A machine tool clamp adjustable positioner

Abstract

The utility model belongs to the technical field of industrial processing, and relates to a machining clamp adjustable positioner, including the axle seat, the axle seat one end is fixed with the axle disc, the rotary cooperation has the carousel on the axle disc, and the carousel is protruding and is provided with the guide rail of integrated molding, the sliding fit has the slide on the guide rail, the horizontal tooth surface rolling groove is provided with in the slide one side. The utility model can be through the slide of movable setting to be used as the clamp fixed platform module, its clamp end passes through the axial deflection angle of the slide, and the guide rail along the horizontal sliding is set, to facilitate the position transformation and positioning of the slide through the internal drive structure during positioning adjustment, cooperate the deflection angle change of its sensor to feedback its angle information in real time, provide the basis for the positioning position of the clamp, and the positioner structure can complete the position adjustment of the slide through the independent switching shaft body, improve the positioning accuracy and adaptability of the positioner.

Description

Technical Field

[0001] This utility model belongs to the field of industrial processing technology and relates to an adjustable positioner for machining fixtures. Background Technology

[0002] In machining, fixture positioning is the precise and stable determination of the workpiece's spatial position and orientation on the fixture or machine tool. It mainly relies on the contact and engagement of reasonably arranged positioning elements (such as locating pins, locating blocks, V-blocks, and planar supports) with specific reference surfaces of the workpiece to restrict the workpiece's degrees of freedom and prevent its movement and rotation. Accurate and reliable positioning is a key prerequisite for ensuring that the dimensions, shape, and positional accuracy of the machined parts meet the design requirements. It enables the workpiece to maintain a definite positional relationship in each clamping and throughout the entire machining process, thereby ensuring the consistency and repeatability of the machining.

[0003] Existing fixtures are usually fixed assembly platforms. For fixtures that fix workpieces such as rings, the positioning structure needs to be adjusted at multiple angles. After clamping, releasing, adjusting and repositioning, there is an accumulation of certain offset angle tolerances. This makes it difficult to meet the high-precision clamping accuracy of the workpiece during continuous processing. The position calibration during the process affects the actual processing efficiency. Utility Model Content

[0004] (I) Purpose of the utility model

[0005] The purpose of this invention is to provide an adjustable positioner for machining fixtures, which solves the problem that existing fixture positioning methods for machining ring-shaped workpieces are relatively traditional and cannot guarantee the positioning requirements for workpiece adjustment during continuous machining.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, this utility model provides an adjustable positioning device for machining fixtures, which includes: a shaft seat 1, a shaft disk 2 fixed at one end of the shaft seat 1, a turntable 7 rotatably fitted on the shaft disk 2, and an integrally formed guide rail 8 protruding from the turntable 7, a slide seat 5 slidably fitted on the guide rail 8, a rolling groove with toothed surface horizontally arranged on one side of the slide seat 5, and a docking plate 6 fixed on the other side; integrally formed shaft handles 9 protruding from both sides of the shaft disk 2, an adjusting wheel 4 is provided on one side of the shaft handle 9, and a transmission shaft 16 is rotatably arranged between the adjusting wheel 4 and the shaft handle 9, and the adjusting wheel 4 is in rolling engagement with the rolling groove of the slide seat 5; a gear disk 15 is rotatably arranged in the shaft disk 2, a transmission gear 17 meshing between the gear disk 15 and the transmission shaft 16, a matching gear shaft 13 is axially connected in the gear disk 15, and the gear shaft 13 is in axial sliding engagement with the turntable 7.

[0008] Furthermore, the turntable 7 is provided with an electromagnetic module 14 at the end of the sliding stroke of the gear shaft 13, and the turntable 7 has matching tooth grooves at the sliding docking end of the gear shaft 13. The two ends of the sliding stroke of the gear shaft 13 correspond to the rotation of the turntable 7 and the gear disk 15, respectively.

[0009] Furthermore, the gear shaft 13 brakes the gear disc 15 and the turntable 7 in a way that separates them from each other. The axial position of the gear shaft 13 is changed by switching the electromagnetic module 14 on and off. The gear shaft 13 switches between the upper and lower docking positions, that is, it switches between the transmission end of the gear disc 15 and the transmission end of the turntable 7, thereby completing the adjustment control of the corresponding adjusting wheel 4 and the turntable 7.

