Chamfering machining tool

Abstract

The utility model discloses a chamfering tool which comprises a workbench, a fixing piece for fixing an overflow valve body and a stamping piece for chamfering the overflow valve body. The fixing part is arranged on the workbench, the stamping part is arranged above the fixing part, and the stamping direction of the stamping part faces the position, where the overflow valve body is fixed, of the fixing part. The fixing piece comprises a fixing rod penetrating through the valve element hole and a chamfering protruding block arranged on the positioning rod. When the fixing rod penetrates through the valve element hole, the chamfering protruding block is just arranged in the oil inlet hole or the oil outlet hole in a penetrating mode, and the stamping end of the stamping part is aligned to the direction of the chamfering protruding block. Chamfering machining of the valve element hole and the oil inlet hole or the oil outlet hole in the overflow valve is achieved, and chamfering operation of the valve element hole in the overflow valve is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of overflow valve chamfering, in particular to a chamfering tool. Background Art

[0002] The relief valve is a hydraulic pressure control valve that mainly plays the role of constant pressure relief, pressure stabilization, system unloading and safety protection in hydraulic equipment.

[0003] See attached Figure 3 The relief valve includes a relief valve body, a valve core hole, an oil inlet and an oil outlet. During the assembly or use of the relief valve, damage to the O-ring or combined seal ring, or loosening of the mounting screws or pipe joints may cause unnecessary external leakage. In order to facilitate the installation of the relief valve on the valve body, chamfering is performed at the connection between the valve core hole and the oil inlet, or between the valve core hole and the oil outlet. Since the chamfered part is inside the valve core hole, it will cause trouble to the chamfer inside the hole, which needs to be solved. Utility Model Content

[0004] The present application provides a chamfering tool for realizing chamfering of a valve core hole and an oil inlet hole or an oil outlet hole in a relief valve.

[0005] The present application provides a chamfering tool, comprising a workbench, a fixing part for fixing a relief valve body, and a stamping part for chamfering the relief valve body; the fixing part is arranged on the workbench, the stamping part is arranged above the fixing part, and the stamping direction of the stamping part is toward the position where the fixing part fixes the relief valve body; the fixing part comprises a fixing rod passing through a valve core hole and a chamfering protrusion arranged on the fixing rod; when the fixing rod passes through the valve core hole, the chamfering protrusion is just passed through the oil inlet hole or the oil outlet hole, and the stamping end of the stamping part is aligned in the direction of the chamfering protrusion.

[0006] By adopting the above technical scheme, when it is necessary to chamfer the connection between the valve core hole and the oil inlet hole, or the connection between the valve core hole and the oil outlet hole in the overflow valve, the fixed rod passes through the valve core hole of the overflow valve, and the chamfered protrusion is just passed through the oil inlet hole or the oil outlet hole, and then moves toward the valve body of the overflow valve through the stamping part. At this time, the chamfered protrusion hits the connection between the valve core hole and the oil inlet hole, or the connection between the valve core hole and the oil outlet hole, thereby realizing the chamfering of the valve core hole and the oil inlet hole or the oil outlet hole in the overflow valve.

[0007] Optionally, the chamfered protrusion includes a penetration portion and a chamfered portion, the penetration portion is a cylindrical block suitable for penetration of the oil inlet hole or the oil outlet hole; the chamfered portion is located at the connection between the fixing rod and the chamfered protrusion and is provided with an arc chamfer.

[0008] By adopting the above technical solution, the chamfered protrusion is penetrated into the oil outlet hole or the oil inlet hole. When the stamping part is chamfered in the direction of the valve body of the relief valve, the arc chamfered surface on the chamfered protrusion is tightly abutted against the connection surface of the valve core hole and the oil inlet hole in the relief valve, or the connection surface of the valve core hole and the oil outlet hole in the relief valve, thereby realizing the chamfering operation.

[0009] Optionally, the fixing member includes a support frame connected to the workbench and a support block connected to the upper end of the support frame, the bottom of the support frame is connected to the workbench, and the fixing rod is arranged on a side wall of the support block.

[0010] Optionally, a telescopic rod is provided on the support block, and the lower end of the telescopic rod is fixed on the workbench. A limit head is provided on the other end of the telescopic rod and passes through the support block, and the lower surface of the limit head abuts against the upper surface of the support block; an elastic member is sleeved on the telescopic rod, one end of the elastic member abuts against the support block, and the other end of the elastic member abuts against the surface of the workbench.

[0011] Optionally, two telescopic rods and two supporting frames are provided and are symmetrically arranged on both sides of the supporting block.

[0012] Optionally, the support block is provided with a first contact block in the middle thereof, and the stamping part is provided with a second contact block which collides and contacts with the first contact block.

[0013] Optionally, the stamping part includes a stamping block arranged on the stamping part body, the stamping block is provided with an arc chamfer in the direction of the relief valve body, and the arc surface on the arc chamfer is suitable for the outer surface of the relief valve body.

[0014] Optionally, a positioning rod is further provided on the workbench, the lower end of the positioning rod is connected to the workbench, and the upper end of the positioning rod is in contact with a valve body of a relief valve installed on the fixing rod.

