A cam quick-lock mechanism

Abstract

The present invention discloses a cam quick-lock mechanism, belonging to the technical field of assembly positioning. It includes a housing installed on a fixed workpiece and a plug shaft installed on a detachable workpiece. The housing is provided with a jack matching the plug shaft. Inside the housing, there is a locking shaft perpendicular to the plug shaft. The locking shaft and the plug shaft are arranged perpendicular to each other. A locking groove is provided on the side wall of the plug shaft close to the locking shaft, and the inner side wall of the locking groove matches the outer side wall contour of the locking shaft. A slot is provided on the side wall of the locking shaft, and the inner side wall of the slot matches the outer side wall contour of the plug shaft. A sliding seat for sliding the locking shaft along its axis is fixedly connected inside the housing. One end of the locking shaft is fixedly connected to the inner side wall of the housing through an elastic member, and the other end of the locking shaft is fixedly connected with a blocking block. This cam quick-lock mechanism realizes the quick locking of the fixed workpiece and the detachable workpiece by setting the plug shaft and the locking shaft that can be mutually engaged, and can achieve the effect of quick disassembly and assembly.

Description

Technical Field

[0001] The present invention belongs to the technical field of assembly positioning, and particularly relates to a cam quick-lock mechanism. Background Art

[0002] In the industrial field, in order to adapt to different functions and achieve different uses, it is often necessary to replace and disassemble some assembled workpieces.

[0003] Most of the existing disassembly and fixing methods adopt bolt fixing. In the actual operation process, a disassembly and assembly wrench adapted to the bolt is required. Moreover, during the disassembly and assembly process, the bolts need to be screwed off one by one and then installed one by one. The whole process is time-consuming and laborious, and the efficiency is relatively low, and the effect of quick installation and fixing cannot be achieved.

[0004] Therefore, we propose a cam quick-lock mechanism to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that the existing bolt fixing method is relatively cumbersome and inconvenient to operate, and a cam quick-lock mechanism is proposed.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A cam quick-lock mechanism includes a housing installed on a fixed workpiece and a plug shaft installed on a detachable workpiece. The housing is provided with a jack matching the plug shaft. A locking shaft perpendicular to the plug shaft is arranged inside the housing. The locking shaft and the plug shaft are arranged perpendicular to each other. A locking groove is formed on the side wall of the plug shaft close to the locking shaft. The inner side wall of the locking groove matches the outer side wall contour of the locking shaft. A slot is formed on the side wall of the locking shaft. The inner side wall of the slot matches the outer side wall contour of the plug shaft;

[0008] A sliding seat for sliding the locking shaft along its axis is fixedly connected inside the housing. One end of the locking shaft is fixedly connected to the inner side wall of the housing through an elastic member. The other end of the locking shaft is fixedly connected with a resisting block. An operation hole corresponding to the position of the resisting block is formed on the side wall of the housing.

[0009] Preferably, a resisting groove is formed on the side wall of the resisting block away from the locking shaft.

[0010] Preferably, the elastic member includes a spring. One end of the spring is fixedly connected with a fixed gasket. The other end of the spring is fixedly connected with a movable gasket. The fixed gasket is fixedly connected to the inner side wall of the housing. The movable gasket abuts or is rotatably connected to the end face of the locking shaft.

[0011] Preferably, a baffle is fixedly connected inside the housing. The baffle is coaxially arranged with the locking shaft and sleeved outside the elastic member. A limiting protrusion is fixedly connected to the locking shaft, and the baffle has an opening through which the limiting protrusion can pass.

[0012] Preferably, a resisting groove is formed on the side wall of the resisting block away from the locking shaft, and the cross-section of the resisting groove is non-circular.

[0013] Preferably, the sliding seat has a sliding hole, the locking shaft is slidably arranged in the sliding hole, and the sliding hole is coaxially arranged with the operation hole.

[0014] In summary, the technical effects and advantages of the present invention are as follows: By providing a locking shaft and an inserting shaft that can be mutually engaged, the cam quick-locking mechanism can achieve the locking and separation of the locking shaft and the inserting shaft through a sliding manner. Compared with the existing bolt fixing method, it can greatly reduce the operation difficulty, improve the work efficiency, and has lower requirements for assembly tools, thus improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 is a schematic diagram of the internal structure of the present invention;

[0017] Figure 3 is a schematic diagram of the internal structure of the housing of the present invention;

[0018] Figure 4 is a schematic diagram of the positional relationship between the locking shaft and the inserting shaft of the present invention;

[0019] Figure 5 is Figure 4 a top view structural schematic diagram;

[0020] Figure 6 is Figure 4 a side view structural schematic diagram.

