Machine tool fixture assembly and machine tool

Abstract

The present invention discloses a machine tool fixture assembly and a machine tool, and relates to the technical field of machine tool fixtures, including a base plate, on which a plurality of plug holes for positioning, locking and installing the fixture body are equidistantly provided in a rectangular array. The present invention can quickly and accurately position and install the fixture body through the setting of a connecting component, and realizes the rapid replacement of the position of the fixture body through a convenient plug-in installation method, ensuring smooth and efficient operation. In addition, the combination of the first worm gear and the first worm enables the connecting component to have a self-locking function, enhances the stability during use, and directly improves the accuracy of workpiece processing. In addition, the connecting component also has a rapid positioning and installation mechanism, which increases the flexibility of adjusting the position of the fixture body, allowing the operator to instantly adjust the position of the fixture body according to specific processing requirements, optimizes the workflow, and brings a better and more convenient experience to the processing personnel.

Description

Technical Field

[0001] The invention relates to the technical field of machine tool fixtures, and in particular to a machine tool fixture assembly and a machine tool. Background Art

[0002] A machine tool fixture is a device used on a machine tool to clamp workpieces and guide cutting tools. It is designed specifically for a certain process of a certain workpiece and has the characteristics of compact structure, quick, convenient and labor-saving operation. It can stably guarantee processing quality, improve labor productivity, reduce the labor intensity of workers, ensure safe production, and expand the scope of application of machine tools. A machine tool fixture is a device used on a machine tool to clamp workpieces and guide cutting tools. It determines the correct position of the workpiece in the fixture by contacting the workpiece positioning reference, thereby ensuring the relative correct position of the workpiece relative to the cutting tool and the machine tool processing movement during processing.

[0003] In the prior art, a Chinese patent with announcement number CN105643321B discloses a machine tool fixture to solve the above-mentioned technical problems. The technical solution disclosed in the patent document is as follows: a machine tool fixture, which includes a base plate, a plurality of positioning holes are provided at equal intervals on the base plate, and a positioning mechanism and a locking mechanism are installed on the base plate, wherein the positioning mechanism is used to position the workpiece to be processed at a preset position on the base plate, and the positioning mechanism includes a positioning base and a positioning block, the positioning base is fixed to the base plate by connecting the positioning holes with screws, a mounting groove is recessed in the middle of the upper surface of the positioning base, the positioning block is installed in the mounting groove, and the locking mechanism locks the workpiece to be processed to the positioning block. Although the patent can realize orderly clamping of the workpiece, it is difficult to process various forms. Specifically, whenever encountering workpieces of different shapes, the corresponding special fixtures must be replaced to ensure that the workpieces can be accurately positioned and firmly clamped. This reliance on specific fixtures not only increases the reserve cost of the fixtures, but also limits the flexibility and adaptability of the production line. In addition, the patent adopts a bolt connection method to fix the fixture to the base plate in design. This connection method requires the staff to repeatedly install and disassemble the bolts every time the workpiece shape is changed. This process is not only time-consuming and increases the overall processing cycle, but also directly leads to a slowdown in the processing speed of the workpiece and a significant increase in the labor intensity of the staff. Frequent bolt operations are not only inefficient, but may also lead to human errors due to repetitive labor, further affecting the processing quality and production safety. Summary of the invention

[0004] The object of the present invention is to provide a machine tool fixture assembly and a machine tool to solve the problem in the above-mentioned background technology that bolts need to be repeatedly disassembled and installed before the fixture can be replaced, and the clamping form of the fixture is single.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] The machine tool fixture assembly includes a bottom plate, on which a plurality of plug holes for positioning, locking and installing the fixture body are equidistantly arranged in a rectangular array, and the fixture body includes a connecting component and a clamping component, the connecting component is plugged into the inside of the plug hole, and is used to lock and fix the fixture body, and the clamping component is rotatably connected to the top of the connecting component, and is used to position and clamp the workpiece to be processed;

[0007] The connecting component includes a plug-in column, which is plugged into the inside of the plug-in hole. The plug-in column is arranged in a cubic shape, and the bottom end of the plug-in column is arranged in a frustum shape. The inside of the plug-in column is provided with an installation cavity for installing the parts of the connecting component. The top of the plug-in column is fixedly installed with a lower top plate, and the top of the inner top of the mounting cavity of the plug-in column is fixedly installed with a mounting seat, the inside of the mounting seat is rotatably connected to a first worm gear, the inside of the mounting seat is rotatably connected to a first worm, and the first worm and the first worm wheel are meshingly connected, a first screw is fixedly installed in the center of the first worm wheel, and the end of the first screw away from the first worm gear is rotatably connected to a fixing frame, and the fixing frame is fixedly installed inside the mounting seat.

[0008] By adopting the above technical solution, in the process of workpiece processing, in order to ensure accurate processing, the workpiece to be processed needs to be accurately positioned and firmly clamped. At this time, the staff will flexibly adjust the spacing between multiple fixture bodies according to the specific size and shape of the workpiece. In order to simplify this adjustment process, the fixture body can be quickly and accurately installed through a fixture body with a convenient connection component, which greatly improves the installation efficiency. Furthermore, the clamping component equipped on the top of the connection component has a high degree of flexibility, allowing the staff to easily rotate its angle to adapt to and firmly clamp workpieces of various shapes. The versatility and multi-shape adaptability of the clamping component, combined with the adjustment of the fixture body spacing, enables the same set of fixtures to meet the clamping needs of workpieces of different shapes without the need to frequently replace the fixture body, thereby significantly improving the flexibility and efficiency of production and processing. In addition, the introduction of the connection component also gives the fixture body a stronger position adjustment capability, enabling the staff to quickly adjust the fixture position according to the actual processing scenario, further optimizing the workflow, and bringing great convenience to the processing personnel. In summary, the fixture body not only improves the processing accuracy, but also significantly enhances the convenience of operation and production efficiency.

