CN212779034U

CN212779034U - Gear modulus checking fixture

Info

Publication number: CN212779034U
Application number: CN202022165280.5U
Authority: CN
Inventors: 封俊贤; 施海华; 陆鑫
Original assignee: Shanghai Wanzhong Industrial Co ltd
Current assignee: Shanghai Wanzhong Industrial Co ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-03-23
Anticipated expiration: 2030-09-27

Abstract

The utility model relates to an utensil is examined to gear modulus especially relates to gear tooth root circle check out test set technical field, and it includes the base, the spout has been seted up on the base, it is provided with movable sub-seat to slide on the spout, the fixed solid stator seat that is provided with of one end that movable sub-seat was kept away from to the base, the fixed workstation that is provided with between activity sub-seat and the solid fixed sub-seat, the fixed setting of workstation on the base of workstation, be provided with the amesdial in the one side that workstation was kept away from to movable sub-seat, the one end that movable sub-seat and solid fixed sub-seat are close to the workstation all is provided with the test bar, the inside cavity of test bar, the one end that the test bar is close to the workstation is inserted and is equipped with the test head, be provided with the joint subassembly that. This application has and to change the test head fast, improves detection efficiency's effect.

Description

Gear modulus checking fixture

Technical Field

The application relates to the technical field of gear tooth root circle detection equipment, in particular to a gear modulus detection tool.

Background

Gears are common transmission parts, and power or stroke is transmitted through mutual meshing between the gears. In recent years, with the application of technologies such as full-tooth-surface grinding, the requirement on the tolerance of the diameter of a tooth root circle is more and more strict, the tooth root circle of a gear is positioned at the bottom of the tooth and is narrow, so that the measurement is more troublesome, and particularly, for gears with different tooth numbers, different test heads are required to be used, so that the gear needs to be disassembled and replaced.

The current test head is generally installed by adopting an insertion type installation method, a through hole is formed in the test rod, the test head is inserted into the test rod, the bolt penetrates through the through hole, the bolt is screwed down to enable the end part of the bolt to be abutted against the outer side wall of the test head, so that the fixing effect is achieved, and when the test head is disassembled, the bolt needs to be unscrewed and the test head is taken down. The mode of adopting the bolt to fix the test head has lower disassembly speed, and causes low detection efficiency.

In view of the above-mentioned related art, the inventor believes that there is a defect that the test head is not easily replaced quickly, thereby affecting the detection efficiency.

SUMMERY OF THE UTILITY MODEL

In order to improve the difficult quick replacement of test head to influence detection efficiency's defect, this application provides a gear modulus examines utensil.

The application provides a gear modulus examines utensil adopts following technical scheme:

the utility model provides an utensil is examined to gear modulus, includes the base, the spout has been seted up to the base top surface, be provided with the activity sub-seat that slides along the spout on the base, the fixed stator seat that is provided with of one end that the activity sub-seat was kept away from to the base, the fixed workstation that is provided with between activity sub-seat and the stator seat, the workstation is fixed to be set up on the base, be provided with the amesdial on the one side that the workstation was kept away from to the activity sub-seat, the one end that activity sub-seat and stator seat are close to the workstation all is provided with the test bar, the inside cavity of test bar, the test bar is close to the one end of workstation and is inserted and is equipped with the test head, be provided with the joint subassembly that is used.

Through adopting above-mentioned technical scheme, place the standard gear on the workstation, make the axis of standard gear align with the axis of test bar, slip the activity sub-seat, slowly adjust the position of activity sub-seat, make but the test head joint in the root of a gear department of standard gear, and record data through the amesdial, after the test is accomplished, lift up the activity sub-seat again, put into the gear that awaits measuring, make but the test head joint in the root of a gear department of awaiting measuring, record data and compare with standard gear data through the amesdial, the completion is to the measurement of the gear root of a gear circle that awaits measuring.

Preferably, the joint subassembly includes joint pole and wedge, set up flutedly on the test bar lateral wall, a through-hole has been seted up to the bottom of recess, a joint groove has been seted up on the lateral wall of test head, the one end of joint pole is passed the through-hole and is inserted the joint inslot, and its other end sets up with the bottom of wedge is fixed, the cover is equipped with the fixed sleeve that is used for the wedge joint in the recess on the test bar.

