Plate and profile chamfering device for transformer clamp production

By setting a retaining mechanism on the handheld pneumatic chamfering machine, the problems of laborious manual operation and machine deviation are solved, achieving a stable chamfering effect and adapting to the chamfering needs of plates of different thicknesses.

CN223833593UActive Publication Date: 2026-01-27GUOCHUANG POWER (TIANJIN) CO LTD
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Patent Information

Application Number
CN202520413535.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-01-27
Estimated Expiration
2035-03-11

AI Technical Summary

Technical Problem

In the production of transformer clamping parts, the existing handheld pneumatic chamfering machines are laborious to operate manually and are prone to causing the chamfering machine to detach or deviate, affecting the quality of the chamfering process.

Method used

A retaining mechanism is set at the circular baffle of the handheld pneumatic chamfering machine, including a semi-circular ring, connecting plate, vertical connecting plate, support bar, internal threaded cylinder, stud and ball. Through the combination of these components, the linear motion assistance of the chamfering machine is realized, ensuring that the tool is close to the edge of the plate for chamfering.

Benefits of technology

This prevents the chamfering machine from accidentally detaching or deviating, improves the stability and quality of chamfering processes, and adapts to the chamfering needs of plates of different thicknesses.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a plate and section bar chamfering device for transformer clamp production, which comprises a chamfering machine body and a circular baffle plate, the circular baffle plate is fixed outside a shell above a chamfering cutter of the chamfering machine body, the chamfering machine body further comprises a retaining mechanism, and the retaining mechanism is arranged at the circular baffle plate of the existing handheld pneumatic chamfering machine. The retaining mechanism is matched with a circular baffle of the chamfering machine body, so that the retaining mechanism can be clamped outside a plate body of a transformer clamp production plate and a sectional material for linear motion assistance during chamfering, and it is ensured that a cutter of the chamfering machine body can be close to the edge burr edge of the plate body for chamfering in the rotating state; according to the chamfering machine, the chamfering structure of the chamfering machine body is attached to the plate edge of a plate and a profile for transformer clamp production to conduct linear chamfering machining, the problem that when a worker manually operates the chamfering machine body to keep chamfering, the chamfering machine body is accidentally disengaged and deviated is solved, and the manual chamfering quality of the plate and the profile for transformer clamp production is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of chamfering device technology, and in particular to a chamfering device for plates and profiles used in the production of transformer clamps. Background Technology

[0002] Transformer clamps are an important component of transformers, primarily used to fix and support the iron core, ensuring its stability during operation. Transformer clamps are typically formed by stamping and bending steel plates of a certain thickness, with protruding positioning bolts and inwardly bent tensile edges added to the sides of the clamps to improve their positioning and bending resistance. During the processing of plates and profiles used in transformer clamp production, chamfering is usually performed to eliminate sharp or protruding edges. When chamfering the plates and profiles used in transformer clamp production, workers use handheld pneumatic chamfering machines to chamfer the edges.

[0003] Existing handheld pneumatic chamfering machines connect to an air compressor via pipes and can rotate their cutting heads to chamfer plates and profiles. However, when chamfering and deburring the edges of transformer clamps, this type of chamfering device requires workers to hold the chamfering machine and press the rotating cutting head under the circular baffle against the edge of the profile. This manual operation is laborious and can easily lead to the chamfering machine detaching from the edge of the profile, resulting in misoperation and affecting the chamfering quality of plates and profiles used in transformer clamp production. Therefore, we propose a chamfering device for plates and profiles used in transformer clamp production. Utility Model Content

[0004] The main purpose of this utility model is to provide a chamfering device for plates and profiles used in transformer clamp production. A retaining mechanism is installed at the circular baffle of an existing handheld pneumatic chamfering machine. This retaining mechanism, in conjunction with the circular baffle of the chamfering machine body, can clamp the plate or profile used in transformer clamp production for linear motion assistance during chamfering. This ensures that the cutting tool of the chamfering machine body can approach the edge of the plate or profile for chamfering while rotating. Then, with the retaining mechanism's assistance, the worker pushes the chamfering machine body, causing the chamfering structure of the chamfering machine body to be against the edge of the plate or profile used in transformer clamp production for linear chamfering. This avoids the problem of the chamfering machine body accidentally detaching or deviating when the worker manually operates the chamfering machine body, ensuring the quality of manual chamfering of plates and profiles used in transformer clamp production, and effectively solving the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A chamfering device for transformer clamp production plates and profiles includes a chamfering machine body and a circular baffle. The circular baffle is fixed to the outer shell of the chamfering machine body near the chamfering tool. The device also includes a retaining mechanism, which includes a semi-circular ring, a connecting plate, a vertical connecting plate, a support bar, an internally threaded cylinder, a stud, and a ball. The upper surface of the circular baffle is secured with a semi-circular ring by an internal hex bolt. The connecting plate is symmetrically fixed to the outer surface of the circular baffle, which is exposed from the semi-circular ring. A support bar extending into the lower part of the circular baffle is welded to the connecting plate at the end of the connecting plate away from the semi-circular ring via the vertical connecting plate. An internally threaded cylinder is fixed to the surface of the support bar away from the vertical connecting plate. A stud is threaded into the internal thread of the internally threaded cylinder. The top of the stud has a recessed cavity for the ball to be inserted and rotated, and the surface of the stud outside the ball has a recessed groove.

