Valve rod end grinding machine

Abstract

The utility model relates to the technical field of engine valves, and discloses a valve rod end grinding machine which comprises a base, a clamping assembly is arranged above the base and comprises a bearing seat, the bearing seat is fixedly connected with the upper portion of the base, the front face and the rear face of the bearing seat are respectively and fixedly connected with two supporting plates, and the supporting plates are arranged on the bearing seat. A clamping plate is elastically connected to the faces, facing each other, of the two supporting plates through springs, the clamping plate is slidably connected with the upper portion of the bearing seat, a pressurizing assembly is arranged on the left side of the bearing seat and comprises a screw rod, the screw rod is rotatably connected with the left side of the bearing seat, and the outer surface of the screw rod is sleeved with a sliding seat in a threaded mode; the right side of the sliding seat is fixedly connected with two pressing strips. And the pressurizing assembly slides rightwards to enable the clamping assembly to clamp the engine valve rod, the engine valve rod can be clamped in the middle, and the effect of facilitating positioning for accurate grinding is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of engine valves, in particular to a valve stem end grinder. Background Art

[0002] The function of the valve is to input air into the engine and discharge the exhaust gas after combustion. From the perspective of engine structure, it is divided into intake valve and exhaust valve. The function of the intake valve is to suck air into the engine and mix it with fuel for combustion; the function of the exhaust valve is to discharge the exhaust gas after combustion and dissipate heat.

[0003] For example, the Chinese patent publication number CN219005522U, "A valve stem end face grinder", discloses a valve stem end face grinder, including a grinder base, a fixture assembly and a grinding assembly, wherein the fixture assembly includes a support rod, a horizontal plate, a vertical plate, a clamping plate A, a hydraulic cylinder A, a hydraulic rod A and a clamping plate B, a support rod integrally formed with the horizontal plate is fixedly connected to one side of the upper surface of the grinder base, a clamping plate A is fixedly connected to an outer wall of one side of the vertical plate, and a hydraulic cylinder A is detachably connected to the outer wall on the same side of the vertical plate and the clamping plate A by bolts; the valve stem end face grinder, by placing the valve stem in the symmetrical grooves on the clamping plates A and B, and then starting the switch of the hydraulic cylinder A, the hydraulic cylinder A drives the clamping plate B to approach the direction of the clamping plate A through the hydraulic rod A, and the two clamping plates are clamped and fixed after being brought together, and by starting the servo motor switch, the servo motor drives the transmission shaft B to rotate, and drives the vertical plate to rotate, and then adjusts the end face angle of the valve stem, thereby improving practicality.

[0004] However, in actual use, when clamping the valve stem, the clamping plate B will apply force from one direction to clamp the valve stem. When the valve stem needs to be positioned, due to the different sizes of different valve stems, clamping by applying force from only one direction will cause inconvenience to the subsequent positioning of the valve stem. It is not convenient to clamp the valve stem in the center to prevent the valve stem from deviating to one side, and it is not convenient to achieve precise positioning. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a valve stem end grinder.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a valve stem end grinder comprises a base, and a clamping assembly is arranged above the base;

[0007] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0008] Preferably, the pressurizing assembly further comprises a first slide rail, wherein the first slide rail is fixedly connected to the upper portion of the base and is slidably connected to the lower portion of the sliding seat.

[0009] Preferably, the driving assembly includes a connecting block, the connecting block is fixedly connected to the front of the sliding seat, a first rack is fixedly connected to the right side of the connecting block, a gear is meshed behind the first rack, the gear is rotatably connected to the top of the base, a second rack is meshed behind the gear, and a processing assembly is provided on the right side of the second rack. When the sliding seat slides to the right, the connecting block will be driven to slide the first rack to the right. When the first rack slides to the right, the gear will be rotated. When the gear is rotated, the second rack will be rotated, so that the second rack pulls the sliding table to slide to the left on the second slide rail, so that the grinder on the sliding table is close to the engine valve stem clamped by the two clamps.

[0010] Preferably, the processing assembly includes a second slide rail, the second slide rail is fixedly connected to the top of the base, a sliding table is slidably connected to the top of the second slide rail, the sliding table is fixedly connected to the right end of the second rack, and a grinder is fixedly installed above the sliding table. When the grinder on the sliding table is close to the engine valve stem clamped by the two clamps, the grinder itself is adjusted to fit with the end of the engine valve stem to achieve the effect of grinding the end of the engine valve stem. After the grinding process is completed, the sliding seat is driven to slide to the left on the first slide rail by rotating the screw to remove the pressure strip from the clamp. The clamp will be reset under the action of the spring to loosen the engine valve stem. At the same time, the grinder will also be away from the engine valve stem, so as to facilitate material unloading.

