Automatic turning mechanism for shaft workpiece machining

Abstract

The utility model discloses an automatic turning mechanism for shaft workpiece processing, which comprises a bottom plate, a mounting groove arranged on the bottom plate, a mounting seat arranged on the bottom plate, a driving mechanism arranged in the mounting groove and used for driving the mounting seat to move back and forth, a rotating disc arranged on the mounting seat, and a rotating mechanism arranged in the mounting seat and used for driving the rotating disc to rotate, an adjusting mechanism is arranged on the rotating disc, two sets of clamping assemblies are installed on the adjusting mechanism, by arranging the adjusting mechanism, the distance between the two sets of clamping assemblies can be adjusted conveniently, a turning rotating driver is started to drive a rotating shaft to rotate, and therefore a driving gear arranged on the outer side of the rotating shaft in a sleeving mode rotates together; and meanwhile, the two sets of driven racks meshed with the connecting rods are driven to move relatively, so that the clamping assemblies arranged on the connecting rods adjust the distance so as to adapt to long shaft workpieces, and the problem that the clamping distance is inconvenient to adjust is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft workpiece processing devices, in particular to an automatic turning mechanism for shaft workpiece processing. Background Art

[0002] Shaft parts are one of the common typical parts; according to the different structural forms of shaft parts, they can generally be divided into three categories: smooth shafts, stepped shafts and special-shaped shafts, or divided into solid shafts, hollow shafts, etc. They are used in machines to support transmission parts such as gears and pulleys to transmit torque or motion. When assembling and processing shaft workpieces, after processing one end of the workpiece, the clamping position of the other end of the workpiece needs to be replaced, and then the processing continues. The processing of both ends needs to ensure relative consistency to ensure the processing accuracy and processing quality. At present, manual reversing or robot reversing clamping is used, which leads to secondary clamping of the workpiece, and the clamping accuracy of the workpiece cannot be guaranteed, and thus the processing quality of the workpiece cannot be guaranteed.

[0003] In the prior art, for example, a Chinese utility model patent (public number CN219190000U) discloses an automatic turning mechanism for assembling a shaft workpiece, wherein the rotating shaft is driven to rotate by turning on the second motor, and the semi-circular disc rotates accordingly. The rotation of the arc-shaped side of the semi-circular disc drives the upper convex plate to rotate through friction, thereby driving the steering column fixed to the top of the convex plate to rotate, and the steering plate sleeved on the steering column rotates accordingly. When the semi-circular disc rotates 180°, the convex part on one side of the convex plate will be blocked by the block. When the flat side of the semi-circular disc contacts the upper convex plate, the convex plate will fall a certain distance, realizing the intermittent 180° rotation of the convex plate and the steering plate, eliminating the need to manually remove the shaft workpiece and turn it around for secondary assembly processing, ensuring the secondary clamping accuracy of the shaft workpiece, thereby ensuring the processing quality of the workpiece, but the device can only perform simple positioning and steering work on the shaft workpiece. When the length of the shaft workpiece is long, it is not convenient to adjust the clamping spacing, and the clamping stability is poor, which may cause the shaft workpiece to shake during processing, so as to enhance its applicability. Utility Model Content

[0004] In view of the above problems, an automatic turning mechanism for machining shaft workpieces is provided to solve the problem that the clamping distance is inconvenient to adjust.

[0005] In order to solve the existing technical problems, the utility model provides the following technical solutions to achieve the above-mentioned purpose:

[0006] An automatic turning mechanism for shaft workpiece processing comprises a base plate, a mounting groove is formed on the base plate, a mounting seat is provided on the base plate, a driving mechanism for driving the mounting seat to move back and forth is installed in the mounting groove, a rotating disk is provided on the mounting seat, a rotating mechanism for driving the rotating disk to rotate is provided in the mounting seat, an adjusting mechanism is provided on the rotating disk, two groups of clamping assemblies are installed on the adjusting mechanism, and the spacing between the two groups of clamping assemblies is adjusted by the adjusting mechanism.

