An automatic saw chain guide plate welding device

Abstract

The utility model relates to a kind of automatic welding device of saw chain guide plate for the vertical spot welding based on spot welder of combined steel sheet welding forming saw chain guide plate, the horizontal position of the stacked saw chain guide plate on working plane is adjusted by automatic welding device to thereby automatically welded saw chain guide plate automatic welding device, it is set on the working platform of spot welder, and it includes: two degrees of freedom fixed point frame, for providing the accurate positioning of left and right and front and back two directions;The effective working part of two degrees of freedom fixed point frame is rectangular frame body;The top surface of rectangular frame body is provided with several positioning clamping blocks, positioning clamping block is detachably connected with rectangular frame body, positioning clamping block and rectangular frame body clamping fixed saw chain guide plate positioning frame;One clamping cooperation mechanism is fixed in the side of rectangular frame body, and the working end of clamping cooperation mechanism is fixed with saw chain guide plate positioning frame and cooperates saw chain guide plate.

Description

Technical Field

[0001] This utility model relates to the field of saw chain guide plate processing, specifically to an automatic welding device for saw chain guide plates. Background Technology

[0002] Chain guides, also known as chain plates or saw plates, are the core components of chainsaw transmission systems. Their main function is to support and guide the chainsaw to complete the cutting operation [1]. They are mostly made of 50 manganese steel or 65 manganese steel. According to their structure, they are divided into two types: modular and integral. Modular chainsaws are formed by welding or riveting multiple steel plates and can be divided into stacked and replaceable heads. Integral chainsaws are made by processing a whole steel plate and welding a wear-resistant alloy head, which is more durable.

[0003] This document primarily focuses on the guide plates of welded steel saw chains. Traditionally, the methods involve drilling holes and riveting or drilling holes and welding at the holes. Both methods rely on manual operation. To achieve automated or semi-automated processing, an automated welding solution based on a spot welding machine needs to be designed. Corresponding automated machinery is proposed around this solution to free up manual operation and improve the stability and consistency of the finished product. Summary of the Invention

[0004] This utility model relates to an automatic welding device for saw chain guides made of composite steel plates. The device is based on vertical spot welding using a spot welding machine and uses an automatic welding device to adjust the horizontal position of the stacked saw chain guides on the working plane for automated welding.

[0005] This utility model provides an automatic welding device for saw chain guide plates, which is set on the working platform of a spot welding machine and includes: a two-degree-of-freedom fixed-point frame for providing precise positioning in both left and right and front and back directions; The effective working part of the two-degree-of-freedom fixed-point frame is the rectangular frame; the top surface of the rectangular frame is provided with several positioning clamps, which are detachably connected to the rectangular frame, and the positioning clamps and the rectangular frame clamp and fix the saw chain guide plate positioning frame; a clamping and cooperating mechanism is fixed on the side of the rectangular frame, and the working end of the clamping and cooperating mechanism cooperates with the saw chain guide plate positioning frame to fix the saw chain guide plate.

[0006] The clamping and engaging mechanism includes: at least one pair of synchronously controlled telescopic cylinders, an adjusting plate fixed on the telescopic end of the telescopic cylinders, at least two elongated holes on the adjusting plate, a lower pressing claw fixed below the adjusting plate, a fixing bolt for the lower pressing claw being located in the elongated holes, and the position of the lower pressing claw matching the positioning frame of the saw chain guide plate.

[0007] Each pressing claw has at least two fixing bolts, which are respectively located in two elongated holes; a pad is provided at the bottom of the claw body of the pressing claw.

[0008] To accommodate different models of saw chain guides (which may have different positioning holes), the position of the downward pressure claw needs to be changed while switching the position of the saw chain guide positioning frame. This is to avoid the welding point while providing vertical downward pressure, and to prevent the saw chain guide from detaching from the positioning column due to accidental lifting of the welding point on the spot welding machine, thus avoiding production accidents.

