Engine cylinder cover clamp

Abstract

The utility model provides an engine cylinder cover clamp which is used for clamping blind rivets on an engine cylinder cover, a plurality of blind rivets are installed on the engine cylinder cover, and the engine cylinder cover clamp comprises a base used for being connected with the driving end of an external driving device; the positioning component comprises two positioning parts which are arranged on the base in a spaced mode in the first preset direction; the two positioning parts are respectively arranged corresponding to two of the plurality of blind rivets, and each positioning part is arranged outside the corresponding blind rivet in a sleeving manner; the clamping component comprises two clamping parts which are arranged on the base in a spaced mode in the first preset direction, the two clamping parts correspond to two of the blind rivets respectively, and the two clamping parts can be arranged close to or away from each other in the first preset direction relative to the base; each clamping part is used for abutting against the corresponding blind rivet or being separated from the corresponding blind rivet, so that the problem that in the prior art, when an engine cylinder cover clamp is used for some detection environments, the detection effect is affected due to the fact that part of the surface is shielded is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile workpiece processing, and in particular to an engine cylinder head fixture. Background Art

[0002] The cylinder head refers to the component covering the top of the cylinder in an internal combustion engine, which is responsible for sealing the cylinder and installing components such as the valve mechanism. The cylinder head and the engine cylinder block form a combustion chamber for the normal operation of the engine, playing a crucial role in the performance and stability of the engine. The engine cylinder head fixture is a tool for fixing and positioning the engine cylinder head. During the manufacturing and maintenance processes of the engine, the cylinder head fixture is required to ensure the correct installation and positioning of the cylinder head.

[0003] Currently, the engine cylinder head fixtures adopted in the market usually directly clamp and fix the cylinder head of the engine. However, this method has deficiencies in some detection environments. The way the engine cylinder head fixture clamps the cylinder head may block part of the surface, preventing the detection component from normally detecting the information at certain positions of the cylinder head, resulting in inaccurate detection data, thus affecting the accuracy and reliability of the cylinder head detection, and consequently having a negative impact on the performance, stability, and safety of the engine. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide an engine cylinder head fixture to solve the problem that the existing engine cylinder head fixture may affect the detection effect due to blocking part of the surface in some detection environments.

[0005] To achieve the above purpose, according to one aspect of the utility model, there is provided an engine cylinder head fixture for clamping the pull studs on the engine cylinder head. A plurality of pull studs are installed on the engine cylinder head. The engine cylinder head fixture includes: a base for connecting to the driving end of an external driving device; a positioning component, the positioning component includes two positioning parts, and the two positioning parts are arranged on the base at intervals along a first predetermined direction; the two positioning parts are respectively correspondingly arranged with two of the plurality of pull studs, and each positioning part is sleeved outside the corresponding pull stud; a clamping component, the clamping component includes two clamping parts, and the two clamping parts are arranged on the base at intervals along the first predetermined direction, the two clamping parts are respectively correspondingly arranged with two of the plurality of pull studs, the two clamping parts are arranged on the base so as to be able to approach or separate from each other along the first predetermined direction, and each clamping part is used to press against the corresponding pull stud or separate from the corresponding pull stud; wherein, the two clamping parts are both located between the two positioning parts.

[0006] Further, the engine cylinder head fixture further includes: a plurality of pull studs including a first pull stud and a second pull stud arranged at intervals; two positioning portions including a first positioning portion and a second positioning portion, the first positioning portion is sleeved outside the first pull stud for positioning through the first pull stud, and the second positioning portion is sleeved outside the second pull stud for positioning through the second pull stud.

[0007] Further, the positioning portion includes: a first base, the first base includes a first plate body and a second plate body that are perpendicular to each other and connected, and the first plate body is connected to the base; a sleeve portion, the sleeve portion is connected to the second plate body, and the inner wall surface of the sleeve portion is correspondingly arranged with the outer peripheral surface of the corresponding pull stud for sleeving outside the corresponding pull stud.

[0008] Further, an avoidance opening is provided on one side of the sleeve portion of at least one positioning portion close to the other positioning portion.

