CN220971476U

CN220971476U - Bow-shaped shifting fork rod milling tool

Info

Publication number: CN220971476U
Application number: CN202323016217.5U
Authority: CN
Inventors: 丁辉; 孙正才
Original assignee: Jiangsu World Agricultural Machinery Co Ltd
Current assignee: Jiangsu World Agricultural Machinery Co Ltd
Priority date: 2023-11-08
Filing date: 2023-11-08
Publication date: 2024-05-17
Anticipated expiration: 2033-11-08

Abstract

The utility model relates to the field of shifting fork clamps and discloses an arc-shaped shifting fork rod milling tool which comprises a bottom plate, wherein mounting holes are respectively formed in the top surface of the bottom plate near the left end and the right end in a penetrating mode, a rotating plate is detachably arranged on the top surface of the bottom plate, a front baffle is fixed on the top surface of the rotating plate near the front side, a plurality of front V-shaped grooves are formed in the top surface of the front baffle, a rear baffle is fixed on the top surface of the rotating plate near the rear side, and a plurality of rear V-shaped grooves are formed in the top surface of the rear baffle. In the utility model, the tool is arranged to be of a structure capable of rotating at will, after the front end processing area is processed, the front end processing area can be quickly replaced to be the rear end processing area for feeding the tool again, and the front and rear processing areas are clamped and milled on the same tool at one time, so that the milling heights are consistent, a plurality of pieces of workpieces can be processed simultaneously, the operation is simple and convenient, the processing efficiency is improved, and the cost is reduced.

Description

Bow-shaped shifting fork rod milling tool

Technical Field

The utility model relates to the technical field of shifting fork clamps, in particular to a milling tool for an arched shifting fork rod.

Background

The shifting fork is a part on the automobile gearbox, is connected with the speed changing handle, is positioned at the lower end of the handle, and shifts the middle speed changing wheel to change the input or output speed ratio. The shifting fork is mainly used for clutch gear shifting, and when new shifting fork products of the automobile gearbox are manufactured on trial, a shifting fork workpiece is required to be fixed through a clamp to mill a milling groove on a horizontal milling machine. The arc-shaped shifting fork rod type parts require milling treatment of excircles at two ends of an arc shape, and milling heights are consistent. The general processing method comprises the following steps: because the part belongs to the special-shaped part, only the two-end finish machining excircle parts can be used for clamping.

According to the Chinese patent with publication number of CN217071597U, an adjustable shifting fork groove milling fixture relates to the technical field of shifting fork fixtures, and solves the problems that each existing shifting fork fixture can only fix a shifting fork with one shape for milling groove processing, and different shifting fork milling groove fixtures are required to be manufactured for processing the shifting fork in the research and development process of a shifting fork of a gearbox; the locking rod is rotatably connected to the inside of the fixed base, and the head limiting rod is inserted into the inside of the fixed base; the stop limiting rod is inserted into the fixing base, and the stop positioning block is inserted into the outer part of the stop limiting rod.

Therefore, the center pliers are adopted to clamp the outer circles at the two ends for machining, the clamping parts are short, the rest parts of the parts are suspended outside the center pliers, the outer circles are easy to clamp, and the machining is unstable. The existing processing method can only process one product at a time, and the processing efficiency is low. And two ends are respectively machined by secondary clamping, and the milling height has errors

In the above-mentioned scheme, can remove in the inside of head constant head tank through the head gag lever post to change the position of use through the locking lever, realize the centre gripping to the shifting fork pole, lead to it to appear following shortcoming: only a single fork rod can be clamped, and after one end of the fork rod is machined, the other end of the fork rod can be machined, so that the machining speed is influenced.

Disclosure of utility model

The utility model aims to provide an arc-shaped shifting fork rod milling tool, which aims to solve the problems that only a single shifting fork rod can be clamped, and the other end of the shifting fork rod can be machined only by secondary clamping after one end of the shifting fork rod is machined, so that the machining speed is influenced.

