Tooth aligning clamp for position degree of long key groove of shaft part

Abstract

The invention provides a tooth alignment clamp for the position degree of a long key groove of a shaft part, which comprises a tooth alignment mistake proofing mechanism, the tooth alignment mistake proofing mechanism comprises a sliding block, and the sliding block is mounted on a tooth alignment seat and can reciprocate in the longitudinal direction; a tooth aligning gauge is further installed on the tooth aligning base, and the central axis of the tooth aligning gauge is arranged in the longitudinal direction. And a mistake-proof extension rod is arranged at the longitudinal rear end of the sliding block and is arranged in the transverse direction. The tooth alignment mistake-proofing mechanism further comprises a mistake-proofing tooth alignment seat, the mistake-proofing tooth alignment seat is installed on the mistake-proofing extension rod, and a mistake-proofing tooth alignment gauge measuring head is further arranged in the mistake-proofing tooth alignment seat. The central axis of the error-proof tooth gauge measuring head is arranged along the longitudinal direction. The tooth aligning gauge in the device is mainly used for aligning teeth in the machining process, and the accuracy of the position degree of the long key groove is guaranteed. The tooth alignment mistake-proofing mechanism is mainly used for preventing tooth alignment mistakes and plays a role in distinguishing and mistake proofing in advance.

Description

Technical Field

[0001] The invention belongs to the technical field of transmissions, relates to an intermediate shaft, and in particular to a tooth alignment fixture used for measuring the position of a long keyway of a shaft part. Background Art

[0002] The dual intermediate shaft transmission has become the main type of transmission for domestic heavy trucks due to its strong load-bearing capacity and low failure rate. The dual intermediate shaft transmission has a special design structure, and the core technology is gear alignment. The purpose of gear alignment is to ensure that the dual intermediate shaft drive gears are correctly meshed with the main shaft gears at the same time, so that the main shaft gears are coaxial with the main shaft and the load is evenly distributed.

[0003] The manufacturing accuracy of the intermediate shaft, especially the tooth accuracy, affects the load-bearing capacity of the entire transmission, thus affecting the service life of the transmission. The position accuracy of the long keyway of the intermediate shaft body is guaranteed by the tooth groove width of a gear ring indexing circle of the intermediate shaft body, so the position accuracy of the long keyway of the intermediate shaft body is more important. How to ensure the stability of the long keyway position during the machining process has become a key issue that needs to be solved urgently. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a tooth alignment fixture for the long keyway position accuracy of shaft parts, so as to solve the technical problem that the long keyway position accuracy on the intermediate shaft in the dual intermediate shaft structure transmission in the prior art needs to be further improved.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions to achieve the above problems:

[0006] A tooth alignment fixture for measuring the position of long keyways of shaft parts comprises a tooth alignment anti-misalignment mechanism, wherein the tooth alignment anti-misalignment mechanism comprises a slider which is mounted on a tooth alignment seat and can reciprocate in the longitudinal direction; a tooth alignment gauge is also mounted on the tooth alignment seat, and the central axis of the tooth alignment gauge is arranged along the longitudinal direction.

[0007] The longitudinal rear end of the sliding block is provided with an anti-error extension rod, which is arranged in the transverse direction.

[0008] The tooth misalignment prevention mechanism also includes an anti-misalignment tooth seat, which is installed on the anti-misalignment extension rod. An anti-misalignment tooth gauge probe is also arranged in the anti-misalignment tooth seat; the central axis of the anti-misalignment tooth gauge probe is arranged along the longitudinal direction.

[0009] The present invention also has the following technical features:

[0010] Preferably, the anti-error extension rod comprises an anti-error extension rod body, a longitudinally through-going anti-error tooth seat strip positioning hole is provided on the anti-error extension rod body near the right end, the left end face of the anti-error extension rod body is also integrated with an extension rod positioning block horizontally arranged, and a plurality of extension rod fixing screw holes are laterally provided along the upper edge of the left end face of the anti-error extension rod body, and the plurality of extension rod fixing screw holes are arranged on both sides of the extension rod positioning block.

[0011] Specifically, the anti-misalignment tooth seat includes an anti-misalignment tooth gauge probe positioning seat, and the longitudinal front end of the anti-misalignment tooth gauge probe positioning seat is also coaxially and integrally provided with an anti-misalignment tooth gauge probe through rod and an anti-misalignment tooth seat fixing seat; the width of the anti-misalignment tooth seat fixing seat is less than or equal to the width of the anti-misalignment tooth seat strip positioning hole, and the length of the anti-misalignment tooth seat fixing seat is less than the length of the anti-misalignment tooth seat strip positioning hole; the length of the anti-misalignment tooth seat fixing seat is greater than the width of the anti-misalignment tooth seat strip positioning hole.

[0012] The anti-misalignment gear gauge probe rod is clamped in the anti-misalignment gear seat strip positioning hole; the anti-misalignment gear gauge probe positioning seat is located at the longitudinal rear side of the anti-misalignment gear seat strip positioning hole; the anti-misalignment gear seat fixing seat is located at the longitudinal front side of the anti-misalignment gear seat strip positioning hole.

[0013] The anti-misalignment tooth seat fixing seat is also provided with a plurality of longitudinally penetrating anti-misalignment tooth seat locking screw holes, and the anti-misalignment tooth seat is installed on the anti-misalignment extension rod body through the cooperation of the anti-misalignment tooth seat locking screw holes and fastening bolts.

