A component switching device and plug-in mechanism

Abstract

The present invention relates to the technical field of production equipment, and discloses a component switching device, including a frame, a rotating shaft rotatably arranged on the frame, an eccentric piece arranged on the rotating shaft, and a locking mechanism; the frame has a slot for inserting a switching block; the rotating shaft can be rotated and switched around its axis between a clamping position and a loose position; when the rotating shaft is located at the clamping position, a clamping space for clamping the switching block is formed between the eccentric piece and the inner wall of the slot; the rotating shaft is locked in the clamping position by the locking mechanism. When the eccentric piece on the rotating shaft of the present invention rotates and switches to the clamping position, the distance between the eccentric piece and the bottom of the slot becomes smaller, so that the switching block located in the slot can be clamped; at the same time, a locking mechanism is provided to keep the position of the rotating shaft at the clamping position, thereby ensuring the locking effect and avoiding the waste of working time due to locking failure.

Description

Technical Field

[0001] The present invention relates to the technical field of production equipment, and in particular to a component switching device. Background Art

[0002] The plug-in mechanism includes a component switching device and a switching block inserted into the switching device. The plug-in mechanism is used at various production line stations, such as welding, stamping, painting and assembly stations of automobile production lines.

[0003] When producing similar products or changing production requirements, it is necessary to switch corresponding parts. The parts are connected with switching blocks. If the sizes of the switching blocks of the parts before and after the switching are only slightly different, the original switching device can be used to fix the switching blocks of the parts after the switching, so as to realize the sharing of fixtures, placement tables and transfer trolleys, saving the labor cost of replacing the switching device, and at the same time, it can also reduce the models of switching devices, saving production labor and storage space.

[0004] For example, in the component quick switching device disclosed in CN206316573U, the component switching block and the frame of the component switching device are arranged to be detachably connected, and when the switching block is connected to the frame, the switching block is fixed by eccentrically pressing the switching block.

[0005] However, in the above-disclosed quick switching device for components, the eccentric piece is kept in a compressed state by means of a ratchet, and its locking effect is poor. When the switching block of the component is locked, the eccentric piece is prone to loosening and the switching block is unstable. At this time, engineers need to spend time to deal with it, resulting in a waste of work hours. Summary of the invention

[0006] The object of the present invention is to provide a component switching device with good locking effect.

[0007] In order to achieve the above-mentioned purpose, the present invention provides a component switching device, including a frame, a rotating shaft rotatably arranged on the frame, an eccentric piece arranged on the rotating shaft, and a locking mechanism; the frame has a slot for inserting a switching block; the rotating shaft can be rotated and switched around its axis between a clamping position and a relaxed position; when the rotating shaft is located at the clamping position, a clamping space for clamping the switching block is formed between the eccentric piece and the inner wall of the slot; the rotating shaft is locked in the clamping position by the locking mechanism.

[0008] Furthermore, a wedge-shaped groove bottom matching the shape of the switching block is formed in the slot.

[0009] Furthermore, the eccentric piece is connected to a handle extending outside the frame.

[0010] Furthermore, the frame includes a positioning block, a first block and a second block, the positioning block is provided with the slot, the first block and the second block are fixed on the positioning block, and the rotating shaft is rotatably connected to the first block and the second block.

[0011] Furthermore, the locking mechanism includes a locking block pivotally connected to the frame, a first limit member eccentrically arranged on the rotating shaft, and a second limit member arranged on the locking block; the locking block can be switched between a locking position and an unlocking position; when the rotating shaft is located at the clamping position, the first limit member is located at a first predetermined position; when the rotating shaft is located at the relaxing position, the first limit member is located at a second predetermined position; when the locking block is located at the locking position and the rotating shaft is located at the clamping position, the second limit member is located on a moving path of the first limit member from the second predetermined position to the first predetermined position, and the second limit member abuts against the first limit member.

[0012] Furthermore, the locking block is connected to a return spring, which can switch the locking block from the unlocked position to and maintain it in the locked position; the second limit member is provided with a guide surface and an abutment surface; when the locking block is located in the locked position and the rotating shaft is located in the clamping position, the abutment surface of the second limit member abuts against the first limit member; when the locking block is located in the locked position and the rotating shaft is located in the relaxed position, the guide surface is on a moving path of the first limit member from the first predetermined position to the second predetermined position; when the first limit member moves from the first predetermined position to the second predetermined position, it contacts and pushes the guide surface, driving the locking block to switch from the locked position to the unlocked position; when the locking block is in the unlocked position, the guide surface disengages from the moving path of the first limit member from the first predetermined position to the second predetermined position.

