Numerical control machining tool provided with sliding structure and facilitating workpiece clamping

Abstract

The utility model discloses a numerical control machine tool with a sliding structure and convenient for clamping a workpiece. The numerical control machine tool comprises a machine tool body and a bracket, by means of the mechanical linkage design, a worker only needs to pull the connecting plate, the multiple clamping plates can synchronously move along the center position of a workpiece, so that the clamping plates clamp and fix the workpiece, and therefore by means of the device, the work intensity and difficulty of the worker are reduced, and the work efficiency is improved. And the workpiece machining efficiency is also improved. Through the design of a locking function, the state of a workpiece clamped by the clamping plate can be locked, the stability of the workpiece during machining is ensured, in addition, after the top surface of the workpiece is machined, the top surface and the bottom surface of the workpiece can be switched through the design of an overturning function, and a worker can conveniently machine the bottom surface of the workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, and particularly relates to a numerical control machining tool with a sliding structure for facilitating clamping of workpieces. Background Technique

[0002] A numerical control machine tool is an automated machine tool equipped with a program control system. This control system can logically process a program with control codes or other symbolic instructions, decode it, represent it in coded numbers, and input it into the numerical control device through an information carrier.

[0003] With the publication number "CN221337607U" and the patent name: A numerical control machine tool with an adjustable clamping mechanism. In the device in this published document, manual movement of a large number of sliding rods is required to sequentially clamp and fix a large number of clamping plates to the workpiece. Such an operation method is time-consuming and laborious, not only increasing the work difficulty and intensity of the staff, but also affecting the processing efficiency of the workpiece. Based on this, the utility model designs a numerical control machining tool with a sliding structure for facilitating clamping of workpieces to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a numerical control machining tool with a sliding structure for facilitating clamping of workpieces to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A numerical control machining tool with a sliding structure for facilitating clamping of workpieces, including a machine tool body and a bracket. The brackets are fixed on the left and right sides inside the machine tool body. A circular ring frame is arranged between the brackets in pairs, and connecting pins fixed on the left and right sides outside the circular ring frame rotatably penetrate through the brackets. A clamping assembly is arranged on the outer wall of the circular ring frame. The clamping assembly includes rotating rods transferred to the four corners inside the circular ring frame. Installation sleeves are thread sleeved on the upper and lower ends of the rotating rods, and a top plate is transferred inside the installation sleeve. One end of the top plate away from the installation sleeve is transferred with a clamping plate. A limiting pin fixed in the middle on the outer side of the clamping plate slidably penetrates through the circular ring frame. A circular ring-shaped rack is transferred on the top of the circular ring frame. A gear fixedly sleeved on the rotating rod is meshed with the teeth of the rack. A connecting plate is fixed at the front end of the top of the rack, and a screw pin thread penetrates through the top of the connecting plate. A plurality of threaded holes are integrally arranged on the front side of the top end inside the circular ring frame.

[0006] Furthermore, the upper installation sleeve is designed to be left-threaded connected to the rotating rod, and the lower installation sleeve is designed to be right-threaded connected to the rotating rod.

[0007] Furthermore, the center of the circular ring-shaped rack is concentric with the center of the circular ring frame, and a support plate is slidably connected to the lower end inside the bracket.

[0008] Furthermore, springs are fixedly installed at the four corners of the bottom of the support plate, and one end of each spring away from the support plate is fixedly connected to the machine tool body.

[0009] Furthermore, a connecting rod is rotatably connected to the lower end inside the bracket. The connecting rod and the spring are designed to be misaligned with each other, and a cam is fixedly sleeved around the middle part of the outer side of the connecting rod.

[0010] Furthermore, a first motor is fixedly installed at the lower end of the outer wall of the right bracket, and the leading end of the first motor is fixedly connected to the right end of the connecting rod.

[0011] Furthermore, the first motor is a stepper motor with a self-locking function, and the first motor stops operating after rotating 180 degrees each time.

[0012] Furthermore, a second motor is fixedly installed at the upper end of the outer wall of the right bracket, and the leading end of the second motor is fixedly connected to the right end of the right connecting pin. The second motor is a stepper motor with a self-locking function, and the second motor stops operating after rotating 180 degrees each time.

[0013] Furthermore, a relief hole is integrally formed at the lower end inside the machine tool body. The relief hole is designed as a blind hole and corresponds to the cam one by one.

[0014] Furthermore, a cover is fixedly installed outside the right bracket, and a controller is fixedly installed outside the machine tool body.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. Through the mechanical linkage design of the present utility model, the staff only needs to pull the connecting plate to synchronously move multiple clamping plates along the central position of the workpiece, so as to clamp and fix the workpiece with the clamping plates. It can be seen that by using the device in this application, not only the working intensity and difficulty of the staff are reduced, but also the processing efficiency of the workpiece is improved.

[0017] 2. Through the locking function design of the present utility model, the state after the clamping plate clamps the workpiece can be locked to ensure the stability during the workpiece processing. In addition, after the top surface of the workpiece is processed, through the flipping function design, the top surface and the bottom surface of the workpiece can be switched, which is convenient for the staff to process the bottom surface of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required for the description of the embodiments. Obviously, the attached drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other attached drawings can also be obtained based on these attached drawings.