[0014] The anti-misalignment gear seat is also provided with a longitudinally through-going anti-misalignment gear gauge probe through-hole, in which an anti-misalignment gear gauge probe is installed; the side of the anti-misalignment gear gauge probe positioning seat is also provided with an anti-misalignment gear gauge probe locking screw hole, in which an anti-misalignment gear gauge probe locking bolt is arranged, and the anti-misalignment gear gauge probe locking bolt can lock the anti-misalignment gear gauge probe.

[0015] Specifically, the slider includes a skateboard, and a longitudinal rear end of the skateboard is provided with an extension rod bayonet that is transversely penetrating and open at the longitudinal rear end, and the interior of the extension rod bayonet can fit with the outer surface of the extension rod positioning block; the longitudinal rear end of the skateboard is provided with a plurality of transversely penetrating extension rod mounting screw holes, and the extension rod mounting screw holes correspond one by one to the extension rod fixing screw holes, and the error-proofing extension rod is installed to the extension rod mounting screw hole of the skateboard through the extension rod fixing screw hole.

[0016] A vertically penetrating limit block installation groove is provided on the right side surface of the middle section of the slide plate, a pair of limit blocks are also mirror-symmetrically installed in the limit block installation groove, and a second installation hole of the rotary shaft that horizontally penetrates the slide plate is also provided at the bottom of the limit block installation groove.

[0017] The longitudinal front end of the slide plate is also integrated with a gear gauge connecting rod vertically arranged, the lateral right end of the gear gauge connecting rod is connected to the longitudinal front end of the slide plate, and the lateral left end of the gear gauge connecting rod is provided with a gear gauge bayonet which is longitudinally through and open on the left side.

[0018] Specifically, the gear seat includes a gear seat body, and a longitudinally penetrating skateboard mounting groove is opened on the right side surface of the gear seat body. The vertical width of the skateboard mounting groove is equal to the vertical height of the skateboard, and the horizontal depth of the skateboard mounting groove is equal to the horizontal width of the skateboard. The skateboard is installed on the gear seat body through the skateboard mounting groove, and the skateboard can also move forward and backward in the longitudinal direction in the skateboard mounting groove relative to the gear seat body.

[0019] The gear seat body is also provided with a first rotating shaft mounting hole in the middle of the bottom of the skateboard mounting groove along the horizontal direction, and a rotating shaft is arranged in the first rotating shaft mounting hole. The gear seat body is also provided with multiple cover plate mounting screw holes in the horizontal direction on the vertical upper and lower sides of the skateboard mounting groove.

[0020] A longitudinally through-going gear gauge mounting hole is also provided on the front side of the gear seat body, in which a gear gauge is arranged. The gear gauge mounting hole and the first mounting hole of the rotating shaft do not contact each other, and the central axis of the gear gauge mounting hole and the central axis of the first mounting hole of the rotating shaft are located on the same horizontal plane.

[0021] Specifically, a left side fixed boss of the gear seat body is integrated at the bottom of the left side surface of the gear seat body, and a plurality of vertically through left side fixed waist-shaped holes of the gear seat are opened on the left side fixed boss of the gear seat body. The plurality of left side fixed waist-shaped holes of the gear seat are evenly arranged along the longitudinal direction, and the gear seat body is installed on the machine tool workbench through the plurality of left side fixed waist-shaped holes of the gear seat.

[0022] The right side bottom of the gear seat body is also integrated with a right side fixing boss of the gear seat body, and the right side fixing boss of the gear seat body is provided with a plurality of vertically penetrating right side fixing waist-shaped holes of the gear seat, and the plurality of right side fixing waist-shaped holes of the gear seat are evenly arranged along the longitudinal direction. The gear seat body is also installed on the machine tool workbench through the plurality of right side fixing waist-shaped holes of the gear seat.

[0023] A longitudinally penetrating square key installation groove is also provided in the middle of the vertical bottom of the gear seat body.

[0024] Specifically, the gear gauge comprises a cylindrical gear gauge body, and an annular groove is circumferentially provided on the gear gauge body near the longitudinal front end, the annular groove and the gear gauge bayonet are in fit, and the gear gauge can move forward and backward in the longitudinal direction driven by the gear gauge connecting rod.

[0025] The longitudinal rear section of the gear gauge body is installed in the gear gauge installation hole. The gear gauge body can move forward and backward in the longitudinal direction relative to the gear gauge installation hole. The longitudinal rear end of the gear gauge body protrudes from the longitudinal rear side of the gear seat body.

[0026] The longitudinal rear end of the tooth gauge body is also provided with a tooth groove fitting surface.

[0027] Specifically, a horizontally penetrating rotary shaft installation groove is respectively provided in the middle of the adjacent sides of the pair of limit blocks, and the inner surfaces of the two rotary shaft installation grooves form a rotary shaft fitting surface.

[0028] The vertical height of the limit block is equal to the vertical width of the skateboard mounting groove, the horizontal thickness of the limit block is equal to the horizontal depth of the limit block mounting groove, and the vertical width of the limit block is equal to the vertical length of the limit block mounting groove.

[0029] Specifically, the rotary shaft includes an integrally arranged inner mounting shaft section of the gear seat, an eccentric cam, an inner mounting shaft section of the cover plate, and an outer knob shaft section of the cover plate.

[0030] The mounting shaft section inside the gear seat, the mounting shaft section inside the cover plate and the knob shaft section outside the cover plate are coaxially arranged.

[0031] The inner mounting shaft section of the gear holder is rotatably mounted on the gear holder body through the second mounting hole of the rotary shaft and the first mounting hole of the rotary shaft in sequence from right to left in the transverse direction.

[0032] The eccentric cam can contact with the fitting surface of the rotary shaft during the rotation process, so that the limit block drives the slider to reciprocate in the longitudinal direction.

