Turnover type clamping device for annular workpiece

Abstract

The utility model discloses a turnover type clamping device for annular workpieces. The turnover type clamping device comprises a clamping jig, a base, a supporting frame, a clamping translation driving mechanism, a clamping turnover driving mechanism and a turnover positioning mechanism, wherein the clamping translation driving mechanism can drive the base to translate in the X direction, and the clamping turnover driving mechanism can drive the clamping jig to rotate. The clamping jig comprises an arc-shaped seat, a profiling block, a clamping jaw and a clamping jaw driving mechanism, the annular workpiece is fixed and limited through the clamping jig, the clamping jig is driven by the clamping and overturning driving mechanism to overturn by a required angle, and the clamping jig in the state is limited in cooperation with the overturning positioning mechanism. The clamping jig is simple in structure and ingenious in design, the purpose that the annular workpiece on the clamping jig is in different inclined states can be finally achieved, and therefore the cylindrical pin and the angle pin can be automatically pressed into the annular workpiece in cooperation with other pressing machines.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical devices, in particular to a ring-shaped workpiece flip-type clamping device. Background Art

[0002] A certain type of annular workpiece requires a vertical cylindrical pin and an inclined slanted pin to be pressed downward from its upper surface. The annular workpiece has a straight hole for pressing the cylindrical pin and an inclined hole for pressing the inclined pin, which inevitably involves the clamping and positioning of the annular workpiece. Previously, there was no special clamping fixture. Therefore, we considered setting up a special clamping fixture that can achieve the positioning of the annular workpiece without hindering the pressing of the cylindrical pin and the inclined pin from above. In addition, the pressing machine generally presses the annular workpiece up and down, so when pressing the inclined pin, the annular workpiece needs to be flipped so that the inclined hole is directly up and down. When pressing the cylindrical pin, the annular workpiece needs to be in another state to ensure that the straight hole is directly up and down. Therefore, it involves the clamping and rotation of the annular workpiece.

[0003] Therefore, we propose a ring-shaped workpiece flip clamping device that can achieve the above functions. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide a flip-type clamping device for an annular workpiece, which has a simple structure and ingenious design, and can ultimately achieve the purpose of placing the annular workpiece on the clamping fixture in different tilt states, so that in conjunction with other pressing machines, both the cylindrical pins and the oblique pins can be automatically pressed into the annular workpiece.

[0005] In order to solve the above technical problems, the present invention adopts a technical solution: providing a flip-type clamping device for an annular workpiece, the flip-type clamping device comprising a clamping fixture, a base, a support frame, a clamping translation drive mechanism capable of driving the base to translate along the X direction, a clamping flip drive mechanism capable of driving the clamping fixture to rotate, and a flip positioning mechanism;

[0006] The clamping fixture includes an arc-shaped seat, a profiling block, a clamping jaw and a clamping jaw driving mechanism, the profiling block is fixed to the upper surface of the arc-shaped seat, the interior of the arc-shaped seat is provided with a transverse cavity and a longitudinal cavity, the interior of the profiling block is provided with a central cavity for placing an annular workpiece, the clamping jaw driving mechanism includes a top block, a connecting rod and two clamping jaw driving cylinders, the power output ends of the two clamping jaw driving cylinders are respectively fixedly connected to one end of the connecting rod, the lower end of the top block is fixed to the center position of the connecting rod, the clamping jaw is installed in the longitudinal cavity, and the upper end can be inserted into the central cavity, the top block is located at the center of the clamping jaw, the upper part of the clamping jaw is a circle of clamping jaw arms, and there is a longitudinal gap between adjacent clamping jaw arms; the interior of the upper part of the clamping jaw is a circular ring that is wide at the top and narrow at the bottom, and the upper part of the top block is a frustum that is wide at the top and narrow at the bottom;

[0007] The clamping jaws drive the cylinder to drive the top block down and drive a circle of clamping jaws to expand outwards to tighten and fix the annular workpiece from the inside;

[0008] The back of the arc seat is fixed to a bottom plate, the lower surface of the arc seat is an arc surface, a support seat is provided below the arc seat, a support pad is provided on the upper part of the support seat, and the upper surface of the support pad is also an arc surface;

[0009] The support seat is fixed above the base, the support frame is fixed on the base, the clamping flip driving mechanism and the flip positioning mechanism are installed on the support frame, and three positioning cavities are provided on the back of the arc seat. The clamping fixture is driven to flip by the clamping flip driving mechanism, and the arc seat is positioned by inserting the flip positioning mechanism into the positioning cavity; the base is driven to translate along the X direction by the clamping translation driving mechanism.