[0010] Furthermore, an adapter 3 is fixed at one end of the bearing seat 1 relative to the bearing disk 2. The positioner uses the bearing seat 1 as the axial platform end, and the adapter 3 is used for axial docking and fixing on the mounting platform of the fixture. The slide 5 provided on the bearing seat 1 serves as the mounting platform of the fixture and performs positioning and adjustment for clamping the workpiece.

[0011] Furthermore, a motor 11 is fixed in the bearing seat 1, and a machine shaft 12 is provided to drive the motor 11 to the end of the shaft disk 2. The machine shaft 12 and the gear shaft 13 are telescopic structures with axial limiting connection. There is a straight limiting part on the inner side of the telescopic end of the gear shaft 13 and the machine shaft 12 for axial limiting.

[0012] Furthermore, a sensor 10 is fixed on the shaft head 9 on the side opposite to the adjusting wheel 4. The sensor 10 is an angular displacement sensor.

[0013] Furthermore, the transmission end of the sensor 10 is in transmission cooperation with the gear disk 15, and the sensor 10 acquires the rotation angle and number of revolutions of the gear disk 15 in real time, and provides real-time feedback on the deflection displacement information of the slide block 5.

[0014] Furthermore, a tubular guide rail protrudes from the inner end of the turntable 7 at the matching end of the gear shaft 13. Through the tubular guide rail structure that covers the end of the gear shaft 13 and the turntable 7, the axial displacement accuracy of the gear shaft 13 before and after being magnetically attracted and fixed is ensured.

[0015] Furthermore, a compression spring coil is provided at the tooth surface end of the gear shaft 13 along the inner end of the machine shaft 12, and the stretching stroke of the compression spring coil matches the sliding stroke of the gear shaft 13. By providing a matching compression spring coil in the axial position to connect the gear shaft 13 and the machine shaft 12, the gear shaft 13 can be elastically reset by means of the compression spring coil when the gear shaft 13 self-realigns, which is suitable for the reset of the gear shaft 13 in a non-horizontal axial installation position.

[0016] Furthermore, the docking plate 6 on the slide 5 is docked and fixed with the bolt hole of the fixture structure, and the adapter head 3 at the bottom of the bearing 1 is docked and fixed with the processing platform; the horizontal position of the slide 5 is driven by the gear shaft 13 to rotate the gear disk 15, and the braking of the gear shaft 13 is completed by the motor 11; the angular position of the slide 5 is achieved by the gear shaft 13 driving the turntable 7 to rotate; the angular and horizontal displacements of the slide 5 are switched independently and realized.

[0017] (III) Beneficial Effects

[0018] The adjustable positioner for machining fixtures provided by the above technical solution can use a movable slide as a fixture fixing platform module. The fixture end can be rotated axially by the slide and slide along the horizontal guide rail, so that the position of the slide can be changed and positioned by the internal drive structure during positioning adjustment. The angle information is fed back in real time by the deflection angle change of the sensor, which provides a basis for the positioning position of the fixture. Moreover, the positioner structure can complete the position adjustment of the slide by independently switching the shaft, which improves the positioning accuracy and adaptability of the positioner. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the shaft disk structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal planar structure of the shaft disk of this utility model;

[0022] Figure 4 This is a schematic diagram of the planar structure of the gear shaft of this utility model.

[0023] Figures 1-4 In the middle: 1. Shaft seat, 2. Shaft disc, 3. Adapter head, 4. Adjusting wheel, 5. Slide seat, 6. Connecting plate, 7. Turntable, 8. Guide rail, 9. Shaft handle head, 10. Sensor, 11. Motor shaft, 12. Gear shaft, 13. Electromagnetic module, 14. Gear disc, 15. Drive shaft, 16. Drive gear, 17. Detailed Implementation

[0024] To make the objectives, contents, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0025] Reference Figures 1 to 4 As shown, the adjustable positioner of the machining fixture in this embodiment includes a shaft seat 1, a shaft disk 2 is fixed at one end of the shaft seat 1, a turntable 7 is rotatably fitted on the shaft disk 2, and an integrally formed guide rail 8 is protruding on the turntable 7. A slide seat 5 is slidably fitted on the guide rail 8. A rolling groove with a toothed surface is horizontally provided on one side of the slide seat 5, and a docking plate 6 is fixed on the other side.

