A lathe headstock fine boring fixture
By designing a fine boring fixture with adjusting clamping height function on the lathe head box, the workpiece instability caused by fixing clamping height in the prior art is solved, and higher machining accuracy and efficiency are achieved.
Patent Information
- Application Number
- CN202421491047.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-04-04
- Estimated Expiration
- 2034-06-27
AI Technical Summary
During the processing process, the existing fine boring fixtures lack clamping force due to the fixing height of the clamping fixtures, resulting in unstable clamping and affecting the precision and efficiency of fine boring.
A lathe headboard precision boring fixture is designed, and the first cylinder and the rear baffle are longitudinally clamped, and the height of the second cylinder is adjusted through the screw and slide mechanism driven by the servo motor to achieve stable clamping of the workpiece.
By adjusting the clamping height, stable clamping can be performed in the appropriate position of the workpiece, improving machining accuracy and efficiency, and avoiding loose workpieces.
Smart Images
Figure CN222711580U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lathes, in particular to a precision boring fixture for a headstock of a lathe. Background Art
[0002] With the rapid development of modern manufacturing industry, the precision and efficiency of machine tool processing technology have become key factors affecting product competitiveness. In the process of machine tool processing, the fixture is an important tool to connect the machine tool and the workpiece. Its performance directly affects the processing accuracy and efficiency. Especially in the processing of lathe headstock, the design and use of precision boring fixtures are of great significance to ensure processing accuracy and improve production efficiency.
[0003] When the fine boring fixtures on the market are used, they are generally fixed on the lathe bed, which will cause the distance between the fixture and the lathe bed to be constant. Each time, it can only be clamped at a specific position on the workpiece. Since the height of the workpiece may vary, the fixture is clamped at a lower position, which will cause the upper part of the workpiece to lack clamping force, and further cause the workpiece to be clamped not stable enough. Especially during fine boring operations, the force of the boring tool acts directly on the workpiece. At this time, the clamping height of the fixture cannot be adjusted, which will cause the stable center of the clamp to not correspond to the stable center of the workpiece, which will affect the clamping effect and cause the workpiece to become loose during the fine boring process. In view of this, we proposed a fine boring fixture for the lathe headstock. Utility Model Content
[0004] The utility model aims to provide a lathe headstock fine boring fixture to solve the defects mentioned in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] A lathe headstock precision boring fixture comprises a precision boring table, a rear side baffle is fixedly mounted on the upper surface of one end of the precision boring table, a first cylinder is fixedly mounted on the upper surface of the other end of the precision boring table, a clamping assembly is arranged on the left and right side surfaces of the precision boring table, the clamping assembly comprises a guide rail fixedly mounted on the side surface of the precision boring table in a vertical shape, a servo motor is fixedly mounted on the bottom end of the guide rail, a lead screw is fixedly mounted on the end of the output shaft of the servo motor, a slider is threadedly connected to the lead screw, the slider is slidably connected to the guide rail, a support plate is fixedly mounted on the end of the slider, a second cylinder is fixedly mounted on the side surface of the support plate, a clamping plate is arranged on the telescopic shafts of the first cylinder and the second cylinder, and a rubber pressure block is arranged on the side surface of the clamping plate.
[0007] Preferably, a rubber pad is provided on the side of the rear baffle plate close to the first cylinder, and the rubber pad is used for wear-resistant protection operation.
[0008] Preferably, the two second cylinders are opposite to each other and are used for clamping on both side surfaces of the workpiece.
[0009] Preferably, a slide groove is provided in the guide rail along the height direction of the guide rail, and the sliding block is located in the slide groove and is slidably connected to the slide groove.
[0010] Preferably, a rectangular plate is fixedly mounted on the ends of the telescopic shafts of the first cylinder and the second cylinder, and the clamping plate is fixedly mounted on the side surface of the rectangular plate.
[0011] Preferably, a rubber bottom plate is integrally formed on the rubber pressing block, and the rubber bottom plate is fixedly connected to the clamping plate by a plurality of fastening bolts.
[0012] Preferably, two mutually symmetrical left and right guide sleeves are fixedly mounted on the side surface of the support plate, and two mutually symmetrical left and right guide pillars are fixedly mounted on the back surface of the clamping plate. The guide sleeves are sleeved on the guide pillars and are slidably connected to the guide pillars.
