Clamping fixture for camshaft torque test
By designing a clamping fixture for camshaft torque testing, and utilizing the combination of the fixture body, connecting parts, and fixing parts, the problems of complexity and high cost in existing camshaft torque force testing are solved, and a simple cam plate fixing and torque force testing are realized.
Patent Information
- Application Number
- CN202422777801.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-11-14
AI Technical Summary
Existing technologies cannot quickly and easily detect torque forces at various positions of the combined camshaft, and existing fixtures are complex to operate and costly, especially the cam plates are difficult to fix.
A clamping fixture for camshaft torque testing was designed, including a fixture body, a connector, a clamping sleeve, and a fixing component. The camshaft is easily fixed and its torque force is detected by clamping it with a positioning groove that matches the shape of the camshaft and a bolt.
A clamping fixture is provided to facilitate testing the engagement force between the camshaft body and the cam plate, which simplifies the operation process, reduces costs, and improves testing efficiency.
Smart Images
Figure CN223500768U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of fixtures, and more specifically, to a clamping fixture for camshaft torque testing. Background Technology
[0002] A composite camshaft includes a camshaft and cam plates mounted on the outside of the camshaft. The camshaft of the composite camshaft requires torque force testing, as does the torque force between the camshaft and the cam plates. In particular, the torque force testing between the camshaft and the cam plates is a crucial indicator of the composite camshaft's product quality. However, torque force testing is cumbersome, and current technology cannot achieve rapid torque force testing at various positions on the composite camshaft. Furthermore, due to the irregular shape of the cam plates, special fixtures are required for fixation during processing, and existing fixtures are complex and costly. Utility Model Content
[0003] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.
[0004] To address the technical problem of complex fixture operation mentioned in the background section, some embodiments of this application provide a clamping fixture for camshaft torque testing, used to clamp cam plates on a camshaft, including:
[0005] The clamp body is symmetrically arranged at both ends of the camshaft body and is used to clamp the cam plates;
[0006] The fixture body includes a connector, a clamping sleeve disposed on the connector, and a fixing member for clamping the clamping sleeve; a positioning groove for clamping the cam plate is provided inside the clamping sleeve, and the outline of the positioning groove is similar to the shape of the cam plate.
[0007] The clamping sleeve includes a first clamping piece and a second clamping piece. The first clamping piece and the second clamping piece are connected at one end and there is a gap between the other ends of the first clamping piece and the second clamping piece. The positioning groove is located between the first clamping piece and the second clamping piece and communicates with the gap. The first clamping piece and the second clamping piece are clamped together by a fixing member.
[0008] This application places the cam plates on both ends of the camshaft body into the clamping sleeve. The positioning groove on the clamping sleeve positions the cam plates, and the clamping sleeve is installed on the connecting piece. Then, the clamping sleeve is clamped by the fastener passing through the connecting piece, thereby clamping and fixing the cam plates. After connecting both ends of the fixture to the torque testing machine, the testing machine applies torque to twist the cam plates and tests the bonding force between the camshaft body and the cam plates.
[0009] Furthermore, a first half-groove is formed on the first clamping piece, and a second half-groove is formed on the second clamping piece. The first half-groove and the second half-groove are connected to form a positioning groove.
[0010] Furthermore, the clamping sleeve is provided with several limiting grooves for inserting the fixing components.
[0011] Furthermore, the connector has several through holes for inserting fasteners.
[0012] Furthermore, the fastener is a bolt; the bolt passes through the connector and abuts against the side wall of the clamping sleeve with a gap.
[0013] Furthermore, the diameter of the limiting groove is larger than the outer diameter of the bolt body.
[0014] Furthermore, there are two limiting grooves symmetrical to the clamping sleeve, and two bolts are provided corresponding to the limiting grooves.
[0015] Furthermore, the connecting element includes a flange, a transition flange connected to the flange, and a cavity provided on the transition flange for mounting the clamping sleeve.
[0016] Furthermore, the transition flange and the flange are connected by bolts.
[0017] The beneficial effect of this application is that it provides a clamping fixture for camshaft torque testing, which facilitates the testing of the bonding force between the camshaft body and the cam plate. Attached Figure Description
[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.
[0019] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.
[0020] In the attached diagram:
[0021] Figure 1 This is an overall schematic diagram based on an embodiment of this application;
[0022] Figure 2 yes Figure 1 Enlarged view of part A;
[0023] Figure 3 This is an exploded view of a portion of an embodiment.
[0024] Figure label:
[0025] 1. Camshaft; 2. Cam plate; 3. Connector; 4. Clamping sleeve; 5. Fixing component; 6. Positioning groove; 7. First clamping plate; 8. Second clamping plate; 9. Clearance; 10. First half-groove; 11. Second half-groove; 12. Limiting groove; 13. Through hole; 14. Flange; 15. Transition flange. Detailed Implementation
[0026] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.
[0027] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.