[0007] Furthermore, the head of the connecting plate and the head of the support strip are welded to the surface of the vertical plate of the vertical connecting plate, and the length of the support strip is greater than the length of the connecting plate.

[0008] By adopting the above technical solution, the plate heads of the connecting plate and the support bar are welded to the vertical plate body of the vertical connecting plate for connection, and the support bar can extend from below the connecting plate to below the circular baffle.

[0009] Furthermore, an L-shaped baffle is welded between the L-shaped plate body formed by welding the connecting plate and the vertical connecting plate;

[0010] By adopting the above technical solution, the L-shaped baffles welded at the connecting plate and vertical connecting plate can be blocked outside the circular baffle. When the plates and profiles used for transformer clamp production are ground by the tools of the chamfering machine body and generate flying chips, the waste chips flying towards the L-shaped baffles can be blocked and fall off.

[0011] Furthermore, the internally threaded cylinder has a vertically threaded hole inside its cylinder body, and a stud is screwed into the threaded hole of the internally threaded cylinder, the height of the stud being greater than the depth of the threaded hole of the internally threaded cylinder.

[0012] By adopting the above technical solution, the internal threaded cylinder can be connected to the stud by screwing the threaded hole, and the stud extending out of the internal threaded cylinder can expose its own concave groove, making it convenient to turn the stud.

[0013] Furthermore, a rubber ring is fixed at the opening of the ball-holding cavity, and the body of the rubber ring is fitted over the rolling ball;

[0014] By adopting the above technical solution, after the ball is loaded into the ball clamping cavity, the rubber ring can rub against the dust on the surface of the ball as the ball rotates inside the ball clamping cavity, preventing dust from entering the ball clamping cavity.

[0015] Furthermore, the surfaces of the semicircular ring and the circular baffle are vertically provided with threaded mounting holes, and hexagonal socket bolts are screwed into the threaded mounting holes of the semicircular ring and the circular baffle.

[0016] By adopting the above technical solution, the semi-circular ring and the circular baffle are connected by screwing in hexagonal bolts through threaded mounting holes.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention incorporates a retaining mechanism at the circular baffle of an existing handheld pneumatic chamfering machine. This retaining mechanism, in conjunction with the circular baffle of the chamfering machine body, can clamp onto the outside of the plate or profile used for transformer component production, assisting in linear motion during chamfering. This ensures that the chamfering machine's cutting tool, while rotating, can approach the edge of the plate for chamfering. Then, with the retaining mechanism's assistance, the worker pushes the chamfering machine body, ensuring the chamfering structure of the machine body rests against the edge of the plate or profile used for transformer component production, performing linear chamfering. This avoids the problem of the chamfering machine body accidentally detaching or deviating when manually operated, thus guaranteeing the quality of manual chamfering of the plates and profiles used for transformer component production.

[0019] Furthermore, the ball-bearing stud of the retaining mechanism can rotate up or down inside the internal threaded cylinder above the support bar, so that the distance between the ball and the circular baffle can be changed, thereby adapting to the chamfering retention of different thickness plates and profiles used in transformer clamp production. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the plate and profile chamfering device used in the production of transformer clamps according to this utility model.

[0021] Figure 2 This is a schematic diagram showing the separation of the retaining mechanism and the circular baffle of the plate and profile chamfering device used in the production of transformer clamps according to this utility model.

[0022] Figure 3 This is an exploded view of the holding mechanism of the plate and profile chamfering device used in the production of transformer clamps according to this utility model.

[0023] Figure 4 This is a schematic diagram of the stud structure of the plate and profile chamfering device used in the production of transformer clamps according to this utility model.