[0013] Furthermore, the axial direction of the rotating shaft is parallel to the insertion direction of the switching block, and the locking block is provided with a locking hook for cooperating with a slot on the switching block.

[0014] Furthermore, the locking block is pivotally connected to the frame body through a locking shaft, and the locking block rotates around the locking shaft to switch between a locking position, an unlocking position and an unhooking position, and the locking block passes through an unlocking position when switching from the locking position to the unhooking position; when the locking block is in the unhooking position, the locking hook disengages from the engagement with the slot; when the locking block is in the unlocking position and the locking position, the locking hook engages with the slot.

[0015] The present invention also provides a plug-in mechanism, comprising: a frame, a switching block inserted into a slot of the frame, a rotating shaft rotatably arranged on the frame, an eccentric piece arranged on the rotating shaft, and a locking mechanism; the rotating shaft can be rotated and switched around its axis between a clamping position and a loose position; when the rotating shaft is located at the clamping position, the eccentric piece presses the switching block into the slot; the rotating shaft is locked in the clamping position by the locking mechanism.

[0016] Furthermore, an adjustment groove is provided on the end surface of the switching block facing the eccentric member, and an adjustment sheet is installed in the adjustment groove. When the rotating shaft is located at the pressing position, the eccentric member presses the adjustment sheet.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The rotating shaft of the present invention rotates and switches between a clamping position and a loose position. When the eccentric piece thereon switches the rotating shaft to the clamping position, the distance between the eccentric piece and the bottom of the slot becomes smaller, thereby being able to clamp the switching block located in the slot. At the same time, a locking mechanism is provided to keep the position of the rotating shaft in the clamping position, thereby ensuring the locking effect and avoiding waste of working hours due to locking failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of a component switching device according to an embodiment of the present invention.

[0020] Figure 2 It is an exploded view of the main components of the component switching device according to an embodiment of the present invention.

[0021] Figure 3 This is a state diagram of the component switching device according to an embodiment of the present invention when the rotating shaft is in a relaxed position.

[0022] Figure 4 This is a state diagram of the component switching device according to an embodiment of the present invention when the rotating shaft is in a clamping position.

[0023] Figure 5 It is a schematic diagram of a first limit member and a second limit member of a component switching device according to an embodiment of the present invention abutting against each other.

[0024] Figure 6 4 is a side view of an eccentric member of a component switching device according to an embodiment of the present invention.

[0025] In the figure, 10 is a switching block; 11 is a card slot; 12 is an adjustment slot; 13 is an adjustment sheet.

[0026] 20-frame; 21-slot; 22-first block; 23-second block; 24-slot bottom.

[0027] 30-eccentric member; 31-rotating shaft.

[0028] 40 - locking block; 41 - return spring; 42 - locking hook; 43 - locking shaft.

[0029] 51 - first limiting member; 52 - second limiting member.

[0030] 60-Handle.

[0031] 70-Bolt.

[0032] S1-first direction; S2-second direction. DETAILED DESCRIPTION

[0033] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0039] like Figure 1-6 As shown, an embodiment of the present invention discloses a component switching device, including a frame 20, a rotating shaft 31 rotatably arranged on the frame 20, an eccentric piece 30 arranged on the rotating shaft 31, and a locking mechanism; the frame 20 has a slot 21 for inserting a switching block 10; the rotating shaft 31 can be rotated and switched around its axis between a clamping position and a loose position; when the rotating shaft 31 is located at the clamping position, a clamping space for clamping the switching block 10 is formed between the eccentric piece 30 and the inner wall of the slot 21; the rotating shaft 31 is locked in the clamping position by the locking mechanism.

[0040] When the rotating shaft 31 is in the relaxed position, the switching block 10 is inserted into the slot 21, and then the eccentric piece 30 is rotated so that the eccentric piece 30 and the inner wall of the slot 21 form a clamping space for clamping the switching block 10, and the switching block 10 is pressed in the clamping space. Figure 1 As shown, the locking mechanism locks the rotating shaft 31 in the clamping position. When the switching block 10 in the slot 21 needs to be pulled out, the locking mechanism is unlocked, the rotating shaft 31 is rotated to switch to the loose position, and the switching block 10 in the slot 21 is pulled out.

[0041] The rotating shaft 31 of the present invention is rotatably switched between a clamping position and a relaxing position. When the rotating shaft 31 switches to the clamping position, the distance between the eccentric piece 30 and the groove bottom 24 of the slot 21 becomes smaller, thereby being able to clamp the switching block 10 located in the slot 21. At the same time, a locking mechanism is provided to keep the position of the rotating shaft 31 in the clamping position, thereby ensuring the locking effect and avoiding waste of work time due to locking failure.

