Positioning clamp for assembling bed core frame

Abstract

The utility model provides a positioning clamp for assembling a bed core frame, and belongs to the technical field of machinery. The problem that an existing clamp affects the assembling stability is solved. The positioning clamp for assembling the bed core frame comprises a base plate, and two sets of clamping assemblies are arranged on the base plate in a front-and-back mode; the clamping assembly comprises at least one clamping unit, each clamping unit comprises a vertically-arranged clamping block, a liftable pressing piece and a translation mechanism used for driving the clamping block to translate front and back, and a clamping area used for clamping a bed core is defined by the multiple clamping blocks; a strip-shaped notch is formed in the side, close to the clamping area, of the top wall of the clamping block and penetrates left and right, a section of supporting face with the arc-shaped cross section is arranged on the inner wall of the strip-shaped notch, a pressing piece is arranged over each supporting face, and a clamping opening used for pressing the frame is formed between each pressing piece and the corresponding supporting face. A driving mechanism enabling the corresponding pressing piece to move front and back is arranged on the side, back to the clamping area, of the clamping block. The positioning clamp for assembling the bed core frame can ensure the assembling stability.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to a positioning fixture, particularly a positioning fixture for assembling a bed core frame. Background Technology

[0002] To improve the stability of the mattress core, a metal frame is typically used for fixation. Corresponding automated equipment has been developed, such as the mattress core frame positioning device, method, and spring mattress production line disclosed in the Chinese Patent Database (application number: 202210967591.4). This device includes a positioning mechanism comprising a support platform, at least one fixing component, and at least one limiting component. The support platform supports the mattress core, and the limiting component is movably positioned relative to or away from the support platform to ensure the frame fits against the mattress core. The limiting component is movably configured to form a receiving station and a positioning station. The limiting component is adapted to receive the frame at the receiving station and to limit the frame at the positioning station. The fixing component includes at least one nail gun and a drive assembly, the drive assembly driving the nail gun. The limiting component includes at least one flip plate, a first driving member, and a second driving member. The flip plate is bent and has an opening. When the frame is received at the material receiving station, the opening of the flip plate faces upward, and when the frame is positioned at the positioning station, the opening of the flip plate faces downward. The flip plate is provided with a magnetic adsorption member and is adapted to limit one side of the frame at the positioning station. The first driving member is used to drive the flip plate to flip over, and the second driving member is used to drive the flip plate to translate, so that the flip plate switches between the material receiving station and the positioning station, and when the flip plate is at the positioning station, the frame fits against the bed core.

[0003] In the aforementioned positioning device, the frame is magnetically attached to the flip plate, and the flip plate flips the frame upside down onto the edge of the bed core. Because the frame does not rotate with the flip plate during the flipping process, there is significant friction between the flip plate and the frame, which can easily cause the frame to shift position, affecting the stability and accuracy of nail positioning. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a stable positioning fixture for assembling bed core frames.

[0005] The objective of this utility model can be achieved through the following technical solution: a positioning fixture for assembling a bed core frame, comprising a base plate for supporting the bed core, characterized in that the base plate is provided with two sets of clamping assemblies, and the two sets of clamping assemblies are arranged front and back; the clamping assembly includes at least one clamping unit, and multiple clamping units in the same clamping assembly are arranged side by side; the clamping unit includes a vertically arranged clamping block, a liftable pressing member, and a translation mechanism for driving the clamping block to move back and forth, and multiple clamping blocks form a clamping area for clamping the bed core; the top wall of the clamping block is provided with a strip-shaped notch on the side near the clamping area, and the strip-shaped notch is arranged through the left and right, and the inner wall of the strip-shaped notch has a support surface with a cross-section of arc, and the pressing member is provided directly above each support surface, and a clamping opening for pressing the frame is formed between the pressing member and the corresponding support surface; the side of the clamping block opposite to the clamping area is provided with a driving mechanism for moving the corresponding pressing member back and forth.

[0006] In use, the robotic arm places the bed core flat on the substrate. Then, the clamping block approaches and clamps the bed core under the action of the translation mechanism. Next, the robotic arm places the frame horizontally into the support surface and presses it down by the pressure member. Then, the frame and the bed core are nailed together by the nail gun. After the nailing operation is completed, the clamping block is reset, and the pressure member moves away from the clamping block and is offset from the corresponding support surface position under the action of the drive mechanism.

[0007] When clamping and positioning the frame, simply place the frame flat on the support surface and press it down with the pressure piece. In this way, the pressure piece does not come into contact with the frame as it moves toward it, thus effectively preventing the frame from shifting during the clamping process and ensuring that the bed core frame assembly process is stable and precise.

