Broaching tool die positioning structure based on broaching machine

Abstract

The utility model discloses a broach die positioning structure based on a broaching machine, and belongs to the field of broach die positioning. Comprising a fixed disc, a guide piece and a positioning screw rod, the fixed disc is arranged on the broaching machine; a mounting groove for placing the guide piece is formed in the fixed disc; a guide groove for placing the broach is formed in the guide piece; a through groove allowing the broach to penetrate through is formed in the fixing disc. The guide groove is communicated with the through groove; a threaded hole communicated with the mounting groove is formed in the outer wall surface of the fixed disc; and when the positioning screw rod moves towards the direction of the guide piece in the threaded hole, the positioning screw rod is propped against the outer wall surface of the guide piece. The device has the beneficial effects that through the design that the positioning screw rods radially lock the guide pieces, an operator can quickly clamp or release the guide pieces only by screwing a single positioning screw rod, the guide pieces of different sizes can be replaced without disassembling a plurality of positioning screw rods, and more time is saved through the replacement mode.

Description

Broaching die positioning structure based on broaching machine Technical Field

[0001] This application relates to the field of broach die positioning, and more specifically, to a broach die positioning structure based on a broaching machine. Background Technology

[0002] The broaching die of the broaching machine performs straight broaching through the broach, which can efficiently and accurately process the internal and external surfaces of various shapes.

[0003] The patent with publication number CN206305704U discloses a broaching die for a broaching machine, which includes a mandrel. The mandrel is composed of a shoulder, a wide-diameter shaft section and a short-diameter shaft section. The shoulder has a wide-diameter shaft on one side and a short-diameter shaft section on the other side. The broaching die is placed in the straight hole of the broaching die. The shoulder is fixed to the broaching machine by bolts.

[0004] The applicant believes that the defect in the prior art is that broaches of different sizes cannot be placed in broach holes of fixed size. Therefore, workers need to replace the mandrel to ensure that the size of the broach matches the size of the broach hole. During the replacement process, multiple bolts on the shoulder need to be removed one by one, and during the installation process, multiple bolts need to be fixed one by one. This method of disassembling and replacing the shoulder is too time-consuming. Summary of the Invention

[0005] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0006] To address the technical problems mentioned in the background section, some embodiments of this application provide a broach die positioning structure based on a broaching machine, comprising: a fixed plate, a guide member, and a positioning screw; the fixed plate is disposed on the broaching machine; the fixed plate forms a mounting groove for placing the guide member; the guide member forms a guide groove for placing the broach; the fixed plate forms a through groove through which the broach passes; the guide groove communicates with the through groove; the outer wall surface of the fixed plate forms a threaded hole communicating with the mounting groove; when the positioning screw moves in the threaded hole toward the guide member, the positioning screw abuts against the outer wall surface of the guide member.

[0007] Furthermore, the guide includes: a mounting portion and an extension portion; the diameter of the mounting portion is larger than the diameter of the extension portion; the mounting portion is used to be inserted into the mounting groove; the extension portion extends in a direction away from the fixed plate, and the outer diameter of the extension portion matches the inner diameter of the workpiece so that the workpiece is placed on the extension portion.

[0008] Furthermore, a groove is formed on the outer wall surface of the mounting part; when the connection between the mounting part and the extension part is flush with the end face of the fixed plate, the end of the positioning screw passes through the threaded hole and abuts against the groove.

[0009] Furthermore, it also includes: a driving component; replacing the threaded hole with a positioning hole, and replacing the positioning screw with a positioning rod; the output end of the driving component is connected to the positioning rod.

[0010] Furthermore, the output end of the drive unit is provided with a snap-fit ​​component; the snap-fit ​​component forms a connecting hole; one end of the positioning rod opposite to the positioning hole is snapped into the connecting hole.

[0011] Furthermore, the broaching machine forms a fixing hole; the fixing plate forms a connecting part; the shape of the connecting part matches the fixing hole; the fixing plate is fixed to the broaching machine by bolts.

[0012] Furthermore, two sets of the positioning holes and the positioning rods are symmetrically arranged relative to the guide member.

[0013] The beneficial effects of this application are as follows:

[0014] The design of the radial locking guide by the positioning screw allows the operator to quickly clamp or release the guide by simply turning a single positioning screw. Different sizes of guides can be replaced without disassembling multiple positioning screws, which saves more time. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0016] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0017] In the attached diagram:

[0018] Figure 1 is an overall schematic diagram according to an embodiment of this application;

[0019] Figure 2 is a structural schematic diagram of a portion of the embodiment, mainly showing the structure of the threaded hole and other surrounding parts;

[0020] Figure 3 is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the mounting groove and the through groove;

[0021] Figure 4 is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the mounting part and the extension part;

[0022] Figure 5 is a structural schematic diagram of a portion of the embodiment, mainly showing the structure of the positioning rod, the driving component, and the snap-fit ​​component;

[0023] Figure 6 is a partial exploded view of the embodiment, mainly showing the structure of the annular slot, connecting hole and insert.

