Broaching tool mounting structure and broaching machine

Abstract

The utility model belongs to the technical field of broaching machines, and particularly relates to a broach installation structure and a broaching machine. The broach mounting structure comprises a broach holder, the upper end of the broach holder is provided with an insertion hole for accommodating a broach, the side wall of the broach holder is provided with a plurality of accommodating grooves communicated with the insertion hole, and the lower end of the broach holder is mounted on a moving seat; the outer end of the accommodating groove is lower than the inner end of the accommodating groove; a clamping groove is formed in the outer wall of the broach; the sliding sleeve is arranged on the periphery of the tool apron in a sleeving mode, and a groove is formed in the inner wall of the sliding sleeve; and the locking blocks are accommodated in the corresponding accommodating grooves. The lower end of the broach holder is connected with the moving seat, and the moving seat can be driven by the driver to ascend and descend, so that the broach holder can be driven to move relative to the sliding sleeve, the broach can be automatically switched between a locking state and an unlocking state, manual operation is not needed, and replacement of the broach is greatly facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of broaching machines, and in particular relates to a broach installation structure and a broaching machine. Background Art

[0002] A broaching machine is a machine tool that uses a broach as a tool to machine through-holes, flat surfaces, and shaped surfaces in workpieces. Broaching can achieve high dimensional accuracy and minimal surface roughness, with high productivity, making it suitable for batch and mass production.

[0003] When processing different parts, it is necessary to replace the corresponding broach. However, the broach locking mechanism of the existing broaching machine requires the operator to insert the slotted insert plate into the slot hole to lock the broach, which is inefficient. Utility Model Content

[0004] The utility model aims to provide a broach installation structure and a broaching machine, which can automatically lock or release the broach to replace manual labor.

[0005] The present application provides a broach mounting structure. The broach mounting structure includes:

[0006] The tool holder has an insertion hole for accommodating a broach at its upper end, a plurality of accommodating grooves communicating with the insertion hole on its side wall, and a lower end for mounting on a movable seat; the accommodating grooves are arranged obliquely, with their outer ends lower than their inner ends; a clamping groove is provided on the outer wall of the broach;

[0007] A sliding sleeve is sleeved on the outer periphery of the knife seat, and a groove is provided on the inner wall of the sliding sleeve;

[0008] The locking block is accommodated in the corresponding accommodation groove;

[0009] The movable seat is used to drive the knife seat to move relative to the sliding sleeve; wherein

[0010] When the tool holder moves relative to the sliding sleeve to a locked state, the inner end of the locking block is accommodated in the slot on the broach, and the outer end abuts against the inner wall of the sliding sleeve;

[0011] When the knife seat moves relative to the sliding sleeve to an unlocked state, the outer end of the locking block is accommodated in the groove on the sliding sleeve, and the inner end is located outside the clamping groove.

[0012] In one embodiment of the present application, the inclination angle of the accommodating groove to the horizontal plane is 3 to 15 degrees.

[0013] In one embodiment of the present application, the upper and lower edges of the inner end of the locking block are both provided with chamfers.

[0014] In one embodiment of the present application, the upper and lower edges of the outer end of the locking block are both provided with arc chamfers.

[0015] Accordingly, the present application provides a broaching machine, comprising:

[0016] panel;

[0017] Mobile seat, located below the panel;

[0018] A driver, used to drive the moving seat to rise and fall;

[0019] In the broach mounting structure described above, the lower end of the tool holder is mounted on the movable seat;

[0020] The spring is arranged between the lower end of the sliding sleeve and the upper end of the movable seat;

[0021] When unlocking: the driver drives the movable base to rise, the upper end of the sliding sleeve first presses against the lower surface of the panel, and the knife holder continues to rise until it is in the unlocked state; and

[0022] When locked: the driver drives the movable seat to descend, the spring presses the upper end of the sliding sleeve against the lower surface of the panel, and the knife seat continues to descend until it is in a locked state.

[0023] In one embodiment of the present application, the broaching machine further comprises:

[0024] base plate;

[0025] A plurality of columns, wherein the upper ends and lower ends of the columns are fixed to the panel and the bottom plate respectively;

[0026] The movable seat is installed on the column.

[0027] In one embodiment of the present application, the driver is installed on the upper surface of the panel, and its driving rod extends under the panel and is connected to the moving base.

[0028] The beneficial effects of the utility model are:

[0029] Different from the existing technology, the present application provides a broach mounting structure and a broaching machine. By connecting the lower end of the tool holder with the movable seat, the movable seat can be raised and lowered under the drive of the driver, thereby driving the tool holder to move relative to the sliding sleeve, so that the broach can automatically switch between the locked state and the unlocked state without manual operation, which greatly facilitates the replacement of the broach.