[0007] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] Preferably, the adjusting mechanism includes a direction-changing rotation driver arranged on the top of the rotating disk, the output end of the direction-changing rotation driver is connected to the rotating shaft, a mounting plate is installed on the top of the rotating shaft, and the bottom of the mounting plate is connected to the direction-changing rotation driver by a fixed rod, sliding bars are slidably provided on the opposite sides of the mounting plate, the ends of the two sliding bars are connected to connecting rods, and the two connecting rods are arranged opposite to each other, and clamping assemblies are installed on the top of the two connecting rods, a driving gear is sleeved on the outer side of the rotating shaft, and a driven rack matching the driving gear is provided on the opposite side of the two sliding bars, and the distance between the two groups of clamping assemblies is adjusted by driving the driven rack.

[0009] Preferably, a limiting groove matching with the mounting plate is provided on the top of the sliding bar.

[0010] Preferably, the clamping assembly comprises a mounting box mounted on the top of the connecting rod, two clamping blocks are slidably disposed in the mounting box, and a clamping drive mechanism for driving the clamping blocks to move relative to or oppositely is disposed in the mounting box.

[0011] Preferably, the clamping block is a V-shaped clamp.

[0012] Preferably, the clamping drive mechanism includes a bidirectional screw arranged in the installation box, and threaded holes matching the bidirectional screw are opened on the two clamping blocks, and one end of the bidirectional screw is connected to the output end of the rotating motor.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. The utility model is convenient for adjusting the spacing between the two groups of clamping assemblies by setting an adjustment mechanism. By starting the reversing rotary driver to drive the rotating shaft to rotate, the driving gear sleeved on the outer side of the rotating shaft rotates together. While rotating, the two groups of driven racks meshing therewith are driven to move relative to each other, so that the clamping assemblies set on the connecting rod can adjust the spacing to adapt to longer shaft workpieces.

[0015] 2. The utility model sets the supporting block of the clamping assembly into a V-shaped clamp, which is convenient for clamping shaft workpieces of different diameters. The V-shaped clamp can accurately position the workpiece, especially the cylindrical workpiece, to ensure its symmetry and verticality. The V-shaped clamp provides good stability and can reduce the vibration of the workpiece during processing or measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a three-dimensional structural schematic diagram of an automatic turning mechanism for shaft workpiece processing.

[0017] Figure 2 The present invention is a schematic diagram of the driving mechanism structure of an automatic turning mechanism for shaft workpiece processing.

[0018] Figure 3 The present invention is a schematic diagram of the rotating mechanism structure of an automatic turning mechanism for shaft workpiece processing.

[0019] Figure 4 The present invention is a schematic diagram of the top view structure of an adjustment mechanism of an automatic turning mechanism for shaft workpiece processing.

[0020] Figure 5 The present invention is a schematic diagram of the structure of an adjustment mechanism of an automatic turning mechanism for machining shaft workpieces, viewed from above.

[0021] Figure 6 The present invention is a schematic diagram of the limit groove structure of an automatic turning mechanism for shaft workpiece processing.

[0022] Figure 7 The present invention is a schematic diagram of the structure of a clamping component of an automatic turning mechanism for machining shaft workpieces.

[0023] The numbers in the figure are: 100, bottom plate; 101, mounting groove; 102, forward and reverse motor; 103, threaded rod; 104, threaded block; 200, mounting seat; 201, rotation driver; 202, first bevel gear; 203, second bevel gear; 204, rotating rod; 205, rotating disk; 300, direction-changing rotation driver; 301, rotating shaft; 302, driving gear; 303, mounting plate; 304, fixing rod; 305, connecting rod; 306, sliding bar; 307, driven rack; 308, limiting groove; 400, mounting box; 401, bidirectional screw; 402, clamping block; 403, rotation motor. DETAILED DESCRIPTION

[0024] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] See also Figure 1-Figure 7As shown, an automatic turning mechanism for shaft workpiece processing includes a base plate 100, a mounting groove 101 is opened on the base plate 100, a mounting seat 200 is provided on the base plate 100, a driving mechanism for driving the mounting seat 200 to move back and forth is installed in the mounting groove 101, a rotating disk 205 is provided on the mounting seat 200, a rotating mechanism for driving the rotating disk 205 to rotate is provided in the mounting seat 200, an adjusting mechanism is provided on the rotating disk 205, two groups of clamping assemblies are installed on the adjusting mechanism, and the spacing between the two groups of clamping assemblies is adjusted by the adjusting mechanism.

