Flexible modular fixture for shaft sleeve parts

Abstract

The application discloses a flexible combined clamp for a shaft sleeve part, which is suitable for installing a mandrel clamp, the mandrel clamp is suitable for axially nesting and fixing a workpiece, and comprises a fixing base, wherein a rotary clamp is arranged on the fixing base, at least one end of the mandrel clamp protrudes from the workpiece along an axial direction to form a cylinder, the rotary clamp is suitable for circumferentially clamping the cylinder, and the rotary clamp comprises a first clamping piece and a second clamping piece, the first clamping piece and the second clamping piece are symmetrically arranged along an axis of the rotary clamp, and the first clamping piece and the second clamping piece are suitable for synchronously approaching or moving away from the axis of the rotary clamp. The application has the characteristics of strong installation adaptability and convenient machining, and can quickly switch and install the lathe mandrel clamp on the milling machine clamp for machining and detection.

Description

Technical Field

[0001] This application relates to the field of clamping equipment technology, and specifically to a flexible combination clamp for bushing parts. Background Technology

[0002] Milling machine fixtures are specialized process equipment used in machining to fix workpieces on milling machines. Their core function is to ensure that the workpiece maintains a precise and stable position relative to the machine tool and cutting tool during machining. Their value lies in consistently ensuring machining accuracy, significantly improving production efficiency, expanding the machine tool's process range, and reducing dependence on the operator's skill level.

[0003] However, existing milling machine fixtures have the following drawbacks: Currently, milling machine fixtures are generally designed according to the structure of the corresponding workpiece and are mainly used to fix the workpiece itself. Their versatility is low, and the entire fixture needs to be redesigned when the workpiece is replaced. Summary of the Invention

[0004] One object of this application is to provide a flexible combination fixture for bushing parts with high installation adaptability.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a flexible combination fixture for bushing parts, suitable for mounting a mandrel fixture, the mandrel fixture being suitable for axially nested and fixed workpieces, including a fixed base, a rotating fixture being provided on the fixed base, at least one end of the mandrel fixture protruding axially from the workpiece to form a cylinder, the rotating fixture being suitable for circumferentially clamping the cylinder, the rotating fixture including a first clamping member and a second clamping member, the first clamping member and the second clamping member being symmetrically arranged along the axis of the rotating fixture, the first clamping member and the second clamping member being suitable for synchronously approaching or moving away from the axis of the rotating fixture.

[0006] In some embodiments, the fixed base has a plurality of positioning holes along the circumference of the rotating clamp, and the rotating clamp is provided with an elastic pin. The elastic pin is adapted to elastically return to its original position and extend towards the positioning hole. The elastic pin is adapted to extend into different positioning holes so that the rotating clamp can be rotated and positioned.

[0007] In some embodiments, the resilient pin includes a threaded sleeve, a pin member, and a resilient resetter. The threaded sleeve is disposed on the rotary fixture, and the resilient resetter is disposed inside the threaded sleeve. The end of the pin member away from the positioning hole is bent outward to form a limiting portion, which is adapted to restrict the pin member from disengaging from the threaded sleeve in the direction of the positioning hole. A limiting groove is formed at the end of the threaded sleeve away from the positioning hole, which is adapted to accommodate the limiting portion to restrict the limiting portion from rotating circumferentially along the threaded sleeve. The limiting groove is located on the side of the threaded sleeve away from the axis of the rotary fixture.

[0008] In some embodiments, a drive gear or drive shaft is coaxially connected to the rotating fixture on the fixed base, and a rotary drive device is provided on the fixed base and connected to the drive gear or drive shaft. The rotary drive device is adapted to drive the drive gear or drive shaft to rotate the rotating fixture.

[0009] In some embodiments, at least one bidirectional screw is provided between the first clamping member and the second clamping member, the two ends of the bidirectional screw being connected to the first clamping member and the second clamping member respectively, and the bidirectional screw being adapted to move the first clamping member and the second clamping member closer or further apart when rotated.

[0010] In some embodiments, the rotary fixture is provided with a clamping drive device, which is connected to the bidirectional screw and is adapted to drive the bidirectional screw to rotate; the rotary fixture includes a rotary seat, and guide rails are provided between the rotary seat and the first clamping member and between the rotary seat and the second clamping member, the guide rails being adapted to cooperate in guiding the movement of the corresponding first clamping member and / or the second clamping member.

