CN215035742U - Main shaft zero-speed braking device of machine tool - Google Patents
Main shaft zero-speed braking device of machine tool Download PDFInfo
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- CN215035742U CN215035742U CN202120100150.5U CN202120100150U CN215035742U CN 215035742 U CN215035742 U CN 215035742U CN 202120100150 U CN202120100150 U CN 202120100150U CN 215035742 U CN215035742 U CN 215035742U
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Abstract
The utility model discloses a main shaft zero-speed arresting gear of lathe, including main shaft arrestment mechanism, main shaft arrestment mechanism includes the brake wheel, the outer fringe of brake wheel has auxiliary brake groove, one side of brake wheel be provided with the brake pin of auxiliary brake groove cooperation braking, the brake pin passes through telescopic machanism and is fixed with the lathe support, when the main shaft needs the locking, through main shaft arrestment mechanism plays the effect of locking the main shaft, still passes through when main shaft arrestment mechanism opens the brake pin inserts auxiliary brake groove, makes the main shaft realize the zero-speed locking, avoids the main shaft to continue to rotate because of inertia to improve machine tool machining's stability. Furthermore, the utility model discloses still have simple structure, be convenient for maintain characteristics such as, be applicable to various lathe equipment.
Description
Technical Field
The utility model relates to the technical field of mechanical equipment, in particular to main shaft zero-speed brake equipment of lathe.
Background
In the existing spindle of the spindle machine industry, under the condition of braking of a spindle of the spindle machine, spindle locking is generally realized by adopting excitation braking of the spindle, and the spindle can only be locked after an NC signal is given, but in the case, because the inertia of the spindle cannot enable the spindle to stop rotating quickly, the quick tool replacement of a machine tool is influenced, and when the spindle is locked, if a material clamped by the spindle is subjected to milling, because the material clamped by the spindle is subjected to torque force, the excitation braking of the spindle is influenced, the spindle can generate rotary shaking, and therefore the stability of the machine tool machining is influenced to a certain extent. In addition, the brake block that uses on the lathe generally is the dish brake block, and easy wearing and tearing need change when wearing and tearing, and the consumptive material is with high costs.
Thus, the prior art has yet to be improved and enhanced.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing disadvantages of the prior art, an object of the present invention is to provide a spindle zero-speed brake device for a machine tool, which is matched with an auxiliary brake groove through a brake pin to make the spindle achieve the purpose of zero-speed braking.
For solving the technical problem, the utility model discloses following technical scheme has been taken:
the spindle zero-speed braking device of the machine tool comprises a spindle braking mechanism, wherein the spindle braking mechanism comprises a brake wheel, an auxiliary braking groove is formed in the outer edge of the brake wheel, a braking pin matched with the auxiliary braking groove for braking is arranged on one side of the brake wheel, and the braking pin is fixed with a machine tool support through a telescopic mechanism.
In the spindle zero-speed braking device of the machine tool, the auxiliary braking groove is a V-shaped groove, and the tail end of the braking pin is provided with a V-shaped head matched with the V-shaped groove.
In the spindle zero-speed braking device of the machine tool, the brake pin is positioned at the radial position of the brake wheel.
In the spindle zero-speed braking device of the machine tool, the angle of the auxiliary braking groove is an acute angle.
In the spindle zero-speed braking device of the machine tool, an expansion groove is further arranged at the bottom of the auxiliary braking groove, the expansion groove is V-shaped, and the angle of the expansion groove is smaller than that of the auxiliary braking groove.
In the spindle zero-speed braking device of the machine tool, the bottom of the expansion groove is flat.
In the spindle zero-speed braking device of the machine tool, two sides of the auxiliary braking groove are provided with preset thicknesses.
In the spindle zero-speed braking device of the machine tool, the telescopic mechanism comprises an air cylinder and an air cylinder ejector rod, the air cylinder ejector rod is arranged at the movable end of the air cylinder, and the brake pin is arranged on the air cylinder ejector rod.
The spindle zero-speed braking device of the machine tool further comprises a control mechanism, wherein the control mechanism comprises an inductor and a control mainboard, the inductor and the control mainboard are arranged at the position of the cylinder, and the control mainboard controls the working state of the cylinder according to the opening and closing of the spindle motor.
In the spindle zero-speed braking device of the machine tool, 1 to 4 braking pins are provided.
Compared with the prior art, the utility model provides a main shaft zero-speed arresting gear of lathe when the main shaft needs the locking, through main shaft arrestment mechanism plays the effect of locking the main shaft, still passes through when main shaft arrestment mechanism opens the brake pin inserts supplementary brake groove, makes the main shaft realize zero-speed locking, avoids the main shaft to continue to rotate because of inertia to improve machine tool machining's stability.
Drawings
Fig. 1 is a schematic structural diagram of the spindle zero-speed braking device of the machine tool provided by the present invention.
Fig. 2 is a schematic structural view of a cross section a-a in fig. 1.
Fig. 3 is an enlarged view of fig. 1 at B.
