Machine tool fixture quick-insertion oil circuit device and machine tool

Abstract

The present invention provides a machine tool fixture quick-insert oil circuit device and a machine tool. The machine tool fixture quick-insert oil circuit device comprises: a fixed seat; a lower connecting plate, the lower connecting plate is liftably mounted on the fixed seat; an upper connecting plate, the upper connecting plate is fixedly mounted on a workbench and is located above the fixed seat; a quick-insert connector assembly, the quick-insert connector assembly comprises a first connector end and a second connector end that are mutually matched and connected, the first connector end is mounted on the lower connecting plate and connected to a first oil pipe, the second connector end is mounted on the upper connecting plate and connected to a second oil pipe; a driving device, the driving device is mounted on the fixed seat to drive the lower connecting plate to rise and fall. The use of the workbench fixture quick-insert oil circuit device of the present invention improves the reliability of the machine tool fixture quick-insert oil circuit device, while having a small number of parts, a simple structure, easy assembly, and low processing and labor costs.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical manufacturing tooling, and in particular to a machine tool fixture quick-insertion oil circuit device and a machine tool. Background Art

[0002] Hydraulic oil circuits are often used in the field of mechanical manufacturing, especially for machine tool fixtures. Most of the oil circuits require fixed connections, that is, the machine tool fixture is placed on the workbench and does not move, and the fixture lead-out pipeline is connected to the valve block as a unified whole and is not separated, and the fixture is clamped and loosened directly.

[0003] However, with the development of the machine tool industry, the requirements for the cycle time of workpiece processing are getting less and less, which requires the application of exchange workbenches. While the workstation is processing, the external workbench can clamp the workpiece, which greatly shortens the processing cycle and improves the processing efficiency. This has new requirements for the structure of the hydraulic oil circuit. The machine tool fixture and the valve block can be separated at any time, so that the machine tool fixture can move freely with the workbench after clamping and maintaining pressure. Before there were technical measures, the oil pipe joints could only be replaced by manual plugging and unplugging, which not only had high labor intensity and many safety hazards, but also restricted the cycle time of the double workbench. Another structure to achieve this effect is to use a guide rail push method: the push cylinder gives power to the oil supply valve block, and the oil supply valve block drags the oil pipe on the track to connect the fixture lead-out pipeline. This structure takes up space, and the adjustment link of this method is complicated and difficult to implement. The hydraulic push part also mostly uses a single cylinder to push a single joint. For the quick-insert mechanism that requires more oil circuits, multi-cylinder push is required. The overall structure is complicated and not practical.

[0004] There are also some machine tool fixture quick-insert oil circuit structures in the prior art that can provide oil supply circuits for the hydraulic fixtures on the workbench, but the structure is complex, the number of parts is large, and there are many precision parts such as cylinder pistons, and the requirements for process, heat treatment, sealing, etc. are high. At the same time, the number of supply oil circuits is limited by the piston diameter, and more oil circuits cannot be provided. Summary of the invention

[0005] The main purpose of the present invention is to provide a machine tool fixture quick-insertion oil circuit device and a machine tool, so as to solve the problem of complex structure of the machine tool fixture quick-insertion oil circuit device in the prior art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a quick-insert oil circuit device for a machine tool fixture is provided, comprising: a fixed seat; a lower connecting plate, which is liftably mounted on the fixed seat; an upper connecting plate, which is fixedly mounted on a workbench and is located above the fixed seat; a quick-insert connector assembly, which comprises a first connector end and a second connector end that are mutually matched and connected, the first connector end is mounted on the lower connecting plate and is connected to a first oil pipe, and the second connector end is mounted on the upper connecting plate and is connected to a second oil pipe; a driving device, which is mounted on the fixed seat to drive the lower connecting plate to rise and fall.

[0007] Furthermore, a positioning assembly is provided between the lower connecting plate and the upper connecting plate.

[0008] Further, the positioning assembly includes a positioning hole and a positioning pin, one of the positioning hole and the positioning pin is arranged on the top surface of the lower connecting plate, and the other is arranged on the bottom surface of the upper connecting plate, and the length of the positioning pin protruding from the lower connecting plate or the upper connecting plate is greater than the length of the first joint end and the second joint end protruding from the lower connecting plate or the upper connecting plate.

[0009] Furthermore, a guide hole is provided on the fixing seat, a guide rod is provided in the guide hole, and the lower connecting plate is fixed to the top end of the guide rod.

[0010] Furthermore, the guide rod is installed in the guide hole through a bearing.

