Internal spline broaching machine

Abstract

The utility model provides an internal spline broaching machine, which belongs to the technical field of broaching machines, and comprises a first mounting part for mounting a broach and a second mounting part for mounting a workpiece to be processed, and the first mounting part and the second mounting part are oppositely arranged; the broaching tool is provided with a working end extending towards the direction of the second mounting part; the telescopic driving piece is provided with a telescopic end capable of telescopically moving in the direction close to or away from the first mounting part, and the telescopic end is suitable for being connected with a to-be-machined piece; the positioning guide column and the positioning guide hole are arranged on the first mounting part and the telescopic end of the telescopic driving part respectively, and when the telescopic end of the telescopic driving part moves towards the direction close to the first mounting part, the positioning guide column is inserted into the positioning guide hole; when the internal spline broaching machine works, the telescopic driving piece moves downwards, the positioning guide column is inserted into the positioning guide hole, at the moment, the broaching tool machines a workpiece to be machined, and after machining is completed, the telescopic driving piece is far away from the broaching tool on the first installation part, and the positioning guide column is pulled out of the positioning guide hole.

Description

Technical Field

[0001] The utility model relates to the technical field of broaching machines, in particular to an internal spline broaching machine. Background Art

[0002] A broaching machine is a machine tool that uses a broach as a tool to process through holes, planes and formed surfaces of workpieces. As a vertical internal broaching machine, the blind hole internal spline broaching machine is easy to automate, has a short working cycle, and the weight of the broach does not affect the processing quality.

[0003] In the actual production process of the existing vertical internal broaching machine, it is difficult to ensure that the broaching force generated by the oil cylinder and the force exerted by the broach on the product are always in a straight line. On the one hand, there may be a slight offset in the oil cylinder during its own extension and contraction process, resulting in unstable broaching force; on the other hand, the force between the broach and the workpiece may be offset due to friction, impact and other reasons during the contact process between the broach and the workpiece. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the defect of the internal spline broaching machine in the prior art that the broaching force generated when the cylinder moves and the force of the broaching tool on the product are difficult to always keep in a straight line, thereby providing an internal spline broaching machine.

[0005] In order to solve the above technical problems, the utility model provides an internal spline broaching machine, comprising: a first mounting portion for mounting a broach and a second mounting portion for mounting a workpiece to be processed, wherein the first mounting portion and the second mounting portion are arranged opposite to each other;

[0006] A broach, disposed on the first mounting portion, the broach having a working end extending toward the second mounting portion;

[0007] A telescopic driving member, arranged on the second mounting portion, the telescopic driving member having a telescopic end capable of telescopically moving toward or away from the first mounting portion, the telescopic end being suitable for connecting a workpiece to be processed;

[0008] A positioning guide column or a positioning guide hole is provided on the telescopic end of the telescopic driving member, and a positioning guide column or a positioning guide hole that matches with the positioning guide column or the positioning guide hole on the telescopic end of the telescopic driving member is provided on the first mounting portion. When the telescopic end of the telescopic driving member moves toward a direction close to the first mounting portion, the positioning guide column is inserted into the positioning guide hole, and when the telescopic end of the telescopic driving member moves toward a direction away from the first mounting portion, the positioning guide column is pulled out of the positioning guide hole.

[0009] Optionally, the positioning guide column is arranged on the telescopic end of the telescopic driving member, and the positioning guide hole is arranged on the first mounting portion;

[0010] And / or, the positioning guide hole is arranged on the telescopic end of the telescopic driving member, and the positioning guide column is arranged on the first mounting portion.

[0011] Optionally, at least two first guide sleeves are symmetrically arranged on both sides of the broach, the first guide sleeves extend toward the telescopic driving member, and the positioning guide holes are formed in the first guide sleeves.

[0012] Optionally, at least two positioning guide columns suitable for being inserted into the first guide sleeve are symmetrically arranged on both sides of the workpiece to be processed at the telescopic end of the telescopic driving member.

[0013] Optionally, a length of the positioning guide column extending toward the first mounting portion is greater than a length of the workpiece to be processed extending toward the first mounting portion.

[0014] Optionally, at least two slidable guide rods are symmetrically provided on the second mounting portion on both sides of the telescopic driving member, and the telescopic end of the telescopic driving member is connected to the guide rods.

[0015] Optionally, a second guide sleeve slidably matched with the guide rod is arranged in the second mounting portion.

[0016] Optionally, a connecting plate for connecting to the workpieces to be processed is provided on the telescopic end of the telescopic driving member, and the connecting plate is suitable for connecting at least two of the workpieces to be processed.

