Supporting tailstock assembly of main clamp of machining center

Abstract

The invention is applied to the field of machining center parts, and provides a supporting tailstock assembly of a machining center main clamp. A screw cylinder is movably arranged on the outer side of an ejector rod main body in a sleeving mode, and an ejector plate is arranged at the left end of the screw cylinder; the position of the top plate on the left side of the screw cylinder can be flexibly adjusted according to actual use requirements, after the ejector rod body is matched with a machining center chuck to position and clamp a workpiece, the top plate can be driven to be attached to the right side of the workpiece, the stability of the workpiece clamped on a machining center can be further improved, and the heat conduction and dissipation area can be increased through attachment; and the efficiency that internal heat is dissipated outwards in the turning machining process of the workpiece is improved, and then the turning machining stability of the workpiece by a machining center is improved to a certain degree.

Description

Technical Field

[0001] This application relates to the field of machining center components, and in particular to a support tailstock assembly for a machining center main fixture. Background Technology

[0002] The tailstock support assembly is a mechanical structure installed on a CNC machining center and used in conjunction with a chuck to position and clamp the workpiece. By adjusting the movement of the tailstock support, the push rod on the tailstock support, together with the chuck, can more stably clamp and position the workpiece to be machined, thereby ensuring the stability of the workpiece during turning on the machining center.

[0003] In existing technology, in the support tailstock of CNC machining centers, the push rod is usually set on the end wall of the support tailstock near the chuck. In order to ensure the accuracy of the push rod in assisting the positioning and clamping of the workpiece surface and to avoid the unevenness of the workpiece surface from affecting the auxiliary clamping of the push rod, the end of the push rod is usually set as a tapered structure. Although this structure can ensure the accuracy of the push rod pressing on the workpiece, it will result in the contact area between the push rod and the workpiece surface being too small, and the actual clamping effect is relatively weak. Moreover, the overly sharp end of the push rod is also prone to damaging the workpiece surface during the clamping process, affecting the stability of the workpiece being turned by the machining center.

[0004] To address these issues, a support tailstock assembly for the main fixture of a machining center is proposed. Summary of the Invention

[0005] The purpose of this application is to solve the problem in the prior art that the contact area between the inner push rod of the tailstock and the workpiece surface is too small, resulting in weak clamping effect and easy damage to the workpiece surface. Compared with the prior art, this application provides a tailstock support assembly for a machining center main fixture, including a base plate. Two parallel guide rails are fixedly installed on the top of the base plate. The top of the two guide rails jointly support a base. Vertically arranged bolts are movably inserted in the base, and a baffle is fixedly installed at the bottom of the bolts below the base. The base, together with the baffle, clamps the upper and lower sides of the guide rails. A tailstock body is fixedly installed on the top of the base, and an inner box protruding to the left is inserted into the tailstock body. A horizontally arranged push rod body is installed at the center of the left end of the inner box, and the left end of the push rod body... The device is designed with a conical structure. The left end wall of the inner box has a through hole surrounding the main body of the push rod. A screw cylinder is slidably inserted into the through hole and is movably sleeved on the outside of the main body of the push rod. The upper and lower end walls of the screw cylinder have transverse through slots. The right end of the main body of the push rod passes through the through slots and is fixedly connected to the left end wall of the inner box. The left end of the screw cylinder is connected to a top plate. A circular hole for the main body of the push rod to pass through is opened at the center of the top plate. An internal threaded ring is rotatably installed inside the inner box and is threaded onto the outside of the screw cylinder. A first bevel tooth is fixedly installed on the internal threaded ring and is coaxially arranged with it. A second bevel tooth is rotatably installed on the front end wall of the inner box and meshes with the internal threaded ring. A second rotating wheel is fixedly installed at the front axis position of the second bevel tooth and is located on the outside of the tailstock main body and the inner box.

