CN211680104U

CN211680104U - Drilling clamp for positioning gear

Info

Publication number: CN211680104U
Application number: CN201922060149.XU
Authority: CN
Inventors: 李鹏; 杨泽; 梁宝忠
Original assignee: Xian Fast Auto Drive Co Ltd
Current assignee: Xian Fast Auto Drive Co Ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2020-10-16
Anticipated expiration: 2029-11-25

Abstract

The utility model relates to a boring grab, concretely relates to boring grab for gear location solves current boring grab structure complicacy, can produce the problem of interfering to the cutter. The drilling clamp for positioning the gear comprises a clamp body, an adjusting block, a positioning pin, a mounting block, an anti-error pin, a pressing plate and a connecting rod; the connecting rod is fixedly arranged on the end face of the clamp body, and the pressing plate is arranged on the connecting rod and can slide up and down along the connecting rod; the end face of the clamp body is provided with a plurality of mounting notches which are uniformly distributed by taking the connecting rod as the center; the adjusting block is arranged in the mounting notch and can move in the mounting notch, and the positioning pin is fixedly arranged on the adjusting block; a plurality of mistake proofing round pins set up on the installation piece, and the installation piece sets up in the installation breach. The utility model provides a boring grab for gear positioning sets up mounting fixture and tooth rule as an organic whole, need not to set up external tooth rule to avoided the problem that on-the-spot drilling processing cutter interfered.

Description

Drilling clamp for positioning gear

Technical Field

The utility model relates to a boring grab, concretely relates to boring grab for gear location.

Background

At present, the mode of 'inner hole positioning and end face pressing' is generally adopted in the machining industry for clamping of a drilling device, and parts with position relations between partial holes and external spline teeth are positioned by an external tooth gauge.

As shown in fig. 1, for a gear in a CVT transmission, it is necessary to drill a plurality of end surface holes on the outer peripheral surface of the gear, the plurality of end surface holes are arranged in the axial direction, the end surface holes and external spline teeth have a positional relationship, and the end surface holes need to be drilled into external spline tooth grooves, so that the teeth need to be accurately aligned. The existing mode is that the tooth gauge is positioned and fixedly installed through an installing clamp, the installing clamp and the tooth gauge are complex in structure, and meanwhile, due to the particularity of the drilling position, the tooth gauge is installed outside, interference can be caused on a cutter, and machining is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that current boring grab structure is complicated, can produce the interference to the cutter, provide a boring grab for gear location.

The technical scheme of the utility model as follows:

a drilling clamp for positioning a gear comprises a clamp body, an adjusting block, a positioning pin, an installation block, an error-proof pin, a pressing plate and a connecting rod; the connecting rod is fixedly arranged in the center of the end face of the clamp body, and the pressing plate is arranged on the connecting rod and can slide up and down along the connecting rod; the end face of the clamp body is provided with a plurality of mounting notches which are uniformly distributed by taking the connecting rod as the center; the adjusting block is arranged in the mounting notch and can move in the mounting notch, and the positioning pin is fixedly arranged on the adjusting block; a plurality of mistake proofing round pins set up on the installation piece, and a plurality of installation pieces set up in the installation breach.

Furthermore, waist-shaped holes are formed in two sides of the adjusting block, an adjusting bolt is arranged on the clamp body, the adjusting bolt penetrates through the waist-shaped holes to connect the adjusting block with the clamp body, and the adjusting block is moved in the mounting gap.

Further, the top of connecting rod is provided with stop nut, prevents that the clamp plate from droing the connecting rod.

Further, the clamp body comprises a lower chassis and an upper barrel arranged above the lower chassis, the mounting notch is formed in the end face of the upper barrel, a mounting hole is formed in the lower chassis, and the clamp body is connected with the mounting platform through the mounting hole and the mounting bolt.

Furthermore, a lightening hole is formed in the upper cylinder body.

Further, the mistake proofing pin is a bolt, and the bolt penetrates through the mounting block and is locked through a nut arranged below the mounting block.

Furthermore, the pressing plate is provided with a semi-waist-shaped hole communicated with the outside, and the pressing plate can be quickly detached.