[0009] Further, the two clamping portions include: a first clamping portion, the first clamping portion is correspondingly arranged with the first pull stud, so that when the first positioning portion is sleeved outside the first pull stud, the first clamping portion moves in a direction close to the first positioning portion to abut against the first pull stud, the first clamping portion and the first positioning portion are arranged at an interval along a second predetermined direction, and the first clamping portion is located on the side of the first positioning portion close to the base;

[0010] a second clamping portion, the second clamping portion is correspondingly arranged with the second pull stud, so that when the second positioning portion is sleeved at the position of the second pull stud, the second clamping portion moves in a direction close to the second positioning portion to abut against the second pull stud, the second clamping portion and the second positioning portion are arranged at an interval along the second predetermined direction, and the second clamping portion is located on the side of the second positioning portion close to the base; wherein, the second predetermined direction is perpendicular to the first predetermined direction.

[0011] Further, the base further includes: a mounting plate, the mounting plate is arranged on the side of the positioning member away from the pull stud for connecting with the driving end of an external driving device; two connecting plates, the two connecting plates are arranged at intervals along the first predetermined direction, one ends of the two connecting plates are both connected to the mounting plate, and the other ends of the two connecting plates are respectively connected to the two positioning members.

[0012] Further, the clamping member is located between the two connecting plates, and the clamping member further includes: a driving portion, the driving portion includes a cylinder block and two piston rods, the cylinder block is mounted on the mounting plate to fix the clamping member; two moving portions, the two moving portions are respectively connected to the two clamping portions, and the two moving portions are respectively arranged at the output ends of the two piston rods to move the two clamping portions closer to or away from each other under the drive of the piston rods.

[0013] Further, each moving part includes: a moving plate, with both ends of the moving plate respectively connected to the corresponding clamping part and the output end of the corresponding piston rod; a guiding shaft, which extends along a first predetermined direction, is arranged on the moving plate and on the side of the moving plate away from the other moving plate, so as to be inserted into or separated from the guiding groove on the corresponding connecting plate, for guiding the movement of the moving plate.

[0014] Further, the clamping part further includes: an opening part, which is arranged on the side of the moving plate away from the mounting plate, and the opening of the opening part is on the side of the corresponding clamping part away from the other clamping part. The opening part includes a semi-circular inner wall surface that matches the outer peripheral surface of the corresponding pull stud, for pressing tightly against the outer peripheral surface of the corresponding pull stud.

[0015] Further, the engine cylinder head fixture further includes: a switch bracket, with both ends of the switch bracket respectively connected to the two positioning parts; a limit switch, which is installed on the switch bracket, for contacting or separating from the cylinder head, to control the working state of the clamping component.

[0016] Applying the technical solution of the present utility model, the engine cylinder head fixture of the present utility model is used to clamp the pull studs on the engine cylinder head. There are multiple pull studs installed on the engine cylinder head. The engine cylinder head fixture includes: a base, for connecting to the driving end of an external driving device; a positioning component, the positioning component includes two positioning parts, and the two positioning parts are arranged on the base at intervals along a first predetermined direction; the two positioning parts are respectively correspondingly arranged with two of the multiple pull studs, and each positioning part is sleeved outside the corresponding pull stud; a clamping component, the clamping component includes two clamping parts, the two clamping parts are arranged on the base at intervals along a first predetermined direction, the two clamping parts are respectively correspondingly arranged with two of the multiple pull studs, the two clamping parts are arranged relative to the base to be able to approach or move away from each other along the first predetermined direction, and each clamping part is used to press tightly against the corresponding pull stud or separate from the corresponding pull stud; wherein, the two clamping parts are both located between the two positioning parts. In this way, the engine cylinder head fixture of the present utility model realizes the purpose of clamping the engine cylinder head by clamping two pull studs on the engine cylinder head through the setting of the base, the positioning component and the clamping component located on the base, effectively solving the problem that the engine cylinder head fixture in the prior art may affect the detection effect due to blocking part of the surface in some detection environments, improving the accuracy and reliability of the detection of the cylinder head, ensuring the quality of the engine, and prolonging the service life of the engine. Description of the Drawings

