Tool structure assembly capable of automatically switching spans

Abstract

The utility model belongs to the field of tools, and provides a tool structure assembly capable of automatically switching spans, which comprises a tool plate provided with a positioning piece and a pressing piece, and the positioning piece is used for limiting a body framework to move along the horizontal direction; the pressing pieces are distributed on the periphery of the positioning piece and movably press the top wall of the body framework so as to limit the body framework to move in the vertical direction. And the first bearing mechanism and the second bearing mechanism are symmetrically arranged on the tool plate. Compared with the prior art, the utility model has the advantages that the two clamping parts are close to each other or far away from each other through the matching of the rail transfer plate and the shifting block so as to adapt to the assembly between the body framework and the fixing sleeve on the support columns with different intervals, the whole structure is simple, the operation is convenient and fast, and the production efficiency is improved. According to the technical scheme, two products with different spans can be assembled under one tool structure, the labor fatigue strength is reduced while the tool manufacturing cost is reduced, the working efficiency during assembly is effectively improved, and a guarantee is provided for meeting the use requirements of customers.

Description

Technical Field

[0001] The utility model belongs to the field of tooling, and in particular relates to a tooling structure assembly for automatically switching gear distances. Background Art

[0002] With the rapid development of technology, people pay more and more attention to the efficiency of product processing and assembly, so automated operation has become an integral part.

[0003] At present, when assembling the main frame and the fixing sleeve on the existing headrest support rod, the fixing sleeve is often pre-assembled on the main frame first, and then tightened and assembled through the subsequent tightening block. In this process, since the distance between the two pillars on the headrest support rods of different models is different, the existing technology often uses multiple matching tooling for corresponding assembly, which not only increases the manufacturing cost of the tooling, but also increases the human fatigue intensity in the process of frequent replacement of tooling, and also causes the overall work efficiency to decline, which is not conducive to meeting customer usage needs. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a tooling structure assembly for automatically switching gear distances.

[0005] The technical solution adopted by the present invention to solve the technical problem is to propose a tooling structure assembly with automatic gear shifting, which is used to realize the assembly of a headrest support rod. The headrest support rod has two pillars, and a body frame and a pre-assembled fixing sleeve are connected to the headrest support rod, including:

[0006] The tooling plate is equipped with a positioning member and a pressing member, wherein the positioning member is used to limit the movement of the main body frame in the horizontal direction; the pressing member is distributed at the periphery of the positioning member and is movably pressed against the top wall of the main body frame to limit the movement of the main body frame in the vertical direction;

[0007] A first supporting mechanism and a second supporting mechanism are symmetrically arranged on the tooling plate, a first assembly part is movably arranged on the first supporting mechanism, and a second assembly part is movably arranged on the second supporting mechanism, the first assembly part and the second assembly part can move toward or away from each other in a direction parallel to the tooling plate and perpendicular to the axis of the headrest support rod, so that two pillars with different spacings can be placed in the first assembly part and the second assembly part; after the pillars are placed, the first assembly part and the second assembly part can reciprocate along the axis of the headrest support rod to movably press the fixing sleeve into the body frame;

[0008] A shift mechanism is provided on the tooling plate, the shift mechanism having a shift block that can be switched between a first position and a second position, the shift block passing through the tooling plate and connected to the first supporting mechanism or the second supporting mechanism;

[0009] The shift block can be switched from the first position to the second position due to the driving of the shift mechanism, so that the first assembly part and the second assembly part are moved away from each other to adapt to the assembly of pillars with different spacings.

[0010] In the above-mentioned tooling structure assembly for automatically switching gear pitch, the gear shifting mechanism further includes:

[0011] a shift cylinder, arranged on a side of the tooling plate away from the positioning member;

[0012] A track changing plate is slidably arranged on the tooling plate, the driving end of the shift cylinder is connected to the track changing plate, and the shift block is movably engaged in the track changing plate, so that when the track changing plate makes a linear reciprocating movement, it can push the shift block to switch between the first position and the second position;

[0013] A guide rail and a guide block, wherein the guide rail is arranged on the tooling plate, one side of the guide block is movably connected to the guide rail, and the other side is connected to the track changing plate to guide the track changing plate to move back and forth along the length direction of the guide rail.

