Tool clamp for grinding plunger and barrel assembly sliding block

Abstract

The utility model relates to a tool clamp for grinding a plunger and barrel assembly sliding block, which is used for the sliding block, the sliding block is axially provided with a middle hole in a penetrating manner, the side surface is radially provided with an oil port, the oil port is communicated with the middle hole, and the side surface of the sliding block is also provided with a to-be-processed groove axially formed; the tool clamp comprises a base; the first positioning mechanism comprises a first positioning seat arranged on the base; the first end of the positioning shaft is rotatably arranged on the first positioning seat and penetrates through the middle hole; the nut is in threaded connection with the second end of the positioning shaft and clamps and fixes the sliding block with the first positioning seat; the second positioning mechanism comprises a second positioning seat arranged on the base; the second end of the positioning pin penetrates through the second positioning seat in a sliding manner. The positioning shaft penetrates through the middle hole of the sliding block, the nut is in threaded connection with the second end of the positioning shaft and clamps and fixes the sliding block, and axial movement of the sliding block is limited. The positioning pin axially slides relative to the second positioning seat and extends into the oil port, circumferential rotation of the sliding block is limited, positioning is stable and reliable, and grinding precision is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding tooling, in particular to a tooling fixture for grinding a plunger pair and a slider. Background Art

[0002] The plunger assembly structure includes a plunger core, a plunger sleeve and a slider. A positioning groove is provided on the side of the slider to be slidably connected to the positioning pin in the plunger sleeve. The positioning groove has high precision requirements and is difficult to process.

[0003] Therefore, it is necessary to design a fixture specifically for grinding the positioning groove of the plunger and slider.

[0004] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Utility Model Content

[0005] In view of the deficiencies in the prior art, the embodiment of the present utility model discloses a fixture for grinding a plunger and a slider, so as to meet the requirements of precise grinding of the plunger and the slider.

[0006] The technical solutions adopted in this utility model are as follows:

[0007] A tooling fixture for grinding a plunger pair and a slider is used for a slider, wherein the slider has a center hole extending axially therethrough and an oil port radially extending on the side surface, the oil port being connected to the center hole, and the side surface of the slider also has a groove to be processed axially therethrough, and the perpendicular line between the groove to be processed and the axis is perpendicular to the axis of the oil port; the tooling fixture comprises: a base; a first positioning mechanism comprising: a first positioning seat, arranged on the base; a positioning shaft, a first end of which is arranged on the first positioning seat, and a second end passing through the center hole; a nut, threadedly connected to the second end of the positioning shaft, clamping the slider with the first positioning seat; a second positioning mechanism comprising: a second positioning seat, arranged on the base; a positioning pin, a second end of which slides through the second positioning seat and extends into the oil port.

[0008] A further technical solution is that there are two oil ports, which are symmetrically opened on both sides of the slider; the positioning shaft includes: a transverse hole, which is opened on the positioning shaft; wherein the positioning pin passes through the two oil ports and the transverse hole.

[0009] Its further technical solution is that the positioning shaft includes: a first shaft body, which is sleeved on the outside of the positioning shaft, coaxially arranged with the positioning shaft, and has an outer diameter larger than the positioning shaft; wherein the first end of the first shaft body abuts the first positioning seat, and the second end of the first shaft body abuts the first end of the slider.

[0010] A further technical solution is that the first positioning seat and the second positioning seat are bearing seats.

[0011] A further technical solution is that the second positioning seat further includes: a shaft fork, which is arranged on the second positioning seat and is located away from the slider; wherein the first end of the positioning pin passes through the shaft fork.

[0012] A further technical solution is that the positioning pin includes a handle arranged at the first end of the positioning pin.

[0013] A further technical solution is that the first positioning mechanism includes: a gasket, which is arranged between the nut and the second end of the slider; wherein the positioning shaft passes through the gasket.

[0014] A further technical solution is that the base includes: fixing grooves, which are opened on both sides of the base.

[0015] The beneficial effects of the embodiments of the present utility model are as follows:

[0016] (1) The fixture for grinding the plunger and slider of the utility model includes a base, a first positioning mechanism and a second positioning mechanism. The first positioning mechanism includes a first positioning seat, a positioning shaft and a nut. The positioning shaft is passed through the middle hole of the slider, and the nut is threadedly connected to the second end of the positioning shaft and clamped to fix the slider, thereby limiting the axial movement of the slider. The second positioning mechanism includes a second positioning seat and a positioning pin. The positioning pin is axially slid relative to the second positioning seat and extended into the oil port to limit the circumferential rotation of the slider, ensuring that the groove to be processed of the slider faces directly upward, the positioning is stable and reliable, and the grinding accuracy is guaranteed.