[0011] Preferably, a first opening is provided on the left side of the sliding platform, and the first opening is adapted to fit the first rack.

[0012] Preferably, a second opening is provided on the right side of the sliding seat, and the second opening is adapted to fit the second rack.

[0013] Compared with the prior art, the utility model provides a valve stem end grinder, which has the following beneficial effects:

[0014] 1. The valve stem end grinder can clamp the engine valve stem by sliding the pressure component to the right so that the clamping component can clamp the engine valve stem, so as to centrally clamp the engine valve stem and facilitate positioning for precise grinding.

[0015] Second, the valve stem end grinder can make the driving component drive the processing component to move toward the clamping component while the pressure component slides to the right. When the clamping component releases the engine valve stem, the processing component will move away from the clamping component, which is convenient for loading and unloading the clamping component. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a left view of the overall structure of the utility model;

[0019] Figure 3 For this utility model Figure 1 A schematic diagram of the enlarged structure in the middle.

[0020] In the figure: 1. base; 2. clamping assembly; 201. bearing seat; 202. support plate; 203. spring; 204. clamping plate; 3. pressurizing assembly; 301. screw; 302. sliding seat; 303. pressure strip; 304. first slide rail; 4. driving assembly; 401. connecting block; 402. first rack; 403. gear; 404. second rack; 5. processing assembly; 501. second slide rail; 502. sliding table; 503. grinder; 6. first opening; 7. second opening. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] like Figure 1-3 As shown, the utility model provides a valve stem end grinding machine, comprising a base 1, and a clamping assembly 2 is arranged above the base 1;

[0023] The clamping assembly 2 includes a bearing seat 201, an opening is provided below the bearing seat 201 for accommodating the driving assembly 4, the bearing seat 201 is fixedly connected to the top of the base 1, and two support plates 202 are fixedly connected to the front and rear surfaces of the bearing seat 201 respectively, and the two support plates 202 are elastically connected to a clamping plate 204 on the sides facing each other through a spring 203, and an arc-shaped groove is provided on the clamping plate 204 for clamping the engine valve stem, and the clamping plate 204 is slidably connected to the top of the bearing seat 201, and a dovetail groove is provided above the bearing seat 201 for sliding of the clamping plate 204, and a pressurizing assembly 3 is provided on the left side of the bearing seat 201, and the pressurizing assembly 3 is provided on the left side of the bearing seat 201. Component 3 includes a screw rod 301, which is rotatably connected to the left side of the bearing seat 201. A sliding seat 302 is provided on the outer surface of the screw rod 301 through a threaded sleeve. A pressure strip 303 is fixedly connected to the right side of the sliding seat 302. There are two pressure strips 303. The two pressure strips 303 are movably fitted with two clamps 204. The pressurizing component 3 also includes a first slide rail 304, which is fixedly connected to the top of the base 1 and slidably connected to the bottom of the sliding seat 302. The cross-sectional shape of the first slide rail 304 is a trapezoid, which is used for the sliding of the sliding seat 302. A driving component 4 is provided on the right side of the sliding seat 302.

[0024] In this embodiment, the clamping assembly 2 clamps the engine valve stem by sliding the pressure assembly 3 to the right, so that the engine valve stem can be clamped in the center, which facilitates positioning for precise grinding.

[0025] like Figure 1-3 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the driving component 4 includes a connecting block 401, the connecting block 401 is fixedly connected to the front of the sliding seat 302, a first rack 402 is fixedly connected to the right side of the connecting block 401, a gear 403 is meshed behind the first rack 402, the gear 403 is rotatably connected to the top of the base 1, a second rack 404 is meshed behind the gear 403, a processing component 5 is arranged on the right side of the second rack 404, the processing component 5 includes a second slide rail 501, the second slide rail 501 is fixedly connected to the top of the base 1, and the second slide rail 501 is slidably connected to the top of the base 1. There is a sliding table 502, which will not fall off from the top of the second slide rail 501. The sliding table 502 is fixedly connected to the right end of the second rack 404. A grinder 503 is fixedly installed on the top of the sliding table 502. The structure of the grinder 503 itself can be telescopically displaced and the angle can be adjusted. It is a prior art. A first opening 6 is opened on the left side of the sliding table 502, and the first opening 6 is adapted to the first rack 402. The first rack 402 can be inserted into the first opening 6. A second opening 7 is opened on the right side of the sliding seat 302, and the second opening 7 is adapted to the second rack 404. The second rack 404 can be inserted into the second opening 7.