[0009] A further improvement of the technical solution of the present invention is that: the connecting assembly also includes a connecting frame, which is threadedly connected to the first screw rod, and the bottom end of the connecting frame is symmetrically rotatably connected to two transmission arms, and the ends of the two transmission arms away from the connecting frame are respectively rotatably connected to the two clamping blocks, and the two clamping blocks are respectively slidably connected to the two sides of the mounting seat, a first motor is fixedly installed on one side of the plug-in column, and the output end of the first motor passes through the side wall of the plug-in column and is fixedly connected to one end of the first worm gear, an extension arm is equidistantly fixedly installed on the top end of the plug-in column, and the extension arm is fixedly connected to the lower surface of the lower top plate, and a sliding groove is provided at the bottom end of the plug-in column.

[0010] By adopting the above technical solution, when the position of the clamp body needs to be adjusted, the staff can control the first motor to start by pressing the touch switch, and drive the first worm gear and the first worm gear to rotate by the first motor, and the first worm gear is fixedly connected to the first screw rod. As the first screw rod continues to rotate, the first screw rod will drive the connecting frame to move along the installation cavity inside the plug-in column. As the connecting frame moves, the connecting frame will pull the clamping block through the transmission support arm, so that the two clamping blocks move toward each other, thereby releasing the clamping connection relationship between the connecting assembly and the plug-in hole. Subsequently, the staff will move the entire clamp body from The clamp body is taken out from the base plate, and then the position of the clamp body is changed according to the actual processing requirements. After the position is determined, the staff inserts the plug-in column into the plug-in hole on the base plate. At this time, the first motor is turned on by pressing the touch switch again, and the two clamping blocks are driven to move in opposite directions along the sliding groove through the first worm gear and the first worm gear in conjunction with the connecting frame and the transmission arm, thereby making the clamp block squeeze and fit with the inner wall of the plug-in hole, so that the clamp body is fixed. The setting of the first worm gear and the first worm gear makes the connecting component have a self-locking mechanism, which further increases the stability of the connecting component during use, thereby increasing the accuracy of the workpiece during processing.

[0011] It should also be noted that the setting of the extended arm creates a partition between the lower top plate and the bottom plate. When the connecting component is inserted into the plug-in hole, this design plays a key restrictive role. Specifically, the lower end surface of the extended arm will precisely fit in contact with the upper surface of the bottom plate. This contact point not only stabilizes the position of the connecting component, but also cleverly serves as an indicator of the plug-in depth. In other words, when you feel the extended arm lightly touch the bottom plate, it means that the connecting component has reached the preset plug-in depth, thereby ensuring the accuracy and stability of the connection, and further increasing the convenience of the connecting component when in use.

[0012] A further improvement of the technical solution of the present invention is that touch switches for opening and closing the connection components are fixedly installed at equal intervals on the lower surface of the lower top plate.

[0013] By adopting the above technical solution and configuring multiple touch switches, the operation of the connecting components becomes more convenient. There is no need for the staff to deliberately look for the switch position, which effectively prevents the embarrassing situation that the switch is difficult to reach because it is located just under the workpiece, greatly improving the efficiency and convenience of use. At the same time, the ingenious design of the extended arm not only provides a safe installation environment for the touch switch, reducing the possibility of accidental touch, but also enhances the stability of the entire device during operation, ensuring the reliable operation of the equipment.

[0014] A further improvement of the technical solution of the present invention is that the plug-in hole is arranged in a rectangular through-hole shape, with thin ends of the plug-in hole and thick middle part.

[0015] By adopting the above technical solution, the plug-in hole arranged with a rectangular perforation can form a stable plug-in fit with the plug-in column arranged with a cube, further increasing the stability and fit of the connecting component during plug-in. In addition, the thick setting of the middle section of the plug-in hole can form a precise extrusion fit with the clamping block, thereby increasing the stability of the connecting component during plug-in and further ensuring the accuracy of the workpiece during processing.

[0016] The further improvement of the technical scheme of the present invention is that: the clamping assembly includes an upper top plate rotatably connected to the top end of the lower top plate, a fixing seat is fixedly installed on the top end of the upper top plate, and bottom frames are symmetrically fixedly installed on both sides of the fixing seat, and the top ends of the two bottom frames are respectively fixedly connected to the bottom ends of the mounting frame, one end of the mounting frame is symmetrically fixedly connected to a hydraulic cylinder, and a cross bar is symmetrically slidably installed inside the mounting frame, and one end of the output rod of the hydraulic cylinder is rotatably connected to the cross bar through a bracket; a pressure block is slidably connected to the inside of the mounting frame through the cross bar, and guide grooves that are symmetrically opened in the pressure block for sliding cooperation with the cross bar are installed in the guide groove, and an auxiliary structure that is extruded and cooperated with the cross bar is installed in the guide groove, an upper top spring sheet is fixedly installed on the top end of the fixed seat, and the upper top spring sheet is in extrusion contact with the pressure block, a matching seat that is extruded and cooperated with the pressure block is fixedly installed on one end of the upper surface of the upper top plate, and an extension structure is fixedly installed on the top end of the pressure block.

[0017] By adopting the above technical solution, when it is necessary to clamp the workpiece, the staff first adjusts the position of the clamp through the connecting assembly according to the actual shape of the workpiece. After that, the hydraulic cylinder starts to work, and the pressure block is driven by the hydraulic cylinder to move, and the cross bar moves along the guide groove on the pressure block. As the pressure block moves, the workpiece can be clamped by the extension structure on the top of the pressure block, thereby realizing the positioning and clamping of the workpiece. When clamping the sheet material, the above steps are repeated again. First, the sheet material is placed on the matching seat, and the sheet material is pressed by the movement of the pressure block. In the process of pressing, in order to avoid damage to the sheet material, the guide groove on the pressure block is provided with an auxiliary structure, which can be adjusted according to the actual contact pressure.

