CN216359561U

CN216359561U - Fixture for machining internal gear of starting motor

Info

Publication number: CN216359561U
Application number: CN202122520277.5U
Authority: CN
Inventors: 邹筱翠
Original assignee: Chongqing Aihua Electrical Co ltd
Current assignee: Chongqing Aihua Electrical Co ltd
Priority date: 2021-10-20
Filing date: 2021-10-20
Publication date: 2022-04-22
Anticipated expiration: 2031-10-20

Abstract

The utility model relates to the field of gear machining, in particular to a tool clamp for machining a gear in a starting motor, which comprises a support base, two clamping templates, two slide driving mechanisms and two quick assembling and disassembling mechanisms, wherein each quick assembling and disassembling mechanism comprises a positioning part and an ejection part, each slide driving mechanism comprises two supporting rods, the two clamping templates are arranged between the two supporting rods in a mirror image mode, each positioning part comprises a connecting piece and a connecting plate, one surface, far away from the corresponding supporting rod, of each connecting piece is provided with a socket, the end surface of each connecting plate is provided with a plurality of positioning tooth blocks, the middle parts of every two adjacent positioning tooth blocks are provided with abutting tooth blocks, and the inner wall of each socket is provided with a contraction groove for accommodating the abutting tooth blocks. According to the utility model, the clamping template is greatly convenient to mount and dismount through the quick dismounting mechanism, the mounting and dismounting steps of operators are simplified, and the working efficiency is improved.

Description

Fixture for machining internal gear of starting motor

Technical Field

The utility model relates to the field of gear machining, in particular to a tool clamp for machining an internal gear of a starting motor.

Background

The gear is a mechanical element with a rim provided with gears which are continuously engaged to transmit motion and power, the gear and gear products thereof are important basic parts of mechanical equipment, and the main transmission parts of most mechanical complete equipment are in gear transmission.

Because the size of the required work piece of gear machining is not of uniform size, so in the in-service use in-process, need change the centre gripping template of corresponding size according to the size of the required work piece of processing, among the prior art, it is fixed to connect through the bolt mostly between the drive arrangement of centre gripping template and anchor clamps, though can guarantee the stability of centre gripping template in the clamping process of work piece, but when actually changing or installing the centre gripping template, operating personnel need to twist the bolt with the help of extra extracting tool with a lot of ground and just can accomplish the dismantlement and the installation operation to the centre gripping template, so the operation process is very hard, does not have the convenience, influence the efficiency of actual processing operation.

SUMMERY OF THE UTILITY MODEL

Based on the defects in the prior art mentioned in the background art, the utility model provides the tool clamp for machining the gear in the starting motor.

The utility model overcomes the technical problems by adopting the following technical scheme, and specifically comprises the following steps:

the tool clamp for machining the gear in the starting motor comprises a supporting base, a clamping template, a driving sliding mechanism and a quick assembling and disassembling mechanism, wherein the clamping template is used for clamping a workpiece;

the quick disassembling and assembling mechanism comprises a positioning component for clamping and fixing the clamping template and an ejection component for improving the disassembling efficiency of the clamping template;

the sliding driving mechanism comprises two supporting rods which are vertically and slidably arranged on the left side and the right side of the top surface of the supporting base, the number of the clamping templates is two, and the two clamping templates are arranged between the two supporting rods in a mirror image manner;

the utility model discloses a supporting rack for the building machinery, including the bracing piece, the locating part including set up perpendicularly in connecting piece on the bracing piece side with set up in connecting plate in the centre gripping template periphery, the connecting piece is kept away from be provided with in the one side of bracing piece and be used for the socket that the connecting plate penetrated, be provided with a plurality of location tooth piece on the terminal surface of connecting plate, wherein adjacent two the middle part of location tooth piece is provided with the conflict tooth piece, be provided with on the inner wall of socket and be used for accomodating the shrink groove of conflict tooth piece, the vertical telescopic link that is provided with in inside in shrink groove, the one end of telescopic link penetrates the inside of socket and with the conflict tooth piece links to each other.

As a further scheme of the utility model: the positioning tooth block and the abutting tooth block are both in a right-angle trapezoidal shape, and the inclined surface of one of the positioning tooth blocks and the inclined surface end of the abutting tooth block are abutted against each other.

