阅读说明：本技术 一种线切割加工直齿轮工装 (Straight gear tool for linear cutting machining ) 是由 徐亮 贾癸卯 杨萍 柏乐 于 2021-07-20 设计创作，主要内容包括：本发明公开了一种线切割加工直齿轮工装,其包括架体、两条平行水平滑轨、第一滑座、第一连接臂、线切割加工辅件和夹紧机构,线切割加工辅件具有线切割对刀孔、线切割丝走道、主体板块中心线、第一定位边和第二定位边,第一定位边和第二定位边以主体板块中心线为对称轴,第一定位边与主体板块中心线的夹角为锐角,夹紧机构与水平滑轨滑动连接。本发明线切割加工直齿轮工装采用这样的结构,线切割加工辅件具有以主体板块中心线为对称轴的第一定位边和第二定位边,利用第一定位边、第二定位边相切及夹紧机构将毛坯准确定位,不仅能线切割加工出直齿轮,同时可将齿轮损坏件作为毛坯线切割加工成直径较小的直齿轮加以利用,能降低制作成本。(The invention discloses a straight gear tool for linear cutting machining, which comprises a frame body, two parallel horizontal sliding rails, a first sliding seat, a first connecting arm, a linear cutting machining auxiliary and a clamping mechanism, wherein the linear cutting machining auxiliary is provided with a linear cutting tool aligning hole, a linear cutting wire path, a main body plate central line, a first positioning edge and a second positioning edge, the first positioning edge and the second positioning edge use the main body plate central line as a symmetry axis, an included angle between the first positioning edge and the main body plate central line is an acute angle, and the clamping mechanism is in sliding connection with the horizontal sliding rails. The straight gear tool for linear cutting machining adopts the structure, the linear cutting machining auxiliary part is provided with the first positioning edge and the second positioning edge which take the central line of the main body plate as the symmetrical axis, and the blank is accurately positioned by utilizing the tangency of the first positioning edge and the second positioning edge and the clamping mechanism, so that the straight gear can be machined by linear cutting, and meanwhile, a damaged gear can be used as a straight gear with a smaller diameter for linear cutting machining of the blank, and the manufacturing cost can be reduced.)

1. The utility model provides a linear cutting processing straight-teeth gear frock which characterized in that: the linear cutting auxiliary comprises a frame body, two parallel horizontal sliding rails, a first sliding seat, a first connecting arm, a linear cutting auxiliary and a clamping mechanism, wherein the two parallel horizontal sliding rails are positioned on the upper part of the frame body, a gear supporting mechanism is fixedly connected on the lower part of the frame body, the first sliding seat is in sliding connection with the horizontal sliding rails, the first sliding seat, the first connecting arm and the linear cutting auxiliary are of a structure connected into a whole, the first connecting arm is positioned between the first sliding seat and the linear cutting auxiliary, the linear cutting auxiliary is provided with a linear cutting tool aligning hole, a linear cutting wire passage, a main body plate central line, a first positioning edge and a second positioning edge, one end of the linear cutting wire passage is communicated with the linear cutting tool aligning hole, the other end of the linear cutting wire passage is respectively intersected with the first positioning edge and the second positioning edge, the central line of the linear cutting wire passage is a plate main body central line, and the first positioning edge and the second positioning edge use the main body plate central line as a symmetrical axis, the included angle between the first positioning edge and the central line of the main body plate is an acute angle, and the clamping mechanism is connected with the horizontal sliding rail in a sliding manner.

2. The straight gear tool for linear cutting machining according to claim 1, characterized in that: the gear support mechanism comprises a gear support seat, a mandrel and a compression spring, the gear support seat is fixed on the baffle, the gear support seat is cylindrical, a step groove for placing the mandrel is formed in the upper surface of the gear support seat, and the compression spring is located below the mandrel.

3. The straight gear tool for linear cutting machining according to claim 2, characterized in that: clamping mechanism include second slide, second linking arm and clamping part, the second linking arm be located between two parallel horizontal sliding rails, second slide and second linking arm rigid coupling, clamping part set up in second linking arm middle part.

4. The straight gear tool for linear cutting machining according to claim 3, wherein the straight gear tool comprises: the clamping part comprises a bolt and an arc-shaped pressing strip, and the arc-shaped pressing strip is fixedly connected to the end part of the bolt.

5. The straight gear tool for linear cutting machining according to claim 4, wherein the straight gear tool comprises: the linear cutting machining auxiliary part is provided with a main body plate long edge, the main body plate long edge is close to the linear cutting tool aligning hole and is perpendicular to the central line of the main body plate, and a linear cutting wire channel is arranged between the linear cutting tool aligning hole and the main body plate long edge.

Technical Field

The invention relates to the field of straight gear linear cutting, in particular to a straight gear linear cutting machining tool.

