Single-feed servo tool expanding mechanism

Abstract

The utility model discloses a single-feed servo tool expanding mechanism, which belongs to the technical field of single-shaft feed, aims at solving the problems that high-precision honing processing is difficult to maintain for a long time and a honing head is difficult to replace, and comprises a feed box, a tool expanding mechanism, a connecting mechanism and the honing head, the connecting mechanism is arranged below the tool expanding mechanism, the honing head is arranged below the connecting mechanism, the upper connecting ring is fixedly connected to the outer portion of the lower portion of the honing rod, a threaded groove is formed in the honing rod, through holes are symmetrically formed in the left side and the right side of the upper connecting ring, and the threaded rod is connected to the interior of the threaded groove in a threaded mode. The lower connecting ring is fixedly connected to the outer part of the lower part of the threaded rod; by means of the connecting mechanism, the honing head can be rapidly disassembled, the structure is simple, operation is convenient and fast, the honing head can be conveniently checked and maintained regularly, the service life of equipment is prolonged, and faults are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of single-axis feeding, and in particular relates to a single-feed servo knife expansion mechanism. Background Art

[0002] At present, honing is a process of finishing the finished surface with a honing bar embedded in the honing head. The honing machine is mainly used for finishing and super finishing of the inner holes of precision parts. The single feed mechanism of the honing machine is an important mechanism to realize the real-time expansion of the honing oilstone during honing. Its feed amount, feed control accuracy and feed mode are one of the important factors affecting the stability of the honing process.

[0003] In the prior art, the feeding mechanism of the honing machine mostly adopts a hydraulically driven hydraulic cylinder to realize the expansion and contraction of the honing head oilstone. The complexity of the hydraulic system and the characteristics of the hydraulic oil result in relatively low control accuracy, making it difficult to maintain high-precision honing processing for a long time. Problems such as wear and leakage of hydraulic components will further affect the processing accuracy. The complexity and fragility of the hydraulic system lead to high maintenance costs. The replacement of hydraulic components and the repair of seals require high technical requirements and cost investment; and the honing head is usually fixed to the honing machine by screws or other fasteners. If the fixing method is not designed reasonably or the screws are too tight, it may cause difficulty in disassembly and replacement of the honing head, which increases the difficulty of maintenance.

[0004] Therefore, a single-feed servo tool expansion mechanism is needed to solve the problems in the prior art that it is difficult to maintain high-precision honing processing for a long time and it is difficult to replace the honing head. Utility Model Content

[0005] The purpose of the utility model is to provide a single-feed servo knife-climbing mechanism to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a single-feed servo knife-expanding mechanism, comprising a feed box, a knife-expanding mechanism, a connecting mechanism and a honing head, wherein the knife-expanding mechanism is arranged above and inside the feed box, the connecting mechanism is arranged below the knife-expanding mechanism, and the honing head is arranged below the connecting mechanism.

[0007] The connecting mechanism consists of a honing rod, an upper connecting ring, a threaded rod, a lower connecting ring and a positioning assembly. The upper connecting ring is fixedly connected to the lower exterior of the honing rod. A threaded groove is provided inside the honing rod, and through holes are symmetrically provided on the left and right sides of the upper connecting ring.

[0008] It should be noted in the solution that the threaded rod is threadedly connected to the inside of the threaded groove, the lower connecting ring is fixedly connected to the lower outside of the threaded rod, and the positioning assembly is symmetrically arranged inside the left and right sides of the lower connecting ring.

[0009] It is further worth explaining that the positioning assembly consists of a positioning column, a baffle, a connecting spring, a push plate, a positioning block, a fixed plate, a sliding rod and a telescopic spring. The positioning column is slidably connected to the upper and lower sides of the lower connecting ring, the baffle is fixedly connected to the bottom surface of the positioning column, and the connecting spring is fixedly connected between the bottom surface of the lower connecting ring and the top surface of the baffle, and is sleeved on the outside of the positioning column.

[0010] It should be further explained that a groove is provided on the top surface of the positioning column, the fixed plate is fixedly connected to the middle part of the groove, the sliding rod passes through the fixed plate, and the two ends of the sliding rod are fixedly connected to the groove, the push plate is symmetrically slidably connected to the outside of the sliding rod, and the telescopic spring is fixedly connected between the push plate and the fixed plate, and is sleeved on the outside of the sliding rod.

[0011] As a preferred embodiment, the positioning block is fixedly connected to one side of the lower side of the push plate close to the outer wall of the positioning column and extends out of the positioning column, and the top surface of the positioning block is provided with an inclined surface.

