Clamp special for grinding groove

By setting a sliding rod and connecting rod transmission system in the special grinding groove fixture and combining it with motor drive, stable clamping and position adjustment of the circular workpiece are achieved, solving the problem of unstable clamping of the circular workpiece by the existing fixture and improving the grinding accuracy and efficiency.

CN223313762UActive Publication Date: 2025-09-09JINGJIANG JIAJIA ENG MACHINERY MFG CO LTD
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Patent Information

Application Number
CN202422595464.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-28
Publication Date
2025-09-09
Estimated Expiration
2034-10-28

AI Technical Summary

Technical Problem

The existing special fixture for grinding grooves is difficult to stably clamp the circular workpiece, especially the outer ring of the circular ring, which affects the grinding accuracy and efficiency.

Method used

A special fixture for grinding grooves is designed. Slide rods are arranged at equal intervals on the top of the adjusting disk. The slide rods are connected to the connecting bars. The connecting rods are hinged to the connecting plate and the sleeve. Combined with the arc-shaped clamping plate, the sliding of the slide rods and the transmission of the connecting rods are used to adjust the opening and closing degree of the clamping plate to achieve stable clamping of the circular workpiece. The position and direction of the fixture are adjusted by motor drive.

Benefits of technology

It achieves stable clamping of the circular workpiece, can maintain the stability of the workpiece when grinding the inner or outer ring, improves the grinding accuracy and efficiency, and facilitates all-round grinding operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a special fixture for grinding a groove, which comprises a driving component, a clamping component is mounted at the top end of the driving component, the driving component comprises an adjusting disc, a plurality of sliding rods distributed at equal intervals are slidably connected to the top end of the adjusting disc, a connecting strip is fixedly connected to the top ends of the sliding rods, and a pair of connecting rods is hinged to the inner side end of the connecting strip. A connecting plate is hinged to the end, away from the connecting strip, of the connecting rod, a sleeve is fixedly connected to the end, away from the connecting rod, of the connecting plate, the clamping assembly comprises a connector, the connector is fixedly installed at the top end of the connecting strip, and an arc-shaped clamping plate is fixedly connected to the top end of the connector. The folding or unfolding degree of the arc-shaped clamping plates can be adjusted, so that the arc-shaped clamping plates can be tightly attached to the inner ring wall of the circular ring workpiece, or the arc-shaped clamping plates are driven to be folded and tightly attached to the outer ring wall of the circular ring workpiece, clamping of the circular ring workpiece is achieved, and stable clamping during inner ring grinding or outer ring grinding of a circular ring can be achieved.
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Description

Technical Field

[0001] The utility model relates to the field of clamps, in particular to a special clamp for grinding grooves. Background Art

[0002] The special fixture for groove grinding is a device specially designed to fix and position the workpiece during the groove grinding process. Its main purpose is to ensure that the workpiece can maintain an accurate position and a stable posture during the groove grinding operation, thereby ensuring the accuracy and quality of the groove. It has the functions of enhancing positioning accuracy, stability and improving processing efficiency.

[0003] China's public patent application number: CN202421958519.6, provides a special fixture for external cylindrical grinders. This solution enables the guide wheel and the clamping wheel to be rotatably connected to the two ends of the clamping frame respectively, and enables the guide wheel and the clamping wheel to fit the third inclined surface and the bar respectively, so that the guide wheel can roll along the third inclined surface and the clamping wheel can roll along the bar, thereby ensuring that the bar can rotate while avoiding shaking of the bar, so as to improve the processing accuracy of the bar. However, when the outer ring of the ring needs to be polished, the fixture mentioned in the above patent is not convenient for exposing the outer ring when clamping the ring, which is not conducive to the polishing of the ring.

[0004] To this end, we propose a special fixture for grinding grooves. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, the purpose of the present invention is to provide a special clamp for grinding grooves, by arranging sliding rods that are equidistantly arranged and slidably connected at the top of the adjusting disk, the top of the sliding rods is connected to a connecting bar, the inner side of the connecting bar is hinged to a connecting rod, the connecting rod is hinged to a connecting plate with a sleeve, and a connecting head and an arc-shaped clamp are installed at the top of the connecting bar, so as to achieve the purpose of adjusting the degree of contraction or opening of the arc-shaped clamp by utilizing the sliding of the sliding rods and the transmission of the connecting rod, so as to clamp the circular workpiece.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A special fixture for grinding grooves, including a driving assembly, a clamping assembly is installed on the top of the driving assembly, the driving assembly includes an adjusting disk, the top of the adjusting disk is slidably connected to a plurality of sliding rods arranged at equal distances, the top of the sliding rod is fixedly connected to a connecting strip, the inner side end of the connecting strip is hinged to a pair of connecting rods, the end of the connecting rod away from the connecting strip is hinged to a connecting plate, the end of the connecting plate away from the connecting rod is fixedly connected to a sleeve, the clamping assembly includes a connecting head, the connecting head is fixedly installed on the top of the connecting strip, and the top of the connecting head is fixedly connected to an arc-shaped clamping plate;