[0011] In some embodiments, the first clamping member and the second clamping member are provided with clamping grooves, the depth direction of the clamping groove is the axial direction of the rotating fixture, and the opening of the clamping groove faces the axial center of the rotating fixture; the clamping groove is a V-groove.

[0012] In some embodiments, the fixed base is provided with a movable base, which is adapted to move along the axial direction of the rotary clamp and engage with the other end of the mandrel clamp. The movable base is provided with a push rod portion, the top of which has a conical structure and is arranged along the axial direction of the rotary clamp.

[0013] In some embodiments, the fixed base is provided with an eccentric clamping mechanism, which includes a first clamp, a second clamp, and an eccentric handle. The first clamp and the second clamp are slidably disposed on the fixed base, and the eccentric handle is eccentrically rotatably disposed on the fixed base. The circumferential side of the eccentric handle abuts against the first clamp, and the eccentric handle is adapted to rotate so that the first clamp moves closer to the second clamp.

[0014] In some embodiments, the mandrel clamp includes a shaft, a washer, and a fastener. One end of the shaft is cylindrical, and the other end is a connecting end. The workpiece is adapted to be fitted onto the connecting end. The washer and the fastener are adapted to be sequentially fitted onto the connecting end from the outside of the workpiece. The fastener is adapted to engage with the washer to prevent the washer from detaching from the connecting end. The inner diameter of the workpiece at the connecting end is smaller than the outer diameter of the washer. A fixing portion is provided axially on the connecting end. The fixing portion is adapted to engage with the inner and outer ends of the workpiece axially. The workpiece forms a fitting gap with the shaft between the two fixing portions. The outer diameter of the washer is larger than the outer diameter of the fixing portion at the outer end of the workpiece.

[0015] Compared with the prior art, the beneficial effects of this application are as follows:

[0016] 1. The fixture of this application achieves the clamping of different types of workpieces by adapting to common lathe mandrel fixtures with strong universality. Since the common structure of different lathe mandrel fixtures is highly similar, the difficulty of adapting to the lathe mandrel fixture is lower than that of adapting to the workpiece, and there is no need to design an overly complex structure. This can effectively reduce the design difficulty and production cost of the equipment, while also improving the processing efficiency. The workpiece can be milled without being removed from the mandrel fixture.

[0017] 2. The fixture of this application, through the design of a rotary fixture, can achieve rotational positioning at different angles, thereby facilitating operations such as drilling and milling on the workpiece. At the same time, by using the rotary fixture in conjunction with external equipment, the concentricity of the workpiece can be quickly detected. If necessary, the rotary fixture can also be designed to be electrified to achieve automatic clamping and rotation control, further facilitating operation.

[0018] 3. The fixture in this application has a simple and compact structure and an intuitive principle, and can be adapted to a variety of processing and testing scenarios. Therefore, it can be used as a teaching tool for demonstration, which helps trainees to understand the relevant operations and steps of processing and testing more easily. Attached Figure Description

[0019] Figure 1 This is an overall structural view according to a preferred embodiment of the present application.

[0020] Figure 2 This is a structural view of a rotary clamp according to a preferred embodiment of the present application.

[0021] Figure 3 This is a side view of a rotary clamp according to a preferred embodiment of the present application.

[0022] Figure 4 This is a preferred embodiment according to this application. Figure 3 A cross-sectional view along the AA direction.

[0023] Figure 5 This is a schematic diagram of a rotating clamp driven by a motor according to a preferred embodiment of the present application.

[0024] Figure 6 This is a schematic diagram of the structure of the first clamping member and the second clamping member driven by a motor according to a preferred embodiment of this application.

[0025] Figure 7 This is a structural view of an eccentric clamping mechanism according to a preferred embodiment of the present application.

[0026] Figure 8 This is an overall structural view of a mandrel clamp according to a preferred embodiment of this application.

[0027] Figure 9 This is an internal structural view of a mandrel clamp according to a preferred embodiment of this application.

