Fixing tool for annular workpiece

Abstract

The utility model discloses a fixing tool for an annular workpiece. The fixing tool comprises a base, a placing part, a group of first clamps, a group of second clamps, a first inner pipeline, a second inner pipeline, a first outer pipeline, a second outer pipeline, a three-position four-way valve and an air pump. The first inner pipeline and the second inner pipeline are connected with a three-position four-way valve to control the first air cylinders of all the first clamps. The first outer pipeline and the second outer pipeline are connected with a three-position four-way valve to control the second air cylinders of all the second clamps. The first inner pipe is connected with the first outer pipeline, the second inner pipe is connected with the second outer pipeline, and all the first clamps and all the second clamps synchronously press / loosen workpieces on the containing part. And the first inner pipeline, the second inner pipeline, the first outer pipeline and the second outer pipeline are reasonably designed in position, so that the workpieces can be conveniently placed on / taken out of the placing part. The clamping device has the advantages of being simple in structure, convenient to install, debug and maintain and stable in workpiece clamping.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tooling, especially relates to a fixing tooling of annular workpiece. BACKGROUND

[0002] The fixing tooling is generally installed on the T-shaped groove platform of equipment, is used for pressing the workpiece, fixes the workpiece, makes the corresponding equipment carry out the punching, hole position finishing, polishing inner wall and other processing procedures. The structure of the fixing tooling is generally designed according to the shape of the workpiece, for annular workpiece, generally designs annular placement part for its placement, uses two sets of clamps, one set is in the placement part, one set is outside the placement part, and the workpiece is fixed by pressing together. For the clamp, the cylinder is commonly used to control the pressing / loosening of the clamp. Two sets of clamps are generally designed to press / loosen synchronously, that is, a gas pump and valve are used to control the cylinder movement of two sets of clamps at the same time. Due to the small space between the two sets of clamps in the placement part, the placement / removal of the workpiece cannot be interfered and other factors, the air pipe line on the two sets of clamps is set up complicatedly, and it is not convenient to install, debug and maintain. SUMMARY

[0003] The application provides a fixing tooling of annular workpiece, which can solve the problems in the background art.

[0004] In the application, a fixing tooling of annular workpiece is provided, which comprises:

[0005] The base has a foot support at each of the four corners of the bottom surface;

[0006] The placement part is annular and fixedly connected to the top surface of the base;

[0007] One set of first clamps, the number of which is three or four, each first clamp has a first cylinder for controlling pressing / loosening, and is installed at a position in the placement part of the base;

[0008] One set of second clamps, the number of which is four to eight, each second clamp has a second cylinder for controlling pressing / loosening, and is installed at a position outside the placement part of the base;

[0009] The first inner pipe line is connected to the air holes above all the first cylinders;

[0010] The second inner pipe line is connected to the air holes below all the first cylinders;

[0011] The first outer pipe line is connected to the air holes above all the second cylinders; and the first inner pipe line and the first outer pipe line are connected as a first connection group;

[0012] The second outer pipe line is connected to the air holes below all the second cylinders; and the second inner pipe line and the second outer pipe line are connected as a second connection group;

[0013] The three-position four-way valve is connected with the A port and the B port through the first connection group and the second connection group respectively.

[0014] The air pump is connected with the P port of the three-position four-way valve.

[0015] In some embodiments, the first inner pipeline and the second inner pipeline are arranged in the air path block.

[0016] In some embodiments, the first outer pipeline and the second outer pipeline are annular and are arranged on the bottom surface of the base in an inner-outer manner; the base is provided with a plurality of through holes, which correspond to the plurality of first connection ports of the first outer pipeline and the plurality of second connection ports of the second outer pipeline in sequence; and the bottom surface of the placing part is provided with a notch corresponding to each through hole.

[0017] In some embodiments, the air path block has the same number of vertical sides as the first clamps; each vertical side is provided with a first side hole and a second side hole arranged in an upper-lower manner; a vertical side is further provided with a first connection hole with a first plug, and the first connection hole communicates with one first side hole; a vertical side is further provided with a second connection hole with a second plug, and the second connection hole communicates with one second side hole; and the bottom surface of the air path block is provided with a first bottom hole and a second bottom hole; the first bottom hole communicates with the first connection hole, and the second bottom hole communicates with the second connection hole.

[0018] In some embodiments, the plurality of first connection ports and the plurality of second connection ports correspond to each other in the radial direction.

[0019] In some embodiments, the first outer pipeline and the second outer pipeline are staggered in an upper-lower manner, and one of the inner sides is lower.