[0017] (2) Furthermore, there are two oil ports, symmetrically located on either side of the slider, and the positioning shaft includes a transverse hole, which is located on the positioning shaft. A positioning pin passes through the two oil ports and the transverse hole, ensuring that the nut can be tightened to clamp the slider while ensuring that the groove to be machined on the slider is facing upward. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a schematic top view of the structure of the fixture for grinding the plunger and slider of the utility model.

[0019] Figure 2 It is a side structural schematic diagram of the first positioning mechanism in the fixture for grinding the plunger and slider of the utility model.

[0020] Figure 3 This is a front view structural schematic diagram of the second positioning mechanism in the fixture for grinding the plunger and slider of the utility model.

[0021] In the picture:

[0022] 1. Base; 11. Fixing groove; 2. First positioning mechanism; 21. First positioning seat; 22. Positioning shaft; 221. Horizontal hole; 222. First shaft body; 23. Gasket; 24. Nut; 3. Second positioning mechanism; 31. Second positioning seat; 32. Positioning pin; 321. Handle; 33. Shaft fork; 4. Slider; 41. Center hole; 42. Oil port; 43. Groove to be processed. DETAILED DESCRIPTION

[0023] The specific implementation of the present utility model will be described below with reference to the accompanying drawings.

[0024] In order to make the purpose, technical solution and advantages of the present invention clearer, the device proposed in the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the accompanying drawings adopt a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the implementation method of the present invention. In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0025] Example:

[0026] This embodiment discloses a fixture for grinding a plunger and a slider.

[0027] like Figures 1 to 3 As shown, the fixture is used for a slider 4. The slider 4 has a central hole 41 extending axially therethrough, and an oil port 42 extending radially along the side thereof. The oil port 42 communicates with the central hole 41. The slider 4 also has a groove 43 to be machined extending axially therethrough. The perpendicular line between the groove 43 and the axis is perpendicular to the axis of the oil port 42. For example, there are two oil ports 42, symmetrically located on either side of the slider 4.

[0028] The fixture includes a base 1 , a first positioning mechanism 2 and a second positioning mechanism 3 .

[0029] The first positioning mechanism 2 includes a first positioning seat 21, a positioning shaft 22, and a nut 24. The first positioning seat 21 is mounted on the base 1. The first end of the positioning shaft 22 is mounted on the first positioning seat 21, and the second end extends through the central hole 41. The nut 24 is threadedly connected to the second end of the positioning shaft 22, clamping the slider 4 with the first positioning seat 21. Exemplarily, the first positioning seat 21 is a bearing seat. The second end of the positioning shaft 22 has threads on its outer side, which are threadedly connected to the nut 24.

[0030] The second positioning mechanism 3 includes a second positioning seat 31 and a positioning pin 32. The second positioning seat 31 is provided on the base 1, and the second end of the positioning pin 32 slides through the second positioning seat 31 and extends into the oil port 42. Exemplarily, the second positioning seat 31 is a bearing seat.

[0031] Furthermore, the positioning shaft 22 includes a transverse hole 221, which is formed on the positioning shaft 22. The positioning pin 32 passes through the two oil ports 42 and the transverse hole 221, ensuring that the nut 24 can be tightened to clamp the slider 4 while ensuring that the groove 43 to be processed of the slider 4 faces upward.

[0032] Furthermore, the positioning shaft 22 includes a first shaft body 222, which is sleeved outside the positioning shaft 22, coaxially arranged with the positioning shaft 22, and has an outer diameter greater than that of the positioning shaft 22. The first end of the first shaft body 222 abuts the first positioning seat 21, and the second end of the first shaft body 222 abuts the first end of the slider 4 to adjust the axial position of the slider 4 and facilitate the cooperation between the first positioning mechanism 2 and the second positioning mechanism 3. Specifically, the first shaft body 222 and the positioning shaft 22 are integrally formed.

