Main shaft straightness detection tool

Abstract

The utility model discloses a spindle straightness detection tool, which relates to the field of mechanical part detection tools and comprises a placement seat, an inclined positioning block fixedly arranged on the placement seat, a transverse detection block movably arranged on the placement seat and a detection pin detachably inserted into the placement seat. A short shaft groove, a containing groove and a long shaft groove are sequentially formed in the upper surface of the placing base in the length direction of the placing base, and an inspection hole matched with the connecting hole is formed in the groove bottom wall of the long shaft groove; the inclined positioning block is used for pre-positioning a to-be-detected main shaft, the transverse detection block is used for being transversely inserted into the short shaft groove after the to-be-detected main shaft is pre-positioned and detecting a straight groove of the to-be-detected main shaft, and the detection pin is used for penetrating through the connecting hole after the to-be-detected main shaft is pre-positioned and detecting the connecting hole of the to-be-detected main shaft. According to the detection tool, the connection hole, the straight groove and the semicircular groove of the to-be-detected main shaft can be directly aligned with and inserted into all the grooves and holes in the placement seat for detection, and detection of the straightness of the to-be-detected main shaft can be conveniently and efficiently achieved.

Description

Technical Field

[0001] The present application relates to the field of mechanical parts detection tools, and in particular to a spindle straightness detection tool. Background Art

[0002] In the machining process of automotive parts, many different types of spindle units are involved.

[0003] like Figure 1 The main shaft 1 to be tested of an automobile component shown in the figure comprises a short axis portion 11, a ball portion 12 and a long axis portion 13 which are arranged in sequence from left to right and connected in an integral manner. The short axis portion 11 and the long axis portion 13 are both cylindrical, and the short axis portion 11 and the long axis portion 13 have the same diameter. The ball portion 12 is coaxially sleeved at the junction of the short axis portion 11 and the long axis portion 13; a straight groove 111 is provided at one end of the short axis portion 11 away from the ball portion 12, which is connected to the end surface of the short axis portion 11; and a straight groove 111 is provided at one end of the long axis portion 13 away from the ball portion 12, which is connected to the end surface of the short axis portion 11 along the radial direction of the long axis portion 13. A circular connecting hole 131 is provided through the ball portion 12. The length extension direction of the straight groove 111 is parallel to the axial direction of the short axis portion 11. The groove depth direction of the straight groove 111 is perpendicular to the opening direction of the connecting hole 131. A semicircular groove 121 is provided on the surface of the ball portion 12. The groove depth direction of the semicircular groove 121 is perpendicular to the axial direction of the short axis portion 11. The groove depth direction of the semicircular groove 121 is at a 45° angle to the groove depth direction of the straight groove 111. The groove depth direction of the semicircular groove 121 is also at a 45° angle to the opening direction of the connecting hole 131.

[0004] During the above-mentioned spindle machining process, the relative positions of the straight groove 111, the semicircular groove 121 and the connecting hole 131 of the spindle 1 to be tested (that is, the straightness of the spindle) meet the standards, which is one of the key conditions to ensure the spindle rotation accuracy, safety and reliability. The processed spindle needs to be inspected by a straightness detection device; and the existing spindle detection method is mostly for workers to perform section measurement with a vernier caliper, which has low detection efficiency and exists errors, and it is difficult to meet the needs of spindle production and machining. Utility Model Content

[0005] In order to overcome the defects of low detection efficiency and error in the existing spindle detection methods in the background technology, the present application provides a spindle straightness detection tool.

[0006] The present application provides a spindle straightness detection tooling that adopts the following technical solution:

[0007] A spindle straightness detection tool, comprising a placement seat in the shape of a rectangular parallelepiped, wherein a short axis groove adapted to the specification of the short axis portion of the spindle, a receiving groove for placing a ball portion, and a long axis groove adapted to the specification of the long axis portion are sequentially opened on the upper surface of the placement seat along its length direction, wherein the short axis groove, the receiving groove, and the long axis groove are all opened upward and connected, the bottom surface of the short axis groove is coplanar with the bottom surface of the long axis groove, the bottom surface of the receiving groove is located below the bottom surface of the short axis groove, and the height between the bottom surface of the receiving groove and the bottom surface of the short axis groove is The degree difference is equal to the difference between the radius of the spherical part of the main shaft and the radius of the short axis part; an oblique positioning block adapted to the specification of the semicircular groove is protruding upward and inclined on the bottom surface of the accommodating groove, and the placement seat is provided with a plug-in groove perpendicular to and connected to the short axis groove on one side along its length direction, and a horizontal inspection block adapted to the straight groove is movably penetrated in the plug-in groove, and a circular inspection hole adapted to the connecting hole of the long axis part is provided on the bottom wall of the long axis groove, and an inspection pin is detachably inserted in the inspection hole.