[0011] Furthermore, the machine tool fixture quick-insert oil circuit device also includes a cleaning device, and the cleaning device is installed on the lower connecting plate and / or the upper connecting plate.

[0012] Furthermore, the cleaning device includes: a clean air interface, which is installed on the lower connecting plate and / or the upper connecting plate; an air jet pipe, which is connected to the top of the clean air interface, and the outlet of the air jet pipe is facing the quick-connect connector assembly; and an air supply pipe, which is connected to the bottom of the clean air interface.

[0013] Furthermore, there are multiple quick-connect connector assemblies and multiple cleaning devices, and the multiple quick-connect connector assemblies are arranged in a one-to-one correspondence with the multiple cleaning devices.

[0014] Furthermore, the machine tool fixture quick-insert oil circuit device also includes a protective cover, which is arranged around the outer periphery of the upper connecting plate.

[0015] Furthermore, the machine tool fixture quick-insert oil circuit device also includes a controller, a detection element connected to the controller, and an oil plug arranged on the first oil pipe, the detection element is arranged on the driving device, and after the detection element detects that the first connector end and the second connector end are plugged in place, the controller controls the oil plug to open the first oil pipe.

[0016] Furthermore, the driving device is a thin oil cylinder, and the piston rod of the thin oil cylinder is drivingly connected to the lower connecting plate.

[0017] Furthermore, the detection element is a displacement sensor arranged on the piston rod of the thin oil cylinder.

[0018] According to another aspect of the present invention, a machine tool is provided, comprising a fixture quick-insert oil circuit device, wherein the fixture quick-insert oil circuit device is the above-mentioned machine tool fixture quick-insert oil circuit device.

[0019] By applying the technical solution of the present invention, in actual operation, when the workbench moves to the fixed seat, it can drive the upper connecting plate to move above the upper connecting plate. At this time, the driving action of the driving device can make the lower connecting plate rise and move toward the upper connecting plate, thereby making the first joint end and the second joint end quickly plugged in. After the first joint end and the second joint end are plugged in place, the first oil pipe and the second oil pipe facilitate the supply of oil to the fixture on the machine tool. The use of the workbench fixture quick plug oil circuit device of the present invention improves the reliability of the machine tool fixture quick plug oil circuit device. At the same time, the number of parts is small, the structure is simple, and the assembly is easy, and the processing cost and labor cost are low. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 A schematic perspective view of the machine tool fixture quick-insert oil passage device of the present invention when installed on a machine tool;

[0022] Figure 2 A three-dimensional diagram schematically shows a quick-insert oil passage device for a machine tool fixture according to the present invention;

[0023] Figure 3 A first exploded view of the quick-insertion oil passage device for a machine tool fixture of the present invention is schematically shown;

[0024] Figure 4 A second exploded view of the machine tool fixture quick-insertion oil passage device of the present invention is schematically shown;

[0025] Figure 5A perspective view schematically shows a fixing seat of the present invention;

[0026] Figure 6 A perspective view schematically shows a lower connecting plate of the present invention;

[0027] Figure 7 A perspective view schematically shows an upper connecting plate of the present invention;

[0028] Figure 8 A perspective view of the protective cover of the present invention is schematically shown;

[0029] Fig. 9 A perspective view schematically shows a positioning pin of the present invention;

[0030] Fig.10 A perspective view of a guide rod according to the present invention is schematically shown.

[0031] The above drawings include the following reference numerals:

[0032] 10. Fixing seat; 11. Guide hole; 12. Guide rod; 20. Lower connecting plate; 30. Upper connecting plate; 40. Quick connector assembly; 41. First connector end; 42. Second connector end; 50. Second oil pipe; 60. Driving device; 61. Piston rod; 70. Detection element; 80. Positioning assembly; 81. Positioning hole; 82. Positioning pin; 90. Cleaning device; 91. Cleaning air interface; 92. Jet pipe; 93. Air supply pipe; 100. First oil pipe; 110. Oil plug; 120. Workbench; 130. Protective cover. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0035] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations, and the spatially relative descriptions used herein are interpreted accordingly.

[0036] See also Figures 1 to 10 As shown, according to an embodiment of the present invention, a machine tool is provided. The machine tool in this embodiment includes a machine tool fixture quick-plug oil circuit device, wherein the machine tool fixture quick-plug oil circuit device includes a fixed seat 10, a lower connecting plate 20, an upper connecting plate 30, a quick-plug connector assembly 40 and a driving device 60.