[0028] In the diagram: 1. Mandrel clamp; 11. Shaft body; 111. Cylinder; 112. Connecting end; 1121. Fixing part; 12. Washer; 13. Fastener; 2. Workpiece; 3. Fixing seat; 31. Positioning hole; 4. Rotary clamp; 41. First clamping element; 42. Second clamping element; 43. Elastic pin; 431. Threaded sleeve; 4311. Limiting groove; 432. Pin; 4321. Limiting part; 44. Bidirectional screw; 441. Operating end; 45. Rotary seat; 46. Guide rail; 47. Clamping groove; 5. Rotary drive device; 6. Clamping drive device; 7. Movable seat; 71. Top rod part; 8. Eccentric clamping mechanism; 81. First clamp; 82. Second clamp; 83. Eccentric handle. Detailed Implementation

[0029] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0030] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0031] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0032] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0033] The following description, in conjunction with the accompanying drawings, further illustrates this application:

[0034] like Figures 1 to 9 As shown, this application provides a flexible combination fixture for bushing parts, suitable for mounting a mandrel fixture 1. The mandrel fixture 1 is suitable for axially nesting and fixing a workpiece 2, including a fixed seat 3. A rotating fixture 4 is provided on the fixed seat 3. At least one end of the mandrel fixture 1 protrudes axially from the workpiece 2 to form a cylinder 111. The rotating fixture 4 is suitable for circumferentially clamping the cylinder 111.

[0035] It is understood that the mandrel fixture 1 mentioned in this application is used to realize the rotational machining of the bushing-type workpiece 2. Therefore, it usually has a structure that is approximately cylindrical 111. The rotary fixture 4 of this application discovers the general structure of the mandrel fixture 1 through in-depth research and exploration. Then, the structure of the rotary fixture 4 is designed to adapt and fix the general structure of the mandrel fixture 1, so as to indirectly realize the fixation of the workpiece 2 set on the mandrel fixture 1. This not only improves the versatility of the equipment, but also saves operation steps and achieves higher processing efficiency because the workpiece 2 does not need to be removed from the mandrel fixture 1 and reinstalled.

[0036] Specifically, the rotary fixture 4 includes a first clamping member 41 and a second clamping member 42. The first clamping member 41 and the second clamping member 42 are arranged symmetrically along the axis of the rotary fixture 4. The first clamping member 41 and the second clamping member 42 are adapted to move closer to or further away from the axis of the rotary fixture 4 at the same time. When the first clamping member 41 and the second clamping member 42 are close together, they can clamp and fasten the cylindrical part 111 of the mandrel fixture 1. By aligning the axis of the mandrel fixture 1 with the axis of the rotary fixture 4, subsequent high-precision processing and inspection can be achieved.

[0037] In this application, as Figure 8 and 9As shown, the mandrel clamp 1 generally includes a shaft 11, a washer 12, and a fastener 13. One end of the shaft 11 is a cylinder 111, and the other end is a connecting end 112. The workpiece 2 is adapted to be fitted onto the connecting end 112. The washer 12 and the fastener 13 are adapted to be fitted onto the connecting end 112 in sequence on the outside of the workpiece 2. The washer 12 is adapted to be located between the workpiece 2 and the fastener 13. The fastener 13 is adapted to engage with the washer 12 to prevent the washer 12 from detaching from the connecting end 112. The combination of the washer 12 and the fastener 13 can improve the stability of the fastening of the workpiece 2, reduce the probability of the fastener 13 loosening, and reduce the wear that may be caused to the workpiece 2 when the fastener 13 is installed. The inner diameter x of the workpiece 2 at the connecting end 112 is smaller than the outer diameter y of the washer 12, ensuring that the workpiece 2 can be blocked and restricted by the washer 12.

[0038] like Figure 9 As shown, considering the fit stability between workpiece 2 and shaft 11, and the machinability of workpiece 2 on shaft 11, a fixing part 1121 is provided on the connecting end 112 along the axial direction. The fixing part 1121 is suitable for engaging with the inner and outer ends of workpiece 2 in the axial direction, thereby reducing the shaking between the two ends of workpiece 2 and shaft 11 and improving stability. Then, the outer diameter y of washer 12 is set to be greater than the outer diameter z of fixing part 1121 at the outer end of workpiece 2, ensuring that washer 12 can effectively block and restrict workpiece 2. It can be understood that a fit clearance will be generated between workpiece 2 and shaft 11 in the part between the two fixing parts 1121. Through this fit clearance, drilling, milling and other operations of workpiece 2 can be realized, thereby avoiding damage to shaft 11.

[0039] like Figure 9 In the embodiment shown, the fastener 13 is a threaded fastener such as a bolt, and the outer side of the connecting end 112 is provided with threads. The fastener 13 can be threadedly connected to the connecting end 112 to achieve fastening of the workpiece 2 and the washer 12.