[0017] Optionally, a chuck for mounting the broach is connected to the first mounting portion, and a plurality of clamping positions for mounting the broach are evenly arranged along the circumference of the chuck.

[0018] Optionally, the chuck is connected to a rotation driving device, and the rotation driving device is used to drive the chuck to rotate so that the plurality of broaches are opposite to the workpiece to be processed on the telescopic driving member in turn.

[0019] The technical solution of this utility model has the following advantages:

[0020] 1. The internal spline broaching machine provided by the utility model installs the broach on the first mounting part, and installs the workpiece to be processed on the telescopic end of the telescopic driving member of the second mounting part. During operation, the telescopic driving member moves downward, and the positioning guide column is inserted into the positioning guide hole. At this time, the broach processes the workpiece to be processed. After the processing is completed, the telescopic driving member is away from the broach on the first mounting part, and the positioning guide column is pulled out of the positioning guide hole, so that when the broach is processing the workpiece to be processed, the force in the driving direction of the telescopic driving member and the force of the broach on the workpiece to be processed are always kept in a straight line.

[0021] 2. In the internal spline broaching machine provided by the utility model, the positioning guide column is arranged on the telescopic end of the telescopic driving member, and the positioning guide hole is arranged on the first mounting portion;

[0022] And / or, the positioning guide hole is arranged on the telescopic end of the telescopic driving member, and the positioning guide column is arranged on the first mounting portion, so that the positioning guide column and the positioning guide hole cooperate.

[0023] 3. The internal spline broaching machine provided by the utility model has at least two first guide sleeves symmetrically arranged on both sides of the broach, and the first guide sleeves extend in the direction of the telescopic drive member. The positioning guide hole is formed in the first guide sleeve, so that after the positioning guide column moves close to the first mounting portion, the first guide sleeves on both sides can be installed on the positioning guide column, so that the broach and the workpiece to be processed are always in the same straight line during the broaching process.

[0024] 4. The internal spline broaching machine provided by the utility model has at least two positioning guide columns suitable for being inserted into the first guide sleeve symmetrically arranged on the telescopic end of the telescopic driving member on both sides of the workpiece to be processed, so as to maintain stability during processing when processing the workpiece to be processed.

[0025] 5. In the internal spline broaching machine provided by the utility model, the length of the positioning guide column extending toward the first mounting portion is greater than the length of the workpiece to be processed extending toward the first mounting portion, so that during the downward movement, the positioning guide column can be first connected to the first guide sleeve to ensure the accuracy during processing.

[0026] 6. In the internal spline broaching machine provided by the utility model, at least two slidable guide rods are symmetrically provided on the second mounting portion on both sides of the telescopic driving member, and the telescopic end of the telescopic driving member is connected to the guide rods, so that when the telescopic driving member moves downward, the direction of the force can be ensured to be in the vertical direction without deviation.

[0027] 7. In the internal spline broaching machine provided by the utility model, a second guide sleeve is provided in the second mounting portion, which is slidably matched with the guide rod, so as to fix the guide rod and prevent wear in the hole due to long-term use of the extension.

[0028] 8. In the internal spline broaching machine provided by the utility model, a connecting plate for connecting the workpieces to be processed is provided on the telescopic end of the telescopic driving member, and the connecting plate is suitable for connecting at least two of the workpieces to be processed, so that the workpieces to be processed can be stably installed on the telescopic end.

[0029] 9. In the internal spline broaching machine provided by the utility model, a chuck for setting the broach is connected to the first mounting part, and a plurality of clamping positions for installing the broach are evenly arranged along the circumference of the chuck, so that the broach can be stably mounted on the chuck of the first mounting part.

[0030] 10. In the internal spline broaching machine provided by the utility model, the chuck is connected to a rotating drive device, and the rotating drive device is used to drive the chuck to rotate so that the plurality of broaches are sequentially opposite to the workpiece to be processed on the telescopic drive member, thereby allowing the broaches on the chuck to rotate to process the workpiece to be processed. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] 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 creative work.

[0032] Figure 1 A three-dimensional diagram of a specific implementation of an internal spline broaching machine provided in an embodiment of the utility model;

[0033] Figure 2 for Figure 1 A three-dimensional view of the second mounting portion.