[0026] The shaft disc 2 has integrally formed shaft head 9 protruding on both sides. One side of the shaft head 9 is provided with an adjusting wheel 4, and a transmission shaft 16 is rotatably connected between the adjusting wheel 4 and the shaft head 9. The adjusting wheel 4 is in rolling engagement with the rolling groove of the slide block 5.

[0027] A geared disc 15 is rotatably mounted in the shaft disc 2. A transmission gear 17 meshes with the transmission shaft 16. A matching gear shaft 13 is axially connected in the geared disc 15. The gear shaft 13 is axially slidingly fitted with the turntable 7. An electromagnetic module 14 is mounted on the end of the sliding stroke of the gear shaft 13 on the turntable 7. The turntable 7 has a matching tooth groove at the sliding end of the gear shaft 13. The two ends of the sliding stroke of the gear shaft 13 correspond to the rotation of the turntable 7 and the geared disc 15, respectively.

[0028] In this embodiment, the adjustable positioner uses the docking plate 6 on the slide 5 as the platform module of the clamping structure. The clamping installation method is based on bolt hole docking. The horizontal position of the slide 5 can be controlled by the drive structure set in the shaft disk 2. Specifically, the gear shaft 13 drives the gear disk 15 to rotate, and the gear disk 15, the transmission gear 17 and the shaft head 9 drive the adjusting wheel 4 set on one side of the shaft disk 2 to rotate. The rolling engagement between the adjusting wheel 4 and the rolling groove of the slide 5 causes the slide 5 to make a horizontal displacement of equal rotation angles along the internal guide rail 8. At the same time, the rotation angle position of the slide 5 can be achieved by the gear shaft 13 driving the turntable 7 to rotate. After the gear shaft 13 rotates, the turntable 7 adjusts the angle of the guide rail 8 set on it along the shaft disk 2, thereby causing the slide 5 to make a synchronous rotation angle displacement. At each angle, the adjusting wheel 4 always maintains docking with the rolling groove of the slide 5 to meet the positioning adjustment requirements of the clamping structure at each angle.

[0029] Meanwhile, the gear shaft 13 brakes the gear disc 15 and the turntable 7 in a way that separates them from each other. The axial position of the gear shaft 13 is mainly changed by the on and off of the electromagnetic module 14, so that the gear shaft 13 can switch between the upper and lower docking positions, that is, switch between the transmission end of the gear disc 15 and the transmission end of the turntable 7, and complete the adjustment control of the corresponding adjustment wheel 4 and the turntable 7.

[0030] Specifically, the bearing seat 1 has an adapter head 3 fixed at one end relative to the bearing disk 2. The positioner mainly uses the bearing seat 1 as the axial platform end, and the adapter head 3 is used for axial docking and fixing on the mounting platform of the fixture. The slide 5 on the bearing seat 1 serves as the mounting platform of the fixture, thus meeting the positioning and adjustment requirements of workpiece clamping.

[0031] Furthermore, a motor 11 is fixed in the bearing seat 1, and a machine shaft 12 is provided to drive the motor 11 to the end of the shaft disk 2. The machine shaft 12 and the gear shaft 13 are axially limited and connected telescopic structures. There is a slotted limiting part on the inner side of the telescopic end of the gear shaft 13 and the machine shaft 12 for axial limitation. Figure 3 , Figure 4 As shown, the braking of the gear shaft 13 is mainly accomplished by the motor 11. The gear shaft 13 is driven by the machine shaft 12 to make axial rotation angle changes. On this basis, the vertical displacement of the gear shaft 13 is achieved through the telescopic sliding end with the machine shaft 12. Furthermore, the inner end of the straight-line limiting part is used to ensure that the rotation of its axial sliding structure is not affected.