Through adopting above-mentioned technical scheme, when measuring the gear of different models, its test head needs to be changed according to the model, when the fixed sleeve that slides keeps away from the wedge, take out the wedge and drive the joint pole and lift up, can change the test head this moment, will treat to change the test head and insert back in the test rod, the fixed sleeve that slides again, fixed sleeve is close to the wedge, and act on the wedge surface and push down the joint pole, the joint pole is pegged graft in the ring channel, thereby accomplish the joint, the installation is convenient and the joint is firm.

Preferably, the clamping rod is sleeved with a compression spring, one end of the compression spring is fixed to the bottom of the wedge-shaped block, and the other end of the compression spring is fixedly arranged at the bottom of the groove.

Through adopting above-mentioned technical scheme, when the fixed sleeve that slides kept away from the wedge, compression spring acts on the wedge, drives the joint pole and lifts up, can take out the test head this moment, will treat to change the test head and insert back in the test rod, the fixed sleeve that slides again, fixed sleeve is close to the wedge to act on the wedge surface and push down the joint pole, thereby accomplish the joint, the simple operation only needs to remove fixed sleeve and can realize the joint of test head and dismantle and the joint firmly.

Preferably, the joint subassembly includes two at least picture pegs, the fixed one end that is close to the test bar that sets up at the test head of picture peg, be provided with the joint board that equals with picture peg quantity in the test bar, the distance between joint board and the test bar inner wall equals the thickness of picture peg, and is adjacent distance between the joint board is greater than or equal to the width of picture peg.

Through adopting above-mentioned technical scheme, when measuring the gear of different models, its test head needs to be changed according to the gear model, rotate the test head, make picture peg transfer joint board and test rod inner wall, can extract the test head this moment and change, will wait to change the test head and insert back in the test rod, rotate the test head again, make the picture peg joint between joint board and test rod inner wall, thereby accomplish the joint, the simple installation and the dismantlement of test head can be accomplished to the test head that only needs to rotate of operation process.

Preferably, the inner side surface of the inserting plate is provided with a protrusion, and the side surface, close to the test rod, of the clamping plate is provided with an arc-shaped groove matched with the protrusion.

Through adopting above-mentioned technical scheme, rotate the test head for when the picture peg joint was between joint board and test bar inner wall, the arch was pegged graft in the arc wall, and the joint was firm when making the test head dismouting convenient, has reduced because of receiving the emergence of powerful external force by the forced extraction phenomenon.

Preferably, the top of the base is obliquely arranged, and the installation height of the movable sub-base is higher than that of the fixed sub-base.

Through adopting above-mentioned technical scheme, when measuring the gear that awaits measuring, the activity sub-seat receives action of gravity and inclined plane guide, and the joint that the lateral wall of the test head of activity sub-seat one end can be tight just is difficult for taking place to slide between the tooth root of the examination gear to improved detection efficiency and detection precision.

Preferably, the fixed baffle that is provided with of one end that is close to fixed stator seat on the workstation, waist type hole has been seted up along baffle length direction to the baffle side, be provided with the limiting plate that slides and set up with waist type hole on the workstation.

Through adopting above-mentioned technical scheme, place the back on the workstation with the standard gear, the test head that drives it through the activity subbase that slides measures the root circle of standard gear tooth, the limiting plate slides this moment, make limiting plate and standard gear side butt, thereby confirm the axis parallel with the test bar on the workstation, when measuring the gear that awaits measuring, can directly lean on the side of awaiting measuring the gear on the limiting plate, the test head on the rethread activity subbase measures it and through the amesdial count, quick location has been realized, can place the gear that awaits measuring fast and wait to detect the department, and the detection efficiency is improved.

Preferably, the workbench is fixedly provided with a limiting rod between the movable sub-seat and the fixed sub-seat, and the limiting rod is sleeved with a limiting sleeve with the same inner diameter as the standard gear.

Through adopting above-mentioned technical scheme, the gag lever post is located the axis of activity sub-seat and stator seat, when the cover was established with the same stop collar of standard gear internal diameter, again will await measuring the gear sleeve and establish on stop collar, the axis of the gear that awaits measuring this moment aligns with the axis of test bar, can be quick fix a position the gear that awaits measuring, the butt that the test head can be accurate is in the tooth root department at the gear both ends that awaits measuring, thereby reduced the deviation of amesdial to the gear testing data that awaits measuring, detection efficiency has been improved.