[0021] In the figure: 1. Housing; 11. Insertion hole; 12. Sliding seat; 121. Sliding hole; 13. Operation hole; 14. Baffle; 141. Opening;

[0022] 2. Inserting shaft; 21. Locking groove;

[0023] 3. Locking shaft; 31. Insertion slot; 32. Resisting block; 321. Resisting groove; 33. Limiting protrusion;

[0024] 4. Elastic member; 41. Spring; 42. Fixed gasket; 43. Movable gasket. DETAILED DESCRIPTION OF THE INVENTION

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0026] By providing a cam quick-lock mechanism in the embodiments of the present application, the problem in the prior art that the method of fixing by bolts is relatively cumbersome and inconvenient to operate is solved. The quick locking of the fixed workpiece and the detachable workpiece is realized through the insertion shaft and the locking shaft that can be engaged with each other, and the effect of quick disassembly and assembly can be achieved.

[0027] In order to better understand the above technical solutions, the above technical solutions will be described in detail below with reference to the accompanying drawings of the specification and specific embodiments.

[0028] Embodiment 1

[0029] As Figure 1 、 2 、shown in Figure 3, a cam quick-lock mechanism includes a housing 1 installed on a fixed workpiece and an insertion shaft 2 installed on a detachable workpiece. The housing 1 is provided with a jack 11 matching the insertion shaft 2. Inside the housing 1, a locking shaft 3 perpendicular to the insertion shaft 2 is provided. The locking shaft 3 and the insertion shaft 2 are arranged perpendicular to each other. A locking groove 21 is formed on the side wall of the insertion shaft 2 close to the locking shaft 3. The inner side wall of the locking groove 21 matches the outer side wall contour of the locking shaft 3. A slot 31 is formed on the side wall of the locking shaft 3. The inner side wall of the slot 31 matches the outer side wall contour of the insertion shaft 2. A slide seat 12 for sliding the locking shaft 3 along its axis is fixedly connected inside the housing 1. One end of the locking shaft 3 is fixedly connected to the inner side wall of the housing 1 through an elastic member 4. The other end of the locking shaft 3 is fixedly connected with a blocking block 32. An operation hole 13 corresponding to the position of the blocking block 32 is formed on the side wall of the housing 1.

[0030] Specifically, in the present application, a housing 1 is fixedly connected to the connection part of the fixed workpiece, and a jack 11 is formed on the housing 1. An insertion shaft 2 is fixed on the workpiece that needs to be frequently disassembled. When the insertion shaft 2 is fixedly installed, it is inserted from the jack 11. A locking shaft 3 that cooperates with the insertion shaft 2 for locking is slidably arranged inside the housing 1. Through the interaction between the two, the insertion shaft 2 and the housing 1 can be fixed together.

[0031] Furthermore, the axes of the insertion shaft 2 and the locking shaft 3 are perpendicular to each other. A locking groove 21 is formed in the insertion shaft 2, and a slot 31 is formed in the locking shaft 3. Both the locking groove 21 and the slot 31 are arc-shaped notches. The axis of the locking groove 21 is in the same direction as the axis of the locking shaft 3. When the insertion shaft 2 needs to be installed, the locking shaft 3 can be moved to position the slot 31 directly below the insertion shaft 2, making the axis of the slot 31 coincide with that of the insertion shaft 2, so that the insertion shaft 2 can be smoothly inserted into the housing 1. At the same time, the locking groove 21 can be moved to a position where its axis coincides with that of the locking shaft 3. At this time, the positions of the locking groove 21 and the slot 31 coincide, and their openings correspond to each other. Moreover, the locking shaft 3 can move or rotate within the locking groove 21. Finally, the slot 31 on the locking shaft 3 is moved to a position misaligned with the insertion shaft 2, enabling the locking groove 21 on the insertion shaft 2 to interact with the locking shaft 3 to achieve the locking effect.

