CN203817885U - Main shaft tool changing mechanism centering inspection tool - Google Patents

Abstract

The utility model relates to the technical field of mechanical processing detection, and provides a tool change mechanism for a main shaft with a neutral inspection tool, the neutral inspection tool and a pull nail are clamped and fixed in the spindle taper hole, and the pull nail is passed through the broach The claw is connected with the pull rod, and the end of the pull rod is connected with the loosening cylinder. The neutral inspection tool includes a taper cup, a clamping sleeve and a mandrel. The joint part of the holding sleeve is suitable, the taper cup and the clamping sleeve are respectively provided with through holes for inserting the mandrel, the through hole of the tapered cup away from the end of the clamping sleeve is provided with an internal thread, and the tapered cup passes through the The internal thread is clamped with the pull nail, and the clamping sleeve is clamped by the tool changing manipulator to adjust the position and coaxiality of the taper hole of the main shaft. The utility model completes the detection of coaxiality between the tool changing manipulator and the taper hole of the main shaft, and is easy to operate, thereby avoiding the collision and friction between the taper hole of the main shaft and the tool handle during tool changing, and avoiding the wear of the taper hole of the main shaft.

Description

A neutral inspection tool for spindle tool change mechanism

technical field

The utility model belongs to the technical field of mechanical processing detection, in particular to a neutral inspection tool for a main shaft tool changing mechanism.

Background technique

Among the machine tools of the machining center, about 70% of the main shafts are classified by the shank structure, and 30% are the main shafts of the HSK shank structure. The precision of the main shaft of the machining center is the key to the processing quality of the product. Among them, the BT handle is a handle structure of the Japanese standard series. The taper handle is a solid structure with a taper of 7:24. The tail end is equipped with a standard pull stud for clamping; the HSK handle is a kind of handle of the German standard series. Structure, the tapered shank is a hollow structure with a taper of 1:10, which is clamped by pulling the claws into the inner hole of the shank.

During the machining process, the most common form of wear of the spindle taper hole is the failure of the spindle, and the wear of the spindle taper hole is mainly caused by the contact and collision between the spindle taper hole and the tool handle during tool change. Reducing the collision friction between the spindle taper hole and the tool holder is the key to reducing the wear of the spindle taper hole.

At present, for the HSK tool holder spindle, the standard HSK tool cup three-piece set is generally used for alignment detection, so that there is a good position between the spindle taper hole and the tool changer manipulator. The specific process is as follows:

First, place part A of the three-piece standard HSK knife cup set in the taper hole of the main shaft for tension, place part B on the claw of the tool changing manipulator, manually operate the tool changing manipulator in a single step, move it to the tool changing position of the main shaft, hold it Insert part C into the inner holes of part B and part A, and test whether the insertion and extraction are smooth, so as to judge whether the position of the tool changing manipulator and the spindle are aligned.

The above three-piece HSK knife cup set is decomposed on the basis of the original HSK tool holder. Due to the limitation of the tool holder structure and clamping method, it can only be applied to the spindle of the HSK tool holder structure, while the BT tool holder spindle alignment detection It is a blank, and the centering between the spindle taper hole and the tool changer is only based on the visual and hand feeling. The centering accuracy is not accurate, and the coaxiality between the tool handle and the spindle taper hole cannot be guaranteed, and it is easy to cause the top of the tool handle to be out of alignment with the tool changer. The collision friction of the spindle taper hole will cause the spindle taper hole to wear.

Utility model content

The purpose of this utility model is to provide a kind of tool change mechanism for the main shaft with a neutral inspection tool, aiming at solving the problem that the centering detection of the main shaft of the BT tool holder and the tool changing manipulator in the prior art is realized by eye and hand, and the centering accuracy is not high. Accurate, the coaxiality between the tool handle and the spindle taper hole cannot be guaranteed, and it is easy to cause collision and friction between the top of the tool handle and the spindle taper hole, resulting in the wear of the spindle taper hole.

The utility model is achieved in this way, a spindle tool changing mechanism neutral inspection tool, the neutral inspection tool and the pull stud are clamped and fixed in the spindle taper hole, and the pull stud passes through the broach claw and the pull rod connection, the end of the tie rod is connected to the loosening cylinder, the neutral inspection tool includes a taper cup, a clamping sleeve and a mandrel, and the taper cup is provided with a cup that is compatible with the spindle taper hole insertion structure The body part and the joint part adapted to the clamping sleeve, the tapered hole cup and the clamping sleeve are respectively provided with through holes for inserting the mandrel, and the end of the tapered hole cup is far away from the clamping sleeve The through hole is provided with an internal thread, the taper cup is clamped with the pull stud through the internal thread, and the clamping sleeve is clamped by the tool changing manipulator to adjust the position and coaxiality of the taper hole of the main shaft.

