CN213827268U

CN213827268U - Gear fixture device for machining spline holes of sector gears

Info

Publication number: CN213827268U
Application number: CN202023068377.0U
Authority: CN
Inventors: 李鸿超; 李大磊; 孙鑫垚
Original assignee: Zhengzhou University
Current assignee: Zhengzhou University
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-07-30
Anticipated expiration: 2030-12-18

Abstract

The utility model discloses a gear clamp device for processing a spline hole of a sector gear, belonging to the technical field of broaching machines; the broaching machine device for processing the spline hole of the sector gear is formed together with a main oil cylinder power device, a broaching tool clamping mechanism, an automatic tool feeding device and a broaching tool which are connected to a workbench of a body of the broaching machine; the gear clamp device is composed of a fixing frame, a clamp disc, a spring, a shell, a positioning clamp strip and a cylindrical pin, wherein the fixing frame is arranged on the broaching machine body, the left end of the clamp disc is connected with the fixing frame in a matched mode, the right end of the clamp disc is provided with a sector gear, and the spring, the shell and the positioning clamp strip are connected to the clamp disc at the upper end of the sector gear. The utility model discloses a gear teeth of a cogwheel of the fixed sector gear of chucking is connected with sector gear's cooperation to the locator card strip on the gear anchor clamps to this rotational degree of freedom who restricts sector gear realizes sector gear's the teeth of a cogwheel for the angle requirement of anchor clamps dish axis, improves the machining precision.

Description

Gear fixture device for machining spline holes of sector gears

Technical Field

The utility model relates to a broach gear fixture device, concretely relates to gear fixture device of processing sector gear splined hole belongs to broaching machine technical field.

Background

Broaching machines are machines for machining through holes, planes, formed surfaces, etc. of workpieces using broaches as cutting tools, and are commonly used for broaching key grooves of gears in gear machining, in which the broaches pass through inner holes of the gears to perform broaching work.

However, for the sector gear with certain angular position requirements on the gear tooth position and the key groove of the spline hole, when the gear spline key groove is processed by adopting the traditional method, the angular requirements of the key groove relative to the tooth profile or the shape cannot be met, and the circumferential rotation freedom degree of the broach cannot be limited.

Therefore, different from the traditional broaching machine device, the broaching machine device not only needs to limit the degree of freedom of the sector gear rotating around the axis of the hole thereof, but also meets the angle requirement of the gear teeth of the sector gear relative to the axis of the clamp disc; and meanwhile, the degree of freedom of the rotation of the key groove broach around the axis of the key groove broach is limited, and the requirement of the angle of the broach teeth relative to the axis of the clamp disc is met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: when overcoming among the prior art and adopting traditional mode processing gear spline keyway, can't restrict the problem of sector gear around its hole axis rotational freedom, provide a gear fixture device who processes sector gear splined hole, be connected the teeth of a cogwheel of the fixed sector gear of chucking through the cooperation of the locator card strip on the gear fixture and sector gear to this rotation freedom that restricts sector gear, the teeth of a cogwheel of realization sector gear is for the angle requirement of anchor clamps dish axis, improves the machining precision.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a gear clamp device for machining a spline hole of a sector gear is fixedly connected to the middle of a workbench of a broaching machine body, and forms a broaching machine device for machining the spline hole of the sector gear together with a main oil cylinder power device, a broaching tool clamping mechanism, an automatic tool feeding device and a broaching tool which are connected to the workbench of the broaching machine body; the gear clamp device is composed of a fixing frame, a clamp disc, a spring, a shell, a positioning clamp strip and a cylindrical pin, wherein the fixing frame is vertically arranged, the lower end face of the fixing frame is fixedly connected to a workbench of a lathe bed of the broaching machine, the left end of the clamp disc is connected with the fixing frame in a matched mode, the right end of the clamp disc is provided with a sector gear, the sector gear is located on the same straight line with the central hole line of the clamp disc, the spring, the shell and the positioning clamp strip are connected to the clamp disc at the upper end of the sector gear, and the rotation freedom degree of the sector gear is limited by the fact that the lower end of the positioning clamp strip is connected with the sector gear in a matched mode.

