Chair frame welding tool for blood sampling chair production

Abstract

The invention belongs to the technical field of workpiece welding and fixing, and relates to a chair frame welding tool for blood sampling chair production, which comprises a rack, rotating shafts, connecting rings, a connecting frame, an electric push rod, a top frame and a bearing plate, the upper parts of the two sides of the rack are rotatably connected with the rotating shafts, and the sides, close to each other, of the two rotating shafts are connected with the connecting rings; a connecting frame is connected between the two connecting rings, electric push rods are installed on the two sides of the middle of the rack, telescopic rods of the electric push rods are connected with top frames, and a bearing plate is connected between the two top frames. After the chair frame is fixed and limited, one face of the chair frame can be welded, after one face of the chair frame is welded, the other face of the chair frame can be welded only by controlling a connecting ring to rotate, the chair frame does not need to be manually loosened and then turned over, operation is more convenient, and the welding efficiency is higher.

Description

Technical Field

[0001] The present invention belongs to the technical field of workpiece welding and fixing, and relates to a welding tool for a chair frame in the production of a blood collection chair. Background Art

[0002] In the field of medical equipment manufacturing, especially for products like blood collection chairs, their comfort, stability, and safety are directly related to the quality of the user experience. During the production of a blood collection chair, several different brackets and support rods need to be welded together to form a chair frame, and then instruments for assisting blood collection are installed on the chair frame.

[0003] Currently, during the production of a blood collection chair, it is usually completed by manual operation or a welding robot. In the specific welding process, whether it is mechanical welding or manual welding, the chair frame components need to be spliced first before starting the welding operation. However, during the welding process, when one side is welded, it is often necessary to manually flip the chair frame to weld the other side, which means that the fixed state of the chair frame needs to be released for flipping. This process not only increases the complexity and difficulty of the operation but also prolongs the entire production cycle, thus affecting the overall production efficiency. Summary of the Invention

[0004] In view of this, the present invention provides a welding tool for a chair frame in the production of a blood collection chair.

[0005] Technical Solution: A welding tool for a chair frame in the production of a blood collection chair includes a frame, a rotating shaft, a connecting ring, a connecting frame, an electric push rod, a top frame, a supporting plate, a locking assembly, a fixing mechanism, and a pressing mechanism. The upper parts on both sides of the frame are rotatably connected with rotating shafts. Connecting rings are connected to the sides of the two rotating shafts close to each other. A connecting frame is connected between the two connecting rings. Electric push rods are installed on both sides of the middle of the frame. A top frame is connected to the telescopic rod of the electric push rod. A supporting plate is connected between the two top frames. A locking assembly for locking the connecting ring is provided on the frame. A fixing mechanism for fixing the chair frame is provided on the supporting plate. A pressing mechanism is provided on the connecting ring.

[0006] As a preferred technical solution of the present invention, the locking assembly includes a locking shaft and an elastic member I. The upper parts on both sides of the frame are slidably connected with locking shafts. Locking holes are evenly spaced along the circumferential direction on the connecting ring. The locking shaft can be inserted into the locking holes. An elastic member I is connected between the locking shaft and the frame.

[0007] As a preferred technical solution of the present invention, the fixing mechanism includes an adjusting screw rod I, a sliding frame, a locking block and a positioning block. The lower part of the supporting plate is rotatably connected with the adjusting screw rod I. Three groups of adjusting threads are evenly spaced on the adjusting screw rod I. Each group of adjusting threads has two threads and the thread directions are opposite. Three groups of sliding frames are evenly spaced and slidably connected on the supporting plate. Each group of sliding frames has two. The six sliding frames are respectively in threaded cooperation with the six adjusting threads on the adjusting screw rod I. The top of the sliding frame is connected with a locking block. Three groups of positioning blocks are evenly spaced and connected to the top of the supporting plate. Each group of positioning blocks has two.

[0008] As a preferred technical solution of the present invention, the pressing mechanism includes a connecting plate, an adjusting screw rod II, a sliding block and an arc magnet. A connecting plate is connected between the two connecting rings. The top of the connecting plate is rotatably connected with the adjusting screw rod II. Three groups of adjusting threads are evenly spaced on the adjusting screw rod II. Each group of adjusting threads has two threads and the thread directions are opposite. Three groups of sliding blocks are evenly spaced and slidably connected on the connecting plate. Each group of sliding blocks has two. The six sliding blocks are respectively in threaded cooperation with the six adjusting threads on the adjusting screw rod II. The bottom of the sliding block is connected with an arc magnet, and the arc magnet can attract the chair frame.

