Plunger part gap measuring device

Abstract

The utility model relates to a plunger component gap measuring device, comprising a tool bottom plate; the tool bottom plate is provided with a manual bolt fastening vertical plate, and the manual bolt fastening vertical plate is provided with an axial clamping part used for axially limiting a sliding shoe; the gauge stand is arranged on the tool bottom plate in a sliding mode, the dial indicator is arranged on the gauge stand and used for abutting against a plunger body to measure the gap value of a plunger component, and the plunger body supporting structure is arranged on the tool bottom plate in a sliding mode and used for clamping the plunger component. According to the utility model, the V-shaped block is adopted to position and support the plunger body and the sliding shoe, thereby ensuring accurate position of a workpiece during measurement and reducing measurement deviation caused by installation errors; the dial indicator is used for measuring, the clearance value of the plunger component can be accurately read, errors are small, and operation is easy. In addition, the device is high in universality and suitable for measuring plunger components of various models, measurement of different specifications can be completed by adjusting the positions of the components, damage to the surfaces of workpieces can be avoided, and the precision and quality of the workpieces are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of measuring equipment technology, and in particular to a plunger component clearance measuring device. Background Technology

[0002] Piston components are commonly used parts in modern hydraulic motor systems. However, the axial clearance between parts on these components cannot be measured by conventional measuring tools. In existing technologies, the slipper end of the piston component is usually fixed by threads. The straight rod section of the piston component is supported by a support in the horizontal direction, and a dial indicator is attached to the tail of the piston body. The straight rod section of the piston component is pushed back and forth in the horizontal direction, and the axial clearance value is generated by reading the reciprocating value on the dial indicator.

[0003] The above measurement method has the following drawbacks:

[0004] 1. Difficulty in quantifying tension: Relying solely on the threaded fixation of the slipper end makes it impossible to precisely control the magnitude of the tension applied to the plunger component. The magnitude of the tension affects the accuracy of the measurement results, and the tension applied by different operators may vary, leading to unstable and unreliable measurement results.

[0005] 2. Difficulty in ensuring the direction of force: In actual operation, it is difficult to ensure that the tension is applied in the axial direction. If there is a deviation in the direction of the tension, the plunger component will be subjected to uneven force during the measurement process, generating additional lateral force, which will affect the accuracy of the dial indicator reading and thus make it impossible to accurately measure the axial clearance.

[0006] 3. Easily damaged parts: When measuring some small or precision plunger components, the need to push the straight rod section horizontally may cause collisions or friction with surrounding components, which may easily scratch the surface of the plunger component. This is especially true for parts with special coatings or high precision requirements, which may damage their surface quality and affect their performance and service life.

[0007] 4. Low measurement efficiency: During measurement, it is necessary to manually push the straight rod section of the plunger component back and forth in the horizontal direction and read the dial indicator value multiple times to generate the axial clearance value. The operation process is cumbersome, and the plunger component needs to be readjusted and fixed for each measurement. Measuring the axial clearance of a plunger component may take a long time, which is not suitable for large-scale production and makes it difficult to meet the production efficiency requirements. Utility Model Content

[0008] In view of this, the present invention proposes a plunger component clearance measuring device, which aims to solve the problems existing in the prior art.

[0009] Specifically, the present invention provides a plunger component clearance measuring device, comprising:

[0010] Tooling base plate;

[0011] A manual bolt fastening plate is provided on the tooling base plate, and an axial clamping component for axially limiting the slip shoe is provided on the manual bolt fastening plate.

[0012] A dial indicator is slidably mounted on the tooling base plate, and a dial indicator is mounted on the dial indicator to abut against the plunger body to measure the gap value of the plunger component.

[0013] And a plunger body support structure for clamping plunger components, which is slidably disposed on the tooling base plate.

[0014] Based on the above scheme, the tooling base plate is provided with a guide groove along its length to guide the movement direction of the gauge base and the plunger body support structure;

[0015] Specifically, a first T-shaped block matching the guide groove is provided at the bottom of the manually bolted mounting plate, and a second T-shaped block matching the guide groove is provided at the bottom of the base.