[0040] like Figure 2 In the embodiment shown, the fixed base 3 has multiple positioning holes 31 along the circumference of the rotating clamp 4. The rotating clamp 4 is provided with an elastic pin 43. The elastic pin 43 is adapted to elastically return and extend in the direction of the positioning hole 31. The elastic pin 43 is adapted to extend into different positioning holes 31 so that the rotating clamp 4 can rotate and be positioned. The elastic pin 43 has a simple structure and is easy to operate. Just pull the elastic pin 43 out of the positioning hole 31 and then rotate the rotating clamp 4. The elastic pin 43 can be automatically inserted into the next adjacent positioning hole 31 to achieve automatic positioning. Alternatively, the elastic pin 43 can be continuously controlled so that the rotating clamp 4 rotates through multiple positioning holes 31 and then is released to achieve large-angle rotation positioning.

[0041] The positioning holes 31 can be evenly distributed along the circumference of the rotary fixture 4 at an angle of 90 degrees or less, thereby realizing multi-angle rotation positioning of the rotary fixture 4. It can be understood that the more positioning holes 31 there are and the smaller the distribution angle, the more precise the rotation positioning of the rotary fixture 4 will be.

[0042] like Figure 2 and 4 In the embodiment shown, the direction of movement of the elastic pin 43 and the depth direction of the positioning hole 31 are both parallel to the axis of the rotating clamp 4, which facilitates the engagement between the elastic pin 43 and the positioning hole 31 and improves the stability after engagement.

[0043] like Figures 1 to 4 In the illustrated embodiment, the elastic pin 43 includes a threaded sleeve 431, a pin 432, and an elastic resetter. The threaded sleeve 431 is disposed on the rotary clamp 4, and the threaded sleeve 431 and the rotary clamp 4 are threadedly connected. The elastic resetter is disposed inside the threaded sleeve 431. The elastic resetter is adapted to push the pin 432 to extend toward the positioning hole 31. The end of the pin 432 away from the positioning hole 31 is bent outward to form a limiting part 4321. The limiting part 4321 is adapted to restrict the pin 432 from disengaging from the threaded sleeve 431 toward the positioning hole 31. The elastic resetter and the pin 432 with the limiting part 4321 cooperate to realize the stable reset of the elastic pin 43 to the extended state, thereby ensuring the cooperation with the positioning hole 31.

[0044] In some embodiments, the elastic reset element is a spring.

[0045] like Figure 4 In the embodiment shown, a limiting groove 4311 is provided at the end of the threaded sleeve 431 away from the positioning hole 31. The limiting groove 4311 is suitable for accommodating the limiting part 4321 to restrict the limiting part 4321 from rotating circumferentially along the threaded sleeve 431. The limiting groove 4311 plays a role in stabilizing the state of the limiting part 4321 and preventing the limiting part 4321 from rotating arbitrarily and affecting the processing.

[0046] like Figure 4 In the embodiment shown, the limiting groove 4311 is located on the side of the threaded sleeve 431 away from the axis of the rotating fixture 4, so that the limiting part 4321 can always face the opposite direction of the processing side, thereby ensuring the stability of the processing.

[0047] like Figure 5In the embodiment shown, a drive gear or drive shaft is coaxially connected to the rotating clamp 4 on the fixed base 3. A rotary drive device 5 connected to the drive gear or drive shaft is provided on the fixed base 3. The rotary drive device 5 preferably uses a motor. The rotary drive device 5 is suitable for driving the drive gear or drive shaft to rotate the rotating clamp 4. By electrifying the drive of the rotating clamp 4, higher precision and stability of rotation and positioning can be achieved.

[0048] It is understandable that the rotary fixture 4 can achieve continuous rotation at a certain speed through the rotary drive device 5, and in this way, with the help of external equipment, parameters such as the concentricity of the workpiece 2 can be detected.

[0049] like Figure 4 and 6 In the embodiment shown, at least one bidirectional screw 44 is provided between the first clamping member 41 and the second clamping member 42. The two ends of the bidirectional screw 44 are respectively provided with threads in different rotation directions and are respectively connected to the first clamping member 41 and the second clamping member 42. When the bidirectional screw 44 rotates, it is suitable to make the first clamping member 41 and the second clamping member 42 move closer or further away. The bidirectional screw 44 structure can improve the structural compactness and the synchronization accuracy between the first clamping member 41 and the second clamping member 42.

[0050] like Figure 4 and 6 In the embodiment shown, a bidirectional screw 44 and a guide rod are provided between the first clamping member 41 and the second clamping member 42. The bidirectional screw 44 is used to drive the first clamping member 41 and the second clamping member 42, and the guide rod is used to improve the stability of the relative movement of the first clamping member 41 and the second clamping member 42.

