Push broach processing handle square hole tooling

Abstract

The utility model discloses a kind of push broach processing hand handle square hole tooling, it is related to the technical field of square hole processing tooling, the utility model aims to solve the problem of difficult to realize positioning when using broaching machine to process square hole on handle, the utility model includes lower template, the lower template is provided with the support platform for supporting handle body, the lower template is provided with positioning mandrel, the pre-processing hole of handle body is coaxially arranged with the positioning mandrel, avoiding hole is opened in the positioning mandrel;Two guide pillars are also provided on the upper template, two The guide column is slidably connected with upper template, push broach is arranged between the upper template and the handle body, the lower end of push broach is in abutment with the edge of pre-processing hole on the handle body, the top end of push is in abutment with the upper template, the upper surface of the upper template is provided with the connecting sleeve for connecting driving device, to be used for driving the upper template up and down.

Description

Technical Field

[0001] This utility model relates to the technical field of square hole machining fixtures, specifically to a push-cut tool for machining square holes in handles. Background Technology

[0002] There are several ways to process square holes, including milling, wire cutting, laser cutting, and broach cutting. Among them, broach cutting mainly uses a broach to pass through the pre-machined round hole on the workpiece to process the square hole.

[0003] When processing valve handles, a square hole is usually required. However, when the broaching machine is used to process the square hole of the handle, the special shape of the handle makes it difficult to clamp and fix it, which makes it difficult to position the square hole on the broaching machine. Utility Model Content

[0004] To address the aforementioned problem of difficulty in positioning when machining square holes on handles using a broaching machine, this invention proposes a tooling for machining square holes on handles using a pusher. The tooling includes a lower template with a support platform for supporting the handle body. A positioning mandrel is also provided on the lower template, and a pre-machined hole on the handle body is coaxially aligned with the positioning mandrel. An clearance hole is provided within the positioning mandrel. Two guide pillars are also provided on the lower template, and an upper template is slidably connected to these guide pillars. A pusher is positioned between the upper template and the handle body. The lower end of the pusher abuts against the edge of the pre-machined hole on the handle body, and the upper end of the pusher abuts against the upper template. A connecting sleeve for connecting a drive device is provided on the upper surface of the upper template to drive the upper template to move up and down.

[0005] A further feature of this invention is that the output end of the output shaft of the drive device is disposed within the connecting sleeve, and the output connecting sleeve is threaded with at least two bolts, which abut against the output shaft of the drive device.

[0006] A further feature of this invention is that a positioning plate is provided on the lower surface of the upper template, and a positioning hole is provided on the positioning plate corresponding to the top end of the pusher, with the top end of the pusher abutting against the positioning hole.

[0007] A further feature of this invention is that the support platform includes a guide block, a V-shaped block is slidably connected to the guide block, and the handle of the handle body is supported within the V-shaped block.

[0008] A further feature of this invention is that a spring is provided at the bottom of the V-shaped block, the lower end of the spring is fixedly connected to the lower template, and the upper end of the spring abuts against the V-shaped block.

[0009] A further feature of this invention is that a limiting pin is provided on the side wall of the guide block, and a limiting groove is provided on the side wall of the V-shaped block corresponding to the limiting pin, with one end of the limiting groove inserted into the guide block and set inside the limiting groove.

[0010] The beneficial effects of this utility model are as follows:

[0011] By setting up a support platform, the handle body can be supported. Combined with the drive device and the push of the upper template, the push can be pushed downward, thus changing the pulling process of the broach into a downward pushing process. The downward pushing force is directly applied to the handle body, which, together with the lower template, can stably clamp and limit the handle body, allowing the handle body to be pushed more stably to process square holes. Attached Figure Description

[0012] Figure 1 A schematic diagram of the structure of this utility model is shown.

[0013] Figure 2 This diagram shows the structure of the present invention after the pusher blade has been removed. Figure 1 .

[0014] Figure 3 It shows Figure 2 Structural diagram Figure 2 .

[0015] Figure 4 It shows Figure 2 Structural diagram Figure 3 .

[0016] Figure 5 It shows Figure 4 A magnified view of a portion of point A in the middle.

[0017] Figure 6 An exploded view of the support platform is shown.

[0018] Figure 7 It shows Figure 6 A magnified view of a section at point B in the middle.

[0019] Reference numerals: 1. Lower template; 11. Positioning mandrel; 111. Clearance hole; 2. Support platform; 21. Guide block; 211. Limiting pin; 22. V-block; 221. Limiting groove; 23. Spring; 3. Guide post; 4. Upper template; 41. Connecting sleeve; 42. Positioning plate; 421. Positioning hole; 5. Push knife; 6. Handle body. Detailed Implementation

[0020] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0021] refer to Figure 1 , 2 This utility model proposes a tooling for machining square holes in a handle with a pusher 5, including a lower template 1, a support platform 2 for supporting the handle body 6 on the lower template 1, the handle of the handle body 6 is supported on the support platform 2, a positioning mandrel 11 is also embedded in the lower template 1, a pre-machined hole is opened on the handle body 6, the pre-machined hole is coaxially arranged with the positioning mandrel 11, and an avoidance hole 111 is opened in the positioning mandrel 11.