[0033] The cover plate inner installation shaft section is rotatably installed in the cover plate.

[0034] The cover plate outer knob shaft section is arranged on the outer side of the cover plate.

[0035] Specifically, the cover plate comprises a cover plate body, on which a plurality of transversely penetrating cover plate fixing screw holes are provided, and the cover plate fixing screw holes correspond to the cover plate installation screw holes one by one.

[0036] The cover plate body is also provided with a third installation hole for the rotary shaft which runs transversely through, and a shaft section for installation in the cover plate is rotatably installed in the third installation hole for the rotary shaft.

[0037] The cover plate body can be installed on the right lateral side of the gear seat body through the cover plate fixing screw holes.

[0038] Compared with the prior art, the present invention has the following technical effects:

[0039] (I) The main function of the gear alignment gauge in the device of the present invention is to perform gear alignment during the machining process to ensure the accuracy of the long keyway position; the main function of the gear alignment anti-error mechanism is to prevent gear alignment errors and play a role in pre-judgment and error prevention; the device is used to ensure the machining accuracy of the long keyway position of the intermediate shaft, which is particularly suitable for the case where the long keyway position of the intermediate shaft is required to be based on the tooth groove width of the intermediate shaft body gear ring pitch circle, and the effect is particularly significant, which can ensure the quality of the intermediate shaft product.

[0040] (II) The device structure of the present invention is technically reasonable, easy to operate and has a good clamping effect. At the same time, it is flexible and convenient to use, has a wide range of applications, is highly interchangeable, and can be assembled with a quick-change structure. It has been verified to have a good effect and meets the mass production and processing capabilities.

[0041] (III) The device in the present invention can ensure that the position accuracy of the long keyway of the intermediate shaft based on the intermediate shaft gear ring is qualified, which solves the position accuracy requirement of the long keyway of the intermediate shaft during machining, and can ensure batch processing of the long keyway of the intermediate shaft, and the process is stable, which is of great significance to improving the product quality, processing efficiency and cost control of the intermediate shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the structure of the device in the present invention when aligning teeth.

[0043] Figure 2 It is a schematic diagram of the overall structure of the device in the present invention.

[0044] Figure 3 It is a structural schematic diagram of the tooth misalignment prevention mechanism in the present invention.

[0045] Figure 4 It is a schematic structural diagram of the error-proof extension rod in the present invention.

[0046] Figure 5 It is a structural schematic diagram of the slider in the present invention.

[0047] Figure 6 It is a schematic structural diagram of the anti-misalignment gear seat in the present invention.

[0048] Figure 7 It is a schematic diagram of the structure of the anti-misalignment gear gauge probe in the present invention.

[0049] Figure 8 It is a schematic structural diagram of the gear holder in the present invention.

[0050] Fig. 9 It is a schematic diagram of the structure of the quadrilateral bond in the present invention.

[0051] Fig.10 It is a schematic structural diagram of the tooth gauge in the present invention.

[0052] Fig.11 It is a schematic diagram of the structure of the limit block in the present invention.

[0053] Fig.12 It is a schematic diagram of the structure of the rotary shaft in the present invention.

[0054] Fig.13 It is a schematic diagram of the structure of the cover plate in the present invention.

[0055] The meanings of the numbers in the figure are: 1-tooth misalignment prevention mechanism, 2-slider, 3-anti-misalignment extension rod, 4-anti-misalignment tooth seat, 5-tooth seat, 6-tooth gauge, 7-limit block, 8-rotating shaft, 9-cover plate, 10-anti-misalignment tooth gauge probe, 11-dividing circular tooth groove, 12-long keyway, 13-square key.

[0056] 201-slide plate, 202-tooth gauge connecting rod, 203-tooth gauge bayonet.

[0057] 301-anti-mistake extension rod body, 302-anti-mistake tooth seat strip positioning hole, 303-extension rod positioning block, 304-extension rod fixing screw hole.

[0058] 401- anti-misalignment gear gauge probe positioning seat, 402- anti-misalignment gear gauge probe penetration rod, 403- anti-misalignment gear seat fixing seat, 404- anti-misalignment gear seat locking screw hole, 405- anti-misalignment gear gauge probe penetration hole.

[0059] 501-gear holder body, 502-slide plate mounting slot, 503-first mounting hole of rotary shaft, 504-cover plate mounting screw hole, 505-gear gauge mounting hole, 506-left fixed boss of gear holder body, 507-left fixed waist hole of gear holder, 508-right fixed boss of gear holder body, 509-right fixed waist hole of gear holder, 510-square key mounting slot.

[0060] 601-tooth gauge body, 602-annular groove, 603-tooth groove fitting surface.

[0061] 701-rotating shaft mounting groove, 702-rotating shaft fitting surface.

[0062] 801-shaft section installed in the gear seat, 802-eccentric cam, 803-shaft section installed in the cover plate, 804-shaft section of the knob outside the cover plate.

[0063] 901-cover body, 902-cover fixing screw hole, 903-the third mounting hole of the rotary shaft.

[0064] 20101-extension rod bayonet, 20102-extension rod mounting screw hole, 20103-limit block mounting groove, 20104-swivel shaft second mounting hole.

[0065] 40101- Anti-misalignment of the tooth gauge probe locking screw hole, 40102- Anti-misalignment of the tooth gauge probe locking bolt.

[0066] The specific contents of the present invention are further described in detail below in conjunction with the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0067] It should be noted that all equipment and components in the present invention, unless otherwise specified, all adopt equipment and components known in the prior art. For example, the machine tool worktable adopts the known machine tool worktable, the indexing circle tooth groove adopts the known indexing circle tooth groove, the long keyway adopts the known long keyway, and the center inspection standard parts adopt the known center inspection standard parts.

