Two-way cylinder boring fixture

Abstract

This utility model discloses a bidirectional cylinder boring fixture, belonging to the field of tooling fixture technology. It includes a base plate with two symmetrically arranged circular holes. A disc is fixedly mounted on each of the two holes. A circular movable space is provided between the outer wall of the disc and the inner wall of the base plate. A positioning fixture is fixedly mounted on each of the two discs. The positioning fixture includes a positioning seat and an auxiliary disc detachably mounted on top of the positioning seat. At least two movable clamping mechanisms are provided in both movable spaces. The clamping mechanisms can move back and forth within the movable spaces. This utility model places the bidirectional cylinder on the auxiliary disc and clamps it using the clamping mechanisms. The position of the clamping mechanisms can be adjusted according to the size of the bidirectional cylinder for better fixation. Furthermore, the auxiliary disc on top of the positioning seat can be replaced according to the size of the bidirectional cylinder, making this bidirectional cylinder boring fixture applicable to the fixation of various bidirectional cylinders. It is simple to operate and greatly improves work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of tooling and fixture technology, and more specifically, relates to a bidirectional cylinder boring fixture. Background Technology

[0002] The double-acting cylinder is a core actuator in a hydraulic system, primarily used to achieve bidirectional telescopic motion. Its core structure comprises two working chambers, driving the piston rod bidirectionally via hydraulic oil. It is widely used in industrial machinery, vehicles, and other fields. With rapid technological advancements, double-acting cylinders are increasingly used in cranes and excavators. Machining processes, such as hole machining, are performed on the double-acting cylinder, which requires pre-machining. However, most machine tool fixtures currently use manual bolt tightening to secure the cylinder, and typically one fixture corresponds to one type of cylinder, limiting its application. If there are multiple types of double-acting cylinders, multiple corresponding fixtures are needed, increasing costs. Furthermore, manual tightening wastes clamping time, impacting efficiency. Utility Model Content

[0003] The main purpose of this utility model is to provide a bidirectional cylinder boring fixture, which can be used to fix multiple types of bidirectional cylinders, is simple to operate, and has high work efficiency.

[0004] According to a first aspect of the present invention, a bidirectional cylinder boring fixture is provided, comprising a base plate, on which two circular holes are symmetrically arranged, and a disc is fixedly arranged on each of the two circular holes. A circular movable space is provided between the outer wall of the disc and the inner wall of the base plate. A positioning fixture is fixedly installed on each of the two discs. The positioning fixture includes a positioning seat and an auxiliary disc detachably installed on the top of the positioning seat. At least two movable clamping mechanisms are provided in each of the two movable spaces, and the clamping mechanisms can move back and forth in the movable space.

[0005] In a specific embodiment of this utility model, the pressing mechanism includes a mounting base and a pressure rod. The mounting base is movably disposed in the movable space. A fixing plate is fixedly installed on the top of the mounting base. A protrusion is fixedly disposed on the side of the fixing plate near the positioning base. A movable rod that can be raised and lowered is disposed on the fixing plate. One end of the movable rod passes through the mounting base and the fixing plate in sequence and is hinged to one end of the pressure rod. The other end of the movable rod is connected to a cylinder or a rotary cylinder. The middle part of the pressure rod is hinged to the protrusion through a hinge member.

[0006] In a specific embodiment of this utility model, the mounting base has symmetrical slots at both ends, and locking bolts are provided in the slots. The mounting base is fixedly connected to the base plate by the locking bolts.

[0007] In a specific embodiment of this utility model, the end of the pressure rod away from the movable rod is a triangular structure, and an anti-slip pad is fixedly installed at the bottom of the end of the pressure rod away from the movable rod.

[0008] In a specific embodiment of this utility model, the auxiliary disk is recessed downward to form a receiving platform for placing the workpiece. The receiving platform is provided with a plurality of small holes, and a spring pin with an externally sleeved spring is provided in the small holes.