[0012] As a preferred embodiment, the height from the bottom surface of the positioning block to the top surface of the positioning column extending out of the lower connecting ring after the connecting spring is fully compressed is the same as the height of the upper connecting ring and the lower connecting ring.

[0013] As a preferred embodiment, the knife expansion mechanism is composed of a drive motor, a reduction motor, a coupling, a ball screw, a ball nut, a fixing rod, a limit plate, a connecting plate and a connecting column. The drive motor is arranged above the feed box, the reduction motor is fixedly connected to the output end of the drive motor, the coupling is connected to the output end of the reduction motor, the ball screw is fixedly connected to the bottom of the coupling, and the ball nut is threadedly connected to the outside of the ball screw.

[0014] As a preferred embodiment, the fixing rod is symmetrically fixedly connected to the inside of the feed box, the limit plate is slidably connected to the outside of the fixing rod, the limit plate is fixedly connected to the ball screw, the connecting plate is fixedly connected to the bottom of the ball nut, the connecting column is fixedly connected to the bottom of the connecting plate, and the honing rod is fixedly connected to the bottom of the connecting column.

[0015] Compared with the prior art, the single-feed servo knife-increasing mechanism provided by the utility model has at least the following beneficial effects:

[0016] (1) The honing head can be quickly disassembled through the provided connection mechanism. The structure is simple and the operation is convenient, which facilitates regular inspection and maintenance of the honing head to extend the life of the equipment and reduce the occurrence of failures.

[0017] (2) The tool expansion mechanism is set up to avoid the wear and leakage of hydraulic components that will further affect the processing accuracy. The coordinated rotation of the drive motor, ball screw and ball nut is converted into the power of up and down movement, ensuring the precise movement of the honing rod, achieving precise movement, improving control accuracy, and maintaining high-precision honing processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 For the utility model Figure 2 The enlarged structural diagram at A in the middle;

[0021] Figure 4 It is a schematic diagram of the disassembled structure of the connecting mechanism of the utility model.

[0022] In the figure: 1. feed box; 2. knife expansion mechanism; 3. connecting mechanism; 4. honing head; 201. drive motor; 202. reduction motor; 203. coupling; 204. ball screw; 205. ball nut; 206. fixing rod; 207. limit plate; 208. connecting plate; 209. connecting column; 301. honing rod; 302. upper connecting ring; 303. threaded groove; 304. through hole; 305. threaded rod; 306. lower connecting ring; 307. positioning assembly; 3071. positioning column; 3072. baffle; 3073. connecting spring; 3074. push plate; 3075. positioning block; 3076. fixing plate; 3077. slide rod; 3078. telescopic spring. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the embodiments.

[0024] See also Figure 1-4 The utility model provides a single-feed servo knife-raising mechanism, including a feed box 1, a knife-raising mechanism 2, a connecting mechanism 3 and a honing head 4. The knife-raising mechanism 2 is arranged above and inside the feed box 1, the connecting mechanism 3 is arranged below the knife-raising mechanism 2, and the honing head 4 is arranged below the connecting mechanism 3.

[0025] The connecting mechanism 3 is composed of a honing rod 301, an upper connecting ring 302, a threaded rod 305, a lower connecting ring 306 and a positioning assembly 307. The upper connecting ring 302 is fixedly connected to the lower outside of the honing rod 301. A threaded groove 303 is provided inside the honing rod 301, and through holes 304 are symmetrically provided on the left and right sides of the upper connecting ring 302.

[0026] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth explaining in detail that the threaded rod 305 is threadedly connected to the inside of the threaded groove 303, the lower connecting ring 306 is fixedly connected to the lower outside of the threaded rod 305, and the positioning components 307 are symmetrically arranged on the left and right sides of the lower connecting ring 306.

[0027] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth specifically explaining that the positioning assembly 307 is composed of a positioning column 3071, a baffle 3072, a connecting spring 3073, a push plate 3074, a positioning block 3075, a fixing plate 3076, a sliding rod 3077 and a telescopic spring 3078. The positioning column 3071 is slidably connected to the upper and lower sides of the lower connecting ring 306, the baffle 3072 is fixedly connected to the bottom surface of the positioning column 3071, and the connecting spring 3073 is fixedly connected to the bottom surface of the lower connecting ring 306 and the baffle 3 072, and is sleeved on the outside of the positioning column 3071. The top surface of the positioning column 3071 is provided with a groove. The fixing plate 3076 is fixedly connected to the middle of the groove. The sliding rod 3077 passes through the fixing plate 3076, and the two ends of the sliding rod 3077 are fixedly connected to the groove. The push plate 3074 is symmetrically slidably connected to the outside of the sliding rod 3077. The telescopic spring 3078 is fixedly connected between the push plate 3074 and the fixing plate 3076, and is sleeved on the outside of the sliding rod 3077.

