Multi-station clamp for shaft machining

Abstract

The utility model discloses a shaft machining multi-station clamp which comprises a fixing disc, a support is fixedly connected to the fixing disc, a rotating motor is fixedly connected in the support, the output end of the rotating motor is fixedly connected with a driving gear, a connecting rod is fixedly connected to the center of the upper face of the fixing disc, and a clamping disc is installed on the connecting rod in a sliding mode. A sliding rod is arranged in the clamping disc in a sliding mode, a first connecting shaft is rotationally installed in the fixing disc, a clamping column is fixedly connected to the upper end of the first connecting shaft, a clamping column is rotationally connected to the lower end of the sliding rod, and a conical clamping hole is formed in the clamping column. A rotating motor is started to drive a driving gear to rotate, the driving gear rotates to drive a driven gear to rotate, the driven gear rotates to drive a clamping column below to rotate through a first connecting shaft, the clamping column rotates to drive a shaft to rotate, and then the contact position of the surface of the shaft and machining equipment is adjusted; and machining procedures such as cutting and grinding on the shaft piece are facilitated.

Description

Technical Field

[0001] The utility model relates to a fixture, in particular to a multi-station fixture for shaft machining. Background Technique

[0002] Shaft workpieces are common workpieces. When machining shaft workpieces, it is first necessary to fix the workpiece and then perform machining to ensure machining accuracy. Existing fixtures are often relatively single and can only clamp one workpiece at a time, which greatly reduces the machining efficiency. To improve the machining efficiency, a multi-station fixture is required, which can clamp multiple shafts at a time and cooperate with multiple machining mechanisms to synchronously machine multiple shafts at a time, effectively improving the machining efficiency.

[0003] For example, a multi-station shaft fixture with a publication number of CN205571952U disclosed in a Chinese patent. This multi-station shaft fixture includes a bottom plate and a support seat located on the bottom plate. The support seat is provided with a plurality of grooves. On both sides of the support seat along the arrangement direction of the grooves, there are support frames respectively. The support frames are provided with guide plates. At positions corresponding to the grooves on the guide plates, there are guide holes. There is a pressing plate on the guide plate. At positions corresponding to the guide holes below the pressing plate, there are pressing heads. Rotary seats are respectively provided on the support frames. Locking brackets are provided on the rotary seats. Locking bolts are provided on the locking brackets. By providing a plurality of grooves on the support seat, it is suitable for mass production of workpieces, saving the clamping time and improving the machining efficiency. By sequentially providing a support frame, a guide plate, a pressing plate and a locking bracket on the support seat, the shaft workpiece can be fixed radially, so that the workpiece will not rotate during the machining process and is always firmly clamped, ensuring the machining quality;

[0004] Some problems are found when using the above-mentioned existing multi-station shaft fixture. First, when machining the surface of the shaft part, such as cutting and grinding, the shaft part is clamped and fixed and cannot rotate itself, resulting in the problem that the machining equipment needs to go around the surface of the shaft part in a circle and may interfere with adjacent shaft parts beside it. Content of the Utility Model

[0005] The purpose of the utility model is to provide a multi-station fixture for shaft machining to solve the problems mentioned in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solution: A multi-station fixture for shaft machining, including a fixed disk, a bracket is fixedly connected to the fixed disk, a rotary motor is fixedly connected inside the bracket, a driving gear is fixedly connected to the output end of the rotary motor, a connecting rod is fixedly connected to the center of the upper surface of the fixed disk, a clamping disk is slidably mounted on the connecting rod, a sliding rod is slidably arranged inside the clamping disk, a first connecting shaft is rotatably mounted inside the fixed disk, a clamping column is fixedly connected to the upper end of the first connecting shaft, the lower end of the sliding rod is rotatably connected to the clamping column, a tapered clamping hole is formed inside the clamping column, a driven gear is fixedly connected to the lower end of the first connecting shaft, and the driven gear is in cooperation with the driving gear.

[0007] Preferably, fixed feet are fixedly connected to both sides of the bracket.

[0008] Preferably, a limiting sliding groove is formed inside the connecting rod, a sliding hole is formed inside the clamping disk, a limiting sliding block is fixedly connected inside the sliding hole, and the limiting sliding block is slidably engaged with the limiting sliding groove.

[0009] Preferably, a threaded adjusting rod is rotatably mounted inside the limiting sliding groove, an adjusting motor is fixedly connected to the upper end of the connecting rod, the output end of the adjusting motor is fixedly connected to the threaded adjusting rod, a threaded sleeve block is embedded inside the limiting sliding block, and the threaded sleeve block is in threaded cooperation with the threaded adjusting rod.

[0010] Preferably, a connecting frame is fixedly connected to the upper surface of the clamping disk, and a return spring is fixedly connected to the top inside the connecting frame.