[0008] By adopting the above technical scheme, in the process of processing the spindle in the background technology, the operator can place the spindle to be tested on the placement seat from top to bottom, and make the ball part of the spindle to be tested close to the bottom surface of the receiving groove, push the spindle to be tested along the length extension direction of the placement groove, and make the semicircular groove of the ball part and the oblique positioning block cooperate and plug, so that the ball part of the spindle to be tested and the side wall of the receiving groove close to the short axis groove are pressed tightly, so as to realize the pre-positioning of the spindle to be tested; then, the operator can insert the transverse inspection block into the plug-in groove along the width direction of the placement seat, so that the transverse inspection block can be inserted into the plug-in groove, so that the spindle to be tested can be pre-positioned. The end of the inspection block is placed in the short shaft groove, and the relative position between the straight groove and the semicircular groove of the spindle to be tested can be effectively detected by whether the transverse inspection block can be inserted into the straight groove of the spindle to be tested; when the transverse inspection block can be placed in the straight groove of the spindle to be tested, the operator can insert the inspection pin into the connecting hole of the spindle to be tested, and when the inspection pin can be inserted into the inspection hole on the placement seat through the connecting hole of the spindle to be tested, the straightness of the spindle to be tested meets the standard, and when the inspection pin cannot be inserted into the inspection hole on the placement seat through the connecting hole of the spindle to be tested, the spindle to be tested is a defective product. The overall detection steps are relatively simple and convenient, the detection efficiency is high, and the detection error is small, which effectively overcomes the defects of low detection efficiency and errors in the existing spindle detection methods in the background technology.

[0009] Preferably, a limiting block is protruding from the bottom surface of one end of the short axis groove away from the containing groove, and the distance between the limiting block and the containing groove is equal to the length of the short axis portion.

[0010] By adopting the above technical solution, it is convenient for the operator to observe and detect the length of the short axis portion of the spindle to be tested while detecting the straightness of the spindle to be tested.

[0011] Preferably, a limiting groove connected to the long axis groove is provided on the placement seat at one end of the long axis groove away from the accommodating groove. When the main shaft is placed on the placement seat and the end face of the short axis portion of the main shaft abuts against the limiting block, the end face of the long axis portion of the main shaft is coplanar with the end face of the groove wall on one side of the limiting groove close to the accommodating groove.

[0012] By adopting the above technical solution, it is convenient for the operator to observe and detect the overall length of the spindle to be measured while detecting the straightness of the spindle to be measured.

[0013] Preferably, the length of the accommodation groove is between two and three times the length of the diameter of the ball portion.

[0014] By adopting the above technical solution, it is convenient for the operator to place the ball part of the spindle to be measured into the accommodating groove, and it is convenient for the operator to plug and match the semicircular groove of the spindle to be measured with the oblique positioning block, so as to realize the pre-positioning of the spindle to be measured.

[0015] Preferably, the accommodating groove is communicated with two side surfaces of the placement seat along the length direction.

[0016] By adopting the above technical solution, it is convenient for operators to operate the plug-in connection between the ball part of the spindle to be measured and the oblique positioning block.

[0017] Preferably, the junction between any two adjacent side surfaces of the placement seat is in an arc transition.

[0018] The adoption of the above technical solution is helpful to reduce the collision between the spindle to be tested and the placement seat, thereby ensuring the surface integrity of the spindle to be tested.

[0019] Preferably, an anti-dropout block is protruding from the middle of the transverse inspection block, an anti-dropout groove connected to the plug-in groove is provided on the placement seat at the middle of the plug-in groove, and the anti-dropout block is slidably connected in the anti-dropout groove.