[0014] In the above-mentioned tooling structure assembly for automatically switching gear pitch, the first supporting mechanism and the second supporting mechanism both further include a shifting member and a moving member, the moving member being arranged on the shifting member, the driving end of the moving member being connected to the first assembly member or the second assembly member to drive the first assembly member or the second assembly member to move against the fixed sleeve; the top end of the shift block is connected to the shifting member to drive the shifting member to move so as to realize the first assembly member and the second assembly member moving closer to or farther away from each other.

[0015] In the above-mentioned tooling structure assembly for automatically switching gear spacing, a first positioning groove, a second positioning groove and a guide groove are provided on the track change plate, the first positioning groove is arranged parallel to the second positioning groove, the guide groove is arranged at an angle, and one end of the guide groove is connected to the first positioning groove, and the other end is connected to the second positioning groove; a locking block is provided on the shift block, and the locking block can slide in the first positioning groove, the second positioning groove and the guide groove.

[0016] In the above-mentioned tooling structure assembly for automatically switching gear distances, the shifting member includes a supporting plate and a first guide rail, the length direction of the first guide rail is perpendicular to the pillar; the top of the shift block is connected to the supporting plate, and the bottom of the supporting plate is provided with a first slider, and the first slider is movably clamped on the first guide rail.

[0017] In the above-mentioned tooling structure assembly for automatically switching gear pitch, the moving part includes:

[0018] A fixing seat, detachably connected to the carrying plate;

[0019] an assembly cylinder, disposed on the fixing seat, wherein a driving end of the assembly cylinder is connected to the first assembly part or the second assembly part;

[0020] A second guide rail and a second slider, the second guide rail is arranged on the supporting plate, and the length direction of the second guide rail is arranged parallel to the axis of the pillar, the top end of the second slider is connected to the first assembly part or the second assembly part, and the second slider is movably clamped on the second slide rail.

[0021] In the above-mentioned tooling structure assembly for automatically switching gear spacing, the positioning member includes:

[0022] A plurality of positioning blocks, a support platform is provided on the tooling plate, a groove is formed in the body frame, the positioning blocks are provided on the support block and are movably inserted in the groove;

[0023] The support block and the L-shaped block are both arranged on the support platform. One end of the body frame is pressed against the L-shaped block, and the other end is placed on the support block so that the two pillars are in a horizontal position.

[0024] In the above-mentioned tooling structure assembly for automatically switching gear pitch, the clamping member includes a driving member and a clamping part. The driving member is distributed at the periphery of the support platform. A connecting rod is provided at the driving end of the driving member. The end of the connecting rod extends to the top of the main body frame and is connected to the clamping part, so that when the driving member is driven, it can drive the clamping part to move and press on the main body frame.

[0025] In the above-mentioned tooling structure assembly for automatically switching gear pitch, the first assembly part and the second assembly part both include a connecting part and a clamping part, the bottom end of the connecting part is connected to the second slider, and an extension block is provided on the connecting part, the driving end of the assembly cylinder is placed on one side of the pillar and connected to the extension block; a U-shaped groove is formed on the clamping part, and the pillar is movably placed in the U-shaped groove.

[0026] The above-mentioned tooling structure assembly for automatically switching gear pitch further includes:

[0027] A base is provided on the tooling plate, wherein a first mounting seat and a second mounting seat are symmetrically provided on the base, and the second mounting seat is close to the main body frame;

[0028] A lifting cylinder is provided at the middle of the base, wherein a connecting block is provided at the driving end of the lifting cylinder, and a connecting shaft is provided in the connecting block;

[0029] A first connecting rod and a tightening block, wherein one end of the first connecting rod is hinged to the first mounting seat, and the other end is hinged to the connecting shaft; one end of the tightening block is hinged to the second mounting seat, and the other end is movably hinged to the second connecting rod, and the end of the second connecting rod is hinged to the connecting shaft;

[0030] The first connecting rod and the second connecting rod can be in the same straight line when the lifting cylinder is lifted, so that the pressing block can be movably pressed against the side wall of the main body frame.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] (1) The utility model is a tooling structure assembly for automatically switching gear spacing. Through the cooperation of the track change plate and the shift block, the two engaging parts for placing the pillars can move closer to or farther away from each other, so as to realize the assembly between the main frame and the fixed sleeve on the pillars with different spacings. The overall structure is simple and the operation is convenient and fast. The assembly of two products with different gear spacings can be realized under one tooling structure. While reducing the tooling manufacturing cost, it also reduces the human fatigue intensity, effectively improves the work efficiency during assembly, and provides a guarantee for meeting the customer's use needs.