[0011] Preferably, two limiting disks are fixedly connected to the sliding rod, the two limiting disks are respectively located above and below the clamping disk, and the upper limiting disk is fixedly connected to the other end of the return spring.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] 1. The return spring can provide a certain thrust to the upper clamping column through the limiting disk and the sliding rod. After the two ends of the shaft part are respectively inserted into the tapered clamping holes of the upper and lower clamping columns, under the push of the return spring, the sliding rod will drive the upper clamping column to move downward and reset, thereby initially clamping the shaft part, avoiding the problem that multiple persons are needed to hold the shaft part during the fixing process of multiple shaft parts.

[0014] 2. By starting the rotary motor, the driving gear can be driven to rotate. The rotation of the driving gear will drive the driven gear to rotate. The rotation of the driven gear will drive the lower clamping column to rotate through the first connecting shaft. The rotation of the clamping column will drive the shaft part to rotate, thereby adjusting the position of the surface of the shaft part in contact with the processing equipment, facilitating machining processes such as cutting and grinding of the shaft part. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall structural schematic diagram of the present utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure on the other side of the present utility model;

[0017] Figure 3 This is a sectional view of the present utility model;

[0018] Figure 4 This is a half-sectional view of the clamping column of the present utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the clamping disc of the present utility model.

[0020] In the figure: 1. Fixed disc; 101. Bracket; 102. Fixed foot; 103. Rotating motor; 104. Driving gear; 2. First connecting shaft; 201. Driven gear; 3. Clamping column; 301. Tapered clamping hole; 4. Connecting rod; 401. Limit sliding groove; 402. Thread adjusting rod; 403. Adjusting motor; 5. Clamping disc; 501. Connecting frame; 502. Return spring; 503. Sliding hole; 504. Limit slider; 505. Thread sleeve block; 6. Slide bar; 601. Limit disc. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying 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 shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-5 , the present utility model provides a technical solution: a multi-station fixture for shaft processing, including a fixed disc 1, a bracket 101 is fixedly connected to the fixed disc 1, a rotating motor 103 is fixedly connected inside the bracket 101, a driving gear 104 is fixedly connected to the output end of the rotating motor 103, a connecting rod 4 is fixedly connected to the center of the upper surface of the fixed disc 1, a clamping disc 5 is slidably installed on the connecting rod 4, a slide bar 6 is slid inside the clamping disc 5, a first connecting shaft 2 is rotatably installed inside the fixed disc 1, a clamping column 3 is fixedly connected to the upper end of the first connecting shaft 2, the lower end of the slide bar 6 is rotatably connected to the clamping column 3, a tapered clamping hole 301 is opened inside the clamping column 3, a driven gear 201 is fixedly connected to the lower end of the first connecting shaft 2, and the driven gear 201 cooperates with the driving gear 104.

[0023] In this implementation scheme, through the cooperation of the clamping columns 3 respectively fixed on the driven gear 201 and the sliding rod 6, the shaft member is inserted into the conical clamping hole 301. The clamping disc 5 is slidably installed on the connecting rod 4. Furthermore, the clamping disc 5 can slide up and down. When the clamping disc 5 moves downward, it will drive the sliding rod 6 to move. Then, through the sliding rod 6, the clamping column 3 fixed below is driven to move, so that the distance between the upper and lower clamping columns 3 is reduced, thereby fixing the shaft member inserted into the conical clamping hole 301. At the same time, because the conical clamping hole 301 is conical, the clamped shaft member will be at the center of the conical clamping hole 301, thereby positioning the clamped shaft member, which is convenient for subsequent direct positioning and processing of the shaft member. Starting the rotation motor 103 can drive the driving gear 104 to rotate. The driving gear 104 meshes with the driven gear 201. Then, the rotation of the driving gear 104 will drive the driven gear 201 to rotate. The rotation of the driven gear 201 will drive the clamping column 3 below to rotate through the first connecting shaft 2. The rotation of the clamping column 3 will drive the shaft member to rotate, thereby adjusting the position of the surface of the shaft member in contact with the processing equipment, which is convenient for processing such as cutting and grinding of the shaft member.

[0024] Among them, in order to achieve the purpose of adjusting the height of the clamping disc 5, the following technical solution is adopted for this device: Fixed feet 102 are fixedly connected to both sides of the bracket 101. A limiting chute 401 is provided in the connecting rod 4. A sliding hole 503 is provided in the clamping disc 5. A limiting slider 504 is fixedly connected in the sliding hole 503. The limiting slider 504 is slidably matched with the limiting chute 401. A threaded adjusting rod 402 is rotatably installed in the limiting chute 401. The upper end of the connecting rod 4 is fixedly connected with an adjusting motor 403. The output end of the adjusting motor 403 is fixedly connected with the threaded adjusting rod 402. A threaded sleeve block 505 is embedded in the limiting slider 504. The threaded sleeve block 505 is in threaded cooperation with the threaded adjusting rod 402.

[0025] The device can be fixed on the processing device through the fixed feet 102. The limiting chute 401 and the limiting slider 504 are slidably matched to limit the clamping disc 5 to only move up and down. Starting the adjusting motor 403 can drive the threaded adjusting rod 402 to rotate. The threaded adjusting rod 402 is in threaded cooperation with the threaded sleeve block 505. Then, the rotation of the threaded adjusting rod 402 will drive the limiting slider 504 to move, thereby adjusting the height of the clamping disc 5.