[0008] In the aforementioned positioning fixture for assembling the bed core frame, the inner wall of the strip-shaped notch consists of a side surface, a bottom surface, and a support surface. The side surface is an inclined guide surface, and the side surface and the bottom surface are connected by the support surface. This design not only facilitates processing but also allows the guide surface to act as a guide, forcibly correcting the frame position and ensuring that the frame accurately falls onto the support surface, making the assembly process more stable and smooth.

[0009] In the aforementioned positioning fixture for assembling the bed core and frame, each clamping unit includes at least two clamping blocks. Multiple clamping blocks within the same clamping unit are arranged side-by-side and fixed to the same support plate. The aforementioned translation mechanism is connected to the corresponding support plate. The number of pressure components and clamping blocks is the same, and their positions correspond one-to-one. The driving mechanism is used to drive the movement of multiple pressure components within the same clamping unit. By increasing the number of pressure components and clamping blocks, the positioning strength and stability of the bed core and frame can be enhanced.

[0010] In the aforementioned positioning fixture for assembling the bed core frame, the drive mechanism includes a rotary clamping cylinder. The number of rotary clamping cylinders and clamping blocks are the same, and their positions correspond one-to-one. Each rotary clamping cylinder includes a piston rod, a swing block fixed to the top of the piston rod, and a cylinder body fixed to the corresponding clamping block. The aforementioned pressure component is a pressure rod vertically fixed to the lower side of the swing block. In actual products, the combination of the rotary clamping cylinder and the pressure rod can be directly obtained from the market, which not only effectively simplifies the structure but also greatly reduces the design and assembly difficulty.

[0011] As another option, in the above-mentioned positioning fixture for assembling the bed core frame, the driving mechanism includes a connecting plate, a telescopic cylinder fixed on the connecting plate, and a driving component for driving the connecting plate to move back and forth. The telescopic cylinder and the clamping block are the same in number and their positions correspond one-to-one. The aforementioned pressing component is the piston rod of the telescopic cylinder, and the driving component is fixed to the clamping block through a bracket.

[0012] In the aforementioned positioning fixture for assembling the bed core and frame, within the same clamping unit, the lower ends of several clamping blocks are fixedly connected to the aforementioned support plate, and the upper ends of several clamping blocks are connected together via long plates, with the aforementioned drive mechanism mounted on the corresponding long plates. This design effectively enhances the rigidity of the clamping blocks, thereby simultaneously improving the strength and stability of clamping the bed core and frame.

[0013] In the aforementioned positioning fixture for assembling the bed core frame, the support plate is slidably mounted on the base plate, making the support plate slide more smoothly and accurately.

[0014] In the aforementioned positioning fixture for assembling the bed core frame, a number of guide blocks arranged in a rectangular or square shape are fixed on the base plate. These guide blocks form a receiving space whose shape and size match the bed core, thereby limiting the position of the bed core when it is placed on the base plate, so that the bed core can be quickly placed in place.

[0015] In the aforementioned positioning fixture for assembling the bed core frame, the upper end of the guide block near the receiving space has an inclined guide surface. This guide surface guides the bed core during placement, ensuring precise positioning and further improving assembly accuracy and stability.

[0016] In the aforementioned positioning fixture for assembling the bed core frame, the guide block can slide horizontally in a straight line to change the area of ​​the accommodating space, and is locked in the sliding position by a locking element. This mechanism allows for adaptability to different types of bed cores by sliding the guide block to change the accommodating space, offering good practicality.

[0017] In the aforementioned positioning fixture for assembling the bed core frame, a guide block presses against the base plate. The lower end of the guide block, facing away from the receiving space, has a vertically penetrating groove, the length of which extends along the sliding direction of the guide block. The base plate has threaded holes, the number of which is the same as the number of grooves, and their positions correspond one-to-one. The locking element is a bolt inserted into the groove, with the bolt shank screwed into the corresponding threaded hole, and the bolt head pressing against the corresponding guide block. The guide block can be slid or locked by removing and installing the bolt, offering advantages such as simple structure and ease of use.

[0018] Compared with existing technologies, the positioning fixture for assembling the bed core frame has the following advantages:

[0019] 1. When clamping and positioning the frame, simply place the frame flat on the support surface and press it down by moving the pressure piece. In this way, the pressure piece does not come into contact with the frame as it moves toward it, thus effectively preventing the frame from shifting during the clamping process and ensuring that the bed core frame assembly process is stable and accurate.

