Scribing device for circumferential surface of shaft part

Abstract

The utility model belongs to the field of machining, and relates to a circumferential surface scribing device for shaft parts. The shaft part circumferential surface scribing device is provided with a V-shaped block A and a V-shaped block B which are used for supporting a workpiece; a positioning ring fixedly connected with the workpiece is mounted at one end of the workpiece; a plurality of positioning grooves which are uniformly distributed along the circumference are formed in the outer circular surface of the positioning ring; a guide sleeve corresponding to the positioning groove is arranged on the bottom plate; a sliding block capable of sliding up and down is mounted in the guide sleeve; the upper end of the sliding block protrudes out of the guide sleeve; a positioning block is installed on the upper end face of the sliding block. The positioning block is of a structure which slides up and down along with the sliding block to enter or exit from the positioning groove. A scribing mechanism is arranged at the other end of the workpiece; the scribing mechanism is provided with a supporting block perpendicular to the bottom plate. A reticle plate located above the workpiece is arranged at the top end of the supporting block; and a scribing knife is mounted on the scribing plate. According to the utility model, the scribing operation of the circumferential surface of the shaft part is simple, the matching of numerical control equipment is not needed, and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical processing, and in particular relates to a device for engraving lines on the circumferential surface of shaft parts. Background Art

[0002] The engraved markings on the camshaft are usually used for gear installation positioning and valve mechanism adjustment during machine installation to make the installation process accurate and efficient. In the prior art, the marking lines and positioning references are located at both ends of shaft parts, and are usually processed using a turning and milling compound center, a machining center equipped with a dividing head and manual alignment solutions. The cost of the CNC equipment processing solution is relatively high, while the accuracy of the manual alignment solution is poor and the processing efficiency is low. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of the utility model is to provide a device for marking the circumferential surface of shaft parts.

[0004] The utility model adopts the following technical solutions to achieve the above purpose:

[0005] A circumferential surface marking device for shaft parts, the circumferential surface marking device for shaft parts comprises a V-shaped block A and a V-shaped block B for supporting a workpiece; the V-shaped block A and the V-shaped block B are placed on the same base; the two ends of the workpiece are supported on the V-shaped block A and the V-shaped block B; a positioning ring is installed at one end of the workpiece; the positioning ring is fixedly connected to the workpiece; a plurality of positioning grooves uniformly distributed along the circumference are arranged on the outer circumferential surface of the positioning ring; a guide sleeve is arranged on the bottom plate corresponding to the positioning groove; a slider that can slide up and down is arranged in the guide sleeve; the upper end of the slider protrudes from the guide sleeve; a positioning block for cooperating with the positioning groove is arranged on the upper end surface of the slider; the positioning block is a structure that enters or exits the positioning groove as the slider slides up and down; a marking mechanism is arranged at the other end of the workpiece; the marking mechanism comprises a support block arranged perpendicular to the bottom plate; the support block is arranged vertically and fixed on the base; a marking plate located above the workpiece is arranged at the top of the support block; a marking knife is arranged on the marking plate; the marking knife is located directly above the part of the workpiece to be marked.

[0006] The scoring plate is provided with a guide groove for placing the scoring knife, and the bottom of the guide groove coincides with the center of the V-shaped block A or B.

[0007] A spring for driving the slider to move up and down is arranged in the guide sleeve; a key slot and a positioning block installation slot are arranged on the slider, and a sliding module is formed by the key, the spring and the positioning sleeve.

[0008] The positioning ring is in the shape of a disc, and a diamond pin is installed on the inner end face of the positioning ring. The angle between the multiple positioning grooves and the diamond pin corresponds to the angle between the pin hole on the workpiece and the upper dead point of each cylinder intake. The diamond pin is installed on the positioning ring and serves as the angular reference of the positioning ring.

[0009] The utility model provides a device for marking the circumferential surface of shaft parts. By adopting the above technical scheme, the device makes marking the circumferential surface of shaft parts simple to operate, does not require the cooperation of numerical control equipment, has low requirements on operators, and has the characteristics of simple and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] Figure 2 It is a structural diagram of the positioning mechanism

[0012] Figure 3 It is a schematic diagram of the structure of the workpiece

[0013] Figure 4 This is a schematic diagram of the positioning ring structure

[0014] In the figure: 1-base, 2-V-shaped block A, 3-V-shaped block B, 4-guide sleeve, 5-slider, 6-key, 7-positioning block, 8-spring, 9-plug, 10-positioning ring, 11-diamond pin, 12-support block, 13-marking plate, 14-marking knife, 15-lifting ear, 16-pin, 17-screw, 18-workpiece, 19-positioning groove, 20-guide groove, 21-small outer circle of workpiece, 22, pin hole. DETAILED DESCRIPTION

[0015] The following is combined with Figure 1-4 The implementation process, structural features and functions of the utility model are further explained with specific implementation methods.

