Automatic positioning clamp system
By designing an automatic positioning fixture system, the hydraulic system is used to drive the internal expansion core and the external expansion core to expand and automatically position the workpiece, the problem of insufficient compression force during the clamping of the three-jaw chuck is solved, and the accurate positioning and size of the workpiece is achieved.
Patent Information
- Application Number
- CN202420838913.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-04-22
AI Technical Summary
When using a three-claw chuck to fix and clamp the disc toothed parts, the clamping process is insufficient due to human fatigue, resulting in inaccurate positioning of the workpiece, which cannot be closely attached to the positioning surface, and cannot guarantee the size of the workpiece, resulting in poor product.
An automatic positioning clamp system is designed, including a mounting seat, a clamping assembly and a fixing assembly. The clamping assembly consists of a clamping seat, an outer expansion core, an inner expansion core, a tie rod and a limit seat. The tie rod and an inner expansion core are driven by a hydraulic system. The inner expansion core is in a tapered shape. When the inner expansion core moves backward, the outer expansion core is extended to expand the workpiece and automatically move the workpiece to the positioning surface.
The automatic fitting and positioning of the workpiece is realized, which avoids the problem of insufficient compression force caused by human fatigue, ensures accurate positioning and size of the workpiece, and solves the problem of product defects.
Smart Images
Figure CN222608063U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gearbox plate gear processing, in particular to an automatic positioning fixture system. Background Art
[0002] At present, a three-jaw chuck is used to fix the disc gear parts during rough machining and fine machining. The operator manually installs the workpiece on the chuck positioning surface, presses the workpiece with his hands, and then steps on a switch to clamp it.
[0003] However, during the clamping process, it is very easy for the clamping force to be insufficient due to human fatigue, resulting in the workpiece being unable to fit tightly against the positioning surface and being inaccurately positioned, and the workpiece size cannot be guaranteed, resulting in product defects. Utility Model Content
[0004] The utility model aims to provide an automatic positioning fixture system, which solves the problem that when a three-jaw chuck is used to fix and clamp a toothed part, insufficient clamping force may occur due to human fatigue during the clamping process, resulting in the workpiece being unable to fit tightly against the positioning surface and being inaccurately positioned, and the workpiece size cannot be guaranteed, resulting in defective products.
[0005] To achieve the above-mentioned purpose, the utility model provides an automatic positioning fixture system, including a mounting seat, a clamping assembly and a fixing assembly; the clamping assembly includes a clamping seat, an outer expansion core, an inner expansion core and a pull rod, the clamping seat is connected to the mounting seat and is located on the left side of the mounting seat, the number of the outer expansion cores is multiple, and the multiple outer expansion cores are respectively fixedly connected to the clamping seat and are respectively located on the side of the outer expansion core away from the mounting seat, the inner expansion core is slidably connected to the clamping seat and is located in the middle of the multiple outer expansion cores, the pull rod is threadedly connected to the inner expansion core and is located on the side of the inner expansion core close to the mounting seat, and the fixing assembly is connected to the mounting seat.
[0006] Wherein, the clamping assembly further comprises a limiting seat, which is connected to the mounting seat and is located outside the clamping seat.
[0007] Among them, the surface of the mounting seat is provided with multiple threaded holes, the surface of the clamping seat is provided with multiple fixing holes, the surface of the limit seat is provided with multiple mounting holes, the surface of the clamping seat is also provided with three limit holes, and the surface of the inner expansion core is provided with three limit grooves.
[0008] Among them, the fixing assembly includes a No. 1 screw, a No. 2 screw and a limiting screw. The number of the No. 1 screws is multiple, and the multiple No. 1 screws are respectively threadedly connected to the mounting seat and respectively pass through the fixing hole and the threaded hole. The number of the No. 2 screws is multiple, and the multiple No. 2 screws are respectively threadedly connected to the mounting seat and respectively pass through the mounting hole and the threaded hole. The number of the limiting screws is three, and the three limiting screws are respectively threadedly connected to the clamping seat, and the three limiting screws respectively pass through the limiting holes and are respectively located in the limiting grooves.
[0009] Wherein, the automatic positioning fixture system includes a buffer pad and a spring sleeve, the buffer pad is detachably connected to the plurality of external expansion cores and is located outside the external expansion core, and the spring sleeve is detachably connected to the external expansion core and is located outside the external expansion core.
[0010] The utility model discloses an automatic positioning fixture system, wherein the clamping seat is connected to the pull rod by a thread, the pull rod is connected to an external machine tool hydraulic system, the inner expansion core is a tapered shape, when the expansion core moves backward, the outer expansion core is expanded to expand the workpiece, and the workpiece moves backward to a fixed positioning surface together with the outer expansion core, so that the workpiece is automatically fitted and positioned, and the problem that when a three-jaw chuck is used to fix and clamp disc teeth, insufficient clamping force due to human fatigue is very likely to occur during the clamping process, resulting in the workpiece being unable to fit tightly against the positioning surface and being inaccurately positioned, and the workpiece size cannot be guaranteed, resulting in product defects. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.