[0020] By adopting the above technical solution, when the detection tooling is in an idle state, the transverse inspection block is not easy to slip off the placement seat, which is convenient for the operator to effectively store the detection tooling.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. By placing the spindle to be tested on the placement seat and making the semicircular groove of the ball part of the spindle to be tested cooperate with the oblique positioning block, the operator can insert the transverse inspection block into the short shaft groove, and realize the effective detection of the relative position between the straight groove and the semicircular groove of the spindle to be tested by whether the transverse inspection block can be inserted into the straight groove of the spindle to be tested. After the transverse inspection block is inserted into the straight groove of the spindle to be tested, the inspection pin can penetrate the connecting hole of the spindle to be tested and insert into the inspection hole on the placement seat, so as to realize the effective detection of the relative position between the connecting hole to be tested and the semicircular groove, thereby realizing the detection of the straightness of the spindle to be tested more conveniently and efficiently, with high overall detection efficiency, small detection error and convenient operation;

[0023] 2. With the help of the limit block and the limit groove, the operator can observe and detect the short axis length, long axis length and overall length of the spindle to be tested more conveniently while detecting the straightness of the spindle to be tested;

[0024] 3. By setting the anti-drop block, the horizontal inspection block is not easy to slip off the placement seat, which is convenient for the operator to effectively store the inspection tooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the axonometric measurement of the overall structure of the spindle to be tested in the background technology and the first embodiment of the present application;

[0026] Figure 2 This is a schematic diagram of the overall structure of the detection tooling mainly embodied in the first embodiment of the present application;

[0027] Figure 3 This is a schematic diagram of the plug-in slot and inspection hole of the detection tooling, which is mainly reflected in the first embodiment of the present application;

[0028] Figure 4 This is a schematic diagram of the structure of the first embodiment of the present application, which mainly reflects that a spindle to be tested with qualified straightness is placed on a placement seat;

[0029] Figure 5 This is a schematic diagram of the anti-dropping block structure mainly embodied in the second embodiment of the present application;

[0030] Figure numerals: 1. spindle to be measured; 11. short axis portion; 111. straight groove; 12. ball portion; 121. semicircular groove; 13. long axis portion; 131. connecting hole; 2. placement seat; 21. short axis groove; 22. accommodating groove; 23. long axis groove; 24. plug-in groove; 25. inspection hole; 26. limit block; 27. limit groove; 3. oblique positioning block; 4. lateral inspection block; 41. anti-drop block; 5. inspection pin. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-5 This application is described in further detail.

[0032] The embodiment of the present application discloses a spindle straightness detection tool.

[0033] Example 1

[0034] Reference Figure 1 The main shaft 1 to be tested includes a short axis portion 11, a ball portion 12 and a long axis portion 13 which are arranged in sequence from left to right and connected in an integral manner. The short axis portion 11 and the long axis portion 13 are both cylindrical, and the short axis portion 11 and the long axis portion 13 have the same diameter. The ball portion 12 is coaxially sleeved at the junction of the short axis portion 11 and the long axis portion 13; a straight groove 111 is provided at one end of the short axis portion 11 away from the ball portion 12 to communicate with the end surface of the short axis portion 11, and a straight groove 111 is provided at one end of the long axis portion 13 away from the ball portion 12 to penetrate along the radial direction of the long axis portion 13. The circular connecting hole 131, the length extension direction of the straight groove 111 is parallel to the axial direction of the short axis portion 11, the groove depth direction of the straight groove 111 is perpendicular to the opening direction of the connecting hole 131, and a semicircular groove 121 is opened on the surface of the ball portion 12, the groove depth direction of the semicircular groove 121 is perpendicular to the axial direction of the short axis portion 11, and the groove depth direction of the semicircular groove 121 is at a 45° angle to the groove depth direction of the straight groove 111, and the groove depth direction of the semicircular groove 121 is also at a 45° angle to the opening direction of the connecting hole 131.

[0035] Reference Figure 2 The spindle straightness detection tooling includes a rectangular placement seat 2, an oblique positioning block 3 fixed on the placement seat 2, a horizontal inspection block 4 movably arranged on the placement seat 2, and an inspection pin 5 detachably plugged into the placement seat 2.