[0068] In the present invention, the OXYZ coordinate system is a three-dimensional rectangular coordinate system, the X axis is horizontal, and the X axis points to the right; the Y axis is vertical, and the Y axis points to the back; the Z axis is vertical, and the Z axis points to the top.

[0069] In accordance with the above technical scheme, specific embodiments of the present invention are given below. It should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical scheme of this application fall within the protection scope of the present invention.

[0070] Example:

[0071] This embodiment provides a tooth alignment fixture for measuring the position of a long keyway of a shaft part, such as Figures 1 to 4 As shown, it includes a gear misalignment prevention mechanism 1, which includes a slider 2. The slider 2 is installed on a gear seat 5 and can reciprocate in the longitudinal direction. A gear gauge 6 is also installed on the gear seat 5, and the central axis of the gear gauge 6 is arranged along the longitudinal direction.

[0072] like Figure 2 As shown, the longitudinal rear end of the slider 2 is provided with an anti-error extension rod 3, and the anti-error extension rod 3 is arranged in the transverse direction.

[0073] like Figures 2 to 7 As shown, the gear misalignment prevention mechanism 1 also includes an anti-misalignment gear seat 4, which is installed on the anti-misalignment extension rod 3, and an anti-misalignment gear gauge probe 10 is also arranged in the anti-misalignment gear seat 4; the central axis of the anti-misalignment gear gauge probe 10 is arranged along the longitudinal direction.

[0074] As a preferred solution of this embodiment, Figure 4As shown, the anti-error extension rod 3 includes an anti-error extension rod body 301, a longitudinally through-going anti-error tooth seat strip positioning hole 302 is opened on the anti-error extension rod body 301 near the right end, and an extension rod positioning block 303 is also integrated and horizontally arranged on the left end face of the anti-error extension rod body 301, and a plurality of extension rod fixing screw holes 304 are horizontally opened on the upper edge of the left end face of the anti-error extension rod body 301, and the plurality of extension rod fixing screw holes 304 are arranged on both sides of the extension rod positioning block 303.

[0075] As a preferred solution of this embodiment, Figure 6 As shown, the anti-misalignment gear seat 4 includes an anti-misalignment gear gauge probe positioning seat 401, and the longitudinal front end of the anti-misalignment gear gauge probe positioning seat 401 is also coaxially and integrally provided with an anti-misalignment gear gauge probe penetrating rod 402 and an anti-misalignment gear seat fixing seat 403; the width of the anti-misalignment gear seat fixing seat 403 is less than or equal to the width of the anti-misalignment gear seat strip positioning hole 302, and the length of the anti-misalignment gear seat fixing seat 403 is less than the length of the anti-misalignment gear seat strip positioning hole 302; the length of the anti-misalignment gear seat fixing seat 403 is greater than the width of the anti-misalignment gear seat strip positioning hole 302.

[0076] like Figure 2 As shown, the anti-misalignment gauge probe rod 402 is clamped in the anti-misalignment gear seat strip positioning hole 302; the anti-misalignment gauge probe positioning seat 401 is located at the longitudinal rear side of the anti-misalignment gear seat strip positioning hole 302; the anti-misalignment gear seat fixing seat 403 is located at the longitudinal front side of the anti-misalignment gear seat strip positioning hole 302.

[0077] like Figure 2 and Figure 6 As shown, the anti-misalignment tooth seat fixing seat 403 is also provided with a plurality of longitudinally through-going anti-misalignment tooth seat locking screw holes 404, and the anti-misalignment tooth seat 4 is installed on the anti-misalignment extension rod body 301 through the cooperation of the anti-misalignment tooth seat locking screw holes 404 and the fastening bolts.

[0078] like Figure 2 and Figure 6 As shown, a longitudinal through hole 405 for an anti-misalignment gear gauge probe is provided in the anti-misalignment gear seat 4, and an anti-misalignment gear gauge probe 10 is installed in the anti-misalignment gear gauge probe through hole 405; a side of the anti-misalignment gear gauge probe positioning seat 401 is also provided with an anti-misalignment gear gauge probe locking screw hole 40101, and an anti-misalignment gear gauge probe locking screw hole 40101 is provided with an anti-misalignment gear gauge probe locking bolt 40102, and the anti-misalignment gear gauge probe locking bolt 40102 can lock the anti-misalignment gear gauge probe 10.

[0079] As a preferred solution of this embodiment, Figure 5As shown, the slider 2 includes a slide plate 201, and the longitudinal rear end of the slide plate 201 is provided with an extension rod bayonet 20101 which is transversely penetrating and open at the longitudinal rear end, and the interior of the extension rod bayonet 20101 can fit with the outer surface of the extension rod positioning block 303; the longitudinal rear end of the slide plate 201 is provided with a plurality of transversely penetrating extension rod mounting screw holes 20102, and the extension rod mounting screw holes 20102 correspond one by one to the extension rod fixing screw holes 304, and the error-proofing extension rod 3 is installed to the extension rod mounting screw holes 20102 of the slide plate 201 through the extension rod fixing screw holes 304.

[0080] like Figure 5 As shown, a vertically penetrating limit block mounting groove 20103 is provided on the right side surface of the middle section of the skateboard 201, and a pair of limit blocks 7 are also mirror-symmetrically installed in the limit block mounting groove 20103. The bottom of the limit block mounting groove 20103 is also provided with a second mounting hole 20104 of the rotating shaft that transversely penetrates the skateboard 201.

