Broach protection device for broaching machine

Abstract

The utility model provides a broach protection device for a broaching machine, which belongs to the field of broaching machine equipment and comprises a mounting seat, a sliding seat and a driving cylinder, the sliding seat is mounted on the mounting seat through a guide rail, the driving cylinder is arranged on one side of the mounting seat and used for driving the sliding seat to slide left and right along the guide rail, and a fixing plate and a protection block are arranged on the sliding seat. The fixing plate is vertically installed on the sliding seat, and the protection block is vertically installed at the upper end of the fixing plate. According to the scheme, the driving cylinder drives the protection block to move back and forth to detect the installed workpiece, whether the installation of the workpiece is accurate or not and whether the workpiece is out of tolerance or not are detected, then the problem of tool breakage in the follow-up broaching process of a broach is solved, the installation accuracy of the workpiece is effectively improved, the machining precision and efficiency of the workpiece are improved, and the production cost is reduced. And the damage to equipment and the overhaul and maintenance cost are reduced.

Description

Technical Field

[0001] The utility model relates to the field of broaching machine equipment, in particular to a broach protection device for a broaching machine. Background Art

[0002] With the development and progress of science and technology, the requirements for parts and components in various fields are becoming higher and higher. High-precision parts and components are the key to determining high-precision equipment, especially the processing of special parts requires specific equipment to achieve processing, and the broaching machine is a device that cannot be replaced by conventional machine tools. It can perform one-time broaching and forming on a specific workpiece to achieve the required precision requirements of the parts, and for parts with different characteristics, the surface of the blank needs to be broached. However, due to the different precision of the blank workpiece or the improper installation of the blank workpiece, the broaching tool has too much cutting during the processing, which is prone to chipping and breakage. Especially when making the first cut on the blank workpiece, the chipping problem is very likely to occur. If a larger processing gap is reserved, it will directly affect the processing efficiency. Therefore, it is a technical problem that needs to be solved at present. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and to provide a broach protection device for a broaching machine which is convenient for installation and detection of a workpiece to be processed, ensures the accurate installation position of the workpiece, avoids the broach breakage during subsequent broach processing, and thus protects the broach.

[0004] The technical solution of the utility model is: a broach protection device for a broaching machine, comprising a mounting seat, a sliding seat and a driving cylinder, the sliding seat is mounted on the mounting seat through a guide rail, the driving cylinder is arranged on one side of the mounting seat and is used to drive the sliding seat to slide left and right along the guide rail, the sliding seat is provided with a fixed plate and a protection block, the fixed plate is vertically mounted on the sliding seat, and the protection block is vertically mounted on the upper end of the fixed plate.

[0005] The advantage of this solution is that the protection block is driven by the driving cylinder to move back and forth on the upper surface of the installed workpiece to detect the distance between the upper surface of the workpiece and the protection block, as well as whether the installation position of the workpiece is accurate. When the protection block cannot pass through the upper surface of the installed workpiece, it means that the workpiece is not installed properly or the size of the workpiece blank is too large, so the installation position of the workpiece is adjusted or the workpiece is replaced, thereby ensuring that the feed amount of the first cut in the subsequent broaching process is within the feed range, avoiding the broach from being broken due to excessive cutting or excessive pulling force, and effectively protecting the broach.

[0006] Furthermore, at least two protection blocks are provided, and the protection blocks are installed on the long strip sliding seat at equal intervals. Preferably, the protection blocks are provided corresponding to the workpieces, and a single workpiece corresponds to a protection block, and multiple workpieces can be installed on the workstation; more preferably, 3-10 protection blocks are provided; optimally, 6 protection blocks are provided; to ensure the accuracy and efficiency of the broaching process, too few workpieces installed are not conducive to improving the processing efficiency, and too many workpieces installed will have higher requirements and accuracy for pulling force due to the longer stroke of the broach, therefore, using the number within this range can not only ensure the processing efficiency and accuracy, but also reduce the requirements for the equipment.