[0006] Furthermore, the cross-section of the guide rail is set as a T-shaped structure, the front and rear length of the baffle is adapted to the distance between the two guide rails below, the left and right length of the baffle is adapted to the distance between the two guide rails above, and the four corners of the baffle are set as arc-shaped structures adapted to the distance between the two guide rails below.

[0007] Furthermore, a gear is rotatably installed inside the base, and a rack is fixedly installed on the base plate between two guide rails. The gear meshes with the rack. A servo motor for driving the gear to rotate is fixedly installed on the base. First ball bearings are rolled on the front and rear edges of the bottom of the base and are located above the guide rails. Second ball bearings are rolled on the front and rear edges of the top of the baffle and are located below the guide rails.

[0008] Furthermore, a first worm gear is fixedly mounted on the gear and coaxially arranged therewith, and a first worm gear meshing with the first worm gear is rotatably mounted inside the base, and the drive shaft of the servo motor is connected to the first worm gear via transmission.

[0009] Furthermore, the inner box is slidably inserted into the tailstock body, and a horizontally arranged screw is screwed into the inner box. The right end of the screw rotates through to the right end wall of the tailstock body, and a first rotating wheel connected to the screw drive is rotatably installed on the tailstock body.

[0010] Furthermore, a second worm gear is fixedly installed on the right end of the screw and located on the right side of the tailstock body. A second worm gear that meshes with the second worm gear is rotatably installed on the tailstock body. A first rotating wheel is located on the front of the tailstock body and is connected to the second worm gear in a transmission manner.

[0011] Furthermore, an inner ball head is fixedly installed on the left end of the screw cylinder and movably sleeved on the outside of the push rod body, and an outer ball head is movably sleeved on the outside of the inner ball head, with the top plate fixedly connected to the left end of the outer ball head.

[0012] Furthermore, the left end wall of the top plate is evenly provided with crisscrossing anti-slip grooves, and the anti-slip grooves are filled with thermally conductive rubber.

[0013] Furthermore, a first tension spring is symmetrically arranged between the left end of the screw barrel and the outer ball head, and the first tension spring is located on the outside of the screw barrel and the outer ball head. A second tension spring is symmetrically arranged between the inner ball head and the outer ball head, and the second tension spring is located on the inside of the inner ball head and the outer ball head.

[0014] Furthermore, the top plate has evenly distributed water channels, and the right side of the top plate is equipped with flexible hoses that connect to the two ends of the water channels.

[0015] Compared to existing technologies, the advantages of this application are:

[0016] (1) This application movably sleeves the screw barrel on the outside of the push rod body and sets the top plate at the left end of the screw barrel. With the help of the screw barrel and the internal thread ring, the position of the top plate on the left side of the screw barrel can be flexibly adjusted according to the actual use requirements. After the push rod body cooperates with the machining center chuck to position and clamp the workpiece, it can drive the top plate to fit against the right side of the workpiece. This can not only further improve the stability of the workpiece being clamped on the machining center, but also increase the heat conduction and heat dissipation area by fitting together, which is conducive to improving the efficiency of internal heat dissipation during the workpiece turning process, and thus improves the stability of the workpiece being turned by the machining center to a certain extent.

[0017] (2) By setting the front and rear length of the baffle to match the distance between the bottom of the front and rear guide rails, setting the left and right length of the baffle to match the distance between the top of the front and rear guide rails, and setting the four corners of the baffle to be rounded, the baffle can be rotated 90° in both directions after the bolts are loosened, so that the front and rear length and left and right length of the baffle can be interchanged, realizing convenient and efficient disassembly and assembly of the baffle between the front and rear guide rails. This is beneficial to improving the disassembly, assembly, maintenance, and adjustment convenience of the device in actual use.