[0013] Preferably, the cross-sections of the slider and the slide groove are both T-shaped, and the size of the slider is matched with the size of the slide groove.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] 1. The utility model realizes the longitudinal clamping operation of the workpiece by means of the first cylinder and the rear baffle plate. In addition, the clamping assembly can be used to clamp the other two sides of the workpiece. When the servo motor is working, the height of the second cylinder can be adjusted, and the clamping height can be further adjusted, so that the workpiece can be clamped at a suitable position, thereby achieving the effect of adjustable clamping height and stable clamping.
[0016] 2. The utility model can increase the friction between the workpiece and the rubber pad and the rubber pressure block, and it is not easy to scratch the surface of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 It is a schematic diagram of the explosion structure of the utility model;
[0019] Figure 3 It is a structural schematic diagram of the clamping assembly of the utility model;
[0020] Figure 4 It is a schematic diagram of the exploded structure of the clamping assembly of the utility model;
[0021] Figure 5 It is a partial structural schematic diagram of the clamping assembly of the utility model.
[0022] The meaning of each number in the figure is:
[0023] 1. Fine boring table; 10. Rear baffle; 11. Rubber pad;
[0024] 2. First cylinder;
[0025] 3. Clamping assembly; 30. Guide rail; 301. Slide groove; 31. Servo motor; 311. Lead screw; 32. Slider; 33. Support plate; 34. Second cylinder; 341. Rectangular plate; 35. Clamping plate; 36. Guide sleeve; 37. Guide column; 38. Rubber bottom plate; 381. Rubber pressure block. DETAILED DESCRIPTION
[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0027] See also Figure 1-Figure 5 The utility model provides a technical solution: a lathe headstock fine boring fixture, comprising a fine boring table 1, a rear baffle plate 10 is fixedly installed on the upper surface of one end of the fine boring table 1, and a first cylinder 2 is fixedly installed on the upper surface of the other end of the fine boring table 1, so that the first cylinder 2 is used to clamp the workpiece against the rear baffle plate 10;
[0028] Specifically, a clamping assembly 3 is provided on both the left and right side surfaces of the precision boring table 1, and the clamping assembly 3 includes a guide rail 30 fixedly installed vertically on the side surface of the precision boring table 1, a servo motor 31 is fixedly installed at the bottom end of the guide rail 30, a screw rod 311 is fixedly installed at the end of the output shaft of the servo motor 31, a slider 32 is threadedly connected to the screw rod 311, the slider 32 is slidably connected to the guide rail 30, a support plate 33 is fixedly installed at the end of the slider 32, a second cylinder 34 is fixedly installed on the side surface of the support plate 33, clamping plates 35 are provided on the telescopic shafts of the first cylinder 2 and the second cylinder 34, and a rubber pressure block 381 is provided on the side surface of the clamping plate 35, which is convenient for adjusting the height of the second cylinder 34 and then clamping the workpiece, so that the clamping at the corresponding position on the workpiece is more stable.
[0029] In this embodiment, a rubber pad 11 is provided on the side of the rear baffle plate 10 close to the first cylinder 2, and the rubber pad 11 is used for wear-resistant protection operation.
[0030] Specifically, the two second cylinders 34 are opposite to each other and are used to clamp the two side surfaces of the workpiece to achieve a stable clamping operation.
[0031] Furthermore, a slide groove 301 is provided in the guide rail 30 along the height direction of the guide rail 30, and the slider 32 is located in the slide groove 301 and is slidably connected to the slide groove 301, so that the sliding of the slider 32 is more stable and smooth; the cross-sections of the slider 32 and the slide groove 301 are both T-shaped, and the size of the slider 32 is adapted to the size of the slide groove 301.
[0032] In addition, the ends of the telescopic shafts of the first cylinder 2 and the second cylinder 34 are fixedly mounted with rectangular plates 341, and the clamping plate 35 is fixedly mounted on the side of the rectangular plate 341 by a plurality of fastening bolts, so as to facilitate the fixed installation operation.
[0033] It is worth noting that a rubber bottom plate 38 is integrally formed on the rubber pressing block 381 , and the rubber bottom plate 38 is fixedly connected to the clamping plate 35 by a plurality of fastening bolts, so as to facilitate the fixed installation and disassembly and replacement operations of the rubber pressing block 381 .