[0026] Among them, in order to achieve the purpose of facilitating the clamping and fixing of the shaft member, the following technical solution is adopted for this device: A connecting frame 501 is fixedly connected to the upper surface of the clamping disc 5. A return spring 502 is fixedly connected to the inner top of the connecting frame 501. Two limiting discs 601 are fixedly connected to the sliding rod 6. The two limiting discs 601 are respectively located above and below the clamping disc 5. The upper limiting disc 601 is fixedly connected to the other end of the return spring 502.

[0027] The travel of the sliding rod 6 can be restricted by two limit discs 601, thereby preventing the sliding rod 6 from sliding out of the inside of the clamping disc 5. The return spring 502 can provide a certain thrust to the sliding rod 6 through the limit disc 601. During the clamping process of the shaft part, first place the shaft part in the tapered clamping hole 301 of the lower clamping column 3, and then push the upper clamping column 3 upward so that the upper end of the shaft part can be inserted into the tapered clamping hole 301 in the upper clamping column 3. Subsequently, under the push of the return spring 502, the sliding rod 6 will drive the upper clamping column 3 to move downward and reset, thereby initially clamping the shaft part, avoiding the need for multiple personnel to hold the shaft part during the fixing of multiple shaft parts, and moving the clamping disc 5 to finally fix the shaft part.

[0028] The working principle and usage process of the present utility model: When in use, the device needs to be fixed at a suitable position. Place the shaft part in the tapered clamping hole 301 of the lower clamping column 3, and then push the upper clamping column 3 upward so that the upper end of the shaft part can be inserted into the tapered clamping hole 301 in the upper clamping column 3. Subsequently, under the push of the return spring 502, the sliding rod 6 will drive the upper clamping column 3 to move downward and reset, thereby initially clamping the shaft part. Repeat the above operation to initially fix multiple shaft parts between the upper and lower groups of clamping columns 3. Then start the adjustment motor 403 to drive the threaded adjustment rod 402 to rotate. The rotation of the threaded adjustment rod 402 will drive the clamping disc 5 to move. The movement of the clamping disc 5 will drive the upper clamping column 3 to move downward, reducing the distance between the upper and lower clamping columns 3, thereby fixing the shaft part inserted into the tapered clamping hole 301. Starting the rotation motor 103 can drive the driving gear 104 to rotate. The rotation of the driving gear 104 will drive the driven gear 201 to rotate. The rotation of the driven gear 201 will drive the lower clamping column 3 to rotate through the first connecting shaft 2. The rotation of the clamping column 3 will drive the shaft part to rotate, thereby adjusting the position where the surface of the shaft part contacts the processing equipment.

[0029] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-station fixture for shaft machining, including a fixed disk (1), characterized in that: A bracket (101) is fixedly connected to the fixed disk (1). A rotary motor (103) is fixedly connected inside the bracket (101). A driving gear (104) is fixedly connected to the output end of the rotary motor (103). A connecting rod (4) is fixedly connected to the center of the upper surface of the fixed disk (1). A clamping disk (5) is slidably mounted on the connecting rod (4). A sliding rod (6) slides inside the clamping disk (5). A first connecting shaft (2) is rotatably mounted inside the fixed disk (1). A clamping column (3) is fixedly connected to the upper end of the first connecting shaft (2). The lower end of the sliding rod (6) is rotatably connected to the clamping column (3). A tapered clamping hole (301) is formed inside the clamping column (3). A driven gear (201) is fixedly connected to the lower end of the first connecting shaft (2). The driven gear (201) is engaged with the driving gear (104).

2. The multi-station fixture for shaft machining according to claim 1, characterized in that: Fixed feet (102) are fixedly connected to both sides of the bracket (101).

3. The multi-station fixture for shaft machining according to claim 1, characterized in that: A limiting sliding groove (401) is formed inside the connecting rod (4). A sliding hole (503) is formed inside the clamping disk (5). A limiting sliding block (504) is fixedly connected inside the sliding hole (503). The limiting sliding block (504) is slidably engaged with the limiting sliding groove (401).

4. The multi-station fixture for shaft machining according to claim 3, wherein: A threaded adjusting rod (402) is rotatably mounted inside the limiting sliding groove (401). An adjusting motor (403) is fixedly connected to the upper end of the connecting rod (4). The output end of the adjusting motor (403) is fixedly connected to the threaded adjusting rod (402). A threaded sleeve block (505) is embedded inside the limiting sliding block (504). The threaded sleeve block (505) is threadedly engaged with the threaded adjusting rod (402).

5. The multi-station fixture for shaft machining according to claim 1, characterized in that: A connecting frame (501) is fixedly connected to the upper surface of the clamping disk (5). A return spring (502) is fixedly connected to the top inside the connecting frame (501).

6. The multi-station fixture for shaft machining according to claim 5, wherein: Two limiting disks (601) are fixedly connected to the sliding rod (6). The two limiting disks (601) are respectively located above and below the clamping disk (5). The upper limiting disk (601) is fixedly connected to the other end of the return spring (502).

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