[0081] like Figure 5 As shown, the longitudinal front end of the slide plate 201 is also integrated with a gear gauge connecting rod 202 vertically arranged, the lateral right end of the gear gauge connecting rod 202 is connected to the longitudinal front end of the slide plate 201, and the lateral left end of the gear gauge connecting rod 202 is provided with a gear gauge socket 203 that penetrates longitudinally and is open on the left side.

[0082] As a preferred solution of this embodiment, Figure 8 As shown, the gear seat 5 includes a gear seat body 501, and a longitudinally penetrating skateboard mounting groove 502 is opened on the right side surface of the gear seat body 501, the vertical width of the skateboard mounting groove 502 is equal to the vertical height of the skateboard 201, and the horizontal depth of the skateboard mounting groove 502 is equal to the horizontal width of the skateboard 201. The skateboard 201 is installed on the gear seat body 501 through the skateboard mounting groove 502, and the skateboard 201 can also move forward and backward in the longitudinal direction in the skateboard mounting groove 502 relative to the gear seat body 501.

[0083] like Figure 8 As shown, the gear seat body 501 is further provided with a first rotating shaft mounting hole 503 in the middle of the bottom of the skateboard mounting groove 502 along the horizontal direction, and a rotating shaft 8 is arranged in the first rotating shaft mounting hole 503. The gear seat body 501 is further provided with a plurality of cover plate mounting screw holes 504 in the horizontal direction on the vertical upper and lower sides of the skateboard mounting groove 502.

[0084] like Figure 8As shown, a longitudinally through-going gear gauge mounting hole 505 is provided on the front side of the gear seat body 501, and a gear gauge 6 is arranged in the gear gauge mounting hole 505. The gear gauge mounting hole 505 and the first mounting hole 503 of the rotating shaft do not contact each other, and the central axis of the gear gauge mounting hole 505 and the central axis of the first mounting hole 503 of the rotating shaft are located on the same horizontal plane.

[0085] As a preferred solution of this embodiment, Figure 8 As shown, a left side fixing boss 506 of the gear seat body is also integrated at the bottom of the left side surface of the gear seat body 501, and a plurality of vertically through-going left side fixing waist-shaped holes 507 of the gear seat are opened on the left side fixing boss 506 of the gear seat body. The plurality of left side fixing waist-shaped holes 507 of the gear seat are evenly arranged along the longitudinal direction, and the gear seat body 501 is installed on the machine tool workbench through the plurality of left side fixing waist-shaped holes 507 of the gear seat.

[0086] like Figure 8 As shown, a right side fixing boss 508 of the gear seat body is also integrated at the bottom of the right side surface of the gear seat body 501, and a plurality of vertically through right side fixing waist-shaped holes 509 of the gear seat are opened on the right side fixing boss 508 of the gear seat body. The plurality of right side fixing waist-shaped holes 509 of the gear seat are evenly arranged along the longitudinal direction, and the gear seat body 501 is also installed on the machine tool workbench through the plurality of right side fixing waist-shaped holes 509 of the gear seat.

[0087] like Figure 8 As shown, a longitudinally penetrating square key installation groove 510 is also provided in the middle of the vertical bottom of the gear seat body 501 .

[0088] As a preferred solution of this embodiment, Fig.10 As shown, the tooth gauge 6 includes a cylindrical tooth gauge body 601, and an annular groove 602 is circumferentially provided on the tooth gauge body 601 near the longitudinal front end. The annular groove 602 fits with the tooth gauge bayonet 203. The tooth gauge 6 can move forward and backward in the longitudinal direction driven by the tooth gauge connecting rod 202.

[0089] like Fig.10 As shown, the longitudinal rear section of the gear gauge body 601 is installed in the gear gauge mounting hole 505, and the gear gauge body 601 can move forward and backward in the longitudinal direction relative to the gear gauge mounting hole 505. The longitudinal rear end of the gear gauge body 601 protrudes from the longitudinal rear side of the gear seat body 501.

[0090] like Fig.10 As shown, a tooth groove fitting surface 603 is also provided at the longitudinal rear end of the tooth gauge body 601 .

[0091] As a preferred solution of this embodiment, a pair of limit blocks 7 are provided with transversely penetrating rotating shaft installation grooves 701 in the middle of the adjacent surfaces, and the inner surfaces of the two rotating shaft installation grooves 701 form a rotating shaft fitting surface 702.

[0092] The vertical height of the limit block 7 is equal to the vertical width of the slide mounting groove 502, the horizontal thickness of the limit block 7 is equal to the horizontal depth of the limit block mounting groove 20103, and the longitudinal width of the limit block 7 is equal to the longitudinal length of the limit block mounting groove 20103.

[0093] As a preferred solution of this embodiment, Fig.12 As shown, the rotary shaft 8 includes an integrally arranged inner mounting shaft section 801 of the gear seat, an eccentric cam 802, an inner mounting shaft section 803 of the cover plate, and an outer knob shaft section 804 of the cover plate.

[0094] like Fig.12 As shown, the mounting shaft segment 801 in the gear seat, the mounting shaft segment 803 in the cover plate, and the knob shaft segment 804 outside the cover plate are coaxially arranged.

[0095] The mounting shaft section 801 in the gear holder is rotatably mounted on the gear holder body 501 in the transverse direction from right to left through the second mounting hole 20104 of the rotary shaft and the first mounting hole 503 of the rotary shaft.

[0096] The eccentric cam 802 can contact the rotary shaft contact surface 702 during the rotation process, so that the limit block 7 drives the slider 2 to reciprocate in the longitudinal direction.

[0097] The shaft section 803 installed in the cover plate can be rotatably installed in the cover plate 9.

[0098] like Figure 2 As shown, the cover plate outer knob shaft section 804 is arranged on the outside of the cover plate 9.

