Power tool turret with cooling device

Abstract

The utility model provides a power tool turret with a cooling device to solve the problems that a heat dissipation structure of a machine tool power tool turret is poor in universality, and the internal space of the power tool turret is difficult to protect when cooling and heat dissipation are executed. The semiconductor hot end plate, the semiconductor cold end plate, the heat conduction embedded pipe and the refrigeration contact plate are arranged, the refrigeration mechanism and the circulating heat exchange mechanism are arranged on the tool turret box, heat exchange can be conducted on heat dissipation of the power tool turret in a concentrated mode, and the forced heat dissipation effect and stability of the heat dissipation structure of the power tool turret are improved; the influence of the heat dissipation structure on the size of the power tool turret is reduced; by arranging a heat conduction fixing sleeve, a bundling spring, a heat absorption exchange plate set, a telescopic matching cover and an electromagnetic rotating blade, the continuity of heat exchange and transfer in the power tool turret is improved, the possibility that a circulating medium carries impurities to enter the power tool turret is reduced, and the safety of heat dissipation work of the power tool turret is improved; the heat dissipation effect can be improved while a part of vibration of the power tool turret is absorbed.

Description

Technical Field

[0001] The utility model relates to the technical field of power tool towers, in particular to a power tool tower with a cooling device. Background Art

[0002] The power turret is a key core component used in CNC machine tools. The current traditional turret can only be installed with turning tools or boring tools for basic turning processing; a single built-in servo motor is used to control the precise rotation of the turret, also known as tool changing, and control the high-speed rotation of the rotating tool, integrating turning and milling processing functions; the power turret is usually installed on the machine tool guide rail to cooperate with the workpiece clamped by the machine tool spindle, and the machine tool movement is controlled according to digital information to process the workpiece. The power turret can independently drive the tool movement on the tool holder to process the workpiece. Most power turrets have a relatively complex internal power structure, which is mostly divided into two parts: tool drive power and tool disc rotation power. Some power turrets with more complete functions are also equipped with subsystem components such as lubrication, heat dissipation and control system; because the power transmission of the power turret is all transmitted in the turret box, it is not exposed to the outside for sealing requirements, so it accumulates more heat; when the heat in these turret boxes is more enriched, it will affect the accuracy of the turret movement transmission, thereby affecting the quality of the workpiece.

[0003] In the prior art, most power turret heat dissipation structures usually rely on heat exchange between the coolant circulation passage and the internal structure of the turret to dissipate heat. The applicability of these heat dissipation structures varies greatly depending on the turret structure. In addition, ordinary heat dissipation systems that perform heat exchange inside the turret usually have medium circulation, which is prone to leakage, damaging the inside of the turret and reducing its service life. Regular maintenance and monitoring are required to ensure stable operation.

[0004] US invention patent US20230191549A1 discloses a turret tool cooling device, including a tool table body, a turret installed on the tool table body and configured to accommodate a plurality of tools, a dividing unit configured to divide the plurality of tools accommodated in the turret, a driving unit installed in the tool table body and configured to provide rotational power to the dividing unit, and a cooling flow path configured to transport a low-temperature cooling fluid supplied from a low-temperature cooling fluid storage unit to one or more tools accommodated in the turret, wherein the cooling flow path is arranged to pass through a portion of the indexing unit so that the low-temperature cooling fluid can be continuously supplied even when the turret is indexed; this heat dissipation structure and method mainly dissipates heat to the directly connected tool part by controlling the heat exchange of the cooling main flow path, and this heat dissipation method has little effect on the internal space of the turret; the method of adopting this method of directly connecting the coolant flow path to the cooling position requires the opening of flow path hole grooves and other structures, which has high processing requirements and has a greater impact on the internal space of the turret, and is easy to transmit impurities into the turret at the leakage and gap positions, increasing the risk of friction and corrosion, and reducing the service life of the turret. Utility Model Content

[0005] The purpose of the utility model is to provide a power turret with a cooling device to solve the problems in the prior art that the heat dissipation structure of the power turret of a machine tool has poor versatility, the adaptation conditions of the cooling structure have high requirements for the structural modification of the power turret, and it is difficult to protect the internal space of the power turret during cooling and heat dissipation.

[0006] In order to solve the above technical problems, the utility model specifically provides the following technical solutions:

[0007] The power turret with cooling device comprises a turret box, the front end of the turret box is fixedly connected with a cutter disc clutch, the front end of the cutter disc clutch is rotatably connected with a cutter disc, the rear end of the turret box is fixedly connected with a turret motor, and a refrigeration mechanism and a circulating heat exchange mechanism are arranged on the side wall of the turret box.