[0033] (2) The track change plate is formed with a first positioning groove, a second positioning groove and a guide groove, wherein the guide groove is inclined relative to the first positioning groove and the second positioning groove, which is conducive to the engagement groove in the guide groove being able to smoothly switch to the first positioning groove or the second positioning groove, and effectively avoids the engagement block being stuck in the guide groove and affecting the smoothness and stability of the two engagement parts when the gear spacing is switched.

[0034] (3) When the main frame is accurately placed on the positioning piece, the pressing block can be pressed against the side wall of the main frame under the drive of the lifting cylinder. At the same time, the dead point phenomenon that occurs when the first connecting rod and the second connecting rod are in the same straight line is utilized to ensure the stability of the pressing block during the pressing process to a great extent, thereby providing a guarantee for the subsequent assembly accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is a perspective view of the present application;

[0036] Figure 2 yes Figure 1 Bottom view of

[0037] Figure 3 This is the installation structure view of the shift mechanism;

[0038] Figure 4 1 is a schematic diagram of the installation structure of the first supporting mechanism;

[0039] Figure 5 It is a three-dimensional diagram of the positioning member;

[0040] Figure 6 It is a schematic diagram of the installation structure of the tightening block, the first connecting rod and the second connecting rod.

[0041] In the figure, 1, headrest support rod; 10, support column; 11, body frame; 12, fixing sleeve;

[0042] 2. Tooling plate; 20. Support platform; 21. Base; 210. First mounting seat; 211. Second mounting seat;

[0043] 3. Positioning piece; 30. Positioning block; 31. Support block; 32. L-shaped block;

[0044] 4. Pressing member; 40. Driving member; 41. Pressing portion; 42. Connecting rod;

[0045] 5. First carrying mechanism; 50. First assembly part;

[0046] 6. Second carrying mechanism; 60. Second assembly part;

[0047] 70, moving part; 700, fixed seat; 701, assembly cylinder; 702, second guide rail; 703, second slider; 71, shift member; 710, bearing plate; 711, first guide rail; 712, first slider; 72, connecting part; 720, extension block; 73, engaging part; 730, U-shaped groove;

[0048] 8. Shift mechanism; 80. Shift block; 800. Engaging block; 81. Shift cylinder; 82. Track shift plate; 820. First positioning groove; 821. Second positioning groove; 822. Guide groove; 83. Guide rail; 84. Guide block;

[0049] 90. Lifting cylinder; 91. Connecting block; 910. Connecting shaft; 92. First connecting rod; 93. Clamping block; 94. Second connecting rod. DETAILED DESCRIPTION

[0050] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0051] like Figures 1 to 6As shown, the utility model is a tooling structure assembly for automatically switching gear spacing, which is used to realize the assembly of a headrest support rod 1. The headrest support rod 1 has two pillars 10, and a main body frame 11 and a pre-assembled fixing sleeve 12 are connected to the headrest support rod 1, including: a tooling plate 2, which is equipped with a positioning member 3 and a pressing member 4. The positioning member 3 is used to limit the movement of the main body frame 11 in the horizontal direction; the pressing member 4 is distributed at the periphery of the positioning member 3 and is movably pressed against the top wall of the main body frame 11 to limit the movement of the main body frame 11 in the vertical direction; a first carrying mechanism 5 and a second carrying mechanism 6 are symmetrically arranged on the tooling plate 2, a first assembly part 50 is movably provided on the first carrying mechanism 5, and a second assembly part 60 is movably provided on the second carrying mechanism 6, and the first assembly part 50 and the second assembly part 60 can be moved along a direction parallel to The tooling plate 2 is moved closer or farther away from each other in a direction perpendicular to the axis of the headrest support rod 1, so that two pillars 10 with different spacings can be placed in the first assembly part 50 and the second assembly part 60; the first assembly part 50 and the second assembly part 60 can be reciprocated along the axis direction of the headrest support rod 1 after the pillar 10 is placed, so as to movably press the fixing sleeve 12 into the main body frame 11; the shifting mechanism 8 is arranged on the tooling plate 2, and the shifting mechanism 8 has a shifting block 80 that can be switched between a first position and a second position. The shifting block 80 passes through the tooling plate 2 and is connected to the first supporting mechanism 5 or the second supporting mechanism 6; the shifting block 80 can be switched from the first position to the second position due to the drive of the shifting mechanism 8, so that the first assembly part 50 and the second assembly part 60 move away from each other to adapt to the assembly of pillars 10 with different spacings.