[0008] By arranging sliding rods that are equidistantly arranged and slidably connected at the top of the adjusting disk, the top of the sliding rods is connected to the connecting strip, the inner side of the connecting strip is hinged to the connecting rod, the connecting rod is hinged to the connecting plate with a sleeve, and a connecting head and an arc-shaped clamping plate are installed at the top of the connecting strip, the purpose of adjusting the degree of contraction or opening of the arc-shaped clamping plate by utilizing the sliding of the sliding rods and the transmission of the connecting rod is achieved, so as to clamp the circular workpiece.

[0009] Furthermore, the driving assembly further includes a base, the base being mounted on the bottom end of the adjusting disk, and the base being rotatably connected to the adjusting disk;

[0010] By providing a base mounted on the bottom end of the adjusting disk and rotatably connected to the adjusting disk, the adjusting disk can be rotated relative to the base, thereby facilitating adjustment of the position of the clamped workpiece.

[0011] Furthermore, a support column is fixedly connected to the interior of the base, a top end of the support column is fixedly connected to a motor, and an output end of the motor is fixedly connected to a transmission gear.

[0012] Furthermore, a shaft sleeve is fixedly connected to the top end of the adjusting disk and located on the inner side of the slide rod. The shaft sleeve passes through the bottom end of the adjusting disk and is fixedly sleeved with a driven gear, and the driven gear is meshed with the transmission gear.

[0013] Furthermore, an electric push rod is fixedly connected to the interior of the base, and a transmission end of the electric push rod is fixedly connected to a transmission rod.

[0014] Furthermore, the top end of the transmission rod passes through the top end of the shaft sleeve and extends to the interior of the sleeve, and the transmission rod is rotatably connected to the sleeve and the shaft sleeve.

[0015] Furthermore, a sliding groove adapted to the sliding rod is provided on the top of the adjusting disk, and the sliding groove is slidably connected to the sliding rod.

[0016] In summary, the present invention has the following beneficial effects:

[0017] 1. The cooperation of various parts of the driving assembly facilitates the clamping assembly to clamp the circular ring workpiece. When the outer ring of the circular ring needs to be polished, the circular ring workpiece is put on the outer side of the arc-shaped clamping plate of the clamping assembly. When the sleeve of the driving assembly moves up and down, the degree of contraction or opening of the arc-shaped clamping plate can be adjusted so that the arc-shaped clamping plate can fit closely to the inner ring wall of the circular ring workpiece, thereby clamping the circular ring. If the inner ring wall of the circular ring workpiece needs to be polished, the circular ring workpiece is placed on the inner side of the arc-shaped clamping plate, and the arc-shaped clamping plate is driven to contract and fit closely to the outer ring wall of the circular ring workpiece to achieve clamping of the circular ring workpiece. Stable clamping can be achieved when polishing the inner ring or outer ring of the circular ring. At this time, the user can perform the polishing operation on the outer ring of the circular ring workpiece.

[0018] 2. By turning the adjusting disk to drive the arc-shaped clamping plate to rotate, the direction and position of the circular workpiece can be automatically adjusted as needed when grinding the circular workpiece, which is convenient for the user to grind the circular workpiece in all directions without the user having to move the position, making the grinding more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Schematic diagram of the overall structure of this embodiment;

[0020] Figure 2 is a schematic structural diagram of a cutaway drive assembly in this embodiment;

[0021] Figure 3 Schematic diagram of the structure of the inner wall of the drive assembly in this embodiment;

[0022] Figure 4 Schematic diagram of the split structure in this embodiment;

[0023] Figure 5 It is a structural diagram of the retractable transmission in this embodiment.

[0024] In the figure, 1. driving assembly; 2. clamping assembly; 101. base; 102. electric push rod; 103. support column; 104. motor; 105. transmission gear; 106. transmission rod; 107. sleeve; 108. bushing; 109. driven gear; 110. connecting plate; 111. connecting rod; 112. connecting strip; 113. sliding rod; 114. adjusting disk; 201. connector; 202. arc splint. DETAILED DESCRIPTION

[0025] The present invention will be described in further detail below with reference to the accompanying drawings.