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

1. placing a standard gear on a workbench, aligning the axis of the standard gear with the axis of a test rod, sliding a movable sub-base, slowly adjusting the position of the movable sub-base, enabling a test head to be clamped at the tooth root of the standard gear, measuring data through a dial indicator, lifting the movable sub-base after the test is finished, placing the movable sub-base into a gear to be tested, enabling the test head to be clamped at the tooth root of the gear to be tested, measuring the data through the dial indicator, comparing the data with the data of the standard gear, and finishing the measurement of the tooth root circle of the gear to be tested;

2. when the sliding fixing sleeve is far away from the wedge block, the compression spring acts on the wedge block to drive the clamping rod to lift up, the test head can be taken out at the moment, the fixing sleeve slides after the test head to be replaced is inserted into the test rod, the fixing sleeve is close to the wedge block and acts on the surface of the wedge block to press down the clamping rod, so that clamping is completed, the clamping operation is convenient and fast, clamping and detachment of the test head can be realized only by moving the fixing sleeve, and the clamping is firm;

3. when measuring the gear of different models, its test head needs to be changed according to the gear model, rotates the test head for the picture peg is changeed joint board and test bar inner wall, can extract the test head this moment and is changed, will wait to change the test head and insert the back in the test bar, rotates the test head again, makes the picture peg joint between joint board and test bar inner wall, thereby accomplishes the joint, the simple installation and the dismantlement of test head can be accomplished to the convenient only rotation test head of operation.

Drawings

FIG. 1 is a schematic overall structure diagram of a gear module checking fixture in embodiment 1 of the present application;

FIG. 2 is a schematic sectional view of a test head and test bar connecting structure in example 1 of the present application;

FIG. 3 is a view taken in the direction A of FIG. 2;

fig. 4 is a schematic view of the connection structure of the test head and the test rod in embodiment 2 of the present application.

Reference numerals: 1. a base; 2. a chute; 3. a movable sub-base; 4. fixing the stator base; 5. a work table; 6. a dial indicator; 7. a test rod; 8. a test head; 9. a clamping assembly; 91. a clamping and connecting rod; 92. a wedge block; 93. a compression spring; 94. inserting plates; 95. a clamping and connecting plate; 10. fixing the sleeve; 11. a groove; 12. a through hole; 13. a clamping groove; 14. a protrusion; 15. an arc-shaped slot; 16. a baffle plate; 17. a kidney-shaped hole; 18. a limiting plate; 19. a limiting rod; 20. and a limiting sleeve.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

Example 1:

the embodiment of the application discloses a gear module checking fixture, and referring to fig. 1 and fig. 2, the gear module checking fixture comprises a base 1, the top of the base 1 is obliquely arranged, a chute 2 is arranged on the top surface of the base 1 along the length direction, the chute 2 is positioned on the central axis of the upper surface of the base 1, the length of the chute 2 is smaller than that of the base 1, a movable sub-base 3 is arranged on the base 1 in a sliding manner along the direction of the chute 2, a fixed sub-base 4 is fixedly arranged at one end of the base 1 far away from the movable sub-base 3, the movable sub-base 3 is higher than the fixed sub-base 4, the fixed sub-base 4 and the movable sub-base 3 are positioned on the same axis, a workbench 5 is fixedly arranged between the movable sub-base 3 and the fixed sub-base 4, the workbench 5 is fixedly arranged on the upper surface of the base 1, a dial indicator 6 is arranged on one surface of the movable sub-base 3 far away from the workbench 5, and one ends, the test rod 7 is hollow, and a test head 8 is inserted into one end, close to the workbench 5, of the test rod 7.

The testing device comprises a workbench 5, a testing rod 7, a movable sub-seat 3, a testing head 8, a dial indicator 6, a movable sub-seat 3, a testing head 6 and a dial indicator 6, wherein the standard gear is placed on the workbench 5, the axis of the standard gear is aligned with the axis of the testing rod 7, the movable sub-seat 3 is slid, the position of the movable sub-seat 3 is adjusted, the testing head 8 can be connected to the tooth root of the standard gear in a clamped mode, data are tested through the dial indicator 6 and compared with the data of the standard gear, and the measurement of the tooth root circle of the gear to be tested is completed.

