Welding gun welding nozzle installation coaxiality detector

Abstract

The utility model discloses a welding gun welding nozzle installation coaxiality detector which comprises a lower support, a carrier plate, a third guide rod, a tension spring, a transmission rod, a bearing seat, a ball bearing, a clamp, a test sleeve, an upper support, a movable pressing mechanism and a fixed pressing mechanism. According to the device, the electric push rod pushes the first pressing block to move leftwards, a welding gun body is very conveniently pressed and fixed between the first pressing block and the second pressing block, it can be guaranteed that the welding gun body and the testing sleeve are in a coaxial state after the welding gun body is pressed and fixed, and a welding nozzle is embedded into the testing sleeve in the mode that the upper support is manually pressed downwards; the detector has the advantage of being convenient to operate, meanwhile, the combination of the transmission rod, the clamp and the test sleeve is rotated through the hand wheel, the welding nozzle can enter the test sleeve more easily when the test sleeve rotates, and therefore the detector is high in clamping speed and high in detection accuracy.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding guns, in particular to a welding gun welding nozzle installation coaxiality detector. Background Art

[0002] The welding gun is an important tool for processing and manufacturing enterprises to perform welding operations. The welding gun nozzle is mainly used for the gas outlet channel of the shielding gas. Therefore, the inner wall of the gas flow channel in the nozzle is very smooth, and a better protection effect can be obtained with a smaller shielding gas flow rate. After the welding nozzle and the gun neck are assembled and fixed, the coaxiality of the welding nozzle and the conductive nozzle needs to be tested to improve the factory quality of the product. The existing detection method uses a manual hand-held detection sleeve. According to the detection sleeve can be embedded and installed in the welding nozzle, the coaxiality of the welding nozzle and the conductive nozzle is judged. In order to improve the detection accuracy, there is only a sliding gap of 100-200um between the detection sleeve and the welding nozzle and the conductive nozzle. The operator needs to hold the welding gun neck and the detection sleeve in a coaxial state. Otherwise, the detection sleeve is difficult to embed into the welding nozzle. Not only is the detection efficiency low, but there is also a problem of false detection. Summary of the invention

[0003] The technical problem to be solved by the utility model is to improve a welding gun welding nozzle installation coaxiality detector with high detection efficiency and detection accuracy.

[0004] In order to solve the above technical problems, the present invention is realized through the following technical scheme: a welding gun welding nozzle installation coaxiality detector, comprising a lower bracket, a carrier plate, a third guide rod, a tension spring, a transmission rod, a bearing seat, a ball bearing, a fixture, a test sleeve, an upper bracket, a movable clamping mechanism and a fixed clamping mechanism, the upper end of the third guide rod is fixedly installed on the lower part of the carrier plate, the lower part of the third guide rod is slidably installed on the lower bracket, the tension spring is sleeved on the third guide rod, the upper and lower ends of the tension spring are respectively fixedly connected to the carrier plate and the lower bracket, the bearing seat is fixedly installed on the top of the lower bracket, the retaining frame of the ball bearing is fixedly installed in the bearing seat, the transmission rod is fixedly connected to the rotating body of the ball bearing, the fixture is coaxially fixedly installed on the top of the transmission rod, the test sleeve is clamped and fixedly installed in the fixture, and the carrier plate is provided with a through hole for the welding gun body to pass through;

[0005] The movable clamping mechanism consists of an electric push rod, a spring telescopic rod, a first pressure block, and a first guide rod. Four first guide rods are slidably installed in a rectangular distribution on the right end of the upper bracket. The first pressure block is fixedly installed on the inner end of the first guide rod. The electric push rod is fixedly installed on the right end of the upper bracket. The actuator rod of the electric push rod slides through the upper bracket. The two ends of the spring telescopic rod are fixedly connected to the actuator rod of the electric push rod and the first pressure block respectively.

[0006] The fixed clamping mechanism consists of a second clamping block and a second guide rod. Four second guide rods are slidably installed in a rectangular distribution on the left end of the upper bracket. The second clamping block is fixedly installed on the inner end of the second guide rod. The front and rear sides of the left end of the upper bracket are screwed with clamping bolts for clamping and positioning the second guide rod.

[0007] Preferably, the first guide sleeve and the second guide sleeve are fixedly installed on the right and left sides of the upper bracket respectively, the first guide rod and the second guide rod are slidably installed in the first guide sleeve and the second guide sleeve respectively, and the third guide sleeve is fixedly installed on the lower bracket, and the third guide rod is slidably installed in the third guide sleeve.

[0008] Preferably, a hand wheel is fixedly mounted on the bottom of the screw.