[0010] Furthermore, the clamping fixture also includes a positioning block, the lower surface of the positioning block is provided with four positioning columns, the upper surface of the profiling block is provided with two positioning holes, the annular workpiece has a straight hole for pressing in a cylindrical pin and an inclined hole for pressing in an inclined pin, and the positioning columns can be inserted into the positioning holes and the straight holes.

[0011] Furthermore, the connecting rod is located in the transverse cavity, and the ends of the push rods of the two clamping jaw driving cylinders are respectively fixedly connected to the ends of the connecting rod.

[0012] Furthermore, the upper portion of the annular workpiece is provided with a circle of hanging platforms extending outwards, and is hung at the upper opening of the central cavity through the hanging platforms.

[0013] Furthermore, the flip positioning mechanism includes a positioning rod and a positioning drive cylinder. The power output end of the positioning drive cylinder fixes one end of the positioning rod, and the positioning drive cylinder drives the other end of the positioning rod to be inserted into or pulled out of the positioning cavity.

[0014] Furthermore, the power output end of the clamping and flipping driving mechanism is connected to the base plate, and the clamping and flipping driving mechanism is a servo motor and a reducer matching structure. Furthermore, the clamping and translation driving mechanism is a motor and a screw rod structure.

[0015] The beneficial effects of the utility model are:

[0016] The utility model includes a clamping jig, a base, a support frame, a clamping translation drive mechanism capable of driving the base to translate along the X direction, a clamping flip drive mechanism capable of driving the clamping jig to rotate, and a flip positioning mechanism. The annular workpiece is fixed and limited by the clamping jig, and the clamping jig is driven to flip the required angle by the clamping flip drive mechanism, and the clamping jig in this state is limited by the flip positioning mechanism. Therefore, the utility model has a simple structure and a clever design, and can ultimately achieve the purpose of placing the annular workpiece on the clamping jig in different tilted states, so that in combination with other pressing machines, both the cylindrical pins and the oblique pins can be automatically pressed into the annular workpiece.

[0017] Furthermore, the clamping fixture of the present invention includes an arc-shaped seat, a contour block, a clamping jaw and a clamping jaw driving mechanism. The clamping jaw driving mechanism includes a top block, a connecting rod and two clamping jaw driving cylinders. The clamping jaw driving cylinder drives the top block to descend and drives a circle of clamping jaw arms to expand outward to tighten and fix the annular workpiece from the inside. That is, the present invention has a streamlined structure and ingenious design through the structural design of the clamping jaw and the clamping jaw driving mechanism, which can realize rapid and automatic clamping and positioning of the annular workpiece without interfering with other cooperating mechanisms.

[0018] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is one of the structural diagrams of the utility model (seen from one angle);

[0020] Figure 2 This is the second structural diagram of the utility model (seen from another angle);

[0021] Figure 3 This is one of the structural diagrams of the clamping fixture of the present invention (before placing the annular workpiece);

[0022] Figure 4 This is one of the cross-sectional views of the clamping fixture of the present invention (before placing the annular workpiece)

[0023] Figure 5 This is the second structural diagram of the clamping fixture of the utility model (after placing the annular workpiece);

[0024] Figure 6 This is the second sectional view of the clamping fixture of the present invention;

[0025] Figure 7 It is a structural schematic diagram of the clamping jaw of the present utility model;

[0026] Figure 8 It is a structural schematic diagram of the arc seat of the utility model;

[0027] The parts in the accompanying drawings are marked as follows:

[0028] Annular workpiece 10, straight hole 101, oblique hole 102, cylindrical pin 20, oblique pin 30;

[0029] Clamping fixture 1, arc seat 11, transverse cavity 111, longitudinal cavity 112, positioning cavity 113, profiling block 12, central cavity 121, positioning hole 122, clamping jaw 13, clamping jaw arm 131, longitudinal gap 132, top block 141, connecting rod 142, clamping jaw drive cylinder 143, positioning block 15, positioning column 151, bottom plate 16, support seat 17, support pad 171;

[0030] Base 21 , support frame 22 , clamping translation drive mechanism 23 , clamping flip drive mechanism 24 , flip positioning mechanism 25 , positioning rod 251 , positioning drive cylinder 252 . DETAILED DESCRIPTION

[0031] The following describes the specific embodiments of the present invention through specific examples. Those skilled in the art can easily understand the advantages and effects of the present invention based on the content disclosed in this specification. The present invention can also be implemented in other different ways, that is, various modifications and changes can be made without departing from the scope of the present invention.

[0032] The position descriptions such as up, down, left, and right in this embodiment are based on the orientations in the drawings and have no special meanings and are not intended to limit the scope of protection of the present utility model.