As an improved solution, the clamping sleeve is provided with a clamping part and an extension part, and the outer peripheral surface of the clamping part is provided with a groove for clamping by the tool changing manipulator.

As an improved solution, the mandrel includes an insertion part and a handle part for inserting into the through holes of the clamping sleeve and the tapered hole cup.

Since the tool change mechanism of the main shaft includes the taper cup clamped together with the pull nail, the clamping sleeve and the mandrel held by the tool changing manipulator, insert the taper cup into the taper hole of the main shaft, Then use the tool changing manipulator to hold the clamping sleeve close to the tapered hole cup, and constantly adjust the position of the tool changing manipulator so that the mandrel can pass through the through hole of the clamping sleeve and enter the through hole of the tapered hole cup to complete the replacement. The coaxiality detection between the knife manipulator and the spindle taper hole is easy to operate, thus avoiding the collision and friction between the spindle taper hole and the tool handle when changing the tool, and avoiding the wear of the spindle taper hole.

Since the clamping sleeve is provided with a clamping part and an extension part, and the clamping part is provided with a groove for clamping by the tool changer manipulator, the structure is simple, the operation is convenient, and it is easy to adjust the position and coaxiality of the tool changer manipulator. Adjustment.

Since the mandrel is equipped with an insertion part and a hand-held part, the insertion part is inserted into the through hole of the clamping sleeve and the tapered hole cup to realize the detection of neutrality and coaxiality. detection.

Description of drawings

Fig. 1 is the structural representation of the HSK knife cup three-piece set provided by the prior art;

Fig. 2 is a structural schematic diagram of the neutral inspection tool provided by the spindle tool change mechanism provided by the utility model;

Fig. 3 is a schematic diagram of the working state of the spindle tool changing mechanism for the neutral inspection tool provided by the utility model;

Fig. 4 is the clamping schematic diagram of the taper cup provided by the utility model;

Among them, 1-spindle taper hole, 2-pull nail, 3-broach claw, 4-tie rod, 5-taper cup, 51-cup body, 52-junction, 6-clamping sleeve, 61-clamping 611-groove, 62-extension, 7-mandrel, 71-insertion, 72-handle, 8-through hole.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Fig. 2 shows a schematic structural view of the neutral inspection tool of the spindle tool change mechanism provided by the present invention. For the convenience of description, only the parts related to the present invention are shown in the figure.

The tool changing mechanism of the spindle is fixed in the taper hole 1 of the main shaft after clamping the neutral inspection tool and the pull stud 2. The pull stud 2 is connected to the pull rod 4 through the pull claw 3, and the end of the pull rod 4 is connected to the knife release cylinder. The neutral inspection tool includes a taper cup 5, a clamping sleeve 6 and a mandrel 7. The taper cup 5 is provided with a cup body 51 compatible with the spindle taper hole 1 insertion structure and with the The fitting portion 52 of the clamping sleeve 6 is provided with a through hole 8 for inserting the mandrel 7 in the tapered hole cup 5 and the clamping sleeve 6 respectively, and the tapered hole cup 5 is far away from the clamping sleeve 6 The through hole 8 at one end is provided with an internal thread, the tapered hole cup 5 is clamped with the pull stud 2 through the internal thread, and the clamping sleeve 6 is clamped and adjusted by the tool changer manipulator to adjust the contact with the spindle taper hole 1. position and coaxiality.

The above-mentioned spindle tool change mechanism alignment detection tool is mainly used in the alignment detection of the taper hole of the BT tool holder and the tool change manipulator, and will not be repeated here.

Wherein, the tapered hole cup 5 is provided with a cup body portion 51 adapted to the inserting structure of the spindle taper hole 1 and a joint portion 52 adapted to the clamping sleeve 6, wherein the cup body portion 51 passes through the inner The screw thread and the pull stud 2 are clamped, and the joint part 52 realizes the joint with the clamping part 61 to realize the neutrality detection.

In the present utility model, the clamping sleeve 6 is provided with a clamping portion 61 and an extension portion 62, and the outer peripheral surface of the clamping portion 61 is provided with a groove 611 for clamping by a tool changing manipulator, which has a simple structure and is easy to operate , It is easy to adjust the position and coaxiality by clamping the tool changing manipulator.