In order to achieve the above object, the present utility model adopts the following technical scheme: the utility model provides an arch shift fork pole mills frock, includes the bottom plate, the top surface of bottom plate is close to controlling both ends and runs through respectively and has offered the mounting hole, the top surface detachable of bottom plate is provided with the rotor plate, the top surface of rotor plate is close to the front side and is fixed with preceding baffle, the V-arrangement groove before a plurality of has been seted up to the top surface of preceding baffle, the top surface of rotor plate is close to the rear side and is fixed with the backplate, the V-arrangement groove after a plurality of has been seted up to the top surface of backplate, be fixed with a plurality of locating pin and screw sleeve on the top surface of rotor plate by the line of preceding back central point respectively, a plurality of locating pin and a plurality of screw sleeve crisscross and the interval setting respectively, screw sleeve's top surface detachable is provided with the latch segment, the rotation hole has been seted up in running through in the top surface center department of bottom plate, the bottom surface of rotor plate is provided with the rotation pin, the rotation pin with the rotation setting.

Preferably, the top surface of bottom plate is close to controlling both ends and has run through respectively and has offered the fastening screw, the fastening screw is located outside the rotation scope of rotor plate, the top surface of bottom plate is close to controlling both ends and is provided with the clamp plate respectively, the bottom surface one end of clamp plate with the top surface laminating of rotor plate, the bottom surface other end of clamp plate with the top surface laminating of bottom plate, waist hole has been seted up to the top surface of clamp plate, hold-down bolt has been inserted to the inside in waist hole, hold-down bolt's one end pass waist hole and with fastening screw threaded connection.

Preferably, the top surface of bottom plate is close to controlling both ends and has run through respectively and has offered the spacing pinhole, the top surface of rotor plate is close to controlling both ends and has run through respectively and has offered the locating hole, the inside slidable of locating hole inserts and has been equipped with the bolt, the one end of bolt runs through the locating hole extends to the inside of spacing pinhole, bolt, both sides the locating hole the screw sleeve the rotatory hole the locating pin is located same straight line.

Preferably, the top surfaces of the locking blocks are provided with locking holes, locking bolts are inserted into the locking holes, and one ends of the locking bolts penetrate through the locking holes and are in threaded connection with the threaded sleeves.

Preferably, the front baffle plate and the rear baffle plate are parallel to each other, the front V-shaped grooves and the rear V-shaped grooves are in one-to-one correspondence, and the transverse centers of the front V-shaped grooves and the rear V-shaped grooves are positioned at the gap center between the positioning pin and the threaded sleeve.

Preferably, the distance between the rear end surface of the front baffle and the center connecting line between the two positioning holes is equal to the distance from the center of the bow-shaped part of the fork rod to be processed to the front end of the bow-shaped part of the fork rod.

Compared with the prior art, the milling tool for the arched shifting fork rod has the following beneficial effects:

1. In use, the bottom plate can be installed on the milling machine by placing bolts into the mounting holes, then the rotating plate is rotated, the rotating plate is enabled to rotate around the rotating pins, then the rotating plate is aligned with the bottom plate, then the two pressing plates are respectively attached to the top surface of the rotating plate and the top surface of the bottom plate, one end of each pressing bolt penetrates through the waist holes and is in threaded connection with the fastening screw holes, so that the rotating plate is fixed, then the fork rod is vertically placed on the rotating plate upwards through the openings of the arched parts, the front end and the rear end of the fork rod are respectively placed in the front V-shaped groove and the rear V-shaped groove, the arched parts of the fork rods are clamped between the positioning pins and the threaded sleeves, the fork rod is pushed forward again, the front ends of the arched parts of the fork rods are attached to the rear sides of the front baffle plates, then the locking blocks are installed with the threaded sleeves, the fork rods are pressed and fixed, at the moment, the milling machine is started, the milling cutter is operated, the milling process of the front end of the whole row of the fork rod is sequentially completed from right to left, the milling process is completed, the pressing plates are rotated, the front end of the fork rod is placed in the front end of the milling machine is reset, the milling process is completed, the milling process of the milling cutter is completed, and the milling process of the milling cutter is completed from the left end of the fork rod is started, and the front end is completed. By adopting the structure that the tool is arranged to be capable of rotating at will, after the front end processing area is processed, the front end processing area can be quickly replaced to be the rear end processing area for feeding again, and as the front and rear processing areas are clamped and milled on the same tool at one time, the milling heights are consistent, a plurality of pieces of workpieces can be processed simultaneously, the operation is simple and convenient, the processing efficiency is improved, and the cost is reduced;