[0009] As a preferred technical solution of the present invention, a buffer mechanism is further included. The buffer mechanism includes a fixed block and an elastic member II. Fixed blocks are slidably connected to the mutually approaching sides of the locking blocks on the same group of sliding frames. An elastic member II is connected between the fixed block and the locking block.

[0010] As a preferred technical solution of the present invention, a locking mechanism is further included. The locking mechanism includes a connecting block, a sliding plate, an elastic member III and a fixed shaft. Connecting blocks are connected to the lower parts of both sides of the arc magnet. A sliding plate is slidably connected to the connecting block. A plurality of fixed shafts are evenly spaced and connected to the mutually approaching sides of the two sliding plates on both sides. The bottom of the mutually approaching side surfaces of the fixed shafts on both sides is inclined. An elastic member III is connected between the fixed shaft and the sliding plate.

[0011] As a preferred technical solution of the present invention, a magnetic block is further included. Magnetic blocks are connected to the mutually approaching sides of the two positioning blocks in each group, and the magnetic blocks can attract the chair frame.

[0012] As a preferred technical solution of the present invention, a lifting frame and a pressing plate are further included. A lifting frame is slidably connected to the sliding block. Pressing plates are connected to the lower parts of both sides of the lifting frame, and the pressing plates are in contact with the inner side of the sliding plate.

[0013] Compared with the prior art, the present invention has the following advantages: 1. After the chair frame is fixed and limited, the present invention can weld one side of the chair frame. After welding one side of the chair frame, only by controlling the rotation of the connecting ring can the other side of the chair frame be welded, without the need for manual loosening and flipping of the chair frame, which is more convenient in operation and has higher welding efficiency.

[0014] 2. Before welding the chair frame, the present invention can hold the chair frame by the fixed shaft to assist in fixing the chair frame, and the arc-shaped magnet and the fixed shaft cooperate to stabilize the chair frame during flipping, ensuring the stability during the flipping process of the chair frame. Brief Description of the Drawings

[0015] Figure 1 is a schematic three-dimensional structure diagram of the present invention.

[0016] Figure 2 is a sectional view of the present invention.

[0017] Figure 3 is a schematic structure diagram of the fixing mechanism of the present invention.

[0018] Figure 4 is a schematic structure diagram of the pressing mechanism of the present invention.

[0019] Figure 5 is a schematic structure diagram of the buffer mechanism of the present invention.

[0020] Figure 6 is a schematic diagram of the first structure of the locking mechanism of the present invention.

[0021] Figure 7 is a schematic diagram of the second structure of the locking mechanism of the present invention.

[0022] Figure 8 is a schematic structure diagram of the magnet, positioning block and supporting plate of the present invention.

[0023] Figure 9 is a schematic structure diagram of the lifting frame, pressing plate and sliding plate of the present invention.

[0024] Reference Numerals in the Drawings: 1 - frame, 2 - rotating shaft, 3 - connecting ring, 4 - connecting frame, 51 - locking shaft, 52 - first elastic member, 61 - electric push rod, 62 - top frame, 7 - supporting plate, 71 - first adjusting screw, 72 - sliding frame, 73 - locking block, 74 - positioning block, 81 - connecting plate, 82 - second adjusting screw, 83 - sliding block, 84 - arc-shaped magnet, 91 - fixing block, 92 - second elastic member, 101 - connecting block, 102 - sliding plate, 103 - third elastic member, 104 - fixed shaft, 11 - magnet, 12 - lifting frame, 13 - pressing plate, 100 - chair frame. Detailed Embodiments

[0025] The embodiments of the present invention will be described below with reference to the accompanying drawings.

[0026] A welding tooling for a chair frame in the production of a blood collection chair, as Figures 1-4 shown, includes a frame 1, a rotating shaft 2, a connecting ring 3, a connecting frame 4, an electric push rod 61, a top frame 62, a supporting plate 7, a locking assembly, a fixing mechanism and a pressing mechanism. Rotating shafts 2 are rotatably connected to the upper parts on the left and right sides of the frame 1. Connecting rings 3 are connected to the sides of the two rotating shafts 2 close to each other. A connecting frame 4 is connected between the two connecting rings 3. Electric push rods 61 are installed on the left and right sides in the middle of the frame 1. A top frame 62 is connected to the telescopic rod of the electric push rod 61. A supporting plate 7 is connected between the two top frames 62. The chair frame 100 can be placed on the supporting plate 7, and the chair frame 100 is placed through the supporting plate 7. A locking assembly for locking the connecting ring 3 is provided on the frame 1. A fixing mechanism for fixing the chair frame 100 is provided on the supporting plate 7. A pressing mechanism is provided on the connecting ring 3.