[0017] The specification drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0018] Figure 1The structural schematic diagram of an engine cylinder head of an embodiment of an engine cylinder head fixture applicable to the present utility model is shown;

[0019] Figure 2 The overall structural schematic diagram of an embodiment of an engine cylinder head fixture according to the present utility model in one direction is shown;

[0020] Figure 3 The overall structural schematic diagram of an embodiment of an engine cylinder head fixture according to the present utility model in another direction is shown;

[0021] Figure 4 The structural schematic diagram of a positioning component of an engine cylinder head fixture according to the present utility model sleeved outside a corresponding pull stud is shown;

[0022] Figure 5 The structural schematic diagram of a clamping component of an engine cylinder head fixture according to the present utility model pressing against a corresponding pull stud is shown.

[0023] Among them, the above-mentioned drawings include the following reference numerals:

[0024] 10. Pull stud; 20. Base; 30. Positioning component; 40. Clamping component; 50. Mounting plate; 60. Connecting plate; 70. Guide groove; 80. Switch bracket; 90. Cylinder head;

[0025] 101. First pull stud; 102. Second pull stud;

[0026] 310. Positioning portion;

[0027] 311. First positioning portion; 312. Second positioning portion; 313. First base; 314. Sleeve portion; 315. Avoidance opening;

[0028] 3131. First plate body; 3132. Second plate body;

[0029] 410. Clamping portion; 420. Driving portion; 430. Moving portion; 440. Opening portion;

[0030] 411. First clamping portion; 412. Second clamping portion;

[0031] 431. Moving plate; 432. Guide shaft;

[0032] 4311. Third plate body; 4312. Fourth plate body. Detailed implementation manners

[0033] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0034] AsFigures 1 to 5 As shown in the figure, the engine cylinder head fixture of the present utility model is used to clamp the pull studs 10 on the engine cylinder head. A plurality of pull studs 10 are installed on the engine cylinder head. The engine cylinder head fixture includes: a base 20 for connecting with the driving end of an external driving device; a positioning member 30, which includes two positioning parts 310. The two positioning parts 310 are arranged at intervals along a first predetermined direction on the base 20. The two positioning parts 310 are respectively correspondingly arranged with two of the plurality of pull studs 10, and each positioning part 310 is sleeved outside the corresponding pull stud 10; a clamping member 40, which includes two clamping parts 410. The two clamping parts 410 are arranged at intervals along the first predetermined direction on the base 20. The two clamping parts 410 are respectively correspondingly arranged with two of the plurality of pull studs 10. The two clamping parts 410 are arranged on the base 20 so as to be able to approach or separate from each other along the first predetermined direction. Each clamping part 410 is used to press against the corresponding pull stud 10 or separate from the corresponding pull stud 10. Among them, the two clamping parts 410 are both located between the two positioning parts 310.

[0035] In this way, the engine cylinder head fixture of the present utility model realizes the purpose of clamping the engine cylinder head 90 by clamping two pull studs 10 on the engine cylinder head 90 through the arrangement of the base 20, the positioning member 30 and the clamping member 40 located on the base 20. It effectively solves the problem that the engine cylinder head fixture in the prior art may affect the detection effect due to blocking part of the surface in some detection environments, improves the accuracy and reliability of the detection of the cylinder head, ensures the quality of the engine, and prolongs the service life of the engine.

[0036] Specifically, the engine cylinder head fixture of the present utility model is a fixture designed for the clamping, handling, detection and other use environments of the engine cylinder head 90 on the current automobile, and is installed at the end of the robot. It can achieve the purpose of tightly clamping the cylinder head 90 with pull studs 10. The robot can drive the cylinder head 90 to move through the engine cylinder head fixture, and is suitable for use environments such as transporting, detecting and palletizing the cylinder head 90.

[0037] As Figure 4 and Figure 5 shown, the engine cylinder head fixture further includes: the plurality of pull studs 10 include a first pull stud 101 and a second pull stud 102 arranged at intervals; the two positioning parts 310 include a first positioning part 311 and a second positioning part 312. The first positioning part 311 is sleeved outside the first pull stud 101 for positioning through the first pull stud 101, and the second positioning part 312 is sleeved outside the second pull stud 102 for positioning through the second pull stud 102.