[0034] It is worth noting that two symmetrical guide sleeves 36 are fixedly installed on the side of the support plate 33, and two symmetrical guide posts 37 are fixedly installed on the back of the clamping plate 35. The guide sleeves 36 are sleeved on the guide posts 37 and are slidably connected to the guide posts 37, thereby guiding the movement of the clamping plate 35.
[0035] When the lathe headstock fine boring fixture of the utility model is in use, the workpiece is placed on the fine boring table 1, and then the first cylinder 2 is started and made to work. When the first cylinder 2 works, the telescopic shaft thereon extends and drives the rubber pressure block 381 at the end of the telescopic shaft to clamp and fix the workpiece on the rear baffle 10. Then, according to the height of the workpiece, the servo motor 31 is connected to the external power supply and made to work. When the servo motor 31 works, the output shaft thereon rotates and drives the screw rod 311 to rotate. The rotation of the screw rod 311 drives the slider 32 threadedly connected thereto to move. The movement of the slider 32 drives the second cylinder 34 to move, so as to adjust the height of the second cylinder 34. After the height of the second cylinder 34 is adjusted, the second cylinder 34 is started and made to work. When the second cylinder 34 works, the telescopic shaft thereon extends and drives the rubber pressure block 381 at the end of the telescopic shaft to clamp the workpiece at the corresponding position, thereby completing the stable clamping operation.
[0036] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. A lathe headstock fine boring fixture, comprising a fine boring table (1), characterized in that: A rear baffle (10) is fixedly mounted on the upper surface of one end of the precision boring table (1), a first cylinder (2) is fixedly mounted on the upper surface of the other end of the precision boring table (1), and a clamping assembly (3) is arranged on both the left and right side surfaces of the precision boring table (1), the clamping assembly (3) comprises a guide rail (30) fixedly mounted vertically on the side surface of the precision boring table (1), a servo motor (31) is fixedly mounted at the bottom end of the guide rail (30), and an output shaft end of the servo motor (31) is fixedly mounted on the bottom end of the guide rail (30). A screw rod (311) is fixedly installed, a slider (32) is threadedly connected to the screw rod (311), the slider (32) is slidably connected to the guide rail (30), a support plate (33) is fixedly installed at the end of the slider (32), a second cylinder (34) is fixedly installed on the side of the support plate (33), a clamping plate (35) is arranged on the telescopic shaft of the first cylinder (2) and the second cylinder (34), and a rubber pressure block (381) is arranged on the side of the clamping plate (35).
2. The lathe headstock fine boring fixture according to claim 1, characterized in that: A rubber pad (11) is provided on the side of the rear baffle plate (10) close to the first cylinder (2), and the rubber pad (11) is used for wear-resistant protection operation.
3. The lathe headstock fine boring fixture according to claim 1, characterized in that: The two second cylinders (34) are opposite to each other and are used for clamping on both sides of the workpiece.
4. The lathe headstock fine boring fixture according to claim 1, characterized in that: The guide rail (30) is provided with a slide groove (301) arranged along the height direction of the guide rail (30), and the sliding block (32) is located in the slide groove (301) and is slidably connected to the slide groove (301).
5. The lathe headstock fine boring fixture according to claim 1, characterized in that: A rectangular plate (341) is fixedly mounted on the ends of the telescopic shafts of the first cylinder (2) and the second cylinder (34), and the clamping plate (35) is fixedly mounted on the side of the rectangular plate (341).
6. The lathe headstock fine boring fixture according to claim 1, characterized in that: A rubber bottom plate (38) is integrally formed on the rubber pressing block (381), and the rubber bottom plate (38) is fixedly connected to the clamping plate (35) via a plurality of fastening bolts.
7. The lathe headstock fine boring fixture according to claim 1, characterized in that: Two mutually symmetrical guide sleeves (36) are fixedly mounted on the side of the support plate (33), and two mutually symmetrical guide posts (37) are fixedly mounted on the back of the clamping plate (35). The guide sleeves (36) are sleeved on the guide posts (37) and are slidably connected to the guide posts (37).
8. The lathe headstock fine boring fixture according to claim 4, characterized in that: The cross-sections of the slider (32) and the slide groove (301) are both T-shaped, and the size of the slider (32) is matched with the size of the slide groove (301).