[0052] This solution is mainly aimed at assembling a headrest support rod 1 having two pillars 10, wherein, Figure 1 As shown, the headrest support rod 1 is connected to the main frame 11 and the fixing sleeve 12. For two pillars 10 with different spacings (i.e., different types of headrest support rods 1), it is necessary to realize the assembly of the fixing sleeve 12 and the main frame 11 through a tooling structure. Specifically, when the shift mechanism 8 drives the shift block 80 to be in the first position (not shown in the figure), this state can be used to place two pillars 10 with a larger spacing, and then, with the cooperation of the positioning member 3 and the pressing member 4, the stability of the headrest support rod 1 and the main frame 11 is ensured, which is conducive to the subsequent first assembly part 50 and the second assembly part 60 being driven by the first receiving mechanism and the second receiving mechanism respectively to realize the assembly operation between the fixing sleeve 12 and the main frame 11; similarly, when the shift mechanism 8 drives the shift block 80 to be in the second position (as shown in the figure), the shift mechanism 8 drives the shift block 80 to be in the second position (as shown in the figure). Figure 1(As shown in the figure), the first assembly member 50 and the second assembly member 60 can be moved toward each other by the movement of the shift block 80. This method also reduces the distance between the two assembly members, making it easier to place the two pillars 10 with a smaller distance between them into the first assembly member 50 and the second assembly member 60, respectively, and repeat the above assembly steps. It can be seen that the overall structure of this tooling structure is simple and easy to operate. It can be used to assemble two products with different gear spacings using a single tooling structure, while reducing tooling manufacturing costs and labor fatigue, effectively improving assembly efficiency and ensuring that customer needs are met.

[0053] like Figure 2 and Figure 3 As shown, the shifting mechanism 8 also includes: a shifting cylinder 81, which is arranged on the side of the tooling plate 2 away from the positioning member 3; a track changing plate 82, which is slidably arranged on the tooling plate 2, and the driving end of the shifting cylinder 81 is connected to the track changing plate 82, and the shifting block 80 is movably engaged in the track changing plate 82, so that when the track changing plate 82 moves back and forth in a straight line, it can push the shifting block 80 to switch between the first position and the second position; a guide rail 83 and a guide block 84, the guide rail 83 is arranged on the tooling plate 2, one side of the guide block 84 is movably engaged with the guide rail 83, and the other side is connected to the track changing plate 82 to guide the track changing plate 82 to move back and forth along the length direction of the guide rail 83.

[0054] In this embodiment, the guide rail 83 is designed along the length direction of the tooling plate 2, that is, the moving direction of the guide block 84 is exactly perpendicular to the direction in which the first assembly part 50 and the second assembly part 60 move toward or away from each other. Specifically, when the shift cylinder 81 drives the track change plate 82 along the Figure 2 When moving to the right, the track changing plate 82 can rely on the sliding of the guide block 84 on the guide rail 83, thereby pushing the shift block 80 that is movably engaged with the track changing plate 82 to switch freely between the first position and the second position. The overall structure is simple, and the cooperation between the guide block 84 and the guide rail 83 provides the track changing plate 82 with a guiding and limiting effect during the reciprocating movement, thereby providing a guarantee for the smoothness and stability of the shift block 80 when freely switching between the two positions.

[0055] The track change plate 82 is provided with a first positioning groove 820, a second positioning groove 821 and a guide groove 822. The first positioning groove 820 is arranged parallel to the second positioning groove 821, the guide groove 822 is arranged at an angle, and one end of the guide groove 822 is connected to the first positioning groove 820, and the other end is connected to the second positioning groove 821; the shift block 80 is provided with a locking block 800, and the locking block 800 can slide in the first positioning groove 820, the second positioning groove 821 and the guide groove 822.