[0038] As Figure 4As shown, the positioning portion 310 includes: a first base 313, the first base 313 having an "L"-shaped structure. The first base 313 includes a first plate body 3131 and a second plate body 3132 that are perpendicular to each other and connected. The first plate body 3131 is located at one end of the second plate body 3132 close to the base 20, and the first plate body 3131 is connected to the base 20; a sleeve portion 314, the sleeve portion 314 is connected to the second plate body 3132, and the inner wall surface of the sleeve portion 314 is correspondingly arranged with the outer peripheral surface of the corresponding pull stud 10 to be sleeved outside the corresponding pull stud 10.

[0039] Optionally, an avoidance opening 315 is provided on one side of the sleeve portion 314 of at least one positioning portion 310 close to another positioning portion 310.

[0040] In the first mode of the positioning portion 310 of this embodiment, no avoidance opening 315 is provided on the sleeve portion 314 of each positioning portion 310;

[0041] In the second mode of the positioning portion 310 of this embodiment, an avoidance opening 315 is provided on one side of the sleeve portion 314 of one positioning portion 310 close to another positioning portion 310, and no avoidance opening 315 is provided on the sleeve portion 314 of the other positioning portion 310;

[0042] In the third mode of the positioning portion 310 of this embodiment, avoidance openings 315 are provided on one side of the sleeve portion 314 of each positioning portion 310 close to another positioning portion 310.

[0043] As Figure 4 and Figure 5 shown, the two clamping portions 410 include: a first clamping portion 411, the first clamping portion 411 is correspondingly arranged with the first pull stud 101. When the first positioning portion 311 is sleeved outside the first pull stud 101, the first clamping portion 411 moves in a direction close to the first positioning portion 311 to press against the first pull stud 101. The first clamping portion 411 and the first positioning portion 311 are spaced apart in a second predetermined direction, and the first clamping portion 411 is located on the side of the first positioning portion 311 close to the base 20; a second clamping portion 412, the second clamping portion 412 is correspondingly arranged with the second pull stud 102. When the second positioning portion 312 is sleeved at the position of the second pull stud 102, the second clamping portion 412 moves in a direction close to the second positioning portion 312 to press against the second pull stud 102. The second clamping portion 412 and the second positioning portion 312 are spaced apart in a second predetermined direction, and the second clamping portion 412 is located on the side of the second positioning portion 312 close to the base 20; wherein, the second predetermined direction is perpendicular to the first predetermined direction.

[0044] Specifically, the first predetermined direction is the Figure 1 shown X direction; the second predetermined direction is the Figure 1The Y direction shown, where the X direction is perpendicular to the Y direction.

[0045] As Figure 2 shown, the base 20 further includes: a mounting plate 50 disposed on a side of the positioning member 30 away from the rivet 10 for connecting to a driving end of an external driving device; two connecting plates 60 spaced apart along a first predetermined direction, one end of each of the two connecting plates 60 being connected to the mounting plate 50 and the other end of each of the two connecting plates 60 being connected to the two positioning members 30 respectively.

[0046] Specifically, the mounting plate 50 is mainly used to connect to the end of a robot.

[0047] As Figure 2 and Figure 3 shown, the clamping member 40 is located between the two connecting plates 60. The clamping member 40 further includes: a driving portion 420 including a cylinder block and two piston rods, the cylinder block being mounted on the mounting plate 50 to fix the clamping member 40; two moving portions 430 respectively connected to the two clamping portions 410 and respectively disposed at output ends of the two piston rods to move the two clamping portions 410 closer to or away from each other under the drive of the piston rods.

[0048] Specifically, the driving portion 420 is a double-acting cylinder.

[0049] In addition, the clamping member 40 further includes an L-shaped support plate, and the cylinder block of the driving portion 420 is connected to the mounting plate 50 through the L-shaped support plate.