[0020] 2. The side of the strip-shaped notch is an inclined guide surface, and the side and bottom surfaces are connected by the aforementioned support surface. This not only facilitates processing, but the guide surface also acts as a guide to forcibly correct the position of the frame, ensuring that the frame falls accurately on the support surface, making the assembly process more stable and smooth. Attached Figure Description

[0021] Figure 1 This is a diagram showing the usage status of the positioning fixture used for assembling the bed core frame.

[0022] Figure 2 This is a three-dimensional schematic diagram of the positioning fixture used for assembling the core frame of the notebook.

[0023] Figure 3 This is a schematic diagram of the clamping unit.

[0024] Figure 4 yes Figure 3 Enlarged diagram of point A in the middle.

[0025] In the figure, 1 is the base plate; 2 is the guide block; 2a is the guide surface; 2b is the slide groove; 3 is the clamping unit; 3a is the clamping block; 3a1 is the strip notch; 3a2 is the support surface; 3a3 is the guide surface; 3b is the pressure piece; 4 is the rotary clamping cylinder; 4a is the swing block; 5 is the long plate; 6 is the bed core; 7 is the frame; 8 is the support plate; and 9 is the translation mechanism. Detailed Implementation

[0026] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0027] Example 1: As Figure 1 and Figure 2 As shown, the positioning fixture for assembling the bed core frame includes a base plate 1 for supporting the bed core 6. The base plate 1 is horizontally arranged and is generally rectangular or square in structure.

[0028] Specifically

[0029] like Figure 2 As shown, a plurality of guide blocks 2 arranged in a rectangular or square pattern are fixed on the substrate 1, and the guide blocks 2 form a receiving space whose shape and size match those of the bed core 6. This space is used to limit the position of the bed core 6 when it is placed on the substrate 1, so that the bed core 6 can be quickly placed into place. In the actual product, when the bed core 6 is placed horizontally on the substrate 1, the guide blocks 2 are distributed around the bed core 6.

[0030] To further explain, the upper end of guide block 2, near the accommodating space, features an inclined guide surface 2a, ensuring precise placement of the bed core 6 and further improving assembly accuracy and stability. Guide block 2 can slide horizontally to change the area of ​​the accommodating space. During this movement, guide block 2 can move left and right or back and forth, and is locked in its sliding position by locking components. The number of locking components and guide blocks 2 are the same, and their positions correspond one-to-one. By sliding guide block 2 to change the area of ​​the accommodating space, it can adapt to different types of bed cores 6, demonstrating good practicality.

[0031] In this embodiment, the sliding installation method of the guide block 2 and the structure of the locking component are as follows: The guide block 2 presses against the base plate 1. The lower end of the guide block 2 has a vertically penetrating groove 2b on the side facing away from the receiving space, and the length of the groove 2b extends along the sliding direction of the guide block 2. The base plate 1 is provided with threaded holes, the number of threaded holes and the grooves 2b are the same and their positions correspond one-to-one. The locking component is a bolt that passes through the groove 2b, the bolt shank is screwed into the corresponding threaded hole, and the bolt head is pressed against the corresponding guide block 2. The guide block 2 can be slidable or locked by removing and installing the bolt, which has the advantages of simple structure and convenient use. Preferably, the guide block 2 is L-shaped as a whole to facilitate design and assembly.

[0032] like Figures 1 to 4As shown, two sets of clamping assemblies are provided on the substrate 1, and the two sets of clamping assemblies are arranged one in front of the other. At this time, both clamping assemblies are located outside the aforementioned accommodating space. The clamping assembly includes at least one clamping unit 3, and multiple clamping units 3 in the same clamping assembly are arranged side by side. The clamping unit 3 includes a vertically arranged clamping block 3a, a liftable pressing member 3b, and a translation mechanism 9 for driving the clamping block 3a to move back and forth. The multiple clamping blocks 3a form a clamping area for clamping the bed core 6. A strip-shaped notch 3a1 is provided on the side of the top wall of the clamping block 3a near the clamping area, and the strip-shaped notch 3a1 is arranged to extend from left to right. The inner wall of the strip-shaped notch 3a1 has a support surface 3a2 with an arc-shaped cross section. The pressing member 3b is provided directly above each support surface 3a2, and a clamping opening for pressing the frame 7 is formed between the pressing member 3b and the corresponding support surface 3a2. A driving mechanism for moving the corresponding pressing member 3b back and forth is provided on the side of the clamping block 3a away from the clamping area.