For making test head 8 be convenient for change and the joint firm, refer to fig. 2 and fig. 3, be provided with on test rod 7 and the test head 8 and be used for the joint subassembly 9 with test rod 7 and the joint of test head 8, joint subassembly 9 includes joint pole 91 and wedge 92, a recess 11 has been seted up on the lateral wall of test rod 7, a through-hole 12 has been seted up to the bottom of recess 11, a joint groove 13 has been seted up on the lateral wall of test head 8, the one end of joint pole 91 is passed through-hole 12 and is inserted in joint groove 13, its other end and the fixed setting in bottom of wedge 92, the cover is equipped with compression spring 93 on joint pole 91, compression spring 93 one end is fixed in wedge 92 bottom, its other end is fixed to be set up in recess 11 bottom. The test rod 7 is sleeved with a fixing sleeve 10 used for clamping the wedge block 92 in the groove 11.

When the fixed sleeve 10 that slides keeps away from wedge 92, compression spring 93 acts on wedge 92, drive joint pole 91 and lift up, can take out test head 8 this moment, will wait to change after test head 8 inserts test bar 7, the fixed sleeve 10 that slides again, when fixed sleeve 10 is close to wedge 92, act on the upper surface of wedge 92 and push down joint pole 91, thereby accomplish the joint, the simple operation only needs to remove fixed sleeve 10 and can realize the joint of test head 8 and dismantle and the joint is firm.

In order to enable the gear to be tested to be rapidly placed on the central axis of the two testing heads 8 of the movable sub-seat 3 and the fixed sub-seat 4, referring to fig. 1, a baffle 16 is fixedly arranged at one end, close to the fixed sub-seat 4, of the workbench 5, a waist-shaped hole 17 is formed in the side face of the baffle 16 in the length direction of the baffle 16, a limiting plate 18 arranged in a sliding mode with the waist-shaped hole 17 is arranged on the workbench 5, and the side edge position of the gear to be tested can be determined through sliding of the limiting plate 18. The workbench 5 is fixedly provided with a limiting rod 19 between the movable sub-base 3 and the fixed sub-base 4, and the limiting rod 19 is sleeved with a limiting sleeve with the same inner diameter as the standard gear.

The gag lever post 19 is located the axis of activity subbase 3 and stator 4, the cover is equipped with the stop sleeve 20 the same with the standard gear internal diameter on the gag lever post 19, establish back on stop sleeve 20 with the standard gear cover again, the axis of the gear that awaits measuring this moment aligns with the axis of test bar 7, can be quick fix a position the gear that awaits measuring, the butt that the test head 8 can be accurate is in the tooth root department at the gear both ends that awaits measuring, thereby reduced the deviation of amesdial 6 to the gear detection data that awaits measuring, and the detection efficiency is improved.

The working process and the beneficial effects of the gear module checking fixture in the embodiment of the application are as follows: aiming at the gear model to be tested, the test head 8 is replaced, the sliding fixing sleeve 10 is far away from the wedge block 92, the test head 8 is taken down, after the corresponding test head 8 is replaced, the sliding fixing sleeve 10 is used for fixing the test head 8, then the standard gear is sleeved on the limiting sleeve 20, the movable sub-seat 3 is slid, the position of the movable sub-seat 3 is adjusted, the test head 8 can be clamped at the tooth root of the standard gear, data are tested through the dial indicator 6, after the data are tested, the movable sub-seat 3 is lifted up, the gear to be tested is sleeved on the limiting sleeve 20, the data are tested again through the dial indicator 6 and are compared with the data of the standard gear, and the measurement of the tooth root circle of the gear to be tested is completed.

Example 2:

the embodiment of the application discloses utensil is examined to gear modulus, the difference of this embodiment of the application and embodiment 1 lies in, refer to fig. 4, joint subassembly 9 includes three picture peg 94, the fixed one end that is close to test bar 7 at test head 8 that sets up of picture peg 94, be provided with protruding 14 on the picture peg 94 medial surface, test bar 7 internal fixation is provided with the joint board 95 that equals with picture peg 94 quantity, joint board 95 is the L type, its one end is fixed with test bar 7 inner wall, the other end is parallel with test bar 7 inner wall, be provided with the arc wall 15 with protruding 14 looks adaptations on the side that joint board 95 is close to test bar 7. The distance between the chucking plates 95 and the inner wall of the test bar 7 is equal to the thickness of the insert plate 94, and the distance between adjacent chucking plates 95 is greater than or equal to the width of the insert plate 94.

When measuring the gear of different models, its test head 8 needs to be changed according to the gear model, rotate test head 8, make picture peg 94 roll out joint board 95 and test bar 7 inner wall, can extract test head 8 this moment and change, will wait to change test head 8 and insert back in the test bar 7, rotate test head 8 again, make picture peg 94 joint between joint board 95 and test bar 7 inner wall, thereby accomplish the joint, the simple installation and the dismantlement that only need rotate test head 8 and can accomplish test head 8 of operation process.