[0032] Furthermore, a sensor 10 is fixed on the shaft head 9 on one side of the adjusting wheel 4. The sensor 10 is an angular displacement sensor, and the transmission end of the sensor 10 is in transmission cooperation with the gear disk 15. The sensor 10 can obtain the rotation angle and number of revolutions of the gear disk 15 in real time, so as to indirectly obtain the rotation angle of the adjusting wheel 4 at the corresponding number of revolutions. Since the rolling matching position of the adjusting wheel 4 and the rolling groove of the slide 5 is positively correlated, that is, the horizontal displacement of the slide 5 along the guide rail 8 is positively correlated at the corresponding number of revolutions of the gear disk 15. That is, during adjustment, the sensor 10 can provide real-time feedback on the deflection displacement information of the slide 5, providing data support for the positioning control of the fixture.

[0033] The inner end of the turntable 7 protrudes at the matching end of the gear shaft 13 to form a tubular guide rail. The tubular guide rail structure that covers the end of the gear shaft 13 and the turntable 7 ensures the axial displacement accuracy of the gear shaft 13 before and after being magnetically attracted and fixed, and ensures the positioning accuracy of the gear shaft 13 when switching transmission positions.

[0034] A spring coil is provided at the tooth surface end of the gear shaft 13 along the inner end of the machine shaft 12, and the stretching stroke of the spring coil matches the sliding stroke of the gear shaft 13. The gear shaft 13 and the machine shaft 12 are connected by a matching spring coil in the axial position, so that the gear shaft 13 can be elastically reset by means of the spring coil when the gear shaft 13 self-realigns, so as to adapt to the reset of the gear shaft 13 in the non-horizontal axial installation position.

[0035] The working principle of the adjustable positioner in this embodiment is described as follows:

[0036] The slide block 5 is fixed to the fixture structure by docking with the docking plate 6, and the shaft seat 1 is fixed to the machining platform by docking with the adapter head 3 at the bottom.

[0037] During the processing, the horizontal position of the slide 5 can be driven by the gear shaft 13 to rotate the gear disk 15. The braking of the gear shaft 13 is mainly accomplished by the motor 11. The gear shaft 13 is driven by the machine shaft 12 to make axial rotation angle changes. By utilizing the driven of the gear disk 15, the transmission gear 17 and the shaft head 9, the adjusting wheel 4 set on one side of the shaft disk 2 is rotated. By utilizing the rolling cooperation between the adjusting wheel 4 and the rolling groove of the slide 5, the slide 5 is made to make a horizontal displacement of equal rotation angles along the internal guide rail 8. At the same time, the rotation angle and rotation number of the gear disk 15 can be obtained in real time by the sensor 10, so as to indirectly obtain the rotation angle of the adjusting wheel 4 at the corresponding number of rotations.

[0038] The angular position of the slide 5 can be achieved by the gear shaft 13 driving the turntable 7 to rotate. After the gear shaft 13 rotates, the turntable 7 adjusts the angle of the guide rail 8 set on it along the shaft disk 2, which causes the slide 5 to make a synchronous angular displacement. At each angle, the adjusting wheel 4 always maintains docking with the rolling groove of the slide 5 to meet the positioning adjustment requirements of the fixture structure at each angle.

[0039] The rotation angle and horizontal displacement of the slide block 5 are switched and realized independently. This is mainly achieved by changing the axial position of the gear shaft 13 between the upper and lower turntables 7 and the gear disk 15 through the on and off of the electromagnetic module 14. This allows the gear shaft 13 to switch between the upper and lower docking positions, that is, to switch between the transmission end of the gear disk 15 and the transmission end of the turntable 7, thereby completing the adjustment control of the corresponding adjustment wheel 4 and the turntable 7.

[0040] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A machine tool fixture adjustable positioner, characterized by, include: A bearing seat (1) has a bearing disk (2) fixed at one end. A turntable (7) is rotatably fitted on the bearing disk (2), and an integrally formed guide rail (8) is protruding from the turntable (7). A slide seat (5) is slidably fitted on the guide rail (8). A rolling groove with a toothed surface is horizontally provided on one side of the slide seat (5), and a mating plate (6) is fixed on the other side. Integrally formed shaft handles (9) are protruding from both sides of the bearing disk (2), and one side of the shaft handle (9) is provided with a... There is an adjusting wheel (4), and a drive shaft (16) is rotatably arranged between the adjusting wheel (4) and the shaft head (9). The adjusting wheel (4) and the sliding seat (5) are in rolling engagement. A gear disk (15) is rotatably arranged in the shaft disk (2). A drive gear (17) is meshed between the gear disk (15) and the drive shaft (16). A matching gear shaft (13) is axially connected in the gear disk (15). The gear shaft (13) and the turntable (7) are in axial sliding engagement.