The middle part of the fixing frame is provided with a through hole, the left end of the clamp disc is connected with a sleeve, the middle part of the clamp disc is provided with a broach hole, and the clamp disc is connected in the through hole on the fixing frame through the sleeve; the sleeve pipe with the aperture of broach hole is the same and is located the same axis, the broach passes through broach hole with the bushing coupling is in on the anchor clamps dish, sector gear is located the right-hand member of anchor clamps dish is connected through the shaft hole on the broach.

The upper right end fixed connection boss of anchor clamps dish, the upper end of spring is fixed the boss upper and lower extreme with the locator card strip is connected, the shell sets up the spring with the outside and the fixed connection of locator card strip are in on the anchor clamps dish, the cylindric lock passes shell fixed connection be in on the locator card strip, the bottom of locator card strip is provided with the semicircle dop, the semicircle dop be located the lower extreme of shell and with sector gear chucking cooperation is connected.

The cross section of the shell is of a rectangular groove cover structure, threaded holes are formed in two sides of the shell and are connected with screws, pin grooves are formed in the shell top, the shell is fixedly connected to the clamp disc through the threaded holes and the screws, the lower end of the cylindrical pin is fixedly connected to the positioning clamp strip, the upper end of the cylindrical pin is located in the pin grooves in the shell top, and the positioning clamp strip moves up and down through compression or extension of the spring and limits the up-down displacement through the pin grooves.

The semicircular chuck is matched with the tooth profile of the sector gear, and the rotation of the sector gear is limited by the up-and-down movement of the positioning clamping strip and the cylindrical pin.

The utility model has the advantages that: 1) the utility model discloses a gear teeth of a cogwheel of the fixed sector gear of chucking is connected with sector gear's cooperation to the locator card strip on the gear anchor clamps to this rotational degree of freedom who restricts sector gear satisfies sector gear's the teeth of a cogwheel for the angle requirement of anchor clamps dish axis.

2) The utility model discloses the bottom of well locator card strip is the semicircle dop, and the profile looks adaptation of semicircle dop and sector gear, is connected through the cooperation of the teeth of a cogwheel chucking of semicircle dop and sector gear, but the angle of the sector gear teeth of a cogwheel for the semicircle dop of manual regulation when installing location sector gear, satisfies sector gear's the teeth of a cogwheel for the angle requirement of anchor clamps dish axis, improves the machining precision of shaping work piece.

3) The utility model discloses a locator card strip is connected at the lower extreme of spring, and the accessible realizes the purpose that reciprocates with tensile the compression of spring to through the round pin groove cooperation on cylindric lock and the shell limit the displacement volume that locator card strip reciprocated, avoid the locator card strip to damage sector gear's the teeth of a cogwheel when reciprocating, guarantee the normal clear of broaching work, improve device work efficiency.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the fixture plate of FIG. 1 in connection with a fixture;

FIG. 3 is a right side view of FIG. 1;

fig. 4 is a schematic structural view of the utility model connected to a broaching machine.

In the figure, 1-broaching machine body, 2-main oil cylinder power device, 3-broaching tool clamping mechanism, 4-broaching tool, 5-fixing frame, 501-through hole, 6-clamp disc, 601-sleeve, 602-broaching tool hole, 7-spring, 8-shell, 801-threaded hole, 802-screw, 803-pin groove, 9-positioning clamping strip, 901-semicircular clamping head, 10-cylindrical pin, 11-sector gear and 12-boss.

Detailed Description

The invention is further explained below with reference to the drawings and the embodiments.

Example (b): as shown in fig. 1-4, a gear fixture device of processing sector gear splined hole, fixed connection is on the workstation middle part of broaching machine lathe bed 1, gear fixture device is by mount 5, anchor clamps dish 6, spring 7, shell 8, locator card strip 9 and cylindric lock 10 are constituteed, mount 5 is vertical to be set up and terminal surface fixed connection is on the workstation of broaching machine lathe bed 1 down, the left end and the mount 5 cooperation of anchor clamps dish 6 are connected, the right-hand member sets up sector gear 11, and sector gear 11 and mount 5, the centre bore line of anchor clamps dish 6 all is located same straight line, spring 7, shell 8 and locator card strip 9 all connect on anchor clamps dish 6 of sector gear 11 upper end, and the lower extreme through locator card strip 9 cooperates with sector gear 11 to be connected and restricts sector gear 11's rotation degree of freedom.

