Positioning device for coupling machining

Abstract

The utility model relates to a positioning device for coupling machining, it includes first clamping mechanism, second clamping mechanism, rotating mechanism and transmission mechanism, first clamping component and second clamping component structure are same, and both opposite settings are located transmission mechanism on, transmission mechanism drives first clamping mechanism and second clamping mechanism reverse movement to each other, first clamping mechanism includes motor no.

Description

Technical Field

[0001] This utility model relates to the field of coupling processing, and in particular to a positioning device for coupling processing. Background Technology

[0002] During the machining of couplings, since couplings are mostly cylindrical and symmetrical, radial constraint is achieved through a clamping and positioning device during machining. Therefore, the positioning device is an indispensable machining equipment for couplings.

[0003] The utility model patent with patent number "202320605129.X" discloses a first clamping mechanism, with a coupling engaged on one side and a base extending through the other side. The base includes a screw threaded to one side of the first clamping mechanism, and a driven mechanism threaded to the outer wall of the screw. During clamping operations, a matching coupling is selected according to the specifications of the coupling to be processed, and then the coupling is inserted into the first clamping mechanism and the driven mechanism. While this method can adapt to couplings of different specifications in the length direction, it requires changing the "coupling" described in the text when dealing with couplings of different inner diameters, making actual operation very inconvenient.

[0004] The utility model patent with patent number "202021689691.8" and title "A Positioning Device for Coupling Processing" can position and fix the coupling from the inner wall, but the clamping mechanism of the device adopts a fixed screw transmission system. Its rigid connection characteristics make it impossible to rotate and position the workpiece after clamping. This structural limitation makes it impossible to adjust the circumferential angle of the coupling according to the process requirements during processing. Moreover, the inventor believes that the threaded sleeve-linkage mechanism based on the umbrella-shaped unfolding principle has mechanical transmission defects, and the manually operated thread adjustment mechanism has an operation delay of 0.8-1.2 seconds. Compared with other automated clamping methods, its clamping preparation time increases by 300%, which is difficult to meet the cycle time requirements of automated production lines. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a positioning device for coupling processing.

[0006] The positioning device for coupling processing provided by this utility model adopts the following technical solution:

[0007] A positioning device for coupling processing includes a first clamping mechanism, a second clamping mechanism, a rotating mechanism, and a transmission mechanism. The first clamping mechanism and the second clamping mechanism have the same structure and are arranged opposite to each other on the transmission mechanism. The transmission mechanism drives the first clamping mechanism and the second clamping mechanism to move in opposite directions. The first clamping mechanism includes a motor, a connecting seat, a connecting plate, a baffle, a hollow rotating shaft, and a clamping assembly. The rotating mechanism drives the first clamping mechanism to rotate.

[0008] Optionally, the clamping assembly includes an annular limiting sleeve, a rotating plate, a limiting post, and a telescopic rod. A motor is fixed to the connecting seat. The connecting plate is disposed at one end of the connecting seat, and the other end of the connecting seat is fixed to one side of the baffle. The hollow rotating shaft is fixed to the other side of the baffle. The output end of the motor passes through the hollow rotating shaft. The end of the hollow rotating shaft away from the baffle is connected to the annular limiting sleeve. The inner wall of the annular limiting sleeve is provided with three sets of annular array limiting blocks. A limiting groove is radially formed on each limiting block, and the limiting groove penetrates the outer wall of the annular limiting sleeve. The output end of the motor is connected to the rotating plate. The rotating plate has three sets of annular array eccentric grooves. The limiting post is engaged in the eccentric groove. One end of the telescopic rod is provided with two connecting arms. The limiting post is fixed between the two sets of connecting arms. The other end of the telescopic rod passes through the limiting groove on the limiting block. A bearing seat is sleeved on the outside of the hollow rotating shaft, and the hollow rotating shaft rotates on the bearing seat.

[0009] Optionally, the transmission mechanism includes a dual-axis motor, a lead screw 1, a lead screw 2, a slide bar, two sets of moving blocks, and two sets of fixed blocks. The two output ends of the dual-axis motor are respectively connected to the lead screw 1 and the lead screw 2. The threads on the lead screw 1 and the lead screw 2 are in opposite directions. Each set of moving blocks is provided with a nut sleeve. The lead screw 1 and the lead screw 2 are threadedly engaged with the nut sleeve. Both ends of the lead screw 1 and the lead screw 2 are rotatably connected to the fixed blocks. The two sets of slide bars are arranged on both sides of the lead screw 1 and the lead screw 2. The slide bars pass through the two sets of moving blocks, and both ends of the slide bars are fixed between the fixed blocks. The bearing seat is fixed to the top of the moving blocks.