[0018] A further improvement of the technical solution of the present invention is that the auxiliary structure includes a plurality of sliding chambers opened on the lower surface of the guide groove of the pressing block, a plurality of extrusion columns are slidably connected inside the plurality of sliding chambers, and one end of the extrusion columns extends to the guide groove of the pressing block, and an air injection hole is opened on the side wall of the pressing block.

[0019] By adopting the above technical solution, when the plate is pressed, the hydraulic cylinder drives the pressing block to move along the guide groove on the pressing block. As the pressing block moves, the cross bar will gradually come into contact with the auxiliary structure. When the pressure of the pressing block on the plate is too great, the cross bar will squeeze the extrusion column. As the extrusion column is squeezed, it will shrink into the inside of the sliding chamber, and the cross bar will move to the next extrusion column. If the pressure is still too great, the cross bar will compress the extrusion column again and move to the next gear. As the gear of the cross bar is gradually adjusted, the pressing force of the pressing block on the plate will gradually decrease, thereby avoiding damage to the plate caused by excessive pressure. The gas injection holes on the side wall of the pressing block can facilitate the staff to inject gas into the inside of the sliding chamber.

[0020] A further improvement of the technical solution of the present invention is that the extension structure includes a mounting column fixedly installed on the top of the pressing block, a second motor is fixedly installed inside the mounting column, a bidirectional screw rod is rotatably connected inside the mounting column, the output end of the second motor is fixedly connected to one end of the bidirectional screw rod, two sliding sleeves are symmetrically threaded on the bidirectional screw rod, both ends of the two sliding sleeves are rotatably connected to transmission rods, and one end of the transmission rod away from the sliding sleeve is rotatably connected to the card seat, the two card seats are symmetrically slidably connected inside the mounting column, external support frames are symmetrically fixedly installed on both sides of the top of the mounting column, a button is fixedly installed on one end of the fixed seat, and the button is electrically connected to the second motor.

[0021] By adopting the above technical scheme, when clamping the workpiece, the oblique movement of the pressure block will drive the rod extension structure to clamp the surface of the workpiece, and when a higher workpiece is clamped in combination, the staff can fix several clamps on the bottom plate to form a first-layer frame. As the second motor is driven by the button to work, the second motor will drive the bidirectional screw to rotate. As the bidirectional screw rotates, the sleeves symmetrically arranged on the bidirectional screw will move toward each other. As the sleeves move toward each other, the transmission rods on both sides thereof will rotate outward. As the transmission rod rotates, the transmission rod will push the holder to extend to the outside of the mounting column, and be clamped with the expansion plate through the holder. Afterwards, the second-layer frame is fixed on the expansion plate again according to the actual size of the workpiece, and stable clamping of the higher workpiece is achieved through the frames on both sides. In order to increase the plug-in stability of the expansion plate on the mounting column, the top of the mounting column is symmetrically provided with an outer support frame for supporting the expansion plate.

[0022] A further improvement of the technical solution of the present invention is that a splicing assembly is fixedly installed on the outer ring of the base plate, and the splicing assembly includes an outer frame, which is fixedly installed on the outer ring of the base plate, and mounting blocks are symmetrically fixedly installed on the left and rear sides of the outer frame, and the mounting block is rotatably connected to a swing arm through a torsion spring, and the end of the swing arm away from the mounting block is rotatably connected to a clamping block, and the right and front sides of the outer frame are symmetrically provided with plug-in grooves that are slidably engaged with the clamping block.

[0023] By adopting the above technical solution, when the workspace demand expands, the staff can flexibly splice and expand the two base plates according to the specific requirements of the operation. During this process, the staff will first rotate the swing arm and the attached card block on one set of outer frames 90 degrees clockwise or counterclockwise around the mounting block to turn the swing arm and the card block into a horizontal posture so as to accurately dock with the plug-in slot on the corresponding side length of the other set of outer frames. As the card block slides smoothly into the corresponding plug-in slot, the built-in torsion spring will prompt the swing arm and the card block to rotate in the opposite direction and reset, returning to the vertical state again, to achieve a stable snap connection. This fast and convenient assembly mechanism not only greatly improves the flexibility and adaptability of the processing platform, ensuring that it can be quickly adjusted according to the actual needs of workpiece processing, but also enhances the stability and matching accuracy of the base plate during assembly through the snap-fit ​​structure.

[0024] A further improvement of the technical solution of the present invention is that bottom pads for raising the outer frame are fixedly installed at the four corners of the lower surface of the outer frame.

[0025] By adopting the above technical solution, the bottom pads arranged at the four corners of the lower surface of the outer frame can increase the friction between the device and the machine tool, and increase the stability of the device during use. In addition, a certain gap can be created between the bottom plate and the machine tool, so that the staff can better clean the processing debris entering the plug hole.

[0026] The present invention also provides a machine tool, comprising any one of the above-mentioned machine tool fixture assemblies.

[0027] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art:

[0028] 1. The present invention can quickly and accurately position and install the fixture body through the setting of the connecting component. Through the convenient plug-in installation method, the position of the fixture body can be quickly replaced, ensuring smooth and efficient operation. In addition, the combination of the first worm gear and the first worm enables the connecting component to have a self-locking function, which enhances the stability during use and directly improves the accuracy of workpiece processing. In addition, the connecting component also has a quick positioning and installation mechanism, which increases the flexibility of adjusting the position of the fixture body, allowing the operator to instantly adjust the position of the fixture body according to specific processing requirements, optimizing the workflow, and bringing a better and more convenient experience to the processing personnel. In summary, the connecting component not only significantly improves the processing accuracy, but also enhances the convenience of operation and production efficiency.