[0033] Embodiment: A ring-shaped workpiece flip clamping device, such as Figures 1 to 2 As shown, the flip-type clamping device includes a clamping fixture 1, a base 21, a support frame 22, a clamping translation drive mechanism 23 capable of driving the base to translate along the X direction, a clamping flip drive mechanism 24 capable of driving the clamping fixture to rotate, and a flip positioning mechanism 25;

[0034] like Figures 3 to 8As shown, the clamping fixture 1 includes an arc-shaped seat 11, a profiling block 12, a clamping jaw 13 and a clamping jaw driving mechanism, the profiling block is fixed to the upper surface of the arc-shaped seat, the interior of the arc-shaped seat is provided with a transverse cavity 111 and a longitudinal cavity 112, the interior of the profiling block is provided with a central cavity 121 for placing the annular workpiece 10, the clamping jaw driving mechanism includes a top block 141, a connecting rod 142 and two clamping jaw driving cylinders 143, the power output ends of the two clamping jaw driving cylinders are respectively fixedly connected to one end of the connecting rod, the lower end of the top block is fixed to the center position of the connecting rod, the clamping jaw is installed in the longitudinal cavity, and the upper end can be inserted into the central cavity, the top block is located at the center of the clamping jaw, the upper part of the clamping jaw is a circle of clamping jaw arms 131, and there is a longitudinal gap 132 between adjacent clamping jaw arms; the interior of the upper part of the clamping jaw is a circular ring that is wide at the top and narrow at the bottom, and the upper part of the top block is a frustum that is wide at the top and narrow at the bottom;

[0035] The clamping jaws drive the cylinder to drive the top block down and drive a circle of clamping jaws to expand outwards to tighten and fix the annular workpiece from the inside;

[0036] like Figure 1 and Figure 8 As shown, the support seat is fixed above the base, the support frame is fixed to the base, the clamping and flipping drive mechanism and the flip positioning mechanism are installed on the support frame, and three positioning cavities 113 are provided on the back of the arc seat. The clamping and flipping drive mechanism drives the clamping fixture to flip, and the flip positioning mechanism is inserted into the positioning cavity to position the arc seat. The clamping and translation drive mechanism drives the base to translate along the X direction. In this embodiment, one positioning cavity is located in the middle position, and the other two positioning cavities are symmetrically arranged around the middle positioning cavity.

[0037] In this embodiment, Figure 3 As shown, Figure 3 The bottom surface of the middle positioning block is provided with four positioning columns, only one of which is shown in the figure; the clamping fixture also includes a positioning block 15, the lower surface of which is provided with four positioning columns 151, and the upper surface of the profiling block is provided with two positioning holes 122. The annular workpiece has a straight hole 101 for pressing in the cylindrical pin 20 and an inclined hole 102 for pressing in the inclined pin 30, and the positioning columns can be inserted into the positioning holes and the straight holes.

[0038] In this embodiment, the connecting rod is located in the transverse cavity, and the ends of the push rods of the two clamping jaw driving cylinders are respectively fixedly connected to the ends of the connecting rod.

[0039] In this embodiment, the upper portion of the annular workpiece is provided with a circle of hanging platforms extending outwards, and is hung at the upper opening of the central cavity through the hanging platforms.

[0040] In this embodiment, Figure 1 and Figure 2 As shown, the flip positioning mechanism 25 includes a positioning rod 251 and a positioning drive cylinder 252. The power output end of the positioning drive cylinder fixes one end of the positioning rod, and the positioning drive cylinder drives the other end of the positioning rod to be inserted into or pulled out of the positioning cavity.

[0041] In this embodiment, the power output end of the clamping and flipping driving mechanism is connected to the base plate, and the clamping and flipping driving mechanism is a servo motor and a reducer. This is a prior art and will not be described in detail. It is sufficient to drive the clamping carrier to flip a certain angle.

[0042] In this embodiment, the clamping translation drive mechanism is a motor and a screw rod structure. This is prior art and will not be described in detail.

[0043] The working principle and working process of this utility model:

[0044] The annular workpiece is placed in the central cavity of the profiling block manually or through other automatic loading and unloading mechanisms. At this time, the upper part of the clamping jaws is located inside the annular workpiece. Then the positioning block is used to make the positioning column just inserted into the positioning hole and the straight hole, indicating that the annular workpiece is placed in place. If it cannot be inserted at the same time, the annular workpiece is rotated until the positioning column is just inserted into the positioning hole and the straight hole; then the two clamping jaws drive the cylinder to drive the connecting rod to descend and drive the top block to descend. Through the cooperation of the inclined outer peripheral surface of the top block and the inclined inner wall surface of the clamping jaws, the clamping jaw arms are expanded outwards, and finally the annular workpiece is tightened and the column is fixed, and the annular Positioning of the workpiece. At this time, the positioning drive cylinder drives the positioning rod to be inserted into the positioning cavity in the middle of the arc seat. In this state, the cylindrical pin is pressed into the straight hole of the annular workpiece through other pressing mechanisms, and then the positioning drive cylinder drives the positioning rod to be pulled out. After that, the clamping flip drive mechanism drives the clamping fixture to flip a certain angle until the positioning drive cylinder drives the positioning rod to be inserted into the positioning cavity on one side, and then the oblique pin is pressed into an oblique hole of the annular workpiece through other pressing mechanisms. Similarly, the oblique pin can also be pressed into the other oblique hole of the annular workpiece. The clamping translation drive mechanism is used to realize the translation of the clamping fixture along the X direction.

