A clamping device for assembling a car seat

Abstract

The present invention discloses a clamping device for assembling automobile seats, wherein a group of foot bases and clamping mechanisms are provided for each seat foot of an automobile seat to be assembled, so as to clamp and fix each seat foot individually, so that each group of foot bases and clamping mechanisms can adopt the most optimized clamping position and clamping method according to the actual situation of the corresponding seat foot, so as to ensure the reliability of clamping each seat foot of the automobile seat to be assembled; by synchronously providing positive driving force and reverse driving force to the clamping mechanisms of the first group and the second group through a synchronous transmission mechanism, all the seat feet of the automobile seat to be assembled can be clamped and fixed or loosened at the same time, so as to avoid the problem that some seat feet of the automobile seat to be assembled are clamped and some seat feet are not clamped, resulting in poor clamping reliability; therefore, the present invention has the advantages of high clamping reliability and convenient operation.

Description

Technical Field

[0001] The invention relates to a clamping device for assembling automobile seats, which is used for assembling seats on a production line. Background Art

[0002] When assembling the front and middle row seats on the automobile seat production line, the seat legs need to be fixed before the seats can be assembled. Otherwise, the seats will shake during installation, and in severe cases, the seats will tip over, causing damage to the seat products and personal injury.

[0003] At present, common automobile seat assembly fixtures generally need to be equipped with pneumatic devices to loosen or clamp the seat legs, and the pneumatic devices are only used for workstations that need to remove or install seat legs. Other workstations do not need them. Equipping automobile seat fixtures with pneumatic devices not only increases production costs, but also makes the layout of gas pipelines redundant in other processes that do not require the use of pneumatic devices, inevitably increasing the layout of seat assembly lines, maintenance difficulty, and noise.

[0004] When assembling car seats, one fixture can only be used to assemble seats with the same legs of a certain type. It is not possible to assemble seats with different types of legs on the same fixture as required. The fixture utilization rate is low, and more fixtures are often developed, increasing production costs. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a clamping device for assembling automobile seats.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0007] A clamping device for assembling a car seat, characterized in that: the clamping device for assembling a car seat is provided with a base, a clamping mechanism, a synchronous transmission mechanism and an operating mechanism;

[0008] The base is provided with a foot base corresponding to each seat foot of the automobile seat to be assembled, and each foot base is installed with a clamping mechanism, so that: when in a clamping state, each clamping mechanism can clamp and fix the corresponding seat foot on the corresponding foot base, and the relative position of each seat foot after being clamped and fixed is the same as the relative installation position on the automobile seat to be assembled;

[0009] Wherein, each of the clamping mechanisms is divided into two groups, the clamping mechanisms of the first group are in the clamping state when subjected to the positive driving force, and are in the loosening state when subjected to the reverse driving force; the clamping mechanisms of the second group are in the clamping state when subjected to the reverse driving force, and are in the loosening state when subjected to the positive driving force; the positive driving force and the reverse driving force are in opposite directions, and the clamping mechanisms can loosen the clamping fixation of the seat legs when in the loosening state;

[0010] Under the control of the operating mechanism, the synchronous transmission mechanism can provide the forward driving force for the clamping mechanism of the first group and simultaneously provide the reverse driving force for the clamping mechanism of the second group, or the synchronous transmission mechanism can provide the reverse driving force for the clamping mechanism of the first group and simultaneously provide the forward driving force for the clamping mechanism of the second group.

[0011] As a preferred embodiment of the present invention: the synchronous transmission mechanism is provided with a main shaft, a cam, a first push plate and a second push plate, and a first driving rod is provided corresponding to each clamping mechanism of the first group, and a second driving rod is provided corresponding to each clamping mechanism of the second group;

[0012] The first group, the second push plate, the main shaft, the first push plate and the second group are arranged in sequence along the direction of the reverse driving force, and the second push plate, the main shaft and the first push plate are all perpendicular to the reverse driving force; the main shaft is rotatably installed in the main shaft support, the cam has an elliptical cam edge, and the cam is fixedly installed on the main shaft so that the elliptical cam edge contacts the first push plate and the second push plate respectively; the first end of the first driving rod is fixed to the first push plate, and the second end of the first driving rod passes through the second push plate through-hole on the second push plate and is connected to the driving end of the corresponding clamping mechanism; the first end of the second driving rod is fixed to the second push plate, and the second end of the second driving rod passes through the first push plate through-hole on the first push plate and is connected to the driving end of the corresponding clamping mechanism;

[0013] and a second compression spring which is mounted on the second drive rod and is in a state of being compressed and pressed against the first drive rod and the second push plate; and a second compression spring which is mounted on the second drive rod and is in a state of being compressed and pressed against the second drive rod and the first push plate; so that: under the action of the first compression spring and the second compression spring, the two short axis end points of the elliptical cam edge are respectively in contact with the first push plate and the second push plate, and the second end of the first driving rod applies the positive driving force to the driving end of the corresponding clamping mechanism of the first group, and at the same time, the second end of the second driving rod applies the reverse driving force to the driving end of the corresponding clamping mechanism of the second group, so that each of the clamping mechanisms is in the clamping state;

[0014] Wherein, each of the support foot base, the main shaft support, the first rod support and the second rod support are relatively fixed;

[0015] The operating mechanism can drive the main shaft and the cam to rotate together, so as to drive the first push plate and the first driving rod to overcome the force of the first compression spring and move together in the direction of the reverse driving force, and at the same time drive the second push plate and the second driving rod to overcome the force of the second compression spring and move together in the direction of the forward driving force; and, when the two long axis end points of the elliptical cam edge are in contact with the first push plate and the second push plate respectively, the operating mechanism can lock the rotation angle of the main shaft, so that: the second end of the first driving rod applies the reverse driving force to the driving end of the corresponding clamping mechanism of the first group, and at the same time, the second end of the second driving rod applies the forward driving force to the driving end of the corresponding clamping mechanism of the second group, so that each of the clamping mechanisms is in the released state.

