it indicates that the machining dimension of the shaft gear workpiece is too long and exceeds the error range.

Claims

1. A tooling for inspecting tooth end face machining, characterized in that: The device includes a connecting block (1) placed on the shaft tooth and a dial indicator (2) set on one side of the connecting block (1). An adjustment component that abuts against the shaft tooth is provided on the other side of the connecting block (1). A positioning pin (3) passing through the connecting block (1) is provided between the adjustment component and the dial indicator (2). In use, the positioning pin (3) limits the placement of the connecting block (1) on the shaft tooth. At the same time, the adjustment component ensures that the connecting block (1) is attached and placed flat on the shaft tooth. Finally, the dial indicator (2) measures the height value of the shaft tooth machining position.

2. The tooling for inspecting tooth end face machining as described in claim 1, characterized in that: The connecting block (1) has a circular arc structure in cross section. A first straight section (11) for placing the dial indicator (2) flat is provided on one side of the high end of the circular arc structure. Two clamping blocks (10) are symmetrically provided on the left and right sides of the connecting block (1) corresponding to the position of the first straight section (11). One side of each clamping block (10) is provided with a circular arc groove (13). The two circular arc grooves (13) together form a clamping hole through which the sleeve on the dial indicator (2) passes. The other side of each clamping block (10) is provided with a threaded hole for the locking bolt (14) to be screwed in.

3. The tooling for inspecting tooth end face machining as described in claim 2, characterized in that: A weight-removing groove (15) is provided on the connecting block (1) at the position corresponding to the first straight section (11).

4. The tooling for inspecting tooth end face machining as described in claim 2, characterized in that: A boss (4) is provided on the other side of the high end of the arc-shaped structure. A guide groove (40) is provided on the boss (4) at the position of the stop cap of the dial indicator (2). When the stop cap is pulled to move the test rod, the stop cap extends into the guide groove (40).

5. The tooling for inspecting tooth end face machining as described in claim 4, characterized in that: The adjustment assembly includes an adjustment bolt (41) screwed through the bottom of one side of the guide groove (40), a washer (42) sleeved on the adjustment bolt (41), the washer (42) being placed on the upper end face of the boss (4), and the nut of the adjustment bolt (41) abutting against the washer (42) for limiting.

6. The tooling for inspecting tooth end face machining as described in claim 5, characterized in that: A second straight section (12) is provided on the connecting block (1) at a position corresponding to the other side of the guide groove (40), and the positioning pin (3) is vertically inserted on the second straight section (12).

7. The tooling for inspecting tooth end face machining as described in claim 5, characterized in that: Two raised sections (5) are symmetrically arranged on the inner sidewalls of the left and right sides at the lower end of the connecting block (1) along the axial direction of the connecting block (1). The raised section (5) has an arc structure.

8. The tooling for inspecting tooth end face machining as described in claim 6, characterized in that: A through hole (51) is provided on one side of the connecting block (1) corresponding to the adjusting bolt (41), and a stop hole (52) is provided on one side of the through hole (51). A plug (50) is inserted through the through hole (51) and the stop hole (52) respectively to detect the machining error of the end face length of the shaft tooth.

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