The working process and the beneficial effects of the gear module checking fixture in the embodiment of the application are as follows: aiming at the model of the gear to be tested, the test head 8 is replaced, the test head 8 is rotated to enable the plug board 94 to rotate out of the position between the clamping board 95 and the inner wall of the test rod 7, the test head 8 is taken down, after the corresponding test head 8 is replaced, the test head 8 is rotated again, the plug board 94 is clamped between the clamping board 95 and the inner wall of the test rod 7 again, then the standard gear is sleeved on the limiting sleeve 20, the movable sub-seat 3 is slid, the position of the movable sub-seat 3 is adjusted, the test head 8 can be clamped at the tooth root of the standard gear, data are tested through the dial indicator 6, after the data are tested, the movable sub-seat 3 is lifted up again, the gear to be tested is sleeved on the limiting sleeve 20, the data are tested again through the dial indicator 6 and compared with the data of the standard gear, and the measurement of.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A gear module checking fixture is characterized by comprising a base (1), wherein a sliding groove (2) is formed in the top surface of the base (1), a movable sub-base (3) which slides along the sliding groove (2) is arranged on the sliding groove (2), a fixed sub-base (4) is fixedly arranged at one end, far away from the movable sub-base (3), of the base (1), a workbench (5) is fixedly arranged between the movable sub-base (3) and the fixed sub-base (4), the workbench (5) is fixedly arranged on the base (1), a dial indicator (6) is arranged on one surface, far away from the workbench (5), of the movable sub-base (3) and one end, close to the workbench (5), of the fixed sub-base (4) are respectively provided with a testing rod (7), the testing rods (7) are hollow inside, one ends, close to the workbench (5), of the testing rods (7) are inserted with testing heads (8), the testing rod (7) and the testing head (8) are provided with clamping components (9) used for clamping the testing rod (7) and the testing head (8).

2. The gear module testing fixture according to claim 1, wherein the clamping assembly (9) comprises a clamping rod (91) and a wedge block (92), a groove (11) is formed in the outer side wall of the testing rod (7), a through hole (12) is formed in the bottom of the groove (11), a clamping groove (13) is formed in the outer side wall of the testing head (8), one end of the clamping rod (91) penetrates through the through hole (12) and is inserted into the clamping groove (13), the other end of the clamping rod is fixedly arranged with the bottom of the wedge block (92), and a fixing sleeve (10) for clamping the wedge block (92) in the groove (11) is sleeved on the testing rod (7).

3. The gear module testing fixture of claim 2, wherein a compression spring (93) is sleeved on the clamping rod (91), one end of the compression spring (93) is fixed at the bottom of the wedge-shaped block (92), and the other end of the compression spring is fixed at the bottom of the groove (11).

4. The gear module testing fixture according to claim 1, wherein the clamping assembly (9) comprises at least two insertion plates (94), the insertion plates (94) are fixedly arranged at one end of the testing head (8) close to the testing rod (7), clamping plates (95) with the same number as the insertion plates (94) are arranged in the testing rod (7), the distance between each clamping plate (95) and the inner wall of the testing rod (7) is equal to the thickness of each insertion plate (94), and the distance between every two adjacent clamping plates (95) is greater than or equal to the width of each insertion plate (94).

5. The gear module testing fixture according to claim 4, wherein a protrusion (14) is arranged on the inner side surface of the inserting plate (94), and an arc-shaped groove (15) matched with the protrusion (14) is arranged on the side surface of the inserting plate (95) close to the testing rod (7).

6. The gear module testing fixture of claim 1, wherein the top of the base (1) is inclined, and the installation height of the movable sub-base (3) is higher than that of the fixed sub-base (4).

7. The gear module testing fixture according to claim 1, wherein a baffle (16) is fixedly arranged at one end of the workbench (5) close to the fixed stator seat (4), a waist-shaped hole (17) is formed in the side surface of the baffle (16) along the length direction of the baffle (16), and a limiting plate (18) which is arranged in a sliding manner with the waist-shaped hole (17) is arranged on the workbench (5).

8. The gear module testing fixture according to claim 1, wherein a limiting rod (19) is fixedly arranged between the movable sub-base (3) and the fixed sub-base (4) of the workbench (5), and a limiting sleeve (20) with the same inner diameter as that of a standard gear is sleeved on the limiting rod (19).