[0016] As a preferred embodiment of the present invention: the synchronous transmission mechanism is provided with at least two cams.

[0017] As a preferred embodiment of the present invention: among any two adjacent first driving rods, one of the first driving rods is sleeved with the first compression spring; among any two adjacent second driving rods, one of the second driving rods is sleeved with the second compression spring.

[0018] As a preferred embodiment of the present invention: each of the support leg bases is provided with a base through-hole, and the extension direction of the base through-hole is parallel to the direction of the forward driving force and the reverse driving force; the second end of the first driving rod sequentially passes through the second push plate through-hole and the base through-hole of the corresponding support leg base and then is connected to the driving end of the corresponding clamping mechanism, and the first driving rod can slide in the base through-hole; the second end of the second driving rod sequentially passes through the first push plate through-hole and the base through-hole of the corresponding support leg base and then is connected to the driving end of the corresponding clamping mechanism, and the second driving rod can slide in the base through-hole.

[0019] As a preferred embodiment of the present invention: the operating mechanism is provided with an operating lever, a limit pin, a limit slot plate, a pawl and a ratchet; the ratchet and the limit slot plate are relatively fixed with the main shaft support, the limit slot plate is provided with an arc-shaped limit slot, the center of which falls on the central axis of the main shaft, the operating lever is fixedly connected to the main shaft, one end of the limit pin is fixedly connected to the operating lever, and the other end extends into the arc-shaped limit slot of the limit slot plate, so that: the operating lever can drive the main shaft and the cam to rotate together, and at the same time drive the limit pin to slide along the arc-shaped limit slot, and the rotation angle of the main shaft and the cam is limited by the arc-shaped limit slot, when the limit pin slides to one end of the arc-shaped limit slot, the cam rotates to an angle at which the two major axis endpoints are respectively in contact with the first push plate and the second push plate, and when the limit pin slides to the other end of the arc-shaped limit slot, the cam rotates to an angle at which the two minor axis endpoints are respectively in contact with the first push plate and the second push plate;

[0020] Furthermore, the pawl is hinged on the limit pin, and the pawl is meshed with the ratchet wheel, so that the rotation angle of the main shaft and the cam can be locked by the meshed pawl and ratchet wheel.

[0021] As a preferred embodiment of the present invention: the base is also provided with a bottom plate; each of the support leg bases, the spindle support, the first rod support, the second rod support, the ratchet and the limit slot plate are fixed on the bottom plate, and a cam slot is provided on the bottom plate for each of the cams, so that the cam rotates in the corresponding cam slot.

[0022] As a preferred embodiment of the present invention: the clamping mechanism is provided with a bracket, an axle pin, a swing arm, a connecting block, a pressing block and a supporting platform, the axle pin is fixed to the supporting foot base through the bracket, one end of the swing arm is fixedly connected to one end of the connecting block, and the fixed connecting end of the swing arm and the connecting block is rotatably mounted on the axle pin, the other end of the swing arm is provided with a slide groove and serves as the driving end of the clamping mechanism, the pressing block is fixed to the other end of the connecting block, the supporting platform is fixed to the supporting foot base, one of the pressing block and the supporting platform is provided with a positioning recessed hole, and the other is provided with a positioning boss;

[0023] For the clamping mechanism of the first group, the driving end of the clamping mechanism is connected to the second end of the first driving rod in the following manner: a first pin is fixed to the second end of the first driving rod, and the first pin extends into a slide groove of the swing arm of the clamping mechanism and can slide along the slide groove;

[0024] For the clamping mechanism of the second group, the driving end of the clamping mechanism is connected to the second end of the second driving rod in the following manner: a second pin is fixed to the second end of the second driving rod, and the second pin extends into the slide groove of the swing arm of the clamping mechanism and can slide along the slide groove;

[0025] So that:

[0026] The pressure blocks belonging to the first group and the second group can be driven by the first driving rod and the second driving rod to rotate around the corresponding axle pins respectively until the two short axis end points of the elliptical cam edge contact the first push plate and the second push plate respectively, each of the positioning bosses is inserted into the corresponding positioning recessed holes, and each of the pressure blocks is pressed on the corresponding supporting platform, so that each of the clamping mechanisms is in the clamping state.

[0027] As a preferred embodiment of the present invention: the pressing block of the clamping mechanism is fixed to the connecting block by bolts, and a plurality of gaskets are arranged between the pressing block and the connecting block.

[0028] As a preferred embodiment of the present invention: the clamping device for assembling a car seat is used for car seats with various types of legs to be assembled, and the clamping device for assembling a car seat is provided with a set of leg bases and clamping mechanisms for each type of the car seat to be assembled, that is, the base is provided with a leg base corresponding to each seat leg of each type of the car seat to be assembled, and each leg base is equipped with a clamping mechanism.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] First, the present invention provides a set of foot bases and clamping mechanisms for each seat foot of the automobile seat to be assembled, so as to clamp and fix each seat foot individually, so that each set of foot bases and clamping mechanisms can adopt the most optimized clamping position and clamping method according to the actual situation of the corresponding seat foot, so as to ensure the reliability of clamping each seat foot of the automobile seat to be assembled;

[0031] Furthermore, the present invention provides the forward driving force and the reverse driving force to the first group and the second group of clamping mechanisms synchronously through the synchronous transmission mechanism, so that all the seat legs of the automobile seat to be assembled can be clamped or loosened at the same time, thereby avoiding the problem that some seat legs of the automobile seat to be assembled are clamped and some are not clamped, resulting in poor clamping reliability;

[0032] Moreover, the present invention uses the operating mechanism to uniformly control the clamping state and the loosening state of all the clamping mechanisms through the synchronous transmission mechanism, which is more convenient to operate. With one action, all the seat legs of the automobile seat to be assembled can be clamped or loosened at the same time.

[0033] Therefore, the present invention has the advantages of high clamping reliability and convenient operation.

