Workpiece support height adjusting device for CNC lathe

Abstract

The utility model relates to numerical control machine tool technical field, concretely is a kind of CNC lathe workpiece support height adjusting device, including support device, the support device includes support seat, the top fixedly connected with fixed platform of support seat, the circumferential surface of screw rod is sleeved with screw rod cover, and and screw rod rotation is connected, the one end fixedly connected with support platform of screw rod cover away from screw rod. By starting motor fixedly installed on support plate, to make the output shaft of motor drive bidirectional screw rod rotation, because the thread of opposite rotation is machined in the both ends of bidirectional screw rod, and is engaged with two thread sleeves respectively, to flexibly adjust support posture, ensure to form accurate, stable adaptive support to different workpieces, to solve the positioning of workpiece relies on manual, time-consuming and precision is difficult to guarantee, lead to change production efficiency is low, batch processing precision is unstable, seriously restricts the problem of automation production tempo and overall machining quality.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, specifically to a workpiece support height adjustment device for a CNC lathe. Background Technology

[0002] The workpiece support height adjustment device on a CNC lathe is an auxiliary device installed on the lathe, mainly used to provide adjustable additional support when machining workpieces with insufficient rigidity, such as slender shafts. Its core function is to precisely adjust the height of the support to keep it aligned with the workpiece's centerline, thereby effectively counteracting the bending, vibration, and deformation of the workpiece caused by cutting forces during machining.

[0003] Currently, the existing CNC lathe workpiece support height adjustment device relies on manual workpiece positioning, which is time-consuming and difficult to guarantee accuracy. This results in low changeover efficiency, unstable batch processing accuracy, and seriously restricts the automated production cycle and overall processing quality.

[0004] In view of this, we propose a workpiece support height adjustment device for CNC lathes. Utility Model Content

[0005] The purpose of this utility model is to provide a workpiece support height adjustment device for CNC lathes. This workpiece support height adjustment device solves the problem that workpiece positioning relies on manual operation, which is time-consuming and difficult to guarantee accuracy, resulting in low changeover efficiency, unstable batch processing accuracy, and seriously restricting the automated production cycle and overall processing quality.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A CNC lathe workpiece support height adjustment device includes a support device, which includes a support base. A fixed platform is fixedly connected to the top of the support base. A handle is provided on one side of the fixed platform. A worm gear is fixedly connected to the side of the handle near the fixed platform. A worm wheel meshes with the circumferential surface of the worm gear. A lead screw passes through the worm wheel and is fixedly connected to it. A lead screw sleeve is fitted on the circumferential surface of the lead screw and is rotatably connected to it. A support platform is fixedly connected to the end of the lead screw sleeve away from the lead screw. A support frame is provided above the support platform. The device also includes an adjustment device for quickly adjusting the spacing of the support frame and a positioning device for fixing the adjustment device.

[0008] Preferably, the adjusting device includes a support plate, a motor is fixedly connected to the top of the support plate, a bidirectional threaded rod is fixedly connected to the output shaft of the motor, a threaded sleeve is rotatably connected to the circumferential surface of the bidirectional threaded rod near the motor, a rectangular plate is fixedly connected to the top of the threaded sleeve, sliders are fixedly connected to the bottom of both sides of the rectangular plate, and a rotating shaft is rotatably connected to the top surface of the rectangular plate.

[0009] Preferably, one side of the support plate is fixedly connected to one side of the support platform, the end of the slider away from the rectangular plate is slidably connected to a groove opened on the top surface of the support platform, the bottom surface of the rectangular plate is set on the top surface of the support platform, a plurality of recesses are opened on the circumferential surface of the rotating shaft, and the top end of the rotating shaft is fixedly connected to the bottom of the support frame.

[0010] Preferably, the positioning device includes a fixed plate, an electric telescopic rod is fixedly connected to one side of the fixed plate, a connecting plate is fixedly connected to the end of the electric telescopic rod away from the fixed plate, long rods are fixedly connected to both sides of the connecting plate away from the electric telescopic rod, a spring is sleeved on the circumferential surface of the long rod near the connecting plate and fixedly connected to the long rod, a rectangular block is fixedly connected to one end of the spring, a baffle is fixedly connected to the end of the long rod away from the connecting plate, and a locking post is fixedly connected to the middle of the baffle near the rectangular block.

[0011] Preferably, the bottom end of the fixing plate is fixedly connected to the top surface of the rectangular plate, the rectangular block is hollow inside, and the inside extends through the circumferential surface of the rotating shaft and is rotatably connected to the rotating shaft. One end of the long rod is fixedly connected to the surface of the connecting plate away from the electric telescopic rod, and the other end is fixedly connected to the surface of the baffle close to the rectangular block, and the circumferential surface slides through both ends of the rectangular block.