[0099] As a preferred solution of this embodiment, Fig.13 As shown, the cover plate 9 includes a cover plate body 901 , and a plurality of transversely penetrating cover plate fixing screw holes 902 are provided on the cover plate body 901 . The cover plate fixing screw holes 902 correspond to the cover plate installation screw holes 504 one by one.

[0100] like Fig.13 As shown, the cover body 901 is further provided with a third rotary shaft mounting hole 903 which runs transversely therethrough, and a cover inner mounting shaft section 803 is rotatably mounted in the third rotary shaft mounting hole 903 .

[0101] like Figure 2 As shown, the cover plate body 901 can be installed on the right lateral side of the gear holder body 501 through the cover plate fixing screw holes 902 .

[0102] In this embodiment, a square key 13 is disposed in the square key installation groove 510. Fig. 9 shown.

[0103] In this embodiment, the limiting blocks 7 are used in pairs.

[0104] In this embodiment, when the rotary shaft 8 is preloaded, it is ensured that the tooth gauge 6 is pressed against the indexing circle tooth groove 11 of a gear ring that has been processed on the intermediate shaft workpiece at the maximum stroke.

[0105] In this embodiment, after adjusting the horizontal and vertical positions of the anti-misalignment gauge probe 10, the first groove of the long keyway is processed; after the first groove is processed, the rotary shaft 8 is loosened, so that the gear gauge 6 and the anti-misalignment gauge probe 10 move forward synchronously in the longitudinal direction, that is, away from the intermediate shaft workpiece, and then the intermediate shaft workpiece is rotated so that the center of the gear gauge 6 coincides with the tooth width center of the dividing circle tooth groove 11, and the rotary shaft 8 is pre-tightened to process the second groove of the long keyway; repeat the operation to complete the overall processing of the long keyway.

[0106] In this embodiment, the middle part of the rotary shaft 8, i.e., the eccentric cam 802, is designed as an eccentric cam structure. When the rotary shaft 8 is pre-tightened, the cam principle is used to realize the function of pre-tightening and loosening the workpiece tooth groove; the circumferential rotation of the rotary shaft 8 drives a pair of limit blocks 7 to move forward and backward in the longitudinal direction, and the forward and backward movement of the limit blocks 7 in the longitudinal direction drives the slider 2 to move forward and backward in the longitudinal direction, and the forward and backward movement of the slider 2 in the longitudinal direction drives the gear gauge 6 to move forward and backward in the longitudinal direction, and the forward and backward movement of the gear gauge 6 in the longitudinal direction realizes the function of tightening and loosening the indexing circle tooth groove 11 of a gear ring that has been processed on the intermediate shaft workpiece;

[0107] At the same time, the forward and backward movement of the slider 2 in the longitudinal direction can also synchronously drive the anti-error extension rod 3 to move forward and backward in the longitudinal direction, and the forward and backward movement of the anti-error extension rod 3 in the longitudinal direction drives the anti-error tooth seat 4 to move forward and backward in the longitudinal direction, and the forward and backward movement of the anti-error tooth seat 4 in the longitudinal direction drives the anti-error gear gauge probe 10 to move forward and backward in the longitudinal direction, so that the longitudinal rear end of the anti-error gear gauge probe 10 is against the position of the long keyway 12 to be processed on the intermediate shaft workpiece to prevent misalignment of teeth.

[0108] The adjustment method of the device in this embodiment when actually used is as follows (since this fixture is used with a center, the adjustment method of the entire process of machining parts will be described):

[0109] Step 1: Move and fix the hydraulic tailstock on the machine tool worktable (i.e., the CNC vertical machining center worktable), clean the iron filings on the guide rails of the machine tool worktable, determine the position of the tailstock according to the axial length of the workpiece, and fix it.

[0110] Step 2: Check the coaxiality of the left and right centers of the machine tool worktable, and use the center inspection standard parts to confirm whether the double centers are coaxial. The deviation is required to be no more than 0.01mm within a range of 300mm.

[0111] Step three, adjust the vertical height of the gear seat 5 in the gear fixture (that is, adjust the vertical height of the gear gauge 6) and fix it; if the processed part is a helical tooth, the gear seat 5 needs to be adjusted according to the process so that the center of the tooth groove fitting surface 603 of the gear gauge 6 and the center of the left and right tops are located on the same horizontal plane; if the processed part is a straight tooth, under the premise of not interfering with the tool, the center of the tooth groove fitting surface 603 of the gear gauge 6 coincides with the center of the tooth width of the dividing circle tooth groove 11.

[0112] Step 4: adjust the front and rear positions of the gear gauge 6 in the gear fixture in the longitudinal direction and fix them, pre-tighten the rotating shaft 8, ensure that the gear gauge 6 is pressed against the dividing circle tooth groove 11 at the maximum longitudinal stroke, loosen the gear gauge 6 without moving the gear seat 5 of the gear fixture, move the gear seat 5 of the gear fixture as a whole toward the workpiece by 0.1 to 0.15 mm and fix the gear seat 5 of the gear fixture.

[0113] Step five, check the center height of the front and rear end faces of the gear gauge 6, so that the gear gauge 6 is placed horizontally, the requirement is not more than 0.01mm, and the deviation from the center height of a processed gear ring is not more than 0.02, that is, adjust the horizontal and vertical positions of the anti-misalignment gear gauge probe 10, and finally perform the long keyway processing.