2. In use, one end of the bolt penetrates through the positioning hole and extends to the inside of the limit pin hole, so that workers can be helped to align and position the bottom plate and the rotating plate quickly, the replacement speed of front and rear working areas is increased, the machining speed is further increased, the workers can conveniently disassemble and assemble the fork pulling rod by adopting the locking bolt to be in threaded connection with the threaded sleeve, the front V-shaped groove is parallel to the rear V-shaped groove and corresponds to the rear V-shaped groove in position, and the transverse centers of the front V-shaped groove and the rear V-shaped groove are located at the gap center between the positioning pin and the threaded sleeve, so that after the fork pulling rod is installed, the arc-shaped part of the fork pulling rod is exactly clamped between the positioning pin and the threaded sleeve and is limited.

Drawings

Fig. 1 is a perspective view of an embodiment.

Fig. 2 is a perspective view of an embodiment of a lock block.

Fig. 3 is a perspective view of an embodiment at a base plate.

Fig. 4 is a schematic front view of a rotary plate according to an embodiment.

Fig. 5 is a perspective view of an embodiment of a dowel pin, threaded sleeve.

In the figure: 1. a bottom plate; 101. a mounting hole; 102. a rotation hole; 103. limiting pin holes; 104. fastening the screw hole; 2. a rotating plate; 201. positioning holes; 3. a rotation pin; 4. a front baffle; 401. a front V-shaped groove; 5. a rear baffle; 501. a rear V-groove; 6. a positioning pin; 7. a threaded sleeve; 8. a locking block; 801. a locking hole; 9. a locking bolt; 10. a plug pin; 11. a pressing plate; 1101. waist holes; 12. and (5) pressing the bolt.

Detailed Description

The preferred embodiments of the present utility model will be described in detail with reference to the accompanying drawings.

As shown in fig. 1-5, an arcuate shifting fork milling tool comprises a bottom plate 1, mounting holes 101 are respectively and penetratingly formed in the left and right ends of the top surface of the bottom plate 1, a rotary plate 2 is detachably arranged on the top surface of the bottom plate 1, a front baffle 4 is fixed on the front side of the top surface of the rotary plate 2, a plurality of front V-shaped grooves 401 are formed in the top surface of the front baffle 4, a rear baffle 5 is fixed on the rear side of the top surface of the rotary plate 2, a plurality of rear V-shaped grooves 501 are formed in the top surface of the rear baffle 5, a plurality of locating pins 6 and threaded sleeves 7 are respectively fixed on a connecting line from front to rear center points of the top surface of the rotary plate 2, the locating pins 6 and the threaded sleeves 7 are respectively staggered and arranged at intervals, the detachable latch segment 8 that is provided with in top surface of screw sleeve 7, the top surface center department of bottom plate 1 runs through and has offered rotatory hole 102, the bottom surface of rotor plate 2 is provided with rotatory round pin 3, rotatory round pin 3 rotates with rotatory hole 102 and sets up, the top surface of bottom plate 1 is close to controlling both ends and runs through respectively and has offered fastening screw 104, fastening screw 104 is located the rotation scope of rotor plate 2 outward, both ends are provided with clamp plate 11 respectively about the top surface of bottom plate 1 is close to, clamp plate 11's bottom surface one end and rotor plate 2's top surface laminating, clamp plate 11's bottom surface other end and bottom plate 1's top surface laminating, waist hole 1101 has been seted up to clamp bolt 12 is inserted to the inside of waist hole 1101, clamp bolt 12's one end passes waist hole 1101 and with fastening screw 104 threaded connection.