[0022] Two guide pillars 3 are fixedly connected to the lower template 1. The two guide pillars 3 are arranged parallel to each other and perpendicular to the lower template 1. An upper template 4 is slidably connected to the two guide pillars 3. The upper template 4 is parallel to the lower template 1 and can slide up and down along the guide pillars 3. A pusher 5 is also provided between the upper template 4 and the handle body 6. The lower end of the pusher 5 abuts against the edge of the pre-machined hole of the handle body 6, and the top end of the pusher 5 abuts against the upper template 4. A connecting sleeve 41 for connecting a drive device is also fixedly connected to the upper surface of the upper template 4. The drive device is a hydraulic cylinder. The output shaft of the drive device extends into the connecting sleeve 41. Four bolts are threaded on the side wall of the connecting sleeve 41. The four bolts are also arranged at equal angles around the circumference of the connecting sleeve 41. The bolts abut against the output shaft of the drive device to achieve the connection of the drive device, so that the drive device can push the upper template 4 to move up and down, thereby pushing the pusher 5 to feed and realize the machining of the hole on the upper part of the handle body 6.

[0023] It should be noted that the pusher 5 is a type of broach; in this application, the method of broaching feed is simply modified to push feed.

[0024] refer to Figure 3 A positioning plate 42 is bolted to the lower surface of the upper template 4. A square positioning hole 421 is provided on the positioning plate 42 corresponding to the top of the push knife 5. The top of the push knife 5 is pressed against the positioning hole 421, thereby achieving the purpose of installing and positioning the push knife 5.

[0025] refer to Figure 4 , 5 The support platform 2 includes a guide block 21, which is fixedly connected to the lower template 1 by bolts. A V-shaped block 22 is slidably connected inside the guide block. The notch of the V-shaped block 22 is set upward. The handle of the handle body 6 is supported inside the V-shaped block 22 to achieve a better support effect for the handle body 6.

[0026] A spring 23 is provided at the lower end of the V-block 22. The lower end of the spring 23 is fixedly connected to the lower template 1, and the top end of the spring 23 abuts against the V-block 22, thereby allowing the relative position of the handle body 6 to be adjusted so that the pre-machined hole of the handle body 6 can accurately abut against the spindle during the processing.

[0027] refer to Figure 6 , 7 Two limiting pins 211 are provided on the side wall of the guide block 21. The two limiting pins 211 are respectively set on both sides of the V-shaped block 22. Limiting grooves 221 are opened on both sides of the V-shaped block 22 corresponding to the limiting pins 211. One end of the limiting pin 211 extends into the guide block 21 and is inserted into the limiting groove 221. That is, the limiting pins 211 and the limiting grooves 221 can limit the displacement generated by the spring force of the spring 23.

[0028] In summary, this utility model, by setting up the support platform 2, can achieve the supporting function of the handle body 6. In conjunction with the driving device and the pushing of the upper template 4, it can achieve the purpose of pushing downward, thereby changing the pulling processing process of the broach into the pushing processing process. The downward pushing force is directly applied to the handle body 6, which, together with the lower template 1, can stably clamp and limit the handle body 6, so that the handle body 6 can be pushed to process the square hole more stably.

[0029] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0030] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0033] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A tooling for machining square holes in handles with a push cutter, characterized in that: The device includes a lower template (1), on which a support platform (2) is provided for supporting the handle body (6), and a positioning mandrel (11) is provided on the lower template (1). The pre-machined hole of the handle body (6) is coaxially arranged with the positioning mandrel (11), and an avoidance hole (111) is provided in the positioning mandrel (11). The lower template (1) is also provided with two guide pillars (3), and an upper template (4) is slidably connected to the two guide pillars (3). A pusher (5) is provided between the upper template (4) and the handle body (6). The lower end of the pusher (5) abuts against the edge of the pre-machined hole on the handle body (6), and the top end of the pusher (5) abuts against the upper template (4). A connecting sleeve (41) for connecting a drive device is provided on the upper surface of the upper template (4) to drive the upper template (4) to move up and down.

2. The tooling for machining square holes in handles with a pusher according to claim 1, characterized in that: The output end of the output shaft of the drive device is located inside the connecting sleeve (41), and the output connecting sleeve (41) is threaded with not less than two bolts, which abut against the output shaft of the drive device.

3. The tooling for machining square holes in handles with a pusher according to claim 1, characterized in that: A positioning plate (42) is provided on the lower surface of the upper template (4). A positioning hole (421) is provided on the positioning plate (42) corresponding to the top end of the pusher (5). The top end of the pusher (5) is pressed against the positioning hole (421).

4. The tooling for machining square holes in handles with a pusher according to claim 1, characterized in that: The support platform (2) includes a guide block (21), on which a V-shaped block (22) is slidably connected, and the handle of the handle body (6) is supported in the V-shaped block (22).

5. The tooling for machining square holes in handles with a pusher according to claim 4, characterized in that: A spring (23) is provided at the bottom of the V-shaped block (22). The lower end of the spring (23) is fixedly connected to the lower template (1), and the top end of the spring (23) abuts against the V-shaped block (22).

6. The tooling for machining square holes in handles with a pusher according to claim 4 or 5, characterized in that: A limiting pin (211) is provided on the side wall of the guide block (21), and a limiting groove (221) is provided on the side wall of the V-shaped block (22) corresponding to the limiting pin (211). One end of the limiting groove (221) is inserted into the guide block (21) and is inserted into the limiting groove (221).

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