[0026] Identical components are denoted by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom," "top," "inner," and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

[0027] Reference Figure 1-Figure 5As shown, a special fixture for grinding grooves in a preferred embodiment of the present invention includes a driving assembly 1, a clamping assembly 2 is installed on the top of the driving assembly 1, the driving assembly 1 includes an adjusting disk 114, the top of the adjusting disk 114 is slidably connected to a plurality of sliding rods 113 arranged at equal distances, the top of the sliding rod 113 is fixedly connected to a connecting bar 112, the inner end of the connecting bar 112 is hinged to a pair of connecting rods 111, the end of the connecting rod 111 away from the connecting bar 112 is hinged to a connecting plate 110, the end of the connecting plate 110 away from the connecting rod 111 is fixedly connected to a sleeve 107, the clamping assembly 2 includes a connecting head 201, the connecting head 201 is fixedly installed on the top of the connecting bar 112, and the top of the connecting head 201 is fixedly connected to an arc-shaped clamping plate 202;

[0028] By arranging sliding rods 113 that are equidistantly arranged and slidably connected at the top of the adjusting disk 114, the top of the sliding rod 113 is connected to the connecting bar 112, the inner side of the connecting bar 112 is hinged to the connecting rod 111, the connecting rod 111 is hinged to the connecting plate 110 with the sleeve 107, and the connecting head 201 and the arc-shaped clamping plate 202 are installed at the top of the connecting bar 112, the purpose of utilizing the sliding of the sliding rod 113 and the transmission of the connecting rod 111 to adjust the degree of contraction or opening of the arc-shaped clamping plate 202 is achieved, so as to clamp the circular workpiece.

[0029] Reference Figure 2-Figure 5 As shown, the driving assembly 1 further includes a base 101, which is mounted on the bottom end of the adjustment disk 114, and the base 101 is rotatably connected to the adjustment disk 114;

[0030] By providing a base 101 mounted on the bottom end of the adjusting disk 114 and rotatably connected to the adjusting disk 114 , the adjusting disk 114 can be rotated relative to the base 101 , thereby facilitating adjustment of the position of the clamped workpiece.

[0031] A support column 103 is fixedly connected to the interior of the base 101, a motor 104 is fixedly connected to the top of the support column 103, and a transmission gear 105 is fixedly connected to the output end of the motor 104;

[0032] By setting a support column 103 inside the base 101, and fixing a motor 104 to the top of the support column 103, and connecting a transmission gear 105 to the output end of the motor 104, a power source is provided for the clamp to drive other components to move through the transmission gear 105.

[0033] The top of the adjusting disk 114 and the inner side of the sliding rod 113 are fixedly connected with a shaft sleeve 108, which passes through the bottom of the adjusting disk 114 and is fixedly fitted with a driven gear 109. The driven gear 109 is meshed with the transmission gear 105.

[0034] By setting a shaft sleeve 108 at the top of the adjusting disk 114 and on the inner side of the sliding rod 113, the shaft sleeve 108 passes through the bottom of the adjusting disk 114 and fixes the driven gear 109, and the driven gear 109 is engaged with the transmission gear 105, the power of the motor 104 is transmitted to the adjusting disk 114, so that the adjusting disk 114 rotates.

[0035] An electric push rod 102 is fixedly connected to the interior of the base 101, and a transmission rod 106 is fixedly connected to the transmission end of the electric push rod 102;

[0036] By fixing the electric push rod 102 inside the base 101 and connecting the transmission rod 106 to the transmission end of the electric push rod 102, the purpose of providing power for the up and down movement of the sleeve 107 is achieved.

[0037] The top end of the transmission rod 106 passes through the top end of the shaft sleeve 108 and extends into the interior of the sleeve 107. The transmission rod 106 is rotatably connected to the sleeve 107 and the shaft sleeve 108.

[0038] By making the top of the transmission rod 106 pass through the top of the sleeve 108 and extend into the inside of the sleeve 107, and the transmission rod 106 is rotatably connected to the sleeve 107 and the sleeve 108, the power of the electric push rod 102 is transmitted to the sleeve 107, thereby realizing the purpose of moving the sleeve 107 up and down.

[0039] The top of the adjustment disk 114 is provided with a sliding groove adapted to the sliding rod 113, and the sliding groove is slidably connected to the sliding rod 113;

[0040] By providing a sliding groove adapted to the sliding rod 113 at the top of the adjusting disk 114 and making the sliding groove slidably connected to the sliding rod 113, a track is provided for the sliding of the sliding rod 113, thereby ensuring the sliding stability of the sliding rod 113.