[0008] Preferably, the refrigeration mechanism includes a sealed installation box fixedly connected to the side wall of the turret box, an installation storage cavity is provided in the sealed installation box, a refrigeration contact plate is fixedly connected to the inner wall on the outlet side of the installation storage cavity, a semiconductor hot end plate is fixedly connected to the end face of the refrigeration contact plate, a semiconductor cold end plate is fixedly connected to the side of the semiconductor hot end plate, and the semiconductor cold end plate is fitted with the side wall of the turret box; the direct interference between the heat dissipation structure and the internal space of the power turret is isolated, the convenience of heat dissipation of the power turret is improved, the demand for modification of the internal structure of the power turret by the heat dissipation structure is reduced, and the versatility of the heat dissipation structure of the power turret is improved.

[0009] Preferably, the positions of the cooling contact plate and the semiconductor hot end plate cooperate with the side walls of the turret box, the inner wall of the installation storage cavity is rigidly connected to the cooling contact plate and the semiconductor hot end plate, and a group of evenly distributed heat conduction embedded tubes are fixedly connected to the cooling contact plate.

[0010] Preferably, the upper end of the heat conduction embedded tube is fixedly connected to a collection output tube through a pipeline, a spiral groove that fits the refrigeration contact plate is provided on the circumferential surface of the heat conduction embedded tube, and a group of flow input tubes are fixedly connected to the lower end of the heat conduction embedded tube; the compactness and heat dissipation effect of the power turret heat dissipation structure are improved, the maintenance requirements of the heat dissipation structure are reduced, the stability of the forced heat dissipation of the power turret is improved, and the influence of the heat dissipation structure on the size of the power turret is reduced.

[0011] Preferably, the circulating heat exchange mechanism includes a heat-conducting fixed sleeve fixedly connected to the right end surface of the refrigeration contact plate, the heat-conducting fixed sleeve is located in the installation and storage cavity, the right end of the heat-conducting fixed sleeve is limited and slidably connected with a telescopic matching cover, a heat exchange contact cavity is arranged in the telescopic matching cover, the limit of the telescopic matching cover cooperates with the installation and storage cavity, and a protective storage box is fixedly connected to the side wall of the installation and storage cavity.

[0012] Preferably, two groups of circulating airflow pipes distributed up and down are fixedly connected inside the side wall of the heat exchange contact chamber, and the circulating airflow pipes cooperate with the sliding limit positions of the telescopic matching cover.

[0013] Preferably, a heat absorption exchange plate group and a convergence spring are fixedly connected to the inner wall of the heat conductive fixed sleeve close to the refrigeration contact plate, the guide of the heat absorption exchange plate group cooperates with the circulating airflow tube, and the other end of the convergence spring is fixedly connected to the right end wall of the heat exchange contact chamber, and an electromagnetic rotating blade is arranged in the right end wall of the heat exchange contact chamber; the continuity of heat exchange transfer inside the power knife turret is improved, the possibility of impurities carried by the circulating medium into the power knife turret is reduced, and the safety of the heat dissipation work of the power knife turret is improved; it can improve the heat dissipation effect while absorbing part of the vibration of the power knife turret, thereby improving the heat exchange efficiency and circulating heat dissipation effect of the hot airflow in the internal space of the power knife turret.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model isolates the direct interference between the heat dissipation structure and the internal space of the power knife tower by arranging a semiconductor hot end plate, a semiconductor cold end plate, a heat conduction embedded tube and a refrigeration contact plate, can concentrate on heat exchange for the heat dissipation of the power knife tower, improves the forced heat dissipation effect and stability of the heat dissipation structure of the power knife tower, and reduces the influence of the heat dissipation structure on the size of the power knife tower; by arranging a heat conductive fixing sleeve, a convergence spring, a heat absorption exchange plate group, a telescopic matching cover and an electromagnetic rotating blade, the continuity of heat exchange transfer inside the power knife tower is improved, the possibility of impurities carried by the circulating medium into the power knife tower is reduced, and the safety of the heat dissipation work of the power knife tower is improved; the heat exchange suction and delivery circulation efficiency of the airflow is promoted, and the heat dissipation effect can be improved while absorbing a part of the vibration of the power knife tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the power turret with a cooling device of the utility model;

[0018] Figure 2 This is a schematic diagram of the main view of the power turret with a cooling device of the utility model;

[0019] Figure 3 yes Figure 2 Schematic diagram of the three-dimensional structure of the refrigeration mechanism;

[0020] Figure 4 yes Figure 2 A schematic diagram of the main view of the middle refrigeration mechanism;

[0021] Figure 5 yes Figure 4 AA cross-sectional view in FIG.