[0032] Specifically, a sliding seat 12 is fixedly connected inside the housing 1. The sliding seat 12 has a sliding hole 121. The locking shaft 3 is slidably disposed within the sliding hole 121. The sliding hole 121 is coaxially arranged with the operation hole 13, which can limit the sliding direction of the locking shaft 3 and prevent the locking shaft 3 from deviating from its axis direction.

[0033] In addition, to prevent slippage between the locking shaft 3 and the insertion shaft 2 and ensure the tightness of the connection between the locking shaft 3 and the insertion shaft 2, an elastic member 4 is installed at one end of the locking shaft 3. The elastic member 4 can limit the position of the locking shaft 3. That is to say, in the initial state, the elastic member 4 can misalign the positions of the slot 31 and the insertion hole 11. When installation is required, by squeezing the elastic member 4, it stores elastic potential energy. After the installation is completed, the elastic potential energy is released, causing the locking shaft 3 to return to its initial position, thereby ensuring a tight connection between the locking shaft 3 and the insertion shaft 2 without loosening.

[0034] Meanwhile, to facilitate the operation of the locking shaft 3, a resisting block 32 is fixed on the end face of the locking shaft 3 away from the elastic member 4. An operation hole 13 corresponding to the position of the resisting block 32 is formed in the housing 1. During use, a rod-shaped tool can be passed through the operation hole 13 to act on the resisting block 32, and the resisting block 32 can be squeezed inward along the axis of the locking shaft 3.

[0035] Moreover, to prevent sliding when the resisting block 32 is pushed inward, a resisting groove 321 is formed on the side wall of the resisting block 32 away from the locking shaft 3.

[0036] Further, the elastic member 4 includes a spring 41. One end of the spring 41 is fixedly connected with a fixed gasket 42, and the other end of the spring 41 is fixedly connected with a movable gasket 43. The fixed gasket 42 is fixedly connected with the inner side wall of the housing 1, and the movable gasket 43 abuts against or is rotatably connected with the end face of the locking shaft 3. In the original length state of the spring 41, the positions of the slot 31 and the jack 11 are misaligned. When pressed inward, the spring 41 can be compressed, so that the slot 31 moves to the position of the jack 11.

[0037] The technical solutions in the embodiments of the present application at least have the following technical effects or advantages:

[0038] In this embodiment, by providing the locking shaft 3 and the insertion shaft 2 that can be engaged with each other, the locking and separation of the locking shaft 3 and the insertion shaft 2 can be realized by sliding. Compared with the existing bolt fixing method, the operation difficulty can be greatly reduced, the work efficiency can be improved, the requirements for assembly tools are relatively low, and the convenience of use is improved.

[0039] Embodiment Two

[0040] The embodiment of the present application further provides a cam quick-lock mechanism. As Figure 3 shown, a retaining piece 14 is fixedly connected inside the housing 1. The retaining piece 14 is coaxially arranged with the locking shaft 3 and sleeved outside the elastic member 4. A limiting protrusion 33 is fixedly connected to the locking shaft 3, and the retaining piece 14 has an opening 141 through which the limiting protrusion 33 can pass.

[0041] That is to say, a retaining piece 14 is provided inside the housing 1, and a limiting protrusion 33 interacting with the retaining piece 14 is fixedly arranged on the locking shaft 3. The setting position of the retaining piece 14 satisfies that when the slot 31 on the locking shaft 3 moves to directly below the jack 11, the side wall of the retaining piece 14 away from the operation hole 13 can be attached to the side wall of the limiting protrusion 33 close to the operation hole 13. Thus, through the interaction between the retaining piece 14 and the limiting protrusion 33, the slot 31 on the locking shaft 3 can be kept at the position directly below the jack 11, facilitating the insertion of the insertion shaft 2 at any time, without the need for the staff to always press the locking shaft 3 inward.

[0042] Further, as Figure 4 、 5 、6 shows, the retaining piece 14 is of an arc-shaped structure and has an opening 141 for accommodating the limiting protrusion 33 to pass through. It should be noted that the positions of the opening 141, the limiting protrusion 33, and the slot 31 satisfy the following conditions: when the axis of the slot 31 is the same as the axis of the jack 11 and the positions of the slot 31 and the jack 11 correspond, the limiting protrusion 33 and the opening 141 are misaligned, and the retaining piece 14 can play a role in limiting the limiting protrusion 33.

