Tool clamp for welding of picking bar

By designing a tooling fixture that includes a base, positioning support, and hole positioning components, the problem of maintaining the concentricity of the welding holes of the pick bar in the existing technology is solved, and precise control of the concentricity after the pick bar is welded is achieved.

CN223917114UActive Publication Date: 2026-02-17ZHENGZHOU KEFENG AGRICULTURAL MACHINERY CO LTD
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Patent Information

Application Number
CN202521047964.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-26
Publication Date
2026-02-17
Estimated Expiration
2035-05-26

AI Technical Summary

Technical Problem

Existing tooling fixtures cannot effectively maintain the concentricity between holes after the pick bar is welded.

Method used

A tooling fixture including a base, positioning support and hole positioning component is designed. The combination of positioning support and hole positioning component ensures that the various components of the cantilever welded part maintain concentricity during the welding process, including the precise positioning of the main shaft, connecting plate, U-shaped frame and small frame.

Benefits of technology

This ensures precise concentricity between the holes after the welding of the pick bars, guaranteeing welding quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223917114U_ABST
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Abstract

The utility model provides a work fixture for welding a lifting bar, which comprises a base and a positioning support, a lifting bar welding piece is placed on the base, and the positioning support comprises a first positioning support, a second positioning support, a third positioning support and a fourth positioning support; the lifting bar welding piece comprises a large shaft, a connecting plate, a small frame body and a U-shaped frame; and the hole positioning piece comprises a positioning shaft and a positioning plate, and the welding device has the advantages that not only can the welding of the picking bar be realized, but also the concentricity accuracy between holes after the welding of the picking bar can be kept.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pick pole welding, specifically relates to a tool fixture for pick pole welding. BACKGROUND

[0002] The horizontal shaft below the plow head of the turnover plow is used for connecting the turnover plow and the tractor, the horizontal shaft is a pick pole, the pick pole is a welded part, a plurality of parts are welded to form the pick pole through the welding mode, due to the pick pole when installing, a plurality of holes, and the hole needs to keep the concentricity between, in the existing tool fixture, the problem of concentricity change cannot be solved. UTILITY MODEL CONTENTS

[0003] Therefore, the utility model provides a tool fixture for pick pole welding, which can realize the welding of the pick pole and keep the concentricity between the holes after welding.

[0004] In order to solve the above technical problem, the utility model provides a tool fixture for pick pole welding, which includes a base, the base is placed with a pick pole welding part, and further includes,

[0005] Positioning support, the positioning support includes first positioning support, second positioning support, third positioning support and fourth positioning support;

[0006] Pick pole welding part, the pick pole welding part includes a large shaft, a connecting plate, a small frame body and a U-shaped frame;

[0007] Hole positioning part, the hole positioning part includes a positioning shaft and a positioning plate.

[0008] Further, the first positioning support is arranged below the connecting plate and is in contact with the lower end surface of the connecting plate.

[0009] Further, the second positioning support is arranged below the U-shaped frame and is in contact with the lower end surface of the U-shaped frame.

[0010] Further, the third positioning support is arranged below the small frame body and is used for supporting the small frame body, and the small frame body is a U-shaped structure.

[0011] Further, the fourth positioning support is arranged below the connecting plate and the large shaft and is used for supporting the connecting plate and the large shaft, and an arc-shaped groove is arranged on the fourth positioning support in contact with the large shaft.

[0012] Further, one end of the positioning shaft is inserted into the end of the large shaft, and the other end is connected with the positioning plate, and the positioning shaft penetrates the hole on the U-shaped frame.

[0013] Further, the positioning plate is inserted into the inside of the small frame body.

[0014] The beneficial effects of the above technical solutions of the utility model are as follows:

[0015] 1. The welding of the pick lever can be realized, the large shaft, the connecting plate, the U-shaped frame and the small frame body are arranged, and the positioning support is arranged, and the welding of the pick lever can be realized through the welding mode.

[0016] 2. The concentricity precision between the holes after the welding of the pick lever can be kept, the positioning shaft and the connecting plate are arranged, and the concentricity between the U-shaped frame and the large shaft is kept more accurate. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the utility model;

[0018] Figure 2 is Figure 1 a structural schematic view from another perspective;

[0019] In the drawing: 1, base; 2, first positioning support; 3, second positioning support; 4, third positioning support; 5, fourth positioning support; 6, large shaft; 7, connecting plate; 8, U-shaped frame; 9, positioning shaft; 10, positioning plate; 11, small frame body. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the following will be combined with the drawings of the embodiments of the utility model to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer. Figures 1-2 The technical scheme of the embodiments of the utility model is clearly and completely described. Obviously, the described embodiments are part of the embodiments of the utility model, not all. Based on the described embodiments of the utility model, all other embodiments obtained by those skilled in the art belong to the scope of protection of the utility model.

[0021] As Figures 1-2 shown: EMBODIMENT

[0022] A tool clamp for pick lever welding, comprising a base 1, the base 1 is placed with a pick lever welding part, further comprising a positioning support, the positioning support comprises a first positioning support 2, a second positioning support 3, a third positioning support 4 and a fourth positioning support 5; pick lever welding part, the pick lever welding part comprises a large shaft 6, a connecting plate 7, a small frame body 11 and a U-shaped frame 8; hole positioning part, the hole positioning part comprises a positioning shaft 9 and a positioning plate 10.