[0037] Among them, the lower connecting plate 20 can be installed on the fixed base 10 in a liftable manner; the upper connecting plate 30 is fixedly installed on the workbench 120 and is located above the fixed base 10; the quick-connect connector assembly 40 includes a first connector end 41 and a second connector end 42 that are mutually matched and connected, the first connector end 41 is installed on the lower connecting plate 20 and is connected to the first oil pipe 100, and the second connector end 42 is installed on the upper connecting plate 30 and is connected to the second oil pipe 50; the driving device 60 is installed on the fixed base 10 to drive the lower connecting plate 20 to rise and fall.

[0038] In actual operation, when the workbench 120 moves to the fixed seat 10, it can drive the upper connecting plate 30 to move above the upper connecting plate 30. At this time, the driving action of the driving device 60 can make the lower connecting plate 20 rise and move toward the upper connecting plate 30, thereby making the first joint end 41 and the second joint end 42 quickly plugged in. After the first joint end 41 and the second joint end 42 are plugged in place, the first oil pipe 100 and the second oil pipe 50 facilitate the supply of oil to the fixture on the machine tool. The use of the workbench fixture quick plug oil circuit device of the present invention improves the reliability of the machine tool fixture quick plug oil circuit device, while the number of parts is small, the structure is simple, and the assembly is easy, and the processing cost and labor cost are low.

[0039] Since movement errors may occur between the workbench 120 and the lower connecting plate 20 during movement, in order to prevent the first joint end 41 and the second joint end 42 from being damaged due to inability to accurately connect, a positioning assembly 80 is provided between the lower connecting plate 20 and the upper connecting plate 30 in this embodiment. Through the action of the positioning assembly 80, it is convenient to accurately align the upper connecting plate 30 and the lower connecting plate 20, thereby ensuring that the first joint end 41 and the second joint end 42 can be accurately connected.

[0040] Preferably, the positioning assembly 80 in this embodiment includes a positioning hole 81 and a positioning pin 82. In actual design, one of the positioning hole 81 and the positioning pin 82 is set on the top surface of the lower connecting plate 20, and the other is set on the bottom surface of the upper connecting plate 30, and the length of the positioning pin 82 protruding from the lower connecting plate 20 or the upper connecting plate 30 is greater than the length of the first joint end 41 and the second joint end 42 protruding from the lower connecting plate 20 or the upper connecting plate 30. When the lower connecting plate 20 moves toward the upper connecting plate 20, the positioning pin 82 can be preferentially inserted into the positioning hole 81 to achieve accurate positioning of the upper connecting plate 30 and the lower connecting plate 20, and then the first joint end 41 and the second joint end 42 can be plugged together, which can effectively prevent the quick-connect connector assembly 40 from being damaged.

[0041] It should be noted that the length of the positioning pin 82 protruding from the lower connecting plate 20 or the upper connecting plate 30 in this embodiment is greater than the length of the first joint end 41 and the second joint end 42 protruding from the lower connecting plate 20 or the upper connecting plate 30, which means that when the positioning pin 82 is on the first joint end 41 or the positioning pin 82 and the second joint end 42 are simultaneously on the connecting plate 30 or the lower connecting plate 20, the protruding length of the positioning pin 82 is greater than the length of the first joint end 41 and the second joint end 42 when compared with the length of the positioning pin 82 and the first joint end 41 or the length of the positioning pin 82 and the second joint end 42.

[0042] The end of the positioning pin 82 in this embodiment is a conical head. During actual positioning, the conical head can be gradually inserted into the positioning hole 81 to achieve positioning. The structure is simple and easy to implement.

[0043] In order to enable the lower connecting plate 20 to stably rise and fall under the drive of the driving device 60, a guide hole 11 is provided on the fixing seat 10 in this embodiment, a guide rod 12 is provided in the guide hole 11, and the lower connecting plate 20 is fixed to the top of the guide rod 12. Preferably, the guide rod 12 in this embodiment is installed in the guide hole 11 through a bearing, and the structure is stable and reliable.

[0044] See again 1 to Figure 4As shown, the machine tool fixture quick-plug oil circuit device in this embodiment also includes a cleaning device 90, which is installed on the lower connecting plate 20 and / or the upper connecting plate 30. Through the action of the cleaning device 90, it is convenient to clean the quick-plug connector assembly 40, and the mating surface of the quick-plug connector assembly 40 is kept clean at all times to prevent cutting slag, dust, etc. from affecting the insertion of the quick-plug connector assembly 40.