[0042] like Figure 3-Figure 4 As shown, Figure 3 The structure diagram of the rotating shaft 31 when it is in a relaxed position is shown. Figure 3In the state shown, the handle 60 is rotated along the first direction S1, and the rotating shaft 31 is rotated and switched from the relaxed position to the tightened position.

[0043] exist Figure 4 In the state shown, the handle 60 is rotated along the second direction S2, and the rotating shaft 31 is rotated and switched from the tightening position to the relaxing position.

[0044] In one embodiment, if Figure 3-Figure 4 As shown, a wedge-shaped groove bottom 24 matching the shape of the switching block 10 is formed in the slot 21; the bottom of the switching block 10 is configured as a wedge-shaped structure matching the wedge-shaped groove bottom 24, and when the switching block 10 is inserted into the slot 21, the bottom of the switching block 10 fits in the wedge-shaped groove bottom 24. After the switching block 10 is inserted into the slot 21, it is automatically aligned with the cooperation of the wedge-shaped groove bottom 24 and the switching block 10.

[0045] In one embodiment, the eccentric member 30 is connected to a handle 60 extending outside the frame 20 , so that a user can grasp the handle 60 to rotate the eccentric member 30 and simultaneously drive the rotating shaft 31 to rotate.

[0046] In one embodiment, the frame 20 includes a positioning block, a first block 22, and a second block 23. The positioning block forms the slot 21 with an opening on one side. The first block 22 and the second block 23 are fixed to the positioning block and have a portion extending into the slot 21. The portion extending into the slot 21 is provided with a rotating shaft 31 hole. Both ends of the rotating shaft 31 are rotatably connected to the rotating shaft 31 holes on the first block 22 and the second block 23. The first block 22 and the second block 23 are fixed to the positioning block by bolts 70, so that the first block 22 and the second block 23 can be disassembled to disassemble the rotating shaft 20 and inspect and maintain the rotating shaft 20.

[0047] In one embodiment, the locking mechanism includes a locking block 40 pivotally connected to the frame 20 , a first limiting member 51 eccentrically disposed on the rotating shaft 31 , and a second limiting member 52 disposed on the locking block 40 .

[0048] The locking block 40 is pivotally connected to the frame body 20 via a locking shaft 43 and can be rotated and switched between a locking position and an unlocking position.

[0049] When the rotating shaft 31 is located at the pressing position, the first limiting member 51 is located at a first predetermined position; when the rotating shaft 31 is located at the relaxing position, the first limiting member 51 is located at a second predetermined position.

[0050] The locking mechanism can keep the rotating shaft 31 in the clamping position. Specifically, when the rotating shaft 31 is located in the clamping position, the operating lock block 40 is rotated around the locking shaft 43 from the unlocking position to the locking position. At this time, the second limit member 52 is located on the moving path of the first limit member 51 from the second predetermined position to the first predetermined position, and the second limit member 52 abuts against the first limit member 51, preventing the first limit member 51 from rotating from the second predetermined position to the first predetermined position, that is, preventing the rotating shaft 31 from rotating and switching from the clamping position to the relaxed position.

[0051] In this embodiment, the rotation of the rotating shaft 31 drives the first stopper 51 eccentrically connected to the rotating shaft 31 to switch between different predetermined positions, and the second stopper 52 of the locking block 40 is arranged on the path of the first stopper 51 rotating from the second predetermined position to the first predetermined position, which can effectively prevent the rotation from returning to the loose position. In addition, the first stopper 51 and the second stopper 52 are in contact, so that the rotating shaft 31 will not shake, resulting in an unstable locking effect.

[0052] In one embodiment, the locking block 40 is connected to a return spring 41, and when the return spring 41 is compressed, the locking block 40 can be switched from an unlocked position to and maintained in a locked position; the second limiting member 52 has a guide surface and an abutment surface; when the locking block 40 is located in the locked position and the rotating shaft 31 is located in the clamping position, the abutment surface of the second limiting member 52 abuts against the first limiting member 51.

[0053] When the locking block 40 is located in the locking position and the rotating shaft 31 is located in the relaxing position, the guiding surface is on the moving path of the first limiting member 51 from the first predetermined position to the second predetermined position; when the first limiting member 51 moves from the first predetermined position to the second predetermined position, it contacts and pushes the guiding surface, driving the locking block 40 to switch from the locking position to the unlocking position.