As a still further scheme of the utility model: the inner wall of the connecting piece is provided with a buffer cavity which is positioned on the same longitudinal surface with the shrinkage groove, the other end of the telescopic rod penetrates through the buffer cavity and extends to the outer side of the connecting piece and is connected with a pull ring, the buffer cavity is positioned in the inner cavity of the buffer cavity, a buffer spring is arranged on the rod body of the telescopic rod, one end of the buffer spring is connected with the rod body of the telescopic rod, and the other end of the buffer spring is connected with the inner wall of the buffer cavity.

As a still further scheme of the utility model: the ejection part comprises a plurality of compression barrels vertically arranged on the inner wall of one side of the connecting plate opposite to the socket and a bearing pressure plate vertically arranged in the socket in a sliding manner, the bearing pressure plate is positioned between the compression barrels and the connecting plate, the compression barrels are cylindrical barrels with one open ends, a plurality of compression rods are vertically arranged on the side faces of the bearing pressure plate, and the tail ends of the compression rods penetrate into the inner cavity of the compression barrels and are connected with a limiting plate.

As a still further scheme of the utility model: the inner wall of the open end of the bearing pressure plate is provided with a positioning ring, the positioning ring is arranged on the rod body of the compression rod, and the bearing pressure plate is right opposite to the side wall of the limiting plate and is provided with a compression spring for ejecting the compression rod.

As a still further scheme of the utility model: the driving and sliding mechanism further comprises a sliding seam transversely arranged on the top surface of the supporting base, a driving screw rod horizontally arranged in the sliding seam, and a driving screw sleeve in threaded connection with the two ends of the rod body of the driving screw rod, wherein the two ends of the driving screw rod are connected with the inner wall of the sliding seam through bearings, one end of the driving screw rod penetrates out of the supporting base and is connected with a driving motor used for driving the driving screw rod to rotate, the driving motor is connected with the supporting base through a support, and the supporting rod penetrates into the sliding seam and is connected with the driving screw sleeve.

After adopting the structure, compared with the prior art, the utility model has the following advantages: through the quick assembling and disassembling mechanism, when the clamping template is installed, an operator only needs to insert the connecting plate in the quick assembling and disassembling mechanism into the socket, when the connecting plate extends to a certain position in the socket, the contact tooth block can perform contact operation on the connecting plate, thereby ensuring the stability of the connecting plate in the socket and quickly realizing the installation operation of the clamping template, and similarly when the clamping template is used and needs to be disassembled and replaced, the operator can quickly release the fixing effect of the connecting plate by simply pulling the abutting tooth block, so as to be convenient for the disassembly of the clamping template, this design need not among the conventional art when installation and dismantlement centre gripping template, screws the bolt with the help of extra operation instrument complicatedly, just can realize the operation effect, greatly makes the installation and the dismantlement operation of centre gripping template convenient to make concrete operating procedure obtain simplifying.

Drawings

Fig. 1 is a schematic front view of the structure of the present invention.

Fig. 2 is a schematic view of the internal perspective structure of the quick-release mechanism of the present invention.

Fig. 3 is a schematic sectional front view of the quick-release mechanism of the present invention.

Fig. 4 is an enlarged view of the utility model at a in fig. 3.

Fig. 5 is an enlarged view of the utility model at B in fig. 3.

In the figure: 1. a support base; 2. a slide driving mechanism; 3. clamping the template; 4. a quick disassembly and assembly mechanism;

201. sliding seams; 202. driving the screw rod; 203. a drive motor; 204. driving the threaded sleeve; 205. a support bar;

41. a positioning member; 42. an ejection member;

410. a connecting member; 411. a socket; 412. a connecting plate; 413. positioning a tooth block; 414. a contact tooth block; 415. a telescopic rod; 416. a pull ring; 417. a contraction groove; 418. a buffer chamber; 419. a buffer spring;