[0034] Second, the synchronous transmission mechanism adopted by the present invention can provide the first group of clamping mechanisms with the positive driving force required for the clamping state by the second compression spring through the first push plate and the first drive rod, and can also provide the second group of clamping mechanisms with the reverse driving force required for the clamping state by the first compression spring through the second push plate and the second drive rod. Therefore, the present invention does not need to use a pneumatic device to provide the clamping driving force, thus avoiding the problems of difficult layout and maintenance, redundancy, high noise and high cost caused by the use of pneumatic devices in the prior art;

[0035] Furthermore, when the clamping mechanism changes between the clamping state and the loosening state, the first push plate and the second push plate are driven to move by the elliptical cam edge of the cam, which can make the transmission of the synchronous transmission mechanism smoother and more efficient.

[0036] Third, the operating mechanism adopted in the present invention can drive the main shaft and the cam to rotate together by pulling the operating lever, which is very convenient to operate. The cooperation between the pawl and the ratchet can lock the rotation angle of the main shaft and the cam. When the clamping mechanism is in a loosened state, it is necessary to pull up the pawl by pulling the operating lever to separate the pawl from the ratchet. Only then can the main shaft and the cam be driven to rotate by the operating lever, thereby preventing the operating lever from automatically reversing, thereby effectively ensuring the safety of the staff.

[0037] Fourthly, the clamping mechanism used in the present invention can ensure the reliability of clamping the seat legs, and its structure is suitable for installation at different positions of the leg base, and can be suitable for clamping seat legs of different structures, and has the advantage of a wide range of applications;

[0038] Furthermore, the clamping mechanism adopted in the present invention is clamped on the bottom plate of the seat legs, rather than being clamped on the flanges on both sides of the bottom plate of the seat legs as in the prior art, thereby avoiding the problem of low assembly accuracy of the entire chair due to the low processing accuracy of the flanges of the seat legs relative to the bottom plate. Therefore, the present invention has a high clamping position accuracy for the seat legs, and can ensure that the relative position of each seat leg after being clamped and fixed is the same as the relative installation position on the car seat to be assembled, so as to improve the assembly accuracy of the car seat.

[0039] Fifth, the bracket, axle pin, swing arm, connecting block, pressing block, pedestal, bolts and gaskets constituting the clamping mechanism of the present invention can all be standardized, and can be conveniently replaced when any component is damaged, effectively extending the service life of the present invention;

[0040] Furthermore, when the pressing block is worn due to long-term use, the wear of the pressing block can be compensated by adjusting the number of gaskets.

[0041] Sixth, the present invention can be suitable for the assembly of various types of automobile seats to be assembled by setting the number and arrangement positions of the support bases and the clamping mechanisms, thereby improving the utilization rate of the clamping devices, reducing the number of clamping devices developed, and reducing the assembly cost of automobile seats. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0043] Figure 1 It is a schematic diagram of the three-dimensional structure of the clamping device for assembling a car seat of the present invention;

[0044] Figure 2 A top view of the clamping device for assembling a vehicle seat of the present invention;

[0045] Figure 3 It is a schematic diagram of the present invention when the clamping mechanism is in a released state;

[0046] Figure 4 It is a schematic diagram of the present invention when the clamping mechanism is in a released state and the seat support leg has been placed;

[0047] Figure 5 It is a schematic diagram of the present invention when the clamping mechanism is in a clamping state;

[0048] Figure 6 It is a structural schematic diagram of the operating mechanism in the present invention. DETAILED DESCRIPTION

[0049] The utility model is further described below in conjunction with embodiments:

[0050] Embodiment 1

[0051] like Figures 1 to 6 As shown, the present invention discloses a clamping device for assembling a car seat, which is provided with a base 1, a clamping mechanism 2, a synchronous transmission mechanism 3 and an operating mechanism 4;

[0052] The base 1 is provided with a foot base 1-1 corresponding to each seat foot 5 of the automobile seat to be assembled, and each of the foot bases 1-1 is installed with a clamping mechanism 2, so that: when in a clamped state, each of the clamping mechanisms 2 can clamp and fix the corresponding seat foot 5 on the corresponding foot base 1-1, and the relative position of each seat foot 5 after being clamped and fixed is the same as the relative installation position on the automobile seat to be assembled; that is: each group of foot bases 1-1 and clamping mechanisms 2 clamps and fixes a seat foot 5 separately, so that each group of foot bases 1-1 and clamping mechanisms 2 can adopt the most optimized clamping position and clamping method according to the actual situation of the corresponding seat foot 5, such as Figure 1 As shown, eight different seat feet 5 are equipped with foot bases 1 - 1 of different heights and different clamping positions.

[0053] The clamping mechanisms 2 are divided into two groups. The clamping mechanisms 2 of the first group G1 are all subjected to the positive driving force F 正 When in the clamping state, it is subjected to the reverse driving force F 反 The clamping mechanisms 2 of the second group G2 are all in a loose state when subjected to the reverse driving force F 反 When in the clamping state, the positive driving force F 正 When in action, it is in a released state; the positive driving force F 正 and reverse driving force F 反 In the opposite direction, the clamping mechanism 2 can release the clamping fixation of the seat foot 5 when in the released state;

[0054] Under the control of the operating mechanism 4, the synchronous transmission mechanism 3 can provide the positive driving force F for the clamping mechanism 2 of the first group G1. 正 At the same time, the reverse driving force F is provided to the clamping mechanism 2 of the second group G2. 反 , so as to clamp and fix all the seat legs 5 of the automobile seat to be assembled at the same time, or the synchronous transmission mechanism 3 can provide the reverse driving force F for the clamping mechanism 2 of the first group G1反 At the same time, the positive driving force F is provided to the clamping mechanism 2 of the second group G2. 正 , so as to simultaneously release the clamping fixation of all the seat legs 5 of the automobile seat to be assembled.