Background

At present, more than 95 percent of electric spark wire cutting machines at home and abroad adopt numerical control, and adopt a digital automatic control technology to drive the machine tool to automatically finish machining a spur gear according to a numerical control machining program preset and programmed according to geometric parameters of a workpiece before machining. The gear transmission has wide application field, the gear transmission damage is mainly the damage of the swing tooth, the damage forms include pitting, breaking, abrasion, plastic deformation and gluing, and the damage is serious and can only be discarded. At present, the linear cutting processing straight gear tool does not exist, and the damaged gear can be processed into the straight gear as a blank through linear cutting.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the straight gear tool for linear cutting machining is capable of linear cutting machining straight gears, and meanwhile damaged parts of the gears can be used as blanks to be processed into straight gears with small diameters through linear cutting machining.

To solve the technical problem, the technical scheme of the invention is as follows: a straight gear tool for linear cutting machining comprises a frame body, two parallel horizontal slide rails, a first slide seat, a first connecting arm, a linear cutting machining auxiliary part and a clamping mechanism, wherein the two parallel horizontal slide rails are positioned on the upper portion of the frame body, a gear supporting mechanism is fixedly connected to the lower portion of the frame body, the first slide seat is in sliding connection with the horizontal slide rails, the first slide seat, the first connecting arm and the linear cutting machining auxiliary part are of a structure connected into a whole, the first connecting arm is positioned between the first slide seat and the linear cutting machining auxiliary part, the linear cutting machining auxiliary part is provided with a linear cutting tool aligning hole, a linear cutting wire path, a main body plate central line, a first positioning edge and a second positioning edge, one end of the linear cutting wire path is communicated with the linear cutting tool aligning hole, the other end of the linear cutting wire path is intersected with the first positioning edge and the second positioning edge respectively, and the central line of the linear cutting wire path is the main body plate central line, the first positioning edge and the second positioning edge use the central line of the main body plate as a symmetry axis, the included angle between the first positioning edge and the central line of the main body plate is an acute angle, and the clamping mechanism is connected with the horizontal sliding rail in a sliding manner.

The gear support mechanism comprises a gear support seat, a mandrel and a compression spring, the gear support seat is fixed on the baffle, the gear support seat is cylindrical, a step groove for placing the mandrel is formed in the upper surface of the gear support seat, and the compression spring is located below the mandrel.

Clamping mechanism include second slide, second linking arm and clamping part, the second linking arm be located between two parallel horizontal sliding rails, second slide and second linking arm rigid coupling, clamping part set up in second linking arm middle part.

The clamping part comprises a bolt and an arc-shaped pressing strip, and the arc-shaped pressing strip is fixedly connected to the end part of the bolt.

The linear cutting machining auxiliary part is provided with a main body plate long edge, the main body plate long edge is close to the linear cutting tool aligning hole and is perpendicular to the central line of the main body plate, and a linear cutting wire channel is arranged between the linear cutting tool aligning hole and the main body plate long edge.

The straight gear tool for linear cutting machining adopts the structure, the linear cutting machining auxiliary part is provided with the first positioning edge and the second positioning edge which take the central line of a main body plate as a symmetrical shaft, and the blank is accurately positioned by utilizing the tangency of the first positioning edge and the second positioning edge and the clamping mechanism, so that the straight gear can be machined by linear cutting, and meanwhile, a damaged gear can be used as a blank to be machined into a straight gear with a smaller diameter by linear cutting, and the manufacturing cost can be reduced.

Drawings

The straight gear machining by wire cutting according to the present invention will be described in further detail with reference to the accompanying drawings;

FIG. 1 is a schematic structural view of a straight gear linear cutting tool according to the present invention;

fig. 2 is a top view of a linear cutting spur gear processing tool shown in fig. 1, which is reduced in size;

FIG. 3 is an enlarged schematic view of the cutting processing aid of FIG. 1;

in fig. 1, 2, 3, 1, a first carriage; 2. a gear support base; 3. a horizontal slide rail; 4. a mandrel; 5. a second slide carriage; 6. a second connecting arm; 7. a clamping portion; 8. a frame body; 9. a baffle plate; 10. a first connecting arm; 11. wire cutting machining accessories; 12. a compression spring; 13. cutting a tool aligning hole in a linear mode; 14. a first positioning edge; 15. the central line of the main body plate; 16. a second positioning edge; 17. a wire cutting wire walkway; 18. the main body plate block has long edges; 19. a wire cutting wire channel.