[0024] Figure label:

[0025] 1. Fixed plate; 11. Mounting groove; 12. Through groove; 13. Threaded hole; 2. Guide component; 21. Guide groove; 22. Mounting part; 221. Embedded groove; 23. Extension part; 3. Positioning screw; 4. Driving component; 5. Positioning hole; 6. Positioning rod; 61. Annular groove; 7. Snap-fit ​​component; 71. Connecting hole; 72. Insertion part; 73. Snap-fit ​​part. Detailed Implementation

[0026] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0027] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0028] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0029] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0030] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] Refer to Figure 1-4.

[0032] Example 1

[0033] A broaching die positioning structure based on a broaching machine includes: a fixed plate 1, a guide member 2, and a positioning screw 3. The guide member 2 is a rod-shaped structure. The fixed plate 1 is disposed on the broaching machine; the fixed plate 1 forms an installation groove 11 for placing the guide member 2. The guide member 2 forms a guide groove 21 for placing the broach; the fixed plate 1 forms a through groove 12 for the broach to pass through; the guide groove 21 communicates with the through groove 12. The outer wall surface of the fixed plate 1 forms a threaded hole 13 communicating with the installation groove 11; when the positioning screw 3 moves in the direction of the guide member 2 within the threaded hole 13, the positioning screw 3 abuts against the outer wall surface of the guide member 2. Replacement process: The worker can first insert the guide member 2 into the installation groove 11, rotate the guide member 2 so that the projections of the guide groove 21 and the through groove 12 on a plane perpendicular to the guide groove 21 coincide, and then tighten the positioning screw 3 clockwise to fix the guide member 2 in the installation groove 11. During disassembly, rotating the positioning screw 3 counterclockwise allows the guide component 2 to be removed from the mounting slot 11. By radially locking the guide component 2 with a single positioning screw 3, multiple positioning screws 3 do not need to be disassembled, significantly reducing the time required to replace the guide component 2.

[0034] Specifically, the guide member 2 includes a mounting portion 22 and an extension portion 23. Both the mounting portion 22 and the extension portion 23 are rod-shaped structures. The diameter of the mounting portion 22 is larger than the diameter of the extension portion 23. The mounting portion 22 is inserted into the mounting groove 11, and after the positioning screw 3 passes through the threaded hole 13, the end of the positioning screw 3 will abut against the outer wall surface of the mounting portion 22. The extension portion 23 extends away from the fixed plate 1, and the outer diameter of the extension portion 23 matches the inner diameter of the workpiece so that the workpiece is placed on the extension portion 23. During processing, the worker can place the workpiece on the extension portion 23 and then place the broach in the guide groove 21. Since the outer diameter of the extension portion 23 matches the inner diameter of the workpiece, the workpiece will not wobble when placed on the extension portion 23. Furthermore, when the broaching machine moves the broach within the guide groove 21, the cutting part on the broach will abut against the end face of the workpiece. At this time, the other end face of the workpiece abuts against the end face of the fixed plate 1. Therefore, when the broaching machine moves the broach within the guide groove 21, the cutting part will cut the workpiece until the cutting part completely passes through the workpiece.

[0035] Specifically, a groove 221 is formed on the outer wall of the mounting part 22; the groove 221 is an annular groove opened along the outer wall of the mounting part 22, used to cooperate with the end of the positioning screw 3 to enhance the fixing stability. When the connection between the mounting part 22 and the extension part 23 is flush with the end face of the fixing plate 1, the end of the positioning screw 3 passes through the threaded hole 13 and abuts against the groove 221. The groove 221 can enhance the firmness of the guide 2 and prevent the guide 2 from loosening in the mounting groove 11 during processing.

[0036] Specifically, the broaching machine forms a fixing hole; the fixing plate 1 forms a connecting part; the connecting part is a block structure. The shape of the connecting part matches that of the fixing hole. Since the projected area of ​​the fixing plate 1 on a plane perpendicular to the guide groove 21 is larger than the projected area of ​​the connecting part on the plane perpendicular to the guide groove 21, when the connecting part is inserted into the fixing hole, the fixing plate 1 is limited in all directions except for the direction away from the broaching machine. Therefore, only one bolt is needed to fix the fixing plate 1 to the broaching machine. In other embodiments, to make the overall structure stable and prevent the fixing plate 1 from shaking during processing, multiple bolts may be used.