[0024] In the diagram: 1. Chamfering machine body; 2. Circular baffle; 3. Holding mechanism; 4. Semicircular ring; 5. Socket head bolt; 6. Connecting plate; 7. Vertical connecting plate; 8. Support bar; 9. Internal threaded cylinder; 10. Stud; 11. Ball clamping cavity; 12. Rolling ball; 13. Rubber ring; 14. Recessed groove; 15. L-shaped baffle. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figure 1-4 As shown, a chamfering device for transformer clamp production plates and profiles includes a chamfering machine body 1 and a circular baffle 2. The circular baffle 2 is fixed to the outer shell of the chamfering machine body 1 near the chamfering tool. The device also includes a retaining mechanism 3, which comprises a semi-circular ring 4, a connecting plate 6, a vertical connecting plate 7, a support bar 8, an internal threaded cylinder 9, a stud 10, and a ball bearing 12. The upper surface of the circular baffle 2 is locked with the semi-circular ring 4 by an internal hex bolt 5, and the semi-circular ring 4 protrudes from the circular baffle. A pair of connecting plates 6 are symmetrically fixed to the outer plate of the baffle 2. A support bar 8 extending into the bottom of the circular baffle 2 is welded to the plate head of the connecting plate 6 away from the semi-circular ring 4 via a vertical connecting plate 7. An internally threaded cylinder 9 is fixed to the plate surface of the support bar 8 away from the vertical connecting plate 7, and a stud 10 is screwed into the internal thread of the internally threaded cylinder 9. The top of the stud 10 has a recessed ball-holding cavity 11 for the ball 12 to be inserted and rotated, and a recessed groove 14 is provided on the surface of the stud 10 outside the ball 12.

[0027] Wherein, the head of the connecting plate 6 and the head of the support bar 8 are welded to the surface of the vertical plate of the vertical connecting plate 7, and the length of the support bar 8 is greater than the length of the plate of the connecting plate 6.

[0028] By adopting the above technical solution, the plate heads of the connecting plate 6 and the support bar 8 are welded to the vertical plate body of the vertical connecting plate 7 for connection, and the support bar 8 can extend from below the connecting plate 6 to below the circular baffle 2.

[0029] Among them, an L-shaped baffle 15 is welded between the L-shaped plate body formed by welding the connecting plate 6 and the vertical connecting plate 7;

[0030] By adopting the above technical solution, the L-shaped baffle 15 welded to the connecting plate 6 and the vertical connecting plate 7 can be blocked outside the circular baffle 2. When the plates and profiles used for transformer clamp production are ground by the tools of the chamfering machine body 1 and generate flying chips, the waste chips flying towards the L-shaped baffle 15 can be blocked and fall off.

[0031] The internally threaded cylinder 9 has a vertically threaded hole inside its cylinder body, and a stud 10 is screwed into the threaded hole of the internally threaded cylinder 9. The height of the stud 10 is greater than the depth of the threaded hole of the internally threaded cylinder 9.

[0032] By adopting the above technical solution, the internal threaded cylinder 9 can be connected to the stud 10 by threading the threaded hole, and the stud 10 extending out of the internal threaded cylinder 9 allows its recessed groove 14 to be exposed outward, making it convenient to rotate the stud 10.

[0033] A rubber ring 13 is fixed at the opening of the ball-holding cavity 11, and the body of the rubber ring 13 is fitted over the rolling ball 12.

[0034] By adopting the above technical solution, after the ball 12 is installed in the ball clamping cavity 11, when the ball 12 rotates in the ball clamping cavity 11, the rubber ring 13 can rub the dust on the surface of the ball 12 to prevent dust from entering the ball clamping cavity 11.

[0035] Among them, the semicircular ring 4 and the circular baffle 2 are vertically provided with threaded mounting holes, and the semicircular ring 4 and the circular baffle 2 are screwed with internal hexagon bolts 5.

[0036] By adopting the above technical solution, the semi-circular ring 4 and the circular baffle 2 are connected by screwing in the threaded mounting holes with hexagonal socket bolts 5.