[0018] (3) By rolling a number of first balls on the bottom front and rear edges of the base and rolling a number of second balls on the top front and rear edges of the baffle, the frictional resistance between the bottom of the base, the top of the baffle and the front and rear guide rails can be greatly reduced. When the baffle is clamped on the top of the front and rear guide rails with the base, the baffle can move left and right along the guide rails. With the help of the meshing of gears and racks and the power-driven servo motor, the base can be more conveniently and flexibly adjusted in the left and right directions, which improves the convenience of the device in actual use to a certain extent.

[0019] (4) By setting a first worm gear and a first worm meshing, the rotational power of the servo motor drive shaft is transmitted to the gear. With the help of the self-locking property of the one-way transmission after the first worm and the first worm gear mesh, the first worm gear cannot rotate on its own when the first worm is not rotating. Thus, the gear cannot be driven to rotate when the servo motor is not started, which helps to ensure that the base remains stable after the position is adjusted.

[0020] (5) By setting the inner ball head and outer ball head that roll together between the screw barrel and the top plate, the top plate can rotate 360° relative to the left end of the screw barrel. When the top plate is moved to the left by the screw barrel and clamped on the right side of the workpiece, the top plate can fit more tightly with the right side of the workpiece after the deflection adjustment. This not only further improves the stability of the workpiece clamping by the top plate and the push rod body, but also further improves the efficiency of heat conduction from the workpiece to the top plate through tight fit.

[0021] (6) By connecting the first tension spring and the second tension spring between the front and rear sides and the upper and lower sides of the inner ball head and the outer ball head respectively, the elastic tension of the first tension spring and the second tension spring can provide a lateral elastic mutual tension force at the four positions of the inner ball head, the upper and lower sides, the front and rear sides. When the top plate does not assist in clamping the workpiece, the elastic tension of the first tension spring and the second tension spring can reset the top plate, so that the top plate can maintain a stable vertical state, which is conducive to ensuring the fit stability of the top plate when assisting in clamping the right side of the workpiece.

[0022] (7) By opening the water channel around the top plate and connecting the water channel to the external water cooling heat dissipation unit with two hoses, the cooling water can circulate in the water channel in the top plate, which can conveniently and efficiently improve the efficiency of dissipating the internal heat of the clamped workpiece during the processing. Attached Figure Description

[0023] Figure 1 This is a perspective view of the present application;

[0024] Figure 2 This is an exploded view of this application;

[0025] Figure 3This is a perspective view of the structure on the base of this application;

[0026] Figure 4 This is an exploded view of the inner box and screw cylinder of this application;

[0027] Figure 5 This is a split view of the inner and outer ball heads of this application;

[0028] Figure 6 This is a front sectional view of this application;

[0029] Figure 7 This is a front view of this application;

[0030] Figure 8 For this application Figure 7 Sectional view of AA;

[0031] Figure 9 For this application Figure 7 Sectional view of BB;

[0032] Figure 10 For this application Figure 7 A sectional view of CC.

[0033] Explanation of the labels in the diagram:

[0034] 1. Base plate; 101. Guide rail; 2. Base; 201. Bolt; 202. Baffle; 203. Gear; 204. Rack; 205. Servo motor; 206. First worm gear; 207. First worm; 208. First ball; 209. Second ball; 3. Tailstock body; 301. Inner box; 302. Screw; 303. Second worm gear; 304. Second worm; 305. First rotating wheel; 4. Top rod body; 5. Through hole; 501. Screw barrel; 502. Through groove; 503. Inner ball head; 504. Outer ball head; 505. Top plate; 506. Round hole; 507. First tension spring; 508. Second tension spring; 509. Internal threaded ring; 510. First bevel gear; 511. Second bevel gear; 512. Second rotating wheel; 6. Water channel; 601. Hose. Detailed Implementation

[0035] The embodiments will be described clearly and completely with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments in this application without creative effort are within the scope of protection of this application.