[0028] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth to explain in detail that the positioning block 3075 is fixedly connected to the side of the outer wall of the positioning column 3071 below the push plate 3074 and extends out of the positioning column 3071, and the top surface of the positioning block 3075 is provided with an inclined surface;

[0029] By means of the provided inclined surface, when the threaded rod 305 is screwed into the threaded groove 303 , the positioning block 3075 is squeezed through the through hole 304 and received inside the positioning column 3071 , thereby ensuring the threaded rod 305 to be stably installed and improving the practicality of the mechanism.

[0030] Further as Figure 2 , Figure 3 and Figure 4 As shown, it is worth to explain in detail that the height from the bottom surface of the positioning block 3075 to the top surface of the positioning column 3071 extending out of the lower connecting ring 306 after the connecting spring 3073 is fully compressed is the same as the height of the upper connecting ring 302 and the lower connecting ring 306;

[0031] The positioning column 3071 is inserted into the through hole 304 until the positioning block 3075 is on the top surface of the upper connecting ring 302. The push plate 3074 is reset under the elastic action of the telescopic spring 3078, so that the positioning block 3075 extends out of the positioning column 3071 and is fixed on the top surface of the upper connecting ring 302, thereby re-fixing the connection between the upper connecting ring 302 and the lower connecting ring 306.

[0032] According to the above working process, it can be known that the honing head 4 can be quickly disassembled through the provided connecting mechanism 3, the structure is simple, the operation is convenient, and it is convenient to regularly inspect and maintain the honing head 4 to extend the life of the equipment and reduce the occurrence of failures.

[0033] Further as Figure 1 and Figure 2 As shown, it is worth specifically explaining that the knife expansion mechanism 2 is composed of a drive motor 201, a reduction motor 202, a coupling 203, a ball screw 204, a ball nut 205, a fixing rod 206, a limit plate 207, a connecting plate 208 and a connecting column 209. The drive motor 201 is arranged above the feed box 1, the reduction motor 202 is fixedly connected to the output end of the drive motor 201, the coupling 203 is connected to the output end of the reduction motor 202, the ball screw 204 is fixedly connected to the bottom of the coupling 203, and the ball nut 205 is threadedly connected to the outside of the ball screw 204.

[0034] Further as Figure 1 and Figure 2 As shown, it is worth to explain in detail that the fixing rod 206 is symmetrically fixedly connected to the inside of the feed box 1, the limiting plate 207 is slidably connected to the outside of the fixing rod 206, the limiting plate 207 is fixedly connected to the ball screw 204, the connecting plate 208 is fixedly connected to the bottom of the ball nut 205, the connecting column 209 is fixedly connected to the bottom of the connecting plate 208, and the honing rod 301 is fixedly connected to the bottom of the connecting column 209;

[0035] The limiting plate 207 is slidably connected to the outside of the fixing rod 206 , so that the rotation of the ball nut 205 can be limited, ensuring that the ball screw 204 can move up and down stably.

[0036] This scheme has the following working process: when in use, the driving motor 201 and the reduction motor 202 are controlled to start, the ball screw 204 is driven to rotate through the coupling 203, and the limit plate 207 is slidably connected to the outside of the fixed rod 206, so that the rotation of the ball nut 205 can be limited to ensure that the ball screw 204 can move up and down stably, and the connecting column 209 below is driven to move through the connecting plate 208, thereby driving the honing rod 301 below to achieve precise movement; when it is necessary to disassemble and replace the honing head 4 below, the push plates 3074 on both sides are pushed toward each other, so that the positioning block 3075 below can be driven to move, so that the positioning block 3075 is retracted into the interior of the positioning column 3071, and then the positioning column 3071 can be completely passed through the through hole 304, and then the threaded rod 305 is rotated, so that the threaded rod 305 can be separated from the honing rod 301, and the threaded rod 305 is disassembled, so that the honing head 4 can be disassembled and replaced.