[0009] Preferably, the pressing surfaces of the first pressing block and the second pressing block are arranged as arc surface structures corresponding to the welding gun body, and the arc surface structures are provided with mesh anti-slip patterns.

[0010] Compared with the prior art, the advantages of the utility model are: the device pushes the first pressure block to move to the left through the electric push rod, which very conveniently presses and fixes the welding gun body between the first pressure block and the second pressure block, and can ensure that the welding gun body is in a coaxial state with the test sleeve after being pressed and fixed. The welding nozzle is embedded in the test sleeve by manually pressing down the upper bracket, which has the advantage of easy operation. At the same time, the combination of the transmission rod, the clamp and the test sleeve is rotated by the hand wheel, and the welding nozzle is more easily inserted into the test sleeve when the test sleeve rotates. Therefore, the detector has a fast clamping speed and high detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings.

[0012] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0013] The utility model is described in detail below in conjunction with specific implementation methods:

[0014] like Figure 1The welding gun nozzle installation coaxiality detector shown in the figure comprises a lower bracket 1, a carrier plate 2, a third guide rod 3, a tension spring 31, a transmission rod 4, a bearing seat 5, a ball bearing, a fixture 6, a test sleeve 61, an upper bracket 7, a movable clamping mechanism and a fixed clamping mechanism, wherein the upper end of the third guide rod 3 is fixedly mounted on the lower part of the carrier plate 2, and the lower part of the third guide rod 3 is slidably mounted on the lower bracket 1, the tension spring 31 is sleeved and mounted on the third guide rod 3, and the upper and lower ends of the tension spring 31 are respectively fixedly connected to the carrier plate 2 and the lower bracket 1, the bearing seat 5 is fixedly mounted on the top of the lower bracket 1, the retaining frame of the ball bearing is fixedly mounted in the bearing seat 5, the transmission rod 4 is fixedly connected to the rotating body of the ball bearing, the fixture 6 is coaxially fixedly mounted on the top of the transmission rod 4, the test sleeve 61 is clamped and fixedly mounted in the fixture 6, the carrier plate 2 is provided with a through hole for the welding gun body 10 to pass through, and the fixture 6 uses an elastic chuck for CNC machine tools;

[0015] The movable clamping mechanism is composed of an electric push rod 8, a spring telescopic rod 81, a first pressure block 82, and a first guide rod 83. Four first guide rods 83 are slidably installed on the right end of the upper bracket 7 in a rectangular distribution. The first pressure block 82 is fixedly installed on the inner end of the first guide rod 83. The electric push rod 8 is fixedly installed on the right end of the upper bracket 7. The actuator rod of the electric push rod 8 slides through the upper bracket 7. The two ends of the spring telescopic rod 81 are fixedly connected to the actuator rod of the electric push rod 8 and the first pressure block 82 respectively.

[0016] The fixed clamping mechanism consists of a second clamping block 92 and a second guide rod 93. Four second guide rods 93 are slidably installed in a rectangular distribution on the left end of the upper bracket 7. The second clamping block 92 is fixedly installed on the inner end of the second guide rod 93. The front and rear sides of the left end of the upper bracket 7 are screwed with clamping bolts 9 for clamping and positioning the second guide rod 93.

[0017] In order to improve the straightness of the first guide rod 83 and the second guide rod 93 when they move left and right, the first guide sleeve 84 and the second guide sleeve 94 are fixedly installed on the right and left sides of the upper bracket 7 respectively, and the first guide rod 83 and the second guide rod 93 are slidably installed in the first guide sleeve 84 and the second guide sleeve 94 respectively. In order to improve the straightness of the third guide rod 3 when it moves up and down, a third guide sleeve 32 is fixedly installed on the lower bracket 1, and the third guide rod 3 is slidably installed in the third guide sleeve 32.

[0018] A hand wheel 41 is fixedly mounted at the bottom of the screw rod 4 , so that an operator can rotate the screw rod 4 through the hand wheel 41 .

[0019] The pressing surfaces of the first pressing block 82 and the second pressing block 92 are set to be arc surface structures corresponding to the welding gun body 10. The first pressing block 82 and the second pressing block 92 are set to be hard materials to improve the positioning accuracy after the first pressing block 82 and the second pressing block 92 press the welding gun body 10. The arc surface structure is provided with mesh anti-slip grooves to improve the friction between the first pressing block 82, the second pressing block 92 and the welding gun body 10, so as to avoid the problem of downward sliding displacement of the welding gun body 10 after being clamped and fixed.