[0016] A device for marking the circumferential surface of a shaft-type part, the device comprising a V-shaped block A2 and a V-shaped block B3 for supporting a workpiece 18; the V-shaped block A2 and the V-shaped block B3 are placed on the same base 1; the two ends of the workpiece are supported on the V-shaped block A and the V-shaped block B; a positioning ring 10 is installed at one end of the workpiece 18; the positioning ring 10 is fixedly connected to the workpiece 18; a plurality of positioning grooves 19 are uniformly distributed along the circumference on the outer circumferential surface of the positioning ring 10; a guide sleeve 4 is arranged on the bottom plate corresponding to the positioning grooves 19; a sliding block 5 which can slide up and down is installed in the guide sleeve 4; the upper end of the sliding block 5 protrudes from the guide sleeve 4; The upper end surface of the slider 5 is provided with a positioning block 7 for cooperating with the positioning groove 19; the positioning block 7 is a structure that slides up and down with the slider into or out of the positioning groove; the other end of the workpiece 18 is provided with a scoring mechanism; the scoring mechanism has a support 12 arranged perpendicular to the bottom plate; the support block 12 is arranged vertically and fixed on the base 3; the top of the support block 12 is provided with a scoring plate 13 located above the workpiece; a scoring knife 14 is installed on the scoring plate; the scoring knife 14 is located directly above the part of the workpiece to be scored; the scoring plate is provided with a guide groove 20 for placing the scoring knife, and the bottom of the guide groove coincides with the center of the same V-shaped block B.

[0017] A spring for driving the slider to move up and down is arranged in the guide sleeve; a key slot and a positioning block installation slot are arranged on the slider, and a sliding module is formed by the key, the spring and the positioning sleeve.

[0018] The positioning ring is in the shape of a disc, and a diamond pin is installed on the inner end face of the positioning ring. The angle between the multiple positioning grooves and the diamond pin corresponds to the angle between the pin hole on the workpiece and the upper dead point of each cylinder intake. The diamond pin is installed on the positioning ring and serves as the angular reference of the positioning ring.

[0019] The specific steps of this utility model are as follows:

[0020] Step 1: Install the positioning ring 10 on the workpiece 18. During installation, the inner hole of the positioning ring 10 passes through the small outer circle 21 of the workpiece, and the diamond pin 11 enters the pin hole 22 of the workpiece and then tightens the fixing screw 17;

[0021] Step 2: Place the workpiece 18 on the marking device. When placing the workpiece 18, the journals at both ends are supported on the V-shaped block A and the V-shaped block B respectively. At the same time, it should be noted that the marking part of the workpiece extends under the marking plate 13;

[0022] Step 3: Rotate the workpiece 18 to make the positioning block 7 slide into the positioning groove 19 of the positioning ring 10;

[0023] Step 4: The operator holds the scribing knife 14 and places the scribing knife 14 in the guide groove 20 of the scribing plate 13. The scribing knife 14 is scribed after the blade of the scribing knife 14 contacts the workpiece 18.

[0024] Step 5: After the first identification line is marked, press the slider 5 to push the positioning block 7 out of the positioning groove 19, and at the same time rotate the workpiece 18 and release the slider 5, rotate the workpiece until the positioning block 7 falls into the positioning groove 19 again, and then repeat step 4 to mark the second identification line;

[0025] Step 6: Repeat steps 4 and 5 until all 6 marking lines are processed, and then remove the workpiece from the engraving device.

Claims

1. A device for marking the circumferential surface of a shaft part, characterized in that: The circumferential surface marking device of shaft parts comprises a V-shaped block A and a V-shaped block B for supporting a workpiece; the V-shaped block A and the V-shaped block B are placed on the same base; the two ends of the workpiece are supported on the V-shaped block A and the V-shaped block B; a positioning ring is installed at one end of the workpiece; the positioning ring is fixedly connected to the workpiece; a plurality of positioning grooves evenly distributed along the circumference are arranged on the outer circumferential surface of the positioning ring; a guide sleeve is arranged on the bottom plate corresponding to the positioning groove; a slider that can slide up and down is arranged in the guide sleeve; the upper end of the slider protrudes from the guide sleeve; a positioning block for cooperating with the positioning groove is arranged on the upper end surface of the slider; the positioning block is a structure that enters or exits the positioning groove as the slider slides up and down; a marking mechanism is arranged at the other end of the workpiece; the marking mechanism comprises a support block arranged perpendicular to the bottom plate; the support block is arranged vertically and fixed on the base; a marking plate located above the workpiece is arranged at the top of the support block; a marking knife is installed on the marking plate; the marking knife is located directly above the part of the workpiece to be marked.

2. A device for marking the circumferential surface of a shaft part according to claim 1, characterized in that: The scoring plate is provided with a guide groove for placing the scoring knife, and the bottom of the guide groove coincides with the center of the V-shaped block A or B.

3. A device for marking the circumferential surface of a shaft part according to claim 1, characterized in that: A spring for driving the slider to move up and down is arranged in the guide sleeve; a key slot and a positioning block installation slot are arranged on the slider, and a sliding module is formed by the key, the spring and the positioning sleeve.

4. A device for marking the circumferential surface of a shaft part according to claim 1, characterized in that: The positioning ring is in the shape of a disc, and a diamond pin is installed on the inner end face of the positioning ring. The angle between the multiple positioning grooves and the diamond pin corresponds to the angle between the pin hole on the workpiece and the upper dead point of each cylinder intake. The diamond pin is installed on the positioning ring and serves as the angular reference of the positioning ring.

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