[0026] By opening a mounting groove 101 on the bottom plate 100, it is convenient to install the driving mechanism. A forward and reverse motor 102 is provided on one side of the bottom plate 100. The output end of the forward and reverse motor 102 is connected to a threaded rod 103, and the threaded rod 103 is located inside the mounting groove 101. The end of the threaded rod 103 away from the forward and reverse motor 102 is rotatably connected to the inner wall of the mounting groove 101. A threaded block 104 is provided on the outer threaded sleeve of the threaded rod 103. The top of the threaded block 104 is fixedly connected to the mounting seat 200. When the forward and reverse motor 102 is started, the threaded rod 103 can be driven to rotate, thereby driving the threaded block 104 to move on the threaded rod 103. The moving direction of the threaded block 104 is controlled by the forward and reverse motor 102. When the clamping assembly clamps After the shaft workpiece is unblocked, when a U-turn is required, the mounting seat 200 is driven away from A through the driving mechanism, and then the rotating mechanism is used to rotate and turn around, and the rotating driver 201 is started to drive the first bevel gear 202 to rotate. Since the first bevel gear 202 and the second bevel gear 203 are meshed with each other, the first bevel gear 202 rotates and drives the second bevel gear 203 to rotate at the same time. A rotating rod 204 is inserted through the middle of the second bevel gear 203. The bottom of the rotating rod 204 is rotatably connected to the bottom of the inner wall of the mounting seat 200, and the top thereof is fixedly connected to the rotating disk 205. Therefore, when the second bevel gear 203 rotates, it also drives the rotating rod 204 to rotate, thereby driving the rotating disk 205 to rotate, thereby performing a U-turn and steering operation.

[0027] See also Figure 4-Figure 6 As shown, the adjustment mechanism includes a direction-changing rotation driver 300 arranged on the top of the rotating disk 205, the output end of the direction-changing rotation driver 300 is connected to the rotating shaft 301, a mounting plate 303 is installed on the top of the rotating shaft 301, and the bottom of the mounting plate 303 is connected to the direction-changing rotation driver 300 through a fixed rod 304, sliding bars 306 are slidably provided on the opposite sides of the mounting plate 303, the ends of the two sliding bars 306 are connected to the connecting rod 305, and the two connecting rods 305 are arranged opposite to each other, and clamping assemblies are installed on the top of the two connecting rods 305, a driving gear 302 is sleeved on the outer side of the rotating shaft 301, and a driven rack 307 matching the driving gear 302 is provided on the opposite side of the two sliding bars 306, and the distance between the two groups of clamping assemblies is adjusted by driving the driven rack 307.

[0028] By starting the reversing rotation driver 300, the rotating shaft 301 is driven to rotate, so that the driving gear 302 mounted on the outside of the rotating shaft 301 rotates together. While rotating, it can drive the two sets of driven racks 307 meshing with it to move relative to each other, thereby driving the clamping assembly set on the connecting rod 305 to adjust the spacing to accommodate longer shaft workpieces. The driving gear 302 and the driven rack 307 cooperate to push the connecting rod 305 to move, and the two connecting rods 305 maintain consistency in movement.

[0029] See also Figure 6 As shown, a limiting groove 308 matching with the mounting plate 303 is formed on the top of the sliding bar 306 .

[0030] The limiting groove 308 on the sliding bar 306 cooperates with the limiting bar protruding from the mounting plate 303, so that when the driving gear 302 drives the driven rack 307, the sliding bar 306 moves more smoothly, preventing the sliding bar 306 from deflecting during the movement, so that it moves horizontally.

[0031] See also Figure 7 As shown, the clamping assembly includes a mounting box 400 mounted on the top of the connecting rod 305, two clamping blocks 402 are slidably disposed in the mounting box 400, and a clamping drive mechanism for driving the clamping blocks 402 to move relative or oppositely is disposed in the mounting box 400.