[0020] Select a test sleeve 61 that matches the welding nozzle of the welding gun body 10 and fix it in the fixture 6. Replace the first pressing block 82 and the second pressing block 92 that match the arc surface structure according to different types of welding gun bodies 10. At the same time, loosen the clamping bolt 9 and adjust the left and right positions of the second pressing block 92. When adjusting, find a welding gun body 10 that meets the product requirements of the standard. The welding nozzle of the welding gun body 10 is plugged and installed in the test sleeve 61. After the arc surface structure of the second pressing block 92 is close to the welding gun body 10, tighten the clamping bolt to improve the subsequent first pressing block 82 and the second pressing block 92 after pressing the welding gun body 10. Positioning accuracy, start the electric push rod 8 to push the first pressing block 82 to move, so that the welding gun body 10 is pressed and fixed between the first pressing block 82 and the second pressing block 92. The spring telescopic rod 81 can play an elastic contraction role to prevent the electric push rod 8 from being too far and causing the welding gun body 10 to be squeezed and damaged. The operator presses down the upper bracket 7 to drive the welding gun body 10 to move downward. The welding nozzle of the welding gun body 10 passes through the through hole of the carrier plate 2 and contacts the test sleeve 61. At the same time, the hand wheel 41 is used to rotate the combination of the transmission rod 4, the fixture 6 and the test sleeve 61. When the test sleeve 61 rotates, the welding nozzle is easier to enter the test sleeve 61. The operator determines whether it is in a coaxial state with the conductive nozzle after installation based on whether the welding nozzle can be embedded in the test sleeve 61.

Claims

1. A welding gun nozzle installation coaxiality detector, characterized in that: The invention comprises a lower bracket (1), a carrier plate (2), a third guide rod (3), a tension spring (31), a transmission rod (4), a bearing seat (5), a ball bearing, a fixture (6), a test sleeve (61), an upper bracket (7), a movable clamping mechanism and a fixed clamping mechanism, wherein the upper end of the third guide rod (3) is fixedly mounted on the lower part of the carrier plate (2), the lower part of the third guide rod (3) is slidably mounted on the lower bracket (1), the tension spring (31) is sleeved and mounted on the third guide rod (3), and the tension spring (31) is sleeved and mounted on the third guide rod (3). ) are respectively fixedly connected to the carrier plate (2) and the lower bracket (1), the bearing seat (5) is fixedly mounted on the top of the lower bracket (1), the retaining frame of the ball bearing is fixedly mounted in the bearing seat (5), the transmission rod (4) is fixedly connected to the rotating body of the ball bearing, the clamp (6) is coaxially fixedly mounted on the top of the transmission rod (4), the test sleeve (61) is clamped and fixedly mounted in the clamp (6), and the carrier plate (2) is provided with a through hole for the welding gun body (10) to pass through; The movable clamping mechanism is composed of an electric push rod (8), a spring telescopic rod (81), a first pressure block (82), and a first guide rod (83); four first guide rods (83) are arranged in a rectangular shape and are slidably mounted on the right end of the upper bracket (7); the first pressure block (82) is fixedly mounted on the inner end of the first guide rod (83); the electric push rod (8) is fixedly mounted on the right end of the upper bracket (7); the actuating rod of the electric push rod (8) slides through the upper bracket (7); and the two ends of the spring telescopic rod (81) are fixedly connected to the actuating rod of the electric push rod (8) and the first pressure block (82) respectively; The fixed clamping mechanism is composed of a second clamping block (92) and a second guide rod (93). Four second guide rods (93) are arranged in a rectangular shape and are slidably mounted on the left end of the upper bracket (7). The second clamping block (92) is fixedly mounted on the inner end of the second guide rod (93). Clamping bolts (9) for clamping and positioning the second guide rod (93) are screwedly mounted on the front and rear sides of the left end of the upper bracket (7).

2. The welding gun nozzle installation coaxiality detector according to claim 1, characterized in that: A first guide sleeve (84) and a second guide sleeve (94) are fixedly mounted on the right and left sides of the upper bracket (7), respectively; the first guide rod (83) and the second guide rod (93) are slidably mounted in the first guide sleeve (84) and the second guide sleeve (94), respectively; a third guide sleeve (32) is fixedly mounted on the lower bracket (1), and the third guide rod (3) is slidably mounted in the third guide sleeve (32).

3. The welding gun nozzle mounting coaxiality detector according to claim 1, characterized in that: A hand wheel is fixedly mounted on the bottom of the transmission rod (4).

4. The welding gun nozzle mounting coaxiality detector according to claim 1, characterized in that: The pressing surfaces of the first pressing block (82) and the second pressing block (92) are arranged as arc surface structures corresponding to the welding gun body (10), and the arc surface structures are provided with mesh anti-slip patterns.

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