[0029] 2. The connection component in the present invention also has a multi-point touch-pressure mechanism, which greatly optimizes the operating experience of the connection component. This mechanism makes it easier for the staff to operate the connection component. Both the installation and positioning process are easier and faster due to the multi-point touch-pressure design. This humanized design reduces the difficulty of operation, improves work efficiency, and enables the staff to complete the connection and positioning of the fixture body more efficiently.

[0030] 3. The present invention greatly broadens the application scope of the fixture body through the setting of the clamping component. It can quickly adapt to and firmly clamp workpieces of various shapes. Through the combination of the clamping component and the expansion plate, the workpiece can be quickly clamped at multiple levels according to the actual clamping needs of the workpiece, further increasing the stability of the workpiece during the processing. In addition, by connecting the component and the clamping component to form a multi-form combination, it can adapt to workpieces of different shapes, further improving the convenience of the device for processing workpieces. At the same time, it can reduce the number of specific fixtures and reduce production costs.

[0031] 4. In the present invention, the auxiliary structure is set to avoid the damage to the sheet material caused by the pressing block during the process of clamping the sheet material. The multi-speed adjustment mechanism can increase the adaptability of the device and the feedback sensitivity to the pressure, so that the sheet material can be protected during the clamping process to avoid damage to the sheet material. The pressure of the gear can be limited by the precise numerical setting of the air pressure, which further increases the accuracy of the auxiliary structure when in use, and can better protect the sheet material.

[0032] 5. The present invention allows the staff to flexibly adjust the size of the processing platform according to the actual needs of the workspace through the setting of the splicing components to adapt to the processing tasks of workpieces of different sizes and complexities, which greatly improves the adaptability and flexibility of the processing platform. The two base plates can be accurately docked and firmly connected by simply rotating the swing arm and its clamping block clockwise or counterclockwise. This process is fast and intuitive, reducing assembly time and labor costs. In addition, this fast and convenient assembly mechanism enables the processing platform to be quickly adjusted according to the specific requirements of the workpiece processing, reducing the time wasted due to platform adjustment, thereby improving the overall processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The present invention will be further described below in conjunction with the accompanying drawings.

[0034] Figure 1 It is a schematic structural diagram of the overall first viewing angle of the device of the present invention;

[0035] Figure 2 It is a schematic structural diagram of the overall second viewing angle of the device of the present invention;

[0036] Figure 3 It is a structural schematic diagram of the bottom plate of the present invention;

[0037] Figure 4 It is a structural schematic diagram of the double-layer clamp and the expansion board combination of the present invention;

[0038] Figure 5 It is a structural schematic diagram of the clamp of the present invention;

[0039] Figure 6 It is a structural schematic diagram of the connection assembly of the present invention;

[0040] Figure 7 It is a half-section structural schematic diagram of the connection assembly of the present invention;

[0041] Figure 8 It is a schematic diagram of the structure of the clamping assembly of the present invention;

[0042] Fig. 9 It is a half-section structural schematic diagram of the clamping assembly of the present invention;

[0043] Fig.10 It is a structural schematic diagram of the extended structure of the present invention;

[0044] Fig.11 It is a schematic diagram of a half-section structure of the auxiliary structure of the present invention;

[0045] Fig.12 It is a structural schematic diagram of the splicing assembly of the present invention from a first viewing angle;

[0046] Fig.13 It is a structural schematic diagram of the splicing assembly of the present invention from a second viewing angle.

[0047] In the figure: 1, bottom plate; 2, plug hole; 3, connecting assembly; 4, clamping assembly; 5, splicing assembly; 6, plug column; 7, lower top plate; 8, mounting seat; 9, first worm gear; 10, first worm; 11, first screw; 12, fixing frame; 13, connecting frame; 14, transmission arm; 15, clamping block; 16, first motor; 17, sliding groove; 18, extension arm; 19, touch switch; 20, upper top plate; 21, fixing seat; 22, bottom frame; 23 , mounting frame; 24, hydraulic cylinder; 26, pressure block; 27, cross bar; 28, auxiliary structure; 29, upper spring piece; 30, matching seat; 31, mounting column; 32, second motor; 33, two-way screw rod; 34, sliding sleeve; 35, transmission rod; 36, clamping seat; 37, outer support frame; 38, sliding chamber; 39, extrusion column; 40, outer frame; 41, mounting block; 42, swing arm; 43, clamping block; 44, plug-in slot; 45, bottom pad; 46, button. DETAILED DESCRIPTION

[0048] The present invention is further described in detail below in conjunction with embodiments:

[0049] Example 1

[0050] like Figure 1-Figure 13 As shown, the present invention provides a machine tool fixture assembly, comprising:

[0051] The bottom plate 1 has a plurality of plug holes 2 for positioning and locking the fixture body at equal intervals in a rectangular array. The fixture body includes a connecting component 3 and a clamping component 4. The connecting component 3 is plugged into the inside of the plug hole 2 for locking and fixing the fixture body. The clamping component 4 is rotatably connected to the top of the connecting component 3 for positioning and clamping the workpiece to be processed. The connecting component 3 includes a plug column 6, which is plugged into the inside of the plug hole 2. The plug column 6 is arranged in a cubic shape, and the bottom end of the plug column 6 is arranged in a frustum shape. The inside of the plug column 6 is arranged A mounting cavity for mounting parts of the connecting assembly 3 is provided, a lower top plate 7 is fixedly mounted on the top of the plug-in column 6, a mounting seat 8 is fixedly mounted on the inner top of the mounting cavity of the plug-in column 6, the inner rotatable connection of the mounting seat 8 is a first worm gear 9, the inner rotatable connection of the mounting seat 8 is a first worm 10, and the first worm 10 and the first worm gear 9 are meshingly connected, a first screw rod 11 is fixedly mounted in the center of the first worm gear 9, the end of the first screw rod 11 away from the first worm gear 9 is rotatably connected to a fixing frame 12, and the fixing frame 12 is fixedly mounted inside the mounting seat 8.