[0034] Description of reference numerals:

[0035] 1. Broach; 2. First mounting part; 3. Workpiece to be processed; 4. Second mounting part; 5. Telescopic driving part; 6. Telescopic end; 7. Positioning guide column; 8. First guide sleeve; 9. Guide rod; 10. Second guide sleeve; 11. Connecting plate; 12. Chuck; 13. Clamping position; 14. Rotation driving device; 15. Hydraulic expansion sleeve. DETAILED DESCRIPTION

[0036] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0040] like Figure 1 , Figure 2 As shown, a specific implementation of the internal spline broaching machine provided in this embodiment includes: a first mounting portion 2 for mounting a broach 1 and a second mounting portion 4 for mounting a workpiece 3 to be processed, wherein the first mounting portion 2 and the second mounting portion 4 are arranged opposite to each other; a broach 1 is arranged on the first mounting portion 2, and the broach 1 has a working end extending toward the second mounting portion 4; a telescopic driving member 5 is arranged on the second mounting portion 4, and the telescopic driving member 5 has a telescopic end 6 that can be telescopically moved toward or away from the first mounting portion 2, and the telescopic end 6 is suitable for connecting the workpiece 3 to be processed; a positioning guide column 7 or a positioning guide hole is arranged on the first mounting portion 2, and a positioning guide column 7 or a positioning guide hole that matches the positioning guide column 7 or the positioning guide hole on the first mounting portion 2 is arranged on the telescopic end 6 of the telescopic driving member 5. When the telescopic end 6 of the telescopic driving member 5 moves toward the direction close to the first mounting portion 2, the positioning guide column 7 is inserted into the positioning guide hole, and when the telescopic end 6 of the telescopic driving member 5 moves toward the direction away from the first mounting portion 2, the positioning guide column 7 is pulled out of the positioning guide hole.

[0041] In the internal spline broaching machine provided by the utility model, the broach 1 is installed on the first mounting part 2, and the workpiece 3 to be processed is installed on the telescopic end 6 of the telescopic driving member 5 of the second mounting part 4. During operation, the telescopic driving member 5 moves downward, and the positioning guide column 7 is inserted into the positioning guide hole. At this time, the broach 1 processes the workpiece 3 to be processed. After the processing is completed, the telescopic driving member 5 is away from the broach 1 on the first mounting part 2, and the positioning guide column 7 is pulled out of the positioning guide hole, so that when the broach 1 is processing the workpiece 3 to be processed, the force in the driving direction of the telescopic driving member 5 and the force of the broach 1 on the workpiece 3 to be processed are always kept in a straight line.

[0042] like Figure 1 As shown, in the internal spline broaching machine provided in this embodiment, the positioning guide column 7 is arranged on the telescopic end 6 of the telescopic driving member 5, and the positioning guide hole is arranged on the first mounting portion 2; in this way, when the telescopic end 6 of the telescopic driving member 5 approaches toward the first mounting portion 2, the lower end of the positioning guide column 7 extends into the positioning guide hole.

[0043] Of course, the above description is not restrictive, and in some alternative embodiments, the positioning guide hole can also be set on the telescopic end 6 of the telescopic driving member 5, and the positioning guide column 7 can be set on the first mounting portion 2; in this way, when the telescopic end 6 of the telescopic driving member 5 approaches the first mounting portion 2, the upper end of the positioning guide column 7 extends into the positioning guide hole.

[0044] In addition, at least one positioning guide column 7 and at least one positioning guide hole may be provided on the telescopic end 6 of the telescopic driving member 5 and on the first mounting portion 2; in this way, when the telescopic end 6 of the telescopic driving member 5 approaches the first mounting portion 2, the lower end of the positioning guide column 7 on the telescopic end 6 of the telescopic driving member 5 extends into the positioning guide hole on the first mounting portion 2, and the upper end of the positioning guide column 7 on the first mounting portion 2 extends into the positioning guide hole on the telescopic end 6 of the telescopic driving member 5.

[0045] like Figure 1 As shown, in the internal spline broaching machine provided in this embodiment, at least two first guide sleeves 8 are symmetrically arranged on both sides of the broach 1, the first guide sleeves 8 extend toward the direction of the telescopic driving member 5, and the positioning guide hole is formed in the first guide sleeve 8. In this way, after the positioning guide column 7 moves close to the first mounting portion 2, the first guide sleeves 8 on both sides can be sleeved on the positioning guide column 7, so that the broach 1 and the workpiece 3 to be processed are always on the same straight line during the broaching process.

[0046] Of course, the above description is not restrictive. In some alternative embodiments, the first guide sleeve 8 can be omitted or more can be provided. When the first guide sleeve 8 is omitted, the positioning guide hole can be provided by directly providing through holes on both sides of the broach 1.