[0022] Figure 6 yes Figure 5 A partial enlarged schematic diagram of the middle tension spring;

[0023] Figure 7 yes Figure 5 Schematic diagram from above;

[0024] Figure 8 yes Figure 7 BB cross-sectional view in FIG.

[0025] Fig. 9 yes Figure 8Schematic diagram of CC cross-section in FIG.

[0026] Fig.10 yes Figure 2 Schematic diagram of the internal structure of the refrigeration mechanism;

[0027] Fig.11 yes Figure 6 Schematic diagram of the three-dimensional structure of the middle heat-conducting fixed sleeve;

[0028] Fig.12 yes Figure 6 Schematic diagram of the three-dimensional structure of the telescopic matching cover.

[0029] Figure numbers: turret box 10; cutter disc clutch 11; cutter disc 12; turret motor 13; refrigeration mechanism 20; sealed installation box 21; refrigeration contact plate 22; semiconductor hot end plate 23; semiconductor cold end plate 24; heat conduction embedded tube 25; aggregation output tube 26; diversion input tube 27; protective storage box 28; installation storage chamber 29; circulating heat exchange mechanism 40; heat conduction fixing sleeve 41; circulating airflow tube 42; telescopic matching cover 43; convergence spring 44; heat absorption exchange plate group 45; electromagnetic rotating blades 46; heat exchange contact chamber 47. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0031] The following first describes the concepts involved in the present application in conjunction with the accompanying drawings. It should be noted that the following description of each concept is only to make the content of the present application easier to understand, and does not limit the scope of protection of the present application; at the same time, the embodiments and features in the embodiments of the present application can be combined with each other in the absence of conflict. The present application will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments.

[0032] Embodiment 1

[0033] See attached Figure 1 To Attachment Fig.12As shown, the utility model provides a power turret with a cooling device, including a turret box 10, a front end face of the turret box 10 is fixedly connected to a cutter disc clutch 11, a front end of the cutter disc clutch 11 is rotatably connected to a cutter disc 12, a rear end face of the turret box 10 is fixedly connected to a turret motor 13, and a refrigeration mechanism 20 and a circulating heat exchange mechanism 40 are provided on the side wall of the turret box 10; the method of fixed installation on the side wall of the turret box 10 is highly versatile and can adapt to the heat dissipation installation and use environment of power turrets of various specifications.

[0034] The refrigeration mechanism 20 includes a sealed installation box 21 fixedly connected to the side wall of the turret box 10, and an installation storage chamber 29 is provided in the sealed installation box 21. A refrigeration contact plate 22 is fixedly connected to the inner wall of the outlet side of the installation storage chamber 29, and a semiconductor hot end plate 23 is fixedly connected to the end surface of the refrigeration contact plate 22. A semiconductor cold end plate 24 is fixedly connected to the side of the semiconductor hot end plate 23, and the semiconductor cold end plate 24 is attached to the side wall of the turret box 10; semiconductor refrigeration, also known as electronic refrigeration, or temperature difference electric refrigeration, is a subject at the edge of refrigeration technology and semiconductor technology. It uses a PN junction composed of special semiconductor materials to form a thermocouple pair to produce a Peltier effect, that is, a new refrigeration method through direct current refrigeration, which is known as the world's three major refrigeration methods together with compression refrigeration and absorption refrigeration. Refrigeration method: After the refrigeration contact plate 22 is fixedly installed on the inner wall of the storage cavity 29, the semiconductor hot end plate 23 fixed on the left end face of the refrigeration contact plate 22 is fixed by a rigid material isolation and sealing installation box 21 with low thermal conductivity, and the semiconductor hot end plate 23 is well contacted and fitted on the side wall of the turret box 10 when the side wall of the turret box 10 is fixedly installed, and the heat conducted on the side wall of the turret box 10 is refrigerated and exchanged by the semiconductor cold end plate 24, so that the absorbed heat is enriched by the semiconductor hot end plate 23 and then conducted to the refrigeration contact plate 22, thereby isolating the direct interference between the heat dissipation structure and the internal space of the power turret, thereby improving the convenience of heat dissipation of the power turret, reducing the need for modification of the internal structure of the power turret by the heat dissipation structure, and improving the versatility of the heat dissipation structure of the power turret.

