Workpiece welding and fixing jig

Abstract

The utility model relates to the technical field of fixing jigs, in particular to a workpiece welding fixing jig which comprises a base, a tubular workpiece and a fixing assembly for fixing the tubular workpiece. The fixing assembly comprises a shaft rod, an upper limiting block and a lower limiting block are installed at the two ends of the shaft rod in a sliding mode respectively, an upper limiting rod is fixedly installed on the upper limiting block, a lower limiting rod is fixedly installed on the lower limiting block, and the upper limiting rod and the lower limiting rod make contact with the end of the tubular workpiece in a sliding mode. According to the tubular workpiece clamping device, the upper limiting block and the lower limiting block slide on the shaft rod to press the tubular workpiece, the upper limiting rod and the lower limiting rod are used for fixing the tubular workpiece, displacement and rotation of the tubular workpiece are avoided, and meanwhile welding of the welding piece on the tubular workpiece is not affected.

Description

Technical Field

[0001] This utility model relates to the field of fixing fixture technology, specifically to a workpiece welding fixing fixture. Background Technology

[0002] A jig is an auxiliary device used to fix the workpiece during processing. It also guides the processing and is also called an auxiliary tool. In order to ensure the welding accuracy and prevent displacement and rotation of the tubular workpiece during the welding process, a fixing jig is needed to fix the tubular workpiece.

[0003] Existing technologies, such as the workpiece welding and fixing fixture disclosed in utility model patent publication number CN221952675U, include: a base plate; a shaft fixedly installed at the center of the base plate; a tubular workpiece sleeved on the circumferential outer wall of the shaft; a first circular hole and a second circular hole at the end of the shaft away from the base plate; a limiting cover fixedly installed with an installation rod that can be correspondingly inserted into the first circular hole and the second circular hole; several limiting grooves are formed along the circumferential side wall of the tubular workpiece; and a limiting rod that mates with the limiting grooves is fixedly installed on the circumferential side wall of the limiting cover. When the installation rod is inserted into the first circular hole and the second circular hole, the limiting rod is located inside the limiting groove and fixes the tubular workpiece to the limiting cover. This utility model workpiece welding and fixing fixture avoids displacement and rotation of the tubular workpiece during processing, greatly improves the positional accuracy of the tubular workpiece, facilitates welding of the tubular workpiece, and improves the welding effect.

[0004] This fixture can improve the positional accuracy of tubular workpieces, but while the limiting rod limits the tubular workpieces, it also makes it difficult for the welding mechanism to weld the tubular workpieces. Moreover, when the diameters of the two tubular workpieces are different, the limiting rod is not convenient to fix the two tubular workpieces. Furthermore, the size of the tubular workpiece that this fixture can fix is ​​fixed, which limits its application range and practicality.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Utility Model Content

[0006] The purpose of this utility model is to provide a workpiece welding and fixing fixture that can effectively solve the above-mentioned technical problems.

[0007] To achieve the purpose of this utility model, the following technical solution is adopted: a workpiece welding and fixing fixture, comprising: a base, a tubular workpiece, and a fixing component for fixing the tubular workpiece;

[0008] The fixing component includes: a shaft, with an upper limit block and a lower limit block slidably mounted on both ends of the shaft, an upper limit rod fixedly mounted on the upper limit block, and a lower limit rod fixedly mounted on the lower limit block, the upper limit rod and the lower limit rod slidingly contacting the end of the tubular workpiece.

[0009] Furthermore, the shaft has shaft holes at both ends, and positioning grooves are provided around the edges of the shaft holes.

[0010] Furthermore, an upper positioning plate is fixedly installed inside the upper limit block, and a lower positioning plate is fixedly installed inside the lower limit block. The upper positioning plate and the lower positioning plate are slidably installed in the positioning grooves at both ends of the shaft.

