Clamp for quickly clamping engine
By designing fixtures that adapt to different placement conditions, the problem of engine block displacement during measurement was solved, achieving stable clamping and comprehensive measurement of the engine block, and improving the integrity and accuracy of the measurement.
Patent Information
- Application Number
- CN202520449474.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Existing engine block fixtures cannot adapt to different placement conditions, which can easily lead to displacement during measurement, affecting the integrity and accuracy of the measurement results.
A clamp was designed, comprising a base, a first clamping part, and a second clamping part. The first clamping part is flat, and the second clamping part is concave. Through the cooperation of the moving structure and the limiting structure, it can adapt to different placement states of the engine block and achieve stable clamping.
It achieves stable clamping of engine blocks placed laterally and vertically, ensuring comprehensive measurement of all critical dimensions and improving the integrity and accuracy of measurements.
Smart Images
Figure CN223811838U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to engine clamp technical field, concretely relates to a clamp for quick clamping engine. BACKGROUND
[0002] Engine cylinder block is an important part in engine, engine cylinder block needs to detect multiple sizes in the processing and after processing to ensure that engine cylinder block meets production standard, first, engine cylinder block is placed horizontally and is clamped through clamp, the top, bottom and two side faces of its cylinder block are more easily exposed, at this time, the length, width, flatness of cylinder block surface, flatness of cylinder block and cylinder cover combination surface and other sizes of cylinder block can be conveniently measured, since the diameter, roundness, cylindricity of cylinder hole and center distance of crankshaft hole and other sizes are difficult to accurately measure when placed horizontally due to angle and field of vision limitation, therefore, after horizontal placement measurement, engine cylinder block needs to be placed vertically and clamped through clamp, at this time, the internal structure (such as cylinder hole, crankshaft hole, etc.) of cylinder block is more convenient to measure, through two kinds of placement modes, almost all key sizes of cylinder block can be covered, ensuring the comprehensiveness of measurement.
[0003] When engine cylinder block is in different placement states, the structure of its two sides of bottom is different, when engine cylinder block is placed horizontally (namely, the lower surface of engine cylinder block contacts with the upper side of base), the lower part of its two sides is flat, when engine cylinder block is placed vertically (namely, the bottom of crankcase contacts with the upper side of base), the lower part of its two sides is arc-shaped convex, the existing engine cylinder block clamp is single in shape, can only stably clamp engine cylinder block in one placement state, when engine cylinder block switches to another placement state, the clamp cannot match with it, cannot stably clamp it, thereby leading to displacement of engine cylinder block in the process of measurement, affecting the measurement result. UTILITY MODEL CONTENTS
[0004] The utility model solves the technical problem in that, in view of the above-mentioned defects, provide a kind of clamp for quick clamping engine, can be clamped to engine cylinder block in different placement states, good adaptability, ensure the integrity of measurement.
[0005] The technical scheme adopted by the utility model to solve its technical problems is: a clamp for quick clamping engine, including base, two first clamping parts and movement structure for driving two first clamping parts to move towards or away from each other are oppositely arranged on the base, the front side of first clamping part is flat, second clamping part is arranged on the two first clamping parts, the front side of second clamping part is concave arc-shaped, the front side of second clamping part can extend from the front side of first clamping part or retreat, and the second clamping part after movement is positioned by limiting structure.
[0006] The working principle of the scheme is that when the size of the engine cylinder block needs to be measured, the engine cylinder block is first placed horizontally between the two first clamping parts on the base (that is, the lower surface of the engine cylinder block is in contact with the upper side of the base), the two first clamping parts are driven to move closer to each other by the moving structure until the front sides of the two first clamping parts abut against the two sides of the lower surface of the engine cylinder block, so as to fix the engine cylinder block, and the length, width, flatness of the cylinder block surface, flatness of the cylinder block and cylinder cover combination surface and other sizes of the cylinder block are measured; after the measurement is completed, the two first clamping parts are driven to move away from each other by the moving structure, the engine cylinder block is no longer clamped, the engine cylinder block is placed vertically (that is, the bottom of the crankcase is in contact with the upper side of the base), then the second clamping part is moved to extend from the front side of the first clamping part, the two first clamping parts are driven to move closer to each other by the moving structure until the front sides of the two second clamping parts abut against the irregular protrusions on the two sides of the bottom of the crankcase, so as to fix the engine cylinder block, and the diameter, roundness, cylindricity of the cylinder hole, and center distance of the crankshaft hole and other sizes are measured.