[0055] Embodiment 2

[0056] On the basis of the above-mentioned embodiment 1, this embodiment 2 also adopts the following preferred structure:

[0057] The synchronous transmission mechanism 3 is provided with a main shaft 3-1, a cam 3-2, a first push plate 3-3 and a second push plate 3-4, and a first driving rod 3-5 is provided corresponding to each clamping mechanism 2 of the first group G1, and a second driving rod 3-6 is provided corresponding to each clamping mechanism 2 of the second group G2;

[0058] The first group G1, the second push plate 3-4, the main shaft 3-1, the first push plate 3-3 and the second group G2 are driven by the reverse driving force F 反 The second push plate 3-4, the main shaft 3-1 and the first push plate 3-3 are arranged in sequence in the direction of the reverse driving force F 反 ; The main shaft 3-1 is rotatably installed in the main shaft support 3-7, and the cam 3-2 has an elliptical cam edge 3-2a, and the cam 3-2 is fixedly installed on the main shaft 3-1, so that the elliptical cam edge 3-2a contacts the first push plate 3-3 and the second push plate 3-4 respectively; the first end of the first driving rod 3-5 is fixed to the first push plate 3-3, and the second end of the first driving rod 3-5 passes through the second push plate through hole 3-4a on the second push plate 3-4 and is connected to the driving end of the corresponding clamping mechanism 2; the first end of the second driving rod 3-6 is fixed to the second push plate 3-4, and the second end of the second driving rod 3-6 passes through the first push plate through hole 3-3a on the first push plate 3-3 and is connected to the driving end of the corresponding clamping mechanism 2;

[0059] In addition, at least one of the first driving rods 3-5 is slidably installed in the first rod support 3-8, and the first driving rod 3-5 is covered with a first compression spring 3-9, the first compression spring 3-9 is in a compressed state and presses against the first rod support 3-8 and the second push plate 3-4; at least one of the second driving rods 3-6 is slidably installed in the second rod support 3-10, and the second driving rod 3-6 is covered with a second compression spring 3-11, the second compression spring 3-11 is in a compressed state and presses against the second rod support 3-10 and the first push plate 3-3; so that: under the action of the first compression spring 3-9 and the second compression spring 3-11, the two short axis end points 3-2b of the elliptical cam edge 3-2a are respectively in contact with the first push plate 3-3 and the second push plate 3-4, and the second end of the first driving rod 3-5 applies the positive driving force F to the driving end of the corresponding clamping mechanism 2 of the first group G1. 正 At the same time, the second end of the second driving rod 3-6 applies the reverse driving force F to the driving end of the corresponding clamping mechanism 2 of the second group G2. 反 , so that each of the clamping mechanisms 2 is in the clamping state;

[0060] Wherein, each of the support foot base 1-1, the main shaft support 3-7, the first rod support 3-8 and the second rod support 3-10 is relatively fixed;

[0061] The operating mechanism 4 can drive the main shaft 3-1 and the cam 3-2 to rotate together, so as to drive the first push plate 3-3 and the first driving rod 3-5 to overcome the force of the first compression spring 3-9 and drive together along the reverse driving force F 反 The second push plate 3-4 and the second drive rod 3-6 are driven to overcome the force of the second compression spring 3-11 and move in the positive driving force F 正 and when the two long axis endpoints 3-2c of the elliptical cam edge 3-2a are in contact with the first push plate 3-3 and the second push plate 3-4 respectively, the operating mechanism 4 can lock the rotation angle of the main shaft 3-1, so that: the second end of the first driving rod 3-5 applies the reverse driving force F to the driving end of the corresponding clamping mechanism 2 of the first group G1 反 At the same time, the second end of the second driving rod 3-6 applies the positive driving force F to the driving end of the corresponding clamping mechanism 2 of the second group G2. 正 , so that each of the clamping mechanisms 2 is in the released state.

[0062] The usage and working principle of the present invention are as follows:

[0063] When car seat assembly is required,

[0064] See also Figure 3 , the staff first drives the main shaft 3-1 and the cam 3-2 to rotate clockwise together through the operating mechanism 4. During the rotation, the first push plate 3-3 and the second push plate 3-4 are pushed by the cam 3-2 to move away from each other, so that the first compression spring 3-9 and the second compression spring 3-11 are further compressed, and the elliptical cam edge 3-2a of the cam 3-2 maintains contact with the first push plate 3-3 and the second push plate 3-4, and the contact point gradually changes from the short axis end point 3-2b of the elliptical cam edge 3-2a to the long axis end point 3-2c; thereby, the first push plate 3-3 applies the reverse driving force F to the driving end of the corresponding clamping mechanism 2 of the first group G1 through the first driving rod 3-5. 反 At the same time, the second push plate 3-4 applies the positive driving force F to the driving end of the corresponding clamping mechanism 2 of the second group G2 through the second driving rod 3-6. 正 , so that each of the clamping mechanisms 2 is in the released state.

[0065] See also Figure 4 Since the operating mechanism 4 can lock the rotation angle of the main shaft 3-1 when the two long axis end points 3-2c of the elliptical cam edge 3-2a are in contact with the first push plate 3-3 and the second push plate 3-4 respectively, when each of the clamping mechanisms 2 is in the released state, the staff can conveniently and safely place each seat support 5 of the car seat to be assembled on the corresponding support base 1-1.

[0066] See also Figure 5 Then, the staff controls the operating mechanism 4 to lock the rotation angle of the main shaft 3-1, and drives the main shaft 3-1 and the cam 3-2 to rotate counterclockwise through the operating mechanism 4. During the rotation, due to the action of the first compression spring 3-9 and the second compression spring 3-11, the elliptical cam edge 3-2a of the cam 3-2 maintains contact with the first push plate 3-3 and the second push plate 3-4, and the contact point gradually changes from the long axis end point 3-2c of the elliptical cam edge 3-2a to the short axis end point 3-2b, so that the compression amount of the first compression spring 3-9 and the second compression spring 3-11 is reduced, and the first push plate 3-3 and the second push plate 3-4 are pushed by the first compression spring 3-9 and the second compression spring 3-11 to move in a direction close to each other; thereby, the first push plate 3-3 applies the positive driving force F to the driving end of the corresponding clamping mechanism 2 of the first group G1 through the first driving rod 3-5. 正 At the same time, the second push plate 3-4 applies the reverse driving force F to the driving end of the corresponding clamping mechanism 2 of the second group G2 through the second driving rod 3-6. 反, so that each of the clamping mechanisms 2 is in the clamping state, so as to clamp and fix each seat leg 5 placed on the leg base 1-1. At this point, each seat leg 5 of the automobile seat to be assembled has been clamped and fixed by the clamping device for automobile seat assembly of the present invention, and the relative position of each seat leg 5 after being clamped and fixed is the same as the relative installation position on the automobile seat to be assembled, and the staff can continue to assemble other parts of the automobile seat to be assembled.