In the present utility model, the mandrel 7 includes an insertion part 71 and a handle part 72 for inserting the through hole 8 of the clamping sleeve 6 and the tapered hole cup 5, so as to realize the detection of neutrality and coaxiality, and the handle part It is convenient for inspectors to hold and insert, easy to operate, and easy to realize alignment detection.

In order to facilitate the understanding of the present utility model, below in conjunction with shown in Fig. 3 and Fig. 4, the working process of the present utility model is set forth:

The tool release cylinder at the tail of the main shaft applies a force to the tie rod 4 to move the tie rod 4 to the right. Under the action of the force of the pull rod, the puller claw 3 expands and the taper cup 5 is easily inserted into the spindle taper hole 1;

After the unloading cylinder is unloaded, under the force of the butterfly spring on the pull rod 4, the pull rod 4 is moved to the left, the pulling claw 3 is locked, and the pull nail 2 on the tapered hole cup 5 is pulled to fix the tapered hole cup 5 In the spindle taper hole 1. Then, the tool changing manipulator clamps the clamping sleeve 6 and moves it to the tool insertion position at the end of the main shaft. At this time, you can hold the mandrel 7 to detect the centering of the tapered hole cup 5 and the clamping sleeve 6, and adjust the tool changing manipulator. The position of the tool changer manipulator and the spindle taper hole are qualified.

The tapered hole cup 5 is used to install the pulling claw 3 with the pull rod 4 for clamping, and the tool changing manipulator clamps the clamping sleeve 6. First, the position of the tool changing manipulator must be adjusted to ensure that the position of the main shaft and the tool changing manipulator meets the requirements. The mandrel 7 can be inserted into the through hole 8 of the tapered hole cup 5 from the through hole 8 of the clamping sleeve 6. Through the through hole 8 of the cup 5, the mandrel 7 can pass through the through hole 8 of the tapered hole cup 5 after adjusting the tool changing manipulator so that the coaxiality also meets the requirements, so that it plays a test role in the debugging process. As a result, the centering requirements of the tool changing manipulator and the main shaft are guaranteed, and the collision friction between the main shaft taper hole 1 and the tool handle is avoided during automatic tool change, and the wear of the main shaft taper hole is also avoided.

In the utility model, the centering tool of the main shaft tool changing mechanism includes a tapered hole cup clamped together with the pull nail, a clamping sleeve and a mandrel held by the tool changing manipulator, and the tapered hole cup is inserted into the spindle cone. Insert the hole into the knife edge, then use the tool changing manipulator to hold the clamping sleeve close to the tapered hole cup, and constantly adjust the position of the tool changing manipulator so that the mandrel can pass through the through hole of the clamping sleeve and enter the tapered hole cup The through hole completes the coaxiality detection between the tool changing manipulator and the taper hole of the spindle, which is easy to operate, thereby avoiding the collision and friction between the taper hole of the spindle and the tool handle during tool changing, and avoiding the wear of the taper hole of the spindle.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (3)

1. a main shaft cutter-exchange mechanism centering cubing, it is characterized in that, after described centering cubing and blind rivet (2) clamping, be fixed in spindle taper hole (1), described blind rivet (2) is connected with pull bar (4) by broaching tool pawl (3), described pull bar (4) end connects loose knife oil cylinder, described centering cubing comprises taper hole cup (5), retaining sleeve (6) and mandrel (7), described taper hole cup (5) is provided with the inner cup portion (51) adapting with described spindle taper hole (1) slotting tool structure and the junction surface (52) adapting with described retaining sleeve (6), in described taper hole cup (5) and retaining sleeve (6), be respectively equipped with for inserting the through hole of described mandrel (7), described taper hole cup (5) is provided with internal thread away from the through hole (8) of described retaining sleeve (6) one end, described taper hole cup (5) is by described internal thread and described blind rivet (2) clamping, described retaining sleeve (6) clamps position degree and the axiality of adjusting with spindle taper hole (1) by tool-changing mechanical arm.

2. main shaft cutter-exchange mechanism centering cubing according to claim 1, it is characterized in that, described retaining sleeve (6) is provided with clamping part (61) and extension (62), and described clamping part (61) outer circumference surface is provided with the groove (611) for tool-changing mechanical arm clamping.

3. main shaft cutter-exchange mechanism centering cubing according to claim 1, is characterized in that, described mandrel (7) comprises for inserting insertion section (71) and Handheld Division (72) of the through hole of described retaining sleeve (6) and taper hole cup (5).