[0030] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 This is a schematic diagram of the broach mounting structure of the present invention in an unlocked state;

[0034] Figure 2 This is a schematic diagram of the broach mounting structure of the present invention in a locked state;

[0035] Figure 3 It is a schematic diagram of a knife holder according to a preferred embodiment of the present invention;

[0036] Figure 4 Schematic diagram of a locking block according to a preferred embodiment of the present invention;

[0037] Figure 5 It is a schematic diagram of a broaching machine of the present invention.

[0038] In the picture:

[0039] Tool holder 1, insertion hole 11, accommodating groove 12, sliding sleeve 2, groove 21, locking block 3, oblique chamfer 31, arc chamfer 32, panel 4, movable seat 5, driver 6, spring 7, bottom plate 8, column 9, broach 100, and slot 101. DETAILED DESCRIPTION

[0040] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0041] This application provides a broach mounting structure and a broaching machine, each of which is described in detail below. It should be noted that the order in which the following embodiments are described does not limit the preferred order of the embodiments of this application. Furthermore, the descriptions of each embodiment below have their own specific focus. For details not provided in one embodiment, please refer to the relevant descriptions of other embodiments.

[0042] See also Figure 1 and Figure 2 In one embodiment, the broach mounting structure includes:

[0043] The tool holder 1 has an insertion hole 11 at its upper end for accommodating a broach 100, and a plurality of accommodating grooves 12 in communication with the insertion hole 11 on its side wall. The lower end of the tool holder 1 is used for mounting on the movable seat 5. The accommodating grooves 12 are arranged at an angle, and their outer ends are lower than their inner ends. A clamping groove 101 is provided on the outer wall of the broach 100.

[0044] The sliding sleeve 2 is sleeved on the outer periphery of the tool holder 1, and the inner wall of the sliding sleeve 2 is provided with a groove 21;

[0045] The locking block 3 is accommodated in the corresponding accommodation groove 12;

[0046] The movable seat 5 is used to drive the tool holder 1 to move relative to the sliding sleeve 2;

[0047] See also Figure 2 When the tool holder 1 moves downward relative to the sliding sleeve 2 to a locked state, the inner end of the locking block 3 is accommodated in the slot 101 on the broach 100, and the outer end abuts against the inner wall of the sliding sleeve 2, thereby connecting the tool holder 1 to the broach 100. The tool holder can be driven downward by the movable seat 5 to perform the operation;

[0048] See also Figure 1 When the broach 100 needs to be replaced, the tool holder 1 moves upward relative to the sleeve 2 to the unlocked state. When the broach 100 is pulled upward, the locking block 3 is squeezed outward by the end of the groove wall of the slot 101, so that the outer end of the locking block 3 is accommodated in the groove 21 on the sleeve 2, and the inner end is located outside the slot 101, and the broach 100 can be pulled out smoothly.

[0049] Preferably, the upper and lower edges of the inner end of the locking block 3 are both provided with chamfers 31 ; the chamfers 31 can easily cooperate with the end groove wall of the card slot 101 , so that the locking block 3 can be smoothly squeezed into the groove 21 by the end groove wall of the card slot 101 .

[0050] Preferably, the upper and lower edges of the outer end of the locking block 3 are both provided with arc chamfers 32 ; the arc chamfers 32 can easily cooperate with the end groove wall of the groove 21 , so that the locking block 3 can be squeezed into the card groove 101 by the end groove wall of the groove 21 .

[0051] In this embodiment, the end groove walls of the locking groove 101 and the groove 21 can both be outward-expanded inclined surfaces, which can cooperate with the oblique chamfer 31 and the arc chamfer 32 .

[0052] In some prior art, the receiving groove 12 is horizontally disposed. When locking the broach 100, the tool holder 1 moves downward relative to the sleeve 2, and the end wall of the groove 21 of the sleeve 2 applies a certain thrust to the locking block 3. This thrust is applied along the receiving groove 12, pushing the locking block 3. The chamfer 31 on the inner side of the locking block 3 cooperates with the locking groove 101, successfully accommodating the inner end of the locking block 3 within the locking groove 101. However, when the receiving groove 12 is horizontally disposed, the thrust is sometimes insufficient to move the locking block 3, or the thrust is not sufficiently applied to move the locking block 3, causing it to become stuck.

[0053] Based on this, in this embodiment, see Figures 1 to 3 The receiving groove 12 is tilted, and its outer end is lower than the inner end, which expands the component of the thrust of the sliding sleeve 2 on the locking block 3 along the receiving groove 12, thereby facilitating the pushing of the locking block 3 into place without getting stuck.

[0054] Preferably, the inclination angle A between the receiving groove 12 and the horizontal plane is 3 to 15 degrees.