[0007] Compared with the prior art, the scheme has the beneficial effects that when the horizontally placed engine cylinder block needs to be clamped, the second clamping part is moved to a position not exceeding the front side of the first clamping part, the engine cylinder block is clamped by the two first clamping parts, when the vertically placed engine cylinder block needs to be clamped, the second clamping part is moved to the state of extending from the front side of the first clamping part, the engine cylinder block is clamped by the two second clamping parts, since the structures on the two sides of the engine cylinder block are different when it is in different placement states, compared with the current clamping of the engine cylinder block in different placement states by only one set of same clamping structure, the first clamping part and the second clamping part cooperate to clamp the engine cylinder block in different placement states in cooperation with the structures on the two sides thereof, the stability of clamping is ensured, thereby facilitating the measurement of all key sizes on the engine cylinder block, and ensuring the comprehensiveness and accuracy of the measurement.
[0008] As a preferred embodiment of the utility model, the upper side of the base is provided with a groove along the length direction thereof, the moving structure comprises a bidirectional screw rod arranged in the groove and capable of rotating relative to the base, the bidirectional screw rod extends from one side of the groove to the outside of the base, the first clamping part comprises a moving block in sliding cooperation with the groove and in threaded connection with the bidirectional screw rod, and the two moving blocks are located on the threads of different rotation directions of the bidirectional screw rod, respectively.
[0009] The scheme has the beneficial effects that the bidirectional screw rod extending from one side of the groove to the outside of the base is rotated to drive the two moving blocks to move closer to or away from each other, the operation is simple, and the bidirectional screw rod has a self-locking function, so that no additional locking structure needs to be arranged.
[0010] As the preferred embodiment of the utility model, two moving blocks are respectively provided with first clamping blocks on one side close to each other, the second clamping part comprises a second clamping block arranged in a concave arc shape, the second clamping block and the limiting structure are both located on the moving block, and a through hole for the second clamping part to pass through is formed in the middle of the first clamping block.
[0011] The first clamping block is arranged on the front side of the moving block, leaving space for the installation of the second clamping block and the limiting structure.
[0012] As the preferred embodiment of the utility model, along the length direction of the base, first connecting holes and second connecting holes are arranged on the upper side of the moving block at intervals, the limiting structure comprises a connecting block arranged on the rear side of the second clamping block, a third connecting hole is formed in the connecting block, a limiting block is arranged on the connecting block, a limiting column is arranged on the lower side of the limiting block and can move up and down through the third connecting hole, and a tension spring is fixedly connected between the limiting block and the connecting block.
[0013] When the engine cylinder is placed vertically, the second clamping block is stretched out of the first clamping block, and the second clamping block arranged in a concave shape is matched with the protrusions on the two sides of the engine cylinder when the engine cylinder is placed vertically, so that the engine cylinder is clamped.
[0014] As the preferred embodiment of the utility model, when the third connecting hole is aligned with the first connecting hole and is limited by the limiting structure, the second clamping block is retracted into the first clamping block, and the front side of the second clamping block is flush with the front side of the first clamping block.
[0015] The front side of the second clamping block is flush with the front side of the first clamping block when the engine cylinder is placed horizontally, increasing the area of contact with the two sides of the engine cylinder, so that the clamping of the engine cylinder is more stable.
[0016] As the preferred embodiment of the utility model, the upper side of the moving block is equipped with a sliding groove, the lower side of the second clamping block is equipped with a connecting strip, one end of the connecting strip away from the second clamping block is equipped with a sliding block for sliding cooperation with the sliding groove, when the side of the sliding block away from the second clamping block abuts against the inner wall of the sliding groove away from the second clamping block, the third connecting hole is aligned with the first connecting hole, when the side of the sliding block close to the second clamping block abuts against the inner wall of the sliding groove close to the second clamping block, the third connecting hole is aligned with the second connecting hole.
[0017] The beneficial effects of the present application are that the sliding block and the sliding groove cooperate to guide the movement of the second clamping block, and can guide the alignment of the third connecting hole with the first connecting hole and the second connecting hole, facilitating the locking of the moved second clamping block. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 The figure is a structure schematic view when the engine cylinder body is placed horizontally in the utility model.
[0019] Figure 2 The figure is a structure schematic view when the engine cylinder body is placed vertically in the utility model.
[0020] Figure 3 The figure is a structure schematic view of the first clamping part and the second clamping part in the utility model. Figure 1
[0021] The figure is a structure schematic view of the first clamping part and the second clamping part in the utility model. Figure 4 Figure 3 The figure is a local enlarged view of A in the utility model.
[0022] Figure 5 The figure is a local enlarged view of B in the utility model. Figure 2 The figure is a structure schematic view of the first clamping part and the second clamping part in the utility model.
[0023] Figure 6 The figure is a local enlarged view of B in the utility model. Figure 5 DETAILED DESCRIPTION
[0024] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described below are only used to explain and describe the utility model, and will not limit the protection scope of the utility model.
[0025] The terms "first", "second" and the like in the specification, claims, embodiments of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence.