[0012] Preferably, one end of the spring is fixedly connected to the surface of the connecting plate near the long rod, and the other end is fixedly connected to the surface of the rectangular block near the connecting plate. The end of the locking pin away from the baffle is set in a recessed hole opened on the circumference of the rotating shaft.

[0013] Preferably, the top surface of the support platform is provided with a sliding groove, and the two sides of the support platform are slidably connected to the two sides of the fixed platform.

[0014] By employing the above technical solution, this utility model provides a workpiece support height adjustment device for CNC lathes. It possesses at least the following beneficial effects:

[0015] (1) This utility model starts the motor fixedly installed on the support plate, thereby driving the output shaft of the motor to rotate the bidirectional threaded rod. Since the two ends of the bidirectional threaded rod are machined with threads of opposite directions and respectively mesh with two threaded sleeves, the support posture can be flexibly adjusted to ensure accurate and stable adaptive support for different workpieces. This solves the problem that workpiece positioning depends on manual operation, which is time-consuming and difficult to guarantee accuracy, resulting in low production changeover efficiency and unstable batch processing accuracy, which seriously restricts the automated production cycle and overall processing quality.

[0016] (2) To ensure that the support frame can be firmly locked after being adjusted to a suitable angle to withstand various forces during processing, this utility model includes a positioning device. When it is necessary to unlock and adjust the angle of the support frame, the electric telescopic rod is extended. After the angle is adjusted, the electric telescopic rod is retracted. During the retraction of the electric telescopic rod, the compressed spring releases its stored elastic potential energy, pushing the connecting plate, long rod, baffle, and locking pin to move in the opposite direction until the locking pin is precisely inserted into the corresponding concave hole on the rotating shaft, thereby achieving automatic and reliable locking of the support frame angle and ensuring processing stability. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional appearance structure of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the fixed platform in this utility model (section view).

[0020] Figure 3 This is a three-dimensional structural diagram of the motor and the bidirectional threaded rod in this utility model;

[0021] Figure 4 This is a three-dimensional structural diagram of the electric telescopic rod and connecting plate in this utility model.

[0022] In the diagram: 1. Support device; 101. Support base; 102. Fixed platform; 103. Handle; 104. Worm gear; 105. Worm wheel; 106. Lead screw; 107. Lead screw sleeve; 108. Support platform; 109. Support frame; 2. Adjustment device; 201. Support plate; 202. Motor; 203. Bidirectional threaded rod; 204. Threaded sleeve; 205. Rectangular plate; 206. Slider; 207. Rotating shaft; 3. Positioning device; 301. Fixed plate; 302. Electric telescopic rod; 303. Connecting plate; 304. Long rod; 305. Spring; 306. Rectangular block; 307. Baffle; 308. Locking post. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 - Figure 4 As shown, this utility model provides a technical solution:

[0025] Example 1

[0026] A workpiece support height adjustment device for a CNC lathe, such as Figure 1 - Figure 3 As shown, the device includes a support device 1, which includes a support base 101. A fixed platform 102 is fixedly connected to the top of the support base 101. A handle 103 is provided on one side of the fixed platform 102. A worm gear 104 is fixedly connected to the side of the handle 103 near the fixed platform 102. A worm wheel 105 is meshed on the circumferential surface of the worm gear 104. A lead screw 106 passes through the inside of the worm wheel 105 and is fixedly connected to it. A lead screw sleeve 107 is fitted on the circumferential surface of the lead screw 106 and is rotatably connected to it. A support platform 108 is fixedly connected to the end of the lead screw sleeve 107 away from the lead screw 106. A support frame 109 is provided above the support platform 108. The device also includes an adjustment device 2 for quickly adjusting the spacing of the support frame 109 and a positioning device 3 for fixing the adjustment device 2.

[0027] The adjustment device 2 includes a support plate 201. A motor 202 is fixedly connected to the top of the support plate 201. A bidirectional threaded rod 203 is fixedly connected to the output shaft of the motor 202. A threaded sleeve 204 is rotatably connected to the circumferential surface of the bidirectional threaded rod 203 near the motor 202. A rectangular plate 205 is fixedly connected to the top of the threaded sleeve 204. Slider blocks 206 are fixedly connected to the bottom of both sides of the rectangular plate 205. A rotating shaft 207 is rotatably connected to the top surface of the rectangular plate 205. In the above design, the fixed connection between the motor 202 and the bidirectional threaded rod 203 can accurately convert the rotational motion into the synchronous reverse translation of the support frame 109, thereby achieving the effect of automatic adjustment of the spacing.

[0028] One side of the support plate 201 is fixedly connected to one side of the support platform 108. The end of the slider 206 away from the rectangular plate 205 is slidably connected to the groove opened on the top surface of the support platform 108. The bottom surface of the rectangular plate 205 is set on the top surface of the support platform 108. Several recesses are opened on the circumferential surface of the rotating shaft 207. The top end of the rotating shaft 207 is fixedly connected to the bottom of the support frame 109. In the above design, the support plate 201 is fixedly connected to the side of the support platform 108, which can provide a stable installation foundation for the motor 202 and ensure the overall motion accuracy.