[0045] Specifically, the cleaning device 90 in this embodiment includes a clean air interface 91, an air jet pipe 92 and an air supply pipe 93, wherein the clean air interface 91 is installed on the lower connecting plate 20 and / or the upper connecting plate 30; the air jet pipe 92 is connected to the top of the clean air interface 91, and the outlet of the air jet pipe 92 is facing the quick-connect connector assembly 40, which is convenient for cleaning the quick-connect connector assembly 40; the air supply pipe 93 is connected to the bottom end of the clean air interface 91, which is convenient for conveying clean air to the air jet pipe 92, effectively preventing hydraulic system leakage caused by dust, cutting slag, etc., and ensuring the reliability of docking of the quick-connect connector assembly 40.

[0046] In this embodiment, there are multiple quick-connect connector assemblies 40 and multiple cleaning devices 90 , and the multiple quick-connect connector assemblies 40 are arranged in a one-to-one correspondence with the multiple cleaning devices 90 , which is convenient for specific arrangement according to the fixture on the workbench 120 .

[0047] Preferably, the machine tool fixture quick-plug oil circuit device in this embodiment also includes a protective cover 130, which is arranged around the outer periphery of the upper connecting plate 30 to facilitate the protection of the quick-plug connector assembly 40 and prevent cutting slag, dust, etc. from falling on the quick-plug connector assembly 40.

[0048] See again Figures 1 to 10 As shown, the machine tool fixture quick-insertion oil circuit device in this embodiment also includes a controller, a detection element 70 connected to the controller, and an oil plug 110 arranged on the first oil pipe 100. The detection element 70 is arranged on the driving device 60. After the detection element 70 detects that the first joint end 41 and the second joint end 42 are plugged in place, the controller controls the oil plug 110 to open the first oil pipe 100 and supply oil to the second oil pipe 50.

[0049] The driving device 60 in this embodiment is a thin oil cylinder, and the piston rod 61 of the thin oil cylinder is drivingly connected to the lower connecting plate 20. The detection element 70 is a displacement sensor arranged on the piston rod 61 of the thin oil cylinder. In actual design, the thin oil cylinder used has a magnet inside, and the position of the piston rod 61 is sensed by the magnetic reed of the displacement sensor, which greatly simplifies the structure and has high detection reliability.

[0050] According to the above embodiments, the machine tool fixture quick plug oil circuit device of the present invention realizes the function of quickly releasing and clamping the hydraulic fixture by adding the machine tool fixture quick plug oil circuit device at the end of the workbench 120. The machine tool fixture quick plug oil circuit device is suitable for machine tools with linear motion of the workbench and fixtures requiring multi-way oil supply, realizing full automation of the machine tool.

[0051] In actual operation: after the workbench 120 moves to a fixed position, the piston rod 61 of the thin oil cylinder extends upward, driving the lower connecting plate 20 and the structure thereon to move upward slowly. When it moves to a certain position, the positioning pin 82 on the upper connecting plate 30 first matches with the positioning hole 81 on the lower connecting plate 20, and then the first joint end 41 and the second joint end 42 match to prevent damage to the quick-connect joint assembly 40. After the piston rod 61 of the thin oil cylinder moves up to the position, the detection element 70 sends a line signal in place, and the first joint end 41 and the second joint end 42 start to connect the oil supply, realizing the oil supply circuit for the fixture to go back and forth.

[0052] Before the first connector end 41 and the second connector end 42 are connected, the cleaning device 90 starts to clean the first connector end 41 of the quick connector assembly 40 and cleans the quick connector assembly 40 during the entire docking process. The blowing stops after the quick connector assembly 40 is completely loosened. The lower connecting plate 20 is internally designed with a flow channel for air cleaning. The air enters the air supply pipe 93 from the lower end. The left and right sides are designed separately to ensure that a sufficient amount of clean air flow is introduced.

[0053] The oil supply action sequence is: the thin cylinder rises → the positioning assembly cooperates → the quick-connect joint assembly cooperates → the thin cylinder is in place → the oil circuit is connected for supply → after the supply is completed, the quick-connect joint assembly oil circuit is closed → the thin cylinder descends → the pregnancy test is carried out and the test is in place → completed.