The middle part of the fixed frame 5 is a through hole 501, the left end of the clamp disc 6 is welded with a sleeve 601, the middle part is provided with a broach hole 602, and the clamp disc 6 is connected in the through hole 501 on the fixed frame 5 through the sleeve 601; the diameter of the sleeve 601 is the same as that of the broach hole 602 and is located on the same axis, the broach 4 is connected to the clamp disc 6 through the broach hole 602 and the sleeve 601, and the sector gear 11 is located at the right end of the clamp disc 6 and is connected to the broach 4 through a shaft hole.

Boss 12 is connected to the upper right end of anchor clamps dish 6, boss 12 passes through the horizontal fixed connection of welded connection mode on anchor clamps dish 6, spring 7's upper end is fixed on boss 12, the lower extreme is connected with locator card strip 9, shell 8 sets up outside and fixed connection at spring 7 and locator card strip 9 on anchor clamps dish 6, cylindric lock 10 passes shell 8 fixed connection on locator card strip 9, the bottom of locator card strip 9 is provided with semicircle dop 901, semicircle dop 901 is located shell 8's lower extreme and is connected with 11 chucking cooperations of sector gear.

The cross-section of shell 8 is rectangle capping structure, shell 8's both sides all set up screw hole 801 and connect screw 802, the shell top sets up cotter way 803, shell 8 passes through screw hole 801 and screw 802 fixed connection on anchor clamps dish 6, the lower extreme fixed connection of cylindric lock 10 is on locator card strip 9, the upper end is located the cotter way 803 on shell 8 shell top, locator card strip 9 reciprocates and through the restriction of cotter way 803 upper and lower displacement volume to the compression or the extension of spring 7.

The semi-circular chuck 901 is matched with the tooth profile of the sector gear 11, and limits the rotation of the sector gear 11 through the up-and-down movement of the positioning clamping strip 9 and the cylindrical pin 10.

The gear clamp device, a main oil cylinder power device 2 connected to a workbench of a broaching machine body 1, a broach clamping mechanism 3, an automatic tool feeding device and a broach 4 form the broaching machine device for machining the spline hole of the sector gear.

The left end of the broach clamping mechanism 3 is connected to a power rod of the main oil cylinder power device 2 through a flange, and the broach clamping mechanism 3 is composed of a chuck body, an end cover, an electromagnet, a spring, an armature jaw, an adjustable screw and a microswitch connection control circuit.

The automatic cutter feeding device consists of a cutter supporting device, a cutter clamping body, an electromagnet, a spring, an armature claw, a rubber bottom, a lifting screw, a microswitch and a guide rail; the right end of the broach 4 supports the broach 4 through a cutter supporting device in the broaching process, flat grooves are symmetrically formed in the circumference of the handle part of the broach 4 up and down, and the rotation freedom degree of the broach 4 is limited through the matching connection of the bottom of the armature claw and the flat grooves.

The working principle is as follows: when broaching in-process, broach 4 gets into broach clamping mechanism 3 in, broach 4 gets into the chuck internally and touches micro-gap switch, the electro-magnet through inside control line outage stop work, the armature jack catch pops out under the effect of spring, the bottom of armature jack catch is connected with the flat recess cooperation of broach 4 stalk portion to chucking broach 4 reaches the purpose of restriction broach 4's circumferential direction rotation degree of freedom, realizes that the broach carries out broaching according to the angle with the design keyway.

Broach 4 passes the broach hole of fixing anchor clamps dish 6 and sector gear 11 on mount 5 to be connected with sector gear 11's teeth of a cogwheel chucking cooperation through the semicircle dop 11 of location card strip 9 bottom, the purpose that the location card strip 9 reciprocated through the compression and the tensile realization of spring 7, and restrict the displacement volume that the location card strip 9 reciprocated through the cooperation of cylindric lock 10 and the keyway 803 on the shell, reach the purpose of restriction sector gear 11 rotational degree of freedom, satisfy sector gear's the teeth of a cogwheel for the angle requirement of anchor clamps dish axis.

After broaching is finished, the broach 4 returns, the broach 4 enters the automatic broach feeding device, when the tail of the broach 4 contacts a microswitch of the broach clamping body, the electromagnet stops working, the armature jaw bounces down under the action of the spring, rubber assembled at the bottom of the armature jaw contacts with the tail of the broach 4 to press the broach 4, and meanwhile, the automatic broach feeding device moves backwards on the guide rail to prepare for broaching of the next workpiece.