Detailed Description

As shown in fig. 1, 2 and 3, the straight gear cutting and machining tool of the present invention includes a frame body 8, two parallel horizontal sliding rails 3, a first sliding seat 1, a first connecting arm 10, a wire cutting and machining auxiliary 11, a second sliding seat 5, a second connecting arm 6, a clamping portion 7, a baffle 9 and a gear supporting mechanism, wherein the upper portion of the frame body 8 has the two parallel horizontal sliding rails 3, the lower portion of the frame body 8 has the baffle 9, the first sliding seat 1 is slidably connected to the horizontal sliding rails 3, the first sliding seat 1, the first connecting arm 10 and the wire cutting and machining auxiliary 11 are integrally connected, the first connecting arm 10 is located between the first sliding seat 1 and the wire cutting and machining auxiliary 11, the second sliding seat 5 is slidably connected to the horizontal sliding rails 3, the second sliding seat 5, the second connecting arm 6 and the clamping portion 7 are integrally connected, and are a clamping mechanism, the second connecting arm 6 is located between the two parallel horizontal sliding rails 3, the second sliding seat 5 is fixedly connected with the second connecting arm 6, the clamping portion 7 is installed in the middle of the second connecting arm 6, the clamping portion 7 comprises a bolt and an arc-shaped pressing strip, and the arc-shaped pressing strip is fixedly connected to the end portion of the bolt. The first sliding seat 1 and the second sliding seat 5 are provided with braking parts for fixing the positions of the first sliding seat 1 and the second sliding seat 5 on the horizontal sliding rail 3.

The gear supporting mechanism comprises a gear supporting seat 2, a mandrel 4 and a compression spring 12, the gear supporting seat is fixed on a baffle plate 9, the gear supporting seat 2 is a cylindrical body, a step groove for placing the mandrel 4 is formed in the upper surface of the gear supporting seat 2, the compression spring 12 is located below the mandrel 4, a conical section is arranged at the top of the mandrel 4, the mandrel 4 is stressed, the compression spring 12 is compressed, and a blank for wire cutting can be subjected to wire cutting no matter a gear hole or a cylinder exists.

The linear cutting processing auxiliary element 11 is provided with a linear cutting tool aligning hole 13, a linear cutting wire passage 17, a main body plate long side 18, a main body plate central line 15, a first positioning side 14 and a second positioning side 16, wherein the main body plate long side 18 is perpendicular to the main body plate central line 15, one end of the linear cutting wire passage 17 is communicated with the linear cutting tool aligning hole 13, the other end of the linear cutting wire passage 17 is respectively intersected with the first positioning side 14 and the second positioning side 16, the central line of the linear cutting wire passage 17 is the main body plate central line 15, the first positioning side 14 and the second positioning side 16 use the main body plate central line 15 as a symmetry axis, the included angle between the first positioning side 14 and the main body plate central line 15 is an acute angle, and the included angle between the first positioning side 14 and the main body plate central line 15 is 60 degrees. In order to enable the cutting wire to directly penetrate through the main body plate block for linear cutting processing, a linear cutting wire channel 19 is arranged between the cutting hole 13 and the long edge 18 of the main body plate block.

According to the technical scheme, a cylinder can be used as a blank line to cut and process a straight gear, a damaged gear can also be used as a blank line to cut and process a straight gear, the damaged gear refers to a gear which is damaged seriously and cannot be used and is not provided with a shaft, the damaged gear can be a straight gear or a helical gear, and the damaged gear is used as a straight gear cut and processed by the blank line and designed by engineers to determine geometric shape parameters.

The invention relates to a straight gear cutting and machining tool, wherein the position of a gear supporting mechanism is fixed, a blank to be subjected to linear cutting and machining is placed on the gear supporting mechanism, the moving amplitude of a linear cutting and machining auxiliary part along a horizontal sliding rail is smaller, the moving amplitude of a clamping part 7 along the horizontal sliding rail is larger, a first positioning edge and a second positioning edge of the linear cutting and machining auxiliary part are tangent to the blank to be subjected to linear cutting and machining, the clamping part 7 clamps, when the damaged gear is used as the blank linear cutting and machining, although gear teeth of the damaged gear are damaged, other dimensional accuracy is still intact, the damaged gear is tangent to the first positioning edge and the second positioning edge, so that a tool setting offset value in the Y direction of a linear cutting and machining coordinate system can be obtained, the technical problem that the tool setting offset value in the Y direction of the linear cutting and machining coordinate system of the damaged gear is difficult to determine is solved, and the gear teeth of the damaged gear are damaged, the common method for acquiring the tool setting offset value in the Y direction can obtain tool setting offset values in the Y direction with different values, and in addition, in the prior art, a method that a mandrel penetrates through a gear hole is adopted, the mandrel is disassembled after the mandrel is assembled to perform linear cutting processing on a damaged part of the gear, namely how to acquire an accurate tool setting offset value in the Y direction by adopting a scheme of the mandrel, and a preferable technical scheme is not provided.

By adopting the structure, the straight gear can be processed by linear cutting, then the straight gear is polished to improve the precision of the straight gear, and meanwhile, a damaged gear can be processed into the straight gear with a smaller diameter by linear cutting, so that the manufacturing cost is reduced.