[0011] Furthermore, an upper threaded tube is threadedly installed on the inner wall of the shaft hole and on the upper positioning plate, and a lower threaded tube is threadedly installed on the inner wall of the shaft hole and on the lower positioning plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a workpiece welding and fixing fixture, which uses an upper limit block and a lower limit block to slide on a shaft to press the tubular workpiece, and uses an upper limit rod and a lower limit rod to fix the tubular workpiece. While avoiding displacement and rotation of the tubular workpiece, it does not affect the welding of the tubular workpiece by the welding component. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] Figure 1 This is a schematic diagram of the structure of a workpiece welding and fixing fixture according to the present invention.

[0015] Figure 2 This is a schematic diagram of the disassembled structure of the fixing component in this utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the tubular workpiece after it has been disassembled in this utility model.

[0017] Figure 4 This is a schematic diagram of the upper limit block and the lower limit block in this utility model.

[0018] Figure 5 This is a cross-sectional structural diagram of the fixing component in this utility model.

[0019] Figure 6 This is a schematic diagram of the structure of the central shaft of this utility model.

[0020] In the diagram: 1. Base; 2. Through slot; 3. First tubular workpiece; 31. Lower limit slot; 4. Second tubular workpiece; 41. Upper limit slot; 5. Fixing assembly; 51. Shaft; 511. Positioning slot; 512. Shaft hole; 52. Upper limit block; 521. Upper limit rod; 522. Upper positioning plate; 53. Upper threaded tube; 54. Lower threaded tube; 55. Lower limit block; 551. Lower limit rod; 552. Lower positioning plate. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0022] In the description of this utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. When a mechanism is referred to as being "fixed to" another mechanism, it can be directly on the other mechanism or there may be an intervening mechanism. When a mechanism is considered to be "connected" to another mechanism, it can be directly connected to the other mechanism or there may be an intervening mechanism at the same time. When a mechanism is considered to be "set on" another mechanism, it can be directly set on the other mechanism or there may be an intervening mechanism at the same time. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0023] like Figures 1 to 6 As shown, this utility model provides a workpiece welding and fixing fixture, comprising: a base 1, a tubular workpiece, and a fixing component 5 for fixing the tubular workpiece.

[0024] The base 1 has a through groove 2 on its circumference; a set of tubular workpieces includes a first tubular workpiece 3 and a second tubular workpiece 4. The lower end of the first tubular workpiece 3 is provided with a lower limiting groove 31, and the upper end of the second tubular workpiece 4 is provided with an upper limiting groove 41; the diameter of the first tubular workpiece 3 is greater than or equal to the diameter of the second tubular workpiece 4.

[0025] The fixing component 5 includes: a shaft 51, which is fixed and passes through the base 1, and both ends of the shaft 51 are provided with shaft holes 512. The depth of the shaft hole 512 at the top of the shaft 51 is greater than the depth of the shaft hole 512 at the bottom of the shaft 51. A positioning groove 511 is provided on the circumference of the edge of the shaft hole 512, and the depth of the positioning groove 511 is the same as the depth of the shaft hole 512. An upper limit block 52 and a lower limit block 55 are slidably installed at both ends of the shaft 51, respectively. An upper positioning plate 522 is fixedly installed inside the upper limit block 52, and a lower positioning plate 552 is fixedly installed inside the lower limit block 55. Plate 522 and lower positioning plate 552 are slidably installed in the positioning grooves 511 at both ends of shaft 51. The upper positioning plate 522 and lower positioning plate 552 slide in the positioning grooves 511 to prevent the upper limit block 52 and lower limit block 55 from rotating. An upper limit rod 521 is fixedly installed on the upper limit block 52 and a lower limit rod 551 is fixedly installed on the lower limit block 55. The upper limit rod 521 can slide into the upper limit groove 41 to fix the second tubular workpiece 4, and the lower limit rod 551 can slide into the lower limit groove 31 to fix the first tubular workpiece 3.