Reference is made to the accompanying drawings in which: 1. brake wheel 11, preset thickness 2, auxiliary brake groove 3, brake pin 4, telescopic mechanism 41, air cylinder 42, air cylinder ejector rod 5, machine tool support 6 and expansion groove
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "on," "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
It should be noted that the terms of orientation such as left, right, up and down in the embodiments of the present invention are only relative to each other or are referred to the normal use state of the product, and should not be considered as limiting.
Please refer to fig. 1, fig. 2 and fig. 3, the utility model provides a main shaft zero-speed brake device of machine tool includes main shaft brake mechanism (not marked in the upper drawing), main shaft brake mechanism includes brake wheel 1, the outer fringe of brake wheel 1 has auxiliary brake groove 2, one side of brake wheel 1 be provided with auxiliary brake groove 2 cooperation braking stop pin 3, stop pin 3 is fixed with machine tool support 5 through telescopic machanism 4, when the main shaft needs to be locked, play the effect of locking the main shaft through main shaft brake mechanism (like spindle motor), still insert auxiliary brake groove 2 through stop pin 3 when main shaft brake mechanism opens, make the main shaft realize the zero-speed locking, avoid the main shaft to continue to rotate because of inertia to improve the stability of machine tool processing.
In this embodiment, the auxiliary braking groove 2 is a V-shaped groove (as shown in fig. 3), the end of the braking pin 3 is a V-shaped head adapted to the V-shaped groove, and the braking pin 3 is located at a radial position of the brake wheel 1 (i.e., located at a side edge of the brake wheel 1), so that the braking pin 3 is vertically inserted into the auxiliary braking groove 2, and the auxiliary braking groove 2 is subjected to the resisting force and pressure of the braking pin 3, so that the brake wheel 1 stops rotating instantly, and the main shaft is prevented from continuing to rotate due to inertia after the motor brakes.
Furthermore, the brake pin 3 can be inserted into the auxiliary brake groove 2 more deeply through the matching of the V-shaped head and the V-shaped groove, so that the brake pin 3 is tightly abutted against the auxiliary brake groove 2, the friction between the auxiliary brake groove 2 and the brake pin 3 is increased, and the brake wheel 1 can be further ensured to stop rotating instantly.
Wherein, the number of the brake pins 3 is 1-4, and the number of the brake pins 3 can be specifically selected according to production requirements, so long as the purpose of zero-speed braking can be achieved, the utility model discloses do not make the restriction.
Specifically, the angle of the auxiliary braking groove 2 is an acute angle (e.g. 30-60 degrees), and the end of the braking pin 3 is the same acute angle as the auxiliary braking groove 2, so that the braking pin 3 can be rapidly inserted into the auxiliary braking groove 2 and cooperate with the auxiliary braking groove to stop the rotation of the brake wheel 1 instantaneously.
Preferably, the bottom of the auxiliary braking groove 2 is further provided with an expansion groove 6, the expansion groove 6 is V-shaped, the angle of the expansion groove 6 is smaller than that of the auxiliary braking groove 2, after the brake pin 3 is inserted into the auxiliary braking groove 2, the tip of the brake pin is clamped with the expansion groove 6 in a similar interference fit manner, friction between the brake pin 3 and the auxiliary braking groove 2 is increased, when the brake pin 3 abuts against the auxiliary braking groove 2 for braking, the auxiliary braking groove 2 and the brake pin 3 are both worn, and the service life of the auxiliary braking groove 2 can be prolonged through the expansion groove 6.
As shown in fig. 1 and 3, the bottom of the expansion slot 6 is flat, which reduces the damage of the brake wheel caused by the stress concentration of the bottom of the auxiliary brake slot 2 due to braking, and the tip of the V-shaped head of the brake pin 3 is also flat, so that the V-shaped recess at the bottom of the expansion slot 6 when the brake pin 3 abuts against the expansion slot 6 can be avoided, and the tip of the brake pin 3 can be prevented from being broken.
The both sides of auxiliary brake groove 2 have and predetermine thickness 11, predetermine thickness 11 multiplicable brake wheel's intensity to avoid causing phenomena such as brake wheel 1 damage, fracture because of wearing and tearing, and then guarantee main shaft arrestment mechanism's normal operating.
Referring to fig. 1, 2 and 3, the telescopic mechanism 4 includes a cylinder 41 and a cylinder rod 42, the cylinder rod 42 is disposed at the movable end of the cylinder 41, the brake pin 3 is disposed on the cylinder rod 42 and detachably connected to the cylinder rod 42, and the cylinder 41 controls the brake pin 3 to extend and retract through the cylinder rod 42 to control whether the brake pin 3 assists braking of the brake wheel, and the telescopic mechanism 4 is a prior art and is not described herein again. The utility model discloses a mode of cylinder cooperation brake pin 3 when the tip of brake pin 3 wearing and tearing, need not to change brake pin 3, and accessible actuating cylinder's stroke makes brake pin 3 continuously use, has reduced the consumptive material cost.