[0028] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.
[0029] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".
[0030] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.
[0031] Reference Figure 1-3A clamping fixture for camshaft torque testing is used to clamp cam plates 2 on a camshaft 1. It includes two fixture bodies symmetrically positioned at both ends of the camshaft 1 body for clamping the cam plates 2. Specifically, the fixture body includes a connecting member 3, a clamping sleeve 4, and a fixing member 5. The clamping sleeve 4 is mounted on the connecting member 3, and the fixing member 5 passes through the connecting member 3 and connects to the clamping sleeve 4; the clamping sleeve 4 is clamped by the fixing member 5. A positioning groove 6 is provided inside the clamping sleeve 4 for clamping the cam plate 2, and the contour of the positioning groove 6 is similar to the shape of the cam plate 2. The cam plates 2 on both ends of the camshaft 1 are placed in the clamping sleeve 4. The positioning groove 6 on the clamping sleeve 4 positions the cam plates 2. The clamping sleeve 4 is installed on the connecting piece 3. Then, the clamping sleeve 4 is clamped by the fixing piece 5 passing through the connecting piece 3, thereby clamping and fixing the cam plates 2. Then, after connecting both ends of the fixture to the torque testing machine, the testing machine applies torque to twist the cam plates 2 and tests the bonding force between the camshaft 1 body and the cam plates 2.
[0032] The clamping sleeve 4 includes a first clamping piece 7 and a second clamping piece 8; the first clamping piece 7 and the second clamping piece 8 are connected at one end, and there is a gap 9 between the other ends of the first clamping piece 7 and the second clamping piece 8. The positioning groove 6 is located between the first clamping piece 7 and the second clamping piece 8, and the positioning groove 6 communicates with the gap 9. The first clamping piece 7 and the second clamping piece 8 are clamped together by the fixing member 5. The first clamping piece 7 has a first half-groove 10, and the second clamping piece 8 has a second half-groove 11. The first half-groove 10 and the second half-groove 11 are connected to form the positioning groove 6.
[0033] The fastener 5 is a bolt, which passes through the connector 3 and abuts against the side wall of the clamping sleeve 4 with a gap 9. The diameter of the limiting groove 12 is larger than the outer diameter of the bolt body. There are two limiting grooves 12, which are symmetrical on the clamping sleeve 4. Two bolts are provided corresponding to the limiting grooves 12.
[0034] The clamping sleeve 4 has several limiting grooves 12 for inserting the fixing parts 5, and the connecting parts 3 has several through holes 13 for inserting the fixing parts 5.
[0035] The connecting component 3 includes a flange 14 and a transition flange 15; the transition flange 15 is bolted to the flange 14, and a cavity for installing the clamping sleeve 4 is formed on the transition flange 15.
[0036] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.
Claims
1. A clamping fixture for camshaft torque testing, characterized in that: Cam plates for clamping the camshaft include: The clamp body is symmetrically arranged at both ends of the camshaft body and is used to clamp the cam plates; The clamp body includes a connector, a clamping sleeve disposed on the connector, and a fixing member for clamping the clamping sleeve; the clamping sleeve has a positioning groove for clamping the cam plate, and the outline of the positioning groove is similar to the shape of the cam plate. The clamping sleeve includes a first clamping piece and a second clamping piece. The first clamping piece and the second clamping piece are connected at one end and there is a gap between the other ends of the first clamping piece and the second clamping piece. The positioning groove is located between the first clamping piece and the second clamping piece and communicates with the gap. The first clamping piece and the second clamping piece are clamped together by a fixing member.
2. The clamping fixture for camshaft torque testing according to claim 1, characterized in that: The first clamping piece has a first half-groove, and the second clamping piece has a second half-groove. The first half-groove and the second half-groove are connected to form the positioning groove.
3. The clamping fixture for camshaft torque testing according to claim 1, characterized in that: The clamping sleeve has several limiting grooves for the insertion of the fixing component.
4. The clamping fixture for camshaft torque testing according to claim 1, characterized in that: The connector has several through holes for the fastener to be inserted.
5. The clamping fixture for camshaft torque testing according to claim 3, characterized in that: The fastener is a bolt, which passes through the connector and abuts against the side wall of the clamping sleeve with a gap.
6. The clamping fixture for camshaft torque testing according to claim 5, characterized in that: The diameter of the limiting groove is larger than the outer diameter of the bolt body.
7. The clamping fixture for camshaft torque testing according to claim 6, characterized in that: There are two limiting grooves symmetrical to the clamping sleeve, and two bolts are provided corresponding to the limiting grooves.
8. The clamping fixture for camshaft torque testing according to claim 1, characterized in that: The connector includes a flange and a transition flange connected to the flange, with a cavity provided on the transition flange for mounting the clamping sleeve.
9. The clamping fixture for camshaft torque testing according to claim 8, characterized in that: The transition flange and the flange are connected by bolts.