[0010] Optionally, the rotating mechanism is disposed on the moving block below the first clamping mechanism. The rotating mechanism includes a fixed frame, a second motor, a driving wheel, a driven wheel, and a belt. The fixed frame is disposed on one side of the moving block. The sliding rod passes through the fixed frame. The second motor is fixedly connected to the fixed frame. The output end of the second motor is connected to the driving wheel. The driven wheel is rotatably fixed to the connecting plate. The belt is sleeved between the driving wheel and the driven wheel.

[0011] Optionally, a damping block is provided at the end of the telescopic rod away from the limiting post.

[0012] Optionally, a motor base is fixed to the bottom of the dual-axis motor, and the motor base is flush with the fixing block.

[0013] In summary, this utility model has at least one of the following beneficial technical effects:

[0014] 1. The dual clamping mechanism adopts a reverse linkage design. The transmission mechanism realizes precise synchronous adjustment of the clamping distance. The motor drives the rotating plate to rotate within the annular limiting sleeve. With the mechanical linkage between the eccentric groove of the rotating plate and the telescopic rod, the composite control of axial positioning and radial clamping force can be completed simultaneously. When the rotating plate rotates, the telescopic rod extends and retracts radially within the limiting groove, thereby achieving clamping of the inner wall of the coupling. A damping block is set at the end of the telescopic rod away from the limiting post, which can significantly optimize the dynamic performance and stability of the clamping mechanism.

[0015] 2. The transmission system, which uses a dual-axis motor to drive the first and second reverse threaded lead screws, combined with a sliding rod guide structure, can adjust the distance between the first and second clamping mechanisms and adapt to the positioning of couplings of different sizes.

[0016] 3. Motor 2 can drive the rotation of the first clamping mechanism. When the first clamping mechanism clamps the coupling, it realizes the separation control of the axial positioning and circumferential rotation of the coupling. This structure allows the angular positioning of the coupling to be adjusted in real time during the processing, so as to meet the special requirements of different processing steps for the phase angle of the workpiece. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a positioning device used in coupling processing.

[0018] Figure 2 This is a schematic diagram of the other side of a positioning device used in coupling processing.

[0019] Figure 3 This is a schematic diagram illustrating the first clamping mechanism.

[0020] Figure 4 This is a schematic diagram of the telescopic rod retracting in the first clamping mechanism.

[0021] Figure 5 This is a schematic diagram of the telescopic rod extending outward in the first clamping mechanism.

[0022] Figure 6 This is a schematic diagram used to illustrate the structure of the telescopic pole.