The spindle zero-speed braking device further comprises a control mechanism (not shown in the figure), the control mechanism comprises an inductor and a control main board, the inductor and the control main board are arranged at the position of the cylinder 41, the control main board controls the working state of the cylinder 41 according to the opening and closing state of the spindle motor, and the inductor induces the cylinder ejector rod to stretch to a set position and stop, so that the brake pin is prevented from stretching excessively.
To sum up, the utility model provides a main shaft stall braking device of lathe when the main shaft needs the locking, through main shaft arrestment mechanism plays the effect of locking the main shaft, still passes through when main shaft arrestment mechanism opens the brake pin inserts supplementary brake groove, makes the main shaft realize the stall locking, avoids the main shaft to continue to rotate because of inertia to improve machine tool machining's stability.
Furthermore, the auxiliary braking groove is a V-shaped groove, the tail end of the braking pin is a V-shaped head matched with the V-shaped groove, and the braking pin is located at the radial position of the brake wheel, so that the braking pin is vertically inserted into the auxiliary braking groove, and the auxiliary braking groove is subjected to the abutting force and pressure of the braking pin, so that the brake wheel stops rotating instantly. Furthermore, the brake pin can be inserted into the auxiliary brake groove more deeply through the matching of the V-shaped head and the V-shaped groove, so that the brake pin is tightly abutted against the auxiliary brake groove, the friction between the auxiliary brake groove and the brake pin is increased, and the brake wheel can be further ensured to stop rotating instantly.
Furthermore, the utility model discloses still have simple structure, be convenient for maintain characteristics such as, be applicable to various lathe equipment.
It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.
Claims (10)
1. The spindle zero-speed braking device of the machine tool comprises a spindle braking mechanism, wherein the spindle braking mechanism comprises a brake wheel, and the spindle zero-speed braking device is characterized in that an auxiliary braking groove is formed in the outer edge of the brake wheel, a braking pin matched with the auxiliary braking groove for braking is arranged on one side of the brake wheel, and the braking pin is fixed with a machine tool support through a telescopic mechanism.
2. The zero-speed braking device for the spindle of the machine tool according to claim 1, wherein the auxiliary braking groove is a V-shaped groove, and the end of the braking pin is a V-shaped head matched with the V-shaped groove.
3. The zero-speed spindle brake device for machine tools of claim 2, wherein the brake pin is located radially of the brake wheel.
4. The zero-speed spindle brake device for machine tools of claim 2, wherein the angle of the auxiliary braking groove is acute.
5. The zero-speed braking device for the spindle of the machine tool according to claim 4, wherein an expansion groove is further formed in the bottom of the auxiliary braking groove, the expansion groove is V-shaped, and the angle of the expansion groove is smaller than that of the auxiliary braking groove.
6. The zero-speed spindle brake device for machine tools of claim 5, wherein the bottom of the expansion slot is flat.
7. The zero-speed spindle brake device of a machine tool according to claim 5, wherein both sides of the auxiliary braking groove have a predetermined thickness.
8. The zero-speed braking device for the main shaft of the machine tool according to claim 1, wherein the telescopic mechanism comprises a cylinder and a cylinder ejector rod, the cylinder ejector rod is arranged at the movable end of the cylinder, and the braking pin is arranged on the cylinder ejector rod.
9. The zero-speed spindle braking device for a machine tool according to claim 8, further comprising a control mechanism, wherein the control mechanism comprises an inductor and a control main board, the inductor and the control main board are arranged at the cylinder, and the control main board controls the working state of the cylinder according to the starting and stopping of the spindle motor.
10. The zero-speed braking device for the spindle of the machine tool according to claim 8, wherein the number of the braking pins is 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120100150.5U CN215035742U (en) | 2021-01-14 | 2021-01-14 | Main shaft zero-speed braking device of machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120100150.5U CN215035742U (en) | 2021-01-14 | 2021-01-14 | Main shaft zero-speed braking device of machine tool |
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| Publication Number | Publication Date |
|---|---|
| CN215035742U true CN215035742U (en) | 2021-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120100150.5U Active CN215035742U (en) | 2021-01-14 | 2021-01-14 | Main shaft zero-speed braking device of machine tool |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117182125A (en) * | 2023-10-17 | 2023-12-08 | 辽宁西格马数控机床有限公司 | Vertical turning and boring compound machine tool |
| CN118123592A (en) * | 2024-04-22 | 2024-06-04 | 广东明科机械智能装备有限公司 | Extension pneumatic brake walks heart machine |
| CN119221182A (en) * | 2024-12-03 | 2024-12-31 | 杭州纳众科技有限公司 | A control method and system for a rapier loom with auxiliary brake of a main shaft motor |
-
2021
- 2021-01-14 CN CN202120100150.5U patent/CN215035742U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117182125A (en) * | 2023-10-17 | 2023-12-08 | 辽宁西格马数控机床有限公司 | Vertical turning and boring compound machine tool |
| CN118123592A (en) * | 2024-04-22 | 2024-06-04 | 广东明科机械智能装备有限公司 | Extension pneumatic brake walks heart machine |
| CN119221182A (en) * | 2024-12-03 | 2024-12-31 | 杭州纳众科技有限公司 | A control method and system for a rapier loom with auxiliary brake of a main shaft motor |
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