[0009] In a specific embodiment of this utility model, a through hole is provided in the middle of the auxiliary disk, and an inclined surface is provided between the through hole and the receiving platform.

[0010] In a specific embodiment of this utility model, the auxiliary disk is provided with a first notch to facilitate the picking up and placing of workpieces.

[0011] In a specific embodiment of this utility model, the auxiliary disk is fixedly connected to the top of the positioning seat by a fixing bolt, and an assembly hole is provided on the first notch, and the fixing bolt is disposed in the assembly hole.

[0012] In a specific embodiment of this utility model, a second notch is provided on one side of the base plate, and the second notch is connected to the active space.

[0013] In a specific embodiment of this utility model, a base is provided at the bottom of the base plate, the base is fixedly connected to the base plate by a first support column, and the base is fixedly connected to the disc by a second support column.

[0014] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0015] This bidirectional cylinder boring fixture places the bidirectional cylinder on an auxiliary plate and clamps it using a clamping mechanism. The position of the clamping mechanism can be adjusted according to the size of the bidirectional cylinder for better fixation. Furthermore, the auxiliary plate on top of the positioning seat can be replaced according to the size of the bidirectional cylinder, making this invention applicable to fixing various bidirectional cylinders. It is simple to operate and greatly improves work efficiency. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a schematic diagram of the structure of a bidirectional cylinder boring fixture in one embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the base plate in one embodiment of the present invention;

[0019] Figure 3This is a schematic diagram of the mounting base in one embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the auxiliary disk in one embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the positioning seat in one embodiment of the present invention. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" and "second" may explicitly or implicitly include one or more features.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection or a movable connection, a detachable connection or a non-detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection or a connection that can communicate with each other; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two elements, an indirect connection, or an interaction between two elements.

[0027] The following disclosure provides many different implementation methods or examples for different solutions to implement this utility model.

[0028] Reference Figures 1 to 5 As shown, a bidirectional cylinder boring fixture is provided, including a base plate 1. Two circular holes 11 are symmetrically arranged on the base plate 1. A disc 12 is fixedly installed on each of the two circular holes 11. A circular movable space 13 is provided between the outer wall of the disc 12 and the inner wall of the base plate 1. A positioning fixture 2 is fixedly installed on each of the two discs 12. The positioning fixture 2 includes a positioning seat 21 and an auxiliary disc 22 that is detachably installed on the top of the positioning seat 21. At least two movable clamping mechanisms 3 are provided on each of the two movable spaces 13. The clamping mechanisms 3 can move back and forth on the movable spaces 13.

[0029] In this embodiment, the bidirectional cylinder is placed on the auxiliary plate 22. The auxiliary plate 22 of a suitable size can be replaced according to the size of the bidirectional cylinder. After being placed on the auxiliary plate 22, the clamping mechanism 3 is activated to fix the bidirectional cylinder. The clamping mechanism 3 can be rotated according to the shape change of the workpiece and moved along the circular trajectory of the movable space 13 to make the workpiece more securely fixed and to clamp the workpiece without dead angles. This utility model can be applied to the fixing of various bidirectional cylinders. It is simple to operate and greatly improves work efficiency. At the same time, it does not require the manufacture of multiple clamps. Different workpieces can be fixed simply by replacing different auxiliary plates 22.

[0030] In one embodiment of this utility model, the clamping mechanism 3 includes a mounting base 31 and a pressure rod 32. The mounting base 31 is movably disposed on the movable space 13. A fixing plate 33 is fixedly mounted on the top of the mounting base 31. A protrusion 34 is fixedly disposed on the side of the fixing plate 33 near the positioning seat 21. A movable rod 35 that can be raised and lowered is disposed on the fixing plate 33. One end of the movable rod 35 passes through the mounting base 31 and the fixing plate 33 in sequence and is hinged to one end of the pressure rod 32. The other end of the movable rod 35 is connected to a cylinder or a rotary cylinder. The middle part of the pressure rod 32 is hinged to the protrusion 34 through a hinge 36. When the telescopic end of the cylinder or the rotary cylinder extends, the movable rod 35 moves upward, and the end of the pressure rod 32 connected to the movable rod 35 is driven to be lifted. The middle part of the pressure rod 32 is rotatably connected through the hinge 36, so that the other end of it is pressed downward, thereby clamping the workpiece.