420. a force bearing pressing plate; 421. a feeding cylinder; 422. a pressure receiving rod; 423. a limiting plate; 424. a positioning ring; 425. compressing the spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, in the embodiment of the present invention, a tooling fixture for machining an internal gear of a starting motor includes a supporting base 1, a clamping template 3 for clamping a workpiece, and a driving and sliding mechanism 2 for driving the clamping template 3 to move, where the driving and sliding mechanism 2 includes a sliding slot 201 transversely disposed on a top surface of the supporting base 1, a driving screw 202 horizontally disposed in the sliding slot 201, two supporting rods 205 vertically disposed on left and right sides of the top surface of the supporting base 1, and a driving screw 204 threadedly connected to two ends of a rod body of the driving screw 202, two ends of the driving screw 202 are connected to an inner wall of the sliding slot 201 through a bearing, one end of the driving screw 202 penetrates through the supporting base 1 and is connected to a driving motor 203 for driving the driving screw 202 to rotate, the driving motor 203 is connected to the supporting base 1 through a bracket, the supporting rod 205 is vertically disposed on a body of the driving screw 204, the supporting rods 205 penetrate through the sliding slot 201 and are connected with the driving threaded sleeve 204, two clamping templates 3 are arranged, and the two clamping templates 3 are arranged between the two supporting rods 205 in a mirror image manner;

when the device is used for gear machining of a workpiece to be machined, an operator can select clamping templates 3 with corresponding specifications according to the size of the gear to be machined, the workpiece is placed between the two clamping templates 3, then the external power supply of the driving motor 203 is connected with the driving motor 203, the output end of the driving motor 203 rapidly drives the driving screw rod 202 to rotate in the sliding seam 201 after being connected with the power supply, the driving screw rod 202 is matched with the driving screw sleeve 204 through a threaded structure, the driving screw sleeve 204 can rapidly move close to each other on the rod body of the driving screw rod 202, the clamping templates 3 are driven to synchronously move through the supporting rod 205 until the clamping templates 3 are contacted with the periphery of the workpiece, and the two clamping templates 3 are matched with each other to provide effective clamping force for the workpiece.

As above, because the size of the required processing work piece is not uniform, so in the in-service use process, need change the centre gripping template 3 of corresponding size according to the size of the required processing work piece, among the prior art, it is fixed to connect through the bolt mostly between centre gripping template 3 and bracing piece 205, though can guarantee its stability in centre gripping template 3 use, but when actually changing or installing centre gripping template 3, operating personnel need to twist the bolt with the help of extra extracting tool more and can accomplish the dismantlement and the installation operation to centre gripping template 3, so operation process is very hard, does not have the convenience, influence the efficiency of actual processing operation.

In view of this, as shown in fig. 1, in one embodiment of the present invention, a quick-attachment and detachment mechanism 4 for quickly attaching the holding jig 3 is provided between the holding jig 3 and the support bar 205.

Through quick assembly disassembly mechanism 4, greatly facilitated the installation and the dismantlement of centre gripping template 3, simplified operating personnel's installation and dismantlement step, improved work efficiency.

Specifically, as shown in fig. 2, 3 and 4, in an embodiment of the present invention, the quick-assembly and disassembly mechanism 4 includes a positioning member 41 for clamping and fixing the holding form 3, the positioning member 41 includes a connecting member 410 vertically disposed on a side surface of the supporting rod 205 and a connecting plate 412 disposed on an outer periphery of the holding form 3, a socket 411 for inserting the connecting plate 412 is disposed on a surface of the connecting member 410 away from the supporting rod 205, a plurality of positioning tooth blocks 413 are disposed on an end surface of the connecting plate 412, wherein an abutting tooth block 414 is disposed in a middle portion of two adjacent positioning tooth blocks 413, the positioning tooth blocks 413 and the abutting tooth blocks 414 are in a right trapezoid shape, an inclined surface of one positioning tooth block 413 and an inclined surface end of the abutting tooth block 414 abut against each other, a contraction groove 417 for receiving the abutting tooth block 414 is disposed on an inner wall of the socket 411, and a telescopic rod 415 is vertically disposed inside the contraction groove 417, one end of the telescopic rod 415 penetrates into the socket 411 and is connected with the abutting tooth block 414, a buffer cavity 418 which is positioned on the same longitudinal plane with the contraction groove 417 is arranged in the inner wall of the connecting piece 410, the other end of the telescopic rod 415 penetrates through the buffer cavity 418 and extends to the outer side of the connecting piece 410 and is connected with a pull ring 416, a buffer spring 419 is arranged on the rod body of the telescopic rod 415 in the inner cavity of the buffer cavity 418, one end of the buffer spring 419 is connected with the rod body of the telescopic rod 415, and the other end of the buffer spring 419 is connected with the inner wall of the buffer cavity 418.