[0050] As Figure 2 and Figure 5 shown, each moving portion 430 includes: a moving plate 431, two ends of the moving plate 431 being respectively connected to the corresponding clamping portion 410 and the output end of the corresponding piston rod; a guide shaft 432 extending along the first predetermined direction, the guide shaft 432 being disposed on the moving plate 431 and on a side of the moving plate 431 away from the other moving plate 431 to be inserted into or separated from a guide groove 70 on the corresponding connecting plate 60 to guide the movement of the moving plate 431.

[0051] As Figure 3 shown, the moving plate 431 has a Z-shaped structure, and the moving plate 431 includes a third plate body 4311 and a fourth plate body 4312 connected to each other. The third plate body 4311 is used to connect to the output end of the corresponding piston rod, and the fourth plate body 4312 is used to connect to the corresponding clamping portion 410.

[0052] As Figure 5As shown, the clamping portion 410 further includes: an opening portion 440, which is provided on the side of the moving plate 431 away from the mounting plate 50. The opening of the opening portion 440 is located on the side of the corresponding clamping portion 410 away from the other clamping portion 410. The opening portion 440 includes a semi-circular inner wall surface that mates with the outer peripheral surface of the corresponding pull stud 10 to press tightly against the outer peripheral surface of the corresponding pull stud 10.

[0053] As Figure 2 shown, the engine cylinder head fixture further includes: a switch bracket 80, with both ends of the switch bracket 80 respectively connected to the two positioning portions 310; a limit switch, which is installed on the switch bracket 80 and is used to contact or separate from the cylinder head 90 to control the working state of the clamping member 40.

[0054] Specifically, the switch bracket 80 is used to install the limit switch and is used to detect whether the two positioning portions 310 of the positioning member 30 are sleeved in place. When the two pull studs 10 on the cylinder head 90 are sleeved in place by the two positioning portions 310 of the positioning member 30, the limit switch contacts the cylinder head 90 to transmit the corresponding signal to the driving portion 420 of the clamping member 40, so that the driving portion 420 drives the two clamping portions 410 to move.

[0055] Specifically, the switch bracket 80 includes a first support plate and a second support plate that are connected to each other. Among them, both ends of the first support plate are respectively connected to the two first bases 313, and the second support plate is installed on the first support plate and is located in the middle of the first support plate to install the limit switch.

[0056] As Figure 4 shown, first, the robot drives the engine cylinder head fixture close to the root of the pull stud 10 on the cylinder head 90 to completely sleeve the two positioning portions 310 on the bottoms of the corresponding two pull studs 10 to play a preliminary positioning role; at this time, the driving portion 420 is still in the closed state, and the two clamping portions 410 are both in their original positions and have not started to act yet. The guiding shafts 432 of each moving portion 430 have not entered the corresponding guiding groove 70, that is, the two clamping portions 410 have not contacted the corresponding two pull studs 10.

[0057] As Figure 5 shown, then, the driving portion 420 drives the two moving portions 430 to move away from each other to drive the two clamping portions 410 to approach the corresponding positioning portions 310 and finally abut against the corresponding pull studs 10 to complete the clamping operation of the cylinder head 90, and the cylinder head 90 can be driven to move through the two pull studs 10.

[0058] The innovation of the engine cylinder head fixture of the present utility model lies in:

[0059] (1) The method of grasping the cylinder head 90 by using the grab rivet 10 only occupies one side of the exhaust side of the engine and does not occupy other sides, so it has higher adaptability for various detection scenarios and occupies less space in scenarios such as handling and palletizing;

[0060] (2) The clamping component of the fixture is driven by the driving part 420, which reduces the cost and makes the clamping more stable;

[0061] (3) The method of grasping the cylinder head 90 by using two grab rivets 10 does not directly clamp the cylinder head 90, avoiding scratching the cylinder head 90;

[0062] (4) The clamping method that combines the positioning part 310 and the clamping part 410 has a more stable clamping effect. During the clamping process of the two grab rivets 10, the guide shaft 432 arranged on the moving plate 431 cooperates with the guide groove 70 arranged on the connecting plate 60, further improving the stability of the engine cylinder head fixture;

[0063] (5) Each clamping part 410 adopts a profiling structure, and a semi-circular inner wall surface that completely fits the outer peripheral surface of the corresponding grab rivet 10 is arranged on each clamping part 410, so that each clamping part 410 is not easy to fall off when clamping the corresponding grab rivet 10;

[0064] (6) Before clamping the two grab rivets 10, two positioning parts 310 are used for preliminary positioning, which is convenient for the robot to perform subsequent clamping work.