[0056] Further, if Figure 3As shown, this solution mainly utilizes the first positioning groove 820, the second positioning groove 821 and the guide groove 822 to realize the free switching of the shift block 80 between the first position and the second position. When the track shift plate 82 is driven by the above-mentioned shift cylinder, the engaging block 800 that is originally movably engaged in the first positioning groove 820 (that is, the first position of the shift block 80 at this time) can slide into the guide groove 822 as the track shift plate 82 moves. Since the guide groove 822 and the first positioning groove 820 and the second positioning groove 821 are all inclined, the guide groove 822 can guide the engaging block 800 to smoothly switch to the second positioning groove 821 (as shown in FIG. Figure 3 As shown, the shift block 80 is in the second position at this time), which effectively prevents the engaging block 800 from being stuck in the guide groove 822 and affecting the smoothness and stability of the two engaging parts 73 during gear shifting.

[0057] The first supporting mechanism 5 and the second supporting mechanism 6 also include a shifting member 71 and a moving member 70. The moving member 70 is arranged on the shifting member 71. The driving end of the moving member 70 is connected to the first assembly part 50 or the second assembly part 60 to drive the first assembly part 50 or the second assembly part 60 to move and press against the fixed sleeve 12; the top end of the shifting block 80 is connected to the shifting member 71 to drive the shifting member 71 to move so that the first assembly part 50 and the second assembly part 60 move closer to or away from each other.

[0058] like Figure 3 and Figure 4 As shown, in this solution, the top end of the shift block 80 is connected to the shift member 71. It is precisely because the shift block 80 switches between the above-mentioned first position and the second position that the first assembly part 50 and the second assembly part 60 can be respectively moved closer to or farther away from each other through the movement of the two shift blocks 80. When the shift block 80 switches from the above-mentioned first position to the second position, the movement of the shift block 80 can be used to push the shift member 71 closer to each other, and finally the first assembly part 50 and the second assembly part 60 are switched from a state with a larger spacing to a state with a smaller spacing. Similarly, the assembly operation between the two pillars 10 with a larger spacing can be achieved. Therefore, the tooling structure can switch the tooling gear spacing change under one drive of the shift cylinder 81, which is convenient and fast, and greatly improves work efficiency.

[0059] like Figure 4 As shown, the shift member 71 includes a supporting plate 710 and a first guide rail 711, and the length direction of the first guide rail 711 is perpendicular to the pillar 10; the top of the shift block 80 is connected to the supporting plate 710, and the bottom of the supporting plate 710 is provided with a first slider 712, and the first slider 712 is movably connected to the first guide rail 711.

[0060] When the shift block 80 is pushed from the first position to the second position under the drive of the track change plate 82, the two shift blocks 80 can respectively pull the receiving plates on the first supporting mechanism 5 and the second supporting mechanism 6 toward each other along the length direction of the first guide rail 711 during the movement. It should be noted that in this solution, the length direction of the first guide rail 711 is parallel to the tooling plate 2 and perpendicular to the axial direction of the pillar 10. This also enables the receiving plate to slide on the first guide rail 711 by relying on the first slider 712 to realize the function of the first assembly part 50 and the second assembly part 60 moving toward or away from each other, so as to adapt to the assembly of two products with different gear spacings. This structure is integrated into a tooling structure, which not only saves manufacturing costs, but also provides convenience when switching when assembling products with different gear spacings.

[0061] The movable part 70 includes: a fixed seat 700, which is detachably connected to the supporting plate 710; an assembly cylinder 701, which is arranged on the fixed seat 700, and the driving end of the assembly cylinder 701 is connected to the first assembly part 50 or the second assembly part 60; a second guide rail 702 and a second slider 703, the second guide rail 702 is arranged on the supporting plate 710, and the length direction of the second guide rail 702 is arranged parallel to the axis of the pillar 10, the top end of the second slider 703 is connected to the first assembly part 50 or the second assembly part 60, and the second slider 703 is movably clamped on the second slide rail.