[0026] The utility model is further described in detail below through the preferred specific embodiments:
[0027] The reference numerals in the accompanying drawings include: base 1, groove 101, moving block 2, slide 201, first connecting hole 202, second connecting hole 203, first clamping block 3, through hole 301, second clamping block 4, connecting block 5, connecting strip 6, slider 7, limiting block 8, engine cylinder 9, cylinder bore 901, crankcase 902, double-acting lead screw 10, handle 11, and tension spring 12.
[0028] As attached Figure 3 As shown: The clamp for quickly clamping an engine in this embodiment includes a base 1. A groove 101 is formed on the upper side of the base 1 along its length. Two first clamping parts and a moving structure for driving the two first clamping parts to move towards or away from each other are arranged opposite to each other on the base 1. The moving structure includes a bidirectional lead screw 10 disposed in the groove 101 and capable of rotating relative to the base 1. The bidirectional lead screw 10 extends from one side of the groove 101 to the outside of the base 1, and a handle 11 is provided at one end of the bidirectional lead screw 10 extending to the outside of the base 1 to facilitate the rotation of the bidirectional lead screw 10.
[0029] As attached Figure 1 Appendix Figure 3 and attached Figure 4 As shown: the front side of the first clamping part is flat, and each of the two first clamping parts is provided with a second clamping part. Further, the first clamping part includes a movable block 2 that slides with the groove 101 and is threadedly connected to the bidirectional lead screw 10. The two movable blocks 2 are respectively located on the thread lines of the bidirectional lead screw 10 with different helical directions. Along the length direction of the base 1, the upper side of the movable block 2 is provided with a first connecting hole 202 and a second connecting hole 203 at intervals. The upper side of the movable block 2 is also provided with a sliding groove 201. The sliding groove 201 is located on one side of the first connecting hole 202 and the second connecting hole 203. In this embodiment, the sliding groove 201 is a T-shaped sliding groove 201. The upper part of the side of the two movable blocks 2 that are close to each other is provided with a first clamping block 3. The middle of the first clamping block 3 has a through hole 301 for the second clamping part to pass through.
[0030] As attached Figure 2 Appendix Figure 5 and attached Figure 6 As shown: The front side of the second clamping part is concave arc-shaped. The front side of the second clamping part can extend or retract from the front side of the first clamping part, and the moving second clamping part is limited by a limiting structure. Further, the second clamping part includes a second clamping block 4 with a concave arc shape. The second clamping block 4 and the limiting structure are both located on the moving block 2. A connecting strip 6 is provided on the lower side of the second clamping block 4. The end of the connecting strip 6 away from the second clamping block 4 is provided with a slider 7 for sliding cooperation with the slide groove 201. In this embodiment, the slider 7 is T-shaped. The cooperation between the slider 7 and the slide groove 201 limits the second clamping block 4 in the vertical direction.
[0031] As shown in the accompanying drawings Figure 4 and the accompanying drawings Figure 6 The limiting structure includes a connecting block 5 arranged at the rear side of the second clamping block 4, a third connecting hole is formed in the connecting block 5, a limiting block 8 is arranged on the connecting block 5, a limiting column is arranged at the lower side of the limiting block 8 and can move up and down through the third connecting hole, not shown in the figure, a tension spring 12 is fixedly connected between the limiting block 8 and the connecting block 5, when the side of the sliding block 7 away from the second clamping block 4 abuts against the inner wall of the sliding groove 201 away from the second clamping block 4, the third connecting hole is aligned with the first connecting hole 202, the limiting column is clamped into the first connecting hole 202, and the second clamping block is retracted into the first clamping block, at this time the second clamping block 4 is retracted into the first clamping block 3 and the front side of the second clamping block 4 is flush with the front side of the first clamping block 3; when the side of the sliding block 7 close to the second clamping block 4 abuts against the inner wall of the sliding groove 201 close to the second clamping block 4, the third connecting hole is aligned with the second connecting hole 203, the limiting column is clamped into the second connecting hole 203, and the second clamping block 4 is extended out of the first clamping block 3.
[0032] Specific clamping process:
[0033] When the size of the engine cylinder block 9 needs to be measured, first place the engine cylinder block 9 horizontally between the two first clamping blocks 3 on the base 1, i.e. the lower surface of the engine cylinder block 9 is in contact with the upper side of the base 1, as shown in the accompanying drawings Figure 1 , rotate the bidirectional screw rod 10 to drive the two moving blocks 2 to move close to each other until the front sides of the two first clamping blocks 3 abut against the two sides of the lower surface of the engine cylinder block 9, thereby fixing the engine cylinder block 9, and measuring the length, width, flatness of the cylinder block surface, flatness of the cylinder block and cylinder cover joint surface and other sizes of the cylinder block, in this process, the front side of the second clamping block 4 is flush with the front side of the first clamping block 3, and the second clamping block 4 is fixed by the limiting column passing through the third connecting hole and the first connecting hole 202, as shown in the accompanying drawings Figure 4 .