[0051] like Figure 2 In the embodiment shown, one end (preferably the exposed end) of the bidirectional screw 44 is set as the operating end 441. The operating end 441 can be turned and rotated by tools such as wrenches to drive the first clamping member 41 and the second clamping member 42 to move.

[0052] In some embodiments, the rotary clamp 4 is provided with a clamping drive device 6, which preferably uses a motor. The clamping drive device 6 is connected to a bidirectional screw 44 and is adapted to drive the bidirectional screw 44 to rotate so that the first clamping member 41 and the second clamping member 42 can move. By electrifying the clamping operation of the rotary clamp 4, clamping with higher precision and stability can be achieved.

[0053] like Figures 2 to 6In the embodiment shown, the rotary clamp 4 includes a rotary seat 45, and a guide rail 46 is provided between the rotary seat 45 and the first clamping member 41 and between the rotary seat 45 and the second clamping member 42. The guide rail 46 is adapted to guide the movement of the corresponding first clamping member 41 and / or second clamping member 42 to improve the stability of the movement of the first clamping member 41 and the second clamping member 42.

[0054] In some embodiments, the fixed base 3 is provided with a threaded ferrule connecting and clamping the rotating base 45, and the threaded ferrule is provided with two bearings to facilitate rotation between the fixed base 3 and the rotating base 45.

[0055] like Figure 2 , 4 In the embodiments shown in Figure 6, the first clamping member 41 and the second clamping member 42 are provided with clamping grooves 47. The depth direction of the clamping grooves 47 is the axial direction of the rotating clamp 4, and the opening of the clamping grooves 47 faces the axial center of the rotating clamp 4, so as to realize multi-point circumferential clamping of the cylinder 111 of the mandrel clamp 1, thereby effectively improving the clamping stability.

[0056] In some embodiments, the clamping groove 47 is a V-shaped groove, but it can also be other common geometric shapes.

[0057] like Figure 1 In the embodiment shown, a movable seat 7 is provided on the fixed seat 3. The movable seat 7 is adapted to move along the axial direction of the rotary fixture 4 and to abut against the other end of the mandrel fixture 1. A push rod portion 71 is provided on the movable seat 7. The top of the push rod portion 71 has a conical structure to reduce rotational wear between it and the mandrel fixture 1. The push rod portion 71 is arranged along the axial direction of the rotary fixture 4. The movable seat 7 can help stabilize the exposed end of the workpiece 2 on the rotary fixture 4, thereby improving the rotational accuracy of the workpiece 2 to a certain extent.

[0058] like Figure 7 In the embodiment shown, an eccentric clamping mechanism 8 is provided on the fixed base 3. The eccentric clamping mechanism 8 includes a first clamp 81, a second clamp 82, and an eccentric handle 83. The first clamp 81 and the second clamp 82 are slidably disposed on the fixed base 3. Clamping grooves can be provided on the first clamp 81 and the second clamp 82 to improve clamping stability. The eccentric handle 83 is eccentrically rotatably disposed on the fixed base 3, that is, the rotation axis of the eccentric handle 83 is offset from the rotation center of the eccentric handle 83. The circumference of the eccentric handle 83 abuts against the first clamp 81. The eccentric handle 83 is adapted to rotate to push the first clamp 81 closer to the second clamp 82, thereby achieving clamping. It can vertically clamp the workpiece 2, and then vertically process the bushing-type part workpiece 2. The eccentric handle 83 driving structure applies force more effortlessly and conveniently.

[0059] The flexible combination fixture for bushing parts of this application has the advantages of compact structure, simple operation, convenient observation, intuitive principle and adaptability to a variety of processing methods through the above design. Therefore, in addition to being used directly as a fixture for processing, it can also be used as a teaching tool for demonstration, thus realizing a wider range of uses and application prospects.

[0060] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are only the principles of this application. Various changes and modifications can be made to this application without departing from the spirit and scope of this application. All such changes and modifications fall within the scope of this application as claimed. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A flexible combination fixture for bushing parts, suitable for mounting a mandrel fixture, wherein the mandrel fixture is suitable for axial nesting and fixing of the workpiece, characterized in that: The device includes a fixed base, on which a rotating clamp is provided. At least one end of the mandrel clamp protrudes axially from the workpiece to form a cylinder. The rotating clamp is adapted to clamp the cylinder circumferentially. The rotating clamp includes a first clamping member and a second clamping member, which are symmetrically arranged along the axis of the rotating clamp. The first clamping member and the second clamping member are adapted to simultaneously move closer to or away from the axis of the rotating clamp.