[0023] Explanation of reference numerals in the attached drawings: 1. First clamping mechanism; 110. Motor 1; 120. Connecting seat; 130. Connecting plate; 140. Baffle; 150. Hollow rotating shaft; 160. Clamping assembly; 161. Annular limiting sleeve; 162. Rotating plate; 163. Limiting post; 164. Telescopic rod; 165. Connecting arm; 166. Eccentric groove; 167. Limiting block; 168. Damping block; 2. Second clamping mechanism; 3. Rotating mechanism; 31. Fixed frame; 32. Motor 2; 33. Driving wheel; 34. Driven wheel; 35. Belt; 4. Transmission mechanism; 41. Dual-axis motor; 42. Lead screw 1; 43. Lead screw 2; 44. Slide rod; 45. Two sets of moving blocks; 46. Two sets of fixed blocks; 47. Motor base. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, "several" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] This utility model discloses a positioning device for coupling processing. (Refer to...) Figure 1-6A positioning device for coupling processing includes a first clamping mechanism 1, a second clamping mechanism 2, a rotating mechanism 3, and a transmission mechanism 4. The first clamping assembly 160 and the second clamping assembly 160 have the same structure and are arranged opposite to each other on the transmission mechanism 4. The transmission mechanism 4 drives the first clamping mechanism 1 and the second clamping mechanism 2 to move in opposite directions. The first clamping mechanism 1 includes a motor 110, a connecting seat 120, a connecting plate 130, a baffle 140, a hollow rotating shaft 150, and a clamping assembly 160. The clamping assembly 160 includes an annular limiting sleeve. 161, 162, 163, and 164 are a rotating plate, a limiting post, and a telescopic rod. A motor 110 is fixed to a connecting seat 120. A connecting plate 130 is located at one end of the connecting seat 120, and the other end of the connecting seat 120 is fixed to one side of a baffle 140. A hollow rotating shaft 150 is fixed to the other side of the baffle 140. The output end of the motor 110 passes through the hollow rotating shaft 150. The end of the hollow rotating shaft 150 away from the baffle 140 is connected to an annular limiting sleeve 161. The inner wall of the annular limiting sleeve 161 is provided with three sets of annular array limiting blocks 167 for limiting... A limiting groove is radially formed on block 167, penetrating the outer wall of the annular limiting sleeve 161. The output end of motor 110 is connected to a rotating plate 162, which has three sets of annular array eccentric grooves 166. A limiting post 163 is engaged within the eccentric groove 166. One end of the telescopic rod 164 is provided with two connecting arms 165, and the limiting post 163 is fixed between the two sets of connecting arms 165. The other end of the telescopic rod 164 passes through the limiting groove on the limiting block 167. Through this design, a double clamping mechanism with reverse linkage is adopted for transmission. Mechanism 4 enables precise synchronous adjustment of the clamping distance. Motor 110 drives the rotating plate 162 to rotate within the annular limiting sleeve 161. With the mechanical linkage between the eccentric groove 166 of the rotating plate 162 and the telescopic rod 164, the combined control of axial positioning and radial clamping force can be achieved simultaneously. When the rotating plate 162 rotates, the telescopic rod 164 extends and retracts radially within the limiting groove, thereby clamping the inner wall of the coupling. A damping block 168 is provided at the end of the telescopic rod 164 away from the limiting post 163, which can significantly optimize the dynamic performance and stability of the clamping mechanism.

[0028] The transmission mechanism 4 includes a dual-axis motor 41, lead screw 1 42, lead screw 2 43, slide rod 44, two sets of moving blocks 45, and two sets of fixed blocks 46. The two output ends of the dual-axis motor 41 are respectively connected to lead screw 1 42 and lead screw 2 43. The threads on lead screw 1 42 and lead screw 2 43 are in opposite directions. Nut sleeves are provided on both sets of moving blocks 45. Lead screw 1 42 and lead screw 2 43 are threadedly engaged with the nut sleeves. Both ends of lead screw 1 42 and lead screw 2 43 are rotatably connected to the fixed blocks. The two sets of slide rods 44 are located on both sides of lead screw 1 42 and lead screw 2 43. The slide rods 44 pass through the two sets of moving blocks 45. The two ends of the slide rods 44 are fixed between the fixed blocks. The bearing seats are fixed to the top of the moving blocks. The transmission system driven by the dual-axis motor 41 to drive the reverse-threaded lead screw 1 42 and lead screw 2 43, in conjunction with the guide structure of the slide rods 44, can realize the adjustment of the distance between the first clamping mechanism 1 and the second clamping mechanism 2, and adapt to the positioning of couplings of different sizes.

[0029] The hollow rotating shaft 150 is fitted with a bearing seat on the outside. The hollow rotating shaft 150 rotates on the bearing seat. The rotating mechanism 3 is set on the moving block below the first clamping mechanism 1. The rotating mechanism 3 includes a fixed frame 31, a second motor 32, a driving wheel 33, a driven wheel 34, and a belt 35. The fixed frame 31 is set on one side of the moving block. The slide rod 44 passes through the fixed frame 31. The second motor 32 is fixedly connected to the fixed frame 31. The output end of the second motor 32 is connected to the driving wheel 33. The driven wheel 34 is rotatably fixed to the connecting plate 130. The belt 35 is clamped between the driving wheel 33 and the driven wheel 34. Through this design, the second motor 32 can drive the rotation of the first clamping mechanism 1. When the first clamping mechanism 1 clamps the coupling, the axial positioning and circumferential rotation of the coupling are separated and controlled. This structure allows the angular positioning of the coupling to be adjusted in real time during the processing to meet the special requirements of different processing steps for the phase angle of the workpiece.