Furthermore, the number of the installation notches is four, and the installation notches are uniformly distributed on the end face of the clamp body.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides a boring grab for gear positioning sets up mounting fixture and tooth rule as an organic whole, need not to set up external tooth rule to avoided the problem that on-the-spot drilling processing cutter interfered. This boring grab guarantees that clamping part tooth's socket direction is unanimous at every turn, carries out the accurate positioning to the part of being processed, has also solved the inhomogeneous problem of drilling circumference distribution simultaneously, and in addition, the device simple structure, it is easy and simple to handle, be fit for batch production on-the-spot.

Drawings

FIG. 1 is a block diagram of gears in a CVT transmission;

FIG. 2 is a schematic structural view of a drilling jig for positioning gears according to the present invention;

FIG. 3 is a top view of the drilling jig for positioning gears of the present invention;

figure 4 is a side view of the utility model discloses a boring grab for gear positioning.

Reference numerals: 1-a clamp body, 2-an adjusting block, 3-a positioning pin, 4-an installation block, 5-an error-proof pin, 6-a pressing plate, 7-a connecting rod, 8-an installation notch, 9-a limiting nut, 10-an installation bolt, 11-a lower chassis, 12-an upper cylinder, 13-an adjusting bolt, 14-a lightening hole, 21-a kidney-shaped hole and 61-a semi-kidney-shaped hole.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments.

In the machining process of relevant parts of the CVT, some drilling procedures need to be carried out by taking the internal spline as a positioning reference, and the drilled holes and the teeth of the internal spline have a certain position relation, so that the drilling clamp with the gear positioning function is designed.

The utility model provides a do not take to the tooth rule, will be to the integrated boring grab on the anchor clamps body of tooth function. The design of this new anchor clamps has solved the problem that on-spot drilling processing cutter interfered, has also solved the inhomogeneous problem of drilling circumference distribution simultaneously, guarantees that clamping part tooth's socket direction is unanimous at every turn, and this anchor clamps simple structure, convenient operation are fit for the batch production scene.

As shown in fig. 2, 3 and 4, the drilling jig for positioning gears provided by the present invention comprises a jig body 1, an adjusting block 2, a positioning pin 3, a mounting block 4, a mistake-proofing pin 5, a pressing plate 6 and a connecting rod 7; the connecting rod 7 is fixedly arranged at the center of the end face of the clamp body 1, the pressing plate 6 is arranged on the connecting rod 7, and the pressing plate 6 can slide up and down along the connecting rod 7. Specifically, the one end of connecting

rod

7 and 1 up end threaded connection of anchor clamps body, the other end passes clamp plate 6, and its top is provided with stop nut 9, prevents that clamp plate 6 from droing connecting rod 7, and the hole on clamp plate 6 specifically is half waist shape hole 61 with outside intercommunication, and this half waist shape hole 61 can realize clamp plate 6's quick dismantlement when not dismantling stop nut 9.

The clamp body 1 comprises a lower chassis 11 and an upper barrel 12 arranged above the lower chassis 11, wherein the lower chassis 11 and the upper barrel 12 can be integrally arranged or separately arranged; a plurality of mounting notches 8 are formed in the end face of the upper barrel 12, and the mounting notches 8 are uniformly distributed by taking the connecting rod 7 as the circle center; the lower chassis 11 is provided with a mounting hole connected with the mounting platform, and when the clamp is used, the clamp body 1 and the mounting platform are connected through the mounting hole and the mounting bolt 10, so that the position of a drilled hole is prevented from being influenced by the movement of the clamp body 1. The upper cylinder body 12 is provided with the lightening hole 14, so that the weight of the whole device can be lightened, and the installation and the use of an operator are facilitated. The mounting groove of the lower chassis 11 plate is used for connecting with a machine tool, and the hole on the side surface is an observation hole used for observing whether the bottom screw is assembled and disassembled in place.

The quantity of adjusting block 2 is one, and it sets up in installation breach 8, can remove in installation breach 8, and this function specifically realizes through following setting, also can realize through other, and 2 both sides of adjusting block are provided with waist shape hole 21, and the fixed adjusting bolt 13 that is provided with on the anchor clamps body 1, adjusting bolt 13 pass waist shape hole 21 and are connected adjusting block 2 and anchor clamps body 1, realize that adjusting block 2 removes in installation breach 8.

The number of the mistake proofing pins 5 is three, the mistake proofing pins are arranged on the installation blocks 4, and the installation blocks 4 are arranged in the installation gaps 8. The error-proofing pin 5 may be a bolt, which is passed through the mounting block 4 and locked by a nut provided under the mounting block 4. At this moment, three mistake proofing round pin 5 and a locating pin 3 equipartition are at the terminal surface of anchor clamps body 1, and its circumference equipartition along using connecting rod 7 as the center, and mistake proofing round pin 5 and locating pin 3 not only carry out accurate location to the teeth of a cogwheel of the part of being processed, can support the part of being processed moreover.