[0067] See also Figure 3 Finally, after the assembly of the automobile seat to be assembled is completed, the staff drives the main shaft 3-1 and the cam 3-2 to rotate clockwise again through the operating mechanism 4, so that each of the clamping mechanisms 2 is in the loosened state, and the assembled automobile seat can be removed from the automobile seat assembly clamping device of the present invention.

[0068] Embodiment 3

[0069] On the basis of the above-mentioned embodiment 2, this embodiment 3 also adopts the following preferred structure:

[0070] like Figure 1 and Figure 2 As shown, the synchronous transmission mechanism 3 is provided with at least two cams 3-2, which can improve the stability when the cam 3-2 pushes the first push plate 3-3 and the second push plate 3-4 to move away from each other.

[0071] Embodiment 4

[0072] On the basis of the above-mentioned embodiment 2, this embodiment 4 also adopts the following preferred structure:

[0073] like Figure 2 As shown, among any two adjacent first driving rods 3-5, one of the first driving rods 3-5 is sleeved with the first compression spring 3-9; among any two adjacent second driving rods 3-6, one of the second driving rods 3-6 is sleeved with the second compression spring 3-11.

[0074] Embodiment 5

[0075] On the basis of the above-mentioned embodiment 2, this embodiment 5 also adopts the following preferred structure:

[0076] like Figure 3 As shown, each of the support bases 1-1 is provided with a base through hole 1-1a, and the extension direction of the base through hole 1-1a is parallel to the positive driving force F 正 and reverse driving force F 反direction; the second end of the first driving rod 3-5 passes through the second push plate through hole 3-4a and the base through hole 1-1a of the corresponding support foot base 1-1 in sequence, and then is connected to the driving end of the corresponding clamping mechanism 2, and the first driving rod 3-5 can slide in the base through hole 1-1a; the second end of the second driving rod 3-6 passes through the first push plate through hole 3-3a and the base through hole 1-1a of the corresponding support foot base 1-1 in sequence, and then is connected to the driving end of the corresponding clamping mechanism 2, and the second driving rod 3-6 can slide in the base through hole 1-1a. Thus, the shaking of the second end of the first driving rod 3-5 and the second end of the second driving rod 3-6 can be reduced, and the resistance encountered by the first driving rod 3-5 and the second driving rod 3-6 when driving the clamping mechanism 2 can be reduced.

[0077] Embodiment 6

[0078] On the basis of the above-mentioned embodiment 2, this embodiment 6 also adopts the following preferred structure:

[0079] like Figures 3 to 6 As shown, the operating mechanism 4 is provided with an operating lever 4-1, a limiting pin 4-2, a limiting slot plate 4-3, a pawl 4-4 and a ratchet 4-5; the ratchet 4-5 and the limiting slot plate 4-3 are relatively fixed to the spindle support 3-7, the limiting slot plate 4-3 is provided with an arc-shaped limiting slot 4-3a, the center of which falls on the central axis of the spindle 3-1, the operating lever 4-1 is fixedly connected to the spindle 3-1, One end of the limit pin 4-2 is fixedly connected to the operating rod 4-1, and the other end extends into the arc-shaped limit groove 4-3a of the limit groove plate 4-3, so that: the operating rod 4-1 can drive the main shaft 3-1 and the cam 3-2 to rotate together, and at the same time drive the limit pin 4-2 to slide along the arc-shaped limit groove 4-3a, and the rotation angle of the main shaft 3-1 and the cam 3-2 is limited by the arc-shaped limit groove 4-3a, see Figure 3 When the limit pin 4-2 slides to one end of the arc-shaped limit groove 4-3a, the cam 3-2 rotates to an angle at which the two long axis end points 3-2c are in contact with the first push plate 3-3 and the second push plate 3-4, see Figure 5 and Figure 6 When the limit pin 4-2 slides to the other end of the arc-shaped limit groove 4-3a, the cam 3-2 rotates to an angle where the two short axis end points 3-2b are in contact with the first push plate 3-3 and the second push plate 3-4 respectively;

[0080] Furthermore, the pawl 4-4 is hinged on the limit pin 4-2, and the pawl 4-4 is meshed with the ratchet 4-5, so that: the rotation angle of the main shaft 3-1 and the cam 3-2 can be locked by the meshing pawl 4-4 and the ratchet 4-5.

[0081] Thus, by pulling the operating lever 4-1, the main shaft 3-1 and the cam 3-2 can be driven to rotate together, and the operation is very convenient. The cooperation between the pawl 4-4 and the ratchet 4-5 can lock the rotation angle of the main shaft 3-1 and the cam 3-2. When the clamping mechanism 2 is in a loosened state, it is necessary to pull up the pawl 4-4 by pulling the operating lever 4-1 clockwise to separate the pawl 4-4 from the ratchet 4-5. Only then can the main shaft 3-1 and the cam 3-2 be driven to rotate by the operating lever 4-1, thereby preventing the operating lever 4-1 from automatically reversing, thereby effectively ensuring the safety of the staff.

[0082] In addition, the operating mechanism 4 may be further provided with a return torsion spring 4-6, which is sleeved on the limit pin 4-2, and the two ends of the return torsion spring 4-6 are respectively fixedly connected to the operating rod 4-1 and the ratchet 4-4, so that:

[0083] In addition, when the automobile seat assembly clamping device of the present invention is not in use, the joystick 4 - 1 can be laid flat, so that the overall size of the clamping device is small, which is convenient for transportation and avoids bumps and damages during movement.