[0012] Figure 1 It is a schematic diagram of the overall structure of an automatic positioning fixture system according to the first embodiment of the utility model.
[0013] Figure 2 It is a structural schematic diagram of a mounting base and a fixing assembly of the first embodiment of the utility model.
[0014] Figure 3 It is a structural schematic diagram of a clamping assembly and a fixing assembly of the first embodiment of the utility model.
[0015] Figure 4 It is a structural schematic diagram of the clamping assembly of the first embodiment of the utility model.
[0016] Figure 5 It is a partial cross-sectional schematic diagram of an automatic positioning fixture system according to the second embodiment of the utility model.
[0017] In the figure: 101-mounting seat, 102-clamping seat, 103-external expansion core, 104-inner expansion core, 105-pull rod, 106-limiting seat, 107-threaded hole, 108-fixing hole, 109-mounting hole, 110-limiting hole, 111-limiting groove, 112-No. 1 screw, 113-No. 2 screw, 114-limiting screw, 201-buffer pad, 202-spring sleeve. DETAILED DESCRIPTION
[0018] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.
[0019] The first embodiment of the present application is:
[0020] See also Figures 1 to 4 ,in, Figure 1 This is a schematic diagram of the overall structure of an automatic positioning fixture system according to the first embodiment of the utility model. Figure 2 This is a schematic diagram of the structure of the mounting base and the fixing assembly of the first embodiment of the utility model. Figure 3 It is a structural schematic diagram of the clamping assembly and the fixing assembly of the first embodiment of the utility model. Figure 4 It is a structural schematic diagram of the clamping assembly of the first embodiment of the utility model. The utility model provides an automatic positioning fixture system, including a mounting seat 101, a clamping assembly and a fixing assembly, wherein the clamping assembly includes a clamping seat 102, an outer expansion core 103, an inner expansion core 104, a pull rod 105 and a limit seat 106, and the fixing assembly includes a No. 1 screw 112, a No. 2 screw 113 and a limit screw 114; the aforementioned scheme solves the problem that when using a three-jaw chuck to fix and clamp disc-like parts, it is very easy to have insufficient clamping force due to human fatigue during the clamping process, resulting in the workpiece being unable to fit tightly against the positioning surface and inaccurately positioned, and the workpiece size cannot be guaranteed, resulting in product defects. It can be understood that the aforementioned scheme can be used in the scenario of fixing and tightening disc-like parts, and can also be used to solve the problem of fixing disc-like parts of different sizes.
[0021] According to this specific embodiment, the clamping seat 102 is connected to the mounting seat 101 and is located on the left side of the mounting seat 101. The number of the external expansion cores 103 is multiple, and the multiple external expansion cores 103 are respectively fixedly connected to the clamping seat 102 and are respectively located on the side of the external expansion core 103 away from the mounting seat 101. The inner expansion core 104 is slidably connected to the clamping seat 102 and is located in the middle of the multiple external expansion cores 103. The pull rod 105 is connected to the inner expansion core 104 by a thread and is located The inner expansion core 104 is close to one side of the mounting seat 101, the fixing assembly is connected to the mounting seat 101, the pull rod 105 is connected to the external machine tool hydraulic system, and the inner expansion core 104 is a tapered shape. When the hydraulic system of the external machine tool pulls the pull rod 105 backward, the inner expansion core 104 is driven to move backward. When the inner expansion core 104 moves backward, the outer expansion core 103 is expanded to expand the workpiece, and at the same time, the workpiece moves backward together with the outer expansion core 103 to a fixed positioning surface, thereby achieving automatic fitting and positioning.
[0022] The limiting seat 106 is connected to the mounting seat 101 and is located outside the clamping seat 102 . The limiting seat 106 provides a limiting function for the movement of the workpiece and the expansion of the outer expansion core 103 .
[0023] Secondly, the surface of the mounting seat 101 is provided with a plurality of threaded holes 107, the surface of the clamping seat 102 is provided with a plurality of fixing holes 108, the surface of the limiting seat 106 is provided with a plurality of mounting holes 109, the surface of the clamping seat 102 is also provided with three limiting holes 110, and the surface of the inner expansion core 104 is provided with three limiting grooves 111, the threaded hole 107 is provided with a thread that meshes with the thread of the screw, the fixing hole 108 and the mounting hole 109 provide limiting effects for the No. 1 screw 112 and the No. 2 screw 113 respectively, and the limiting hole 110 is provided with a thread that meshes with the limiting screw 114.