[0055] See also Figure 5 Accordingly, an embodiment of the present application further provides a broaching machine, comprising:

[0056] Panel 4;

[0057] The movable seat 5 is located below the panel 4;

[0058] A driver 6 is used to drive the moving seat 5 to move up and down;

[0059] In the broach mounting structure described above, the lower end of the tool holder 1 is mounted on the movable seat 5;

[0060] The spring 7 is arranged between the lower end of the sliding sleeve 2 and the upper end of the movable seat 5;

[0061] See also Figure 1 When unlocking: the driver 6 drives the movable seat 5 to rise; the upper end of the sliding sleeve 2 first presses against the lower surface of the panel 4, the sliding sleeve 2 stops moving, and the knife seat 1 continues to rise while squeezing the spring 7 to the unlocked state, at which time the broach 100 can be smoothly pulled out; and

[0062] See also Figure 2 , when locked: the driver 6 drives the movable seat 5 to descend; at the beginning, the spring 7 presses the upper end of the sliding sleeve 2 against the lower surface of the panel 4, and the tool holder 1 moves downward relative to the sliding sleeve 2 to a locked state. At this time, the tool holder 1 is connected to the broach 100; the movable seat 5 continues to descend, and due to the action of the spring 7, the locked state is maintained; after the parts to be processed are placed, the movable seat 5 continues to descend and the broach 100 can start operation.

[0063] Furthermore, the broaching machine further comprises: a base plate 8 ; a plurality of columns 9 , wherein the upper and lower ends of the columns 9 are respectively fixed on the panel 4 and the base plate 8 ; and the movable seat 5 is mounted on the columns 9 .

[0064] Optionally, the driver 6 is installed on the upper surface of the panel 4 , and its driving rod extends under the panel 4 and is connected to the moving base 5 .

[0065] It should be noted that the various devices selected in this application (components whose specific structures are not specified) are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0066] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection.

[0067] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate 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.

[0068] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A broach mounting structure, characterized in that: include: A tool holder (1) is provided with an insertion hole (11) for accommodating a broach (100) at its upper end, a plurality of accommodating grooves (12) communicating with the insertion hole (11) are provided on its side wall, and a lower end is used for being mounted on a movable seat (5); the accommodating grooves (12) are arranged obliquely, and the outer ends thereof are lower than the inner ends; a clamping groove (101) is provided on the outer wall of the broach (100); A sliding sleeve (2) is sleeved on the outer periphery of the knife seat (1), and a groove (21) is provided on the inner wall of the sliding sleeve (2); A locking block (3) is accommodated in a corresponding accommodation groove (12); The movable seat (5) is used to drive the knife seat (1) to move relative to the sliding sleeve (2); wherein When the tool holder (1) moves to a locked state relative to the sliding sleeve (2), the inner end of the locking block (3) is accommodated in the slot (101) on the broach (100), and the outer end abuts against the inner wall of the sliding sleeve (2); When the knife seat (1) moves to an unlocked state relative to the sliding sleeve (2), the outer end of the locking block (3) is accommodated in the groove (21) on the sliding sleeve (2), and the inner end is located outside the clamping groove (101).

2. The broach mounting structure according to claim 1, wherein: The inclination angle between the accommodating groove (12) and the horizontal plane is 3 to 15 degrees.

3. The broach mounting structure according to claim 1, characterized in that: The upper and lower edges of the inner end of the locking block (3) are both provided with chamfers (31).

4. The broach mounting structure according to claim 1, wherein: The upper and lower edges of the outer end of the locking block (3) are both provided with arc chamfers (32).

5. A broaching machine, characterized in that: include: Panel (4); A movable seat (5) is located below the panel (4); A driver (6) is used to drive the movable seat (5) to move up and down; According to the broach mounting structure according to any one of claims 1 to 4, the lower end of the tool holder (1) is mounted on the movable seat (5); A spring (7) is provided between the lower end of the sliding sleeve (2) and the upper end of the movable seat (5); wherein When unlocking: the driver (6) drives the movable seat (5) to rise, the upper end of the sliding sleeve (2) first presses against the lower surface of the panel (4), and the knife seat (1) continues to rise until it is in the unlocked state; and When locked: the driver (6) drives the movable seat (5) to descend, the spring (7) presses the upper end of the sliding sleeve (2) against the lower surface of the panel (4), and the knife seat (1) continues to descend until it is locked.

6. The broaching machine according to claim 5, characterized in that The broaching machine also includes: bottom plate (8); A plurality of columns (9), wherein the upper ends and lower ends of the columns (9) are fixed to the panel (4) and the bottom plate (8) respectively; The movable seat (5) is mounted on a column (9).

7. The broaching machine according to claim 6, characterized in that The driver (6) is installed on the upper surface of the panel (4), and its driving rod extends into the bottom of the panel (4) and is connected to the moving seat (5).

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