A seat framework clamp quick change device

Abstract

The utility model provides a kind of seat framework clamp quick change device, including workstation rotary table and quick change fork truck, two workstation datum seat are provided on workstation rotary table, bottom is provided with quick change fork truck guide structure, clamp quick change frame is installed on workstation rotary table, the shape of workstation datum seat is rectangle, positioning slot is opened in the top of workstation datum seat, positioning hole is opened on positioning slot, two fish eye bolts are provided on workstation datum seat, connecting plate connected with working in datum seat is respectively provided in the both sides of clamp quick change frame, connecting plate is provided with the positioning pin matched with positioning hole, the connecting hole matched with fish eye bolt;Fork truck guide mechanism is quickly completed coarse positioning, positioning pin and positioning hole complete accurate positioning, reduce the time of changing type, improve changing type efficiency;With precision, positioning accuracy is high, avoid secondary calibration process;The positioning of quick change mechanism is simple, convenient to replace;Maintenance cost is low;Safety and stability are high.

Description

Technical Field

[0001] This utility model relates to the technical field of welding tooling, and in particular to a quick-change device for seat frame clamps. Background Technology

[0002] In the welding production process, welding fixtures are key equipment to ensure the welding accuracy and consistency of workpieces. As the manufacturing industry shifts towards multi-variety, small-batch production, production lines need to frequently switch between welding fixtures for different car models and configurations. The seat frame is the core load-bearing structure of a car seat, and its welding accuracy directly affects the stability of seat assembly (such as slide rail clearance and seat adjustment functionality). Traditional welding fixture changeover methods have the following drawbacks:

[0003] Low changeover efficiency: Traditional fixtures are mostly rigidly connected to the worktable with bolts. The mounting surface is large and there are many bolts. When changing, tools are needed to disassemble and install bolts one by one. The changeover time is usually 15-30 minutes, which seriously affects the production line cycle time.

[0004] Poor positioning accuracy: After multiple disassemblies, the bolt holes are prone to wear, and the fixture reference is prone to shift during reinstallation, resulting in excessive errors in the welding position of the skeleton, requiring additional welding accuracy calibration.

[0005] High operational complexity: The changeover process requires 2-3 people to work together and has high skill requirements for operators. Improper operation can easily lead to fixture damage, precision failure, and personnel injury.

[0006] Therefore, there is an urgent need for a quick-change mechanism for seat frame welding fixtures that combines "high changeover efficiency, stable and reliable positioning, and simple operation" to resolve the dual contradiction between changeover efficiency and welding accuracy on the production line. Utility Model Content

[0007] This utility model aims to provide a quick-change device for seat frame clamps. By cooperating with positioning pins and positioning holes, the positioning accuracy of the quick-change clamp is improved, the changeover time is short, the structure is simple and reliable, the maintenance cost is low, and the operation is convenient.

[0008] Therefore, the technical solution adopted by this utility model is as follows: a quick-change device for a seat frame clamp, including a workstation turntable and a quick-change forklift. Two workstation reference seats are arranged on the left and right sides of the workstation turntable. A quick-change forklift guide structure for the quick-change forklift to quickly enter and exit the workstation is provided at the bottom of the workstation turntable. A clamp quick-change frame is installed on the workstation turntable. The workstation reference seats are rectangular in shape. A positioning groove is opened on the top of the workstation reference seats. A positioning hole is opened on the positioning groove. Two fisheye bolts are provided on the workstation reference seats. Connecting plates that connect to the workstation reference seats are respectively provided on both sides of the clamp quick-change frame. The connecting plates are provided with positioning pins that match the positioning holes and connecting holes that match the fisheye bolts.

[0009] As a preferred embodiment of the above solution, the quick-change forklift guide structure includes two guide plates respectively disposed on the inner side of the workstation turntable, two positioning baffles disposed on the inner side of the two guide plates, and multiple guide wheels for sliding on the side edges of the guide plates are respectively disposed on the left and right sides of the quick-change forklift. The guide wheels are installed in the mounting grooves on both sides of the quick-change forklift, and the end of the mounting groove is provided with a positioning pin that matches the positioning baffle.