[0036] Specifically, refer to Figure 2 , Figure 3 and Figure 4 The placement seat 2 is placed horizontally, and a short axis groove 21 adapted to the specifications of the short axis portion 11 of the main shaft, a receiving groove 22 for placing the ball portion 12, and a long axis groove 23 adapted to the specifications of the long axis portion 13 are sequentially opened on the upper surface of the placement seat 2 along its length direction.

[0037] The short axis groove 21, the receiving groove 22 and the long axis groove 23 are all opened upward and connected to each other. The bottom surface of the short axis groove 21 is coplanar with the bottom surface of the long axis groove 23, and the bottom surface of the short axis groove 21 and the bottom surface of the long axis groove 23 are both semicircular; the bottom surface of the receiving groove 22 is located below the bottom surface of the short axis groove 21, and the bottom surface of the receiving groove 22 is a horizontal plane, and the height difference between the bottom surface of the receiving groove 22 and the lowest point of the bottom surface of the short axis groove 21 is equal to the difference between the radius of the ball portion 12 of the main shaft and the radius of the short axis portion 11.

[0038] When the operator places the spindle 1 to be tested on the placement seat 2 and makes the ball portion 12 of the spindle 1 to be tested close to the bottom surface of the accommodating groove 22, the lower side of the short axis portion 11 of the spindle 1 to be tested abuts against the bottom surface of the short axis groove 21, and the lower side of the long axis portion 13 of the spindle 1 to be tested abuts against the bottom surface of the long axis groove 23.

[0039] Further, see Figure 3 The oblique positioning block 3 protrudes upward and is inclined on the bottom surface of the accommodating groove 22. The oblique positioning block 3 is a rectangular block. The oblique positioning block 3 is adapted to the specifications of the semicircular groove 121, and the long side direction of the oblique positioning block 3 is consistent with the long side direction of the placement seat 2. The oblique positioning block 3 and the bottom surface of the accommodating groove 22 are set at a 45° angle; the side surface of the oblique positioning block 3 close to the short axis groove 21 is coplanar with the side groove wall of the accommodating groove 22 close to the short axis groove 21, and the length of the oblique positioning block 3 is equal to the diameter length of the ball portion 12 of the main shaft 1 to be measured, the length of the accommodating groove 22 is between twice and three times the diameter length of the ball portion 12, and the accommodating groove 22 is connected to the two side surfaces of the placement seat 2 along the length direction.

[0040] During the processing of the spindle in the background technology, the operator can place the spindle 1 to be measured from top to bottom on the placement seat 2, and make the ball part 12 of the spindle 1 to be measured close to the bottom surface of the receiving groove 22, push the spindle 1 to be measured along the length extension direction of the placement groove and make the semicircular groove 121 of the ball part 12 and the oblique positioning block 3 plug and cooperate, so that the ball part 12 of the spindle 1 to be measured and the side wall of the receiving groove 22 close to the short axis groove 21 are pressed against each other, thereby realizing the pre-positioning of the spindle 1 to be measured.

[0041] Further, see Figure 3 The placement seat 2 is provided with a plug-in slot 24 perpendicular to and connected to the short axis slot 21 on one side along its length direction. The opening of the plug-in slot 24 is rectangular, and the transverse check block 4 is a rectangular block. The transverse check block 4 is movably plugged into the plug-in slot 24, and the four side walls of the transverse check block 4 along the length direction are in contact with the upper, lower, left and right groove walls of the plug-in slot 24.

[0042] When the spindle 1 to be tested is pre-positioned on the placement seat 2 by the oblique positioning block 3, the straight groove 111 of the spindle 1 to be tested is located in the short axis groove 21; the straight groove 111 of the spindle 1 to be tested with qualified straightness can be directly opposite to and connected with the plug-in groove 24, and the transverse inspection block 4 can penetrate the plug-in groove 24 and be inserted into the straight groove 111 of the spindle 1 to be tested; the straight groove 111 of the spindle 1 to be tested with unqualified straightness is staggered with the plug-in groove 24, and the transverse inspection block 4 cannot penetrate the plug-in groove 24 and be inserted into the straight groove 111 of the spindle 1 to be tested.