[0062] Continue to refer Figure 4 The assembly cylinder 701 is detachably connected to the fixing seat 700, which provides convenience for subsequent maintenance and replacement. The driving end of the assembly cylinder 701 in this solution is placed parallel to the two pillars 10. The extension plate connected to the first assembly part 50 or the second assembly part 60 is used to connect the driving end of the assembly cylinder 701 to the first assembly part 50 or the second assembly part 60. At the same time, it can effectively avoid positional interference between the pillar 10 placed in the first assembly part 50 or the second assembly part 60 and the driving end of the assembly cylinder 701. The staggered design ensures the smoothness and stability of the fixing sleeve 12 when it is movably pressed and assembled into the main body frame 11 when the assembly cylinder 701 drives the first assembly part 50 or the second assembly part 60. Similarly, in this solution, the length direction of the second guide rail 702 is set parallel to the axial direction of the pillar 10 to avoid interference with the pillar 10 when the first assembly part 50 or the second assembly part 60 moves along the length direction of the second guide rail 702 by relying on the second slider 703, thereby ensuring the accuracy of the first assembly part 50 and the second assembly part 60 in movably pressing and tightly assembling the fixing sleeve 12 into the main body frame 11, thereby effectively improving the assembly accuracy of the tooling structure for the product.

[0063] The first assembly part 50 and the second assembly part 60 both include a connecting portion 72 and a clamping portion 73. The bottom end of the connecting portion 72 is connected to the second slider 703, and an extension block 720 is provided on the connecting portion 72. The driving end of the assembly cylinder 701 is placed on one side of the pillar 10 and connected to the extension block 720; a U-shaped groove 730 is formed on the clamping portion 73, and the pillar 10 is movably placed in the U-shaped groove 730.

[0064] Continue to refer Figure 4 In this embodiment, the first assembly part 50 and the second assembly part 60 are both composed of two parts: a connecting portion 72 and a locking portion 73. The connecting portion 72 is used to connect the above-mentioned extension block 720, the second slider 703 and the locking portion 73, ensuring that the two locking portions 73 can move closer to or farther away from each other through the movement of the connecting portion 72 under the drive of the assembly cylinder 701; and the U-shaped groove 730 formed in the locking portion 73 is used to limit the movement of the pillar 10 in the horizontal direction, thereby providing a guarantee for the assembly accuracy during subsequent operations.

[0065] The positioning member 3 includes: several positioning blocks 30, a support platform 20 is provided on the tooling plate 2, a groove is formed in the main body frame 11, the positioning block 30 is provided on the support block 31, and is movably inserted in the groove; the support block 31 and the L-shaped block 32 are both provided on the support platform 20, one end of the main body frame 11 is pressed against the L-shaped block 32, and the other end is placed on the support block 31, so that the two pillars 10 are in a horizontal position.

[0066] like Figure 5 As shown, the positioning block 30 can be movably inserted into the groove (not shown in the figure) when the main body frame 11 is placed. Before this, the main body frame 11 can be pre-positioned before assembly and placement by movably pressing its end against the L-shaped block 32. At the same time, the support block 31 is used to support the bottom of the main body frame 11 to ensure that the main body frame 11 movably inserted in the positioning block 30 maintains a certain stability relative to the support platform 20, thereby providing a guarantee for the subsequent assembly accuracy between the fixing sleeve 12 and the main body frame 11.

[0067] The clamping member 4 includes a driving member 40 and a clamping portion 41. The driving member 40 is distributed at the periphery of the support platform 20. A connecting rod 42 is provided at the driving end of the driving member 40. The end of the connecting rod 42 extends to the top of the main body frame 11 and is connected to the clamping portion 41, so that when the driving member 40 is driven, it can drive the clamping portion 41 to move and press on the main body frame 11.

[0068] like Figure 1As shown, when the driving end of the driving member 40 is lifted in the vertical direction, the pressing portion 41 can be driven away from the positioning block 30 and the L-shaped block 32 by the connecting rod 42, effectively avoiding the damage caused by the collision between the main frame 11 and the pressing portion 41 during the placement process. As the pressing portion 41 presses the top wall of the main frame 11, the displacement of the main frame 11 in the horizontal and vertical directions is effectively limited. It should be noted that the pressing portion 41 in this solution can be a rectangular pressing block or a pressing wheel structure, and at least one pressing block is provided at the end of different connecting rods 42. In combination with the connecting rod 42 provided with a pressing wheel, it can not only realize the pressing and fixing of the main frame 11, but also reduce the friction between the pressing wheel and the main frame 11, ensuring that the assembled product can still better meet the customer's usage requirements.