[0054] When the locking block 40 is in the unlocked position, the guide surface disengages from the moving path of the first limiting member 51 from the first predetermined position to the second predetermined position; thereby, it can switch from the unlocked position to the locked position under the action of the reset spring 41. At this time, the first limiting member 51 is in the second predetermined position, and the abutting surface of the second limiting member 52 abuts against the first limiting member 51, preventing the first limiting member 51 from resetting to the first predetermined position.

[0055] In the present embodiment, a specific structure of a locking mechanism is provided, which, through the mutual cooperation of a first limit member 51 and a second limit member 52 having a guide surface and abutting surface, can drive the first limit member 51 to drive the second limit member 52 when the operating handle rotates the rotating shaft 31 from the relaxed position to the clamped position, so that the second limit member 52 first leaves the moving path, and then re-engages in the moving path when the first limit member 51 rotates to the first predetermined position, thereby preventing the first limit member 51 from resetting to the second predetermined position, thereby providing a good locking effect.

[0056] In one embodiment, the axial direction of the rotating shaft 31 is parallel to the insertion direction of the switching block 10 , and the locking block 40 is provided with a locking hook 42 for cooperating with the locking slot 11 on the switching block 10 .

[0057] Furthermore, the locking block 40 rotates around the locking shaft 43 to switch between a locking position, an unlocking position and an unhooking position, and the locking block 40 passes through an unlocking position when switching from the locking position to the unhooking position; when the locking block 40 is in the unhooking position, the locking hook 42 disengages from the engagement with the slot 11; when the locking block 40 is in the unlocking position and the locking position, the locking hook 42 engages with the slot 11.

[0058] In this embodiment, when replacing the switching block 10, firstly, the rotating shaft 31 is rotated and switched from the pressing position to the relaxing position, and then the locking block 40 is switched from the locking position to the unlocking position, and then the switching block 10 is pulled out. Before the rotating shaft 31 is rotated and switched from the pressing position to the relaxing position, the locking block 40 needs to be switched to the unlocking position first, so that the first limiter 51 can rotate. In order to prevent the lock hook 42 of the locking block 40 from being separated from the engagement with the slot 11, the unhooking position is set outside the path of the unlocking position and the locking position. When the locking block 40 is in the unlocking position and the locking position, the locking block 40 cannot reach the unhooking position, and the lock hook 42 always keeps in engagement with the slot 11, so as to prevent the switching block 10 from accidentally falling off after losing the clamping effect of the eccentric member 30.

[0059] When the switching block 10 is inserted, the front end of the switching block 10 and the locking hook 42 are wedge-shaped structures. When the switching block 10 is inserted, the locking hook 42 is pushed, so that the locking block 40 switches from the locked position to the unhooked position, and the switching block 10 can be further inserted. When the front end of the switching block 10 and the locking hook 42 lose their function, the locking block 40 is reset to the locked position under the action of the reset spring 41, preliminarily locking the switching block 10, and then the eccentric member 30 is used to clamp the switching block 10.

[0060] An embodiment of the present invention also provides a plug-in mechanism, comprising: a frame body 20, a switching block 10 inserted into a slot 21 of the frame body 20, a rotating shaft 31 rotatably arranged on the frame body 20, an eccentric piece 30 arranged on the rotating shaft 31, and a locking mechanism; the rotating shaft 31 can be rotated and switched around its axis between a clamping position and a loose position; when the rotating shaft 31 is located at the clamping position, the eccentric piece 30 presses the switching block 10 into the slot 21; the rotating shaft 31 is locked in the clamping position by the locking mechanism.

[0061] In one embodiment, an adjustment groove 12 is provided on the end surface of the switching block 10 facing the eccentric member 30 , and an adjustment sheet 13 is installed in the adjustment groove 12 . When the rotating shaft 31 is located at the pressing position, the eccentric member 30 presses the adjustment sheet 13 .

[0062] The switching block 10 on the plug-in mechanism can be replaced. Since the height of the clamping space is fixed, in order to ensure the clamping effect of different types of switching blocks 10, an adjustment groove 12 and adjustment sheets 13 of various thicknesses are provided to fill the side thicknesses of various types of switching blocks 10 to be consistent. Before inserting the switching block 10, an adjustment sheet 13 is provided in the adjustment groove 12 to change the thickness of the switching block 10, so that each time the eccentric piece 30 rotates the same angle, a good clamping effect can be provided to the switching block 10.