[0041] Specific implementation process: When it is necessary to grind the circular workpiece, first put the circular workpiece on the outside of the arc-shaped clamping plate 202 of the clamping assembly 2, start the electric push rod 102 inside the base 101, and the transmission end of the electric push rod 102 drives the transmission rod 106 to move up and down. During the downward movement of the transmission rod 106, it drives the sleeve 107 to move downward. The downward movement of the sleeve 107 causes the connecting plate 110 to move downward, and then pushes the connecting bar 112 to move outward through the connecting rod 111. The movement of the connecting bar 112 drives the sliding bar 113 to slide in the sliding groove at the top of the adjusting disk 114. While the connecting bar 112 moves outward, the arc-shaped clamping plate 202 is driven to open and fit on the inner ring wall of the circular workpiece through the connecting head 201. If it is necessary to grind the inner ring wall of the circular workpiece, place the circular workpiece on the arc-shaped clamping plate The inner side of 202 drives the electric push rod 102 to move in the opposite direction, so that the sleeve 107 moves upward, so that the arc-shaped clamping plate 202 is retracted and tightly fitted on the outer ring wall of the circular workpiece, thereby clamping the circular workpiece, and stable clamping can be achieved when grinding the inner ring or outer ring. During the grinding process, if the direction and position of the circular workpiece need to be adjusted, the motor 104 inside the base 101 is started, and the transmission gear 105 at the output end of the motor 104 rotates, driving the driven gear 109 engaged with it to rotate, and the driven gear 109 drives the shaft sleeve 108 to rotate, thereby making the adjustment disk 114 rotate relative to the base 101, and the adjustment disk 114 drives the clamping assembly 2 to rotate through the connecting bar 112 and the sliding rod 113, thereby adjusting the direction and position of the circular workpiece, which is convenient for the user to perform all-round grinding of the circular workpiece.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A special fixture for grinding grooves, characterized by: It comprises a driving assembly (1), wherein a clamping assembly (2) is mounted on the top end of the driving assembly (1); The driving assembly (1) includes an adjusting disk (114), the top end of the adjusting disk (114) is slidably connected to a plurality of sliding rods (113) arranged at equal intervals, the top end of the sliding rod (113) is fixedly connected to a connecting bar (112), the inner end of the connecting bar (112) is hinged to a pair of connecting rods (111), one end of the connecting rod (111) away from the connecting bar (112) is hinged to a connecting plate (110), and one end of the connecting plate (110) away from the connecting rod (111) is fixedly connected to a sleeve (107); The clamping assembly (2) comprises a connecting head (201), the connecting head (201) being fixedly mounted on the top end of the connecting strip (112), and the top end of the connecting head (201) being fixedly connected to an arc-shaped clamping plate (202).

2. A special fixture for grinding grooves according to claim 1, characterized in that: The driving assembly (1) further comprises a base (101), wherein the base (101) is mounted on the bottom end of the adjusting disk (114), and the base (101) is rotatably connected to the adjusting disk (114).

3. A special fixture for grinding grooves according to claim 2, characterized in that: A support column (103) is fixedly connected to the interior of the base (101), a top end of the support column (103) is fixedly connected to a motor (104), and an output end of the motor (104) is fixedly connected to a transmission gear (105).

4. The special fixture for groove grinding according to claim 1, characterized in that: A shaft sleeve (108) is fixedly connected to the top end of the regulating disk (114) and located on the inner side of the slide rod (113). The shaft sleeve (108) passes through the bottom end of the regulating disk (114) and is fixedly sleeved with a driven gear (109). The driven gear (109) is meshed with the transmission gear (105).

5. The special fixture for grinding grooves according to claim 2, characterized in that: An electric push rod (102) is fixedly connected to the interior of the base (101), and a transmission end of the electric push rod (102) is fixedly connected to a transmission rod (106).

6. The special fixture for groove grinding according to claim 5, characterized in that: The top end of the transmission rod (106) passes through the top end of the shaft sleeve (108) and extends to the interior of the sleeve (107). The transmission rod (106) is rotatably connected to the sleeve (107) and the shaft sleeve (108).

7. The special fixture for groove grinding according to claim 1, characterized in that: A sliding groove adapted to the sliding rod (113) is provided at the top end of the regulating disk (114), and the sliding groove is slidably connected to the sliding rod (113).

Citation Information

Patent Citations

  • Special fixture for cylindrical grinding machine

    CN221755758U