[0015] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0016] 1. The present application adopts a fixed rod to penetrate the valve core hole of the relief valve, and the chamfered protrusion is just penetrated in the oil inlet hole or the oil outlet hole. The stamping part moves toward the valve body of the relief valve, and the chamfered protrusion hits the connection between the valve core hole and the oil inlet hole, or the connection between the valve core hole and the oil outlet hole, thereby realizing the chamfering of the valve core hole and the oil inlet hole or the oil outlet hole in the relief valve, thereby facilitating the chamfering operation in the valve core hole.

[0017] 2. The present application adopts a chamfered protrusion which is penetrated into the oil outlet hole or the oil inlet hole. The circular chamfered surface on the chamfered protrusion is tightly abutted against the connection surface of the valve core hole and the oil inlet hole in the relief valve, or the connection surface of the valve core hole and the oil outlet hole in the relief valve, thereby realizing the chamfering operation so that the chamfered shape can be consistent with the chamfered protrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure of the chamfering tooling in the embodiment of the present application;

[0020] Figure 2 This is a schematic diagram of the overall structure of the workbench in the embodiment of the present application;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the overflow valve body in the embodiment of the present application.

[0022] Explanation of the accompanying drawings: 1. overflow valve body; 11. valve core hole; 12. oil inlet hole; 13. oil outlet hole; 2. workbench; 21. positioning rod; 3. fixing piece; 31. fixing rod; 32. chamfered protrusion; 321. penetration portion; 322. chamfered portion; 323. arc chamfer; 33. support frame; 34. support block; 341. telescopic rod; 342. limit head; 343. elastic member; 344. first contact block; 4. stamping part; 41. second contact block; 42. stamping block; 43. arc chamfer. DETAILED DESCRIPTION

[0023] The present application provides a chamfering tool for realizing chamfering of a valve core hole and an oil inlet hole or an oil outlet hole in a relief valve.

[0024] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product, or server that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or modules that are not clearly listed or inherent to these processes, methods, products, or devices.

[0026] Reference Figure 1 The chamfering tool of this embodiment includes a workbench 2, a fixing part 3 for fixing the relief valve body 1, and a stamping part 4 for chamfering the relief valve body 1. The fixing part 3 is arranged on the workbench 2, the stamping part 4 is arranged above the fixing part 3, and the stamping direction of the stamping part 4 is toward the position where the fixing part 3 fixes the relief valve body 1. In addition, the fixing part 3 includes a fixing rod 31 penetrating the valve core hole 11 and a chamfering protrusion 32 integrally arranged on the fixing rod 31. In addition, the stamping part 4 is fixed on the stamping machine. Figure 1 Not shown in the figure, the workbench 2 is fixed on the operating table of the punching machine for punching parts.

[0027] Reference Figure 2 When it is necessary to chamfer the connection between the valve core hole 11 and the oil inlet hole 12, or the connection between the valve core hole 11 and the oil outlet hole 13 in the relief valve, the fixing rod 31 penetrates the valve core hole 11 of the relief valve, and the chamfering protrusion 32 is just penetrated in the oil inlet hole 12 or the oil outlet hole 13, and then moves toward the valve body of the relief valve through the stamping part 4. At this time, the chamfering protrusion 32 hits the connection between the valve core hole 11 and the oil inlet hole 12, or the connection between the valve core hole 11 and the oil outlet hole 13, thereby realizing the chamfering of the valve core hole 11 and the oil inlet hole 12 or the oil outlet hole 13 in the relief valve.

[0028] Reference Figure 3 The chamfered protrusion 32 includes a penetration portion 321 and a chamfered portion 322. The penetration portion 321 is a cylindrical block suitable for penetration of the oil inlet hole 12 or the oil outlet hole 13. Specifically, the chamfered portion 322 is provided with an arc chamfer 323 at the connection between the fixing rod 31 and the chamfered protrusion 32. The chamfered protrusion 32 is penetrated in the oil outlet hole 13 or the oil inlet hole 12. When the stamping part 4 performs a chamfering operation toward the direction of the relief valve body 1, the surface of the arc chamfer 323 on the chamfered protrusion 32 is tightly abutted against the connection surface of the valve core hole 11 and the oil inlet hole 12 in the relief valve, or the connection surface of the valve core hole 11 and the oil outlet hole 13 in the relief valve, thereby realizing the chamfering operation.

[0029] Reference Figure 3 The fixing member 3 includes a support frame 33 connected to the workbench 2 and a support block 34 connected to the upper end of the support frame 33. In addition, the bottom of the support frame 33 is connected to the workbench 2. In the embodiment of the present application, the support frame 33 and the workbench 2 are connected by threaded connection. In addition, the fixing rod 31 is detachably arranged on a side wall of the support block 34.