2. The flexible combination fixture for bushing parts as described in claim 1, characterized in that: The fixed base has multiple positioning holes along the circumference of the rotating clamp. The rotating clamp is provided with an elastic pin, which is adapted to elastically return to its original position in the direction of the positioning hole. The elastic pin is adapted to extend into different positioning holes so that the rotating clamp can be rotated and positioned.

3. The flexible combination fixture for bushing parts as described in claim 2, characterized in that: The resilient pin includes a threaded sleeve, a pin member, and a resilient resetter. The threaded sleeve is disposed on the rotary fixture, and the resilient resetter is disposed inside the threaded sleeve. The end of the pin member away from the positioning hole is bent outward to form a limiting part, which is adapted to restrict the pin member from disengaging from the threaded sleeve in the direction of the positioning hole. A limiting groove is formed at the end of the threaded sleeve away from the positioning hole, which is adapted to accommodate the limiting part to restrict the limiting part from rotating circumferentially along the threaded sleeve. The limiting groove is located on the side of the threaded sleeve away from the axis of the rotary fixture.

4. The flexible combination fixture for bushing parts as described in claim 1, characterized in that: A drive gear or drive shaft is coaxially connected to the rotating fixture on the fixed base. A rotary drive device is provided on the fixed base and connected to the drive gear or drive shaft. The rotary drive device is adapted to drive the drive gear or drive shaft to make the rotating fixture rotate.

5. The flexible combination fixture for bushing parts as described in claim 1, characterized in that: At least one bidirectional screw is provided between the first clamping member and the second clamping member. The two ends of the bidirectional screw are respectively connected to the first clamping member and the second clamping member. When the bidirectional screw rotates, it is adapted to bring the first clamping member and the second clamping member closer or further apart.

6. The flexible combination fixture for bushing parts as described in claim 5, characterized in that: The rotary fixture is provided with a clamping drive device, which is connected to the bidirectional screw and is adapted to drive the bidirectional screw to rotate. The rotary fixture includes a rotary seat, and guide rails are provided between the rotary seat and the first clamping member and between the rotary seat and the second clamping member. The guide rails are adapted to cooperate in guiding the movement of the corresponding first clamping member and / or the second clamping member.

7. The flexible combination fixture for bushing parts as described in claim 1, characterized in that: The first clamping member and the second clamping member are provided with clamping grooves, the depth direction of the clamping groove is the axis direction of the rotating fixture, and the opening of the clamping groove faces the axis of the rotating fixture; the clamping groove is a V-shaped groove.

8. The flexible combination fixture for bushing parts as described in claim 1, characterized in that: The fixed base is provided with a movable base, which is adapted to move along the axial direction of the rotating fixture and to abut against the other end of the mandrel fixture. The movable base is provided with a push rod, the top of which has a conical structure and is arranged along the axial direction of the rotating fixture.

9. A flexible combination fixture for bushing parts as described in claim 1, characterized in that: An eccentric clamping mechanism is provided on the fixed base. The eccentric clamping mechanism includes a first clamp, a second clamp, and an eccentric handle. The first clamp and the second clamp are slidably disposed on the fixed base. The eccentric handle is eccentrically rotatably disposed on the fixed base. The circumference of the eccentric handle abuts against the first clamp. The eccentric handle is adapted to rotate so that the first clamp moves closer to the second clamp.

10. A flexible combination fixture for bushing parts as described in any one of claims 1 to 9, characterized in that: The mandrel clamp includes a shaft, a washer, and a fastener. One end of the shaft is cylindrical, and the other end is a connecting end. The workpiece is adapted to be fitted onto the connecting end. The washer and the fastener are adapted to be sequentially fitted onto the connecting end from the outside of the workpiece. The fastener is adapted to engage with the washer to prevent the washer from detaching from the connecting end. The inner diameter of the workpiece at the connecting end is smaller than the outer diameter of the washer. A fixing part is provided on the connecting end along the axial direction. The fixing part is adapted to engage with the inner and outer ends of the workpiece in the axial direction. The workpiece forms a fitting gap with the shaft between the two fixing parts. The outer diameter of the washer is larger than the outer diameter of the fixing part at the outer end of the workpiece.

Images