[0019] Figure 1 It is a three-dimensional view of a numerical control machine tool with a sliding structure for facilitating clamping of workpieces according to the present utility model;

[0020] Figure 2 It is a three-dimensional view of the bracket and the support plate;

[0021] Figure 3 It is a three-dimensional view of the ring frame and the rack;

[0022] Figure 4 It is a three-dimensional view of the clamping plate, the top plate, the rotating rod and the mounting sleeve;

[0023] Figure 5 It is a three-dimensional view of the clamping assembly.

[0024] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0025] 1 - machine tool body, 2 - bracket, 3 - ring frame, 4 - connecting pin, 5 - clamping assembly, 501 - rotating rod, 502 - mounting sleeve, 503 - top plate, 504 - clamping plate, 505 - limit pin, 506 - rack, 507 - gear, 508 - connecting plate, 509 - screw pin, 510 - threaded hole, 6 - support plate, 7 - spring, 8 - connecting rod, 9 - cam, 10 - first motor, 11 - second motor, 12 - relief hole, 13 - cover body, 14 - controller. Specific embodiments

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0027] Embodiment 1

[0028] As Figure 1 、 Figure 3 、 Figure 4 、 Figure 5As shown in the figure, the device includes a machine tool body 1 and a bracket 2. The bracket 2 is fixed on the left and right sides inside the machine tool body 1. A circular ring bracket 3 is arranged between the brackets 2 in pairs. Connecting pins 4 fixed on the left and right sides outside the circular ring bracket 3 rotatably penetrate through the bracket 2. A clamping assembly 5 is arranged on the outer wall of the circular ring bracket 3. The clamping assembly 5 includes rotating rods 501 transferred to the four corners inside the circular ring bracket 3. Upper and lower ends of the rotating rod 501 are threadedly sleeved with mounting sleeves 502. Inner sides of the mounting sleeves 502 are transferred with top plates 503. One end of the top plate 503 away from the mounting sleeve 502 is transferred with a clamping plate 504. A limiting pin 505 fixed in the middle of the outer side of the clamping plate 504 slidably penetrates through the circular ring bracket 3. A circular ring-shaped rack 506 with a circular ring-shaped orientation is transferred to the top of the circular ring bracket 3. A gear 507 fixedly sleeved on the rotating rod 501 is meshed with the teeth of the rack 506. A connecting plate 508 is fixed at the front end of the top of the rack 506. A screw pin 509 threadedly penetrates through the top of the connecting plate 508. A plurality of threaded holes 510 are integrally arranged at the front side of the inner top end of the circular ring bracket 3.

[0029] The upper mounting sleeve 502 and the rotating rod 501 are designed with a left-handed thread connection, and the lower mounting sleeve 502 and the rotating rod 501 are designed with a right-handed thread connection. The center of the circular ring-shaped orientation of the rack 506 is concentric with the center of the circular ring bracket 3. A support plate 6 is slidably connected to the lower end inside the bracket 2. The worker first places the workpiece into the circular ring bracket 3, and the support plate 6 supports the workpiece. Then, the connecting plate 508 is pulled, so that the connecting plate 508 drives the rack 506 together with the gear 507 and the rotating rod 501 to rotate forward. Through the threaded transmission between the rotating rod 501 and the mounting sleeve 502, the mounting sleeve 502 drives the top plate 503 together with the clamping plate 504 and the limiting pin 505 to move along the central area of the circular ring bracket 3. Through the above method, the clamping plate 504 applies a clamping force to the workpiece. Until the state of the workpiece after clamping meets the requirements of the worker, the worker then screws the screw pin 509 into the current corresponding threaded hole 510 to lock the state of the workpiece after being clamped. Then the worker can use the machine tool body 1 to process the top surface of the workpiece.

[0030] Embodiment 2

[0031] As Figure 1 、 Figure 2As shown, springs 7 are fixedly installed at the four corners of the bottom of the support plate 6. One end of the spring 7 away from the support plate 6 is fixedly connected to the machine tool body 1. A connecting rod 8 is rotatably connected to the lower end inside the bracket 2. The connecting rod 8 and the spring 7 are designed to be mutually misaligned. A cam 9 is fixedly sleeved on the middle part of the outer side of the connecting rod 8. The lower end of the outer wall of the right bracket 2 is fixedly provided with a first motor 10. The head end of the first motor 10 is fixedly connected to the right end of the connecting rod 8. The first motor 10 is a stepping motor with a self-locking function. The first motor 10 stops running after rotating 180 degrees. The upper end of the outer wall of the right bracket 2 is fixedly provided with a second motor 11. The head end of the second motor 11 is fixedly connected to the right end of the right connecting pin 4. And the second motor 11 is a stepping motor with a self-locking function. The second motor 11 stops running after rotating 180 degrees. A relief hole 12 is integrally provided at the lower end inside the machine tool body 1. The relief hole 12 is designed as a blind hole and corresponds to the cam 9 one by one. A cover 13 is fixedly provided on the outside of the right bracket 2. A controller 14 is fixedly provided on the outside of the machine tool body 1.