[0037] In summary: by setting up the knife expansion mechanism 2, it is possible to avoid problems such as wear and leakage of hydraulic components that will further affect the processing accuracy. By driving the motor 201, the ball screw 204 and the ball nut 205 to cooperate in rotation, it is converted into power for up and down movement, thereby ensuring the precise movement of the honing rod 301, achieving precise movement, improving control accuracy, and maintaining high-precision honing processing; by setting up the connecting mechanism 3, the honing head 4 can be quickly disassembled, the structure is simple, the operation is convenient, and it is convenient to regularly inspect and maintain the honing head 4 to extend the life of the equipment and reduce the occurrence of failures.

Claims

1. A single-feed servo knife-raising mechanism, comprising a feed box (1), a knife-raising mechanism (2), a connecting mechanism (3) and a honing head (4), characterized in that: The knife expansion mechanism (2) is arranged above and inside the feed box (1), the connecting mechanism (3) is arranged below the knife expansion mechanism (2), and the honing head (4) is arranged below the connecting mechanism (3); The connecting mechanism (3) is composed of a honing rod (301), an upper connecting ring (302), a threaded rod (305), a lower connecting ring (306) and a positioning assembly (307); the upper connecting ring (302) is fixedly connected to the lower exterior of the honing rod (301); a threaded groove (303) is provided inside the honing rod (301); and through holes (304) are symmetrically provided on the left and right sides of the upper connecting ring (302).

2. The single-feed servo knife expansion mechanism according to claim 1, characterized in that: The threaded rod (305) is threadedly connected to the inside of the threaded groove (303), the lower connecting ring (306) is fixedly connected to the lower outside of the threaded rod (305), and the positioning assembly (307) is symmetrically arranged inside the left and right sides of the lower connecting ring (306).

3. The single-feed servo knife expansion mechanism according to claim 2, characterized in that: The positioning assembly (307) is composed of a positioning column (3071), a baffle (3072), a connecting spring (3073), a push plate (3074), a positioning block (3075), a fixing plate (3076), a sliding rod (3077) and a telescopic spring (3078). The positioning column (3071) is slidably connected to the upper and lower sides of the lower connecting ring (306), the baffle (3072) is fixedly connected to the bottom surface of the positioning column (3071), and the connecting spring (3073) is fixedly connected between the bottom surface of the lower connecting ring (306) and the top surface of the baffle (3072), and is sleeved on the outside of the positioning column (3071).

4. The single-feed servo knife expansion mechanism according to claim 3, characterized in that: The top surface of the positioning column (3071) is provided with a groove, the fixed plate (3076) is fixedly connected to the middle part of the groove, the sliding rod (3077) passes through the fixed plate (3076), and the two ends of the sliding rod (3077) are fixedly connected to the groove, the pushing plate (3074) is symmetrically slidably connected to the outside of the sliding rod (3077), and the telescopic spring (3078) is fixedly connected between the pushing plate (3074) and the fixed plate (3076), and is sleeved on the outside of the sliding rod (3077).

5. The single-feed servo knife expansion mechanism according to claim 4, characterized in that: The positioning block (3075) is fixedly connected to one side of the lower part of the push plate (3074) close to the outer wall of the positioning column (3071), and extends out of the positioning column (3071), and the top surface of the positioning block (3075) is provided with an inclined surface.

6. The single-feed servo knife-increasing mechanism according to claim 5, characterized in that: The height from the bottom surface of the positioning block (3075) to the top surface of the positioning column (3071) extending out of the lower connecting ring (306) after the connecting spring (3073) is fully compressed is the same as the height of the upper connecting ring (302) and the lower connecting ring (306).

7. The single-feed servo knife-increasing mechanism according to claim 1, characterized in that: The knife expansion mechanism (2) is composed of a driving motor (201), a reduction motor (202), a coupling (203), a ball screw (204), a ball nut (205), a fixing rod (206), a limit plate (207), a connecting plate (208) and a connecting column (209); the driving motor (201) is arranged above the feed box (1); the reduction motor (202) is fixedly connected to the output end of the driving motor (201); the coupling (203) is connected to the output end of the reduction motor (202); the ball screw (204) is fixedly connected to the bottom of the coupling (203); and the ball nut (205) is threadedly connected to the outside of the ball screw (204).

8. The single-feed servo knife-increasing mechanism according to claim 7, characterized in that: The fixing rod (206) is symmetrically fixedly connected to the inside of the feed box (1), the limiting plate (207) is slidably connected to the outside of the fixing rod (206), the limiting plate (207) is fixedly connected to the ball screw (204), the connecting plate (208) is fixedly connected to the bottom of the ball nut (205), the connecting column (209) is fixedly connected to the bottom of the connecting plate (208), and the honing rod (301) is fixedly connected to the bottom of the connecting column (209).

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