[0026] In this embodiment, when the pressure component 3 slides to the right, the driving component 4 will also drive the processing component 5 to move toward the clamping component 2. When the clamping component 2 releases the engine valve stem, the processing component 5 will move away from the clamping component 2, which facilitates the loading and unloading of the clamping component 2.

[0027] The following is a detailed description of the working principle of the valve stem end grinder.

[0028] like Figure 1-3 As shown, when in use, the engine valve stem to be polished is first placed between the two clamping plates 204, and then the sliding seat 302 is driven to slide to the right on the first slide rail 304 by rotating the screw rod 301. The sliding of the sliding seat 302 to the right will drive the pressure strip 303 to press against the clamping plate 204, so that the two clamping plates 204 are close to each other, so as to achieve the effect of centering the engine valve stem. When the sliding seat 302 slides to the right, it will also drive the connecting block 401 to slide the first rack 402 to the right. When the first rack 402 slides to the right, the gear 403 is driven to rotate. When the gear 403 rotates, the second rack 404 is driven to pull the second rack 404. The sliding table 502 slides to the left on the second slide rail 501, so that the grinder 503 on the sliding table 502 is close to the engine valve stem clamped on the two clamps 204. At this time, the structure of the grinder 503 itself is adjusted to make it fit with the end of the engine valve stem, so as to grind the end of the engine valve stem. After the grinding process is completed, the sliding seat 302 is driven to slide to the left on the first slide rail 304 by rotating the screw 301, so that the pressure strip 303 is removed from the clamp 204, and the clamp 204 will be reset under the action of the spring 203 to loosen the engine valve stem. At the same time, the grinder 503 will also be away from the engine valve stem, so as to facilitate unloading.

Claims

1. A valve stem end grinding machine, comprising a base (1), characterized in that: A clamping assembly (2) is arranged above the base (1); The clamping assembly (2) comprises a bearing seat (201), wherein the bearing seat (201) is fixedly connected to the top of the base (1), and two support plates (202) are fixedly connected to the front and rear surfaces of the bearing seat (201) respectively; the two sides of the two support plates (202) facing each other are elastically connected to a clamping plate (204) via a spring (203); the clamping plate (204) is slidably connected to the top of the bearing seat (201); a pressurizing assembly (3) is arranged on the left side of the bearing seat (201); the pressurizing assembly (3) comprises a screw rod (301), wherein the screw rod (301) is rotatably connected to the left side of the bearing seat (201); a sliding seat (302) is threadedly sleeved on the outer surface of the screw rod (301); a pressure strip (303) is fixedly connected to the right side of the sliding seat (302); the number of the pressure strips (303) is two, and the two pressure strips (303) are movably fitted with the two clamping plates (204); and a driving assembly (4) is arranged on the right side of the sliding seat (302).

2. The valve stem end grinding machine according to claim 1, characterized in that: The pressurizing component (3) further comprises a first slide rail (304), wherein the first slide rail (304) is fixedly connected to the top of the base (1), and the first slide rail (304) is slidably connected to the bottom of the sliding seat (302).

3. The valve stem end grinding machine according to claim 1, characterized in that: The driving assembly (4) comprises a connecting block (401), wherein the connecting block (401) is fixedly connected to the front of the sliding seat (302), a first rack (402) is fixedly connected to the right side of the connecting block (401), a gear (403) is meshed at the rear of the first rack (402), the gear (403) is rotatably connected to the top of the base (1), a second rack (404) is meshed at the rear of the gear (403), and a processing assembly (5) is arranged at the right side of the second rack (404).

4. The valve stem end grinding machine according to claim 3, characterized in that: The processing assembly (5) comprises a second slide rail (501), the second slide rail (501) is fixedly connected to the top of the base (1), a sliding table (502) is slidably connected to the top of the second slide rail (501), the sliding table (502) is fixedly connected to the right end of the second rack (404), and a grinder (503) is fixedly installed above the sliding table (502).

5. The valve stem end grinding machine according to claim 4, characterized in that: A first opening (6) is provided on the left side of the sliding platform (502), and the first opening (6) is adapted to fit the first rack (402).

6. The valve stem end grinding machine according to claim 3, characterized in that: A second opening (7) is provided on the right side of the sliding seat (302), and the second opening (7) is adapted to fit the second rack (404).

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