Small broach clamping device of broaching machine

Abstract

The utility model relates to the technical field of small broach installation, in particular to a small broach clamping device of a broaching machine. The device comprises a pull rod, one end of the outer side of the pull rod is slidably connected with a pull sleeve, a clamping structure is arranged at one end of the outer side of the pull rod, a moving structure is arranged at the other end of the outer side of the pull rod, and one end of the moving structure is fixed with the pull sleeve. According to the small broaching tool clamping device of the broaching machine, through the design of a clamping structure, the purposes that clamping is convenient and simple, clamping is stable and firm, operation is easy and smooth, the service life of a broaching tool is prolonged and the like are achieved, and therefore the labor intensity of operators is reduced, the machining efficiency is nearly doubled, and the machining cost is reduced. The safety of equipment and personnel and the effect of product drawing size and form and location tolerance are effectively protected; and through the design of the moving structure, the device can drive the clamping structure, so that the clamping and positioning operations can be automatically completed, and the stability and the accuracy of the broach in the machining process are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of small broach installation, in particular to a small broach clamping device for a broaching machine. Background Art

[0002] The small broach clamping device for broaching machines is a device for clamping broaches, which is usually used in equipment such as CNC machine tools or broaching machines. The main function of this device is to ensure that the broach maintains a stable and accurate position during the processing, thereby ensuring the processing quality and efficiency. Ensure the accuracy and stability of the clamping mechanism and the positioning mechanism to ensure the processing quality and efficiency. During use, the clamping device should be regularly inspected and maintained to ensure its normal operation and service life. When replacing the broach, follow the regulations to ensure that the clamping device can correctly clamp and position the new broach. In short, the small broach clamping device for broaching machines is an indispensable part of equipment such as CNC machine tools or broaching machines. It can ensure the stability and accuracy of the broach during the processing, thereby improving the processing quality and efficiency.

[0003] For example, the Chinese utility model patent (CN216706134U) discloses an automatic clamping device for broaches, which solves the following problems: the traditional operation method is generally to put the workpiece in, insert the broach, take out the workpiece after broaching is completed, take out the broach from the inside of the machine tool, and return to work. Each time a workpiece is broached, the tool needs to be taken out once, and it is troublesome to take the broach from the inside of the machine tool. During the tool taking process, the iron filings and cutting fluid on the broach will also fall to the ground, causing environmental pollution and affecting personal safety. The traditional operation process for multiple broaching is generally to put the workpiece in, insert the broach, complete one broaching, take the tool from the inside of the machine tool, add a gasket, put the broach in, complete the second broaching, take the tool from the inside of the machine tool, add a gasket, etc. The processing efficiency is low and the labor intensity of the operator is high.

[0004] The device includes a bed, a bump block arranged on the bed, an automatic clamping device for a broach, and a power device for driving the automatic clamping device for a broach to reciprocate and linearly move; the automatic clamping device for a broach includes a chuck body, two claws rotatably connected to the chuck body for contacting the bump block, and an elastic reset mechanism connected to the claws; the utility model realizes automatic clamping and automatic loosening of the broach with fewer components by arranging matching bump blocks, claws, and elastic reset mechanisms, and has an ingenious design concept, a simple and compact structure, and a low cost. Moreover, when broaching a workpiece at a time, there is no need to take out the tool and the tool can be returned. During the returning process, the broached workpiece can be inserted into the broach, which saves time, improves efficiency, is easy to operate, and has low labor intensity.

[0005] When using the above technology, we found the following technical problems in the prior art: the device uses a force transmission plate to clamp the card plate for fixing. Due to the large batch production task, the broach clamping device has the risk of heavy card plates and breakage of the broach. For this reason, we designed a small broach clamping device for broaching machines to provide another technical solution to the above technical problems. Utility Model Content

[0006] The utility model aims to provide a small broach clamping device for a broaching machine to solve the problems raised in the above background technology.

[0007] The utility model discloses a small broach clamping device for a broaching machine, comprising a draw rod, one end of the outer side of the draw rod is slidably connected with a draw sleeve, one end of the outer side of the draw rod is provided with a clamping structure, the other end of the outer side of the draw rod is provided with a moving structure, and one end of the moving structure is fixed to the draw sleeve.

[0008] As a preferred embodiment of the small broach clamping device for a broaching machine provided by the utility model, the clamping structure includes a support rod, a clamping plate, a spring and a cylindrical pin, four square holes are evenly opened on the outer side of the pull rod, the inner sides of the four square holes are rotatably connected with cylindrical pins, support rods are fixed to the outer sides of the four cylindrical pins, the four support rods are rotatably connected to the pull rods, clamping plates are fixed on the sides of the four support rods close to each other, springs are fixed at one end of the bottom of the four support rods, and one side of the four springs is fixed to the pull rod.