[0027] As Figure 1 shown, the locking assembly includes a locking shaft 51 and a first elastic member 52. Locking shafts 51 are slidably connected to the upper parts on the left and right sides of the frame 1. Locking holes are evenly spaced along the circumferential direction on the connecting ring 3. The locking shaft 51 can be inserted into the locking hole to fix the connecting ring 3. A first elastic member 52 is connected between the locking shaft 51 and the frame 1. The first elastic member 52 is a compression spring.

[0028] As Figures 2-4 shown, the fixing mechanism includes an adjusting screw rod 71, a sliding frame 72, a locking block 73 and a positioning block 74. The adjusting screw rod 71 is rotatably connected to the lower part of the supporting plate 7. Three groups of adjusting threads are evenly spaced on the adjusting screw rod 71. Each group of adjusting threads has two threads with opposite thread directions. Three groups of sliding frames 72 are slidably connected to the supporting plate 7 at equal intervals. Each group of sliding frames 72 has two. The six sliding frames 72 are in threaded cooperation with the six adjusting threads on the adjusting screw rod 71 respectively, so that when the adjusting screw rod 71 rotates, it can drive the two sliding frames 72 in the same group to approach each other through the adjusting threads. A locking block 73 is connected to the top of the sliding frame 72. The locking block 73 is used to lock the chair frame 100. Three groups of positioning blocks 74 are evenly spaced and connected to the top of the supporting plate 7. Each group of positioning blocks 74 has two and is symmetrically distributed front and back. The positioning block 74 can position the chair frame 100.

[0029] As Figures 2-4As shown, the pressing mechanism includes a connecting plate 81, an adjusting screw rod II 82, a sliding block 83 and an arc-shaped magnet 84. A connecting plate 81 is connected between two connecting rings 3. The top of the connecting plate 81 is rotatably connected with an adjusting screw rod II 82. Three groups of adjusting threads are evenly spaced on the adjusting screw rod II 82. Each group of adjusting threads has two threads and the thread directions are opposite. Three groups of sliding blocks 83 are evenly spaced and slidably connected to the connecting plate 81. Each group of sliding blocks 83 has two. The six sliding blocks 83 are respectively in threaded cooperation with the six adjusting threads on the adjusting screw rod II 82, so that when the adjusting screw rod II 82 rotates, it can drive the two sliding blocks 83 in the same group to approach each other through the adjusting threads. The bottom of the sliding block 83 is connected with an arc-shaped magnet 84, and the arc-shaped magnet 84 can attract the chair frame 100.

[0030] When welding the chair frame 100 is required, this device can be used. During use, first place the chair frame 100 on the supporting plate 7. When placing, the brackets and support rods of three groups of chair frames 100 can be placed at the same time. The two support rods of the chair frame 100 respectively abut against the positioning blocks 74 on both sides, and the brackets are respectively placed between the locking blocks 73 on the three groups of sliding frames 72. The placed brackets are located below the arc-shaped magnet 84. After placing, the adjusting screw rod I 71 can be operated to rotate. When the adjusting screw rod I 71 rotates, it can drive the two sliding frames 72 in multiple groups to approach each other, so as to drive the locking blocks 73 on both sides to approach the brackets of the chair frame 100, so that the brackets abut against the support rods to assist in fixing the brackets and support rods. At this time, control the telescopic rod of the electric push rod 61 to extend to drive the top frame 62 to move upward. The upward movement of the top frame 62 drives the supporting plate 7 to move upward. The upward movement of the supporting plate 7 can drive the brackets and support rods to move upward until the brackets move to abut against the arc-shaped magnet 84. The brackets are fixed by the arc-shaped magnet 84. At this time, the welding work can be carried out, and the contact positions of the support rods and brackets are welded to form the chair frame 100. After welding one side of the chair frame 100, the telescopic rod of the electric push rod 61 can be controlled to retract to drive the top frame 62 and the supporting plate 7 to move downward. At this time, since the chair frame 100 is attracted by the arc-shaped magnet 84 and will not move, pull the locking shaft 51 to disengage from the locking hole, and the elastic member I 52 is compressed. Then control the connecting ring 3 to rotate 180 degrees. When the connecting ring 3 rotates, it can drive the connecting plate 81 to rotate, so as to drive the arc-shaped magnet 84 to rotate, so as to drive the chair frame 100 to rotate 180 degrees. Then the other side of the chair frame 100 can be welded. In this way, it is more convenient to weld the chair frame 100, and it is also more convenient to turn it over during the welding process.