[0030] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A positioning device for coupling processing, characterized in that: The device includes a first clamping mechanism (1), a second clamping mechanism (2), a rotating mechanism (3), and a transmission mechanism (4). The first clamping mechanism (1) and the second clamping mechanism (2) have the same structure and are arranged opposite to each other on the transmission mechanism (4). The transmission mechanism (4) drives the first clamping mechanism (1) and the second clamping mechanism (2) to move in opposite directions. The first clamping mechanism (1) includes a motor (110), a connecting seat (120), a connecting plate (130), a baffle (140), a hollow rotating shaft (150), and a clamping assembly (160). The rotating mechanism (3) drives the first clamping mechanism (1) to rotate. The clamping assembly (160) includes an annular limiting sleeve (161), a rotating plate (162), a limiting post (163), and a telescopic rod (164); The transmission mechanism (4) includes a dual-axis motor (41), lead screw one (42), lead screw two (43), slide bar (44), two sets of moving blocks (45) and two sets of fixed blocks (46); The rotating mechanism (3) is mounted on the moving block below the first clamping mechanism (1). The rotating mechanism (3) includes a fixed frame (31), a second motor (32), a driving wheel (33), a driven wheel (34), and a belt (35). The first clamping mechanism (1) includes a motor (110), a connecting seat (120), a connecting plate (130), a baffle (140), a hollow rotating shaft (150), and a clamping assembly (160).

2. The positioning device for coupling processing according to claim 1, characterized in that: The motor (110) is fixed on the connecting seat (120). The connecting plate (130) is disposed at one end of the connecting seat (120), and the other end of the connecting seat (120) is fixed to one side of the baffle (140). The hollow rotating shaft (150) is fixed to the other side of the baffle (140). The output end of the motor (110) passes through the hollow rotating shaft (150). The end of the hollow rotating shaft (150) away from the baffle (140) is connected to the annular limiting sleeve (161). The inner wall of the annular limiting sleeve (161) is provided with three sets of annular array limiting blocks (167). The limiting blocks (167) have radially opened limiting grooves. The limiting groove penetrates the outer wall of the annular limiting sleeve (161). The output end of the motor (110) is connected to the rotating plate (162). The rotating plate (162) has three sets of annular array eccentric grooves (166). The limiting post (163) is engaged in the eccentric groove (166). One end of the telescopic rod (164) is provided with two connecting arms (165). The limiting post (163) is fixed between the two sets of connecting arms (165). The other end of the telescopic rod (164) passes through the limiting groove on the limiting block (167). The hollow rotating shaft (150) is fitted with a bearing seat on the outside. The hollow rotating shaft (150) rotates on the bearing seat.

3. A positioning device for coupling processing according to claim 2, characterized in that: The transmission mechanism (4) includes a dual-axis motor (41), a lead screw (42), a lead screw (43), a slide bar (44), two sets of moving blocks (45), and two sets of fixed blocks (46). The two output ends of the dual-axis motor (41) are respectively connected to the lead screw (42) and the lead screw (43). The threads on the lead screw (42) and the lead screw (43) are opposite in direction. Nut sleeves are provided on both sets of moving blocks. The lead screw (42) and the lead screw (43) are threadedly engaged with the nut sleeves. Both ends of the lead screw (42) and the lead screw (43) are rotatably connected to the fixed blocks. The two sets of slide bars (44) are arranged on both sides of the lead screw (42) and the lead screw (43). The slide bars (44) pass through the two sets of moving blocks. The two ends of the slide bars (44) are fixed between the fixed blocks. The bearing seat is fixed to the top of the moving blocks.

4. A positioning device for coupling processing according to claim 3, characterized in that: The rotating mechanism (3) is located on the moving block below the first clamping mechanism (1). The fixed frame (31) is located on one side of the moving block. The slide rod (44) passes through the fixed frame (31). The second motor (32) is fixed to the fixed frame (31). The output end of the second motor (32) is connected to the driving wheel (33). The driven wheel (34) is rotatably fixed to the connecting plate (130). The belt (35) is sleeved between the driving wheel (33) and the driven wheel (34).

5. A positioning device for coupling processing according to claim 2, characterized in that: A damping block (168) is provided at the end of the telescopic rod (164) away from the limiting post (163).

6. A positioning device for coupling processing according to claim 3, characterized in that: The bottom of the dual-axis motor (41) is fixedly connected to a motor base (47), which is flush with the fixing block.

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