[0069] Preferably, this solution can also be provided with a detection camera located above the support platform 20 on the tooling plate 2, through which the detection camera can be used to detect whether the main body frame 11, the fixing sleeve 12 and the headrest support rod 1 to be assembled are placed accurately, thereby providing a guarantee for the quality of subsequent assembly accuracy.

[0070] like Figure 6 As shown, this solution also includes: a base 21, which is arranged on the tooling plate 2, and a first mounting seat 210 and a second mounting seat 211 are symmetrically arranged on the base 21, and the second mounting seat 211 is close to the main body frame 11; a lifting cylinder 90, which is arranged in the middle position of the base 21, and a connecting block 91 is provided at the driving end of the lifting cylinder 90, and a connecting shaft 910 is provided in the connecting block 91; a first connecting rod 92 and a tightening block 93, one end of the first connecting rod 92 is hinged to the first mounting seat 210, and the other end is hinged to the connecting shaft 910; one end of the tightening block 93 is hinged to the second mounting seat 211, and the other end is movably hinged to the second connecting rod 94, and the end of the second connecting rod 94 is hinged to the connecting shaft 910; the first connecting rod 92 and the second connecting rod 94 can be in the same straight line when the lifting cylinder 90 is lifted, so that the tightening block 93 can be movably tightened to the side wall of the main body frame 11.

[0071] In addition to the positioning and pressing of the main frame 11 by the positioning member 3 and the pressing member 4, this solution also uses the pressing block 93 to press the side wall of the main frame 11. The difference is that when the lifting cylinder 90 drives the connecting block 91 to be in the Figure 6 In the state shown, the dead point phenomenon that occurs when the first connecting rod 92 and the second connecting rod 94 are in the same straight line can be utilized to ensure the stability of the pressing block 93 when pressing against the side wall of the main frame 11 to a great extent, thereby providing a guarantee for the subsequent assembly accuracy. Figure 6When moving downward, the first connecting rod 92 can rotate around the first mounting seat 210 under the traction of the connecting block 91, and the second connecting rod 94 pulls the pressing block 93 away from the main frame 11 during the rotation, so as to facilitate the disassembly of the main frame 11 after assembly is completed.

[0072] It should be noted that the driving member 40 in this solution can be hydraulically driven, cylinder driven or other driving devices.

[0073] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0074] In addition, terms such as "first," "second," and "an" in this utility model are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0075] In this utility model, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0076] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in this field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

Claims

1. A tooling structure assembly for automatically switching gear spacing, used to realize the assembly of a headrest support rod, wherein the headrest support rod has two pillars, and a body frame and a pre-assembled fixing sleeve are connected to the headrest support rod, characterized in that: include: The tooling plate is equipped with a positioning member and a pressing member, wherein the positioning member is used to limit the movement of the main body frame in the horizontal direction; the pressing member is distributed at the periphery of the positioning member and is movably pressed against the top wall of the main body frame to limit the movement of the main body frame in the vertical direction; A first supporting mechanism and a second supporting mechanism are symmetrically arranged on the tooling plate, a first assembly part is movably arranged on the first supporting mechanism, and a second assembly part is movably arranged on the second supporting mechanism, the first assembly part and the second assembly part can move toward or away from each other in a direction parallel to the tooling plate and perpendicular to the axis of the headrest support rod, so that two pillars with different spacings can be placed in the first assembly part and the second assembly part; after the pillars are placed, the first assembly part and the second assembly part can reciprocate along the axis of the headrest support rod to movably press the fixing sleeve into the body frame; A shift mechanism is provided on the tooling plate, the shift mechanism having a shift block that can be switched between a first position and a second position, the shift block passing through the tooling plate and connected to the first supporting mechanism or the second supporting mechanism; The shift block can be switched from the first position to the second position due to the driving of the shift mechanism, so that the first assembly part and the second assembly part are moved away from each other to adapt to the assembly of pillars with different spacings.

2. The tooling structure assembly for automatically switching gear distance according to claim 1, characterized in that: The shift mechanism further comprises: a shift cylinder, arranged on a side of the tooling plate away from the positioning member; A track changing plate is slidably arranged on the tooling plate, the driving end of the shift cylinder is connected to the track changing plate, and the shift block is movably engaged in the track changing plate, so that when the track changing plate makes a linear reciprocating movement, it can push the shift block to switch between the first position and the second position; A guide rail and a guide block, wherein the guide rail is arranged on the tooling plate, one side of the guide block is movably connected to the guide rail, and the other side is connected to the track changing plate to guide the track changing plate to move back and forth along the length direction of the guide rail.