[0031] As Figure 5As shown, it further includes a buffer mechanism. The buffer mechanism includes a fixed block 91 and an elastic member II 92. Fixed blocks 91 are slidably connected to the mutually approaching sides of the locking blocks 73 on the same set of sliding frames 72. An elastic member II 92 is connected between the fixed block 91 and the locking block 73, and the elastic member II 92 is a connecting spring.

[0032] When the locking block 73 clamps the bracket, the bracket can be pressed by the cooperation of the fixed block 91 and the elastic member II 92. The elastic member II 92 can apply pressure to the fixed block 91, so that the fixed block presses the bracket tightly to ensure the stability during fixation.

[0033] As Figure 6 and Figure 7 As shown, it further includes a locking mechanism. The locking mechanism includes a connecting block 101, a sliding plate 102, an elastic member III 103 and a fixed shaft 104. Connecting blocks 101 are connected to the lower parts on the left and right sides of the arc-shaped magnet 84. A sliding plate 102 is slidably connected to the connecting block 101. A plurality of fixed shafts 104 are evenly spaced and connected to the mutually approaching sides of the two sliding plates 102 on both sides. The bottom of the mutually approaching side surfaces of the fixed shafts 104 on both sides is inclined. An elastic member III 103 is connected between the fixed shaft 104 and the sliding plate 102, and the elastic member III 103 is a tension spring.

[0034] When the chair frame 100 moves upward, it will contact the inclined surface of the fixed shaft 104, thereby squeezing the fixed shaft 104 to move outward. The elastic member III 103 is stretched. When the fixed shaft 104 moves, it drives the sliding plate 102 to move until the chair frame 100 moves upward above the fixed shaft 104. At this time, under the action of the elastic member III 103, the fixed shaft 104 resets to block the chair frame 100. Subsequently, during the process of controlling the flipping of the chair frame 100, the chair frame 100 can be limited by the cooperation of the fixed shaft 104 and the arc-shaped magnet 84, which can avoid the position of the chair frame 100 from shifting during the flipping process and ensure the stability of the chair frame 100 during the flipping process. When it is necessary to release the chair frame 100, the two sliding plates 102 can be pulled to move away from each other, driving the two fixed shafts 104 to move away from each other and no longer block the chair frame 100. Subsequently, the chair frame 100 can be removed.

[0035] As Figure 8 As shown, it further includes a magnetic block 11. Magnetic blocks 11 are connected to the mutually approaching sides of the two positioning blocks 74 in each group, and the magnetic blocks 11 can attract the chair frame 100.

[0036] When the support rod of the chair frame 100 is placed, the support rod can be attracted by the magnetic block 11 to assist in fixing the support rod, avoiding the position from shifting when controlling the flipping of the chair frame 100 and ensuring the stability during the flipping process of the chair frame 100.

[0037] AsFigure 9 As shown, it further includes a lifting frame 12 and a pressing plate 13. The lifting frame 12 is slidably connected to the sliding block 83. The lifting frame 12 can slide up and down along the sliding block 83. The lower parts of the left and right sides of the lifting frame 12 are both connected with a pressing plate 13. The pressing plate 13 contacts the inner side of the sliding plate 102, so that the movement of the pressing plate 13 can squeeze the sliding plate 102 to move.

[0038] When it is necessary to release the chair frame 100, squeeze the lifting frame 12 to move downward. When the lifting frame 12 moves downward, it drives the pressing plate 13 to move downward. When the pressing plate 13 moves downward, it can squeeze the two sliding plates 102 to move away from each other. In this way, only by squeezing the lifting frame 12 can the two sliding plates 102 be driven to move away from each other, which is more convenient in operation.

[0039] Although the present disclosure has been described with respect to only a limited number of embodiments, those skilled in the art who benefit from the present disclosure will understand that various other embodiments can be designed without departing from the scope of the present invention. Therefore, the scope of the present invention should be limited only by the appended claims.