[0009] As a preferred implementation of the small broach clamping device for a broaching machine provided by the utility model, the moving structure includes a sliding mechanism and a locking mechanism.

[0010] As a preferred embodiment of the small broach clamping device for a broaching machine provided by the utility model, the sliding mechanism includes a connecting block, a screw, a connecting rod, a connecting plate, a sliding rod and a limiting cap. The bottom of the top of the pulling rod is fixed with a connecting plate, the top and bottom of the pulling sleeve are fixed with connecting blocks, one side of the connecting plate at the bottom is fixed with a sliding rod, the outer side of the sliding rod is slidably connected to one of the connecting blocks, one side of the sliding rod is fixed with a limiting cap, one side of the connecting plate at the top is fixed to a locking mechanism, the inner side of the locking mechanism is fixed with a connecting rod, one side of the connecting rod is fixed with a screw, and the screw is threadedly connected to one of the connecting blocks.

[0011] As a preferred embodiment of the small broach clamping device for a broaching machine provided by the utility model, the locking mechanism includes a motor, a first bevel gear, a second bevel gear, a fixed block, a worm and a worm wheel, wherein a motor is fixed to one side of one of the connecting plates, a first bevel gear is fixed to the output end of the motor, fixed blocks are fixed to both ends of one side of the connecting plate, a worm is rotatably connected to one side of the two fixed blocks close to each other, a second bevel gear is fixed to one side of the worm through one of the fixed blocks, the second bevel gear is meshingly connected to the first bevel gear, a worm wheel is fixed to one end of the outer side of the connecting rod, and the worm wheel is meshingly connected to the worm.

[0012] As a preferred implementation of the small broach clamping device for a broaching machine provided by the utility model, the material of the pull rod is 38CrSi, and the material of the clamping plate is 65Mn.

[0013] As a preferred implementation of the small broach clamping device for a broaching machine provided by the utility model, the inner side of the broaching sleeve is a conical surface.

[0014] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.

[0015] At the same time, through the above technical solutions, the utility model has at least the following beneficial effects:

[0016] The utility model provides a small broach clamping device for a broaching machine. The device realizes the purposes of light and simple clamping, stable and firm clamping, simple and smooth operation, and increased broach life through the design of the clamping structure, thereby reducing the labor intensity of the operator, nearly doubling the processing efficiency, and effectively protecting the safety of equipment and personnel as well as the size and shape and position tolerance of the product drawing;

[0017] The device is designed with a mobile structure so that it can drive the clamping structure to automatically complete clamping and positioning operations, thereby ensuring the stability and accuracy of the broach during processing, thereby improving processing quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a small broach clamping device for a broaching machine of the utility model;

[0019] Figure 2 It is a side view of the small broach clamping device of the broaching machine of the utility model;

[0020] Figure 3 It is a connection diagram of the drawbar and the connection plate of the small broach clamping device of the broaching machine of the utility model;

[0021] Figure 4 It is a cross-sectional view of a broaching sleeve of a small broach clamping device of a broaching machine according to the utility model;

[0022] Figure 5 This is a schematic diagram of the connection between the support rod and the clamping plate of the small broach clamping device of the broaching machine of the utility model;

[0023] Figure 6 It is a schematic diagram of the connection between the support rod and the cylindrical pin of the small broach clamping device of the broaching machine of the utility model;

[0024] Figure 7 It is a schematic diagram of the draw rod of the small broach clamping device of the broaching machine of the utility model;

[0025] Figure 8 The utility model is a schematic diagram of the connection between the worm and the worm wheel of the small broach clamping device of the broaching machine.

[0026] In the figure: 1. pull rod; 2. pull sleeve; 3. support rod; 4. clamping plate; 5. spring; 6. cylindrical pin; 7. connecting block; 8. screw; 9. connecting rod; 10. connecting plate; 11. sliding rod; 12. limit cap; 13. motor; 14. first bevel gear; 15. second bevel gear; 16. fixing block; 17. worm; 18. worm wheel. DETAILED DESCRIPTION

[0027] In order to solve this technical problem, the utility model provides a small broach clamping device for a broaching machine.

[0028] Specifically, please refer to Figure 1-Figure 8 The small broach clamping device of the broaching machine specifically includes: a draw rod 1, one end of the outer side of the draw rod 1 is slidably connected with a draw sleeve 2, one end of the outer side of the draw rod 1 is provided with a clamping structure, and the other end of the outer side of the draw rod 1 is provided with a moving structure, and one end of the moving structure is fixed to the draw sleeve 2.