[0007] Furthermore, at least two protection blocks are provided, the sliding seat is matched with the protection block, and two adjacent sliding seats are connected by a connecting rod between the fixing plates. The protection block is installed through a separate sliding seat, and this method facilitates the inspection and maintenance of a single sliding seat.

[0008] Furthermore, a floating connector is provided at the telescopic end of the driving cylinder, and the floating connector is connected to the sliding seat or the fixed plate through a connecting block, thereby driving the reciprocating movement of the protection block.

[0009] Furthermore, the protection block is installed on the fixed plate through an S-shaped adjustment plate, and the adjustment plate is provided with a strip hole in the vertical direction. The first adjustment bolt on the top of the adjustment plate is used to adjust the upper and lower positions of the adjustment plate relative to the fixed plate.

[0010] Furthermore, the protection block is provided with a horizontal strip hole, the protection block is fixed to the adjustment plate by bolts, a second adjustment bolt is provided at the rear end of the adjustment plate, and the protection block can adjust the front and rear position by the second adjustment bolt.

[0011] Furthermore, a travel switch is provided on one side of the mounting seat, and the travel switch and the driving cylinder are arranged on the same side of the mounting seat. The travel switch is provided to feedback whether the left and right movement is in place.

[0012] Furthermore, a bump block matching the travel switch is provided on the sliding seat, and the bump block is provided to bump the travel switch to make the switch send a signal.

[0013] Furthermore, the bump block is L-shaped, and the lower end of the bump block is an inclined surface or an arc-shaped avoidance; preferably, the bump block has two 30° inclined surfaces, so that it can touch the switch and increase the service life of the travel switch.

[0014] Furthermore, the shape of the lower end of the protection block is matched with the upper surface of the processed part, thereby ensuring the effect of workpiece processing inspection and improving the protection of the broach.

[0015] Working principle: The rough workpiece is mounted on the fixture (not shown), the protection block is mounted on the fixed plate, the fixed plate is mounted on the sliding seat, the sliding seat is mounted on the linear guide rail, and the connecting block connects the sliding seat and the cylinder; the cylinder drives the protection block to reciprocate, and the shape of the protection block is matched with the shape of the workpiece. If the protection block cannot pass through the workpiece, it proves that the workpiece rough is out of tolerance or is not clamped in place, and the machine tool alarm cannot be used for broaching, so as to prevent the broach from heavy cutting, wrong cutting, and causing broach chipping, tool hitting, damage to the fixture and other problems; thereby protecting the broach and fixture and extending the service life of the equipment.

[0016] The utility model has the following characteristics: the driving cylinder drives the protection block to move forward and backward to detect the installed workpiece, detect whether the installation of the workpiece is accurate and whether the workpiece is out of tolerance, thereby avoiding chipping of the tool during subsequent broaching, effectively improving the installation accuracy of the workpiece, improving the processing accuracy and efficiency of the workpiece, and reducing damage to the equipment and the cost of inspection and maintenance.

[0017] The detailed structure of the present utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 - is a schematic diagram of the structure of the utility model;

[0019] Figure 2 -for Figure 1 Rear view of

[0020] Figure 3 -for Figure 1 A top view of

[0021] Figure 4 -for Figure 1 Right side view;

[0022] Figure 5 -for Figure 1 Left view of;

[0023] 1-adjusting plate, 2-workpiece, 3-protection block, 4-fixed plate, 5-mounting seat, 6-travel switch, 7-bump block, 8-second adjusting bolt, 9-connecting rod, 10-driving cylinder, 11-floating connector, 12-connecting block, 13-guide rail, 14-sliding seat, 15-first adjusting bolt. DETAILED DESCRIPTION

[0024] As shown in the accompanying drawings: a broach protection device for a broaching machine includes a mounting seat 5, a sliding seat 14 and a driving cylinder 10. The sliding seat 14 is mounted on the mounting seat 5 through a guide rail 13. The driving cylinder 10 is arranged on one side of the mounting seat 5 to drive the sliding seat 14 to slide left and right along the guide rail 13. A fixed plate 4 and a protection block 3 are provided on the sliding seat 14. The fixed plate 4 is vertically mounted on the sliding seat 14, and the protection block 3 is vertically mounted on the upper end of the fixed plate 4; preferably, the fixed plate 4 is T-shaped and is vertically fixed on the sliding seat 14 by bolts.