[0033] Furthermore, the second positioning seat 31 further includes a shaft fork 33, which is provided on the second positioning seat 31 and is located away from the slider 4. The first end of the positioning pin 32 passes through the shaft fork 33, supporting the positioning pin 32 while ensuring that the positioning pin 32 is in a horizontal state.

[0034] Furthermore, the positioning pin 32 includes a handle 321, which is arranged at the first end of the positioning pin 32 and is a columnar body. The handle 321 is coaxially arranged with the positioning pin 32 and is integrally formed. The outer diameter of the handle 321 is larger than the outer diameter of the positioning pin 32, which facilitates pushing and pulling the positioning pin 32.

[0035] Furthermore, the fixture includes a washer 23, which is disposed between the nut 24 and the second end of the slider 4. The positioning shaft 22 passes through the washer 23. The washer 23 increases the contact surface between the nut 24 and the second end of the slider 4, thereby improving the secure fixation of the slider 4.

[0036] Furthermore, the base 1 includes fixing grooves 11 , which are opened on both sides of the base 1 to facilitate fixing the base 1 on the grinding workbench.

[0037] In this embodiment, the positioning shaft 22 is passed through the hole 41 in the slider 4. The nut 24 is threadedly connected to the second end of the positioning shaft 22 and clamped to the first shaft 222 to secure the slider 4, thereby limiting axial movement of the slider 4. The positioning pin 32 is pushed and slid axially relative to the second positioning seat 31 into the oil port 42, limiting the circumferential rotation of the slider 4 and ensuring that the groove 43 to be machined on the slider 4 faces directly upward. The positioning is stable and reliable, ensuring grinding accuracy.

[0038] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. The fixture for grinding the plunger and slider is characterized by: Used for a slider (4), the slider (4) having a central hole (41) extending through the slider in the axial direction, an oil port (42) extending radially on the side surface, the oil port (42) being communicated with the central hole (41), the side surface of the slider (4) also having a groove (43) to be machined extending in the axial direction, the vertical line between the groove (43) to be machined and the axis being perpendicular to the axis of the oil port (42); The fixture comprises: Base (1); The first positioning mechanism (2) comprises: A first positioning seat (21) is arranged on the base (1); A positioning shaft (22), a first end of which is disposed on the first positioning seat (21) and a second end of which passes through the middle hole (41); A nut (24) is threadedly connected to the second end of the positioning shaft (22) and clamps the slider (4) with the first positioning seat (21); The second positioning mechanism (3) comprises: A second positioning seat (31) is arranged on the base (1); The second end of the positioning pin (32) slides through the second positioning seat (31) and extends into the oil port (42).

2. The fixture for grinding the plunger and slider according to claim 1, characterized in that: There are two oil ports (42) symmetrically arranged on both sides of the slider (4); The positioning shaft (22) comprises: A transverse hole (221) is formed on the positioning shaft (22); Wherein, the positioning pin (32) passes through the two oil ports (42) and the transverse hole (221).

3. The fixture for grinding the plunger and slider according to claim 1, characterized in that: The positioning shaft (22) comprises: A first shaft body (222) is sleeved on the outside of the positioning shaft (22), is coaxially arranged with the positioning shaft (22), and has an outer diameter larger than that of the positioning shaft (22); The first end of the first shaft (222) abuts against the first positioning seat (21), and the second end of the first shaft (222) abuts against the first end of the slider (4).

4. The fixture for grinding the plunger and slider according to claim 1, characterized in that: The first positioning seat (21) and the second positioning seat (31) are bearing seats.

5. The fixture for grinding the plunger and slider according to claim 1, characterized in that: The second positioning seat (31) also includes: A shaft fork (33) is arranged on the second positioning seat (31) and is located away from the slider (4); Wherein, the first end of the positioning pin (32) passes through the shaft fork (33).

6. The fixture for grinding the plunger and slider according to claim 5, characterized in that: The positioning pin (32) comprises: A handle (321) is provided at the first end of the positioning pin (32).

7. The fixture for grinding the plunger and slider according to claim 1, characterized in that: The first positioning mechanism (2) comprises: a washer (23) disposed between the nut (24) and the second end of the slider (4); Wherein, the positioning shaft (22) passes through the gasket (23).

8. The fixture for grinding the plunger and slider according to claim 1, characterized in that: The base (1) comprises: The fixing grooves (11) are provided on both sides of the base (1).

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