[0024] Again, the number of the No. 1 screw rods 112 is multiple, and the multiple No. 1 screw rods 112 are respectively threadedly connected to the mounting seat 101 and respectively pass through the fixing holes 108 and the threaded holes 107. The number of the No. 2 screw rods 113 is multiple, and the multiple No. 2 screw rods 113 are respectively threadedly connected to the mounting seat 101 and respectively pass through the mounting holes 109 and the threaded holes 107. The number of the limiting screw rods 114 is three, and the three limiting screw rods 114 are respectively threadedly connected to the mounting seat 101 and respectively pass through the mounting holes 109 and the threaded holes 107. 14 are respectively threadedly connected with the clamping seat 102, the three limiting screws 114 respectively pass through the limiting holes 110, and are respectively located in the limiting grooves 111, the clamping seat 102 is connected with the mounting seat 101 through the No. 1 screw 112, and the limiting seat 106 is connected with the mounting seat 101 through the No. 2 screw 113, and the movement of the inner expansion core 104 is limited by the cooperation of the limiting screw 114 and the limiting groove 111.
[0025] An automatic positioning fixture system is used in this embodiment, the clamping seat 102 is connected to the pull rod 105 by a thread, the pull rod 105 is connected to the external machine tool hydraulic system, the inner expansion core 104 is a tapered shape, when the expansion core moves backward, the outer expansion core 103 is expanded to expand the workpiece, and the workpiece moves backward together with the outer expansion core 103 to a fixed positioning surface, so as to achieve automatic fitting and positioning of the workpiece, and solves the problem that when using a three-jaw chuck to fix and clamp disc teeth, the clamping force is insufficient due to human fatigue during the clamping process, resulting in the workpiece being unable to fit tightly against the positioning surface and inaccurately positioned, and the workpiece size cannot be guaranteed, resulting in product defects.
[0026] The second embodiment of the present application is:
[0027] Based on the first embodiment, please refer to Figure 5 ,in, Figure 5 It is a partial cross-sectional schematic diagram of an automatic positioning fixture system according to the second embodiment of the utility model.
[0028] The automatic positioning fixture system of this embodiment includes a buffer pad 201 and a spring sleeve 202 .
[0029] According to this specific embodiment, the buffer pad 201 is detachably connected to the plurality of external expansion cores 103 and is located on the outside of the external expansion core 103. The spring sleeve 202 is detachably connected to the external expansion core 103 and is located on the outside of the external expansion core 103. The buffer pad 201 provides a buffering protection for the expansion of the external expansion core 103. When the workpiece is fixed, the expansion of the external expansion core 103 expands the spring sleeve 202 to achieve the purpose of positioning the workpiece. The spring sleeve 202 is in direct contact with the workpiece, which reduces the friction between the external expansion core 103 and the workpiece and prolongs the service life of the equipment.
[0030] When an automatic positioning fixture system of this embodiment is used to fix a workpiece, the expansion of the outer expansion core 103 expands the spring sleeve 202 to achieve the purpose of positioning the workpiece. The spring sleeve 202 is in direct contact with the workpiece, which reduces the friction between the outer expansion core 103 and the workpiece and extends the service life of the equipment.
[0031] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.
Claims
1. An automatic positioning fixture system, comprising a mounting seat, characterized in that: Also included are a clamping assembly and a fixing assembly; The clamping assembly includes a clamping seat, an outer expansion core, an inner expansion core and a pull rod. The clamping seat is connected to the mounting seat and is located on the left side of the mounting seat. There are multiple outer expansion cores, and the multiple outer expansion cores are respectively fixedly connected to the clamping seat and are respectively located on the side of the outer expansion core away from the mounting seat. The inner expansion core is slidably connected to the clamping seat and is located in the middle of the multiple outer expansion cores. The pull rod is threadedly connected to the inner expansion core and is located on the side of the inner expansion core close to the mounting seat. The fixing assembly is connected to the mounting seat.
2. An automatic positioning fixture system as claimed in claim 1, characterized in that: The clamping assembly also includes a limiting seat, which is connected to the mounting seat and is located outside the clamping seat.
3. An automatic positioning fixture system as claimed in claim 2, characterized in that: The surface of the mounting seat is provided with a plurality of threaded holes, the surface of the clamping seat is provided with a plurality of fixing holes, the surface of the limiting seat is provided with a plurality of mounting holes, the surface of the clamping seat is also provided with three limiting holes, and the surface of the inner expansion core is provided with three limiting grooves.
4. An automatic positioning fixture system as claimed in claim 3, characterized in that: The fixing assembly includes a No. 1 screw, a No. 2 screw and a limiting screw. There are multiple No. 1 screws, and the multiple No. 1 screws are respectively threadedly connected to the mounting seat and pass through the fixing holes and the threaded holes respectively. There are multiple No. 2 screws, and the multiple No. 2 screws are respectively threadedly connected to the mounting seat and pass through the mounting holes and the threaded holes respectively. There are three limiting screws, and the three limiting screws are respectively threadedly connected to the clamping seat, and the three limiting screws pass through the limiting holes respectively and are respectively located in the limiting grooves.
5. The automatic positioning fixture system according to claim 1, characterized in that: The automatic positioning fixture system includes a buffer pad and a spring sleeve. The buffer pad is detachably connected to the plurality of external expansion cores and is located outside the external expansion cores. The spring sleeve is detachably connected to the external expansion cores and is located outside the external expansion cores.