[0033] In use, the robotic arm places the bed core 6 flat on the substrate 1. Then, the clamping block 3a approaches and clamps the bed core 6 under the action of the translation mechanism 9. Next, the robotic arm places the frame 7 horizontally into the support surface 3a2 and presses it down by the pressure member 3b. Then, the frame 7 and the bed core 6 are nailed together by a nail gun. After the nailing operation is completed, the clamping block 3a is reset, and the pressure member 3b moves away from the clamping block 3a under the action of the drive mechanism and is offset from the position of the corresponding support surface 3a2.

[0034] When clamping and positioning the frame 7, simply place the frame 7 flat on the support surface 3a2 and press the frame 7 down by moving the pressure piece 3b. In this way, the pressure piece 3b does not contact the frame 7 during the movement towards the frame 7, thereby effectively preventing the frame 7 from shifting during the clamping process and ensuring that the assembly process of the bed core 6 frame 7 is stable and accurate.

[0035] In this embodiment,

[0036] Each clamping assembly includes two clamping units 3.

[0037] like Figure 3 and Figure 4 As shown, the inner wall of the strip-shaped notch 3a1 consists of a side surface, a bottom surface, and the aforementioned support surface 3a2. The side surface is an inclined guide surface 3a3, and the bottom surface is flat. The side surface and the bottom surface are connected by the aforementioned support surface 3a2. This design not only facilitates processing, but the guide surface 3a3 also acts as a guide, forcibly correcting the position of the frame 7 and ensuring that the frame 7 accurately falls onto the support surface 3a2, making the assembly process more stable and smoother.

[0038] Each clamping unit 3 includes at least two clamping blocks 3a. Multiple clamping blocks 3a in the same clamping unit 3 are arranged side by side and fixed to the same support plate 8. A translation mechanism 9 is connected to the corresponding support plate 8. The number of pressure members 3b and clamping blocks 3a are the same and their positions correspond one-to-one. A drive mechanism is used to drive the movement of multiple pressure members 3b in the same clamping unit 3. By increasing the number of pressure members 3b and clamping blocks 3a, the positioning strength and stability of the bed core 6 and the frame 7 can be enhanced. Preferably, each clamping unit 3 includes two clamping blocks 3a.

[0039] The drive mechanism is specifically structured as follows: It includes a rotary clamping cylinder 4, with the same number of cylinders and clamping blocks 3a, and their positions correspond one-to-one. The rotary clamping cylinder 4 is an existing product, comprising a piston rod, a swing block 4a fixed to the top of the piston rod, and a cylinder body fixedly connected to the corresponding clamping block 3a. The piston rod and swing block 4a are respectively arranged vertically and horizontally, and the aforementioned pressure component 3b is a pressure rod vertically fixed to the lower side of the swing block 4a. In actual products, the combination of the rotary clamping cylinder 4 and the pressure rod can be directly obtained from the market, which not only effectively simplifies the structure but also greatly reduces the design and assembly difficulty.

[0040] To further explain, in the same clamping unit 3, the lower ends of several clamping blocks 3a are fixedly connected to the aforementioned support plate 8, and the upper ends of several clamping blocks 3a are connected together through long plates 5, with the aforementioned driving mechanism mounted on the corresponding long plates 5. This design effectively enhances the rigidity of the clamping blocks 3a, thereby simultaneously improving the strength and stability of the clamping bed core 6 and the frame 7.

[0041] like Figure 2 As shown, the support plate 8 is slidably mounted on the base plate 1, allowing for more stable and precise sliding. Preferably, the support plate 8 is slidably connected to the base plate 1 via a guide rail slider structure. Of course, it is also possible for the support plate 8 to be slidably connected to the base plate 1 via a slider structure with a groove 2b.

[0042] The translation mechanism 9 can be a cylinder, an electric push rod, a linear motor, etc. Preferably, the translation mechanism 9 is a linear motor, which includes a horizontally arranged drive plate fixed to the underside of the support plate 8.

[0043] Example 2: The structure and principle of Example 2 are basically the same as those of Example 1. The difference is that the driving mechanism includes a connecting plate, a telescopic cylinder fixed on the connecting plate, and a driving component for driving the connecting plate to move back and forth. The telescopic cylinder and the clamping block 3a are the same in number and their positions correspond one-to-one. The pressing component 3b is the piston rod of the telescopic cylinder. The driving component is fixed to the clamping block 3a through a bracket.