[0016] Based on the above solution, the axial clamping component includes:

[0017] Nut seat provided on the manual bolt fastening plate;

[0018] A fastening screw and handle for axially limiting the plunger component are provided on the nut seat;

[0019] A pressure piston, which is in contact with the fastening screw, is provided on the manual bolt fastening plate to abut against the slip shoe.

[0020] Based on the above scheme, it also includes: a stop block for clamping the slipper provided on the manual bolt fastening plate.

[0021] Based on the above scheme, the stop block is provided with a transverse waist hole for passing through a screw so that the stop block can move laterally relative to the manual bolt fastening plate.

[0022] Based on the above scheme, there are two stops, which are arranged opposite to each other on both sides of the slipper; wherein, the inner surfaces of the two stops are provided with limiting grooves for limiting the slipper.

[0023] Based on the above scheme, the plunger support structure includes:

[0024] The tooling base plate has a V-shaped block support that is slidably disposed thereon and a V-shaped block that is slidably disposed longitudinally on the V-shaped block support.

[0025] Based on the above scheme, the V-block support is provided with longitudinal waist holes for connecting the V-block.

[0026] Compared with existing technologies, this invention uses a V-block to position and support the plunger body and slide shoe, which ensures that the workpiece is in an accurate measurement position during measurement, reduces measurement deviations caused by installation errors, improves the accuracy of plunger component clearance measurement, increases measurement efficiency, and allows for switching between various plunger components. Furthermore, the left-right sliding design of the stop block and the longitudinal sliding design of the V-block make the device suitable for measuring various types of plunger components. Simply adjust the position of the relevant components according to the size of the plunger component to complete the clearance measurement of plunger components of different specifications, demonstrating strong versatility. Attached Figure Description

[0027] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0028] Figure 1 This is a schematic diagram of the plunger component clearance measuring device of this utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the plunger component clearance measuring device of this utility model (showing the guide groove, transverse waist hole and longitudinal waist hole);

[0030] Figure 3 for Figure 1 Sectional view along axis AA;

[0031] Figure 4 This is a schematic diagram of the axial clamping component of this utility model;

[0032] Figure 5 This is a schematic diagram of the structure of the plunger component clearance measuring device of this utility model (showing the tooling base plate, plunger body support structure and plunger component assembly state). Detailed Implementation

[0033] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, embodiments and features of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] like Figures 1-2As shown, this application provides a specific embodiment of a plunger component clearance measuring device, which includes: a tooling base plate 100, a manual bolt fastening plate 101 provided on the tooling base plate 100, a dial indicator 108 slidably provided on the tooling base plate 100, and a plunger body support structure slidably provided on the tooling base plate 100 for clamping the plunger component;

[0035] It also includes: an axial clamping component for axially limiting the plunger component (slipper) provided on the manual bolt fastening plate 101, and a dial gauge 109 provided on the gauge base 108 for abutting against the plunger body 205 to measure the gap value of the plunger component.

[0036] Specifically, such as Figure 2 As shown, a guide groove 100-1 is provided on the tooling base plate 100 along its length direction. A first T-shaped block 207 matching the guide groove 100-1 is provided at the bottom of the manual bolt fastening plate 101, and a second T-shaped block 209 matching the guide groove 100-1 is provided at the bottom of the table base 108.

[0037] The aforementioned plunger assembly typically consists of a plunger head, plunger rod, and plunger body 205. It is a drive device with reciprocating motion capabilities, used for positioning and fixing workpieces, or for pressurizing, sealing, and flow control in hydraulic systems. The plunger body 205, being part of the plunger assembly and its bottom, often has a cavity or pipe structure for guiding media flow. The end of the plunger body 205 has a ball-head structure, and the end of the slipper 204 has a ball socket. The ball head is placed within the ball socket, forming a ball-joint connection, allowing both to rotate flexibly without disengaging during operation.