[0065] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

[0066] Such as Figures 1 to 5As shown, the engine cylinder head fixture of the present utility model is used to clamp the pull studs 10 on the engine cylinder head. Multiple pull studs 10 are installed on the engine cylinder head. The engine cylinder head fixture includes: a base 20, which is used to connect with the driving end of an external driving device; a positioning component 30. The positioning component 30 includes two positioning parts 310, and the two positioning parts 310 are arranged on the base 20 at intervals along a first predetermined direction. The two positioning parts 310 are respectively arranged corresponding to two of the multiple pull studs 10, and each positioning part 310 is sleeved outside the corresponding pull stud 10; a clamping component 40. The clamping component 40 includes two clamping parts 410, and the two clamping parts 410 are arranged on the base 20 at intervals along the first predetermined direction. The two clamping parts 410 are respectively arranged corresponding to two of the multiple pull studs 10, and the two clamping parts 410 are arranged on the base 20 so as to be able to approach or separate from each other along the first predetermined direction. Each clamping part 410 is used to press against the corresponding pull stud 10 or separate from the corresponding pull stud 10. Among them, the two clamping parts 410 are both located between the two positioning parts 310. It can be seen that the engine cylinder head fixture of the present utility model realizes the purpose of clamping the engine cylinder head 90 by clamping two pull studs 10 on the engine cylinder head 90 through the setting of the base 20, the positioning component 30 and the clamping component 40 located on the base 20. It effectively solves the problem that the engine cylinder head fixture in the prior art may affect the detection effect due to blocking part of the surface in some detection environments, improves the accuracy and reliability of the detection of the cylinder head, ensures the quality of the engine, and prolongs the service life of the engine.

[0067] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or their combinations.

[0068] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0069] In the description of the present application, it should be understood that the orientation or positional relationships indicated by orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom", etc. are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation terms do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present application; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0070] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above", etc. may be used here to describe the spatial positional relationships between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the drawings. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0071] In addition, it should be noted that the use of terms such as "first", "second", etc. to limit components is only for the convenience of differentiating the corresponding components. Without additional statements, the above terms have no special meanings, and thus should not be construed as limiting the protection scope of the present application.

[0072] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, various modifications and variations can be made to the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An engine cylinder head fixture, characterized in that, For clamping the pull studs (10) on the engine cylinder head, multiple said pull studs (10) are installed on the engine cylinder head, and the engine cylinder head fixture includes: A base (20) for connecting with the driving end of an external driving device; A positioning component (30), the positioning component (30) includes two positioning parts (310), the two positioning parts (310) are arranged at intervals on the base (20) along a first predetermined direction; the two positioning parts (310) are respectively arranged corresponding to two of the multiple pull studs (10), and each positioning part (310) is sleeved outside the corresponding pull stud (10); A clamping component (40), the clamping component (40) includes two clamping parts (410), the two clamping parts (410) are arranged at intervals on the base (20) along the first predetermined direction, the two clamping parts (410) are respectively arranged corresponding to two of the multiple pull studs (10), the two clamping parts (410) are arranged to be able to approach or separate from each other along the first predetermined direction relative to the base (20), and each clamping part (410) is used to press against the corresponding pull stud (10) or separate from the corresponding pull stud (10); wherein, the two clamping parts (410) are both located between the two positioning parts (310).

2. The engine cylinder head fixture according to claim 1, characterized in that, The engine cylinder head fixture further includes: The multiple pull studs (10) include a first pull stud (101) and a second pull stud (102) arranged at intervals; The two positioning parts (310) include a first positioning part (311) and a second positioning part (312), the first positioning part (311) is sleeved outside the first pull stud (101) for positioning through the first pull stud (101), and the second positioning part (312) is sleeved outside the second pull stud (102) for positioning through the second pull stud (102).