[0032] According to the operation method in Embodiment 1, when the support plate 6 supports the workpiece, the cam 9 supports the top of the support plate 6, and the spring 7 is in a deformed state. After the top surface of the workpiece is machined, the operator turns on the first motor 10. The first motor 10 drives the connecting rod 8 to drive the cam 9 to rotate 180 degrees and then stops running. At this time, the cam 9 and the support plate 6 are in a non-contact state, and there is a space between the bottom surface of the workpiece firmly clamped and the top surface of the support plate 6. The operator then turns on the second motor 11. The second motor 11 drives the connecting pin 4 to drive the ring frame 3 and the workpiece to rotate 180 degrees and then stops running, so as to switch the top surface and the bottom surface of the workpiece, facilitating the operator to machine the bottom surface of the workpiece. The relief hole 12 provides a rotation space for the cam 9. The cover 13 can isolate the first motor 10 and the second motor 11 from the outside, preventing the debris generated during workpiece machining from colliding with the first motor 10 and the second motor 11, and playing a protective role for the first motor 10 and the second motor 11.

Claims

1. A CNC machine tool having a sliding structure for clamping a workpiece, comprising a machine tool body (1) and a bracket (2), characterized in that: The bracket (2) is fixedly arranged on the left and right sides of the machine tool body (1), and a circular frame (3) is arranged between the brackets (2). The connecting pins (4) fixedly arranged on the left and right sides of the outside of the circular frame (3) are rotatably penetrated through the bracket (2). The outer wall of the circular frame (3) is provided with a clamping assembly (5), and the clamping assembly (5) comprises a rotating rod (501) connected to the four corners of the inside of the circular frame (3). The upper and lower ends of the outer side of the rotating rod (501) are threadedly sleeved with mounting sleeves (502), and the inner side of the mounting sleeve (502) is connected with a top plate (503), and the top plate (503) is away from the mounting sleeve ( One end of the rotating rod (502) is connected to a clamping plate (504), a limit pin (505) fixedly arranged at the middle end of the outer side of the clamping plate (504) slides through the circular ring frame (3), a rack (506) with a circular ring shape is connected to the top of the circular ring frame (3), a gear (507) fixedly sleeved on the outside of the rotating rod (501) is meshed with the gear teeth of the rack (506), a connecting plate (508) is fixedly arranged at the front end of the top of the rack (506), and a screw pin (509) is threadedly penetrated at the top of the connecting plate (508), and a plurality of threaded holes (510) are integrally arranged at the front side of the top end of the circular ring frame (3).

2. A CNC machine tool with a sliding structure for clamping a workpiece according to claim 1, characterized in that: The upper mounting sleeve (502) and the rotating rod (501) are designed to be connected by left-hand thread, and the lower mounting sleeve (502) and the rotating rod (501) are designed to be connected by right-hand thread.

3. A CNC machine tool with a sliding structure for clamping a workpiece according to claim 1, characterized in that: The center of the circular rack (506) is concentric with the center of the circular frame (3), and a support plate (6) is slidably connected to the lower end of the bracket (2).

4. A CNC machine tool with a sliding structure for clamping a workpiece according to claim 3, characterized in that: Springs (7) are fixedly arranged at the four corners of the bottom of the support plate (6); one end of the spring (7) away from the support plate (6) is fixedly connected to the machine tool body (1).

5. A CNC machine tool with a sliding structure for clamping a workpiece according to claim 1, characterized in that: A connecting rod (8) is connected to the lower end of the bracket (2), the connecting rod (8) and the spring (7) are designed to be mutually offset, and a cam (9) is fixedly sleeved on the middle end of the connecting rod (8).

6. A CNC machine tool with a sliding structure for clamping a workpiece according to claim 1, characterized in that: A first motor (10) is fixedly provided at the lower end of the outer wall of the right bracket (2), and the head end of the first motor (10) is fixedly connected to the right end of the connecting rod (8).

7. A CNC machine tool with a sliding structure for clamping a workpiece according to claim 6, characterized in that: The first motor (10) is a stepping motor with a self-locking function, and the first motor (10) stops running after rotating 180 degrees.

8. A CNC machine tool with a sliding structure for clamping a workpiece according to claim 1, characterized in that: A second motor (11) is fixedly arranged at the upper end of the outer wall of the right bracket (2); the head end of the second motor (11) is fixedly connected to the right end of the right connecting pin (4); the second motor (11) is a stepping motor with a self-locking function; the second motor (11) stops running after rotating 180 degrees.

9. A CNC machine tool with a sliding structure for clamping a workpiece according to claim 1, characterized in that: A clearance hole (12) is integrally provided at the lower end of the interior of the machine tool body (1), the clearance hole (12) is a blind hole design, and the clearance hole (12) and the cam (9) correspond to each other one by one.

10. A CNC machine tool with a sliding structure for clamping a workpiece according to claim 1, characterized in that: A cover body (13) is fixedly provided on the outside of the right bracket (2), and a controller (14) is fixedly provided on the outside of the machine tool body (1).

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