2. The machine tool clamp adjustable positioner of claim 1 wherein, The turntable (7) is provided with an electromagnetic module (14) at the end of the sliding stroke of the gear shaft (13). The turntable (7) has matching tooth grooves at the sliding docking end of the gear shaft (13). The two ends of the sliding stroke of the gear shaft (13) correspond to the rotation of the turntable (7) and the gear disk (15), respectively.

3. The adjustable positioning device for machining fixtures as described in claim 2, characterized in that, The gear shaft (13) brakes the gear disc (15) and the turntable (7) in a way that separates them from each other. The axial position of the gear shaft (13) is changed by switching the electromagnetic module (14) on and off. The gear shaft (13) switches between the upper and lower docking positions, that is, it switches between the transmission end of the gear disc (15) and the transmission end of the turntable (7), thereby completing the adjustment control of the corresponding adjustment wheel (4) and the turntable (7).

4. The adjustable positioning device for machining fixtures as described in claim 3, characterized in that, The bearing seat (1) is fixed with an adapter head (3) at one end relative to the bearing disk (2). The locator uses the bearing seat (1) as the axial platform end. The adapter head (3) is used to axially connect and fix on the mounting platform of the fixture. The slide (5) set on the bearing seat (1) serves as the mounting platform of the fixture and performs positioning adjustment for clamping the workpiece.

5. The adjustable positioner for machining fixtures as described in claim 4, characterized in that, A motor (11) is fixed in the bearing seat (1). The motor (11) drives the machine shaft (12) to the end of the shaft disc (2). The machine shaft (12) and the gear shaft (13) are telescopic structures with axial limiting connection. The inner side of the telescopic end of the gear shaft (13) and the machine shaft (12) has a straight-line limiting part for axial limiting.

6. The adjustable positioner for machining fixtures as described in claim 5, characterized in that, A sensor (10) is fixed on the shaft head (9) on the side opposite to the adjusting wheel (4). The sensor (10) is an angular displacement sensor.

7. The adjustable positioning device for machining fixtures as described in claim 6, characterized in that, The transmission end of the sensor (10) is driven by the gear disk (15). The sensor (10) obtains the rotation angle and number of revolutions of the gear disk (15) in real time and provides real-time feedback on the deflection displacement of the slide (5).

8. The adjustable positioning device for machining fixtures as described in claim 7, characterized in that, The inner end of the turntable (7) protrudes from the matching end of the gear shaft (13) to form a tubular guide rail. Through the tubular guide rail structure that covers the end of the gear shaft (13) and the turntable (7), the axial displacement accuracy of the gear shaft (13) before and after being magnetically fixed is ensured.

9. The adjustable positioning device for machining fixtures as described in claim 8, characterized in that, A spring coil is provided at the tooth surface end of the gear shaft (13) along the inner end of the machine shaft (12), and the stretching stroke of the spring coil matches the sliding stroke of the gear shaft (13). By setting a matching spring coil in the axial position to connect the gear shaft (13) and the machine shaft (12), the gear shaft (13) is elastically reset by means of the spring coil when the gear shaft (13) self-realigns, which is suitable for the reset of the gear shaft (13) in the non-horizontal axial installation position.

10. The adjustable positioner for machining fixtures as described in claim 9, characterized in that, The docking plate (6) on the slide (5) is fixed to the bolt hole of the fixture structure, and the adapter head (3) at the bottom of the bearing (1) is fixed to the machining platform; the horizontal position of the slide (5) is driven to rotate the gear plate (15) by the gear shaft (13), and the braking of the gear shaft (13) is completed by the motor (11); the angular position of the slide (5) is achieved by the gear shaft (13) driving the turntable (7) to rotate; the angular and horizontal displacements of the slide (5) are switched independently and realized.

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