[0063] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A component switching device, characterized in that: It includes a frame, a rotating shaft rotatably arranged on the frame, an eccentric piece arranged on the rotating shaft, and a locking mechanism; the frame has a slot for inserting a switching block; The rotating shaft can be rotated and switched around its axis between a clamping position and a loose position; when the rotating shaft is located at the clamping position, a clamping space for clamping the switching block is formed between the eccentric piece and the inner wall of the slot; the rotating shaft is locked at the clamping position by the locking mechanism; The locking mechanism comprises a locking block pivotally connected to the frame body, a first limiting member eccentrically arranged on the rotating shaft, and a second limiting member arranged on the locking block; the locking block can be switched between a locking position and an unlocking position; the locking block is provided with a locking hook for cooperating with a slot on the switching block; the locking block is pivotally connected to the frame body through a locking shaft, the locking block rotates around the locking shaft between a locking position, an unlocking position and an unhooking position, and the locking block passes through an unlocking position when switching from the locking position to the unhooking position; The locking block is connected to a return spring, and the return spring can switch the locking block from the unlocking position to and maintain it in the locking position; When the locking block is in the unhooking position, the locking hook is out of cooperation with the card slot; when the locking block is in the unlocking position and the locking position, the locking hook is in cooperation with the card slot; When the rotating shaft is located at the pressing position, the first limiting member is located at a first predetermined position; when the rotating shaft is located at the relaxing position, the first limiting member is located at a second predetermined position; When the locking block is located at the locking position and the rotating shaft is located at the pressing position, the second limiting member is located on a moving path of the first limiting member from the second predetermined position to the first predetermined position, and the second limiting member abuts against the first limiting member.

2. A component switching device according to claim 1, characterized in that: A wedge-shaped groove bottom matching the shape of the switching block is formed in the slot.

3. A component switching device according to claim 1, characterized in that: The eccentric piece is connected with a handle extending outside the frame body.

4. A component switching device according to claim 1, characterized in that: The frame body comprises a positioning block, a first block and a second block, the positioning block is provided with the slot, the first block and the second block are fixed on the positioning block, and the rotating shaft is rotatably connected to the first block and the second block.

5. A component switching device according to claim 1, characterized in that: The second position-limiting member has a guiding surface and an abutting surface; when the locking block is located at the locking position and the rotating shaft is located at the pressing position, the abutting surface of the second position-limiting member abuts against the first position-limiting member; When the locking block is located at the locking position and the rotating shaft is located at the relaxing position, the guiding surface is located on the moving path of the first limiting member from the first predetermined position to the second predetermined position; when the first limiting member moves from the first predetermined position to the second predetermined position, it contacts and pushes the guiding surface, driving the locking block to switch from the locking position to the unlocking position; When the locking block is in the unlocking position, the guide surface is separated from the moving path of the first limiting member from the first predetermined position to the second predetermined position.

6. A component switching device according to claim 1, characterized in that: The axial direction of the rotating shaft is parallel to the insertion direction of the switching block.

7. A plug-in mechanism, comprising: A frame, a switching block inserted into a slot of the frame, a rotating shaft rotatably arranged on the frame, an eccentric member arranged on the rotating shaft, and a locking mechanism; The rotating shaft can be rotated and switched around its axis between a pressing position and a relaxing position; when the rotating shaft is located at the pressing position, the eccentric piece presses the switching block into the slot; the rotating shaft is locked at the pressing position by the locking mechanism; The locking mechanism comprises a locking block pivotally connected to the frame body, a first limiting member eccentrically arranged on the rotating shaft, and a second limiting member arranged on the locking block; the locking block can be switched between a locking position and an unlocking position; the locking block is provided with a locking hook for cooperating with a slot on the switching block; the locking block is pivotally connected to the frame body through a locking shaft, the locking block rotates around the locking shaft between a locking position, an unlocking position and an unhooking position, and the locking block passes through an unlocking position when switching from the locking position to the unhooking position; The locking block is connected to a return spring, and the return spring can switch the locking block from the unlocking position to and maintain it in the locking position; When the locking block is in the unhooking position, the locking hook is out of cooperation with the card slot; when the locking block is in the unlocking position and the locking position, the locking hook is in cooperation with the card slot; When the rotating shaft is located at the pressing position, the first limiting member is located at a first predetermined position; when the rotating shaft is located at the relaxing position, the first limiting member is located at a second predetermined position; When the locking block is located at the locking position and the rotating shaft is located at the pressing position, the second limiting member is located on a moving path of the first limiting member from the second predetermined position to the first predetermined position, and the second limiting member abuts against the first limiting member.

8. The plug-in mechanism according to claim 7, characterized in that: An adjustment groove is arranged on the end surface of the switching block facing the eccentric member, and an adjustment sheet is installed in the adjustment groove. When the rotating shaft is located at the pressing position, the eccentric member presses the adjustment sheet.

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