[0009] As a preferred option, a two-degree-of-freedom fixed-point frame includes: The frame can be moved left and right and set on the work platform of the spot welding machine; The first slide rail group consists of two slide rails. The slide rail tracks are set on the work platform of the spot welding machine, and the sliders of the slide rails are set on the bottom surface of the left and right moving frame. The first slide rail group is parallel to the long side of the left and right moving frame. The forward / backward movement box is sized to match the left / right movement box and is positioned above the left / right movement box. The second slide rail group consists of two slide rails. The slide rail track is set on the upper surface of the left and right moving frame and is parallel to the short side of the left and right moving frame. The slider of the slide rail is set on the bottom surface of the front and back moving frame. A second drive device is also provided on the upper surface of the left-right moving frame, and the power output end of the second drive device is fixed to the frame of the front-back moving frame. A first drive device is installed below the work platform of the spot welding machine, and the power output end of the first drive device is fixed to the frame of the left and right moving frame.

[0010] Preferably, the first driving device and the second driving device both use the same driving device; the driving device includes: a pair of hinge seats, a lead screw is provided on the hinge seats, a lead screw block is sleeved on the lead screw, and the lead screw block serves as the power output end of the driving device; a servo motor is provided at one end of the lead screw, and the lead screw drives the servo motor; two limit microswitches are provided between the hinge seats, and the microswitches work in conjunction with the lead screw block.

[0011] The two-degree-of-freedom fixed-point frame primarily provides a mechanism that allows a saw chain guide plate (in this invention, a frame that moves forward and backward in the front and back directions) on the upper frame to slide horizontally, thus enabling welding of the saw chain guide plate without moving the spot welding machine. A servo motor precisely determines the rotation of the lead screw, which is then converted into a movement distance by a lead screw block. The lead screw block drives the frame to move via a connecting block fitted onto it. The only difference between the first and second driving devices is their dimensions. Because the saw chain guide plate has a quasi-elliptical structure with one side longer than the other, the required movement distance for the longer side of the frame is greater than the required movement distance for the shorter side.

[0012] Microswitches can be replaced with other triggers, such as proximity infrared transceiver sensors, to ensure maximum travel and prevent control failure.

[0013] Preferably, a positioning post is screwed onto the top surface of the saw chain guide plate positioning frame, and the height of the positioning post is adjusted according to the thickness of the saw chain guide plate.

[0014] Preferably, the positioning clamp is disposed on the top surface of the front-to-back moving frame and is disposed along the long side of the front-to-back moving frame.

[0015] Positioning blocks are mainly used for positioning frames of saw chain guides. Due to the size and length of the saw chain guide, the positioning frames corresponding to the positioning holes on the saw chain guide are insufficient to support the pressure changes that may occur during welding. In order to ensure the quality of welding, additional saw chain guide positioning frames without positioning posts are often added to both ends and the middle of the saw chain guide for support, while avoiding the welding points.

[0016] The beneficial effects of this utility model are as follows: Attached Figure Description

[0017] Figure 1 Assembly diagram of this utility model; In the diagram: 1. Spot welding machine, 2. Adjustment plate, 3. Lower pressure claw, 4. Positioning clamp block, 5. Saw chain guide plate positioning frame, 6. Forward and backward moving frame, 7. Left and right moving frame, 8. Lead screw, 9. Lead screw block, 10. Servo motor, 11. Right side slide rail, 12. Front side slide rail. Detailed Implementation

[0018] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. Example 1

[0019] like Figure 1 As shown, the automatic welding device for saw chain guide plates is set on the working platform of spot welding machine 1, and includes: a two-degree-of-freedom fixed-point frame for providing precise positioning in both left and right and front and back directions; The effective working part of the two-degree-of-freedom fixed-point frame is the rectangular frame (in this embodiment, the forward and backward moving frame 6 of the two-degree-of-freedom fixed-point frame); the top surface of the rectangular frame is provided with two sets of positioning clamps 4. The positioning clamps of the same set are arranged in a line along the long side of the rectangular frame. The positioning clamps 4 are detachably connected to the rectangular frame. The positioning clamps 4 and the rectangular frame clamp and fix the saw chain guide plate positioning frame 5; a clamping and cooperating mechanism is fixed on the side of the rectangular frame. The working end (lower pressing claw 3) of the clamping and cooperating mechanism cooperates with the saw chain guide plate positioning frame to fix the saw chain guide plate.