[0025] In this solution, the driving cylinder 10 drives the protection block 3 to move back and forth on the upper surface of the installed workpiece 2 to detect the distance between the upper surface of the workpiece 2 and the protection block 3, and whether the installation position of the workpiece 2 is accurate. When the protection block 3 cannot pass through the upper surface of the installed workpiece 2, it means that the workpiece 2 is not installed in place or the size of the workpiece 2 blank is too large, so the installation position of the workpiece 2 is adjusted or the workpiece 2 is replaced, thereby ensuring that the feed amount of the first cut in the subsequent broaching process is within the feed range, avoiding the broach from being broken due to excessive cutting or excessive pulling force, and effectively protecting the broach.

[0026] In the embodiment, at least two protective blocks 3 are provided, and the sliding seat 14 is matched with the protective block 3, and two adjacent sliding seats 14 are connected by the connecting rod 9 between the fixed plates 4. The protective block 3 is installed through a separate sliding seat 14, and this method is convenient for the inspection and maintenance of a single sliding seat 14. More preferably, 3-10 protective blocks 3 are provided; optimally, 6 protective blocks 3 are provided; to ensure the accuracy and efficiency of the broaching process, too few workpieces 2 are installed, which is not conducive to improving the processing efficiency, and too many workpieces 2 are installed because the broach has a longer stroke, which will require higher pulling force and accuracy. Therefore, using a number within this range can not only ensure processing efficiency and accuracy, but also reduce the requirements for equipment.

[0027] In another embodiment, at least two protection blocks 3 are provided, and the protection blocks 3 are installed at equal intervals on the entire long strip of sliding seat 14. Preferably, the protection blocks 3 are provided corresponding to the workpieces 2, and a single workpiece 2 corresponds to one protection block 3, and multiple workpieces 2 can be installed on the workstation; more preferably, 3-10 protection blocks 3 are provided; optimally, 6 protection blocks 3 are provided; to ensure the accuracy and efficiency of the broaching process, too few workpieces 2 installed are not conducive to improving the processing efficiency, and too many workpieces 2 installed will have higher requirements and accuracy for pulling force due to the longer stroke of the broach, therefore, using the number within this range can not only ensure the processing efficiency and accuracy, but also reduce the requirements for equipment.

[0028] In the embodiment, the protection block 3 is installed on the fixed plate 4 through the S-shaped adjustment plate 1, the adjustment plate 1 is provided with a strip hole in the vertical direction, and the first adjustment bolt 15 at the top of the adjustment plate 1 is used to adjust the upper and lower positions of the adjustment plate 1 relative to the fixed plate 4. Preferably, the protection block 3 is provided with a strip hole in the horizontal direction, the protection block 3 is fixed to the adjustment plate 1 by bolts, the rear end of the adjustment plate 1 is provided with a second adjustment bolt 8, and the protection block 3 is adjusted to the front and rear positions by the second adjustment bolt 8.

[0029] In the embodiment, the telescopic end of the driving cylinder 10 is provided with a floating connector 11, and the floating connector 11 is connected to the sliding seat 14 or the fixed plate 4 through the connecting block 12, thereby driving the reciprocating movement of the protection block 3. A travel switch 6 is also provided on one side of the mounting seat 5, and the travel switch 6 and the driving cylinder 10 are arranged on the same side of the mounting seat 5. The travel switch 6 is provided to feedback whether the left and right movement is in place. A bump block 7 matching the travel switch 6 is provided on the sliding seat 14. The bump block 7 is set to bump the travel switch so that the switch sends a signal, thereby transmitting the signal to the PLC controller to control the telescopic operation of the driving cylinder. Preferably, the bump block 7 is L-shaped, and the lower end of the bump block 7 is an inclined surface or an arc. Preferably, the bump block is two 30° inclined surfaces, so that it can bump the switch and increase the service life of the travel switch. The shape of the lower end of the protection block 3 is matched with the upper surface of the processed part. Ensure the effect of processing and detection of the workpiece 2 and improve the protection of the broach.