[0020] In some embodiments, the first clamp and the second clamp have the same structure and each include a mounting block mounted on the cylinder body, a connecting strip hinged to the mounting block, and a pressing block hinged to the connecting strip and the telescopic rod.

[0021] In summary, in the present application, a fixing tool for annular workpieces includes a base, a placing part, a first clamp group, a second clamp group, a first inner pipeline, a second inner pipeline, a first outer pipeline, a second outer pipeline, a three-position four-way valve, and an air pump. The first inner pipeline and the second inner pipeline are connected with the three-position four-way valve to control the first air cylinders of all the first clamps. The first outer pipeline and the second outer pipeline are connected with the three-position four-way valve to control the second air cylinders of all the second clamps. The first inner pipeline and the first outer pipeline are connected, and the second inner pipeline and the second outer pipeline are connected, so that all the first clamps and all the second clamps simultaneously press or release the workpiece on the placing part. The first inner pipeline, the second inner pipeline, the first outer pipeline, and the second outer pipeline are reasonably positioned to facilitate the placement and removal of the workpiece on the placing part. The fixing tool has the beneficial effects of simple structure, convenient installation, debugging, and maintenance, and stable workpiece clamping. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to better clarify the technical solutions in the embodiments of the present application or the background art, the drawings required to be used in the embodiments of the present application or the background art will be described below.

[0023] Figure 1 The schematic view of the first clamp and the second clamp on the base;

[0024] Figure 2 The schematic view of the first clamp and the second clamp on the base; Figure 1 The schematic view of the first clamp and the second clamp on the base;

[0025] Figure 3 The schematic view of the first clamp and the second clamp on the base;

[0026] Figure 4 The schematic view of the first clamp and the second clamp on the base; Figure 3 The top view of the present application;

[0027] Figure 5 The schematic view of the air path block;

[0028] Figure 6 The front view and the sectional view of the air path block;

[0029] Figure 7 The front view of the present application; Figure 3 The front view of the present application;

[0030] Figure 8 The enlarged schematic view of part B in the middle; Figure 7 The enlarged schematic view of part B in the middle;

[0031] Figure 9 The top view of the present application; Figure 3 The top view of the present application;

[0032] Figure 10 The schematic view of the ventilation pipeline; Figure 3 The schematic view of the ventilation pipeline.

[0033] In the drawings,

[0034] 1, base; 1a, foot support;

[0035] 2, placing part;

[0036] 3, first clamp; 3a, first air cylinder;

[0037] 4, second clamp; 4a, second air cylinder;

[0038] 5, first inner pipeline; 5a, first side hole; 5b, first connecting hole; 5b1, first plug; 5c, first bottom hole;

[0039] 6, second inner pipeline; 6a, second side hole; 6b, second connecting hole; 6b1, second plug; 6c, second bottom hole;

[0040] 7, first outer pipe; 7a, first connecting port; 7b, first connecting pipe; 7c, third connecting pipe; 7d, fourth connecting pipe;

[0041] 8, second outer pipe; 8a, second connecting port; 8b, second connecting pipe; 8c, fifth connecting pipe; 8d, sixth connecting pipe;

[0042] 9, three-position four-way valve;

[0043] 10, air pump;

[0044] 34a, mounting block; 34b, connecting strip; 34c, pressing block;

[0045] 56, air path block;

[0046] 56a, first three-way valve; 56b, first four-way valve; 56c, first flexible pipe;

[0047] 78a, second three-way valve; 78b, second four-way valve; 78c, second flexible pipe; 78d, connecting sheet. DETAILED DESCRIPTION

[0048] Further description will be made in combination with the accompanying drawings, which are only examples and not drawn in strict proportion. Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood as the general meaning understood by those skilled in the art to which the present disclosure belongs. The terms "first", "second", and similar words used in the present disclosure do not represent any order, number, or importance, but are only used to distinguish different components. The terms "include" or "contain" and similar words mean that the elements or objects before the words cover the elements or objects listed after the words and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right", and the like are only used to represent relative positional relationships, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly. The embodiments in the present application can be combined with each other without conflict.

[0049] Please refer to Figure 1 , Figure 3 and Figure 4 , a fixing tool for a ring-shaped workpiece, comprising a base 1, a placing part 2, a set of first clamps 3, a set of second clamps 4, a first inner pipe 5, a second inner pipe 6, a first outer pipe 7, a second outer pipe 8, a three-position four-way valve 9, and an air pump 10.