3. The engine cylinder head fixture according to claim 1, wherein, The positioning part (310) includes: A first base (313), the first base (313) includes a first plate body (3131) and a second plate body (3132) that are perpendicular to each other and connected, and the first plate body (3131) is connected to the base (20); A sleeve part (314), the sleeve part (314) is connected to the second plate body (3132), and the inner wall surface of the sleeve part (314) is arranged corresponding to the outer peripheral surface of the corresponding pull stud (10) to be sleeved outside the corresponding pull stud (10).

4. The engine cylinder head fixture according to claim 3, characterized in that, An avoidance opening (315) is arranged on one side of the sleeve part (314) of at least one of the positioning parts (310) close to the other positioning part (310).

5. The engine cylinder head fixture according to claim 2, wherein, The two clamping parts (410) include: The first clamping portion (411), the first clamping portion (411) is correspondingly arranged with the first pull stud (101), so that when the first positioning portion (311) is sleeved outside the first pull stud (101), the first clamping portion (411) moves in a direction close to the first positioning portion (311) to abut against the first pull stud (101). The first clamping portion (411) and the first positioning portion (311) are arranged at an interval in a second predetermined direction, and the first clamping portion (411) is located on a side of the first positioning portion (311) close to the base (20); The second clamping portion (412), the second clamping portion (412) is correspondingly arranged with the second pull stud (102), so that when the second positioning portion (312) is sleeved at the position of the second pull stud (102), the second clamping portion (412) moves in a direction close to the second positioning portion (312) to abut against the second pull stud (102). The second clamping portion (412) and the second positioning portion (312) are arranged at an interval in the second predetermined direction, and the second clamping portion (412) is located on a side of the second positioning portion (312) close to the base (20); Wherein, the second predetermined direction is perpendicular to the first predetermined direction.

6. The engine cylinder head fixture according to claim 1, wherein, The base (20) further includes: A mounting plate (50), the mounting plate (50) is arranged on a side of the positioning member (30) away from the pull stud (10) for connecting with a driving end of the external driving device; Two connecting plates (60), the two connecting plates (60) are arranged at an interval in the first predetermined direction. One ends of the two connecting plates (60) are both connected with the mounting plate (50), and the other ends of the two connecting plates (60) are respectively connected with the two positioning members (30).

7. The engine cylinder head fixture according to claim 6, characterized in that, The clamping member (40) is located between the two connecting plates (60), and the clamping member (40) further includes: A driving portion (420), the driving portion (420) includes a cylinder block and two piston rods. The cylinder block is mounted on the mounting plate (50) to fix the clamping member (40); Two moving portions (430), the two moving portions (430) are respectively connected with the two clamping portions (410), and the two moving portions (430) are respectively arranged at output ends of the two piston rods, so as to move the two clamping portions (410) to approach or separate from each other under the drive of the piston rods.

8. The engine cylinder head fixture according to claim 7, characterized in that, Each of the moving portions (430) includes: A moving plate (431), two ends of the moving plate (431) are respectively connected with the corresponding clamping portion (410) and the output end of the corresponding piston rod; A guide shaft (432) that extends along the first predetermined direction, is disposed on the moving plate (431) and is located on a side of the moving plate (431) away from the other moving plate (431) to be inserted into or separated from a guide groove (70) on the corresponding connecting plate (60) so as to guide the movement of the moving plate (431).

9. The engine cylinder head fixture according to claim 8, characterized in that, The clamping portion (410) further includes: An opening portion (440) that is disposed on a side of the moving plate (431) away from the mounting plate (50), and an opening of the opening portion (440) is located on a side of the corresponding clamping portion (410) away from the other clamping portion (410). The opening portion (440) includes a semi-circular inner wall surface that fits with an outer peripheral surface of the corresponding rivet (10) to abut against the outer peripheral surface of the corresponding rivet (10).

10. The engine cylinder head fixture according to claim 1, characterized in that, The engine cylinder head fixture further includes: A switch bracket (80) whose two ends are respectively connected to the two positioning portions (310); A limit switch that is mounted on the switch bracket (80) to contact or separate from the cylinder head (90) so as to control the working state of the clamping member (40).

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