Tool clamp for motor end cover hole machining

Abstract

The utility model provides a work fixture for motor end cover hole machining, which comprises a fixture seat, a control cavity is arranged in the fixture seat, and a stroke groove is arranged at the top of the fixture seat; the two sliding blocks are slidably installed in the stroke grooves correspondingly, the bottom ends of the two sliding blocks are located in the control cavity correspondingly, clamping blocks are installed on the sides, close to each other, of the top ends of the two sliding blocks correspondingly, and limiting protrusions are arranged on the two sides of the faces, close to each other, of the two clamping blocks correspondingly; the control rod is rotatably mounted in the control cavity, two threaded sections with opposite screwing directions are arranged on the control rod, and the two threaded sections are in threaded screwing connection with the two sliding blocks respectively. According to the utility model, the end cover can be corrected at the center of the clamp seat, the manual correction of the position of the end cover is facilitated, and the device is suitable for various types of motor end covers, and is high in operation efficiency and good in applicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor end cover processing technical field, concretely relates to a frock clamp for motor end cover hole processing. BACKGROUND

[0002] The motor end cover is one of the core components in the motor structure, mainly bears the functions such as supporting rotor, stator positioning, sealing protection and heat dissipation. The machining precision of each hole on the motor end cover directly influences the operation stability of motor and the reliability of overall assembly. The motor end cover needs to be clamped on the fixture when carrying out hole machining. At present, when clamping the motor end cover using conventional fixture, the position of the end cover placed each time is uncertain due to the problem of low manual operation precision, and the punching position needs to be recalibrated each time, which reduces the machining efficiency, and if specific fixture is used for clamping, the machining model of the motor end cover is limited, and the machining cost is also increased. UTILITY MODEL CONTENTS

[0003] In view of the deficiencies in the prior art, the utility model provides a frock clamp for motor end cover hole machining to solve the above problems.

[0004] The utility model discloses a frock clamp for motor end cover hole machining, which comprises:

[0005] The utility model discloses a frock clamp for motor end cover hole machining, which comprises:

[0006] The fixture base is internally provided with a control cavity, and a stroke groove is formed in the top of the fixture base;

[0007] The two sliding blocks are symmetrically arranged and respectively slidably installed in the stroke grooves, and the bottom ends of the two sliding blocks are respectively located in the control cavities; The top ends of the two sliding blocks are respectively provided with clamping blocks on the side close to each other, and the two clamping blocks are respectively provided with limiting protrusions on the two sides of the side close to each other.

[0008] The control rod is parallel to the stroke groove and is rotatably installed in the control cavity, two thread segments with opposite rotation directions are arranged on the control rod, the two thread segments are respectively threadedly connected with the two sliding blocks, and one end of the control rod penetrates out of the fixture base and is provided with a handle.

[0009] Further, the side close to each other of the two clamping blocks is respectively provided with a protective pad.

[0010] Further, the top end of the two sliding blocks is provided with a rack on the side close to each other, the side away from each other of the two clamping blocks is provided with a slot for the rack to slide and insert, the top of the clamping block is rotatably installed with a first gear, the first gear is provided with a radially extending upper clamping part, the top of the clamping block is provided with a transmission opening, the transmission opening is rotatably installed with a second gear, and the second gear is engaged with the rack and the first gear respectively.

[0011] Further, the upper clamping part comprises a sleeve and an extension rod, one end of the sleeve is connected with the first gear, the extension rod is slidably inserted into the sleeve, the ends away from the sleeve of the two extension rods are bent towards each other, and the sleeve is threadedly connected with a locking stud, one end of the locking stud penetrates into the sleeve and can abut against the extension rod.

[0012] Further, the elastic member is connected between the rack and the inner wall of the slot to provide elastic force to pop the rack out of the slot.