[0029] The utility model provides a small broach clamping device for a broaching machine. The device realizes the purposes of light and simple clamping, stable and firm clamping, simple and smooth operation, and increased broach life through the design of the clamping structure, thereby reducing the labor intensity of the operator, nearly doubling the processing efficiency, and effectively protecting the safety of equipment and personnel as well as the size and shape and position tolerance of the product drawing;

[0030] The device is designed with a mobile structure so that it can drive the clamping structure to automatically complete clamping and positioning operations, thereby ensuring the stability and accuracy of the broach during processing, thereby improving processing quality and efficiency.

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] Reference Figure 1-Figure 8 A small broach clamping device for a broaching machine comprises a draw rod 1, one end of the outer side of the draw rod 1 is slidably connected with a draw sleeve 2, one end of the outer side of the draw rod 1 is provided with a clamping structure, the other end of the outer side of the draw rod 1 is provided with a moving structure, and one end of the moving structure is fixed to the draw sleeve 2.

[0034] The clamping structure includes a support rod 3, a clamping plate 4, a spring 5 and a cylindrical pin 6. Four square holes are evenly opened on the outside of the pull rod 1. The inner sides of the four square holes are rotatably connected with cylindrical pins 6. Support rods 3 are fixed to the outsides of the four cylindrical pins 6. The four support rods 3 are rotatably connected to the pull rod 1. A clamping plate 4 is fixed on the side of the four support rods 3 that are close to each other. A spring 5 is fixed at one end of the bottom of the four support rods 3. One side of the four springs 5 ​​is fixed to the pull rod 1, so that the clamping structure can clamp the broach.

[0035] The movable structure includes a sliding mechanism and a locking mechanism. The sliding mechanism includes a connecting block 7, a screw 8, a connecting rod 9, a connecting plate 10, a sliding rod 11 and a limiting cap 12. The connecting plates 10 are fixed at the bottom of the top of the pull rod 1, and the connecting blocks 7 are fixed at the top and bottom of the pull sleeve 2. The sliding rod 11 is fixed to one side of the bottom connecting plate 10. The outer side of the sliding rod 11 is slidably connected to one of the connecting blocks 7. The limiting cap 12 is fixed to one side of the sliding rod 11. One side of the top connecting plate 10 is fixed to the locking mechanism. The connecting rod 9 is fixed to the inner side of the locking mechanism. The screw 8 is fixed to one side of the connecting rod 9. The screw 8 is threadedly connected to one of the connecting blocks 7, so that the movable structure can drive the pull sleeve 2 to move.

[0036] The locking mechanism includes a motor 13, a first bevel gear 14, a second bevel gear 15, a fixed block 16, a worm 17 and a worm wheel 18, wherein a motor 13 is fixed to one side of one connecting plate 10, a first bevel gear 14 is fixed to the output end of the motor 13, fixed blocks 16 are fixed to both ends of one side of the connecting plate 10, a worm 17 is rotatably connected to one side of the two fixed blocks 16 close to each other, a second bevel gear 15 is fixed to one side of the worm 17 passing through one of the fixed blocks 16, the second bevel gear 15 is meshingly connected to the first bevel gear 14, a worm wheel 18 is fixed to one end of the outer side of the connecting rod 9, the worm wheel 18 is meshingly connected to the worm 17, so that the locking mechanism can limit the rotation of the connecting rod 9.

[0037] The material of the pull rod 1 is 38CrSi, and the material of the clamping plate 4 is 65Mn, so that the device can be used stably.

[0038] The inner side of the pull sleeve 2 is a conical surface, so that the support rod 3 can slide through the pull sleeve 2 to rotate.

[0039] The utility model provides a small broach clamping device for a broaching machine. The device achieves the purposes of light and simple clamping, stable and firm clamping, simple and smooth operation, and increased broach life through the design of the clamping structure, thereby reducing the labor intensity of the operator, increasing the processing efficiency by nearly one-fold, and effectively protecting the safety of equipment and personnel as well as the size and shape and position tolerances of the product drawing; the device is designed with a mobile structure so that the device can drive the clamping structure to automatically complete the clamping and positioning operations, thereby ensuring the stability and accuracy of the broach during the processing, thereby improving the processing quality and efficiency.