[0030] At the same time, a telescopic rod 341 is also provided on the support block 34, and the lower end of the telescopic rod 341 is fixed on the workbench 2. Specifically, a limit head 342 is integrally provided at the other end of the telescopic rod 341 and penetrates the support block 34, and the lower surface of the limit head 342 abuts against the upper surface of the support block 34. Further, an elastic member 343 is sleeved on the telescopic rod 341, one end of the elastic member 343 abuts against the support block 34, and the other end of the elastic member 343 abuts against the surface of the workbench 2. When the stamping part 4 performs a stamping operation toward the fixing part 3, the telescopic rod 341 and the elastic member 343 play a buffering role. Specifically, in the embodiment of the present application, two telescopic rods 341 and the support frame 33 are provided, and are symmetrically arranged on both sides of the support block 34, thereby playing a stabilizing role.

[0031] Reference Figure 1 and Figure 2 A first contact block 344 is provided at the middle of the support block 34, and a second contact block 41 is provided on the stamping piece 4 to collide with the first contact block 344. The first contact block 344 and the second contact block 41 collide with each other, so that the stamping piece 4 can be stamped toward the fixing piece 3, and the second contact block 41 can adjust the distance on the stamping piece 4 body, thereby adjusting the depth of the chamfer.

[0032] Reference Figure 1 The stamping part 4 also includes a stamping block 42 arranged on the body of the stamping part 4. The stamping block 42 is provided with an arc chamfer 43 in the direction of the relief valve body 1. The arc surface on the arc chamfer 43 is suitable for the outer surface of the relief valve body 1. In addition, a positioning rod 21 is also installed on the workbench 2. The lower end of the positioning rod 21 is integrally connected to the workbench 2. When the stamping part 4 performs a stamping operation toward the fixing part 3, the upper end of the positioning rod 21 abuts against the relief valve body 1 installed on the fixing rod 31, thereby pre-positioning the relief valve body 1.

[0033] It should be noted that the above-mentioned sequence of the embodiments of the present application is only for description and does not represent the advantages and disadvantages of the embodiments. And the above-mentioned specific embodiments of this specification are described. Other embodiments are within the scope of the attached claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0034] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

[0035] This specification and drawings are merely exemplary illustrations of the present application and are deemed to cover any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, a person skilled in the art may make various modifications and variations to the present application without departing from the scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the present application and its equivalents, the present application intends to include these modifications and variations.

Claims

1. A chamfering tool, characterized in that: It comprises a workbench (2), a fixing part (3) for fixing the relief valve body (1), and a stamping part (4) for chamfering the relief valve body (1); The fixing part (3) is arranged on the workbench (2), the stamping part (4) is arranged above the fixing part (3), and the stamping direction of the stamping part (4) is toward the position where the fixing part (3) fixes the relief valve body (1); The fixing member (3) comprises a fixing rod (31) penetrating the valve core hole (11) and a chamfered protrusion (32) arranged on the fixing rod (31); when the fixing rod (31) penetrates the valve core hole (11), the chamfered protrusion (32) is just penetrated into the oil inlet hole (12) or the oil outlet hole (13), and the punching end of the punching member (4) is aligned in the direction of the chamfered protrusion (32).

2. The chamfering tool according to claim 1, wherein: The chamfered protrusion (32) comprises a penetration portion (321) and a chamfered portion (322); the penetration portion (321) is a cylindrical block suitable for penetrating the oil inlet hole (12) or the oil outlet hole (13); and the chamfered portion (322) is provided with an arc chamfer (323) at the connection between the fixing rod (31) and the chamfered protrusion (32).

3. The chamfering tool according to claim 1, wherein: The fixing member (3) comprises a support frame (33) connected to the workbench (2) and a support block (34) connected to the upper end of the support frame (33); the bottom of the support frame (33) is connected to the workbench (2); and the fixing rod (31) is arranged on a side wall of the support block (34).

4. The chamfering tool according to claim 3, wherein: The support block (34) is provided with a telescopic rod (341), the lower end of which is fixed on the workbench (2); the other end of the telescopic rod (341) is provided with a limiting head (342) which passes through the support block (34), the lower surface of the limiting head (342) abuts against the upper surface of the support block (34); an elastic member (343) is sleeved on the telescopic rod (341), one end of the elastic member (343) abuts against the support block (34), and the other end of the elastic member (343) abuts against the surface of the workbench (2).

5. The chamfering tool according to claim 4, characterized in that: Two telescopic rods (341) and two support frames (33) are provided and are symmetrically arranged on both sides of the support block (34).

6. The chamfering tool according to claim 5, characterized in that: The support block (34) is provided with a first contact block (344) at its center, and the stamping part (4) is provided with a second contact block (41) that contacts and collides with the first contact block (344).

7. The chamfering tool according to claim 1, wherein: The stamping part (4) comprises a stamping block (42) arranged on the stamping part (4) body, the stamping block (42) is provided with an arc chamfer (43) in the direction of the relief valve body (1), and the arc surface on the arc chamfer (43) is suitable for the outer surface of the relief valve body (1).

8. The chamfering tool according to claim 1, wherein: A positioning rod (21) is also provided on the workbench (2), the lower end of the positioning rod (21) is connected to the workbench (2), and the upper end of the positioning rod (21) abuts against the overflow valve body (1) mounted on the fixing rod (31).

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