[0084] Embodiment 7

[0085] On the basis of the above-mentioned embodiment 6, this embodiment 7 also adopts the following preferred structure:

[0086] like Figures 1 to 6 As shown, the base 1 is also provided with a bottom plate 1-2; each of the support foot bases 1-1, the spindle support 3-7, the first rod support 3-8, the second rod support 3-10, the ratchet 4-5 and the limit slot plate 4-3 are all fixed on the bottom plate 1-2, and a cam slot 1-2a is provided on the bottom plate 1-2 for each of the cams 3-2, so that the cam 3-2 rotates in the corresponding cam slot 1-2a.

[0087] Embodiment 8

[0088] Based on any one of the above-mentioned embodiments 2 to 7, this embodiment 8 also adopts the following preferred structure:

[0089] like Figures 1 to 6As shown, the clamping mechanism 2 is provided with a bracket 2-1, an axle pin 2-2, a swing arm 2-3, a connecting block 2-4, a pressing block 2-5 and a supporting platform 2-6, the axle pin 2-2 is fixed to the support foot base 1-1 through the bracket 2-1, one end of the swing arm 2-3 is fixedly connected to one end of the connecting block 2-4, and the fixed connection end of the swing arm 2-3 and the connecting block 2-4 is rotatably mounted on the axle pin 2-2, the other end of the swing arm 2-3 is provided with a slide groove 2-3a and serves as the driving end of the clamping mechanism 2, the pressing block 2-5 is fixed to the other end of the connecting block 2-4, the supporting platform 2-6 is fixed to the support foot base 1-1, one of the pressing block 2-5 and the supporting platform 2-6 is provided with a positioning recessed hole 2-5a, and the other is provided with a positioning boss 2-61;

[0090] For the clamping mechanism 2 of the first group G1, the driving end of the clamping mechanism 2 is connected to the second end of the first driving rod 3-5 in the following manner: a first pin is fixed to the second end of the first driving rod 3-5, and the first pin extends into the slide groove 2-3a of the swing arm 2-3 of the clamping mechanism 2 and can slide along the slide groove 2-3a;

[0091] For the clamping mechanism 2 of the second group G2, the driving end of the clamping mechanism 2 is connected to the second end of the second driving rod 3-6 in the following manner: a second pin 2-9 is fixed to the second end of the second driving rod 3-6, and the second pin 2-9 extends into the slide groove 2-3a of the swing arm 2-3 of the clamping mechanism 2 and can slide along the slide groove 2-3a;

[0092] So that:

[0093] The pressure blocks 2-5 belonging to the first group G1 and the second group G2 can be driven by the first driving rod 3-5 and the second driving rod 3-6 to rotate around the corresponding axle pin 2-2 respectively until the two short axis end points 3-2b of the elliptical cam edge 3-2a contact the first push plate 3-3 and the second push plate 3-4 respectively, each of the positioning bosses 2-61 is inserted into the corresponding positioning recessed hole 2-5a, and each of the pressure blocks 2-5 is pressed on the corresponding supporting platform 2-6, so that each of the clamping mechanisms 2 is in the clamping state.

[0094] Thus, see Figure 4When the automobile seat to be assembled is assembled, when the clamping mechanism 2 is in a loosened state, the bottom plate 5-1 of each seat leg 5 is placed on the support platform 2-6 fixed to the corresponding leg base 1-1, so that after the clamping mechanism 2 is controlled to enter the clamping state, the positioning boss 2-61 passes through the mounting hole 5-1a on the bottom plate 5-1 of the seat leg 5 and then is inserted into the corresponding positioning recessed hole 2-5a, and the bottom plate 5-1 of the seat leg 5 is clamped and fixed between the pressing block 2-5 and the support platform 2-6.

[0095] Embodiment 9

[0096] On the basis of the above-mentioned embodiment 8, this embodiment 9 also adopts the following preferred structure:

[0097] like Figure 3 As shown, the pressing block 2-5 of the clamping mechanism 2 is fixed to the connecting block 2-4 by bolts 2-7, and a plurality of gaskets 2-8 are provided between the pressing block 2-5 and the connecting block 2-4. Therefore, when the pressing block 2-5 is worn due to long-term use, the wear of the pressing block 2-5 can be compensated by adjusting the number of gaskets 2-8.

[0098] Embodiment 10

[0099] Based on any one of the above embodiments 1 to 9, this embodiment 10 further adopts the following preferred structure:

[0100] like Figures 1 to 6 As shown, the clamping device for assembling a car seat is used for car seats with various types of legs to be assembled, and the clamping device for assembling a car seat is provided with a set of leg bases 1-1 and clamping mechanisms 2 for each type of the car seat to be assembled, that is, the base 1 is provided with a leg base 1-1 corresponding to each seat leg 5 of each type of the car seat to be assembled, and each leg base 1-1 is equipped with a clamping mechanism 2. For example: Figure 1 The illustrated clamping device for assembling a vehicle seat is used for two types of vehicle seats to be assembled. Each type of vehicle seat to be assembled has four seat legs 5 , so eight leg bases 1 - 1 and eight clamping mechanisms 2 are provided.

[0101] The present invention is not limited to the above-mentioned specific implementation modes. According to the above-mentioned contents, in accordance with the common technical knowledge and customary means in the field, without departing from the above-mentioned basic technical ideas of the present invention, the present invention can also make other various forms of equivalent modifications, replacements or changes, all of which fall within the protection scope of the present invention.