[0013] From the above technical solution, the utility model provides a tool clamp for motor end cover hole machining:

[0014] When clamping the motor end cover, the end cover is first placed on the approximate machining position of the clamp seat, the two sliding blocks are synchronously moved in the direction close to each other by rotating the control rod, and the placed end cover is corrected to the center of the clamp seat, and when the limiting protrusions of the two clamping blocks are in contact with the end cover, if the center of the end cover is slightly offset from the line connecting the midpoints of the two clamping blocks, the limiting protrusions will push the end cover to correct to the center, until the four limiting protrusions are in abutment with the end cover, thereby the end cover can be corrected to the center of the clamp seat, which is beneficial to assist manual correction of the end cover position, and the device is suitable for various types of motor end covers, has high operation efficiency and good applicability. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the utility model, the following will be briefly introduced the drawings needed to be used in the specific embodiments. In all the drawings, the elements or parts are not necessarily drawn according to the actual proportion.

[0016] Figure 1 It is the sectional view of the front view structural schematic diagram of the utility model;

[0017] Figure 2 It is the sectional view of the front view structural schematic diagram of the utility model; Figure 1 It is the local enlarged view of A in the utility model;

[0018] Figure 3 It is the top view structural schematic diagram of the clamping block in the utility model;

[0019] Reference signs:

[0020] Clamp seat 1, control cavity 11, stroke groove 12;

[0021] Sliding block 2, clamping block 21, protective pad 211, insertion groove 212, first gear 213, upper clamping part 214, sleeve 2141, extension rod 2142, locking stud 2143, transmission port 215, second gear 216, limiting protrusion 217, rack 22, elastic member 23;

[0022] Control lever 3, threaded section 31, handle 32. DETAILED DESCRIPTION

[0023] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model will be described in detail as follows in combination with the drawings and preferred embodiments.

[0024] As shown in the drawings, the utility model provides a tool clamp for motor end cover hole machining, which comprises a clamp seat 1, a sliding block 2 and a control lever 3. Figures 1-2

[0025] The top of the clamp seat 1 is used for placing the motor end cover, and the inside of the clamp seat 1 is provided with a control cavity 11; the top of the clamp seat 1 is provided with a stroke groove 12, and the midpoint of the stroke groove 12 is located at the center of the clamp seat 1, and the two ends of the stroke groove 12 linearly extend towards the two sides of the clamp seat 1 respectively.

[0026] The two sliding blocks 2 are symmetrically arranged and are slidably installed in the stroke groove 12; the bottom ends of the two sliding blocks 2 are located in the control cavity 11 respectively, and the top ends of the two sliding blocks 2 are respectively provided with a clamping block 21 on the side close to each other; the two clamping blocks 21 are respectively provided with limiting protrusions 217 on the two sides of the side close to each other, as shown in the drawings. Figure 3 Since the motor end cover is usually in the shape of a disc, when the two clamping blocks 21 are close to each other, the end cover between the two clamping blocks 21 can be clamped on the four limiting protrusions 217, so that the end cover is located at the center line of the adjacent two limiting protrusions 217, and four-point limiting is formed.

[0027] The control lever 3 is parallel to the stroke groove 12 and is rotatably installed in the control cavity 11; the control lever 3 is provided with two threaded sections 31 with opposite rotation directions, and the two threaded sections 31 are respectively threadedly connected with the two sliding blocks 2; one end of the control lever 3 penetrates out of the clamp seat 1 and is provided with a handle 32.

[0028] ​When clamping the motor end cover, the end cover is placed on the approximate machining position of the clamp seat 1, the two sliding blocks 2 are synchronously moved in the direction of approaching each other by rotating the control rod 3, and the placed end cover is corrected to the center of the clamp seat 1, and when the limit protrusions 217 of the two clamping blocks 21 are in contact with the end cover, if the center of the end cover is slightly offset from the line connecting the midpoints of the two clamping blocks 21, the limit protrusions 217 will push the end cover to the center until the four limit protrusions 217 are in abutment with the end cover, thereby realizing the correction of the end cover to the center of the clamp seat 1, which is beneficial to assist manual correction of the end cover position, and the device is suitable for various types of motor end covers, and has high operation efficiency and good applicability.

[0029] Preferably, the side of the two clamping blocks 21 close to each other is provided with a protective pad 211, which is beneficial to prevent the limit protrusions 217 from scratching the surface of the end cover.