When processing terminal surface hole, will be processed the part and install between last barrel 12 and clamp plate 6 to compress tightly by processing the part through clamp plate 6, simultaneously, mistake proofing round pin 5 and locating pin 3 card are gone into by the external splines tooth's socket of processing the part, carry out accurate location to the work piece. During drilling, the device and the machined part need wholly overturn 90, and at this moment, mistake proofing round pin 5 and locating pin 3 can carry out the stable support to the processing part. The anti-misplugging effect: the parts are prevented from rotating and inconsistent in the repeated clamping process, and meanwhile, the auxiliary supporting function is also realized; the positioning pin acts: the position of the part is accurately fixed, and the position precision and the auxiliary supporting function of part drilling are guaranteed.

When all parts of the clamp are installed, the parts need to be assembled strictly according to the requirements of drawing sizes and tolerances, and the precision of the clamp is ensured; in the using process of the clamp, the adjusting block 2 can be subjected to sliding fine adjustment to adjust the gap between the adjusting block and the tooth socket of the part; the positioning pin 3 and the error-proof pin 5 arranged opposite to the positioning pin are contacted with the tooth grooves of the parts in an ideal state, so that the positioning pin plays a role in positioning and tooth aligning, and the other two error-proof pins 5 play a role in preventing the parts from being dislocated; when the device is used, the processed parts are arranged in the positioning pins 3 by the tooth pairs, the end faces are tightly attached, and then the pressing plate 6 is used for pressing the nuts to be screwed down, so that the device is convenient and quick.

Claims

1. A boring grab for gear positioning which characterized in that: the clamp comprises a clamp body (1), an adjusting block (2), a positioning pin (3), a mounting block (4), an anti-mistake pin (5), a pressing plate (6) and a connecting rod (7);

the connecting rod (7) is fixedly arranged at the center of the end face of the clamp body (1), and the pressing plate (6) is arranged on the connecting rod (7) and can slide up and down along the connecting rod (7);

the end face of the clamp body (1) is provided with a plurality of mounting notches (8), and the mounting notches (8) are uniformly distributed by taking the connecting rod (7) as the center;

the adjusting block (2) is arranged in the mounting notch (8) and can move in the mounting notch (8), and the positioning pin (3) is fixedly arranged on the adjusting block (2);

a plurality of mistake proofing round pins (5) set up on installation piece (4), and a plurality of installation pieces (4) set up in installation breach (8).

2. The drilling jig for gear positioning as recited in claim 1, wherein: adjusting block (2) both sides are provided with waist shape hole (21), be provided with adjusting bolt (13) on anchor clamps body (1), adjusting bolt (13) pass waist shape hole (21) and are connected adjusting block (2) and anchor clamps body (1), realize that adjusting block (2) remove in installation breach (8).

3. The drilling jig for gear positioning as recited in claim 2, wherein: the top end of the connecting rod (7) is provided with a limiting nut (9) for preventing the pressing plate (6) from falling off the connecting rod (7).

4. The drilling jig for gear positioning as recited in claim 1, 2 or 3, wherein: the clamp body (1) comprises a lower chassis (11) and an upper barrel (12) arranged above the lower chassis (11), an installation notch (8) is formed in the end face of the upper barrel (12), an installation hole is formed in the lower chassis (11), and the clamp body (1) is connected with an installation platform through the installation hole and an installation bolt (10).

5. The drilling jig for gear positioning as recited in claim 4, wherein: the upper cylinder body (12) is provided with a lightening hole (14).

6. The drilling jig for gear positioning as recited in claim 5, wherein: the mistake proofing pin (5) is a bolt, and the bolt penetrates through the mounting block (4) and is locked through a nut arranged below the mounting block (4).

7. The drilling jig for gear positioning as recited in claim 6, wherein: and a semi-waist-shaped hole (61) communicated with the outside is formed in the pressing plate (6) and used for realizing the quick disassembly of the pressing plate (6).

8. The drilling jig for gear positioning as recited in claim 7, wherein: the number of the installation notches (8) is four, and the installation notches are uniformly distributed on the end face of the clamp body (1).