[0035] The positions of the cooling contact plate 22 and the semiconductor hot end plate 23 cooperate with the side wall of the turret box 10, and the inner wall of the installation storage cavity 29 is rigidly connected to the cooling contact plate 22 and the semiconductor hot end plate 23. A group of evenly distributed heat conduction embedded tubes 25 are fixedly connected to the cooling contact plate 22.

[0036] The upper end of the heat conduction embedded tube 25 is fixedly connected with a collecting output tube 26 through a pipeline. The circumferential surface of the heat conduction embedded tube 25 is provided with a spiral groove that fits with the refrigeration contact plate 22. The lower end of the heat conduction embedded tube 25 is fixedly connected with a group of shunt input tubes 27; the coolant is shunted and distributed into the heat conduction embedded tube 25 through the shunt input tube 27. Under the joint action of the thermal conductivity of the heat conduction embedded tube 25 and the contact surface of the circumferential groove, the heat absorbed by the refrigeration contact plate 22 is taken away, and the heat exchange is concentrated for the heat dissipation of the power turret, which improves the compactness and heat dissipation effect of the heat dissipation structure of the power turret, reduces the maintenance requirements of the heat dissipation structure, improves the stability of the forced heat dissipation of the power turret, and reduces the influence of the heat dissipation structure on the size of the power turret.

[0037] The circulating heat exchange mechanism 40 includes a heat conductive fixing sleeve 41 fixedly connected to the right end surface of the refrigeration contact plate 22. The heat conductive fixing sleeve 41 is located in the installation and storage cavity 29. The right end of the heat conductive fixing sleeve 41 is limitedly slidably connected with a telescopic matching cover 43. The telescopic matching cover 43 is provided with a heat exchange contact cavity 47. The limit of the telescopic matching cover 43 cooperates with the installation and storage cavity 29.

[0038] Two groups of circulating airflow tubes 42 distributed up and down are fixedly connected to the side wall of the heat exchange contact chamber 47. The sliding limit positions of the circulating airflow tubes 42 and the telescopic matching covers 43 cooperate with each other. A protective storage box 28 is fixedly connected to the side wall of the installation storage chamber 29. The necessary connection and installation components are stored through the protective storage box 28 fixed on the side wall of the installation storage chamber 29.

[0039] A heat absorbing exchange plate group 45 and a convergence spring 44 are fixedly connected to the inner wall of the heat-conducting fixed sleeve 41 near the refrigeration contact plate 22. The guide of the heat absorbing exchange plate group 45 cooperates with the circulating airflow pipe 42. The other end of the convergence spring 44 is fixedly connected to the right end wall of the heat exchange contact chamber 47. An electromagnetic rotating blade 46 is arranged in the right end wall of the heat exchange contact chamber 47. By injecting an inert gas with high thermal expansion into the closed internal space of the power knife tower, the two groups of circulating airflow pipes 42 are connected to conduct the power knife tower through a pipeline equipped with a suction power according to the sealing conditions inside the knife tower. The circulation passage between the inner space of the tower and the heat exchange contact chamber 47 drives the airflow inside the power knife tower to circulate in the heat exchange contact chamber 47 under the action of thermal expansion or suction power, and then contacts the wall surface of the heat conductive fixing sleeve 41 facing the cooling contact plate 22 in the heat exchange contact chamber 47 for heat exchange, and transfers the heat in the circulating airflow to the cooling contact plate 22 for heat dissipation, thereby improving the continuity of heat exchange transfer inside the power knife tower, reducing the possibility of the circulating medium carrying impurities into the power knife tower, and improving the safety of the heat dissipation work of the power knife tower;

[0040] The heat exchange airflow flowing into the heat exchange contact chamber 47 is driven by the electromagnetic rotating blades 46 to fully contact the heat absorption exchange plate group 45 and the convergence spring 44 in the heat exchange contact chamber 47, thereby transferring the heat in the airflow that is difficult to directly contact and conduct to the heat conduction fixing sleeve 41 and the refrigeration contact plate 22 for heat dissipation. At the same time, the expansion of the circulating gas and the contraction pressure after the heat exchange, under the action of airtightness, cooperate with the convergence spring 44 to drive the telescopic matching cover 43 to slide in the heat conduction fixing sleeve 41 to change the size of the heat exchange contact chamber 47 space, and promote the one-way suction and delivery action of the circulating airflow in the process again, further improving the stability and heat exchange efficiency of the circulating heat exchange airflow, and improving the circulating heat dissipation effect of the hot airflow in the internal space of the power turret;