Claims

1. A clamping device for assembling a car seat, characterized in that: The clamping device for assembling a car seat is provided with a base (1), a clamping mechanism (2), a synchronous transmission mechanism (3) and an operating mechanism (4); The base (1) is provided with a foot base (1-1) corresponding to each seat foot (5) of the automobile seat to be assembled, and each foot base (1-1) is installed with a clamping mechanism (2), so that: when in a clamping state, each clamping mechanism (2) can clamp and fix the corresponding seat foot (5) on the corresponding foot base (1-1), and the relative position of each seat foot (5) after being clamped and fixed is the same as the relative installation position on the automobile seat to be assembled; Each of the clamping mechanisms (2) is divided into two groups. The clamping mechanisms (2) of the first group (G1) are all subjected to a positive driving force (F 正 ) is in the clamping state, and when subjected to the reverse driving force (F 反 ) is in a loose state when the second group (G2) of clamping mechanisms (2) are all in a loose state when the reverse driving force (F 反 ) is in the clamping state, and when it is subjected to the positive driving force (F 正 ) acts in a released state; the positive driving force (F 正 ) and reverse driving force (F 反 ), the clamping mechanism (2) is capable of releasing the clamping fixation of the seat support foot (5) when in the released state; Under the control of the operating mechanism (4), the synchronous transmission mechanism (3) is capable of providing the positive driving force (F) for the clamping mechanism (2) of the first group (G1). 正 ) and simultaneously provides the reverse driving force (F) for the clamping mechanism (2) of the second group (G2) 反 ), or, the synchronous transmission mechanism (3) is capable of providing the reverse driving force (F) for the clamping mechanism (2) of the first group (G1) 反 ) and simultaneously provides the positive driving force (F) for the clamping mechanism (2) of the second group (G2) 正 ); The synchronous transmission mechanism (3) is provided with a main shaft (3-1), a cam (3-2), a first push plate (3-3) and a second push plate (3-4), and is provided with a first driving rod (3-5) corresponding to each clamping mechanism (2) of the first group (G1), and is provided with a second driving rod (3-6) corresponding to each clamping mechanism (2) of the second group (G2); The first group (G1), the second push plate (3-4), the main shaft (3-1), the first push plate (3-3) and the second group (G2) are arranged along the reverse driving force (F 反 ), and the second push plate (3-4), the main shaft (3-1) and the first push plate (3-3) are all perpendicular to the reverse driving force (F 反 ); the main shaft (3-1) is rotatably mounted in the main shaft support (3-7); the cam (3-2) has an elliptical cam edge (3-2a); the cam (3-2) is fixedly mounted on the main shaft (3-1) so that the elliptical cam edge (3-2a) contacts the first push plate (3-3) and the second push plate (3-4) respectively; the first end of the first driving rod (3-5) is fixed to the first push plate (3-3); the second end of the first driving rod (3-5) passes through the second push plate through hole (3-4a) on the second push plate (3-4) and is connected to the driving end of the corresponding clamping mechanism (2); the first end of the second driving rod (3-6) is fixed to the second push plate (3-4); the second end of the second driving rod (3-6) passes through the first push plate through hole (3-3a) on the first push plate (3-3) and is connected to the driving end of the corresponding clamping mechanism (2); Furthermore, at least one of the first driving rods (3-5) is slidably mounted in the first rod support (3-8), and the first driving rod (3-5) is sleeved with a first compression spring (3-9), and the first compression spring (3-9) is in a compressed state and abuts between the first rod support (3-8) and the second push plate (3-4); at least one of the second driving rods (3-6) is slidably mounted in the second rod support (3-10), and the second driving rod (3-6) is sleeved with a second compression spring (3-11), and the second compression spring The spring (3-11) is in a compressed state and abuts between the second rod support (3-10) and the first push plate (3-3); so that: under the action of the first compression spring (3-9) and the second compression spring (3-11), the two short axis end points (3-2b) of the elliptical cam edge (3-2a) are in contact with the first push plate (3-3) and the second push plate (3-4) respectively, and the second end of the first driving rod (3-5) applies the positive driving force (F) to the driving end of the corresponding clamping mechanism (2) of the first group (G1). 正 ), while the second end of the second driving rod (3-6) applies the reverse driving force (F) to the driving end of the corresponding clamping mechanism (2) of the second group (G2). 反 ), so that each of the clamping mechanisms (2) is in the clamping state; Wherein, each of the support foot base (1-1), the main shaft support (3-7), the first rod support (3-8) and the second rod support (3-10) are relatively fixed; The operating mechanism (4) can drive the main shaft (3-1) and the cam (3-2) to rotate together, so as to drive the first push plate (3-3) and the first driving rod (3-5) to overcome the force of the first compression spring (3-9) and move together along the reverse driving force (F 反 ) direction, and at the same time drives the second push plate (3-4) and the second drive rod (3-6) to overcome the action force of the second compression spring (3-11) and move together along the positive driving force (F 正 ) direction; and when the two long axis end points (3-2c) of the elliptical cam edge (3-2a) are in contact with the first push plate (3-3) and the second push plate (3-4) respectively, the operating mechanism (4) can lock the rotation angle of the main shaft (3-1), so that: the second end of the first driving rod (3-5) applies the reverse driving force (F) to the driving end of the corresponding clamping mechanism (2) of the first group (G1) 反 ), while the second end of the second driving rod (3-6) applies the positive driving force (F) to the driving end of the corresponding clamping mechanism (2) of the second group (G2). 正 ), so that each of the clamping mechanisms (2) is in the released state; The synchronous transmission mechanism (3) is provided with at least two cams (3-2); The operating mechanism (4) is provided with an operating rod (4-1), a limiting pin (4-2), a limiting slot plate (4-3), a pawl (4-4) and a ratchet (4-5); the ratchet (4-5) and the limiting slot plate (4-3) are relatively fixed to the main shaft support (3-7); the limiting slot plate (4-3) is provided with an arc-shaped limiting slot (4-3a); the center of the arc-shaped limiting slot (4-3a) falls on the central axis of the main shaft (3-1); the operating rod (4-1) is fixedly connected to the main shaft (3-1); one end of the limiting pin (4-2) is fixedly connected to the operating rod (4-1), and the other end extends into the arc-shaped limiting slot (4-3a) of the limiting slot plate (4-3), so that: the operating rod (4-1) can drive the main shaft (3-1) and the cam (3-2) rotates together, and at the same time drives the limit pin (4-2) to slide along the circular arc limit groove (4-3a), and the rotation angle of the main shaft (3-1) and the cam (3-2) is limited by the circular arc limit groove (4-3a). When the limit pin (4-2) slides to one end of the circular arc limit groove (4-3a), the cam (3-2) rotates to an angle at which the two long axis endpoints (3-2c) respectively contact the first push plate (3-3) and the second push plate (3-4). When the limit pin (4-2) slides to the other end of the circular arc limit groove (4-3a), the cam (3-2) rotates to an angle at which the two short axis endpoints (3-2b) respectively contact the first push plate (3-3) and the second push plate (3-4); Furthermore, the pawl (4-4) is hinged on the limit pin (4-2), and the pawl (4-4) is meshed with the ratchet wheel (4-5), so that the rotation angle of the main shaft (3-1) and the cam (3-2) can be locked by the meshed pawl (4-4) and the ratchet wheel (4-5).