[0038] As a specific implementation method, such as Figures 3-4As shown, the axial clamping component includes a nut seat 104 mounted on the manual bolt fastening plate 101, a fastening screw 103 and a handle 102 mounted on the nut seat 104 for axially limiting the plunger component, and a pressure piston 202 mounted on the manual bolt fastening plate 101 that contacts the fastening screw 103 and abuts against the slipper 204. To ensure stable pressure transmission, the plunger body 204 and the pressure piston 202 must be coaxial. However, in actual use, the plunger body 204 has different dimensions. To facilitate adjustment of the relative position of the plunger body 204 and the pressure piston 202, a specific implementation is proposed, which further includes a stop block 105 mounted on the manual bolt fastening plate 101 for clamping the slipper 204. The stop block 105 has a transverse waist hole 105-1. With this design, the stop block 105 is fixed to the manual bolt fastening plate 101 by a fourth hexagonal socket screw 203 and can slide left and right. Specifically, two stops 105 are positioned opposite each other on both sides of the slipper 204, and the opposite inner surfaces of the stops 105 are provided with limiting grooves for limiting the slipper 204 (e.g., Figure 4 (As shown).

[0039] Specifically, the pressure piston 202 cooperates with the plunger body 205. During measurement, the plunger body 202 is pushed against the slide shoe 204 by the plum blossom handle 102, ensuring a tight fit between the two and guaranteeing the accuracy of force transmission and positional relationship during measurement. Meanwhile, the push stop 105 abuts against the outer side of the ball socket of the slide shoe 204, serving to position and clamp the slide shoe 204, ensuring that the position of the slide shoe 204 is fixed, thereby stabilizing the position of the relevant components during the measurement process.

[0040] Specifically, the tooling base plate 100 is positioned by two cylindrical pins 112 and fixed by four second hexagon socket screws 111. The manual bolt fastening plate 101 is used, the Torx handle 102 is connected to the fastening screw 103 by internal thread, the nut seat 104 is fixed to the manual bolt fastening plate 101 by four third hexagon socket screws 201, the fastening screw 103 is connected to the nut seat 104 by thread, the fastening screw 103 is connected to the pressure piston 202 by T-slot, and the stop block 105 is fixed to the manual bolt fastening plate 101 by the fourth hexagon socket screw 203.

[0041] As a specific implementation method, such as Figure 5As shown, the plunger support structure includes a V-block support 107 slidably disposed on the tooling base plate 100 and a V-block 106 slidably disposed longitudinally on the V-block support 107. The V-block support 107 has a longitudinal slot 107-1 for connecting the V-block 106. This design allows the V-block to slide up and down within a groove on the V-block support 107. Specifically, the V-block 106 is positioned on the V-block support 107 via a groove and fixed to the V-block support 107 by a first hexagonal socket screw 110. The V-block support 107 is fixed to the tooling base plate 100 by a fifth hexagonal socket screw 206 and a first T-block 207.

[0042] During measurement, loosen the fourth hex socket screw 203, the fifth hex socket screw 206, the sixth hex socket screw 208, and the first hex socket screw 110. Place the plunger body 205 horizontally on the V-block 106, allowing the V-block 106 to slide up and down within the groove of the V-block support 107, ensuring the plunger body 205 is coaxial with the pressure piston 202. Then tighten the first hex socket screw 110. Push the two stops 105 against the outer side of the ball joint of the slipper 204, tighten the two fourth hex socket screws 203, and rotate the Torx handle 102 to press the pressure piston 202 against the slipper 204, ensuring a tight fit between the slipper 204 and the two stops 105. Move the V-block support 107 axially along the plunger body 205 until the V-block 106 is positioned in the center of the plunger body 205, and tighten the fifth hex socket screw 206. Push the dial indicator 108 to slide along the T-slot on the tooling base plate 100. The probe of the dial indicator 109 abuts against the tail of the plunger body 205, causing the pointer of the dial indicator 109 to rotate approximately 20 small divisions. Tighten the sixth internal hex screw 208. Rotate the dial of the dial indicator 109 until the pointer points to the 0 position. Hold the plunger body 205 with your finger and move it axially to read the reading of the dial indicator 109, thereby calculating the clearance value of the plunger component.