3. The tooling structure assembly for automatically switching gear distance according to claim 1, characterized in that: The first supporting mechanism and the second supporting mechanism both further include a shifting member and a moving member, wherein the moving member is arranged on the shifting member, and the driving end of the moving member is connected to the first assembly member or the second assembly member to drive the first assembly member or the second assembly member to move against the fixed sleeve; the top end of the shift block is connected to the shifting member to drive the shifting member to move so as to realize the first assembly member and the second assembly member moving closer to or farther away from each other.

4. The tooling structure assembly for automatically switching gear distance according to claim 2, characterized in that: The track change plate is provided with a first positioning groove, a second positioning groove and a guide groove, the first positioning groove is arranged parallel to the second positioning groove, the guide groove is arranged at an angle, and one end of the guide groove is connected to the first positioning groove, and the other end is connected to the second positioning groove; the shift block is provided with a locking block, and the locking block can slide in the first positioning groove, the second positioning groove and the guide groove.

5. The tooling structure assembly for automatically switching gear distance according to claim 3, characterized in that: The shift member includes a supporting plate and a first guide rail, the length direction of the first guide rail is perpendicular to the pillar; the top of the shift block is connected to the supporting plate, and the bottom of the supporting plate is provided with a first slider, and the first slider is movably connected to the first guide rail.

6. The tooling structure assembly for automatically switching gear distance according to claim 5, characterized in that: The moving part includes: A fixing seat, detachably connected to the carrying plate; an assembly cylinder, disposed on the fixing seat, wherein a driving end of the assembly cylinder is connected to the first assembly part or the second assembly part; A second guide rail and a second slider, the second guide rail is arranged on the supporting plate, and the length direction of the second guide rail is arranged parallel to the axis of the pillar, the top end of the second slider is connected to the first assembly part or the second assembly part, and the second slider is movably clamped on the second slide rail.

7. The tooling structure assembly for automatically switching gear distance according to claim 1, characterized in that: The positioning member includes: A plurality of positioning blocks, a support platform is provided on the tooling plate, a groove is formed in the body frame, the positioning blocks are provided on the support block and are movably inserted in the groove; The support block and the L-shaped block are both arranged on the support platform. One end of the body frame is pressed against the L-shaped block, and the other end is placed on the support block so that the two pillars are in a horizontal position.

8. The tooling structure assembly for automatically switching gear distance according to claim 7, characterized in that: The clamping member includes a driving member and a clamping part. The driving member is distributed at the periphery of the support platform. A connecting rod is provided at the driving end of the driving member. The end of the connecting rod extends to the top of the main body frame and is connected to the clamping part, so that when the driving member is driven, it can drive the clamping part to move and press on the main body frame.

9. The tooling structure assembly for automatically switching gear distance according to claim 5, characterized in that: The first assembly part and the second assembly part both include a connecting portion and a clamping portion. The bottom end of the connecting portion is connected to the second slider, and an extension block is provided on the connecting portion. The driving end of the assembly cylinder is placed on one side of the pillar and connected to the extension block. A U-shaped groove is formed on the clamping portion, and the pillar is movably placed in the U-shaped groove.

10. The tooling structure assembly for automatically switching gear distance according to claim 1, characterized in that: Also includes: A base is provided on the tooling plate, wherein a first mounting seat and a second mounting seat are symmetrically provided on the base, and the second mounting seat is close to the main body frame; A lifting cylinder is provided at the middle of the base, wherein a connecting block is provided at the driving end of the lifting cylinder, and a connecting shaft is provided in the connecting block; A first connecting rod and a tightening block, wherein one end of the first connecting rod is hinged to the first mounting seat, and the other end is hinged to the connecting shaft; one end of the tightening block is hinged to the second mounting seat, and the other end is movably hinged to the second connecting rod, and the end of the second connecting rod is hinged to the connecting shaft; The first connecting rod and the second connecting rod can be in the same straight line when the lifting cylinder is lifted, so that the pressing block can be movably pressed against the side wall of the main body frame.

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