[0031] Furthermore, the mounting base 31 has symmetrical slots 311 at both ends, and locking bolts 312 are provided on the slots 311. The mounting base 31 is fixedly connected to the base plate 1 by the locking bolts 312. When the locking bolts 312 are loosened, the position of the mounting base 31 can be adjusted along the length of the slots 311 according to the size of the workpiece, so that the pressure rod 32 can press against the workpiece. At the same time, large washers are provided at both ends of the locking bolts 312. The outer diameter of the large washers is larger than the width of the slots 311, and the outer diameter of the large washers is also larger than the width of the movable space 13, ensuring that the mounting base 31 will not move when the locking bolts 312 are tightened, thus ensuring the stability of the processing.

[0032] Preferably, the mounting base 31 has a large circular hole 313 in the middle, and the cylinder or rotary cylinder can be installed in the large circular hole 313. The outer periphery of the large circular hole 313 is provided with several connecting holes 314, and the fixing plate 33 is fixedly connected to the mounting base 31 by bolts.

[0033] In one embodiment of this utility model, the end of the pressure rod 32 away from the movable rod 35 is a triangular structure, and an anti-slip pad 321 is fixedly installed at the bottom of the end of the pressure rod 32 away from the movable rod 35, which can better press the workpiece and prevent the workpiece from shifting during processing.

[0034] In one embodiment of this utility model, the auxiliary plate 22 is recessed downward to form a receiving platform 224 for placing the workpiece. The receiving platform 224 is provided with a plurality of small holes 221. A spring top pin 211 with an external spring sleeve is provided in the small holes 221. When the pressure rod 32 presses the workpiece, the workpiece is pressed down and drives the spring top pin 211 to press down as well. When the pressure rod 32 slowly releases the workpiece, the spring top pin 211 pushes the workpiece upward under the action of the spring, making it easier for the operator to remove the workpiece.

[0035] Furthermore, the auxiliary plate 22 has a through hole 222 in the middle, and an inclined surface 225 is provided between the through hole 222 and the receiving platform 224. The outer diameter of the inclined surface 225 near the receiving platform 224 is larger than that of the other end. Therefore, the inclined surface 225 gradually tilts downward and the outer diameter gradually decreases, which prevents the workpiece from falling out of the through hole 222 and being damaged. At the same time, it reduces the material development cost. The positioning seat 21 has a through hole 213 in the middle that is connected to the through hole 222, which facilitates boring.

[0036] In one embodiment of this utility model, the auxiliary disk 22 is provided with a first notch 223 for easy picking up and putting down workpieces.

[0037] Furthermore, the auxiliary plate 22 is fixedly connected to the top of the positioning seat 21 by the fixing bolt 212. The first notch 223 is provided with an assembly hole, and the fixing bolt 212 is set in the assembly hole. When the fixing bolt 212 is tightened, its top surface does not protrude out of the surface of the assembly hole, so as to avoid affecting the operator's picking and placing of workpieces.

[0038] In one embodiment of the present invention, a second notch 14 is provided on one side of the base plate 1. The second notch 14 is connected to the movable space 13. The second notch 14 facilitates the installation of the take-up and take-down disc 12.

[0039] In one embodiment of this utility model, a base 4 is provided at the bottom of the base plate 1. The base 4 is fixedly connected to the base plate 1 via a first support column 5. The base 4 is fixedly connected to the disc 12 via a second support column. A groove is provided on the disc 12. A plurality of first mounting holes are provided on the groove. A positioning seat 21 is provided on the groove. A plurality of second mounting holes that cooperate with the mounting holes are provided at the bottom of the positioning seat 21. The first mounting holes and the second mounting holes are fixedly connected by bolts. The second support column supports the disc 12 and makes the top surface of the disc 12 and the top surface of the base plate 1 on the same horizontal plane.