[0047] like Figure 1 As shown, in the internal spline broaching machine provided in this embodiment, at least two positioning guide columns 7 suitable for being inserted into the first guide sleeve 8 are symmetrically arranged on the telescopic end 6 of the telescopic driving member 5 on both sides of the workpiece 3 to be processed. In this way, when the telescopic end 6 of the telescopic driving member 5 approaches the first mounting portion 2, the positioning guide columns 7 cooperate with the first guide sleeve 8, so that the stability during processing can be maintained when processing the workpiece 3 to be processed.

[0048] Of course, the above description is not restrictive. In some alternative embodiments, a plurality of positioning guide columns 7 may be provided for use in conjunction with the first guide sleeve 8 .

[0049] like Figure 1 As shown, in the internal spline broaching machine provided by this embodiment, the length of the positioning guide column 7 extending in the direction of the first mounting portion 2 is greater than the length of the workpiece 3 to be processed extending in the direction of the first mounting portion 2. Such an arrangement enables the positioning guide column 7 to be connected to the first guide sleeve 8 first during the downward movement, thereby ensuring the accuracy during processing.

[0050] Of course, the above description is not restrictive. In some alternative embodiments, the length of the positioning guide column 7 extending toward the first mounting portion 2 may also be equal to the length of the workpiece 3 extending toward the first mounting portion 2.

[0051] like Figure 2 As shown, in the internal spline broaching machine provided in this embodiment, at least two slidable guide rods 9 are symmetrically provided on the second mounting portion 4 on both sides of the telescopic driving member 5, and the telescopic end 6 of the telescopic driving member 5 is connected to the guide rods 9. Such an arrangement ensures that the direction of the force is in the vertical direction during the downward movement of the telescopic driving member 5 without offset.

[0052] Of course, the above description is not restrictive, and in some alternative embodiments, the guide rod 9 may also be fixed and non-sliding.

[0053] like Figure 2 As shown, in the internal spline broaching machine provided in this embodiment, a second guide sleeve 10 is provided in the second mounting portion 4 and is slidably matched with the guide rod 9, so as to fix the guide rod 9 and prevent wear in the hole due to long-term use.

[0054] Of course, the above description is not restrictive, and in some alternative embodiments, the second guide sleeve 10 may also be slidably arranged.

[0055] like Figure 2 As shown, in the internal spline broaching machine provided in this embodiment, a connecting plate 11 for connecting the workpiece 3 to be processed is provided on the telescopic end 6 of the telescopic driving member 5, and the connecting plate 11 is suitable for connecting at least two of the workpieces 3 to be processed. Specifically, a hydraulic expansion sleeve 15 is used to connect the connecting plate 11 at the upper end and the workpiece 3 to be processed at the lower end. In this way, the workpiece 3 to be processed can be stably mounted on the telescopic end 6.

[0056] Of course, the above description is not restrictive. In some alternative embodiments, the connecting plate 11 may not be provided, and the workpiece 3 to be processed may be directly fixed to the telescopic driving member 5 .

[0057] like Figure 1 As shown, in the internal spline broaching machine provided in this embodiment, the first mounting portion 2 is connected with a chuck 12 for mounting the broach 1, and the chuck 12 is evenly provided with a plurality of clamping positions 13 for mounting the broach 1 along the circumferential direction. With such arrangement, the broach 1 can be stably mounted on the chuck 12 of the first mounting portion 2.

[0058] Of course, the above description is not restrictive, and in some alternative embodiments, the broach 1 can be fixed on the chuck 12 in other forms.

[0059] like Figure 1 As shown, in the internal spline broaching machine provided in this embodiment, the chuck 12 is connected to a rotation drive device 14, and the rotation drive device 14 is used to drive the chuck 12 to rotate so that the plurality of broaches 1 are sequentially opposite to the workpiece 3 to be processed on the telescopic drive member 5. In this way, the broaches 1 on the chuck 12 can rotate to process the workpiece 3 to be processed.

[0060] Of course, the above description is not restrictive, and in some alternative embodiments, the chuck 12 may also rotate in other forms during operation.

[0061] like Figure 1 As shown, in the internal spline broaching machine provided in this embodiment, the positions of the first guide sleeve 8 and the positioning guide column 7 can be interchanged, as long as it can be ensured that the first guide sleeve 8 and the positioning guide column can be used in conjunction with each other on both sides of the broach 1 to process the workpiece 3 during broaching.