[0037] It should be noted that this utility model is a chamfering device for plates and profiles used in the production of transformer clamping parts. A retaining mechanism 3 is installed at the circular baffle 2 of an existing handheld pneumatic chamfering machine. The semicircular ring 4 of the retaining mechanism 3 is locked above the circular baffle 2 of the chamfering machine body 1 by hexagonal socket bolts 5. Then, the support bar 8, connected to the connecting plate 6 of the semicircular ring 4 by the vertical connecting plate 7, can extend into the circular baffle 2 and below the chamfering cutter and auxiliary bearing of the chamfering machine body 1. At this time, the edge of the plate or profile used in the production of transformer clamping parts is... The chamfering machine body 1 is then removed from the transformer clamp production plate and profile area. A flathead wrench is inserted into the recessed groove 14 to rotate the stud 10, causing it to unscrew the internal threaded cylinder 9. After ensuring the ball 12 at the head of the stud 10 can cooperate with the circular baffle 2 to adhere to both sides of the transformer clamp production plate and profile, the edge of the transformer clamp production plate and profile is then placed between the ball 12 and the circular baffle 2. Between the baffles 2, the worker operates the chamfering machine body 1, so that the auxiliary bearing of the chamfering machine body 1 rests against the outside of the plate to be chamfered, ensuring that the cutter of the chamfering machine body 1 can approach the edge burr of the plate for chamfering while rotating. Then, the worker pushes the chamfering machine body 1 with the holding mechanism 3, so that the chamfer of the chamfering machine body 1 is against the edge corner of the plate and profile used for transformer clamp production for straight chamfering. The other edges and corners of the plate and profile used for transformer clamp production can also be held by the holding mechanism 3 for chamfering. After the chamfering is completed, the chamfering machine body 1 with the holding mechanism 3 can be removed from the plate and profile used for transformer clamp production. This utility model is an improvement on the existing handheld pneumatic chamfering machine. The semi-circular ring 4 of the holding mechanism 3 can be removed from the circular baffle 2 of the handheld pneumatic chamfering machine after the hexagonal bolt 5 is unscrewed, so as not to affect the chamfering of other hole and groove walls of the handheld pneumatic chamfering machine.

[0038] It should be noted that this utility model is a plate and profile chamfering device for transformer clamp production. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A plate and profile chamfering device for transformer clamp production, comprising a chamfering machine body (1) and a circular baffle (2), wherein the circular baffle (2) is fixed outside the housing of the chamfering machine body (1) near the chamfering tool, characterized in that: It also includes a retaining mechanism (3), which includes a semi-circular ring (4), a connecting plate (6), a vertical connecting plate (7), a support bar (8), an internally threaded cylinder (9), a stud (10), and a ball bearing (12). The upper surface of the circular baffle (2) is locked with the semi-circular ring (4) by an internal hex bolt (5), and the connecting plate (6) is symmetrically fixed to the outer surface of the circular baffle (2) with the semi-circular ring (4) protruding from it. The connecting plate (6) is located away from the semi-circular ring (4). A support bar (8) extending into the bottom of the circular baffle (2) is welded to the top of the plate via a vertical connecting plate (7). An internal threaded cylinder (9) is fixed to the plate surface away from the vertical connecting plate (7), and a stud (10) is screwed into the internal thread of the internal threaded cylinder (9). The top of the stud (10) is recessed to form a ball-holding cavity (11) for the ball (12) to be inserted and rotated, and a recessed groove (14) is formed on the surface of the stud (10) outside the ball (12).

2. The plate and profile chamfering device for transformer clamp production according to claim 1, characterized in that: The head of the connecting plate (6) and the head of the support (8) are welded to the surface of the vertical plate of the vertical connecting plate (7), and the length of the support (8) is greater than the length of the plate of the connecting plate (6).

3. The plate and profile chamfering device for transformer clamp production according to claim 1, characterized in that: An L-shaped baffle (15) is welded between the L-shaped plate body formed by welding the connecting plate (6) and the vertical connecting plate (7).

4. The plate and profile chamfering device for transformer clamp production according to claim 1, characterized in that: The internally threaded cylinder (9) has a vertically threaded hole inside, and a stud (10) is screwed into the threaded hole of the internally threaded cylinder (9). The height of the stud (10) is higher than the depth of the threaded hole of the internally threaded cylinder (9).

5. The plate and profile chamfering device for transformer clamp production according to claim 1, characterized in that: A rubber ring (13) is fixed at the opening of the ball-holding cavity (11), and the ring body of the rubber ring (13) is fitted over the rolling ball (12).

6. The plate and profile chamfering device for transformer clamp production according to claim 1, characterized in that: The surfaces of the semicircular ring (4) and the circular baffle (2) are vertically provided with threaded mounting holes, and hexagonal bolts (5) are screwed into the threaded mounting holes of the semicircular ring (4) and the circular baffle (2).