[0043] Further, see Figure 2 and Figure 3 In order to detect the connecting hole 131 of the main shaft 1 to be tested, a circular inspection hole 25 matching the connecting hole 131 of the long axis portion 13 is opened on the bottom wall of the long axis groove 23 .

[0044] The inspection hole 25 opens upward, and the depth of the inspection hole 25 is consistent with the depth of the short axis groove 21 , the long axis groove 23 , and the accommodating groove 22 and the height direction of the placement seat 2 .

[0045] The inspection pin 5 is cylindrical, and the radius of the inspection pin 5 is consistent with the radius of the inspection hole 25 and the radius of the connecting hole 131 . The inspection pin 5 can be detachably inserted into the inspection hole 25 .

[0046] Reference Figure 4 When the transverse inspection block 4 can be placed in the straight groove 111 of the main shaft 1 to be tested, the operator can insert the inspection pin 5 into the connecting hole 131 of the main shaft 1 to be tested, and detect the relative position between the connecting hole 131 and the semicircular groove 121 of the main shaft 1 to be tested by checking whether the pin 5 can pass through the connecting hole 131 and be inserted into the inspection hole 25.

[0047] Specifically, in the embodiment of the present application, when the oblique positioning block 3 is inserted into the semicircular groove 121 of the spindle 1 to be measured, and the transverse inspection block 4 can be inserted into the straight groove 111 of the spindle 1 to be measured through the insertion groove 24, when the inspection pin 5 can be inserted into the inspection hole 25 on the placement seat 2 through the connecting hole 131 of the spindle 1 to be measured, the straightness of the spindle 1 to be measured meets the standard; when the inspection pin 5 cannot be inserted into the inspection hole 25 on the placement seat 2 through the connecting hole 131 of the spindle 1 to be measured, the straightness of the spindle 1 to be measured does not meet the standard, and the spindle 1 to be measured is a defective product.

[0048] In summary, after the above-mentioned inspection method is used to inspect the spindle 1 to be tested, the inspection steps are overall simple and convenient, the inspection efficiency is high, and the inspection error is small, which effectively overcomes the defects of low inspection efficiency and error in the existing spindle inspection method in the background technology.

[0049] At the same time, refer to Figure 2 and Figure 4 In order to enable the operator to effectively observe and detect the length of the short axis portion 11, the length of the long axis portion 13 and the overall length of the spindle 1 to be tested while detecting the straightness of the spindle 1 to be tested, a limit block 26 is protruded from the bottom surface of the end of the short axis groove 21 away from the accommodating groove 22, and a limit groove 27 connected to the long axis groove 23 is also provided on the placement seat 2 at the end of the long axis groove 23 away from the accommodating groove 22; and the distance between the limit block 26 and the accommodating groove 22 is equal to the length of the short axis portion 11. When the spindle 1 to be tested predetermined to be located on the placement seat 2 is a qualified product, the end face of the short axis portion 11 of the spindle 1 to be tested abuts against the limit block 26, and the end face of the long axis portion 13 of the spindle is coplanar with the end face of the groove wall of the limit groove 27 on one side close to the accommodating groove 22.

[0050] With the help of the limit block 26 and the limit groove 27, the operator can conveniently observe and detect the length of the short axis 11, the length of the long axis 13 and the overall length of the spindle 1 to be tested while detecting the straightness of the spindle 1 to be tested.

[0051] Furthermore, in order to reduce the collision between the spindle 1 to be tested and the placement seat 2 during the straightness detection process, refer to Figure 2 The joints of any two adjacent side surfaces of the placement seat 2 are in an arc transition.

[0052] The implementation principle of a spindle straightness detection tooling of an embodiment of the present application is as follows: by placing the spindle 1 to be tested on the placement seat 2, and making the semicircular groove 121 of the ball part 12 of the spindle 1 to be tested cooperate with the oblique positioning block 3, the operator can insert the transverse inspection block 4 into the short axis groove 21, and realize the effective detection of the relative position between the straight groove 111 and the semicircular groove 121 of the spindle 1 to be tested by whether the transverse inspection block 4 can be inserted into the straight groove 111 of the spindle 1 to be tested, and after the transverse inspection block 4 is inserted into the straight groove 111 of the spindle 1 to be tested, the inspection pin 5 can pass through the connecting hole 131 of the spindle 1 to be tested and be inserted into the inspection hole 25 on the placement seat 2, so as to realize the effective detection of the relative position between the connecting hole 131 to be tested and the semicircular groove 121, thereby realizing the detection of the straightness of the spindle 1 to be tested more conveniently and efficiently, with high overall detection efficiency, small detection error and convenient operation.