[0043] This utility model relates to a plunger component clearance measuring device. Before measurement, a dial indicator 109 is fixed on the base 108. During measurement, the plunger body 205 is placed on a V-block, and the V-block is slid up and down in the support groove to adjust the plunger body and the pressure piston to be coaxial, ensuring accurate measurement reference. Next, the relevant screws are tightened to fix the plunger body, sliding shoe, etc. The handle is rotated to make the pressure piston press against the sliding shoe, and the dial indicator probe presses against the tail of the plunger body. At this time, the dial indicator needle rotates a certain number of divisions (e.g., about 20 small divisions). The relevant screws are then tightened to fix the position of the base. Then, the dial indicator scale is rotated to make the needle point to 0. The plunger body is held by fingers and moved axially. The axial movement of the plunger body drives the dial indicator probe to move. The movement of the probe is transmitted through gears to make the pointer rotate through the corresponding angle. The reading is read from the scale, and this reading can be converted to obtain the clearance value of the plunger component. The above method, utilizing V-blocks to position and support the plunger body 205 and slide shoe 204, ensures the workpiece is in an accurate measurement position during measurement, reducing measurement deviations caused by installation errors. Measurement using dial indicator 109 allows for precise reading of the plunger component clearance value with minimal measurement error. Furthermore, it is convenient to operate: by loosening and tightening the corresponding hexagonal screws, the relative positions of the plunger body, pressure piston, and slide shoe can be easily adjusted, facilitating measurement. Only simple tools are required during measurement, making the operation relatively simple. This method is applicable to measuring various types of plunger components; simply adjusting the positions of relevant components according to the plunger component's dimensions allows for clearance measurements of plunger components of different specifications, demonstrating strong versatility. Moreover, by rationally setting the positions and mating relationships of each component during measurement, damage to the surfaces of the plunger body and slide shoe can be avoided, ensuring the workpiece's accuracy and surface quality.

[0044] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A plunger component clearance measuring device, characterized in that, include: Tooling base plate (100); A manual bolt fastening plate (101) is provided on the tooling base plate (100), and an axial clamping component for axially limiting the slip shoe (204) is provided on the manual bolt fastening plate (101). A dial indicator (108) is slidably disposed on the tooling base plate (100), and a dial indicator (109) is disposed on the dial indicator (108) for abutting against the plunger body (205) to measure the gap value of the plunger component. And a plunger body support structure for clamping plunger components, which is slidably disposed on the tooling base plate (100).

2. The plunger component clearance measuring device according to claim 1, characterized in that, The tooling base plate (100) is provided with a guide groove (100-1) along its length direction for guiding the movement direction of the gauge base (108) and the plunger body support structure; Among them, a first T-shaped block (207) matching the guide groove (100-1) is provided at the bottom of the manual bolt fastening plate (101), and a second T-shaped block (209) matching the guide groove (100-1) is provided at the bottom of the base (108).

3. The plunger component clearance measuring device according to claim 1, characterized in that, The axial clamping component includes: A nut seat (104) is provided on the manual bolt fastening plate (101); A fastening screw (103) and a handle (102) for axially limiting the plunger component are provided on the nut seat (104); A pressure piston (202) is provided on the manual bolt fastening plate (101) and contacts the fastening screw (103) to abut against the slip shoe (204).

4. The plunger component clearance measuring device according to claim 3, characterized in that, Also includes: A stop (105) for clamping the slipper (204) is provided on the manual bolt fastening plate (101).

5. The plunger component clearance measuring device according to claim 4, characterized in that, The stop block (105) is provided with a transverse waist hole (105-1) for passing through a screw so that the stop block can move laterally relative to the manual bolt fastening plate (101).

6. The plunger component clearance measuring device according to claim 4 or 5, characterized in that, There are two stops (105), and the two stops (105) are arranged opposite to each other on both sides of the slipper (204); The two blocks (105) are provided with limiting grooves on their opposite inner sides for limiting the sliding shoe (204).

7. The plunger component clearance measuring device according to claim 1, characterized in that, The plunger support structure includes: A V-shaped block support (107) is slidably disposed on the tooling base plate (100), and a V-shaped block (106) is slidably disposed longitudinally on the V-shaped block support (107).

8. The plunger component clearance measuring device according to claim 7, characterized in that, The V-block support (107) is provided with a longitudinal waist hole (107-1) for connecting the V-block (106).

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