[0062] Usage process:

[0063] First, place the broach 1 and the workpiece 3 to be processed on the clamping position 13 of the chuck 12 and the hydraulic expansion sleeve 15 respectively, then move the telescopic drive member 5 downward, and the telescopic end 6 of the telescopic drive member 5 drives the guide rods 9 located on both sides of the telescopic drive member 5 to slide downward in the second guide sleeve 10 to ensure the accuracy of the vertical movement of the telescopic drive member 5. At the same time, through the fixed connection between the telescopic end 6 and the positioning guide column 7, the positioning guide column 7 is driven to first be inserted into the first guide sleeve 8 located on the first station of the chuck 12, thereby ensuring the stability of the broach 1 when processing the workpiece 3 to be processed. When this process is completed, the telescopic drive member 5 moves up, driving the workpiece 3 to be processed to move up, and then turn on the rotating drive device 14 to rotate the chuck 12, and place the workpiece 3 to be processed on the second station of the chuck 12. Repeat the above steps to complete the processing of the second process until the six steps are finally completed and the workpiece 3 to be processed is completed.

[0064] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the present utility model.

Claims

1. An internal spline broaching machine, characterized in that: include: A first mounting portion (2) for mounting the broach (1) and a second mounting portion (4) for mounting the workpiece (3) to be processed, wherein the first mounting portion (2) and the second mounting portion (4) are arranged opposite to each other; A broach (1) is arranged on the first mounting portion (2), and the broach (1) has a working end extending in a direction toward the second mounting portion (4); a telescopic driving member (5) arranged on the second mounting portion (4), the telescopic driving member (5) having a telescopic end (6) capable of telescopically moving in a direction close to or away from the first mounting portion (2), the telescopic end (6) being suitable for connecting a workpiece (3) to be processed; The telescopic end (6) of the telescopic driving member (5) is provided with a positioning guide column (7) or a positioning guide hole, and the first mounting portion (2) is provided with a positioning guide column (7) or a positioning guide hole that matches the positioning guide column (7) or the positioning guide hole on the telescopic end (6) of the telescopic driving member (5); when the telescopic end (6) of the telescopic driving member (5) moves in a direction approaching the first mounting portion (2), the positioning guide column (7) is inserted into the positioning guide hole; when the telescopic end (6) of the telescopic driving member (5) moves in a direction away from the first mounting portion (2), the positioning guide column (7) is pulled out of the positioning guide hole.

2. The internal spline broaching machine according to claim 1, characterized in that: The positioning guide column (7) is arranged on the telescopic end (6) of the telescopic driving member (5), and the positioning guide hole is arranged on the first mounting portion (2); And / or, the positioning guide hole is arranged on the telescopic end (6) of the telescopic driving member (5), and the positioning guide column (7) is arranged on the first mounting portion (2).

3. The internal spline broaching machine according to claim 2, characterized in that: At least two first guide sleeves (8) are symmetrically arranged on both sides of the broach (1), the first guide sleeves (8) extend in the direction of the telescopic drive member (5), and the positioning guide hole is formed in the first guide sleeve (8).

4. The internal spline broaching machine according to claim 3, characterized in that: At least two positioning guide columns (7) suitable for being inserted into the first guide sleeve (8) are symmetrically arranged on the telescopic end (6) of the telescopic driving member (5) on both sides of the workpiece (3) to be processed.

5. The internal spline broaching machine according to claim 4, characterized in that: The length of the positioning guide column (7) extending in the direction toward the first mounting portion (2) is greater than the length of the workpiece (3) to be processed extending in the direction toward the first mounting portion (2).

6. The internal spline broaching machine according to claim 1, characterized in that: At least two slidable guide rods (9) are symmetrically arranged on the second mounting portion (4) on both sides of the telescopic driving member (5), and the telescopic end (6) of the telescopic driving member (5) is connected to the guide rods (9).

7. The internal spline broaching machine according to claim 6, characterized in that: A second guide sleeve (10) is provided in the second mounting portion (4) and is slidably matched with the guide rod (9).

8. The internal spline broaching machine according to any one of claims 1 to 7, characterized in that: A connecting plate (11) for connecting the workpieces (3) to be processed is provided on the telescopic end (6) of the telescopic driving member (5), and the connecting plate (11) is suitable for connecting at least two of the workpieces (3) to be processed.

9. The internal spline broaching machine according to any one of claims 1 to 7, characterized in that: The first mounting portion (2) is connected to a chuck (12) for mounting the broach (1), and the chuck (12) is evenly provided with a plurality of clamping positions (13) for mounting the broach (1) along the circumference.

10. The internal spline broaching machine according to claim 9, characterized in that: The chuck (12) is connected to a rotation drive device (14), and the rotation drive device (14) is used to drive the chuck (12) to rotate so that the plurality of broaches (1) are sequentially opposite to the workpiece (3) to be processed on the telescopic drive member (5).

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