[0010] More preferably, the workstation reference base has four countersunk holes and two pin holes on its side for connection with the workstation turntable, and the fisheye bolts are connected to both sides of the workstation reference base by pins. The workstation reference base includes a first workstation reference base with a positioning sleeve installed on the positioning groove and a second workstation reference base with two positioning guide blocks installed on the left and right sides of the positioning groove.

[0011] More preferably, the quick-change fixture frame is a rectangular frame, the connecting plate is an "L" shape and is set on the left and right sides of the quick-change fixture frame. The connecting plate includes a vertical plate connected to the rectangular frame structure and a horizontal plate connected to the working reference seat. The positioning pin is set on the lower surface of the horizontal plate, and the connecting hole is opened at the front and rear ends of the horizontal plate.

[0012] The beneficial effects of this utility model are as follows: The forklift guiding mechanism allows the quick-change fixture and workstation base to quickly complete coarse positioning, followed by precise positioning via the positioning pins on the quick-change fixture and the positioning holes on the workstation base, reducing changeover time and improving changeover efficiency; the precise fit between the positioning pins and positioning holes ensures high positioning accuracy, eliminating the need for secondary calibration; the quick-change mechanism is simple to position and easy to replace; the applied guiding and stopping mechanisms are adjustable, resulting in low maintenance costs; a single person can complete the changeover operation without requiring specialized skills, reducing labor costs; and it offers high safety and stability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the workstation reference base in this utility model.

[0015] Figure 3 This is a schematic diagram of the forklift guide structure in this utility model.

[0016] Figure 4 This is a structural schematic diagram of the quick-change forklift in this utility model.

[0017] Figure 5 This is a structural schematic diagram of the quick-change fixture frame in this utility model. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] like Figures 1-5 As shown, a quick-change device for a seat frame clamp includes a workstation turntable 1 and a quick-change forklift 4. Two workstation reference seats 2 are arranged on the left and right sides of the workstation turntable 1. The workstation reference seats 2 are rectangular in shape. A positioning groove 201 is opened on the top of the workstation reference seat 2. A positioning hole 202 is opened on the positioning groove 201. Two fish-eye bolts 203 are provided on the workstation reference seat 2. Four countersunk holes 204 and two pin holes 205 are provided on the side of the workstation reference seat 2 for connecting with the workstation turntable 1. The fish-eye bolts 203 are connected to both sides of the workstation reference seat 2 by pins. The workstation reference seat 2 includes a first workstation reference seat 2 with a positioning sleeve 206 installed on the positioning groove 201 and a second workstation reference seat 2 with two positioning guide blocks 207 installed on the left and right sides of the positioning groove 201.

[0020] During operation, the reference base is connected to the flange on the workstation turntable 1 by setting hexagonal bolts and pins in the four countersunk holes 204 and the two pin holes 205 respectively. The flange positions the reference base during operation, which facilitates the positioning of the reference base on the quick-change fixture 5 in subsequent operations.

[0021] A quick-change fixture frame 5 is installed on the workstation turntable 1. Connecting plates 501, which connect to the working reference base, are respectively provided on both sides of the quick-change fixture frame 5. The connecting plates 501 are provided with positioning pins 502 that match the positioning holes 202 and connecting holes 503 that match the fisheye bolts 203. The quick-change fixture frame 5 is a rectangular frame, and the connecting plates 501 are L-shaped and located on the left and right sides of the quick-change fixture frame 5. The connecting plates 501 include a vertical plate connected to the rectangular frame structure and a horizontal plate connected to the working reference base. The positioning pins 502 are located on the lower surface of the horizontal plate, and the connecting holes 503 are located at the front and rear ends of the horizontal plate. The quick-change fixture frame 5 is precisely positioned using the positioning pins 502 and the positioning holes 202, facilitating its installation.