[0023] In this embodiment, the base 1 is a plate structure, horizontally arranged, and provided with positioning supports on the bottom plate. According to the structure of the welded piece, the positioning supports are divided into first positioning supports 2, second positioning supports 3, third positioning supports 4 and fourth positioning supports 5, and the lower end surfaces of the positioning supports are welded and fixed with the base 1. The components of the welded piece of the cantilever include a large shaft 6, a connecting plate 7, a U-shaped frame 8 and a small frame body 11, and the above components are welded to form the cantilever through a positioning shaft 9 of a tool clamp. In order to maintain the concentricity of the hole on the U-shaped frame 8, a hole positioning piece is also arranged at the hole, including the positioning shaft 9 and a positioning plate 10. Embodiment

[0024] The first positioning support 2 is arranged below the connecting plate 7 and in contact with the lower end surface of the connecting plate 7.

[0025] Different from the above embodiment, in this embodiment, the first positioning support 2 is a plate structure, placed below the connecting plate 7, for supporting the connecting plate 7 and maintaining the horizontal state of the connecting plate 7. Embodiment

[0026] The second positioning support 3 is arranged below the U-shaped frame 8 and in contact with the lower end surface of the U-shaped frame 8.

[0027] Different from the above embodiment, in this embodiment, the lower end of the second positioning support 3 is fixedly connected with the base 1, and the number of the second positioning supports 3 is two, arranged in parallel. A positioning wedge block is arranged on the upper end surface of the second positioning support 3, which is used for contacting and fixing one plate surface of the U-shaped frame 8, and also for positioning the U-shaped frame 8. Embodiment

[0028] The third positioning support 4 is arranged below the small frame body 11 for supporting the small frame body 11, and the small frame body 11 is a U-shaped structure.

[0029] Different from the above embodiment, in this embodiment, the third positioning support 4 is a plate structure, for supporting the small frame body 11. Embodiment

[0030] The fourth positioning support 5 is arranged below the connecting plate 7 and the large shaft 6 for supporting the connecting plate 7 and the large shaft 6, and an arc-shaped groove is arranged on the fourth positioning support 5 at the position in contact with the large shaft 6.

[0031] Different from the above embodiment, in this embodiment, the fourth positioning support 5 is a long plate structure, supporting the large shaft 6 and the connecting plate 7, and an arc-shaped groove is arranged at the position in contact with the large shaft 6, facilitating the placement of the large shaft 6. Embodiment

[0032] One end of the positioning shaft 9 is inserted into the end of the large shaft 6, and the other end is connected to the positioning plate 10, and the positioning shaft 9 penetrates the hole on the U-shaped frame 8.

[0033] In this embodiment, unlike the above embodiment, recesses with a depth of about 50 cm are formed at both ends of the large shaft 6, and one end of the positioning shaft 9 is inserted. Embodiment

[0034] The positioning plate 10 is inserted into the inside of the small frame body 11.

[0035] In this embodiment, unlike the above embodiment, the positioning plate 10 is clamped in the inside of the small frame body 11, facilitating precision control of the concentricity.

[0036] The working method (or working principle) of the utility model is as follows:

[0037] In the working process of the utility model, the base 1 is placed on the workbench, the positioning support is welded on the base 1, the positioning support is welded at the set distance, the large shaft 6 is placed on the arc-shaped groove on the fourth positioning support 5, the U-shaped frame 8 is placed on the second positioning support 3, one plate of the U-shaped frame 8 is placed on the inside of the positioning wedge block, the connecting plate 7 is placed on the first positioning support 2 and the fourth positioning support 5, the small frame body 11 is placed on the third positioning support 4, the positioning shaft 9 and the positioning plate 10 are assembled, the positioning shaft 9 penetrates the U-shaped frame 8 and is inserted into the end of the large shaft 6, then the positioning plate 10 is inserted into the small frame body 11, the positioning operation is completed, then welding operation is performed, after the welding is completed, the positioning shaft 9 and the positioning plate 10 are removed, and the cantilevered welding piece is removed.

[0038] In the utility model, unless otherwise specified and limited, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements or the interaction relationship between two elements, unless otherwise specified, the above-mentioned terms can be understood according to the specific meaning in the utility model for ordinary technical personnel in the field.

[0039] The above is the preferred embodiment of the utility model, and it should be pointed out that for ordinary technical personnel in the technical field, without departing from the principle of the utility model, a number of improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection range of the utility model.

Claims

1. A fixture for stitch welding, comprising a base (1) on which a stitch welding piece is placed, characterized in that: Also included are, Positioning supports, including a first positioning support (2), a second positioning support (3), a third positioning support (4), and a fourth positioning support (5); A pick-up welding member, including a large shaft (6), a connecting plate (7), a small bracket body (11), and a U-shaped bracket (8); A hole positioning member, including a positioning shaft (9) and a positioning plate (10).

2. A fixture clamp for pick-up welding as defined in claim 1, wherein: The first positioning support (2) is arranged below the connecting plate (7) and is in contact with the lower end surface of the connecting plate (7).

3. A fixture for tack welding as defined in claim 2, wherein: The second positioning support (3) is arranged below the U-shaped bracket (8) and is in contact with the lower end surface of the U-shaped bracket (8).

4. A fixture clamp for pick-up welding as defined in claim 3, wherein: The third positioning support (4) is arranged below the small bracket body (11) to support the small bracket body (11), and the small bracket body (11) has a U-shaped structure.

5. A fixture for pick-up welding as defined in claim 4, wherein: The fourth positioning support (5) is arranged below the connecting plate (7) and the large shaft (6) to support the connecting plate (7) and the large shaft (6), and an arc-shaped groove is arranged on the fourth positioning support (5) at a position in contact with the large shaft (6).

6. A fixture for pick-up welding as defined in claim 5, wherein: One end of the positioning shaft (9) is inserted into the end of the large shaft (6), and the other end is connected to the positioning plate (10), and the positioning shaft (9) penetrates through the hole in the U-shaped bracket (8).

7. A fixture clamp for pick-up welding as defined in claim 6, wherein: The positioning plate (10) is inserted into the inside of the small bracket body (11).