[0020] The clamping and engaging mechanism includes: at least one pair of synchronously controlled telescopic cylinders, an adjusting plate 2 fixed on the telescopic end of the telescopic cylinders, at least two elongated holes on the adjusting plate, a lower pressing claw 3 fixed below the adjusting plate, the fixing bolt of the lower pressing claw being set in the elongated holes, and the position of the lower pressing claw matching the positioning frame of the saw chain guide plate.

[0021] Each pressing claw has at least two fixing bolts, which are respectively located in two elongated holes; a pad is provided at the bottom of the claw body of the pressing claw.

[0022] To accommodate different models of saw chain guide plates (which may have different positioning holes), the position of the saw chain guide plate positioning frame needs to be changed along with the specific position of the pressure claw. This is to avoid the welding point while providing vertical downward pressure, and to prevent the saw chain guide plate from detaching from the positioning column due to accidental lifting of the welding point on the spot welding machine, thus avoiding production accidents.

[0023] A two-degree-of-freedom fixed-point frame includes: Move frame 7 left and right to set it on the spot welding machine's working platform; The first slide rail group consists of two slide rails. The slide rail tracks are set on the working platform of the spot welding machine, and the sliders of the slide rails are set on the bottom surface of the left-right moving frame. The first slide rail group is parallel to the long side of the left-right moving frame; whereby... Figure 1 The number 12 is the front slide rail 12 in the first slide rail group.

[0024] The forward / backward movement box 6 is sized to match the left / right movement box and is positioned above the left / right movement box. The second slide rail group consists of two slide rails. The slide rail tracks are set on the upper surface of the left-right moving frame, parallel to the short side of the left-right moving frame, and the slide rail sliders are set on the bottom surface of the front-back moving frame; wherein... Figure 1 Number 7 is the right slide rail 11 in the first slide rail group.

[0025] A second drive device is also provided on the upper surface of the left-right moving frame, and the power output end of the second drive device is fixed to the frame of the front-back moving frame. A first drive device is installed below the work platform of the spot welding machine, and the power output end of the first drive device is fixed to the frame of the left and right moving frame.

[0026] Both the first and second drive devices use the same type of drive device; the drive device includes: a pair of hinge seats, a lead screw is provided on the hinge seats, a lead screw block is sleeved on the lead screw, and the lead screw block serves as the power output end of the drive device; a servo motor is provided at one end of the lead screw, and the lead screw drives the servo motor; two limit microswitches are provided between the hinge seats, and the microswitches work in conjunction with the lead screw block.

[0027] by Figure 1 Taking the second drive device as an example, the servo motor 10 is connected to the lead screw 8, the lead screw block 9 is sleeved on the lead screw 8, the lead screw block 9 is fixed to the connecting block, and the connecting block is fixed to the front and back direction moving frame 6, so that the servo motor 10 drives the front and back direction moving frame 6.

[0028] The two-degree-of-freedom fixed-point frame primarily provides a mechanism that allows a saw chain guide plate (in this invention, a frame that moves forward and backward in the front and back directions) on the upper frame to slide horizontally, thus enabling welding of the saw chain guide plate without moving the spot welding machine. A servo motor precisely determines the rotation of the lead screw, which is then converted into a movement distance by a lead screw block. The lead screw block drives the frame to move via a connecting block fitted onto it. The only difference between the first and second driving devices is their dimensions. Because the saw chain guide plate has a quasi-elliptical structure with one side longer than the other, the required movement distance for the longer side of the frame is greater than the required movement distance for the shorter side.

[0029] Microswitches can be replaced with other triggers, such as proximity infrared transceiver sensors, to ensure maximum travel and prevent control failure.