[0037] Refer to Figure 5-6

[0038] Example 2

[0039] The difference from Embodiment 1 is that the broaching die positioning structure further includes a driving component 4; the driving component 4 is an electric push rod, a cylinder, or a hydraulic cylinder. In this embodiment, an electric push rod is preferred. The threaded hole 13 is replaced with a positioning hole 5, and the positioning screw 3 is replaced with a positioning rod 6; the output end of the driving component 4 is connected to the positioning rod 6, and the driving component 4 is used to push the positioning rod 6 to move within the positioning hole 5. When the output end of the driving component 4 pushes the positioning rod 6 to move towards the guide component 2, the end of the positioning rod 6 will abut against the outer wall surface of the guide component 2. The setting of the driving component 4 ensures the firmness of the guide component 2 within the mounting groove 11 to a certain extent, and also provides a certain degree of convenience, eliminating the need for manual operation by workers, who only need to insert the guide component 2 into the mounting groove 11.

[0040] Specifically, the driving component 4 is an electric push rod, a pneumatic cylinder, or a hydraulic cylinder. Normally, the output end of an electric push rod, pneumatic cylinder, or hydraulic cylinder does not have a threaded hole. Therefore, to fix the positioning rod 6 to the output end of the driving component 4, welding is the only normal method. If the end of the positioning rod 6 is directly fixed to the output end of the driving component 4, then the positioning rod 6 must be fixed at the center of the output end of the driving component 4 to ensure that the positioning rod 6 is evenly stressed when the driving component 4 pushes it to move. However, if the positioning rod 6 is directly welded to the output end of the driving component 4, it will be difficult to remove it from the output end of the driving component 4. Therefore, in this embodiment, a snap-fit ​​component 7 is provided at the output end of the driving component 4; the snap-fit ​​component 7 is a snap-fit ​​connector. The snap-fit ​​component 7 forms a connecting hole 71; the end of the positioning rod 6 facing away from the positioning hole 5 is snapped into the connecting hole 71. The end of the snap-fit ​​component 7 facing away from the connecting hole 71 forms an insertion part 72. The insertion part 72 is made of rubber and is integrally formed with the snap-fit ​​component, forming a slot. The slot is used for direct insertion of the output end of the drive component 4, and the output end of the drive component 4 is inserted into the slot, forming an interference fit with the snap-fit ​​component 7. The positioning rod 6 forms an annular groove 61, with arc-shaped surfaces on both sides. The snap-fit ​​component 7 contains a spring and a snap-fit ​​part 73, which is a spherical protrusion. During use, the end of the positioning rod 6 with the annular groove 61 is directly inserted into the connecting hole 71. The spring pushes the snap-fit ​​part 73 into the annular groove 61, thus fixing the positioning rod 6 in the connecting hole 71. To remove it, first push the positioning rod 6 towards the connecting hole 71. At this time, the spring is compressed, and the snap-fit ​​part 73 will contact the arc-shaped surface. Then, quickly pull the positioning rod 6 out of the connecting hole 71.

[0041] Specifically, two sets of positioning holes 5 and positioning rods 6 are symmetrically arranged relative to the guide member 2.

[0042] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A broaching die positioning structure based on a broaching machine, characterized in that, include: A fixed plate, a guide member, and a positioning screw are provided; the fixed plate is disposed on the broaching machine; the fixed plate forms a mounting groove for placing the guide member; the guide member forms a guide groove for placing the broach; the fixed plate forms a through groove through which the broach passes; the guide groove communicates with the through groove; the outer wall surface of the fixed plate forms a threaded hole communicating with the mounting groove; when the positioning screw moves in the threaded hole toward the guide member, the positioning screw abuts against the outer wall surface of the guide member.

2. The broach die positioning structure based on a broaching machine according to claim 1, characterized in that: The guide includes a mounting portion and an extension portion; the diameter of the mounting portion is larger than the diameter of the extension portion; the mounting portion is used to be inserted into the mounting groove; the extension portion extends away from the fixed plate, and the outer diameter of the extension portion matches the inner diameter of the workpiece so that the workpiece is placed on the extension portion.

3. The broaching die positioning structure based on a broaching machine according to claim 2, characterized in that: The outer wall of the mounting part forms a groove; when the connection between the mounting part and the extension part is flush with the end face of the fixed plate, the end of the positioning screw passes through the threaded hole and abuts against the groove.

4. The broach die positioning structure based on a broaching machine according to claim 1, characterized in that: The broaching machine forms a fixing hole; the fixing plate forms a connecting part; the shape of the connecting part matches the fixing hole; the fixing plate is fixed to the broaching machine by bolts.

5. The broaching die positioning structure based on a broaching machine according to claim 1, characterized in that: Also includes: Drive components; Replace the threaded hole with a positioning hole, and replace the positioning screw with a positioning rod; connect the output end of the drive component to the positioning rod.

6. The broach die positioning structure based on a broaching machine according to claim 5, characterized in that: The output end of the drive unit is provided with a snap-fit ​​component; the snap-fit ​​component forms a connecting hole; the end of the positioning rod opposite to the positioning hole is snapped into the connecting hole.

7. The broach die positioning structure based on a broaching machine according to claim 5, characterized in that: The positioning holes and the positioning rods are arranged in two sets symmetrically relative to the guide member.

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