[0043] On the side wall of the abutting block 32 away from the locking shaft 3, an abutting groove 321 is provided. The cross-section of the abutting groove 321 is non-circular. By setting the non-circular abutting groove 321, the locking shaft 3 can be operated by a tool corresponding to the cross-section of the abutting groove 321, so that the locking shaft 3 can rotate around its axis, so that the limiting protrusion 33 can interact with the retaining piece 14 to fix the slot 31 at the position of the jack 11.

[0044] The technical solutions in the above embodiments of the present application at least have the following technical effects or advantages:

[0045] In this embodiment, by setting the limiting protrusion 33 and the retaining piece 14, the retaining piece 14 can play a limiting role on the limiting protrusion 33, so that the slot 31 can always be kept directly below the jack 11, without the need for manual labor to always counteract the elastic force of the spring 41, reducing the labor intensity and making it more convenient to operate and control the insertion shaft 2, and reducing the difficulty of docking.

[0046] When the present application is in use, first, the locking shaft 3 is squeezed inward along the axis by a tool until the slot 31 moves directly below the jack 11. At this time, the locking shaft 3 is rotated so that the axes of the slot 31 and the jack 11 coincide. Then, the insertion shaft 2 is inserted into the jack 11, passes through the slot 31 and exits from the other end of the housing 1. Subsequently, the position of the insertion shaft 2 is adjusted so that the axis of the locking groove 21 on the insertion shaft 2 coincides with the axis of the locking shaft 3. Finally, the locking shaft 3 is reset so that the locking groove 21 and the slot 31 are misaligned, and the insertion shaft 2 and the locking shaft 3 are engaged with each other to complete the locking and fixing. The disassembly process is opposite to the installation process.

[0047] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A cam quick-lock mechanism, comprising a housing (1) mounted on a fixed workpiece and a plug shaft (2) mounted on a detachable workpiece, characterized in that The housing (1) is provided with a jack (11) matching the insertion shaft (2). Inside the housing (1), there is a locking shaft (3) perpendicular to the insertion shaft (2). The locking shaft (3) and the insertion shaft (2) are arranged perpendicular to each other. On the side wall of the insertion shaft (2) close to the locking shaft (3), there is a locking groove (21). The inner side wall of the locking groove (21) matches the outer side wall contour of the locking shaft (3). On the side wall of the locking shaft (3), there is a slot (31). The inner side wall of the slot (31) matches the outer side wall contour of the insertion shaft (2). Inside the housing (1), there is a sliding seat (12) fixedly connected to enable the locking shaft (3) to slide along its axis. One end of the locking shaft (3) is fixedly connected to the inner side wall of the housing (1) through an elastic member (4). The other end of the locking shaft (3) is fixedly connected with a blocking block (32). On the side wall of the housing (1), there is an operation hole (13) corresponding to the position of the blocking block (32). The elastic member (4) includes a spring (41). One end of the spring (41) is fixedly connected with a fixed gasket (42). The other end of the spring (41) is fixedly connected with a movable gasket (43). The fixed gasket (42) is fixedly connected to the inner side wall of the housing (1). The movable gasket (43) abuts against or is rotatably connected to the end face of the locking shaft (3). Inside the housing (1), there is a retaining piece (14) fixedly connected. The retaining piece (14) is coaxially arranged with the locking shaft (3) and sleeved outside the elastic member (4). On the locking shaft (3), there is a limiting protrusion (33) fixedly connected. The retaining piece (14) has an opening (141) through which the limiting protrusion (33) can pass.

2. The cam quick-lock mechanism according to claim 1, wherein, On the side wall of the blocking block (32) away from the locking shaft (3), there is a counterbore (321).

3. A cam quick-lock mechanism according to claim 1, characterized in that, On the side wall of the blocking block (32) away from the locking shaft (3), there is a counterbore (321). The cross-section of the counterbore (321) is non-circular.

4. A cam quick-lock mechanism according to claim 1, characterized in that, The sliding seat (12) has a sliding hole (121). The locking shaft (3) is slidably arranged in the sliding hole (121). The sliding hole (121) is coaxially arranged with the operation hole (13).

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