When an operator installs the clamping template 3, the connecting plate 412 needs to be inserted into the socket 411, in the process that the connecting plate 412 continuously extends in the socket 411, the abutting tooth block 414 intermittently abuts against the positioning tooth block 413 and drives the telescopic rod 415 to make telescopic motion in the inner cavity of the buffer cavity 418 so as to drive the rod body of the telescopic rod 415 to pull the buffer spring 419 and drive the buffer spring 419 to deform, when the connecting plate 412 moves to a specified position in the inner cavity of the socket 411, the telescopic rod 415 can automatically perform reset motion under the action of resilience force of the buffer spring 419 and push the abutting tooth block 414 to quickly reset and extend to the middle parts of two positioning tooth blocks 413, so that the connecting plate 412 is quickly fixed and the clamping template 3 is installed;

on the contrary, in the same way, when the clamping template 3 needs to be disassembled and replaced after being used, the operator only simply pulls the pull ring 416, so that the telescopic rod 415 is forced to drive the abutting tooth block 414 to contract into the contraction groove 417, so as to release the fixing effect on the connecting plate 412, and the operator can conveniently pull the clamping template 3 to complete the disassembly of the clamping template 3;

in conclusion, the design does not need to use an additional operation tool to complexly screw the bolt when the clamping template 3 is installed and disassembled in the traditional technology, so that the operation effect can be realized, the installation and the disassembly operation of the clamping template 3 are greatly facilitated, and the specific operation steps are simplified.

However, in the above embodiment, when the operator detaches the clamping template 3, the operator needs to pull the pull ring 416 with one hand to contact the fixing operation of the connecting plate 412, and pull the clamping template 3 with the other hand to pull the connecting plate 412 out of the socket 411, so as to detach the clamping template 3, and thus, in the detaching operation of the clamping template 3, the operator needs to use both hands to complete the operation, so that the operator may feel tired in the hands during the frequent detaching operation, which affects the implementation efficiency.

In order to solve the above-mentioned problems, as shown in fig. 2, 3 and 5, in another embodiment of the present invention, quick assembly disassembly mechanism 4 has still included the part 42 of launching that is used for improving the dismantlement efficiency, launch part 42 and include a plurality of confession that set up perpendicularly on socket 411 just to the inner wall of connecting plate 412 and compress section of thick bamboo 421 and vertical slip set up in the inside bearing clamp plate 420 of socket 411, bearing clamp plate 420 is located confession between compressing section of thick bamboo 421 and connecting plate 412, confession compressing section of thick bamboo 421 is the open cylinder of one end, be provided with a plurality of compression pole 422 on the side of bearing clamp plate 420 perpendicularly, the end of compression pole 422 penetrates in the inner chamber of confession compressing section of thick bamboo 421 and is connected with limiting plate 423, be provided with the holding ring 424 on the inner wall of bearing clamp plate 420 open end, the holding ring 424 is located on the pole body of compression pole 422, bearing clamp plate 420 just is provided with the pressure spring 425 that is used for launching compression pole 422 on the lateral wall of limiting plate 423.

When the connecting plate 412 constantly at the inside in-process that extends of socket 411, the connecting plate 412 can take place to contradict with bearing clamp plate 420, and then bearing clamp plate 420 is after the atress, but rapid drive receives the pole 422 and contracts in the inner chamber that supplies to contract section of thick bamboo 421, and compress the pressure spring 425 in the inner chamber of bearing clamp plate 420, cause pressure spring 425 to take place deformation, therefore, when connecting plate 412 is relieved fixed needs and is dismantled, then receive pole 422 can be under pressure spring 425 resilience power, rapid drive bearing clamp plate 420 makes the removal that resets, and in the initiative promotion connecting plate 412 shifts out socket 411, and then need not both hands operation and can realize dismantling, the convenience of the device has further been strengthened.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof.