[0030] The top surface of the saw chain guide plate positioning frame is screwed with a positioning post, and the height of the positioning post is adjusted according to the thickness of the saw chain guide plate.

[0031] The positioning clamp is set on the top surface of the front-to-back moving frame, along the long side of the front-to-back moving frame.

[0032] Positioning blocks are mainly used for positioning frames of saw chain guides. Due to the size and length of the saw chain guide, the positioning frames corresponding to the positioning holes on the saw chain guide are insufficient to support the pressure changes that may occur during welding. In order to ensure the quality of welding, additional saw chain guide positioning frames without positioning posts are often added to both ends and the middle of the saw chain guide for support, while avoiding the welding points.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic welding device for saw chain guide plates, installed on the working platform of a spot welding machine, characterized in that, include: A two-degree-of-freedom fixed-point frame is used to provide precise positioning in both left and right and front and back directions; The effective working part of the two-degree-of-freedom fixed-point frame is the rectangular frame; the top surface of the rectangular frame is provided with several positioning clamps, which are detachably connected to the rectangular frame, and the positioning clamps and the rectangular frame clamp and fix the saw chain guide plate positioning frame; a clamping and cooperating mechanism is fixed on the side of the rectangular frame, and the working end of the clamping and cooperating mechanism cooperates with the saw chain guide plate positioning frame to fix the saw chain guide plate.

2. The automatic welding device for saw chain guide plates according to claim 1, characterized in that, The top surface of the saw chain guide plate positioning frame is screwed with a positioning post, and the height of the positioning post is adjusted according to the thickness of the saw chain guide plate.

3. An automatic welding device for saw chain guides according to claim 1 or 2, characterized in that, The clamping and engaging mechanism includes: at least one pair of synchronously controlled telescopic cylinders, an adjusting plate fixed on the telescopic end of the telescopic cylinders, at least two elongated holes on the adjusting plate, a lower pressing claw fixed below the adjusting plate, a fixing bolt for the lower pressing claw being located in the elongated holes, and the position of the lower pressing claw matching the positioning frame of the saw chain guide plate.

4. The automatic welding device for saw chain guide plates according to claim 3, characterized in that, Each downward pressure claw has at least two fixing bolts, with each bolt located in one of the two elongated slots. The bottom of the claw body of the pressing claw is equipped with a pad.

5. The automatic welding device for saw chain guide plates according to claim 1, characterized in that, A two-degree-of-freedom fixed-point frame includes: The frame can be moved left and right and set on the work platform of the spot welding machine; The first slide rail group consists of two slide rails. The slide rail tracks are set on the work platform of the spot welding machine, and the sliders of the slide rails are set on the bottom surface of the left and right moving frame. The first slide rail group is parallel to the long side of the left and right moving frame. The forward / backward movement box is sized to match the left / right movement box and is positioned above the left / right movement box. The second slide rail group consists of two slide rails. The slide rail track is set on the upper surface of the left and right moving frame and is parallel to the short side of the left and right moving frame. The slider of the slide rail is set on the bottom surface of the front and back moving frame. A second drive device is also provided on the upper surface of the left-right moving frame, and the power output end of the second drive device is fixed to the frame of the front-back moving frame. A first drive device is installed below the work platform of the spot welding machine, and the power output end of the first drive device is fixed to the frame of the left and right moving frame.

6. The automatic welding device for saw chain guide plates according to claim 5, characterized in that, The first and second drive devices both use the same type of drive device; the drive device includes: a pair of hinge seats, a lead screw is provided on the hinge seats, a lead screw block is sleeved on the lead screw, and the lead screw block serves as the power output end of the drive device; a servo motor is provided at one end of the lead screw, and the lead screw drives the servo motor; two limit microswitches are provided between the hinge seats, and the microswitches work in conjunction with the lead screw block.

7. An automatic welding device for saw chain guides according to claim 5 or 6, characterized in that, The positioning clamp is set on the top surface of the front-to-back moving frame, along the long side of the front-to-back moving frame.

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