[0036] Example 1:

[0037] This invention provides a support tailstock assembly for a main fixture of a machining center. Please refer to [link / reference]. Figure 1 - Figure 10The system includes a base plate 1. Two parallel guide rails 101 are fixedly mounted on the top of the base plate 1. The tops of the two guide rails 101 together support a base 2. Vertically inserted bolts 201 are movably inserted into the base 2. A baffle 202 is fixedly mounted at the bottom of the bolts 201 and positioned below the base 2. The base 2, in conjunction with the baffle 202, is clamped to the upper and lower sides of the guide rails 101. A tailstock body 3 is fixedly mounted on the top of the base 2. An inner box 301 protruding to the left is inserted into the tailstock body 3. A horizontally positioned top rod body 4 is installed at the center of the left end of the inner box 301. The left end of the top rod body 4 has a conical structure. A through hole 5 is formed around the top rod body 4 on the left end wall of the inner box 301, and a movable part fitted around the top rod body 4 is slidably inserted into the through hole 5. The screw barrel 501 is located on the side, and the upper and lower end walls of the screw barrel 501 are provided with transversely arranged through grooves 502. The right end of the push rod body 4 passes through the through grooves 502 and is fixedly connected to the left end wall of the inner box 301. The left end of the screw barrel 501 is connected to the top plate 505, and the center of the top plate 505 is provided with a round hole 506 for the push rod body 4 to pass through. An internal threaded ring 509 is rotatably installed inside the inner box 301 and threadedly sleeved on the outside of the screw barrel 501. A first bevel tooth 510 is fixedly installed on the internal threaded ring 509 and coaxially arranged with it. A second bevel tooth 511 that meshes with the internal threaded ring 509 is rotatably installed on the front end wall of the inner box 301. A second rotating wheel 512 located on the front axis of the second bevel tooth 511 and located on the outside of the tailstock body 3 and the inner box 301 is fixedly installed.

[0038] When in use, this device is installed at the end of the worktable of the machining center. It works in conjunction with the chuck on the machining center to firmly clamp the workpiece. Taking the chuck on the left side of the machining center and the device on the right side as an example, the base 2, mounted on the top of the two guide rails 101 on the base plate 1, can move left and right along the base plate 1. By adjusting the position of the base 2, the push rod body 4, in conjunction with the chuck on the machining center, can firmly clamp the workpiece. The workpiece is positioned and clamped by the push rod body 4 and the chuck. After the push rod body 4 and the chuck clamp the workpiece, the operator can hold and rotate the second rotating wheel 512. The second rotating wheel 512 drives the second bevel gear 511 to rotate. Through the meshing of the second bevel gear 511 and the first bevel gear 510, the internal threaded ring 509 is driven to rotate. Through the threaded meshing between the internal threaded ring 509 and the screw barrel 501, the screw barrel 501 is driven to move to the left within the through hole 5, thereby causing the top plate 505 installed at the left end of the screw barrel 501 to move to the left. The movement eventually causes the left end wall of the top plate 505 to fit tightly against the right side of the workpiece held between the chuck and the ejector body 4. When the workpiece is machined in the machining center, the tight fit of the round hole 506 not only effectively improves the stability of the workpiece during machining, but also improves the efficiency of heat dissipation during the turning process by using the large contact area of ​​the round hole 506 with the workpiece. This further enhances the stability of the workpiece during machining. After the workpiece is machined, the operator first rotates the second rotating wheel 512 in the opposite direction. Under the transmission connection, the internal thread ring 509 rotates in the opposite direction, driving the screw barrel 501 to move the top plate 505 to the right. This allows the top plate 505 to separate from the machined workpiece first, facilitating subsequent reuse. Then, the ejector body 4 is adjusted to the right to loosen its grip on the machined workpiece and release the chuck. The machined workpiece is then removed and replaced with a new workpiece to be machined. The above operation is repeated for subsequent processing.