In use, the bottom plate 1 can be mounted on a milling machine by inserting bolts into the mounting holes 101, then rotating the rotating plate 2, so that the rotating plate 2 rotates around the rotating pin 3, then aligning the rotating plate 2 with the bottom plate 1, then attaching two pressing plates 11 to the top surface of the rotating plate 2 and the top surface of the bottom plate 1 respectively, penetrating one end of the compression bolt 12 through the waist hole 1101 and being in threaded connection with the fastening screw hole 104, thereby fixing the rotating plate 2, then placing the fork pulling rod vertically upwards on the rotating plate 2 with an opening at the arched position, placing the front end and the rear end of the fork pulling rod in the front V-shaped groove 401 and the rear V-shaped groove 501 respectively, clamping the arched positions of the fork pulling rods between the positioning pin 6 and the threaded sleeve 7, pushing the fork pulling rod forwards again, so that the front end of the arched part of the fork pulling rod is attached to the rear side of the front baffle plate 4, then mounting the locking block 8 and the threaded sleeve 7, and compressing and fixing the fork pulling rod, at this time, starting the milling machine, and sequentially completing the milling process of the front end region of the fork pulling rod from right to left. After the machining is finished, the milling cutter is reset, the pressing plate 11 is detached, the rotating plate 2 is rotated for one hundred and eighty degrees and is aligned with the bottom plate 1, the pressing plate 11 is installed again, the milling machine can be started again, the milling cutter operates, and the milling procedure of the machining area of the rear end of the whole row of fork pulling rods is finished sequentially from right to left. By adopting the structure that the tool can be set to be rotated at will, after the front end processing area is processed, the front end processing area can be quickly replaced to be a rear end processing area for feeding, and because the front end processing area and the rear end processing area are clamped and milled on the same tool at one time, the milling heights are consistent, a plurality of pieces of workpieces can be processed simultaneously, the operation is simple and convenient, the processing efficiency is improved, and the cost is reduced.

As shown in fig. 2-5, the top surface of the bottom plate 1 is near the left and right ends and is respectively penetrated and provided with a limit pin hole 103, the top surface of the rotating plate 2 is near the left and right ends and is respectively penetrated and provided with a positioning hole 201, a bolt 10 is inserted and arranged in the positioning hole 201 in a sliding manner, one end of the bolt 10 penetrates through the positioning hole 201 and extends to the inside of the limit pin hole 103, the positioning holes 201, the threaded sleeves 7, the rotating holes 102 and the positioning pins 6 on two sides of the bolt 10 are positioned on the same straight line, the top surfaces of the locking blocks 8 are respectively provided with a locking hole 801, locking bolts 9 are inserted and arranged in the locking holes 801, one ends of the locking bolts 9 respectively penetrate through the locking holes 801 and are in threaded connection with the threaded sleeves 7, the front baffle plate 4 and the rear baffle plate 5 are parallel to each other, the front V-shaped groove 401 corresponds to the rear V-shaped groove 501 in a one-to-one mode, the transverse center of the front V-shaped groove 401 and the rear V-shaped groove 501 is positioned at the center of the gap between the positioning pin 6 and the threaded sleeve 7, and the center connecting line distance between the rear end surface of the front baffle plate 4 and the two positioning holes 201 is equal to the distance from the center of the bow-shaped position of the bow-shaped fork rod to be processed to the front end of the fork rod.

In use, one end of the bolt 10 penetrates through the positioning hole 201 and extends into the limiting pin hole 103, so that a worker can be helped to align and position the bottom plate 1 and the rotating plate 2 quickly, the replacement speed of front and rear working areas is increased, and the processing speed is further increased. Through adopting locking bolt 9 and threaded sleeve 7 threaded connection, the staff's of being convenient for dismouting pulls out the fork arm. By arranging the front V-shaped groove 401 and the rear V-shaped groove 501 parallel and corresponding in position, and the transverse centers of the front V-shaped groove 401 and the rear V-shaped groove 501 are positioned at the gap center between the positioning pin 6 and the threaded sleeve 7, when the shifting fork rod is installed, the arc-shaped part of the shifting fork rod is just clamped between the positioning pin 6 and the threaded sleeve 7 and limited. Through setting up the center line distance between the rear end face of preceding baffle 4 and two locating holes 201 equal to the distance of the bow position center of fork arm to the bow position front end of fork arm, can guarantee when the front end of the bow portion of fork arm is laminated with the rear side of preceding baffle 4, the bow portion center department of fork arm is pressed by retaining block 8 very and is locked, avoids the fork arm to take place the side-to-side beat in the course of working, improves the stability of processing, ensures machining precision.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art should be able to apply equivalents and modifications to the technical solution and the inventive concept thereof within the scope of the present utility model.