[0050] The four corners of the bottom surface of the base 1 are provided with foot props 1a, which are used to install the fixing tool to the T-shaped groove platform and to provide a gap between the bottom surface of the base 1 and the table top of the T-shaped groove platform.

[0051] The placement part 2 is annular and is fixedly connected to the top surface of the base 1. The fixed connection can be achieved by using screws.

[0052] In the set of first clamps 3, the number of first clamps 3 is three or four. Each first clamp 3 is provided with a first air cylinder 3a for controlling the pressing and loosening. The set of first clamps 3 is installed on the base 1 and is located in the placement part 2.

[0053] In the set of first clamps 3, the number of second clamps 4 is four to eight. Each second clamp 4 is provided with a second air cylinder 4a for controlling the pressing and loosening. The set of second clamps 4 is installed on the base 1 and is located outside the placement part 2.

[0054] The first inner pipeline 5 is connected to the air holes above all the first air cylinders 3a. The second inner pipeline 6 is connected to the air holes below all the first air cylinders 3a. That is, all the first clamps 3 are pressed and loosened synchronously.

[0055] Please refer to Figure 1 and Figure 2 In some embodiments, the first inner pipeline 5 and the second inner pipeline 6 can be connected to all the corresponding air holes by using a combination of a first three-way pipe 56a, a first four-way pipe 56b and a first hose 56c. For example, when the number of first clamps 3 is four, two first three-way pipes 56a are used, one of which is directly installed on one of the air holes above and the other of which is directly installed on one of the air holes below; two first four-way pipes 56b are used, one of which and four first hoses 56c are connected to the air holes above the four first air cylinders 3a to form the first inner pipeline 5, and the other of which and the first hoses 56c are connected to the air holes below the four first air cylinders 3a to form the second inner pipeline 6. Each of the two first three-way pipes 56a has one remaining interface, and the two interfaces are connected to one first hose 56c, which is downwardly connected to the base 1.

[0056] Please refer to Figure 3 and Figure 4 In some embodiments, the first inner pipeline 5 and the second inner pipeline 6 can be provided in the air circuit block 56. That is, the air circuit block 56 is designed to connect all the first air cylinders 3a.

[0057] Please refer to Figure 5 and Figure 6More specifically, according to the number of the first clamps 3, the air path block 56 has the same number of vertical sides, for example, if the number of the first clamps 3 is four, the air path block 56 can be cuboid. Each vertical side of the air path block 56 is provided with a first side hole 5a and a second side hole 6a arranged one above the other, and all the first side holes 5a on all the vertical sides are connected together, and all the second side holes 6a are connected together. One of all the vertical sides is selected to be provided with a first connecting hole 5b, the first connecting hole 5b is connected to the corresponding first side hole 5a, and the first connecting hole 5b is further provided with a first plug 5b1. One of the remaining vertical sides is selected to be provided with a second connecting hole 6b, the second connecting hole 6b is connected to the corresponding second side hole 6a, and the second connecting hole 6b is further provided with a second plug 6b1. The air path block 56 is provided with a first bottom hole 5c and a second bottom hole 6c on the bottom surface, the first bottom hole 5c is connected upwardly to the first connecting hole 5b, and the second bottom hole 6c is connected upwardly to the second connecting hole 6b.

[0058] That is, the first bottom hole 5c, the first connecting hole 5b, and the plurality of first side holes 5a form a one-to-many adapter first inner pipeline 5; the second bottom hole 6c, the second connecting hole 6b, and the plurality of second side holes 6a form a one-to-many adapter second inner pipeline 6. The first bottom hole 5c and the second bottom hole 6c correspond to the remaining one interface on each of the two first three-way pipes 56a. The plurality of vertical sides of the air path block 56 and the plurality of first air cylinders 3a correspond one-to-one, and the first side holes 5a and the air holes above the first air cylinders 3a are connected by a hose, and the second side holes 6a and the air holes below the first air cylinders 3a are connected by a hose. The base 1 is provided with two through holes at the position corresponding to the center of the placement part 2, and the two through holes correspond to the first bottom hole 5c and the second bottom hole 6c, respectively.

[0059] The space in several first clamps 3 is relatively small, compared with the combination of the first three-way pipe 56a, the first four-way pipe 56b, and the first hose 56c, the use of the air path block 56 is faster and more convenient to set, connect, and install.

[0060] Please refer to Figure 1 and Figure 3 , the first outer pipeline 7 connects all the air holes above the second air cylinders 4a, and is connected to the first inner pipeline 5 as a first connection group. The second outer pipeline 8 connects all the air holes below the second air cylinders 4a, and is connected to the second inner pipeline 6 as a second connection group. That is, all the second clamps 4 are synchronously pressed / tightened, and all the second clamps 4 and all the first clamps 3 are also synchronously pressed / tightened.