The utility model discloses a semicircle dop of the last locator card strip bottom of gear clamp is connected with sector gear's teeth of a cogwheel chucking cooperation to this rotational degree of freedom who restricts sector gear satisfies sector gear's the teeth of a cogwheel for the angle requirement of anchor clamps dish axis, improves the machining precision of shaping work piece.

The utility model discloses the device is through constituteing the broaching machine device of processing gear spline keyway together with broach chuck device, broach, automatic cutter feeding device, satisfies sector gear's the teeth of a cogwheel simultaneously and for the angle requirement of anchor clamps dish axis and broach sword tooth for the angle requirement of anchor clamps dish axis, realizes the purpose of broaching machine device processing gear spline hole.

The above description is only for the purpose of illustrating the technical solutions of the present invention and not for limiting the same, and other modifications or equivalent replacements made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a gear fixture device of processing sector gear splined hole, fixed connection is on the workstation middle part of broaching machine lathe bed (1), its characterized in that: the broaching machine device for machining the spline hole of the sector gear is formed together with a main oil cylinder power device (2), a broaching tool clamping mechanism (3), an automatic tool feeding device and a broaching tool (4) which are connected to a workbench of the broaching machine body (1); the gear clamp device consists of a fixed frame (5), a clamp disc (6), a spring (7), a shell (8), a positioning clamping strip (9) and a cylindrical pin (10), the fixed mount (5) is vertically arranged, the lower end surface of the fixed mount is fixedly connected on a workbench of the broaching machine body (1), the left end of the clamp disc (6) is matched and connected with the fixed frame (5), the right end is provided with a sector gear (11), and the sector gear (11) is positioned on the same straight line with the central hole lines of the fixed frame (5) and the clamp disc (6), the spring (7), the shell (8) and the positioning clamping strip (9) are all connected on the clamp disc (6) at the upper end of the sector gear (11), and the lower end of the positioning clamping strip (9) is matched and connected with the sector gear (11) to limit the rotational freedom degree of the sector gear (11).

2. The gear jig apparatus for machining a spline hole of a sector gear according to claim 1, wherein: the middle part of mount (5) is through-hole (501), the left end adapter sleeve (601), the middle part of anchor clamps dish (6) set up broach hole (602), anchor clamps dish (6) are passed through sleeve pipe (601) are connected on mount (5) in through-hole (501).

3. The gear jig device for machining a spline hole of a sector gear according to claim 2, wherein: the sleeve (601) is the same as the broaching hole (602) in diameter and is located on the same axis, the broaching tool (4) is connected to the clamp disc (6) through the broaching hole (602) and the sleeve (601), and the sector gear (11) is located at the right end of the clamp disc (6) and is connected to the broaching tool (4) through a shaft hole.

4. The gear jig apparatus for machining a spline hole of a sector gear according to claim 1, wherein: the right upper end of the clamp disc (6) is fixedly connected with a boss (12), the upper end of the spring (7) is fixed on the boss (12), the upper end and the lower end of the spring (7) are connected with the positioning clamp strip (9), the shell (8) is arranged outside the spring (7) and the positioning clamp strip (9) and is fixedly connected onto the clamp disc (6), the cylindrical pin (10) penetrates through the shell (8) and is fixedly connected onto the positioning clamp strip (9), a semicircular clamping head (901) is arranged at the bottom of the positioning clamp strip (9), and the semicircular clamping head (901) is located at the lower end of the shell (8) and is connected with the sector gear (11) in a clamping and matching mode.

5. The gear clamp device for machining spline holes of sector gears according to claim 4, wherein: the cross section of the shell (8) is of a rectangular groove cover structure, threaded holes (801) are formed in two sides of the shell (8) and connected with screws (802), and pin grooves (803) are formed in the top of the shell, the shell (8) is fixedly connected onto the clamp disc (6) through the threaded holes (801) and the screws (802), the lower end of the cylindrical pin (10) is fixedly connected onto the positioning clamping strip (9), the upper end of the cylindrical pin is located in the pin grooves (803) in the top of the shell (8), and the positioning clamping strip (9) moves up and down through compression or extension of the spring (7) and limits the up-and-down displacement through the pin grooves (803).

6. The gear clamp device for machining spline holes of sector gears according to claim 4, wherein: the semicircular chuck (901) is matched with the tooth profile of the sector gear (11), and the rotation of the sector gear (11) is limited by the up-and-down movement of the positioning clamping strip (9) and the cylindrical pin (10).