Claims

1. The utility model provides an arch shift fork pole mills frock, includes bottom plate (1), its characterized in that, the top surface of bottom plate (1) is close to controlling both ends and runs through respectively and has offered mounting hole (101), the top surface detachable of bottom plate (1) is provided with rotor plate (2), the top surface of rotor plate (2) is close to the front side and is fixed with preceding baffle (4), V-arrangement groove (401) before a plurality of have been seted up to the top surface of preceding baffle (4), the top surface of rotor plate (2) is close to the rear side and is fixed with backplate (5), V-arrangement groove (501) after a plurality of have been seted up to the top surface of backplate (5), be fixed with a plurality of locating pin (6) and screw sleeve (7) on the top surface of rotor plate (2) by preceding the line of back central point respectively, a plurality of locating pin (6) and a plurality of screw sleeve (7) are crisscross and the interval setting respectively, the top surface detachable of screw sleeve (7) is provided with latch segment (8), rotatory hole (102) have been seted up in running through in the top surface center department of bottom plate (1), bottom surface (2) is provided with rotatory pin (3).

2. The arcuate shift rail milling tool of claim 1, wherein: the utility model discloses a clamp device for fixing a rotary plate, including bottom plate (1), clamp bolt (1101) are offered in the top surface of bottom plate (1), the top surface of bottom plate (1) is close to controlling both ends and has run through respectively and has offered fastening screw (104), fastening screw (104) are located outside the rotation scope of rotor plate (2), the top surface of bottom plate (1) is close to controlling both ends and is provided with clamp plate (11) respectively, the bottom surface one end of clamp plate (11) with the top surface laminating of rotor plate (2), the bottom surface other end of clamp plate (11) with the top surface laminating of bottom plate (1), waist hole (1101) have been offered to the top surface of clamp plate (11), the inside of waist hole (1101) is inserted and is had clamp bolt (12), the one end of clamp bolt (12) passes waist hole (1101) and with fastening screw (104) threaded connection.

3. The arcuate shift rail milling tool of claim 2, wherein: the top surface of bottom plate (1) is close to controlling both ends and has run through respectively and has offered spacing pinhole (103), the top surface of rotor plate (2) is close to controlling both ends and has run through respectively and has offered locating hole (201), the inside slidable of locating hole (201) inserts and has had bolt (10), the one end of bolt (10) runs through locating hole (201) and extends to the inside of spacing pinhole (103), bolt (10), spacing pinhole (103), both sides locating hole (201) threaded sleeve (7) rotatory hole (102) locating pin (6) are located same straight line.

4. A tool for milling an arcuate shift rail according to claim 3, wherein: locking holes (801) are formed in the top surfaces of the locking blocks (8), locking bolts (9) are inserted into the locking holes (801), and one ends of the locking bolts (9) penetrate through the locking holes (801) and are in threaded connection with the threaded sleeves (7).

5. The arcuate shift rail milling tool of claim 4, wherein: the front baffle plate (4) and the rear baffle plate (5) are parallel to each other, the front V-shaped grooves (401) and the rear V-shaped grooves (501) are in one-to-one correspondence, and the transverse centers of the front V-shaped grooves (401) and the rear V-shaped grooves (501) are positioned at the gap centers between the positioning pins (6) and the threaded sleeves (7).

6. The arcuate shift rail milling tool of claim 5, wherein: the distance between the rear end surface of the front baffle plate (4) and the center connecting line between the two positioning holes (201) is equal to the distance from the center of the arched part of the shifting fork rod to be processed to the front end of the arched part of the shifting fork rod.