[0061] The first outer pipeline 7 and the second outer pipeline 8 can be a combination of a second three-way pipe 78a, a second four-way pipe 78b, and a second hose 78c, which connects all the corresponding air holes to a pipeline.

[0062] Please refer to Figure 1In some embodiments, the second three-way valves 78a are directly installed on the upper and lower air holes of the second cylinder 4a, and all the upper air holes and one of the second four-way valves 78b are connected into a ring shape by the second hose 78c to form the first outer pipeline 7, and all the lower air holes and the other of the second four-way valves 78b are connected into a ring shape to form the second outer pipeline 8. For the second cylinder 4a, the upper and lower air holes are arranged on the cylinder side wall perpendicular to the radial direction, which is convenient for connecting the second hose 78c.

[0063] Please refer to Figure 3 , Figure 9 and Figure 10 In some embodiments, the first outer pipeline 7 and the second outer pipeline 8 are installed on the bottom surface of the base 1, and are arranged in an inner-outer manner. That is, instead of using the above-mentioned mode of “the second three-way valves 78a are directly installed on the upper and lower air holes of the second cylinder 4a”, the same number of second three-way valves 78a, second four-way valves 78b and second hoses 78c are used to form the ring-shaped first outer pipeline 7 and the ring-shaped second outer pipeline 8. Correspondingly, all the second three-way valves 78a have one remaining interface, the first outer pipeline 7 has a plurality of first connecting ports 7a, and the second outer pipeline 8 has a plurality of second connecting ports 8a. The first connecting ports 7a are all connected with first connecting pipes 7b, and the second connecting ports 8a are all connected with second connecting pipes 8b. The first outer pipeline 7 and the second outer pipeline 8 are installed on the bottom surface of the base 1, which can be achieved by using connecting pieces 78d to install the second three-way valves 78a on the bottom surface of the base 1. The base 1 is provided with a plurality of through holes, which correspond to the plurality of first connecting ports 7a and the plurality of second connecting ports 8a in sequence. The bottom surface of the placing part 2 is provided with a notch corresponding to each through hole. The first connecting pipes 7b and the second connecting pipes 8b pass through the corresponding through holes and notches. The upper and lower air holes of each second cylinder 4a are respectively connected to the nearby first connecting pipe 7b and second connecting pipe 8b. For the second cylinder 4a, the upper and lower air holes are arranged on the cylinder side wall parallel to the radial direction.

[0064] The first outer pipeline 7 and the second outer pipeline 8 are arranged on the bottom surface of the base 1, which makes the structure of the fixing tool more compact and the outside more tidy.

[0065] The second four-way valve 78b of the first outer pipeline 7 has two remaining interfaces, one of which is connected with the first inner pipeline 5 by using a third connecting pipe 7c to form a first connecting group, and the other of which is connected with one of the A port and the B port of the three-position four-way valve 9 by using a fourth connecting pipe 7d. The second four-way valve 78b of the second outer pipeline 8 also has two remaining interfaces, one of which is connected with the second inner pipeline 6 by using a fifth connecting pipe 8c to form a second connecting group, and the other of which is connected with the other of the A port and the B port of the three-position four-way valve 9 by using a sixth connecting pipe 8d. The three-position four-way valve 9 can be a manual valve or an electromagnetic valve.

[0066] The air pump 10 is connected to the P port of the three-position four-way valve 9. The three positions of the three-position four-way valve 9 correspond to: switching all first clamps 3 and second clamps 4 from being pressed to being loosened; keeping all first clamps 3 and second clamps 4 clamped / loosened; and switching all first clamps 3 and second clamps 4 from being loosened to being pressed.

[0067] Referring to Figure 7 and Figure 8 In some embodiments, based on the above-mentioned embodiment that the first outer pipeline 7 and the second outer pipeline 8 are arranged in an inner-outer manner on the bottom surface of the base 1, the plurality of first connecting ports 7a and the plurality of second connecting ports 8a correspond to each other in the radial direction. That is, the plurality of second three-way valves 78a of the first outer pipeline 7 and the plurality of second three-way valves 78a of the second outer pipeline 8 correspond to each other, and the corresponding two second three-way valves 78a can be fixedly connected to the inner side surface and the outer side surface of the same connecting sheet 78d, respectively. Correspondingly, the corresponding two second three-way valves 78a use the same through hole and notch and are connected to the same second air cylinder 4a.