[0022] The bottom of the workstation turntable 1 is provided with a quick-change forklift guide structure 3 for quick-change forklift 4 to quickly enter and exit the workstation. The quick-change forklift guide structure 3 includes two guide plates 301 respectively set on the inner side of the workstation turntable 1. Two positioning baffles 302 are set on the inner side of the two guide plates 301. Multiple guide wheels 401 for sliding on the side edge of the guide plates 301 are respectively set on the left and right sides of the quick-change forklift 4. The guide wheels 401 are installed in the mounting grooves 402 on both sides of the quick-change forklift 4. The end of the mounting groove 402 is provided with a positioning pin 403 that matches the positioning baffle 302.

[0023] The forklift guide mechanism enables the quick-change fixture 5 and the workstation reference base 2 to quickly complete coarse positioning, and then complete precise positioning through the positioning pin 502 on the quick-change fixture 5 and the positioning hole 202 on the workstation reference base 2, reducing changeover time and improving changeover efficiency. The precise fit between the positioning pin 502 and the positioning hole 202 ensures high positioning accuracy and avoids secondary calibration. The quick-change mechanism is simple to position and easy to replace. The applied guide and stop mechanisms are adjustable, resulting in low maintenance costs. Changeover operations can be completed by a single person without professional skills, reducing labor costs. It also offers high safety and stability.

[0024] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A quick-change device for a seat frame clamp, comprising a workstation turntable (1) and a quick-change forklift (4), characterized in that: Two workstation reference seats (2) are arranged on the left and right sides of the workstation turntable (1). A quick-change forklift guide structure (3) for quick-change forklifts (4) to quickly enter and exit the workstation is provided at the bottom of the workstation turntable (1). A clamp quick-change frame (5) is installed on the workstation turntable (1). The workstation reference seat (2) is rectangular in shape. A positioning groove (201) is opened on the top of the workstation reference seat (2). A positioning hole (202) is opened on the positioning groove (201). Two fish-eye bolts (203) are provided on the workstation reference seat (2). Connecting plates (501) that connect to the working reference seat are respectively provided on both sides of the clamp quick-change frame (5). A positioning pin (502) that matches the positioning hole (202) and a connecting hole (503) that matches the fish-eye bolt (203) are provided on the connecting plate (501).

2. The quick-change device for a seat frame clamp according to claim 1, characterized in that: The quick-change forklift guide structure (3) includes two guide plates (301) respectively set inside the workstation turntable (1). Two positioning baffles (302) are set inside the two guide plates (301). Multiple guide wheels (401) for sliding on the side edge of the guide plates (301) are respectively set on the left and right sides of the quick-change forklift (4). The guide wheels (401) are installed in the mounting grooves (402) on both sides of the quick-change forklift (4). The end of the mounting groove (402) is provided with a positioning pin (403) that matches the positioning baffle (302).

3. The quick-change device for a seat frame clamp according to claim 1, characterized in that: The workstation reference base (2) has four countersunk holes (204) and two pin holes (205) on its side for connection with the workstation turntable (1). The fisheye bolts (203) are connected to both sides of the workstation reference base (2) by pins. The workstation reference base (2) includes a first workstation reference base (2) with a positioning sleeve (206) installed on the positioning groove (201) and a second workstation reference base (2) with two positioning guide blocks (207) installed on the left and right sides of the positioning groove (201).

4. The quick-change device for a seat frame clamp according to claim 3, characterized in that: The quick-change fixture (5) is a rectangular frame, and the connecting plate (501) is an "L" shaped plate, which is set on the left and right sides of the quick-change fixture (5). The connecting plate (501) includes a vertical plate connected to the rectangular frame structure and a horizontal plate connected to the working reference seat. The positioning pin (502) is set on the lower surface of the horizontal plate, and the connecting hole (503) is opened at the front and rear ends of the horizontal plate.

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