[0052] In this embodiment, during the workpiece processing, in order to ensure precise processing, the workpiece to be processed needs to be accurately positioned and firmly clamped. At this time, the staff will flexibly adjust the spacing between multiple fixture bodies according to the specific size and shape of the workpiece. In order to simplify this adjustment process, the fixture body can be quickly and accurately installed through a fixture body with a convenient connecting component 3, which greatly improves the installation efficiency. Furthermore, the clamping component 4 equipped on the top of the connecting component 3 has a high degree of flexibility, allowing the staff to easily rotate its angle to adapt to and firmly clamp workpieces of various shapes. The versatility and multi-shape adaptability of the clamping component 4, combined with the adjustment of the fixture body spacing, enables the same set of fixtures to meet the clamping needs of workpieces of different shapes without the need to frequently replace the fixture body, thereby significantly improving the flexibility and efficiency of production and processing. In addition, the introduction of the connecting component 3 also gives the fixture body a stronger position adjustment capability, allowing the staff to quickly adjust the fixture position according to the actual processing scenario, further optimizing the workflow, and bringing great convenience to the processing personnel. In summary, the fixture body not only improves the processing accuracy, but also significantly enhances the convenience of operation and production efficiency.

[0053] Example 2

[0054] like Figure 5-Figure 7 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the connecting component 3 also includes a connecting frame 13, the connecting frame 13 is threadedly connected to the first screw rod 11, the bottom end of the connecting frame 13 is symmetrically rotatably connected to two transmission arms 14, the two transmission arms 14 are rotatably connected to the two clamping blocks 15 at one end away from the connecting frame 13, and the two clamping blocks 15 are respectively slidably connected to the two sides of the mounting seat 8, a first motor 16 is fixedly installed on one side of the plug-in column 6, and the output end of the first motor 16 passes through the side wall of the plug-in column 6 and is fixedly connected to one end of the first worm 10, an extension arm 18 is equidistantly fixedly installed on the top of the plug-in column 6, and the extension arm 18 is fixedly connected to the lower surface of the lower top plate 7, and a sliding groove 17 is provided at the bottom end of the plug-in column 6.

[0055] In this embodiment, when the position of the clamp body needs to be adjusted, the staff can press the touch switch 19 to control the first motor 16 to turn on, and the first motor 16 drives the first worm gear 9 and the first worm 10 to rotate, and the first worm gear 9 is fixedly connected to the first screw rod 11. As the first screw rod 11 continues to rotate, the first screw rod 11 will drive the connecting frame 13 to move along the installation cavity inside the plug-in column 6. As the connecting frame 13 moves, the connecting frame 13 will pull the clamping block 15 through the transmission support arm 14, so that the two clamping blocks 15 move toward each other, thereby releasing the clamping connection relationship between the connecting component 3 and the plug-in hole 2. Subsequently, the staff will move the entire clamp body. Take it out from the base plate 1, and then change the position of the fixture body according to the actual processing requirements. After determining the position, the staff will insert the plug-in column 6 into the plug-in hole 2 on the base plate 1. At this time, the first motor 16 is turned on by pressing the touch switch 19 again, and the two clamping blocks 15 are driven to move in opposite directions along the sliding groove 17 through the first worm gear 9 and the first worm 10 in cooperation with the connecting frame 13 and the transmission arm 14, so that the clamping blocks 15 are squeezed and fitted with the inner wall of the plug-in hole 2, so that the fixture body is fixed. The setting of the first worm gear 9 and the first worm 10 makes the connecting component 3 have a self-locking mechanism, which further increases the stability of the connecting component 3 during use, thereby increasing the accuracy of the workpiece during processing.

[0056] It should also be noted that the setting of the extended arm 18 forms a partition between the lower top plate 7 and the bottom plate 1. When the connecting component 3 is inserted into the plug-in hole 2, the lower end surface of the extended arm 18 will precisely fit in contact with the upper surface of the bottom plate 1. This contact point not only stabilizes the position of the connecting component 3, but also cleverly serves as an indicator of the insertion depth. In other words, when the extended arm 18 is felt to lightly touch the bottom plate 1, it means that the connecting component 3 has reached the preset insertion depth, thereby ensuring the accuracy and stability of the connection, and further increasing the convenience of the connecting component 3 when in use.

[0057] like Figure 6 As shown, in this embodiment, preferably, touch switches 19 for opening and closing the connection assembly 3 are fixedly installed at equal intervals on the lower surface of the lower top plate 7 .

[0058] In this embodiment, by configuring multiple touch switches 19, the operation of the connecting component 3 becomes more convenient, and the staff does not need to deliberately look for the switch position, which effectively prevents the embarrassing situation that the switch is difficult to reach because it is located just under the workpiece, greatly improving the efficiency and convenience of use. At the same time, the ingenious design of the extended arm 18 not only provides a safe installation environment for the touch switch 19, reducing the possibility of accidental touch, but also enhances the stability of the entire device during operation, ensuring the reliable operation of the equipment.

[0059] like Fig.12 As shown, preferably, the plug hole 2 is arranged in a rectangular through-hole shape, with the two ends of the plug hole 2 being thin and the middle section being thick.

[0060] In this embodiment, the plug-in hole 2 arranged in a rectangular perforation can form a stable plug-in fit with the plug-in column 6 arranged in a cubic shape, further increasing the stability and fit of the connecting component 3 during plug-in. In addition, the thick setting of the middle section of the plug-in hole 2 can form a precise extrusion fit with the clamping block 15, thereby increasing the stability of the connecting component 3 during plug-in and further ensuring the accuracy of the workpiece during processing.