[0068] Referring to Figure 7 and Figure 8 In some embodiments, based on the above-mentioned embodiment that the first outer pipeline 7 and the second outer pipeline 8 are arranged in an inner-outer manner on the bottom surface of the base 1, the first outer pipeline 7 and the second outer pipeline 8 are staggered vertically, and one of them on the inner side is lower.

[0069] Referring to Figure 1 , Figure 2 and Figure 3 In some embodiments, the first clamp 3 and the second clamp 4 are structurally identical and each include: a mounting block 34a, a connecting strip 34b, and a pressing block 34c. The mounting block 34a is fixedly connected to the cylinder body. More specifically, the four corners of the top end of the cylinder body are each provided with a hole position, and any two adjacent hole positions are selected for fixed connection of the mounting block 34a. One end of the connecting strip 34b is hingedly connected to the mounting block 34a. One end of the pressing block 34c is hingedly connected to the piston rod, the middle position of the pressing block 34c is hingedly connected to the other end of the connecting strip 34b, and the other end of the pressing block 34c is used to press the workpiece.

[0070] The structure is compact and reasonable, can be disassembled together with the first air cylinder 3a / second air cylinder 4a, and different hole positions can be used for fixed connection of the mounting block 34a, so as to change the orientation of the upper air hole and the lower air hole relative to the clamp block.

Claims

1. A fixing tool for a ring-shaped workpiece, characterized by comprising: It comprises: a base (1) with a foot support (1a) at each corner of the bottom surface; a placement part (2) in the shape of a ring, fixedly connected to the top surface of the base (1); a set of first clamps (3), three or four in number, each first clamp (3) having a first air cylinder (3a) for controlling the pressing and loosening; installed on the base (1) in the placement part (2); a set of second clamps (4), four to eight in number, each second clamp (4) having a second air cylinder (4a) for controlling the pressing and loosening; installed on the base (1) outside the placement part (2); a first inner pipeline (5) connecting the air holes above all first air cylinders (3a); a second inner pipeline (6) connecting the air holes below all first air cylinders (3a); a first outer pipeline (7) connecting the air holes above all second air cylinders (4a); and the first inner pipeline (5) connected as a first connection group; a second outer pipeline (8) connecting the air holes below all second air cylinders (4a); and the second inner pipeline (6) connected as a second connection group; a three-position four-way valve (9), the first connection group and the second connection group are connected to A port and B port respectively; an air pump (10) connected to P port of the three-position four-way valve (9).

2. The ring-shaped workpiece fixing tool according to claim 1, wherein The first inner pipeline (5) and the second inner pipeline (6) are arranged in the air path block (56).

3. The ring-shaped workpiece holding tool according to claim 1, wherein The first outer pipeline (7) and the second outer pipeline (8) are both in the shape of a ring, and are installed on the bottom surface of the base (1) in a one inside and one outside manner; the base (1) is provided with a plurality of through holes, which correspond to a plurality of first connecting ports (7a) of the first outer pipeline (7) and a plurality of second connecting ports (8a) of the second outer pipeline (8) in sequence; the bottom surface of the placement part (2) is provided with a notch corresponding to each through hole.

4. The ring-shaped workpiece holding tool according to claim 2, wherein The air path block (56) has as many vertical sides as the number of first clamps (3); each vertical side is provided with a first side hole (5a) and a second side hole (6a) arranged one above the other; a vertical side is further provided with a first connecting hole (5b) with a first plug (5b1), and the first connecting hole (5b) communicates with one first side hole (5a); a vertical side is further provided with a second connecting hole (6b) with a second plug (6b1), and the second connecting hole (6b) communicates with one second side hole (6a); the bottom surface of the air path block (56) is provided with a first bottom hole (5c) and a second bottom hole (6c); the first bottom hole (5c) communicates with the first connecting hole (5b), and the second bottom hole (6c) communicates with the second connecting hole (6b).

5. The ring-shaped workpiece holding tool according to claim 3, wherein The plurality of first connecting ports (7a) and the plurality of second connecting ports (8a) correspond to each other in the radial direction.

6. The ring-shaped workpiece holding tool according to claim 3, wherein The first outer pipeline (7) and the second outer pipeline (8) are staggered up and down, and one of the inner sides is lower.

7. The ring-shaped workpiece holding tool according to claim 1, wherein The first clamps (3) and the second clamps (4) have the same structure, and each comprises: a mounting block (34a) mounted on a cylinder body, a connecting strip (34b) hinged to the mounting block (34a), and a pressing block (34c) hinged to the connecting strip (34b) and a telescopic rod.

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