[0029] The top surface of the support platform 108 is provided with a sliding groove, and the two sides of the support platform 108 are slidably connected to the two sides of the fixed platform 102. In the above design, the sliding connection between the slider 206 and the sliding groove can provide precise guidance for the movement of the support frame 109 and prevent deflection, thus ensuring the stability of the spacing adjustment.

[0030] Example 2

[0031] like Figure 4 As shown, the positioning device 3 includes a fixed plate 301. An electric telescopic rod 302 is fixedly connected to one side of the fixed plate 301. A connecting plate 303 is fixedly connected to the end of the electric telescopic rod 302 away from the fixed plate 301. Long rods 304 are fixedly connected to both sides of the connecting plate 303 away from the electric telescopic rod 302. A spring 305 is sleeved on the circumferential surface of the long rod 304 near the connecting plate 303 and is fixedly connected to the long rod 304. A rectangular block 306 is fixedly connected to one end of the spring 305. A baffle 307 is fixedly connected to the end of the long rod 304 away from the connecting plate 303. A locking post 308 is fixedly connected to the middle of the baffle 307 near the rectangular block 306.

[0032] The bottom end of the fixed plate 301 is fixedly connected to the top surface of the rectangular plate 205. The rectangular block 306 is hollow inside and passes through the circumferential surface of the rotating shaft 207 and is rotatably connected to the rotating shaft 207. One end of the long rod 304 is fixedly connected to the surface of the connecting plate 303 away from the electric telescopic rod 302, and the other end is fixedly connected to the surface of the baffle 307 near the rectangular block 306. The circumferential surface slides through both ends of the rectangular block 306. In the above design, the fixed plate 301 is fixedly connected to the top of the rectangular plate 205, which enables the positioning device 3 to move synchronously with the support frame 109 and maintain the angle locking function continuously and effectively.

[0033] One end of the spring 305 is fixedly connected to the surface of the connecting plate 303 near the long rod 304, and the other end is fixedly connected to the surface of the rectangular block 306 near the connecting plate 303. The end of the locking post 308 away from the baffle 307 is provided in a recessed hole on the circumferential surface of the rotating shaft 207. In the above design, the spring 305 achieves a reliable angle locking effect through the elastic connection between the connecting plate 303 and the rectangular block 306.

[0034] In use, the CNC lathe workpiece support height adjustment device of this utility model first starts the motor 202 fixedly mounted on the support plate 201, thereby driving the output shaft of the motor 202 to rotate the bidirectional threaded rod 203. Since the two ends of the bidirectional threaded rod 203 are machined with threads of opposite directions and respectively mesh with two threaded sleeves 204, when the bidirectional threaded rod 203 rotates, the two threaded sleeves 204 will simultaneously move closer or further away from each other in a straight line in opposite directions. A rectangular plate 205 is fixedly connected to the top of each threaded sleeve 204. To ensure that the rectangular plate 205 and the threaded sleeves 204 maintain stable linear motion and do not rotate, sliders 206 are provided on both sides of the bottom of the rectangular plate 205, and the sliders 206 are embedded in and... The sliding connection is made within a pre-set groove on the top of the support platform 108, thus forming a reliable guide. This allows the linear movement of the rectangular plate 205 to synchronously move the rotating shaft 207 at its top and the support frame 109 fixed to the top of the rotating shaft 207, achieving symmetrical spacing between the two support frames 109. Simultaneously, the rotating shaft 207 allows the support frame 109 fixed to its top to not only translate synchronously with the rectangular plate 205 to adjust the spacing, but also to rotate independently around the axis of the rotating shaft 207. This allows for flexible adjustment of the support posture, ensuring precise and stable adaptive support for different workpieces. This solves the problem of relying on manual workpiece positioning, which is time-consuming and lacks precision, leading to low changeover efficiency, unstable batch processing accuracy, and severely restricting the automated production cycle and overall processing quality. Secondly, to ensure that the support frame 109 can be firmly locked after being adjusted to the appropriate angle to withstand various forces during processing, a positioning device 3 is provided. When it is necessary to unlock and adjust the angle of the support frame 109, the electric telescopic rod 302 is extended, causing it to push the connecting plate 303 fixedly connected to one end to move. Simultaneously, the other end of the electric telescopic rod 302 is fixedly connected to one side of the fixed plate 301, causing it to extend and push the connecting plate 303 towards the rotating shaft 207. This movement compresses the spring 305 sleeved on the long rod 304, and the long rod 304 causes the baffle 307 and the locking pin 308 fixed thereon to retract from the recess on the circumferential surface of the rotating shaft 207. At this point, the rotational constraint between the rotating shaft 207 and the support frame 109 is released, allowing the support frame 109 to be adjusted to the desired working angle. After the angle adjustment is complete, the electric telescopic rod 302 is retracted. During the retraction of the electric telescopic rod 302, the compressed spring 305 releases its stored elastic potential energy, pushing the connecting plate 303, the long rod 304, the baffle 307 and the locking pin 308 to move in the opposite direction until the locking pin 308 is precisely inserted into the corresponding concave hole on the rotating shaft 207, thereby realizing the automatic and reliable locking of the angle of the support frame 109 and ensuring the stability of the processing.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A workpiece support height adjustment device for a CNC lathe, comprising a support device (1), characterized in that: The support device (1) includes a support base (101), a fixed platform (102) is fixedly connected to the top of the support base (101), a handle (103) is provided on one side of the fixed platform (102), a worm (104) is fixedly connected to the side of the handle (103) near the fixed platform (102), a worm wheel (105) is meshed on the circumferential surface of the worm (104), a lead screw (106) passes through the inside of the worm wheel (105) and is fixedly connected to the worm wheel (105), a lead screw sleeve (107) is sleeved on the circumferential surface of the lead screw (106) and is rotatably connected to the lead screw (106), a support platform (108) is fixedly connected to the end of the lead screw sleeve (107) away from the lead screw (106), and a support frame (109) is provided above the support platform (108). It also includes an adjustment device (2) for quickly adjusting the spacing of the support frame (109); Positioning device (3) is used to fix the adjusting device (2).