[0061] Example 3

[0062] like Figure 8-Figure 11 As shown, on the basis of Example 1, the present invention provides a technical solution: the clamping assembly 4 includes an upper top plate 20 rotatably connected to the top of the lower top plate 7, a fixing seat 21 is fixedly installed on the top of the upper top plate 20, and bottom frames 22 are symmetrically fixedly installed on both sides of the fixing seat 21, and the tops of the two bottom frames 22 are respectively fixedly connected to the bottom ends of the mounting frames 23, one end of the mounting frame 23 is symmetrically fixedly connected to the hydraulic cylinder 24, and a cross bar 27 is symmetrically slidably installed inside the mounting frame 23, and one end of the output rod of the hydraulic cylinder 24 is passed through the bracket It is rotatably connected to the cross bar 27; the interior of the mounting frame 23 is slidably connected with a pressure block 26 through the cross bar 27, and guide grooves symmetrically provided in the pressure block 26 for sliding cooperation with the cross bar 27, and an auxiliary structure 28 for extrusion cooperation with the cross bar 27 is installed in the guide groove, and an upper top spring piece 29 is fixedly installed on the top of the fixed seat 21, and the upper top spring piece 29 is in extrusion contact with the pressure block 26, and a matching seat 30 for extrusion cooperation with the pressure block 26 is fixedly installed on one end of the upper surface of the upper top plate 20, and an extension structure is fixedly installed on the top of the pressure block 26.

[0063] In this embodiment, when it is necessary to clamp the workpiece, the staff first adjusts the position of the clamp through the connecting component 3 according to the actual shape of the workpiece. After that, the hydraulic cylinder 24 starts to work, and the cross bar 27 is driven by the hydraulic cylinder 24 to move, so that the cross bar 27 moves along the guide groove on the pressure block 26. As the cross bar 27 moves, the pressure block 26 will be driven to move diagonally downward, and then the workpiece can be clamped by the extension structure on the top of the pressure block 26, thereby realizing the positioning and clamping of the workpiece. When clamping the sheet material, the above steps are repeated again. First, the sheet material is placed on the matching seat 30, and the sheet material is pressed by the movement of the pressure block 26. During the pressing process, in order to avoid damage to the sheet material, the guide groove on the pressure block 26 is provided with an auxiliary structure 28, which can be adjusted according to the actual contact pressure.

[0064] In the process of clamping a higher workpiece, since the workpiece is higher, clamping only the bottom end of the workpiece will cause the center of gravity of the workpiece to be unstable during processing, thereby increasing the degree of danger during workpiece processing. Therefore, the staff can clamp the higher workpiece by splicing the clamps. At this time, the staff first clamps the bottom end of the workpiece through several clamps, and then connects it to the extension plate through the extension structure at the top of the clamp, and then installs the clamp on the extension plate again, thereby forming a double-layer clamp, which can clamp the top end of the workpiece, thereby increasing the stability of the workpiece during processing.

[0065] like Fig.11 As shown, in the present embodiment, preferably, the auxiliary structure 28 includes a plurality of sliding chambers 38 opened on the lower surface of the guide groove of the pressing block 26, and a plurality of extrusion columns 39 are slidably connected inside the plurality of sliding chambers 38, and one end of the extrusion columns 39 extends to the guide groove of the pressing block 26, and a gas injection hole is opened on the side wall of the pressing block 26.

[0066] In this embodiment, when the plate is pressed, the hydraulic cylinder 24 drives the cross bar 27 to move along the guide groove on the pressure block 26, and the cross bar 27 will gradually contact the auxiliary structure 28. When the pressure of the pressure block 26 on the plate is too large, the cross bar 27 will squeeze the extrusion column 39. As the extrusion column 39 is squeezed, it will shrink into the inside of the sliding chamber 38, and the cross bar 27 will move to the next extrusion column 39. If the pressure is still too large, the cross bar 27 will compress the extrusion column 39 again and move to the next gear. As the gear of the cross bar 27 is gradually adjusted, the pressing force of the pressure block 26 on the plate will gradually decrease, thereby avoiding damage to the plate caused by excessive pressure. The gas injection hole on the side wall of the pressure block 26 can facilitate the staff to inject gas into the inside of the sliding chamber 38.

[0067] like Fig.10As shown, preferably, the extension structure includes a mounting column 31 fixedly mounted on the top of the pressing block 26, a second motor 32 is fixedly mounted inside the mounting column 31, a bidirectional screw rod 33 is rotatably connected inside the mounting column 31, an output end of the second motor 32 is fixedly connected to one end of the bidirectional screw rod 33, two sleeves 34 are symmetrically threadedly connected on the bidirectional screw rod 33, both ends of the two sleeves 34 are rotatably connected to a transmission rod 35, and one end of the transmission rod 35 away from the sleeve 34 is rotatably connected to a holder 36, the two holders 36 are symmetrically slidably connected inside the mounting column 31, and external support frames 37 are symmetrically fixedly mounted on both sides of the top of the mounting column 31.

[0068] In this embodiment, when clamping the workpiece, the oblique movement of the pressure block 26 will drive the rod extension structure to clamp the surface of the workpiece. When a higher workpiece is clamped in combination, the staff can fix a number of clamps on the base plate 1 to form a first-layer frame. As the second motor 32 is driven by the button 46 to work, the second motor 32 will drive the bidirectional screw rod 33 to rotate. As the bidirectional screw rod 33 rotates, the sliding sleeves 34 symmetrically arranged on the bidirectional screw rod 33 will move toward each other. As the sliding sleeves 34 move toward each other, the transmission rods 35 on both sides thereof will rotate outward. As the transmission rod 35 rotates, the transmission rod 35 will push the clamping seat 36 to extend to the outside of the mounting column 31, and be clamped with the expansion board through the clamping seat 36. Afterwards, the second-layer frame is fixed on the expansion board again according to the actual size of the workpiece, and the stable clamping of the higher workpiece is achieved through the frames on both sides. In order to increase the plug-in stability of the expansion board on the mounting column 31, the top of the mounting column 31 is symmetrically provided with an outer support frame 37 for supporting the expansion board.