[0044] Example 3: The structure and principle of Example 3 are basically the same as those of Example 1. The difference is that the guide block 2 is slidably connected to the base plate 1 through the guide rail slider structure, and the locking component is a cylinder installed on the base plate 1, and the cylinder piston rod is fixedly connected to the corresponding guide block 2.

[0045] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. Positioning fixture for assembling a bed core frame, comprising a base plate (1) for carrying a bed core (6), characterized in that, The substrate (1) is provided with two groups of clamping assemblies arranged front and back; the clamping assembly includes at least one clamping unit (3), and a plurality of clamping units (3) in the same clamping assembly are arranged side by side; the clamping unit (3) includes a vertically arranged clamping block (3a), a liftable pressing piece (3b), and a translation mechanism (9) for driving the clamping block (3a) to translate front and back, and a plurality of clamping blocks (3a) enclose a clamping area for clamping the bed core (6); the top wall of the clamping block (3a) is provided with a strip-shaped notch (3a1) on the side close to the clamping area, and the strip-shaped notch (3a1) is arranged left and right through, and the inner wall of the strip-shaped notch (3a1) has a support surface (3a2) with a circular arc cross section, and above each support surface (3a2) is provided with the above-mentioned pressing piece (3b), and the pressing piece (3b) and the corresponding support surface (3a2) form a clamping opening for pressing the frame (7); the side of the clamping block (3a) away from the clamping area is provided with a driving mechanism for moving the corresponding pressing piece (3b) front and back.

2. The locating fixture for assembling a bed core border according to claim 1, wherein The inner wall of the above-mentioned strip-shaped notch (3a1) is composed of a side surface, a bottom surface and the above-mentioned support surface (3a2), and the side surface is an inclined guide surface (3a3), and the side surface and the bottom surface are connected by the above-mentioned support surface (3a2).

3. The locating fixture for assembling a bed core border according to claim 1 or 2, characterized in that, Each clamping unit (3) includes at least two clamping blocks (3a), and a plurality of clamping blocks (3a) in the same clamping unit (3) are arranged side by side and fixed to the same support plate (8), and the above-mentioned translation mechanism (9) is connected to the corresponding support plate (8), the number of pressing pieces (3b) and clamping blocks (3a) is the same and one-to-one corresponding, and the driving mechanism is used for driving a plurality of pressing pieces (3b) in the same clamping unit (3) to act.

4. The locating fixture for assembling a bed core border according to claim 3, wherein The driving mechanism includes a rotary clamping cylinder (4), and the number of rotary clamping cylinders (4) and clamping blocks (3a) is the same and one-to-one corresponding; the rotary clamping cylinder (4) includes a piston rod, a swing block (4a) fixed on the top of the piston rod, and a cylinder body fixed with the corresponding clamping block (3a), and the above-mentioned pressing piece (3b) is a pressing rod vertically fixed on the lower side of the swing block (4a).

5. The locating fixture for assembling a bed core border according to claim 4, wherein In the same clamping unit (3), the lower ends of the clamping blocks (3a) are fixed to the above-mentioned support plate (8), and the upper ends of the clamping blocks (3a) are connected together through a long plate (5), and the above-mentioned driving mechanism is arranged on the corresponding long plate (5).

6. The locating fixture for assembling a bed core border according to claim 3, wherein The above-mentioned support plate (8) is slidably arranged on the substrate (1).

7. The locating fixture for assembling a bed core border according to claim 1, wherein The substrate (1) is also fixed with a plurality of guide blocks (2) distributed in a rectangular or square shape, and the plurality of guide blocks (2) enclose an accommodation space matching the shape and size of the bed core (6).

8. The locating fixture for assembling a bed core border according to claim 7, wherein The upper end of the guide block (2) close to the side of the accommodation space is an inclined guide surface (2a).

9. The locating fixture for assembling a bed core border according to claim 7 or 8, wherein The guide block (2) can slide horizontally and linearly to change the area of the accommodation space, and the guide block (2) is locked at the sliding position by a locking piece.

10. The locating fixture for assembling a bed core border according to claim 9, wherein The guide block (2) is pressed against the base plate (1), the lower end of the guide block (2) opposite to the containing space has a vertical sliding slot (2b), the length of the sliding slot (2b) extends along the sliding direction of the guide block (2), the base plate (1) is provided with threaded holes, the number of the threaded holes and the sliding slots (2b) is the same and the positions are one-to-one corresponding, the locking member is a bolt arranged in the sliding slot (2b), the rod of the bolt is screwed into the corresponding threaded hole, and the head of the bolt is pressed against the corresponding guide block (2).

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