2. The clamping device for assembling a vehicle seat according to claim 1, characterized in that: Among any two adjacent first driving rods (3-5), one of the first driving rods (3-5) is sleeved with the first compression spring (3-9); among any two adjacent second driving rods (3-6), one of the second driving rods (3-6) is sleeved with the second compression spring (3-11).

3. The clamping device for assembling a vehicle seat according to claim 1, characterized in that: Each of the support foot bases (1-1) is provided with a base through hole (1-1a), and the extension direction of the base through hole (1-1a) is parallel to the positive driving force (F 正 ) and reverse driving force (F 反 ) direction; the second end of the first driving rod (3-5) sequentially passes through the second push plate through hole (3-4a) and the base through hole (1-1a) of the corresponding support foot base (1-1) and then is connected to the driving end of the corresponding clamping mechanism (2), and the first driving rod (3-5) can slide in the base through hole (1-1a); the second end of the second driving rod (3-6) sequentially passes through the first push plate through hole (3-3a) and the base through hole (1-1a) of the corresponding support foot base (1-1) and then is connected to the driving end of the corresponding clamping mechanism (2), and the second driving rod (3-6) can slide in the base through hole (1-1a).

4. The clamping device for assembling a vehicle seat according to claim 1, characterized in that: The base (1) is also provided with a bottom plate (1-2); each of the support foot bases (1-1), the main shaft support (3-7), the first rod support (3-8), the second rod support (3-10), the ratchet (4-5) and the limit slot plate (4-3) are fixed on the bottom plate (1-2), and a cam slot (1-2a) is provided on the bottom plate (1-2) for each of the cams (3-2), so that the cams (3-2) rotate in the corresponding cam slots (1-2a).

5. The clamping device for assembling a vehicle seat according to any one of claims 1 to 4, characterized in that: The clamping mechanism (2) is provided with a bracket (2-1), an axle pin (2-2), a swing arm (2-3), a connecting block (2-4), a pressing block (2-5) and a support platform (2-6); the axle pin (2-2) is fixed to the support base (1-1) through the bracket (2-1); one end of the swing arm (2-3) is fixedly connected to one end of the connecting block (2-4); and the fixed connection end of the swing arm (2-3) and the connecting block (2-4) can be rotatably arranged. The swing arm (2-3) is mounted on the shaft pin (2-2), the other end of the swing arm (2-3) is provided with a slide groove (2-3a) and serves as the driving end of the clamping mechanism (2), the pressing block (2-5) is fixed on the other end of the connecting block (2-4), the support platform (2-6) is fixed on the support foot base (1-1), and one of the pressing block (2-5) and the support platform (2-6) is provided with a positioning recessed hole (2-5a), and the other is provided with a positioning boss (2-61); For the clamping mechanism (2) of the first group (G1), the driving end of the clamping mechanism (2) and the second end of the first driving rod (3-5) are connected in the following manner: a first pin is fixed to the second end of the first driving rod (3-5), and the first pin extends into a slide groove (2-3a) of a swing arm (2-3) of the clamping mechanism (2) and can slide along the slide groove (2-3a); For the clamping mechanism (2) of the second group (G2), the driving end of the clamping mechanism (2) and the second end of the second driving rod (3-6) are connected in the following manner: a second pin (2-9) is fixed to the second end of the second driving rod (3-6), and the second pin (2-9) extends into a slide groove (2-3a) of a swing arm (2-3) of the clamping mechanism (2) and is capable of sliding along the slide groove (2-3a); So that: The pressing blocks (2-5) belonging to the first group (G1) and the second group (G2) can be driven by the first driving rod (3-5) and the second driving rod (3-6) to rotate around the corresponding axle pin (2-2) respectively until the two short axis end points (3-2b) of the elliptical cam edge (3-2a) are in contact with the first push plate (3-3) and the second push plate (3-4) respectively, each of the positioning bosses (2-61) is inserted into the corresponding positioning recessed hole (2-5a), and each of the pressing blocks (2-5) is pressed against the corresponding support platform (2-6), so that each of the clamping mechanisms (2) is in the clamping state.

6. The clamping device for assembling a vehicle seat according to claim 5, characterized in that: The pressing block (2-5) of the clamping mechanism (2) is fixed to the connecting block (2-4) by means of bolts (2-7), and a plurality of gaskets (2-8) are arranged between the pressing block (2-5) and the connecting block (2-4).

7. The clamping device for assembling a vehicle seat according to any one of claims 1 to 4, characterized in that: The automobile seat assembly clamping device is used for automobile seats with various types of legs to be assembled. The automobile seat assembly clamping device is provided with a set of leg bases (1-1) and clamping mechanisms (2) for each type of automobile seat to be assembled, that is, the base (1) is provided with a leg base (1-1) corresponding to each seat leg (5) of each type of automobile seat to be assembled, and each leg base (1-1) is equipped with a clamping mechanism (2).

Images