[0034] After the transverse size measurement is completed, rotate the bidirectional screw rod 10 in the opposite direction to drive the two moving blocks 2 to move away from each other, i.e. the front sides of the two first clamping blocks 3 no longer abut against the engine cylinder block 9, place the engine cylinder block 9 vertically, i.e. the bottom of the crankcase 902 is in contact with the upper side of the base 1, as shown in the accompanying drawings Figure 2 , lift the limiting block 8 upward to make the limiting column exit from the first connecting hole 202, move the second clamping block 4 until the front side of the sliding block 7 abuts against the front inner wall of the sliding groove 201, at this time the second clamping block 4 is extended out of the front side of the first clamping block 3, then release the hand, and the second clamping block 4 is fixed by the limiting column passing through the third connecting hole and the second connecting hole 203, as shown in the accompanying drawings Figure 6As shown, after the positions of the second clamping blocks 4 are adjusted, the two moving blocks 2 are driven to move close to each other by rotating the bidirectional screw rod 10, until the front sides of the two second clamping blocks 4 abut against the irregular protrusions on both sides of the bottom of the crankcase 902, so that the engine cylinder block 9 is clamped, and the diameter, roundness, cylindricity, center distance of the crankshaft hole and other sizes of the cylinder hole 901 are measured.
[0035] The preferred embodiments of the present application are described in detail above in combination with the drawings, and typical known structures and known common knowledge techniques are not described in detail herein. Those skilled in the art can improve and implement the technical solutions of the present application based on the disclosure of the embodiments, and some typical known structures, known methods or known common knowledge techniques should not be an obstacle for those skilled in the art to implement the present application.
[0036] The scope of protection of the present application should be subject to the content of its claims, and the content recorded in the utility model content, detailed description and drawings of the specification is used to explain the claims.
[0037] Within the technical concept of the present application, several modifications can also be made to the specific embodiments of the present application, and the specific embodiments after the modifications should also be considered within the protection scope of the present application.
Claims
1. A fixture for rapid clamping of an engine comprising a base, characterized in that: Two first clamping parts are oppositely arranged on the base, and a moving structure is arranged on the base and used for driving the two first clamping parts to move towards or away from each other.
2. A fixture for quick clamping of an engine as claimed in claim 1, wherein: A groove is formed on the upper side of the base along the length direction of the base, the moving structure comprises a bidirectional screw rod arranged in the groove and capable of rotating relative to the base, the bidirectional screw rod extends from one side of the groove to outside of the base, and the first clamping part comprises a moving block which is in sliding fit with the groove and is in screw connection with the bidirectional screw rod, and the two moving blocks are located on threads of different rotation directions of the bidirectional screw rod.
3. A clamp for quick clamping of an engine according to claim 2, characterized in that: First clamping blocks are arranged on the upper sides of the two moving blocks which are close to each other, the second clamping part comprises a second clamping block which is arranged in an inner recessed arc shape, the second clamping block and the limiting structure are arranged on the moving block, and a through hole is formed in the middle of the first clamping block and used for the second clamping part to pass through.
4. A clamp for quick clamping of an engine according to claim 3, characterized in that: First and second connecting holes are arranged on the upper side of the moving block along the length direction of the base, the limiting structure comprises a connecting block arranged on the rear side of the second clamping block, a third connecting hole is formed in the connecting block, a limiting block is arranged on the connecting block, a limiting column is arranged on the lower side of the limiting block and capable of moving up and down through the third connecting hole, and a tension spring is fixedly connected between the limiting block and the connecting block, when the third connecting hole is aligned with the first connecting hole, the limiting column is clamped into the first connecting hole, the second clamping block is retracted into the first clamping block, and when the third connecting hole is aligned with the second connecting hole, the limiting column is clamped into the second connecting hole, and the second clamping block is extended out of the first clamping block.
5. A clamp for quick clamping an engine according to claim 4, characterized in that: When the third connecting hole is aligned with the first connecting hole and is limited by the limiting structure, the second clamping block is retracted into the first clamping block, and the front side of the second clamping block is flush with the front side of the first clamping block.
6. A clamp for quick clamping an engine according to claim 5, characterized in that: A sliding groove is arranged on the upper side of the moving block, a connecting strip is arranged on the lower side of the second clamping block, a sliding block is arranged on the end of the connecting strip away from the second clamping block and used for sliding fit with the sliding groove, when the side of the sliding block away from the second clamping block abuts against the inner wall of the sliding groove away from the second clamping block, the third connecting hole is aligned with the first connecting hole, and when the side of the sliding block close to the second clamping block abuts against the inner wall of the sliding groove close to the second clamping block, the third connecting hole is aligned with the second connecting hole.