Claims

1. A tooth alignment fixture for measuring the position of long keyways of shaft parts, characterized in that: The invention comprises a tooth alignment anti-misalignment mechanism (1), wherein the tooth alignment anti-misalignment mechanism (1) comprises a slider (2), wherein the slider (2) is mounted on a tooth alignment seat (5) and is capable of reciprocating in the longitudinal direction; a tooth alignment gauge (6) is also mounted on the tooth alignment seat (5), wherein the central axis of the tooth alignment gauge (6) is arranged along the longitudinal direction; The longitudinal rear end of the sliding block (2) is provided with an anti-error extension rod (3), and the anti-error extension rod (3) is arranged in the transverse direction; The tooth misalignment prevention mechanism (1) further comprises an anti-misalignment tooth seat (4), the anti-misalignment tooth seat (4) being mounted on the anti-misalignment extension rod (3), and an anti-misalignment tooth gauge probe (10) being arranged in the anti-misalignment tooth seat (4); the central axis of the anti-misalignment tooth gauge probe (10) being arranged along the longitudinal direction.

2. The tooth alignment fixture for measuring the position of long keyways of shaft parts as claimed in claim 1, characterized in that: The error-proofing extension rod (3) comprises an error-proofing extension rod body (301), a longitudinally through-going error-proofing tooth seat strip positioning hole (302) is provided on the error-proofing extension rod body (301) near the right end, an extension rod positioning block (303) is also integrated and horizontally arranged on the left end surface of the error-proofing extension rod body (301), and a plurality of extension rod fixing screw holes (304) are horizontally provided on the left end surface of the error-proofing extension rod body (301), and the plurality of extension rod fixing screw holes (304) are arranged on both sides of the extension rod positioning block (303).

3. The tooth alignment fixture for measuring the position of long keyways of shaft parts as claimed in claim 2, characterized in that: The anti-misalignment gear seat (4) comprises an anti-misalignment gear gauge probe positioning seat (401), and the longitudinal front end of the anti-misalignment gear gauge probe positioning seat (401) is also coaxially and integrally provided with an anti-misalignment gear gauge probe penetrating rod (402) and an anti-misalignment gear seat fixing seat (403); the width of the anti-misalignment gear seat fixing seat (403) is less than or equal to the width of the anti-misalignment gear seat strip positioning hole (302), and the length of the anti-misalignment gear seat fixing seat (403) is less than the length of the anti-misalignment gear seat strip positioning hole (302); the length of the anti-misalignment gear seat fixing seat (403) is greater than the width of the anti-misalignment gear seat strip positioning hole (302); The anti-misalignment gauge probe rod (402) is clamped in the anti-misalignment gear seat strip-shaped positioning hole (302); the anti-misalignment gauge probe positioning seat (401) is located at the longitudinal rear side of the anti-misalignment gear seat strip-shaped positioning hole (302); the anti-misalignment gear seat fixing seat (403) is located at the longitudinal front side of the anti-misalignment gear seat strip-shaped positioning hole (302); The anti-misalignment tooth seat fixing seat (403) is also provided with a plurality of longitudinally penetrating anti-misalignment tooth seat locking screw holes (404), and the anti-misalignment tooth seat (4) is mounted on the anti-misalignment extension rod body (301) through the cooperation of the anti-misalignment tooth seat locking screw holes (404) and the fastening bolts; The anti-misalignment gear seat (4) is also provided with a longitudinally through-going anti-misalignment gear gauge probe through hole (405), and the anti-misalignment gear gauge probe (10) is installed in the anti-misalignment gear gauge probe through hole (405); the side of the anti-misalignment gear gauge probe positioning seat (401) is also provided with an anti-misalignment gear gauge probe locking screw hole (40101), and the anti-misalignment gear gauge probe locking screw hole (40101) is provided with an anti-misalignment gear gauge probe locking bolt (40102), and the anti-misalignment gear gauge probe locking bolt (40102) can lock the anti-misalignment gear gauge probe (10).

4. The tooth alignment fixture for measuring the position of long keyways of shaft parts as claimed in claim 2, characterized in that: The sliding block (2) comprises a sliding plate (201), the longitudinal rear end of the sliding plate (201) is provided with an extension rod bayonet (20101) which is transversely penetrating and open at the longitudinal rear end, and the interior of the extension rod bayonet (20101) can be fitted with the outer surface of the extension rod positioning block (303); the longitudinal rear end of the sliding plate (201) is provided with a plurality of extension rod mounting screw holes (20102) which are transversely penetrating, and the extension rod mounting screw holes (20102) correspond to the extension rod fixing screw holes (304) one by one, and the error-proofing extension rod (3) is mounted to the extension rod mounting screw holes (20102) of the sliding plate (201) through the extension rod fixing screw holes (304); A vertically penetrating limit block installation groove (20103) is provided on the right side surface of the middle section of the slide plate (201), a pair of limit blocks (7) are also installed in the limit block installation groove (20103) in a mirror-symmetrical manner, and a second installation hole (20104) of the rotary shaft that horizontally penetrates the slide plate (201) is also provided at the bottom of the limit block installation groove (20103); The longitudinal front end of the slide plate (201) is also integrally and vertically provided with a tooth gauge connecting rod (202), the lateral right end of the tooth gauge connecting rod (202) is connected to the longitudinal front end of the slide plate (201), and the lateral left end of the tooth gauge connecting rod (202) is provided with a tooth gauge bayonet (203) which is longitudinally penetrating and open on the left side.