[0040] In one embodiment of this utility model, a position mark 121 is provided on the disc 12. Each workpiece has a corresponding position mark. After each use, the position is recorded, which makes it easy to quickly adjust the position of the mounting base 31 in the activity space 13 when using it next time, saving debugging time and improving efficiency.

[0041] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A two-way cylinder boring jig comprising a base plate (1), characterized in that, Two circular holes (11) are symmetrically arranged on the base plate (1). A disc (12) is fixedly arranged on each of the two circular holes (11). A circular movable space (13) is provided between the outer wall of the disc (12) and the inner wall of the base plate (1). A positioning clamp (2) is fixedly installed on each of the two discs (12). The positioning clamp (2) includes a positioning seat (21) and an auxiliary disc (22) that is detachably installed on the top of the positioning seat (21). At least two movable pressing mechanisms (3) are provided on each of the two movable spaces (13). The pressing mechanisms (3) can move back and forth on the movable space (13).

2. The bidirectional cylinder bore fixture of claim 1, wherein, The pressing mechanism (3) includes a mounting base (31) and a pressure rod (32). The mounting base (31) is movably disposed on the movable space (13). A fixing plate (33) is fixedly installed on the top of the mounting base (31). A protrusion (34) is fixedly disposed on the side of the fixing plate (33) near the positioning seat (21). A movable rod (35) that can be raised and lowered is disposed on the fixing plate (33). One end of the movable rod (35) passes through the mounting base (31) and the fixing plate (33) in sequence and is hinged to one end of the pressure rod (32). The other end of the movable rod (35) is connected to a cylinder or a rotary cylinder. The middle part of the pressure rod (32) is hinged to the protrusion (34) through a hinge (36).

3. The bidirectional cylinder bore fixture of claim 2, wherein, The mounting base (31) has symmetrical slots (311) at both ends, and locking bolts (312) are provided on the slots (311). The mounting base (31) is fixedly connected to the base plate (1) by the locking bolts (312).

4. The bidirectional cylinder bore fixture of claim 2, wherein, The end of the pressure rod (32) away from the movable rod (35) has a triangular structure, and an anti-slip pad (321) is fixedly installed at the bottom of the end of the pressure rod (32) away from the movable rod (35).

5. The bidirectional cylinder bore fixture of claim 1, wherein, The auxiliary disk (22) is recessed downward to form a receiving platform (224) for placing the workpiece. The receiving platform (224) is provided with several small holes (221), and a spring top pin (211) with an external spring sleeve is provided in the small holes (221).

6. The bidirectional cylinder bore fixture of claim 5, wherein, The auxiliary disk (22) has a through hole (222) in the middle, and an inclined surface (225) is provided between the through hole (222) and the receiving platform (224).

7. The bidirectional cylinder bore fixture of claim 1, wherein, The auxiliary disk (22) is provided with a first notch (223) to facilitate the picking and placing of workpieces.

8. The bidirectional cylinder bore fixture of claim 7, wherein, The auxiliary disk (22) is fixedly connected to the top of the positioning seat (21) by a fixing bolt (212). An assembly hole is provided on the first notch (223), and the fixing bolt (212) is set in the assembly hole.

9. The bidirectional cylinder bore fixture of claim 1, wherein, A second notch (14) is provided on one side of the base plate (1), and the second notch (14) is connected to the activity space (13).

10. The bidirectional cylinder bore fixture of claim 1, wherein, The bottom of the base plate (1) is provided with a base (4), the base (4) is fixedly connected to the base plate (1) by a first support column (5), and the base (4) is fixedly connected to the disc (12) by a second support column.

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