Claims

1. Frock clamp for gear machining in starter motor, its characterized in that: the clamping device comprises a supporting base (1), a clamping template (3) used for clamping a workpiece, a driving sliding mechanism (2) used for driving the clamping template (3) to move, and a quick assembling and disassembling mechanism (4) used for quickly installing the clamping template (3);

the quick disassembling and assembling mechanism (4) comprises a positioning component (41) used for clamping and fixing the clamping template (3) and an ejection component (42) used for improving the disassembling efficiency of the clamping template (3);

the sliding driving mechanism (2) comprises two supporting rods (205) which are vertically arranged on the left side and the right side of the top surface of the supporting base (1) in a sliding mode, the number of the clamping templates (3) is two, and the two clamping templates (3) are arranged between the two supporting rods (205) in a mirror image mode;

locating part (41) including set up perpendicularly in connecting piece (410) on bracing piece (205) side with set up in connecting plate (412) on centre gripping template (3) periphery, connecting piece (410) are kept away from be provided with on the one side of bracing piece (205) and are used for socket (411) that the connecting plate (412) penetrated, be provided with a plurality of location tooth piece (413) on the terminal surface of connecting plate (412), wherein adjacent two the middle part of location tooth piece (413) is provided with conflict tooth piece (414), be provided with on the inner wall of socket (411) and be used for accomodating shrink groove (417) of conflict tooth piece (414), the inside vertical telescopic link (415) that is provided with of shrink groove (417), the one end of telescopic link (415) penetrates the inside of socket (411) and with conflict tooth piece (414) link to each other.

2. The tool clamp for machining the gear in the starting motor is characterized in that: the positioning tooth block (413) and the interference tooth block (414) are both in a right-angle trapezoid shape, and the inclined surface of one of the positioning tooth blocks (413) and the inclined surface end of the interference tooth block (414) are mutually interfered.

3. The tool clamp for machining the gear in the starting motor is characterized in that: a buffer cavity (418) which is located on the same longitudinal plane with the contraction groove (417) is arranged in the inner wall of the connecting piece (410), the other end of the expansion link (415) penetrates through the buffer cavity (418) and extends to the outer side of the connecting piece (410) and is connected with a pull ring (416), a buffer spring (419) is arranged on the rod body of the expansion link (415) in the inner cavity of the buffer cavity (418), one end of the buffer spring (419) is connected with the rod body of the expansion link (415), and the other end of the buffer spring (419) is connected with the inner wall of the buffer cavity (418).

4. The tool clamp for machining the gear in the starting motor is characterized in that: the ejection part (42) comprises a plurality of compression barrels (421) vertically arranged on the inner wall of one side of the connecting plate (412) opposite to the socket (411) and a force bearing pressing plate (420) vertically arranged in the socket (411) in a sliding manner, the force bearing pressing plate (420) is positioned between the compression barrels (421) and the connecting plate (412), the compression barrels (421) are cylindrical barrels with one open ends, a plurality of compression rods (422) are vertically arranged on the side faces of the force bearing pressing plate (420), and the tail ends of the compression rods (422) penetrate into the inner cavity of the compression barrels (421) and are connected with a limiting plate (423).

5. The tool clamp for machining the gear in the starting motor is characterized in that: be provided with holding ring (424) on the inner wall of bearing clamp plate (420) opening end, holding ring (424) ring is located on the pole body of compression pole (422), bearing clamp plate (420) are just right be provided with on the lateral wall of limiting plate (423) and be used for ejecting compression spring (425) of compression pole (422).

6. The tool clamp for machining the gear in the starting motor is characterized in that: the driving sliding mechanism (2) further comprises a sliding seam (201) transversely arranged on the top surface of the supporting base (1), a driving screw rod (202) horizontally arranged in the sliding seam (201) and driving threaded sleeves (204) in threaded connection with two ends of a rod body of the driving screw rod (202), two ends of the driving screw rod (202) are connected with the inner wall of the sliding seam (201) through bearings, one end of the driving screw rod (202) penetrates out of the supporting base (1) and is connected with a driving motor (203) used for driving the driving screw rod (202) to rotate, the driving motor (203) is connected with the supporting base (1) through a support, and the supporting rod (205) penetrates into the sliding seam (201) and is connected with the driving threaded sleeves (204).