5. The tooth alignment fixture for measuring the position of long keyways of shaft parts as claimed in claim 4, characterized in that: The tooth seat (5) comprises a tooth seat body (501), a longitudinally penetrating slide plate installation groove (502) is provided on the right side surface of the tooth seat body (501), the vertical width of the slide plate installation groove (502) is equal to the vertical height of the slide plate (201), the horizontal depth of the slide plate installation groove (502) is equal to the horizontal width of the slide plate (201), the slide plate (201) is installed on the tooth seat body (501) through the slide plate installation groove (502), and the slide plate (201) can also move forward and backward in the longitudinal direction in the slide plate installation groove (502) relative to the tooth seat body (501); The gear holder body (501) is further provided with a first rotating shaft mounting hole (503) in the middle of the bottom of the slide plate mounting groove (502) in the horizontal direction, and a rotating shaft (8) is arranged in the first rotating shaft mounting hole (503). The gear holder body (501) is further provided with a plurality of cover plate mounting screw holes (504) in the horizontal direction on the vertical upper and lower sides of the slide plate mounting groove (502). A longitudinally through-going gear gauge mounting hole (505) is also provided on the front side of the gear seat body (501), a gear gauge (6) is arranged in the gear gauge mounting hole (505), the gear gauge mounting hole (505) and the first mounting hole (503) of the rotating shaft do not contact each other, and the central axis of the gear gauge mounting hole (505) and the central axis of the first mounting hole (503) of the rotating shaft are located on the same horizontal plane.

6. The tooth alignment fixture for measuring the position of long keyways of shaft parts as claimed in claim 5, characterized in that: The left side bottom of the gear seat body (501) is also integrally provided with a left side fixed boss (506) of the gear seat body, and a plurality of vertically through left side fixed waist-shaped holes (507) of the gear seat are opened on the left side fixed boss (506) of the gear seat body. The plurality of left side fixed waist-shaped holes (507) of the gear seat are evenly arranged along the longitudinal direction, and the gear seat body (501) is installed on the machine tool workbench through the plurality of left side fixed waist-shaped holes (507) of the gear seat; The right side bottom of the gear seat body (501) is also integrated with a right side fixing boss (508) of the gear seat body, and a plurality of vertically penetrating right side fixing waist-shaped holes (509) of the gear seat are opened on the right side fixing boss (508) of the gear seat body. The plurality of right side fixing waist-shaped holes (509) of the gear seat are evenly arranged in the longitudinal direction. The gear seat body (501) is also installed on the machine tool workbench through the plurality of right side fixing waist-shaped holes (509) of the gear seat; A longitudinally penetrating square key installation groove (510) is also provided in the middle of the vertical bottom of the gear seat body (501).

7. The tooth alignment fixture for measuring the position of long keyways of shaft parts as claimed in claim 5, characterized in that: The tooth gauge (6) comprises a cylindrical tooth gauge body (601), and an annular groove (602) is provided on the tooth gauge body (601) near the longitudinal front end along the circumferential direction, and the annular groove (602) and the tooth gauge bayonet (203) are in close contact, and the tooth gauge (6) can move forward and backward along the longitudinal direction under the drive of the tooth gauge connecting rod (202); The longitudinal rear section of the gear gauge body (601) is installed in the gear gauge mounting hole (505), the gear gauge body (601) can move forward and backward in the longitudinal direction relative to the gear gauge mounting hole (505), and the longitudinal rear end of the gear gauge body (601) protrudes from the longitudinal rear side surface of the gear seat body (501); The longitudinal rear end of the tooth gauge body (601) is also provided with a tooth groove fitting surface (603).

8. The tooth alignment fixture for measuring the position of long keyways of shaft parts as claimed in claim 5, characterized in that: A horizontally penetrating rotary shaft installation groove (701) is respectively provided in the middle of the adjacent sides of the pair of limit blocks (7), and the inner surfaces of the two rotary shaft installation grooves (701) form a rotary shaft fitting surface (702); The vertical height of the limit block (7) is equal to the vertical width of the slide mounting groove (502), the horizontal thickness of the limit block (7) is equal to the horizontal depth of the limit block mounting groove (20103), and the vertical width of the limit block (7) is equal to the vertical length of the limit block mounting groove (20103).

9. The tooth alignment fixture for measuring the position of long keyways of shaft parts as claimed in claim 8, characterized in that: The rotary shaft (8) comprises an integrally arranged inner mounting shaft section (801) of the gear seat, an eccentric cam (802), an inner mounting shaft section (803) of the cover plate, and an outer knob shaft section (804) of the cover plate; The mounting shaft section (801) inside the gear holder, the mounting shaft section (803) inside the cover plate, and the knob shaft section (804) outside the cover plate are coaxially arranged; The mounting shaft section (801) in the gear holder is rotatably mounted on the gear holder body (501) from right to left in the transverse direction through the second mounting hole (20104) of the rotary shaft and the first mounting hole (503) of the rotary shaft; The eccentric cam (802) can contact the rotary shaft contact surface (702) during the rotation process, so that the limit block (7) drives the slider (2) to reciprocate in the longitudinal direction; The cover plate internal mounting shaft section (803) is rotatably mounted inside the cover plate (9); The cover plate outer knob shaft section (804) is arranged on the outer side of the cover plate (9).

10. The tooth alignment fixture for measuring the position of long keyways of shaft parts as claimed in claim 9, characterized in that: The cover plate (9) comprises a cover plate body (901), and a plurality of transversely penetrating cover plate fixing screw holes (902) are provided on the cover plate body (901), and the cover plate fixing screw holes (902) correspond to the cover plate installation screw holes (504) one by one; The cover plate body (901) is also provided with a third rotary shaft mounting hole (903) which runs transversely therethrough, and a cover plate internal mounting shaft section (803) is rotatably mounted in the third rotary shaft mounting hole (903); The cover plate body (901) can be installed on the right lateral side of the gear holder body (501) through the cover plate fixing screw hole (902).

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