[0039] When using this device, the screw barrel 501 is movably sleeved on the outside of the push rod body 4, and the top plate 505 is set at the left end of the screw barrel 501. With the help of the threaded engagement between the screw barrel 501 and the internal threaded ring 509, the position of the top plate 505 on the left side of the screw barrel 501 can be flexibly adjusted according to actual usage requirements. After the push rod body 4 cooperates with the machining center chuck to position and clamp the workpiece, the top plate 505 can be driven to fit against the right side of the workpiece. This not only further improves the stability of the workpiece being clamped on the machining center, but also increases the heat conduction and heat dissipation area by fitting together, which is conducive to improving the efficiency of internal heat dissipation during the workpiece turning process, thereby improving the stability of the workpiece being turned by the machining center to a certain extent.

[0040] Please see Figure 3 and Figure 4The guide rail 101 has a T-shaped cross-section. The front-to-back length of the baffle 202 matches the distance between the two guide rails 101 below, and the left-to-right length of the baffle 202 matches the distance between the two guide rails 101 above. The four corners of the baffle 202 are set as arc-shaped structures that match the distance between the two guide rails 101 below. When the device is in use, because the cross-section of the two guide rails 101 is T-shaped, when the baffle 202 is engaged between the two guide rails 101, the locking bolts 201 ensure that the base 2 can be stably installed on top of the two guide rails 101. Furthermore, because the front-to-back length of the baffle 202 is equal to the distance between the bottom of the two guide rails 101... The baffle 202 is adapted to the distance between the tops of the front and rear guide rails 101. This allows the baffle 202 to rotate 90° after the bolt 201 is loosened, thus changing the front-to-back and left-to-right lengths of the baffle 202. This makes it easy and efficient to remove the baffle 202 from between the front and rear guide rails 101, and then remove the base 2 from the front and rear guide rails 101. This facilitates flexible disassembly and adjustment of the device and effectively improves the ease of adjustment during actual use. When driving the baffle 202 to rotate 90° in both directions, the four corners of the baffle 202 are set to an arc-shaped structure so that the baffle 202 will not be obstructed during the rotation and adjustment process.

[0041] Please see Figure 2 and Figure 6 A gear 203 is rotatably mounted inside the base 2. A rack 204 is fixedly mounted on the base plate 1 between two guide rails 101. The gear 203 meshes with the rack 204. A servo motor 205 for driving the gear 203 to rotate is fixedly mounted on the base 2. A first ball bearing 208 is rolled on the front and rear edges of the bottom of the base 2 and is positioned above the guide rail 101. A second ball bearing 209 is rolled on the front and rear edges of the top of the baffle 202 and is positioned below the guide rail 101. A first worm gear 206 is fixedly mounted on the gear 203 and is coaxially mounted therewith. A first worm 207 that meshes with the first worm gear 206 is rotatably mounted inside the base 2. The drive shaft of the servo motor 205 is connected to the first worm 207 for transmission.

[0042] In use, this device significantly reduces frictional resistance between the bottom of the base 2, the top of the baffle 202, and the top of the base 2 by rolling numerous first balls 208 at the front and rear edges of the bottom and numerous second balls 209 at the front and rear edges of the top of the baffle 202. This allows the baffle 202 to move left and right along the guide rails 101 when it is clamped between the base 2 and the top of the two guide rails 101. When the base 2 is moved to adjust the device, the servo motor 205 mounted on the base 2 is energized and starts, driving the first worm 207, which is connected to its drive shaft, to rotate. Through the meshing of the first worm 207 and the first worm wheel 206, the first worm wheel 206 drives the gear 203 to rotate. Then, through the meshing of the gear 203 and the rack 204, the servo motor 205 drives the gear 203 to rotate. The rotation direction of the drive shaft controls the left and right movement of the base 2 along the guide rail 101. The high-speed rotation of the drive shaft driven by the servo motor 205 drives the gear 203 to rotate. Under the meshing of the gear 203 and the rack 204, the base 2 can be driven to move and adjust quickly left and right, which is beneficial to improving the convenience of large-scale left and right adjustments. When adjusting the base 2 left and right, the rotational power of the drive shaft driven by the servo motor 205 is transmitted to the gear 203 by the meshing of the first worm gear 206 and the first worm 207. By utilizing the self-locking property of the unidirectional transmission after the meshing of the first worm 207 and the first worm gear 206, the first worm gear 206 cannot rotate on its own when the first worm 207 is not rotating. Consequently, the gear 203 cannot be driven to rotate when the servo motor 205 is not started, so that the base 2 can maintain a stable state after the position is adjusted.