[0054] From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: The present invention. The oil circuit of the quick-connect connector assembly is opened and closed by pushing the lower connecting plate up and down by a thin oil cylinder. The overall structure is simple, the number of parts is small, it is easy to manufacture and assemble, and the manufacturing cost is greatly reduced. The present invention is also provided with a positioning pin to ensure the precise and accurate matching of the quick-connect connector assembly. At the same time, through the cleaning device and the protective cover, the hydraulic system leakage caused by dust, cutting, etc. is effectively prevented to ensure the reliability of the quick-connect connector docking. The present invention easily realizes the multi-channel oil circuit feeding supply of the workbench. Due to the use of oil cylinder pushing and relying on the weight of the workbench itself, high-pressure oil supply can be achieved, and the oil pressure range can reach 0-70MPa. The thin oil cylinder is equipped with a magnet inside, and the piston rod position is detected by a displacement sensor, which greatly simplifies the structure and has high detection reliability.

[0055] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A quick-insert oil circuit device for a machine tool fixture, characterized in that: include: Fixed seat (10); A lower connecting plate (20), the lower connecting plate (20) being mounted on the fixing seat (10) in a liftable manner; An upper connecting plate (30), the upper connecting plate (30) being fixedly mounted on the workbench (120) and located above the fixing seat (10); A quick-connect connector assembly (40), the quick-connect connector assembly (40) comprising a first connector end (41) and a second connector end (42) which are mutually matched and connected, the first connector end (41) being mounted on the lower connecting plate (20) and connected to the first oil pipe (100), and the second connector end (42) being mounted on the upper connecting plate (30) and connected to the second oil pipe (50); A driving device (60), the driving device (60) being mounted on the fixing seat (10) to drive the lower connecting plate (20) to rise and fall; A positioning assembly (80) is provided between the lower connecting plate (20) and the upper connecting plate (30); The positioning assembly (80) comprises a positioning hole (81) and a positioning pin (82), one of the positioning hole (81) and the positioning pin (82) being arranged on the top surface of the lower connecting plate (20), and the other of the positioning hole (81) and the positioning pin (82) being arranged on the bottom surface of the upper connecting plate (30), and the length of the positioning pin (82) protruding from the lower connecting plate (20) or the upper connecting plate (30) is greater than the length of the first joint end (41) and the second joint end (42) protruding from the lower connecting plate (20) or the upper connecting plate (30); The end of the positioning pin (82) is a conical head; The machine tool fixture quick-insert oil circuit device further comprises a cleaning device (90), wherein the cleaning device (90) is mounted on the lower connecting plate (20) and / or the upper connecting plate (30); The cleaning device (90) comprises: A clean air interface (91), wherein the clean air interface (91) is installed on the lower connecting plate (20) and / or the upper connecting plate (30); An air jet pipe (92), the air jet pipe (92) being connected to the top end of the clean air interface (91), and the outlet of the air jet pipe (92) facing the quick-connect connector assembly (40); An air supply pipe (93), the air supply pipe (93) being connected to the bottom end of the clean air interface (91); There are multiple quick-connect connector assemblies (40) and multiple cleaning devices (90), and the multiple quick-connect connector assemblies (40) and the multiple cleaning devices (90) are arranged in a one-to-one correspondence.

2. The machine tool fixture quick-insert oil circuit device according to claim 1, characterized in that: The fixing seat (10) is provided with a guide hole (11), a guide rod (12) is provided in the guide hole (11), and the lower connecting plate (20) is fixed to the top end of the guide rod (12).

3. The quick-insert oil passage device for machine tool fixtures according to claim 2, characterized in that: The guide rod (12) is installed in the guide hole (11) via a bearing.

4. The machine tool fixture quick-insert oil circuit device according to claim 1, characterized in that: The machine tool fixture quick-insert oil passage device further comprises a protective cover (130), and the protective cover (130) is arranged around the outer periphery of the upper connecting plate (30).

5. The machine tool fixture quick-insert oil passage device according to any one of claims 1 to 4, characterized in that: The machine tool fixture quick-insertion oil circuit device also includes a controller, a detection element (70) connected to the controller, and an oil plug (110) arranged on the first oil pipe (100); the detection element (70) is arranged on the drive device (60); after the detection element (70) detects that the first connector end (41) and the second connector end (42) are plugged in place, the controller controls the oil plug (110) to open the first oil pipe (100).

6. The quick-insert oil passage device for machine tool fixtures according to claim 5, characterized in that: The driving device (60) is a thin oil cylinder, and the piston rod (61) of the thin oil cylinder is drivingly connected to the lower connecting plate (20).

7. The quick-insert oil passage device for machine tool fixtures according to claim 6, characterized in that: The detection element (70) is a displacement sensor arranged on the piston rod (61) of the thin oil cylinder.

8. A machine tool, comprising a fixture quick-insert oil circuit device, characterized in that: The clamp quick-insert oil passage device is the machine tool clamp quick-insert oil passage device according to any one of claims 1 to 7.

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