[0030] In an embodiment, the top end of the two sliding blocks 2 close to each other is respectively provided with a rack 22, the side of the two clamping blocks 21 away from each other is provided with a slot 212 for sliding insertion of the rack 22, the top of the clamping block 21 is rotatably installed with a first gear 213, the first gear 213 is provided with a radially extending upper clamping portion 214, the top of the clamping block 21 is provided with a transmission opening 215, and the transmission opening 215 is rotatably installed with a second gear 216, which is engaged with the rack 22 and the first gear 213. When the end cover is clamped by the two clamping blocks 21, the control rod 3 can be continuously rotated to make the sliding block 2 continue to move, the rack 22 will extend into the slot 212, the first gear 213 is driven to rotate by the second gear 216, and the upper clamping portion 214 can be rotated to approach the top of the end cover, thereby clamping the top of the end cover and improving the fixing force of the end cover.

[0031] Further, the upper clamping portion 214 includes a sleeve 2141 and an extension rod 2142, one end of the sleeve 2141 is connected with the first gear 213, the extension rod 2142 is slidingly inserted into the sleeve 2141, the ends of the two extension rods 2142 away from the sleeve 2141 are bent towards each other, the sleeve 2141 is threadedly connected with a locking stud 2143, one end of the locking stud 2143 penetrates into the sleeve 2141 and can abut against the extension rod 2142, the length of the extension rod 2142 extending out of the sleeve 2141 can be adjusted according to the size of the clamped end cover, and then the extension rod 2142 is fixed by the locking stud 2143, thereby improving the adaptability to different sizes of motor end covers.

[0032] Preferably, the rack 22 is connected with the elastic member 23 between the inner wall of the slot 212, to provide elastic force to pop the rack 22 out of the slot 212, after the motor end cover hole is processed, the control lever 3 is rotated to separate the two clamping blocks 21, under the elastic force of the elastic member 23, the rack 22 can be popped out of the slot 212, and then the upper clamping part 214 is away from the upper side of the end cover, the end cover is conveniently taken down.

[0033] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed with the preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the disclosed technical content without departing from the technical solution of the present application, and any equivalent embodiments with equivalent changes and modifications are still within the scope of the present application.

Claims

1. A tooling fixture for machining end cover holes of an electric motor, characterized in that, The utility model provides a kind of clamp, including: Clamp seat, control cavity is arranged inside, the top of the clamp seat is provided with stroke slot; Two sliding blocks are symmetrically arranged and are slidably installed in stroke slot, the bottom of two sliding blocks is respectively located in control cavity, the top of two sliding blocks is respectively installed with clamping block on the side close to each other, the side close to each other of two clamping blocks is respectively provided with limiting protrusion; Control lever is parallel with stroke slot, and is rotatably installed in control cavity, two parts of the thread section with opposite rotation direction are arranged on the control lever, and two parts of the thread section are respectively threadedly connected with two sliding blocks, one end of the control lever is arranged with handle outside clamp seat.

2. The jig clamp for machining of the motor end cover hole according to claim 1, characterized by The side close to each other of two clamping blocks is respectively provided with protective pad.

3. The jig clamp for machining of the motor end cover hole according to claim 1, characterized by The top of two sliding blocks is respectively provided with rack on the side close to each other, the side away from each other of two clamping blocks is provided with insertion slot for rack sliding insertion, first gear is rotatably installed on the top of clamping block, the upper clamping part extending radially is arranged on the first gear, transmission port is arranged on the top of clamping block, second gear is rotatably installed in transmission port, and the second gear is engaged with rack and first gear.

4. The jig clamp for machining of the motor end cover hole according to claim 3, characterized by The upper clamping part includes sleeve and extension rod, one end of the sleeve is connected with first gear, the extension rod is slidably inserted into sleeve, the end away from sleeve of two extension rods is bent towards each other, locking stud is threadedly connected with sleeve, one end of the locking stud is inserted into sleeve and can abut against extension rod.

5. The jig clamp for machining of the motor end cover hole according to claim 3, characterized by Spring is connected between rack and insertion slot inner wall to provide elastic force to eject rack from insertion slot.

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