[0069] Example 4

[0070] like Fig.12 and Fig.13 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, a splicing assembly 5 is fixedly installed on the outer ring of the base plate 1, and the splicing assembly 5 includes an outer frame 40, and the outer frame 40 is fixedly installed on the outer ring of the base plate 1, and mounting blocks 41 are symmetrically fixedly installed on the left side and the rear side of the outer frame 40, and the mounting block 41 is rotatably connected to a swing arm 42 through a torsion spring, and the end of the swing arm 42 away from the mounting block 41 is rotatably connected to a clamping block 43, and the right side and the front side of the outer frame 40 are symmetrically provided with plug-in grooves 44 that are slidably engaged with the clamping block 43.

[0071] In this embodiment, when the workspace demand expands, the staff can flexibly splice and expand the two base plates 1 according to the specific requirements of the operation. During this process, the staff will first rotate the swing arm 42 and the attached block 43 on a set of outer frames 40 around the mounting block 41 clockwise or counterclockwise 90 degrees to transform the swing arm 42 and the block 43 into a horizontal posture so as to accurately dock with the plug-in slot 44 on the corresponding side length of the other set of outer frames 40. As the block 43 slides smoothly into the corresponding plug-in slot 44, the built-in torsion spring will cause the swing arm 42 and the block 43 to rotate in the opposite direction and reset, returning to a vertical state again, to achieve a stable snap connection. This fast and convenient assembly mechanism not only greatly improves the flexibility and adaptability of the processing platform, ensuring that it can be quickly adjusted according to the actual needs of workpiece processing, but also enhances the stability and matching accuracy of the base plate 1 during assembly through the snap-fit ​​structure.

[0072] like Figure 3 As shown, preferably, bottom pads 45 for raising the outer frame 40 are fixedly installed at four corners of the lower surface of the outer frame 40 .

[0073] In this embodiment, the bottom pads 45 arranged at the four corners of the lower surface of the outer frame 40 can increase the friction between the device and the machine tool, and increase the stability of the device when in use. In addition, a certain gap can be created between the base plate 1 and the machine tool so that the staff can better clean the processing debris entering the plug hole 2.

[0074] The present invention also provides a machine tool, comprising any one of the above-mentioned machine tool fixture assemblies.

[0075] The working principle of the machine tool fixture assembly is explained in detail below.

[0076] like Figure 1-Figure 13 As shown, during the process of processing the workpiece, the staff first flexibly adjusts the spacing between the multiple fixture bodies according to the specific size and shape of the workpiece, and quickly and accurately positions and installs the multiple fixture bodies through the connecting component 3;

[0077] At this time, the staff can control the first motor 16 to start by pressing the touch switch 19, and drive the first worm gear 9 and the first worm 10 to rotate through the first motor 16, and the first worm gear 9 is fixedly connected to the first screw rod 11. As the first screw rod 11 continues to rotate, the first screw rod 11 will drive the connecting frame 13 to move along the installation cavity inside the plug-in column 6. As the connecting frame 13 moves, the connecting frame 13 will pull the clamping block 15 through the transmission support arm 14, so that the two clamping blocks 15 move toward each other, thereby releasing the clamping fit between the connecting component 3 and the plug-in hole 2. After that, the staff takes out the whole fixture body from the bottom plate 1, and then changes the position of the fixture body according to the actual processing requirements. After determining the position, the staff inserts the plug-in column 6 into the plug-in hole 2 on the bottom plate 1. At this time, the first motor 16 is turned on by pressing the touch switch 19 again, and the two clamping blocks 15 are driven to move in opposite directions along the sliding groove 17 through the first worm gear 9 and the first worm 10 in cooperation with the connecting frame 13 and the transmission support arm 14, so that the clamping block 15 is squeezed and matched with the inner wall of the plug-in hole 2, so that the fixture body is fixed;

[0078] When clamping the workpiece, the staff first adjusts the position of the clamp through the connecting component 3 according to the actual shape of the workpiece, and then the hydraulic cylinder 24 starts to work, driving the pressure block 26 to move through the hydraulic cylinder 24, and the cross bar 27 moves along the guide groove on the pressure block 26. As the pressure block 26 moves, the workpiece can be clamped through the extension structure on the top of the pressure block 26, thereby achieving the positioning and clamping of the workpiece. When clamping the sheet material, the above steps are repeated again. The sheet material is first placed on the matching seat 30, and the sheet material is pressed and clamped by the movement of the pressure block 26. During the pressing process, in order to avoid damage to the sheet material, the guide groove on the pressure block 26 is provided with an auxiliary structure 28, which can be adjusted according to the actual contact pressure. At this time, the hydraulic cylinder 24 drives the pressing block 26 to move along the guide groove on the pressing block 26. As the pressing block 26 moves, the cross bar 27 will gradually contact the auxiliary structure 28. When the pressure of the pressing block 26 on the plate is too large, the cross bar 27 will squeeze the squeezing column 39. As the squeezing column 39 is squeezed, it will shrink into the inside of the sliding chamber 38, and the cross bar 27 will move to the next squeezing column 39. If the pressure is still too large, the cross bar 27 will compress the squeezing column 39 again and move to the next gear. As the gear of the cross bar 27 is gradually adjusted, the pressing force of the pressing block 26 on the plate will gradually decrease, thereby avoiding damage to the plate caused by excessive pressure. The gas injection hole on the side wall of the pressing block 26 can facilitate the staff to inject gas into the inside of the sliding chamber 38;