[0040] The use process of the small broach clamping device for a broaching machine provided by the utility model is as follows: when the broach needs to be installed, the user puts the broach into the inner side of the four clamping plates 4, and the user turns on the motor 13 to rotate, and the output end of the motor 13 drives the first bevel gear 14 to rotate. Since one side of the first bevel gear 14 is meshedly connected with the second bevel gear 15, the rotation of the first bevel gear 14 drives the second bevel gear 15 to rotate, and the rotation of the second bevel gear 15 drives the worm 17 to rotate. Since the top of the worm 17 is meshedly connected with the worm wheel 18, the rotation of the worm 17 drives the worm wheel 18 to rotate, and then drives the connecting rod 9 to rotate. Since a screw rod 8 is fixed on one side of the connecting rod 9, and since the outer side of the screw rod 8 is threadedly connected to one of the connecting blocks 7, the rotation of the screw rod 8 drives the connecting block 7 on the screw 8. , and then drives the pull sleeve 2 and the other connecting block 7 to slide on the outside of the slide rod 11, so that the pull sleeve 2 slides on the outside of the pull rod 1. When sliding, since the inner side of the pull sleeve 2 is a conical surface, the pull sleeve 2 slides, so that the pull sleeve 2 can slide on one side of the support rod 3, and then drives the support rod 3 to rotate along the cylindrical pin 6, and then compresses the spring 5 while separating the clamping plate 4, so that the broach can be clamped freely, thereby ensuring the stability and accuracy of the broach during the processing, thereby improving the processing quality and efficiency. In summary, the utility model is simple to operate, convenient and quick to load and unload the tool, saves time and effort, reduces the operator's labor, thereby increasing the product processing efficiency by nearly one-fold, and saving labor costs by 30%, which opens up ideas and lays a foundation for large-scale product processing methods.

Claims

1. A small broach clamping device for a broaching machine, comprising a drawbar (1), characterized in that: One end of the outer side of the pull rod (1) is slidably connected to a pull sleeve (2), one end of the outer side of the pull rod (1) is provided with a clamping structure, and the other end of the outer side of the pull rod (1) is provided with a moving structure, and one end of the moving structure is fixed to the pull sleeve (2); the clamping structure comprises a support rod (3), a clamping plate (4), a spring (5) and a cylindrical pin (6), four square holes are evenly opened on the outer side of the pull rod (1), the inner sides of the four square holes are rotatably connected to the cylindrical pins (6), the outer sides of the four cylindrical pins (6) are fixed with support rods (3), the four support rods (3) are rotatably connected to the pull rod (1), the sides of the four support rods (3) close to each other are fixed with clamping plates (4), one end of the bottom of the four support rods (3) is fixed with springs (5), and one side of the four springs (5) is fixed to the pull rod (1); The movable structure comprises a sliding mechanism and a locking mechanism; the sliding mechanism comprises a connecting block (7), a screw (8), a connecting rod (9), a connecting plate (10), a sliding rod (11) and a limiting cap (12); the top and bottom of the pull rod (1) are both fixed with connecting plates (10); the top and bottom of the pull sleeve (2) are both fixed with connecting blocks (7); one side of the connecting plate (10) at the bottom is fixed with a sliding rod (11); the outer side of the sliding rod (11) is slidably connected to one of the connecting blocks (7); the limiting cap (12) is fixed to one side of the sliding rod (11); the top of the connecting plate (10) is fixed to one side of the locking mechanism; the inner side of the locking mechanism is fixed with a connecting rod (9); the one side of the connecting rod (9) is fixed with a screw (8); the screw (8) is threadedly connected to one of the connecting blocks (7).

2. The small broach clamping device for a broaching machine according to claim 1, characterized in that: The locking mechanism comprises a motor (13), a first bevel gear (14), a second bevel gear (15), a fixing block (16), a worm (17) and a worm wheel (18), wherein the motor (13) is fixed to one side of one of the connecting plates (10), the first bevel gear (14) is fixed to the output end of the motor (13), fixing blocks (16) are fixed to both ends of one side of the connecting plate (10), the worm (17) is rotatably connected to one side of the two fixing blocks (16) close to each other, the second bevel gear (15) is fixed to one side of the worm (17) passing through one of the fixing blocks (16), the second bevel gear (15) and the first bevel gear (14) are meshingly connected, and the worm wheel (18) is fixed to one end of the outer side of the connecting rod (9), the worm wheel (18) and the worm (17) are meshingly connected.

3. The small broach clamping device for a broaching machine according to claim 1, characterized in that: The material of the pull rod (1) is 38CrSi, and the material of the clamping plate (4) is 65Mn.

4. The small broach clamping device for a broaching machine according to claim 1, characterized in that: The inner side of the pull sleeve (2) is a conical surface.

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