[0043] Please see Figure 2 , Figure 6 and Figure 8 The inner box 301 is slidably inserted into the tailstock body 3. A horizontally arranged screw 302 is screwed into the inner box 301, and the right end of the screw 302 rotates through to the right end wall of the tailstock body 3. A first rotating wheel 305, which is connected to the screw 302, is rotatably mounted on the tailstock body 3. A second worm gear 303, which is located on the right side of the tailstock body 3, is fixedly mounted on the right end of the screw 302. A second worm 304, which meshes with the second worm gear 303, is rotatably mounted on the tailstock body 3. The first rotating wheel 305 is located on the front of the tailstock body 3, and the first rotating wheel 305 is connected to the second worm 304.

[0044] When using this device, in conjunction with the chuck to firmly clamp a workpiece on a machining center, the base 2 is quickly adjusted to a state where the workpiece is about to be clamped. At this time, the push rod body 4 on the device has not yet applied clamping force to the right side of the workpiece. When positioning and clamping are required, the operator holds the first rotating wheel 305 and rotates it. The first rotating wheel 305 drives the second worm gear 304 to rotate. Through the meshing of the second worm gear 304 and the second worm wheel 303, the rotational power from the front is transmitted to the horizontally arranged screw 302. Through the threaded engagement between the screw 302 and the inner box 301, the inner box 301 can be moved within the tailstock body 3. By controlling the rotation direction of the first rotating wheel 305, the direction in which the inner box 301 drives the push rod body 4 to move left and right can be controlled. After the push rod body 4 moves to the left, it can cooperate with the chuck to position and clamp the workpiece. After the push rod body 4 moves to the right, it will release the clamping of the workpiece. When the meshing of the second worm gear 303 and the second worm 304 changes downward, the first rotating wheel 305, which drives the screw 302 to rotate, can be set on the front of the tailstock body 3. This is beneficial to improving the ease of operation for the operator when controlling the device. During the control of the push rod body 4 to move left and right, the meshing drive between the inner box 301 and the screw 302, as well as the meshing drive between the second worm gear 303 and the second worm 304, can significantly reduce speed and increase torque under double meshing. Although it will reduce the speed at which the push rod body 4 moves to the left when rotating the first rotating wheel 305 to some extent, it can significantly reduce the force applied when the push rod body 4 moves to the left and clamps the workpiece with the chuck. This is beneficial to ensuring the stability of the device when clamping the workpiece with the chuck to a certain extent.

[0045] Please see Figure 4 - Figure 8 An inner ball head 503 is fixedly installed on the left end of the screw barrel 501 and is movably sleeved on the outside of the push rod body 4. An outer ball head 504 is movably sleeved on the outside of the inner ball head 503. The top plate 505 is fixedly connected to the left end of the outer ball head 504. The left end wall of the top plate 505 is evenly provided with horizontal and vertical anti-slip grooves, and the anti-slip grooves are filled with thermally conductive rubber. A first tension spring 507 is symmetrically arranged between the left end of the screw barrel 501 and the outer ball head 504. The first tension spring 507 is located on the outside of the screw barrel 501 and the outer ball head 504. A second tension spring 508 is symmetrically arranged between the inner ball head 503 and the outer ball head 504. The second tension spring 508 is located on the inside of the inner ball head 503 and the outer ball head 504.