2. The workpiece support height adjustment device for a CNC lathe according to claim 1, characterized in that: The adjustment device (2) includes a support plate (201), a motor (202) is fixedly connected to the top of the support plate (201), a bidirectional threaded rod (203) is fixedly connected to the output shaft of the motor (202), a threaded sleeve (204) is rotatably connected to the circumferential surface of the bidirectional threaded rod (203) near the motor (202), a rectangular plate (205) is fixedly connected to the top of the threaded sleeve (204), sliders (206) are fixedly connected to the bottom of both sides of the rectangular plate (205), and a rotating shaft (207) is rotatably connected to the top surface of the rectangular plate (205).

3. The workpiece support height adjustment device for a CNC lathe according to claim 2, characterized in that: One side of the support plate (201) is fixedly connected to one side of the support platform (108). The end of the slider (206) away from the rectangular plate (205) is slidably connected to the groove opened on the top surface of the support platform (108). The bottom surface of the rectangular plate (205) is set on the top surface of the support platform (108). Several recesses are opened on the circumferential surface of the rotating shaft (207). The top end of the rotating shaft (207) is fixedly connected to the bottom of the support frame (109).

4. The workpiece support height adjustment device for a CNC lathe according to claim 1, characterized in that: The positioning device (3) includes a fixed plate (301), an electric telescopic rod (302) is fixedly connected to one side of the fixed plate (301), a connecting plate (303) is fixedly connected to one end of the electric telescopic rod (302) away from the fixed plate (301), a long rod (304) is fixedly connected to both sides of the connecting plate (303) away from the electric telescopic rod (302), a spring (305) is sleeved on the circumferential surface of the long rod (304) near the connecting plate (303) and fixedly connected to the long rod (304), a rectangular block (306) is fixedly connected to one end of the spring (305), a baffle (307) is fixedly connected to one end of the long rod (304) away from the connecting plate (303), and a locking post (308) is fixedly connected to the middle of the baffle (307) near the rectangular block (306).

5. The workpiece support height adjustment device for a CNC lathe according to claim 4, characterized in that: The bottom end of the fixing plate (301) is fixedly connected to the top surface of the rectangular plate (205). The rectangular block (306) is hollow inside and passes through the circumferential surface of the rotating shaft (207) and is rotatably connected to the rotating shaft (207). One end of the long rod (304) is fixedly connected to the side surface of the connecting plate (303) away from the electric telescopic rod (302), and the other end is fixedly connected to the side surface of the baffle (307) near the rectangular block (306), and the circumferential surface slides through both ends of the rectangular block (306).

6. The workpiece support height adjustment device for a CNC lathe according to claim 4, characterized in that: One end of the spring (305) is fixedly connected to the surface of the connecting plate (303) near the long rod (304), and the other end is fixedly connected to the surface of the rectangular block (306) near the connecting plate (303). The end of the locking post (308) away from the baffle (307) is provided in a recessed hole on the circumferential surface of the rotating shaft (207).

7. The workpiece support height adjustment device for a CNC lathe according to claim 1, characterized in that: The top surface of the support platform (108) is provided with a sliding groove, and the two sides of the support platform (108) are slidably connected to the two sides of the fixed platform (102).

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