[0041] In addition, due to the rigid connection between the sealed installation box 21, the refrigeration contact plate 22, the semiconductor hot end plate 23 and the turret box 10, the vibration of the power turret transmission is transmitted to the sealed installation box 21 and the refrigeration contact plate 22 through the turret box 10, thereby driving the heat absorption exchange plate group 45 to vibrate synchronously. At this time, the rotation of the heat absorption exchange plate group 45 is transmitted to the telescopic matching cover 43 through the contraction spring 44, driving the telescopic matching cover 43 to slide back and forth in the heat conductive fixing sleeve 41. The air pressure in the heat exchange contact chamber 47 is changed during the back and forth sliding process, further promoting the suction and delivery cycle of the circulating airflow, which can improve the heat dissipation effect while absorbing part of the power turret vibration.

[0042] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the utility model, and are not intended to limit the implementation methods of the technology of the utility model in any form. Any technical personnel in this field may make slight changes or modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the utility model, but they should still be regarded as technologies or embodiments that are essentially the same as the utility model.

[0043] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and its core ideas of this application. The above is only the preferred implementation method of this application. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the scope of protection of this application.

Claims

1. A power turret with a cooling device, comprising a turret box (10), the front end surface of the turret box (10) being fixedly connected to a cutter disc clutch (11), the front end of the cutter disc clutch (11) being rotatably connected to a cutter disc (12), and the rear end surface of the turret box (10) being fixedly connected to a turret motor (13), characterized in that: A refrigeration mechanism (20) and a circulating heat exchange mechanism (40) are provided on the side wall of the turret box (10).

2. The power turret with cooling device according to claim 1, characterized in that: The refrigeration mechanism (20) comprises a sealed installation box (21) fixedly connected to the side wall of the turret box (10), a mounting and receiving chamber (29) being provided in the sealed installation box (21), a refrigeration contact plate (22) being fixedly connected to the inner wall of the outlet side of the mounting and receiving chamber (29), a semiconductor hot end plate (23) being fixedly connected to the end surface of the refrigeration contact plate (22), a semiconductor cold end plate (24) being fixedly connected to the side surface of the semiconductor hot end plate (23), and the semiconductor cold end plate (24) being in contact with the side wall of the turret box (10).

3. The power turret with cooling device according to claim 2, characterized in that: The positions of the cooling contact plate (22) and the semiconductor hot end plate (23) cooperate with the side wall of the turret box (10), the inner wall of the installation storage cavity (29) is rigidly connected to the cooling contact plate (22) and the semiconductor hot end plate (23), and a group of uniformly distributed heat conduction embedded tubes (25) are fixedly connected inside the cooling contact plate (22).

4. The power turret with cooling device according to claim 3, characterized in that: The upper end of the heat conduction embedded tube (25) is fixedly connected to a collection output tube (26) via a pipeline, a spiral groove that fits the refrigeration contact plate (22) is provided on the circumferential surface of the heat conduction embedded tube (25), and the lower end of the heat conduction embedded tube (25) is fixedly connected to a group of flow input tubes (27).

5. The power turret with cooling device according to claim 2, characterized in that: The circulating heat exchange mechanism (40) comprises a heat conductive fixing sleeve (41) fixedly connected to the right end surface of the refrigeration contact plate (22), the heat conductive fixing sleeve (41) being located in the installation and storage cavity (29), the right end of the heat conductive fixing sleeve (41) being limitedly slidably connected to a telescopic matching cover (43), a heat exchange contact cavity (47) being provided in the telescopic matching cover (43), and the limit position of the telescopic matching cover (43) being matched with the installation and storage cavity (29).

6. The power turret with cooling device according to claim 5, characterized in that: Two groups of circulating airflow pipes (42) distributed up and down are fixedly connected inside the side wall of the heat exchange contact chamber (47), and the circulating airflow pipes (42) cooperate with the sliding limit positions of the telescopic matching cover (43).

7. The power turret with cooling device according to claim 6, characterized in that: A heat absorption exchange plate group (45) and a convergence spring (44) are fixedly connected to the inner wall of the heat-conducting fixed sleeve (41) in the direction close to the refrigeration contact plate (22); the guide of the heat absorption exchange plate group (45) cooperates with the circulating air flow tube (42); the other end of the convergence spring (44) is fixedly connected to the right end wall of the heat exchange contact chamber (47); and an electromagnetic rotating blade (46) is provided in the right end wall of the heat exchange contact chamber (47).

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