[0045] The above description is only an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure made by using the contents of the description and drawings of the present invention, or directly or indirectly used in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A flip-type clamping device for an annular workpiece, characterized in that: The flip-type clamping device comprises a clamping fixture (1), a base (21), a support frame (22), a clamping translation drive mechanism (23) capable of driving the base to translate along the X direction, a clamping flip drive mechanism (24) capable of driving the clamping fixture to rotate, and a flip positioning mechanism (25); The clamping fixture (1) includes an arc seat (11), a profiling block (12), a clamping jaw (13) and a clamping jaw driving mechanism, wherein the profiling block is fixed to the upper surface of the arc seat, a transverse cavity (111) and a longitudinal cavity (112) are provided inside the arc seat, a central cavity (121) for placing an annular workpiece (10) is provided inside the profiling block, and the clamping jaw driving mechanism includes a top block (141), a connecting rod (142) and two clamping jaw driving cylinders (143), and the two The power output end of the clamp driving cylinder is fixedly connected to one end of the connecting rod respectively, the lower end of the top block is fixed to the center position of the connecting rod, the clamp is installed in the longitudinal cavity, and the upper end can be inserted into the central cavity, the top block is located at the center of the clamp, the upper part of the clamp is a circle of clamp arms (131), and there is a longitudinal gap (132) between adjacent clamp arms; the interior of the upper part of the clamp is a circular ring that is wide at the top and narrow at the bottom, and the upper part of the top block is a truncated cone that is wide at the top and narrow at the bottom; The clamping jaws drive the cylinder to drive the top block down and drive a circle of clamping jaws to expand outwards to tighten and fix the annular workpiece from the inside; The back of the arc seat is fixed on a bottom plate (16), the lower surface of the arc seat is an arc surface, a support seat (17) is provided below the arc seat, a support pad (171) is provided on the upper part of the support seat, and the upper surface of the support pad is also an arc surface; The support seat is fixed above the base, the support frame is fixed on the base, the clamping flip driving mechanism and the flip positioning mechanism are installed on the support frame, and three positioning cavities (113) are provided on the back of the arc seat. The clamping fixture is driven to flip by the clamping flip driving mechanism, and the arc seat is positioned by inserting the flip positioning mechanism into the positioning cavity; the base is driven to translate along the X direction by the clamping translation driving mechanism.

2. The annular workpiece flip clamping device according to claim 1, characterized in that: The clamping fixture also includes a positioning block (15), the lower surface of the positioning block is provided with four positioning columns (151), the upper surface of the profiling block is provided with two positioning holes (122), the annular workpiece has a straight hole (101) for pressing in a cylindrical pin (20) and an inclined hole (102) for pressing in an inclined pin (30), and the positioning columns can be inserted into the positioning holes and the straight holes.

3. The annular workpiece flip clamping device according to claim 1, characterized in that: The connecting rod is located in the transverse cavity, and the ends of the push rods of the two clamping jaw driving cylinders are respectively fixedly connected to the ends of the connecting rod.

4. The annular workpiece flip clamping device according to claim 1, characterized in that: The upper part of the annular workpiece is provided with a circle of hanging platforms extending outwards, and is hung at the upper opening of the central cavity through the hanging platforms.

5. The annular workpiece flip clamping device according to claim 1, characterized in that: The flip positioning mechanism (25) comprises a positioning rod (251) and a positioning drive cylinder (252), wherein the power output end of the positioning drive cylinder fixes one end of the positioning rod, and the positioning drive cylinder drives the other end of the positioning rod to be inserted into or pulled out of the positioning cavity.

6. The annular workpiece flip clamping device according to claim 1, characterized in that: The power output end of the clamping and flipping driving mechanism is connected to the base plate, and the clamping and flipping driving mechanism is a coordinated structure of a servo motor and a reducer.

7. The annular workpiece flip clamping device according to claim 1, characterized in that: The clamping translation driving mechanism is a motor and a screw rod structure.

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