[0030] Working principle: the rough workpiece 2 is mounted on the fixture (not shown), the protection block 3 is mounted on the fixed plate 4, the fixed plate 4 is mounted on the sliding seat 14, the sliding seat 14 is mounted on the linear guide 13, and the connecting block 12 connects the sliding seat 14 and the cylinder; the cylinder drives the protection block 3 to reciprocate, and the shape of the protection block 3 is matched with the shape of the workpiece 2. If the protection block 3 cannot pass through the workpiece 2, it proves that the rough workpiece 2 is out of tolerance or is not clamped in place, and the machine tool alarm cannot be broached, so as to prevent the broach from heavy cutting, wrong cutting, and causing the broach to break, hit the tool, damage the fixture and other problems; thereby protecting the broach and fixture and extending the service life of the equipment.

[0031] The utility model drives the protection block 3 to move back and forth by the driving cylinder 10 to detect the installed workpiece 2, detect whether the installation of the workpiece 2 is accurate and whether the workpiece 2 is out of tolerance, thereby avoiding chipping of the tool during the subsequent broaching process, effectively improving the installation accuracy of the workpiece 2, improving the processing accuracy and efficiency of the workpiece 2, and reducing damage to the equipment and the cost of inspection and maintenance.

[0032] The above are preferred embodiments of the present invention and the technical principles used therein. For those skilled in the art, without departing from the spirit and scope of the present invention, any obvious changes such as equivalent transformation, simple replacement, etc. based on the technical solution of the present invention are within the protection scope of the present invention.

Claims

1. A broach protection device for a broaching machine, comprising a mounting seat, a sliding seat and a driving cylinder, wherein the sliding seat is mounted on the mounting seat through a guide rail, and the driving cylinder is arranged on one side of the mounting seat to drive the sliding seat to slide left and right along the guide rail, characterized in that: The sliding seat is provided with a fixing plate and a protection block. The fixing plate is vertically mounted on the sliding seat, and the protection block is vertically mounted on the upper end of the fixing plate.

2. The broach protection device for a broaching machine according to claim 1, characterized in that: At least two protection blocks are provided, and the protection blocks are installed on the long strip sliding seat at equal intervals.

3. The broach protection device for a broaching machine according to claim 1, characterized in that: At least two protection blocks are provided, the sliding seats are matched with the protection blocks, and two adjacent sliding seats are connected by a connecting rod between the fixing plates.

4. The broach protection device for a broaching machine according to claim 1, characterized in that: The telescopic end of the driving cylinder is provided with a floating connector, which is connected to the sliding seat or the fixed plate through a connecting block.

5. The broach protection device for a broaching machine according to claim 1, characterized in that: The protection block is installed on the fixed plate through an S-shaped adjustment plate. The adjustment plate is provided with a strip hole in the vertical direction. The first adjustment bolt on the top of the adjustment plate is used to adjust the upper and lower positions of the adjustment plate relative to the fixed plate.

6. The broach protection device for a broaching machine according to claim 5, characterized in that: The protection block is provided with a horizontal strip hole, the protection block is fixed to the adjustment plate by bolts, a second adjustment bolt is provided at the rear end of the adjustment plate, and the protection block can adjust the front and rear positions by the second adjustment bolt.

7. The broach protection device for a broaching machine according to claim 1, characterized in that: A travel switch is also arranged on one side of the mounting seat, and the travel switch and the driving cylinder are arranged on the same side of the mounting seat.

8. The broach protection device for a broaching machine according to claim 1, characterized in that: The sliding seat is provided with a bump block matching the travel switch.

9. The broach protection device for a broaching machine according to claim 8, characterized in that: The bump block is L-shaped, and the lower end of the bump block is an inclined surface or an arc.

10. The broach protection device for a broaching machine according to any one of claims 1 to 9, characterized in that: The shape of the lower end of the protection block is matched with the upper surface of the processed part.

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