[0026] An upper threaded tube 53 is threaded onto the inner wall of the shaft hole 512 and onto the upper positioning plate 522, and a lower threaded tube 54 is threaded onto the inner wall of the shaft hole 512 and onto the lower positioning plate 552. By screwing the upper threaded tube 53 and the lower threaded tube 54 into the shaft hole 512, the upper threaded tube 53 can fix the upper limit block 52 to prevent the upper limit block 52 from failing to press the tubular workpiece, and the lower threaded tube 54 can fix the lower limit block 55 to prevent the lower limit block 55 from slipping off.

[0027] When performing mass welding of tubular workpieces, the threaded tube 53 can be replaced with a vertical electric actuator. The electric actuator is fixedly connected to the upper limit block 52 to control the lifting and lowering of the upper limit block 52. The electric actuator is fixedly installed on the frame, and the frame is fixedly installed on the base 1, so that the electric actuator is located above the upper limit block 52.

[0028] Suitable upper limit block 52 and lower limit block 55 can be selected according to the dimensions of the first tubular workpiece 3 and the second tubular workpiece 4. The lower limit block 55 is fixedly installed on the lower end of the shaft 51 through the lower threaded tube 54, and the lower limit rod 551 passes through the through groove 2. Then, the first tubular workpiece 3 and the second tubular workpiece 4 are sleeved on the shaft 51, so that the lower limit rod 551 contacts the inner wall of the lower limit groove 31. The second tubular workpiece 4 is located above the first tubular workpiece 3. The upper limit block 52 is sleeved on the upper end of the tube shaft, and the upper limit block 52 contacts and presses the second tubular workpiece 4. The position of the upper limit block 52 is fixed by the upper threaded tube 53 or the electric actuator. This solves the problem of limited applicability caused by the fixed length of the shaft 51 in the prior art, and fixes two tubular workpieces of different sizes, which is convenient for welding devices to weld.

[0029] Working principle:

[0030] The first tubular workpiece 3 and the second tubular workpiece 4 are successively fitted onto the shaft 51, with the ends of the first tubular workpiece 3 and the second tubular workpiece 4 in contact with each other. The lower limit rod 551 is used to fix the lower end of the first tubular workpiece 3, and the upper limit block 52 is used to press the second tubular workpiece 4 tightly. The upper limit rod 521 is used to fix the upper end of the second tubular workpiece 4. This method can fix two tubular workpieces of different sizes, and the upper limit rod 521 and the lower limit rod 551 will not affect the welding device's welding of the tubular workpieces. By replacing the lower limit block 55 and the upper limit block 52, the upper limit rod 521 and the lower limit rod 551 can fix the first tubular workpiece 3 and the second tubular workpiece 4, thus improving the applicability of the fixing fixture.

[0031] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0032] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A workpiece welding and fixing fixture, characterized in that, include: A base, a tubular workpiece, and a fixing assembly for securing the tubular workpiece; The fixing component includes: a shaft, with an upper limit block and a lower limit block slidably mounted on both ends of the shaft, an upper limit rod fixedly mounted on the upper limit block, and a lower limit rod fixedly mounted on the lower limit block, the upper limit rod and the lower limit rod slidingly contacting the end of the tubular workpiece.

2. The workpiece welding and fixing fixture as described in claim 1, characterized in that, The shaft has shaft holes at both ends, and positioning grooves are provided around the edges of the shaft holes.

3. The workpiece welding and fixing fixture as described in claim 2, characterized in that, An upper positioning plate is fixedly installed inside the upper limit block, and a lower positioning plate is fixedly installed inside the lower limit block. The upper positioning plate and the lower positioning plate are slidably installed in the positioning grooves at both ends of the shaft.

4. The workpiece welding and fixing fixture as described in claim 3, characterized in that, An upper threaded tube is threadedly installed on the inner wall of the shaft hole and on the upper positioning plate, and a lower threaded tube is threadedly installed on the inner wall of the shaft hole and on the lower positioning plate.

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