[0046] When in use, the device features an inner ball joint 503 and an outer ball joint 504 that roll and engage with each other between the screw barrel 501 and the top plate 505. This allows the top plate 505 to rotate 360° relative to the left end of the screw barrel 501. When the top plate 505 is moved to the left by the screw barrel 501 and clamped to the right side of the workpiece, the rolling of the outer ball joint 504 relative to the inner ball joint 503 causes the top plate 505 to deflect and adjust. This results in a tighter fit between the left end wall of the top plate 505 and the right side of the workpiece, further improving performance. The top plate 505, together with the top rod body 4, enhances the stability of the workpiece being clamped. It can also further improve the efficiency of heat transfer from the workpiece to the top plate 505 through close contact. The anti-slip groove on the left end wall of the top plate 505 can effectively improve the stability of the clamping force applied to the workpiece when the top plate 505 is in contact with the workpiece surface. Filling the anti-slip groove with thermally conductive rubber can further improve the contact tightness between the top plate 505 and the workpiece surface, ensuring the stability of heat transfer to the top plate 505 during workpiece processing.

[0047] The inner ball head 503 and the outer ball head 504 are connected by a first tension spring 507 and a second tension spring 508 on their front and rear sides and upper and lower sides, respectively. Under the elastic connection of the first tension spring 507 and the second tension spring 508, the inner ball head 503 and the outer ball head 504 are provided with lateral elastic mutual pulling at four positions: upper, lower, front, and rear. This allows the top plate 505 to maintain a stable vertical state when it is not assisting in clamping the workpiece, thanks to the elastic pulling of the first tension spring 507 and the second tension spring 508. This ensures the fit stability of the top plate 505 when assisting in clamping the right side of the workpiece.

[0048] Please see Figure 6 - Figure 9 The top plate 505 has evenly distributed water channels 6. On the right side of the top plate 505, there are flexible hoses 601 that are connected to the two ends of the water channels 6. When the device is in use, the heat generated during the turning of the workpiece held in the machining center is transferred to the top plate 505. The two hoses 601 are connected to the inlet and outlet pipes of the water cooling unit, respectively. Cooling water enters the water channel 6 in the top plate 505 through one hose 601, efficiently absorbing and carrying away the heat transferred in the top plate 505. It then flows back into the water cooling unit through the other hose 601 for rapid cooling. The cooled water then enters the water channel 6 again, realizing the trend of cooling water circulating in the water channel 6 in the top plate 505. This can conveniently and efficiently improve the efficiency of dissipating the internal heat accumulated in the workpiece during the machining process.

[0049] The above are merely the best implementation methods adopted in this application in light of current practical needs, but the scope of protection of this application is not limited thereto.

Claims

1. A support tailstock assembly of a main clamp of a machining center comprising a base plate (1), characterized in that, The top of the bottom plate (1) is fixedly provided with two side-by-side guide rails (101), the top of the two guide rails (101) jointly supports a base (2), the base (2) movably penetrates a vertically arranged bolt (201), the bottom end of the bolt (201) is fixedly provided with a baffle (202) arranged below the base (2), the base (2) is clamped on the upper and lower sides of the guide rail (101) in cooperation with the baffle (202), the top of the base (2) is fixedly provided with a tailstock body (3), the tailstock body (3) is inserted with a leftward protruding inner box (301), the left end center of the inner box (301) is provided with a transversely arranged top rod body (4), the left end of the top rod body (4) is provided in a conical structure, a through hole (5) is formed in the left end wall of the inner box (301) and surrounds the top rod body (4), a screw cylinder (501) movably sleeved on the outside of the top rod body (4) is slidably inserted into the through hole (5), transversely arranged through grooves (502) are formed in the upper and lower side walls of the screw cylinder (501), the right end of the top rod body (4) penetrates through the through grooves (502) and is fixedly connected with the left end wall of the inner box (301), a top plate (505) is connected with the left end of the screw cylinder (501), a circular hole (506) is formed in the center of the top plate (505) and penetrates the top rod body (4), a threaded sleeve (509) is rotatably installed in the inner box (301) and is threaded on the outside of the screw cylinder (501), a first bevel gear (510) is fixedly installed on the threaded sleeve (509) and is coaxially arranged, a second bevel gear (511) is rotatably installed on the front end wall of the inner box (301) and is engaged with the threaded sleeve (509), and a second rotating wheel (512) is fixedly installed on the front axle center of the second bevel gear (511) and is arranged outside the tailstock body (3) and the inner box (301).