[0032] When the shaft workpiece needs to be processed, it is necessary to fix the shaft workpiece first. The two clamping blocks 402 are driven by the clamping drive mechanism to move toward or against each other in the installation box 400, so that the shaft workpiece is clamped by the two clamping blocks 402. This is the case for both sets of clamping components. After being fixed, it is convenient to send the shaft workpiece to A for processing.

[0033] See also Figure 7 As shown, the clamping block 402 is a V-shaped clamp.

[0034] By setting the clamping block 402 as a V-shaped clamp, it is convenient to clamp shaft workpieces of different diameters. The V-shaped clamp can accurately position the workpiece, especially the cylindrical workpiece, to ensure its symmetry and verticality. The V-shaped clamp provides good stability and can reduce the vibration of the workpiece during processing or measurement, and has higher applicability.

[0035] See also Figure 7 As shown, the clamping drive mechanism includes a bidirectional screw 401 arranged in the installation box 400, and two clamping blocks 402 are both provided with threaded holes that match the bidirectional screw 401, and one end of the bidirectional screw 401 is connected to the output end of the rotating motor 403.

[0036] The rotating motor 403 is started to drive the bidirectional screw 401 connected to its output end. The bidirectional screw 401 has opposite threads on its surface. When rotating, it drives the two clamping blocks 402 to move towards or against each other so as to clamp the shaft workpiece.

[0037] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. An automatic turning mechanism for machining a shaft workpiece, comprising a base plate (100), a mounting groove (101) being formed on the base plate (100), a mounting seat (200) being provided on the base plate (100), a driving mechanism for driving the mounting seat (200) to move back and forth being installed in the mounting groove (101), a rotating disk (205) being provided on the mounting seat (200), and a rotating mechanism for driving the rotating disk (205) to rotate being provided in the mounting seat (200), characterized in that: The rotating disk (205) is provided with an adjustment mechanism, on which two groups of clamping assemblies are mounted, and the spacing between the two groups of clamping assemblies is adjusted by the adjustment mechanism.

2. The automatic turning mechanism for shaft workpiece processing according to claim 1, characterized in that: The adjustment mechanism comprises a direction-changing rotation driver (300) arranged on the top of the rotating disk (205); the output end of the direction-changing rotation driver (300) is connected to the rotating shaft (301); a mounting plate (303) is installed on the top of the rotating shaft (301); the bottom of the mounting plate (303) is connected to the direction-changing rotation driver (300) via a fixing rod (304); sliding bars (306) are slidably arranged on opposite sides of the mounting plate (303); the ends of the two sliding bars (306) are connected to the connecting rod (305), and the two connecting rods (305) are arranged opposite to each other; a clamping assembly is installed on the top of the two connecting rods (305); a driving gear (302) is sleeved on the outer side of the rotating shaft (301); a driven rack (307) matched with the driving gear (302) is provided on the opposite side of the two sliding bars (306); and the distance between the two groups of clamping assemblies is adjusted by driving the driven rack (307).

3. The automatic turning mechanism for machining a shaft workpiece according to claim 2, characterized in that: The top of the sliding bar (306) is provided with a limiting groove (308) which matches with the mounting plate (303).

4. The automatic turning mechanism for machining a shaft workpiece according to claim 2, characterized in that: The clamping assembly comprises a mounting box (400) mounted on the top of the connecting rod (305), two clamping blocks (402) are slidably arranged in the mounting box (400), and a clamping driving mechanism for driving the clamping blocks (402) to move relative to or opposite to each other is arranged in the mounting box (400).

5. The automatic turning mechanism for machining a shaft workpiece according to claim 4, characterized in that: The clamping block (402) is a V-shaped clamp.

6. The automatic turning mechanism for machining a shaft workpiece according to claim 4, characterized in that: The clamping drive mechanism comprises a bidirectional screw (401) arranged in the installation box (400), and two clamping blocks (402) are both provided with threaded holes matching with the bidirectional screw (401), and one end of the bidirectional screw (401) is connected to the output end of the rotating motor (403).

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