[0079] In the process of clamping a higher workpiece, since the workpiece is higher, clamping only the bottom end of the workpiece will cause the center of gravity of the workpiece to be unstable during processing, thereby increasing the degree of danger during workpiece processing. Therefore, the staff can clamp the higher workpiece by splicing the clamps. At this time, the staff first clamps the bottom end of the workpiece with a number of clamps, and then connects the extension plate with the extension structure at the top of the clamp, and then installs the clamp on the extension plate again, thereby forming a double-layer clamp, which can clamp the top end of the workpiece, thereby increasing the stability of the workpiece during processing;

[0080] When the demand for working space expands, the staff can flexibly splice and expand the two base plates 1 according to the specific requirements of the operation. During this process, the staff will first rotate the swing arm 42 and the attached block 43 on a set of outer frames 40 clockwise or counterclockwise 90 degrees around the mounting block 41 to transform the swing arm 42 and the block 43 into a horizontal posture so as to accurately dock with the plug-in slot 44 on the corresponding side length of the other set of outer frames 40. As the block 43 slides smoothly into the corresponding plug-in slot 44, the built-in torsion spring will cause the swing arm 42 and the block 43 to rotate in the opposite direction and reset, returning to a vertical state again, to achieve a stable snap connection. This fast and convenient assembly mechanism not only greatly improves the flexibility and adaptability of the processing platform, ensuring that it can be quickly adjusted according to the actual needs of workpiece processing, but also enhances the stability and matching accuracy of the base plate 1 during assembly through the snap-fit ​​structure.

[0081] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A machine tool fixture assembly, characterized in that: include: The bottom plate has a plurality of plug holes equidistantly arranged in a rectangular array for positioning, locking and installing the fixture body. The fixture body includes a connecting component and a clamping component. The connecting component is plugged into the plug holes for locking and fixing the fixture body. The clamping component is rotatably connected to the top of the connecting component for positioning and clamping the workpiece. The connecting component includes a plug-in column, which is plugged into the inside of the plug-in hole. The plug-in column is arranged in a cubic shape, and the bottom end of the plug-in column is arranged in a frustum shape. The inside of the plug-in column is provided with an installation cavity for installing the parts of the connecting component. The top end of the plug-in column is fixedly installed with a lower top plate, and the top end of the inner top of the plug-in column installation cavity is fixedly installed with a mounting seat, the inside of the mounting seat is rotatably connected to a first worm gear, the inside of the mounting seat is rotatably connected to a first worm, and the first worm and the first worm gear are meshed and connected, a first screw is fixedly installed at the center of the first worm gear, and the end of the first screw away from the first worm gear is rotatably connected to a fixing frame, and the fixing frame is fixedly installed inside the mounting seat; The connecting assembly also includes a connecting frame, the connecting frame is threadedly connected to the first screw rod, the bottom end of the connecting frame is symmetrically rotatably connected to two transmission arms, one end of the two transmission arms away from the connecting frame is respectively rotatably connected to the two clamping blocks, and the two clamping blocks are respectively slidably connected to the two sides of the mounting seat, a first motor is fixedly installed on one side of the plug-in column, and the output end of the first motor passes through the side wall of the plug-in column and is fixedly connected to one end of the first worm gear, an extension arm is equidistantly fixedly installed on the top end of the plug-in column, and the extension arm is fixedly connected to the lower surface of the lower top plate, and a sliding groove is provided at the bottom end of the plug-in column; Touch switches for opening and closing the connection components are fixedly installed at equal intervals on the lower surface of the lower top plate; The cam is secured to the bottom of the chassis and is designed to be rotated with the top of the chassis to move the chassis upwards, the cam being secured to the bottom of the chassis and being rotated with the chassis upwards. The auxiliary structure includes a plurality of sliding chambers opened on the lower surface of the pressing block guide groove, a plurality of extrusion columns are slidably connected inside the plurality of sliding chambers, and one end of the extrusion columns extends to the pressing block guide groove, and a gas injection hole is opened on the side wall of the pressing block.

2. The machine tool fixture assembly according to claim 1, characterized in that: The plug-in hole is arranged in a rectangular through-hole shape, with thin ends at the two ends of the plug-in hole and thick middle part.

3. The machine tool fixture assembly according to claim 2, characterized in that: The extension structure includes a mounting column fixedly mounted on the top of the pressing block, a second motor is fixedly mounted inside the mounting column, a bidirectional lead screw is rotatably connected inside the mounting column, an output end of the second motor is fixedly connected to one end of the bidirectional lead screw, two sleeves are symmetrically threadedly connected on the bidirectional lead screw, both ends of the two sleeves are rotatably connected to a transmission rod, and one end of the transmission rod away from the sleeve is rotatably connected to a holder, the two holders are symmetrically slidably connected inside the mounting column, external support frames are symmetrically fixedly mounted on both sides of the top of the mounting column, a button is fixedly mounted on one end of the fixed seat, and the button is electrically connected to the second motor.

4. The machine tool fixture assembly according to claim 3, characterized in that: A splicing assembly is fixedly installed on the outer ring of the base plate, and the splicing assembly includes an outer frame, and the outer frame is fixedly installed on the outer ring of the base plate. Mounting blocks are symmetrically fixedly installed on the left and rear sides of the outer frame. The mounting block is rotatably connected to a swing arm through a torsion spring, and the end of the swing arm away from the mounting block is rotatably connected to a clamping block, and the right and front sides of the outer frame are symmetrically provided with plug-in grooves that are slidably engaged with the clamping block.

5. The machine tool fixture assembly according to claim 4, characterized in that: Base pads for raising the outer frame are fixedly installed at four corners of the lower surface of the outer frame.

6. A machine tool, characterized in that: A machine tool fixture assembly comprising any one of claims 1-5.

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