2. The support tailstock assembly of claim 1, wherein, The cross section of the guide rail (101) is provided in a T-shaped structure, the front and back lengths of the baffle (202) are adapted to the spacing below the two guide rails (101), the left and right lengths of the baffle (202) are adapted to the spacing above the two guide rails (101), and the four corner positions of the baffle (202) are provided in a circular arc structure adapted to the spacing below the two guide rails (101).

3. The support tailstock assembly of claim 1, wherein, A gear (203) is rotatably installed in the base (2), a rack (204) is fixedly installed on the bottom plate (1) and is arranged between the two guide rails (101), the gear (203) is engaged with the rack (204), a servo motor (205) is fixedly installed on the base (2) and is used to drive the gear (203) to rotate, first rolling balls (208) are rollingly installed on the bottom of the base (2) and are arranged above the guide rail (101), and second rolling balls (209) are rollingly installed on the top of the baffle (202) and are arranged below the guide rail (101).

4. The support tailstock assembly of claim 3, wherein, The gear (203) is fixedly provided with a first worm wheel (206) coaxially arranged, the base (2) is rotatably provided with a first worm (207) engaged with the first worm wheel (206), and the driving shaft of the servo motor (205) is in transmission connection with the first worm (207).

5. The support tailstock assembly of claim 1, wherein, The inner box (301) is slidingly inserted into the tailstock body (3), the inner box (301) is threadedly connected with a transversely arranged screw rod (302) in the inner box (301), the right end of the screw rod (302) is rotatably penetrated into the right end wall of the tailstock body (3), and the tailstock body (3) is rotatably provided with a first rotating wheel (305) in transmission connection with the screw rod (302).

6. A support tailstock assembly of a main chuck of a machining center according to claim 5, characterized in that, The right end of the screw rod (302) is fixedly provided with a second worm wheel (303) arranged on the right side of the tailstock body (3), the tailstock body (3) is rotatably provided with a second worm (304) engaged with the second worm wheel (303), the first rotating wheel (305) is arranged on the front surface of the tailstock body (3), and the first rotating wheel (305) is in transmission connection with the second worm (304).

7. The support tailstock assembly of claim 1, wherein, The left end of the screw cylinder (501) is fixedly provided with an inner ball head (503) movably sleeved on the outside of the jacking rod body (4), and the outside of the inner ball head (503) is movably sleeved with an outer ball head (504), and the top plate (505) is fixedly connected to the left end of the outer ball head (504).

8. The support tailstock assembly of claim 7, wherein, The left end wall of the top plate (505) is uniformly provided with transversely and longitudinally staggered anti-skid grooves, and the anti-skid grooves are filled with heat-conducting rubber.

9. The support tailstock assembly of claim 7, wherein, The left end of the screw cylinder (501) and the outer ball head (504) are connected with first tension springs (507) symmetrically arranged in front and back, and the first tension springs (507) are arranged on the outside of the screw cylinder (501) and the outer ball head (504), the inner ball head (503) and the outer ball head (504) are connected with second tension springs (508) symmetrically arranged in up and down, and the second tension springs (508) are arranged on the inside of the inner ball head (503) and the outer ball head (504).

10. The support tailstock assembly of claim 1, wherein, The top plate (505) is provided with uniformly distributed water channel (6), and the right side of the top plate (505) is provided with a hose (601) in communication with two ends of the water channel (6).

Images