Claims

1. A chair frame welding tool for blood collection chair production, characterized in that: The invention comprises a frame (1), a rotating shaft (2), a connecting ring (3), a connecting frame (4), an electric push rod (61), a top frame (62), a supporting plate (7), a locking component, a fixing mechanism and a clamping mechanism. The upper parts of both sides of the frame (1) are rotatably connected to the rotating shaft (2), the sides of the two rotating shafts (2) close to each other are connected to the connecting ring (3), the connecting frame (4) is connected between the two connecting rings (3), the electric push rods (61) are installed on both sides of the middle part of the frame (1), the telescopic rods of the electric push rods (61) are connected to the top frame (62), the supporting plate (7) is connected between the two top frames (62), the frame (1) is provided with a locking component for locking the connecting ring (3), the supporting plate (7) is provided with a fixing mechanism for fixing the chair frame (100), and the connecting ring (3) is provided with a clamping mechanism.

2. The chair frame welding tool for blood collection chair production according to claim 1 is characterized in that: The locking assembly comprises a locking shaft (51) and an elastic member (52); the upper parts of both sides of the frame (1) are slidably connected to the locking shaft (51); the connecting ring (3) is provided with locking holes evenly spaced along the circumference; the locking shaft (51) can be inserted into the locking holes; and the elastic member (52) is connected between the locking shaft (51) and the frame (1).

3. The chair frame welding tool for blood collection chair production according to claim 2 is characterized in that: The fixing mechanism comprises an adjusting screw rod (71), a sliding frame (72), a locking block (73) and a positioning block (74); the lower part of the supporting plate (7) is rotatably connected to the adjusting screw rod (71); three groups of adjusting threads are evenly spaced on the adjusting screw rod (71); each group of adjusting threads has two threads and the threads face opposite directions; three groups of sliding frames (72) are evenly spaced and slidably connected to the supporting plate (7); each group of sliding frames (72) is provided with two threads; six sliding frames (72) are respectively matched with the six adjusting threads on the adjusting screw rod (71); the top of the sliding frame (72) is connected to the locking block (73); the top of the supporting plate (7) is evenly spaced and connected to the three groups of positioning blocks (74); each group of positioning blocks (74) is provided with two threads.

4. The chair frame welding tool for blood collection chair production according to claim 3 is characterized in that: The clamping mechanism comprises a connecting plate (81), an adjusting screw rod 2 (82), a sliding block (83) and an arc-shaped magnet (84). A connecting plate (81) is connected between two connecting rings (3). The top of the connecting plate (81) is rotatably connected to the adjusting screw rod 2 (82). The adjusting screw rod 2 (82) is provided with three groups of adjusting threads evenly spaced apart. Each group of adjusting threads has two threads and the threads face opposite directions. The connecting plate (81) is slidably connected with three groups of sliding blocks (83) evenly spaced apart. Each group of sliding blocks (83) is provided with two. The six sliding blocks (83) are respectively matched with the six adjusting threads on the adjusting screw rod 2 (82). The bottom of the sliding block (83) is connected to an arc-shaped magnet (84). The arc-shaped magnet (84) can attract the chair frame (100).

5. The chair frame welding tool for blood collection chair production according to claim 4 is characterized in that: The invention also comprises a buffer mechanism, the buffer mechanism comprising a fixed block (91) and a second elastic member (92), the locking blocks (73) on the same group of sliding frames (72) being slidably connected to the fixed block (91) on one side close to each other, and the second elastic member (92) being connected between the fixed block (91) and the locking block (73).

6. The chair frame welding tool for blood collection chair production according to claim 5 is characterized in that: The invention also comprises a locking mechanism, the locking mechanism comprising a connecting block (101), a sliding plate (102), a third elastic member (103) and a fixed shaft (104), the lower parts of both sides of the arc-shaped magnet (84) are connected to the connecting blocks (101), the sliding plates (102) are slidably connected to the connecting blocks (101), a side of the sliding plates (102) on both sides close to each other is connected to a plurality of fixed shafts (104) at even intervals, the bottom of a side of the fixed shafts (104) on both sides close to each other is inclined, and the third elastic member (103) is connected between the fixed shaft (104) and the sliding plate (102).

7. The chair frame welding tool for blood collection chair production according to claim 6 is characterized in that: It also includes a magnetic block (11), and each group of two positioning blocks (74) are connected to a magnetic block (11) on one side close to each other, and the magnetic block (11) is capable of attracting the chair frame (100).

8. The chair frame welding tool for blood collection chair production according to claim 7 is characterized in that: It also includes a lifting frame (12) and an extrusion plate (13), wherein the sliding block (83) is slidably connected to the lifting frame (12), and the lower parts of both sides of the lifting frame (12) are connected to the extrusion plates (13), and the extrusion plates (13) are in contact with the inner side of the sliding plate (102).

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