[0053] Example 2

[0054] Reference Figure 5 and Figure 3 The difference between this embodiment and embodiment 1 is that an anti-dropout block 41 is protruding from the middle of the horizontal inspection block 4, and an anti-dropout groove connected to the plug-in groove 24 is provided on the placement seat 2 at the middle of the plug-in groove 24, and the anti-dropout block 41 is slidably connected to the anti-dropout groove.

[0055] The implementation principle of Example 2 is: when the detection tool is in an idle state, the transverse detection block 4 is not easy to slip off the placement seat 2, which is convenient for the operator to effectively store the detection tool.

[0056] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A spindle straightness detection tool, characterized in that: The invention comprises a placement seat (2) in the shape of a rectangular parallelepiped, wherein the upper surface of the placement seat (2) is provided with a short axis groove (21) adapted to the specifications of the short axis portion (11) of the main axis, a receiving groove (22) for receiving the ball portion (12), and a long axis groove (23) adapted to the specifications of the long axis portion (13) in sequence along the length direction thereof, wherein the short axis groove (21), the receiving groove (22), and the long axis groove (23) are all opened upward and are connected, the bottom surface of the short axis groove (21) is coplanar with the bottom surface of the long axis groove (23), the bottom surface of the receiving groove (22) is located below the bottom surface of the short axis groove (21), and the height difference between the bottom surface of the receiving groove (22) and the bottom surface of the short axis groove (21) is equal to the height difference between the bottom surface of the main axis The difference between the radius of the ball part (12) and the radius of the short axis part (11) of the shaft; an oblique positioning block (3) matching the specification of the semicircular groove (121) is protruding upward and inclined on the bottom surface of the accommodating groove (22); a plug-in groove (24) perpendicular to and connected to the short axis groove (21) is opened on one side of the placement seat (2) along its length direction; a transverse inspection block (4) matching the straight groove (111) is movably inserted in the plug-in groove (24); a circular inspection hole (25) matching the connecting hole (131) of the long axis part (13) is opened on the bottom wall of the long axis groove (23); and an inspection pin (5) is detachably inserted in the inspection hole (25).

2. The spindle straightness detection tool according to claim 1, characterized in that: A limiting block (26) is protruding from the bottom surface of one end of the short axis groove (21) away from the containing groove (22), and the distance between the limiting block (26) and the containing groove (22) is equal to the length of the short axis portion (11).

3. The spindle straightness detection tool according to claim 2, characterized in that: A limiting groove (27) communicating with the long axis groove (23) is also provided on the placement seat (2) at one end of the long axis groove (23) away from the receiving groove (22); when the main shaft is placed on the placement seat (2) and the end face of the short axis portion (11) of the main shaft abuts against the limiting block (26), the end face of the long axis portion (13) of the main shaft and the end face of the groove wall of the limiting groove (27) on one side close to the receiving groove (22) are coplanar.

4. A spindle straightness detection tool according to any one of claims 1 to 3, characterized in that: The length of the accommodation groove (22) is between two and three times the diameter length of the ball part (12).

5. The spindle straightness detection tool according to claim 4, characterized in that: The accommodating groove (22) is connected to two side surfaces of the placement seat (2) along the length direction.

6. A spindle straightness detection tool according to any one of claims 1 to 3, characterized in that: The junction between any two adjacent side surfaces of the placement seat (2) forms an arc transition.

7. A spindle straightness detection tool according to any one of claims 1 to 3, characterized in that: An anti-dropout block (41) is protruding from the middle of the transverse inspection block (4), and an anti-dropout groove connected to the plugging groove (24) is provided on the placement seat (2) at the middle of the plugging groove (24), and the anti-dropout block (41) is slidably connected to the anti-dropout groove.

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